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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3618. Отображено 100.
16-05-2013 дата публикации

ALLOY CAST IRON AND MANUFACTURING METHOD OF VANE USING THE SAME

Номер: US20130118651A1
Автор: PARK Jaebong
Принадлежит: LG ELECTRONICS INC.

An alloy cast iron, a method of manufacturing a vane for a rotary compressor, and a vane for a rotary compressor using the alloy cast iron are disclosed. The alloy cast iron according to one exemplary embodiment includes, by weight, 3.2 to 3.8% carbon, 2.0 to 2.6% silicon, 0.5 to 1.0% Manganese, 0.2 to 0.6% chrome, 0.1 to 0.6% molybdenum, 0.04 to 0.15% titanium, less than 0.3% phosphorus, less than 0.1% sulphur, and the rest percentage of iron and foreign materials, wherein the alloy cast iron includes a martensitic matrix structure, flake graphite, and 15 to 30% carbide in volume ratio. 1. An alloy cast iron comprising , by weight:3.2 to 3.8% carbon (C);2.0 to 2.6% silicon (Si);0.5 to 1.0% manganese (Mn);0.2 to 0.6% chrome (Cr);0.1 to 0.6% molybdenum (Mo);0.04 to 0.15% titanium(Ti);less than 0.3% phosphorus (P);less than 0.1% sulphur (S); anda remainder of iron (Fe) and foreign materials,wherein the alloy cast iron comprises a martensitic matrix structure, flake graphite, and 15 to 30% carbide in volume ratio.2. The alloy cast iron of claim 1 , further comprising an inoculant added in a molten state.3. The alloy cast iron of claim 2 , wherein the inoculant is added by 0.4 to 1.0% of the mass of the molten mass.4. The alloy cast iron of claim 1 , wherein the alloy cast iron is formed by cooling the molten metal in a cast to transform into the martensitic matrix structure through quenching and tempering.5. The alloy cast iron of claim 4 , wherein the quenching is carried out by keeping the alloy cast iron at a temperature of 860 to 950° C. for 0.5 to 1.5 hours and cooling the alloy cast iron to room temperature.6. The alloy cast iron of claim 4 , wherein the tempering is carried out by keeping the quenched alloy cast iron at a temperature of 180 to 220° C. for 0.5 to 1.5 hours claim 4 , and cooling the alloy cast iron to room temperature.7. The alloy cast iron of claim 4 , further comprising a sulfurized layer having a thickness of 0.005 to 0.0015 mm claim 4 , the ...

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Номер записи: 1
16-05-2013 дата публикации

ALLOY CAST IRON AND MANUFACTURING METHOD OF ROLLING PISTON USING THE SAME

Номер: US20130118652A1
Автор: PARK Jaebong
Принадлежит: LG ELECTRONICS INC.

An alloy cast iron, and a method of manufacturing a rolling piston for a rotary compressor includes, by weight, 3.0˜3.5% carbon (C), 2.2˜2.4% silicon (Si), 0.5˜1.0% manganese (Mn), 0.1˜0.3% phosphorus (P), 0.06˜0.08% sulfur (S), 0.7˜1.0% chrome (Cr), 0.6˜1.0% copper (Cu), and a residue formed of Fe and inevitable impurities, wherein 3˜8 vol % steadite structure is formed. 1. An alloy cast iron comprising , by weight:3.0˜3.5% carbon (C);2.2˜2.4% silicon (Si);0.5˜1.0% manganese (Mn);0.1˜0.3% phosphorus (P);0.06˜0.08% sulfur (S);0.7˜1.0% chrome (Cr);0.6˜1.0% copper (Cu); anda residue formed of Fe and inevitable impurities,wherein 3˜8 vol % steadite structure is formed.2. The alloy cast iron of claim 1 , wherein the alloy cast iron undergoes a thermal processing including quenching and tempering.3. The alloy cast iron of claim 2 , wherein the quenching is performed by maintaining the alloy cast iron at 900±10° C. for 90˜150 minutes claim 2 , then by oil-cooling the alloy cast iron to 50˜90° C. claim 2 , and then by maintaining the alloy cast iron at 50˜90° C. for 5˜7 hours.4. The alloy cast iron of claim 3 , wherein the tempering is performed by maintaining the alloy cast iron at 250±10° C. for 150˜210 minutes claim 3 , and then by cooling the alloy cast iron to room temperature in air.5. The alloy cast iron of claim 4 , wherein the tempered alloy cast iron has a Rockwell hardness of 45˜55.6. A method of manufacturing a rolling piston for a rotary compressor claim 4 , the method comprising:a melting step of preparing a molten metal comprising, by weight, 3.0˜3.5% carbon (C), 2.2˜2.4% silicon (Si), 0.5˜1.0% manganese (Mn), 0.1˜0.3% phosphorus (P), 0.06˜0.08% sulfur (S), 0.7˜1.0% chrome (Cr), 0.6˜1.0% copper (Cu), and a residue formed of Fe and inevitable impurities;a casting step of pouring the molten metal in a mold and cooling thereby preparing a semi-product in which 3˜8 vol % steadite structure is formed;a grinding step of grinding the cooled semi-product to a ...

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Номер записи: 2
16-05-2013 дата публикации

NODULAR GRAPHITE CAST IRON AND METHOD FOR FABRICATING VANE USING THE SAME

Номер: US20130122325A1
Автор: PARK Jaebong
Принадлежит: LG ELECTRONICS INC.

A nodular graphite cast iron, a method for fabricating a vane for a rotary compressor using nodular graphite cast iron, and a vane for a rotary compressor using the same are provided. The nodular graphite cast iron includes 3.4 wt % to 3.9 wt % of carbon (C), 2.0 wt % to 3.0 wt % of silicon (Si), 0.3 wt % to 1.0 wt % of manganese (Mn), 0.1 wt % to 1.0 wt % of chromium (Cr), 0.04 wt % to 0.15 wt % of titanium (Ti), less than 0.08 w% of phosphorus (P), less than 0.025 wt % of sulphur (S), 0.03 wt % to 0.05 wt % of magnesium (Mg), 0.02 wt % to 0.04 wt % of rare earth resource, iron (Fe) and impurities as the remnants, and includes a bainite matrix structure, nodular graphite, and 15 vol % to 35 vol % of carbide. 1. A nodular graphite cast iron comprising:3.4 wt % to 3.9 wt % of carbon ((C);2.0 wt % to 3.0 wt % of silicon (Si);0.3 wt % to 1.0 wt % of manganese (Mn);0.1 wt % to 1.0 wt % of chromium (Cr);0.04 wt % to 0.15 wt % of titanium (Ti);less than 0.08 w% of phosphorus (P);less than 0.025 wt % of sulphur (S);0.03 wt % to 0.05 wt % of magnesium (Mg);0.02 wt % to 0.04 wt % of rare earth resource;iron (Fe) and impurities as the remnants; anda bainite matrix structure, nodular graphite, and 15 vol % to 35 vol % of carbide.2. The nodular graphite cast iron of claim 1 , further comprising:a spheroidizing agent and an inoculant added to a molten state of the nodular graphite cast iron.3. The nodular graphite cast iron of claim 2 , wherein the spheroidizing agent is added in the amount of 1.0%˜1.8% of a mass of the molten nodular graphite cast iron.4. The nodular graphite cast iron of claim 1 , wherein the bainite matrix structure of the nodular graphite cast iron is obtained by transforming an austenite matrix structure through a heat treatment.5. The nodular graphite cast iron of claim 4 , wherein the heat treatment is performed by heating to a temperature ranging from 880° C. to 950° C. claim 4 , maintained at the temperature for 30 to 90 minutes claim 4 , maintained in ...

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Номер записи: 3
07-11-2013 дата публикации

GREY IRON ALLOY AND BRAKE DISC CONTAINING GREY IRON ALLOY

Номер: US20130292217A1
Автор: Erhav Dan, Hammerström Lars, Skoglund Peter, Stenfors Sven-Eric, Tamminen Jarmo, Thibblin Anders, Wilberfors Fredrik
Принадлежит:

The invention relates to a grey iron alloy having (in wt %): 1. A grey iron alloy comprising (in wt %):C: ≦4.2%Si: <1.30%Mn: 0.4−0.8%Nb: 0.05−0.4%Cr: ≦0.4%Cu: ≦0.7%V+Ti+Mo: ≦0.4%P: <0.05%S: <0.1%with a remainder of said alloy comprising Fe and naturally occurring impurities, and having a degree of saturation Sc, expressed as % C/(4.26−0.317*(% Si)+0.027(% Mn)−0.3(%P))>1.2. The grey iron alloy according to claim 1 , having a C content of 3.9−4.1%.3. The grey iron alloy according to having a Si content of 1−1.25%.4. The grey iron alloy according to claim 1 , having a Mn content of 0.5−0.7%.5. The grey iron alloy according to claim 1 , having a Nb content of 0.1−0.4%.6. The grey iron alloy according to claim 1 , having a Nb content of 0.15−0.35%.7. The grey iron alloy according to claim 1 , having a Cr content of 0−0.2%.8. The grey iron alloy according to claim 1 , having a Cu content of 0.4−0.6%.9. The grey iron alloy according to claim 1 , having a V content of ≦0.2%.10. The grey iron alloy according to claim 1 , having a Ti content of ≦0.05%.11. The grey iron alloy according to claim 1 , having a Mo content of ≦0.3%.12. The grey iron alloy according to claim 1 , having a S content of<0.08%.13. The grey iron alloy according to claim 1 , having a P content of<0.025%.14. A brake disc comprised of a grey iron alloy according to . The present invention relates to a grey iron alloy according to the preamble of claim . The invention relates also to a brake disc which contains the grey iron alloy according to the invention.Grey iron is a type of cast iron whose structure consists of graphite flakes, so-called lamellar graphite, in for example a perlitic matrix. This structure gives the grey iron good characteristics with regard to vibration absorption and heat conduction, making it a suitable material for brake discs.Brake discs are subject to substantial loads when the vehicle's kinetic energy is converted to heat in them during braking. Repeated braking operations may ...

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Номер записи: 4
23-01-2014 дата публикации

Alloy, corresponding part and manufacturing method

Номер: US20140023548A1
Автор: Jean-Baptiste Prunier
Принадлежит: Ferry-Capitain Sarl

A spheroidal graphite cast iron alloy comprises, in % by weight, in addition to addition elements, the following elements: Ni between 3.5% and 7%, Cu between 0.5% and 3%, Mo between 0.15% and 1%, the remainder being iron and inevitable impurities. The spheroidal graphite cast iron alloy may be used in manufacturing a part such as cogwheels and gear rims. The method of manufacturing the part may comprise casting a rough casting blank, notably into a mold, and letting the rough casting blank cool in the mold, thus obtaining the part.

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Номер записи: 5
30-01-2014 дата публикации

CAST IRON CONTAINING NIOBIUM AND COMPONENT

Номер: US20140030133A1
Автор: Dekker Lutz, Günther Guido, Janssen Stefan, Lange Susanne, Scholz Alfred, Sheng Shilun, Tonn Babette, Vierbaum Mark, Wanjura Stefan
Принадлежит:

Known cast iron alloys have use limits in respect of the temperature. An alloy (in a weight percentage) including silicon 2.0%-4.5%, carbon 2.9%-4.0%, niobium 0.05%-0.7%, molybdenum 0.3%-1.5%, optionally cobalt 0.1%-2.0%, manganese≦0.3%, nickel≦0.5%, magnesium≦0.07%, phosphorus≦0.05%, sulphur≦0.012%, chromium≦0.1%, antimony≦0.004%, and, iron, is provided. 118-. (canceled)21. The alloy as claimed in claim 19 , further comprising 0.1% by weight-0.2% by weight niobium.22. The alloy as claimed in claim 19 , further comprising 0.4% by weight-0.6% by weight niobium.23. The alloy as claimed in claim 20 , wherein the alloy does not comprise cobalt.24. The alloy as claimed in claim 20 , wherein the alloy comprises 0.4% by weight to 0.6% by weight cobalt.25. The alloy as claimed in claim 20 , wherein the alloy comprises 0.9% by weight to 1.0% by weight cobalt.26. The alloy as claimed in claim 20 , wherein the alloy comprises 1% by weight to 2% by weight cobalt.27. The alloy as claimed in claim 20 , wherein the alloy comprises 0.1% by weight cobalt.28. The alloy as claimed in claim 21 , wherein a proportion of silicon claim 21 , cobalt claim 21 , molybdenum and niobium is less than 6.5% by weight of the alloy.29. The alloy as claimed in claim 21 , wherein a proportion of molybdenum and niobium does not exceed 1.5% by weight of the alloy.30. The alloy as claimed in claim 19 , wherein the alloy comprises 2.0% by weight-3.0% by weight silicon.31. The alloy as claimed in claim 19 , wherein the alloy comprises 3.0% by weight-4.5% by weight silicon.32. The alloy as claimed in claim 19 , wherein the alloy contains no nickel except as a possible impurity.33. The alloy as claimed in claim 20 , wherein the alloy comprises at least 0.01% by weight nickel.34. The alloy as claimed in claim 19 , wherein the alloy comprises 2.5% by weight to 3.7% by weight carbon.35. The alloy as claimed in claim 19 , wherein the alloy comprises no chromium except as a possible impurity.36. The alloy as ...

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Номер записи: 6
03-04-2014 дата публикации

CAST IRON CONTAINING NIOBIUM AND COMPONENT

Номер: US20140093416A1
Автор: Dekker Lutz, Günther Guido, Janssen Stefan, Michel Susanne, Scholz Alfred, Sheng Shilun, Tonn Babette, Vierbaum Mark, Wanjura Stefan
Принадлежит:

An alloy is provided. The alloy comprises (in % by weight): 3. The alloy as claimed in claim 1 , wherein the alloy comprises 0.05% by −0.2% by weight niobium.4. The alloy as claimed in claim 1 , wherein the alloy comprises 0.4% by −0.6% by weight niobium.5. The alloy as claimed in claim 1 , wherein the alloy comprises 0.4% to 0.6% by weight cobalt.6. The alloy as claimed in claim 1 , wherein the alloy comprises 0.9% to 1.1% by weight cobalt.7. The alloy as claimed in claim 1 , wherein the proportion of silicon claim 1 , cobalt claim 1 , molybdenum claim 1 , and niobium is less than 6.5% by weight of the alloy.8. The alloy as claimed in claim 1 , wherein the proportion of molybdenum and niobium does not exceed 1.5% by weight of the alloy.9. The alloy as claimed in claim 1 , wherein the alloy comprises 2.0%-3.0% by weight silicon.10. The alloy as claimed in claim 1 , wherein the alloy comprises 3.0%-4.5% by weight silicon.11. The alloy as claimed in claim 1 , wherein the alloy comprises 3.15%-3.40% by weight silicon.12. The alloy as claimed in claim 1 , wherein the alloy comprises 3.9%-4.1% by weight silicon.13. The alloy as claimed in claim 1 , wherein the alloy comprises no nickel and no chromium except as a possible impurity.14. The alloy as claimed in claim 1 , wherein the alloy comprises at least 0.01% by weight nickel.15. The alloy as claimed in claim 1 , wherein the alloy comprises 3.2% to 3.4% by weight carbon.16. The alloy as claimed in claim 1 , wherein the alloy comprises 3.4% to 3.7% by weight carbon.18. A component claim 1 , consisting of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'an alloy as claimed in ,'}wherein the alloy is a housing part of a steam turbine or of a gas turbine. The present application claims priority to German application No. 102012217892.9 DE filed Oct. 1, 2012, the entire content of which is hereby incorporated herein by reference.The invention relates to a cast iron containing niobium as claimed in the claims and to a ...

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Номер записи: 7
07-01-2016 дата публикации

METHOD FOR PRODUCING POWDER METAL COMPOSITIONS FOR WEAR AND TEMPERATURE RESISTANCE APPLICATIONS AND METHOD OF PRODUCING SAME

Номер: US20160001369A1
Автор: "LEsperance Gilles", Beaulieu Philippe, Christopherson, Farthing Leslie John, JR. Denis B., Schoenwetter Todd
Принадлежит:

A powder metal composition for high wear and temperature applications is made by atomizing a melted iron based alloy including 3.0 to 7.0 wt. % carbon; 10.0 to 25.0 wt. % chromium; 1.0 to 5.0 wt. % tungsten; 3.5 to 7.0 wt. % vanadium; 1.0 to 5.0 wt. % molybdenum; not greater than 0.5 wt. % oxygen; and at least 40.0 wt. % iron. The high carbon content reduces the solubility of oxygen in the melt and thus lowers the oxygen content to a level below which would cause the carbide-forming elements to oxidize during atomization. The powder metal composition includes metal carbides in an amount of at least 15 vol. %. The microhardness of the powder metal composition increases with increasing amounts of carbon and is typically about 800 to 1,500 Hv50. 1. A method of forming a powder metal composition , comprising the steps of:providing a melted iron based alloy including 3.0 to 7.0 wt. % carbon, 10.0 to 25.0 wt. % chromium, 1.0 to 5.0 wt. % tungsten, 3.5 to 7.0 wt. % vanadium, 1.0 to 5.0 wt. % molybdenum, not greater than 0.5 wt. % oxygen, and at least 40.0 wt. % iron, based on the total weight of the melted iron based alloy; andatomizing the melted iron based alloy to provide atomized droplets of the iron based alloy.2. The method of including grinding the atomized droplets to remove oxide skin from the atomized droplets.3. The method of claim 1 , wherein the atomizing step includes forming metal carbides in an amount of at least 15 vol. % claim 1 , based on the total volume of the melted iron based alloy.4. The method of claim 3 , wherein the metal carbides are selected from the group consisting of: M8C7 claim 3 , M7C3 claim 3 , M6C claim 3 , wherein M is at least one metal atom and C is carbon.5. The method of claim 4 , wherein M8C7 is (V63Fe37)8C7; M7C3 is selected from the group consisting of: (Cr34Fe66)7C3 claim 4 , Cr3.5Fe3.5C3 claim 4 , and Cr4Fe3C3; and M6C is selected from the group consisting of: Mo3Fe3C claim 4 , Mo2Fe4C claim 4 , W3Fe3C claim 4 , and W2Fe4C.6. ...

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Номер записи: 8
04-01-2018 дата публикации

METHOD FOR PRODUCING POWDER METAL COMPOSITIONS FOR WEAR AND TEMPERATURE RESISTANCE APPLICATIONS

Номер: US20180001387A1
Автор: "LEsperance Gilles", Beaulieu Philippe, Christopherson, Farthing Leslie John, JR. Denis B., Schoenwetter Todd
Принадлежит:

A powder metal composition for high wear and temperature applications is made by atomizing a melted iron based alloy including 3.0 to 7.0 wt. % carbon; 10.0 to 25.0 wt. % chromium; 1.0 to 5.0 wt. % tungsten; 3.5 to 7.0 wt. % vanadium; 1.0 to 5.0 wt. % molybdenum; not greater than 0.5 wt. % oxygen; and at least 40.0 wt. % iron. The high carbon content reduces the solubility of oxygen in the melt and thus lowers the oxygen content to a level below which would cause the carbide-forming elements to oxidize during atomization. The powder metal composition includes metal carbides in an amount of at least 15 vol. %. The microhardness of the powder metal composition increases with increasing amounts of carbon and is typically about 800 to 1,500 Hv50. 1. A method of forming a powder metal composition , comprising the steps of:providing a melted iron based alloy including 3.0 to 7.0 wt. % carbon, 10.0 to 25.0 wt. % chromium, 1.0 to 5.0 wt. % tungsten, 3.5 to 7.0 wt. % vanadium, 1.0 to 5.0 wt. % molybdenum, not greater than 0.5 wt. % oxygen, and at least 40.0 wt. % iron, based on the total weight of the melted iron based alloy; andatomizing the melted iron based alloy to provide atomized droplets of the iron based alloy.2. The method of including grinding the atomized droplets to remove oxide skin from the atomized droplets.3. The method of claim 1 , wherein the atomizing step includes forming metal carbides in an amount of at least 15 vol. % claim 1 , based on the total volume of the melted iron based alloy.4. The method of claim 3 , wherein the metal carbides are selected from the group consisting of: M8C7 claim 3 , M7C3 claim 3 , M6C claim 3 , wherein M is at least one metal atom and C is carbon.5. The method of claim 4 , wherein M8C7 is (V63Fe37)8C7; M7C3 is selected from the group consisting of: (Cr34Fe66)7C3 claim 4 , Cr3.5Fe3.5C3 claim 4 , and Cr4Fe3C3; and M6C is selected from the group consisting of: Mo3Fe3C claim 4 , Mo2Fe4C claim 4 , W3Fe3C claim 4 , and W2Fe4C.6. ...

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Номер записи: 9
03-01-2019 дата публикации

HARD METAL MATERIALS

Номер: US20190003014A1
Автор: Dolman Kevin
Принадлежит:

A hard metal material and a method of manufacturing a component of the hard metal material are disclosed. The hard metal material comprises 5-50 volume % particles of a refractory material dispersed in a host metal. The method comprises forming a slurry of 5-50 volume % particles of the refractory material dispersed in a liquid host metal in an liquid atmosphere and pouring the slurry into a mould and forming a casting of the component. 1. A hard metal material comprising 5-50 volume % particles of a refractory material dispersed in a host metal , wherein the refractory material comprises particles of carbides and/or nitrides and/or borides of any one or more than one of titanium , zirconium , hafnium , vanadium , niobium , tantalum , chromium , and molybdenum.2. The hard metal material defined in wherein the particles of the refractory material also comprise tungsten.3. The hard metal material defined in comprises 5-40 volume % particles of the refractory material dispersed in the host metal.4. The hard metal material defined in comprises greater than 10 volume % particles of the refractory material dispersed in the host metal.5. The hard metal material defined in comprises less than 30 volume % particles of the refractory material dispersed in the host metal.6. The hard metal material defined in wherein the host metal comprises a ferrous alloy claim 1 , a stainless steel claim 1 , an austenitic-manganese steel claim 1 , or an iron-based or a nickel-based or a cobalt-based superalloy.7. A method of manufacturing a component of a hard metal material comprising:(a) forming a slurry of a hard metal material comprising 5-50 volume % particles of a refractory material dispersed in a liquid host metal in an inert atmosphere, and(b) pouring the slurry into a mould and forming a casting of the component in an inert atmosphere.8. The method defined in comprises forming the slurry and thereafter forming the casting of the component in a chamber under vacuum conditions which ...

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Номер записи: 10
19-01-2017 дата публикации

Spheroidal graphite cast iron for an engine exhaust system

Номер: US20170016098A1
Автор: Dong-Seob Shim, Jae-Hyoung HWANG, Jong-Kwon CHUNG, Ki-Hwan JUNG, Sang-Beom Kim, Sik Yang, Young-Kyu JU
Принадлежит: Doosan Infracore Co Ltd

A spheroidal graphite cast iron for a component of an engine exhaust system includes carbon ranging from about 3.0 wt % to about 3.4 wt %, silicon ranging from about 4.2 wt % to about 4.5 wt %, manganese ranging from about 0.1 wt % to about 0.3 wt %, sulfur ranging from about 0.002 wt % to about 0.01 wt %, phosphorous in a range equal to or less than about 0.05 wt %, magnesium ranging from about 0.035 wt % to about 0.055 wt %, molybdenum ranging from about 0.9 wt % to about 1.2 wt %, nickel ranging from about 0.2 wt % to about 0.5 wt %, vanadium ranging from about 0.4 wt % to about 0.6 wt %, niobium ranging from about 0.1 wt % to about 0.4 wt %, cerium ranging from about 0.005 wt % to about 0.01 wt %, aluminum ranging from about 0.003 wt % to about 0.007 wt %, and a remainder of iron.

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Номер записи: 11
21-01-2021 дата публикации

Gray Cast Iron Alloy, and Internal Combustion Engine Head

Номер: US20210017633A1
Автор: BAUMER Ivo, CABEZAS Carlos De Souza, GUESSER Wilson Luiz, SILVA Eder dos Reis
Принадлежит: TuPy S.A.

The present invention refers to a gray cast iron alloy with chemical composition especially developed to promote high hot mechanical strength and good thermal conductivity, with antimony and nitrogen contents, wherein the antimony content ranges from 0.05 to 0, 12% by weight, and the nitrogen content ranges from 0.008 to 0.013% by weight, based on the total weight of the gray cast iron alloy. 1. Gray cast iron alloy , characterized by presenting a chemical composition with antimony and nitrogen contents , where the antimony content ranges from 0.05 to 0.12% by weight , and the nitrogen content ranges from 0.008 to 0.013% by weight , based on the total weight of the gray cast iron alloy.2. Iron alloy claim 1 , according to claim 1 , characterized by further comprising contents of at least one of the following elements: carbon claim 1 , phosphorus claim 1 , silicon claim 1 , manganese claim 1 , sulfur claim 1 , chromium claim 1 , copper claim 1 , tin claim 1 , molybdenum and iron.3. Iron alloy claim 1 , according to claim 1 , characterized in that the chromium content ranges from 0.05 to 0.25% by weight claim 1 , based on the total weight of the gray cast iron alloy.4. Iron alloy claim 1 , according to claim 1 , characterized in that the copper content ranges from 0.01 to 0.95% by weight claim 1 , based on the total weight of the gray cast iron alloy.5. Iron alloy claim 1 , according to claim 1 , characterized in that the tin content ranges from 0.01 to 0.12% by weight claim 1 , based on the total weight of the gray cast iron alloy.6. Iron alloy claim 1 , according to claim 1 , characterized in that the molybdenum content ranges from 0.03 to 0.30% by weight claim 1 , based on the total weight of the gray cast iron alloy.7. Internal combustion engine head claim 1 , characterized in that it is made of gray cast iron alloy claim 1 , as defined in . The present invention refers to a gray cast iron alloy with chemical composition especially developed to promote high hot ...

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Номер записи: 12
28-01-2016 дата публикации

PROFILED BINDING FOR A ROLLER PRESS

Номер: US20160023215A1
Автор: Frangenberg Meinhard
Принадлежит:

A process for producing a profiled binding for use in a roller press. An alloy containing a high degree of chromium is used. A high wear-resistance of the binding is thereby achieved, wherein the binding is not sensitive with respect to build-up welding in order to reconstruct the profile after wear. 2. The process according to claim 1 , wherein the casting step is performed by static casting.3. The process according to claim 1 , wherein the casting step is performed by centrifugal casting.4. The process as claimed in claim 3 , comprising the steps of:introducing axial grooves into the surface of the cylindrical hollow body by at least one of grinding machining and molding in during the casting in a casting mold.6. The process as claimed in claim 3 , further including the steps:introducing axial grooves into the surface of the cylindrical hollow body by at least one of grinding machining and molding in during the casting in a casting mold. This application is a divisional of application Ser. No. 13/703,988, filed Dec. 13, 2012.The invention relates to a profiled casing for a roller press for subjecting particulate material to be ground to high-pressure treatment, to a process for producing said profiled casing and to the use of a defined iron alloy having a high chromium content for producing said profiled casing.For the comminution of particulate and brittle material to be ground, it is known to comminute the material to be ground not by shear stress—as is conventional but rather in an energetically economical manner solely by the application of high pressure in a roller nip. In addition to its energetically favorable use, this type of comminution also has the further advantage of an increased service life of the rollers used to generate the pressure in the roller nip.In the comminution of rock and very hard and abrasive clinker, there is a predetermined limit to the service life of a roller of a roller press, however, which is caused by the severe abrasion brought ...

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Номер записи: 13
22-01-2015 дата публикации

BEARING COMPONENT

Номер: US20150023623A1
Автор: Beswick John, Sherif Mohamed
Принадлежит:

A bearing component formed from a steel composition and providing carbon, silicon, manganese, chromium, cobalt, vanadium, and at least one of the following elements sulphur, phosphorous, molybdenum, aluminium, arsenic, tin, antimony, and the balance iron, together with impurities. 1. A bearing component formed from a steel composition comprising:(a) from 1.8-2.8 wt. % carbon,(b) from 1.0-2.0 wt. % silicon,(c) from 1.0-2.5 wt. % manganese,(d) from 1.0-2.5 wt. % chromium,(e) from 1.0-2.0 wt. % cobalt,(f) from 5.0-11.0 wt. % vanadium, and from 0-0.1 wt. % sulphur,', 'from 0-0.1 wt. % phosphorous,', 'from 0-1.35 wt. % molybdenum,', 'from 0-0.5 wt. % aluminium,', 'from 0-0.075 wt. % arsenic,', 'from 0-0.075 wt. % tin,', 'from 0-0.075 wt. % antimony,, '(g) at least one of the following elements(h) the balance wt. % iron and impurities.2. The bearing component as claimed in claim 2 , wherein the sum of arsenic claim 2 , tin and antimony is no more than 0.075 wt. %.3. The bearing component as claimed in claim 2 , wherein the alloy comprises ≦15 ppm oxygen.4. The bearing component as claimed in claim 1 , wherein the alloy comprises ≦30 ppm titanium.5. The bearing component as claimed in claim 1 , wherein the alloy comprises ≦10 ppm calcium.6. The bearing component as claimed in claim 1 , comprises from 2.2 to 2.5 wt. % carbon.7. The bearing component as claimed in claim 1 , comprising from 1.4-1.6 wt. % silicon.8. The bearing component as claimed in claim 1 , comprising from 1.6-1.8 wt. % manganese.9. The bearing component as claimed in claim 1 , comprising from 1.6-1.8 wt. % chromium.10. The bearing component as claimed in claim 1 , comprising from 1.3-1.5 wt. % cobalt.11. The bearing component as claimed in claim 1 , comprising from 7.0-8.0 wt. % vanadium.12. The bearing component as claimed in claim 1 , comprising from 0-0.015 wt. % sulphur.13. The bearing component as claimed in claim 1 , comprising from 0-0.02 wt. % phosphorous.14. The bearing component as claimed in ...

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Номер записи: 14
28-01-2016 дата публикации

HIGH STRENGTH NODULAR CAST IRON POLE AND PREPARATION TECHNOLOGY THEREOF

Номер: US20160024623A1
Автор: YU Pei
Принадлежит:

The invention discloses a high strength nodular cast iron pole and a preparation technology thereof. The preparation technology is characterized by comprising the following steps: (1) preparation before pole casting, to be specific, preparation of raw materials, smelting of iron, adding of alloying elements and nodulizing; (2) a pole casting procedure, to be specific, casting and inoculation treatment; and (3) heat treatment. The invention also provides the high strength nodular cast iron pole prepared by adopting the preparation technology, comprising multiple tower poles which are sequentially connected in an inserted manner, wherein each tower pole is a cone-frustum hollow column which has the conicity of 1000: 11-26; the top end of the high strength nodular cast iron pole is equipped with a tower cap. The high strength nodular cast iron pole has the advantages of high bearing capacity, thin wall thickness, light weight, low manufacturing cost and the like. 1. A preparation technology of a high strength nodular cast iron pole , characterized by comprising the following steps:{circle around (1)} preparation before pole casting, including preparation of raw materials, iron smelting, adding of alloying elements and nodulizing process;A1: preparation of raw materials is the adopted raw materials include 90-95 wt % of foundry pig iron or blast-furnace molten iron and 5-10 wt % of steel scrap;A2: iron smelting, including weighing raw materials according to above-mentioned percentage by mass, sequentially adding the raw materials into a medium frequency furnace, starting a power source and raising temperature of the furnace to 1470-1500° C. to melt the raw materials;A3: adding of the alloying elements, to be specific, is adding Cu, Mo, Ni and V according to the performances of the product, and then the mass percentages of various elements in the molten iron are:C: 3.4-3.8%, Si: 1.2-2.6%, Mn: 0.3-0.5%, Cu: 0.15-0.5%, Mo: 0.3-1.0%, Ni: 1-2%, V: 0.3-0.5%, P≦0.06%, S≦0.025 ...

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Номер записи: 15
02-02-2017 дата публикации

LUBRICATION-FREE PIECE FOR A RAILWAY DEVICE

Номер: US20170030022A1
Автор: Barresi Francesco
Принадлежит:

The disclosure relates to a lubrication-free piece having a friction surface that rubs against a second surface, the lubrication-free piece having at least one structure made from spheroidal graphite cast iron or steel, the external surface of the piece including at least one layer of lubricating thermoplastic polymers, wherein the lubrication-free piece includes a nickel/aluminium-based intermediary layer between the spheroidal graphite cast iron or steel structure and the layer of lubricating thermoplastic polymers. 1. A lubrication-free piece for a railroad device comprising:a friction surface that rubs against a second surface;a spheroidal graphite cast iron or steel structure, with an external surface of the lubrication-free piece having at least a layer of lubricating thermoplastic polymers; anda nickel-aluminum based intermediate layer between the spheroidal graphite cast iron or steel structure and the layer of lubricating thermoplastic polymers.2. The lubrication-free piece or part according to claim 1 , wherein a surface of the spheroidal graphite cast iron or steel structure onto which is arranged the nickel-aluminum based intermediate layer claim 1 , produces a relief that is at least partially filled by the nickel-aluminum based intermediate layer.3. The lubrication-free piece according to claim 1 , wherein the nickel-aluminum based intermediate layer produces an isolation of spheroidal graphite particles.4. The lubrication-free piece according to claim 1 , wherein the lubricating thermoplastic polymers include at least a thermostable semi-crystalline thermoplastic.5. The lubrication-free piece according to claim 1 , wherein the lubricating thermoplastic polymers include at least a polyether ether ketone.6. A joint forming a sliding assembly comprising: the lubrication-free piece having a friction surface according to .7. A treatment process of a surface of a spheroidal graphite cast iron or steel structure for achieving a reduction of friction ...

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Номер записи: 16
06-02-2020 дата публикации

PISTON WITH COFUSED ALFIN RING AND PROCESS TO OBTAIN IT

Номер: US20200038948A1
Автор: Anguillesi Dimitri
Принадлежит:

The present invention relates to a process for producing a piston made of hypereutectic Al—Si alloy with a cast iron Alfin ring and a piston obtained through said process. The process according to the invention allows to obtain high adhesion of the Alfin ring to the piston body, making it particularly suitable for use in high performance engines. 1. A process to produce for a piston made of a hypereutectic Al—Si alloy comprising at least one Alfin ring , comprising the steps of:(i) providing at least one cast iron ring;(ii) soaking said at least one cast iron ring in at least one aluminium plating bath comprising an Al—Si alloy comprising 8.0-12.0 wt. % of Si at the temperature of 650°-750° C.;(iii) extracting the cast iron ring from the aluminium plating bath and inserting it in a casting mold;(iv) pouring a hypereutectic Al—Si alloy comprising 16-24 wt. % of Si into the mold, at a casting temperature of 760°-900° C., thereby obtaining a piston comprising at least one Alfin ring;(v) cooling and extracting the piston from the mold.2. The process according to claim 1 , wherein the at least one cast iron ring comprises Ni-resist austenitic cast iron comprising 12.0-22.0 wt. % of Ni claim 1 , the remaining part being iron and optionally further alloying elements selected from C claim 1 , Si claim 1 , Mn claim 1 , Cr claim 1 , Cu claim 1 , unavoidable impurities and mixtures thereof.4. The process according to claim 1 , wherein the aluminium plating bath comprises an Al—Si alloy comprising 10.0-11.5 wt. % of Si.5. The process according to claim 1 ,wherein the aluminium plating bath comprises an Al—Si alloy comprising Fe and Cu as alloying elements in an overall amount 4 wt. %.7. A piston made of a hypereutectic Al—Si alloy comprising at least one Alfin ring obtained from the process according to claim 1 , wherein the hypereutectic Al—Si alloy comprises 16-24 wt. % of Si.8. The piston according to claim 7 , comprising at least one Alfin ring made of “Ni-resist” ...

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Номер записи: 17
26-02-2015 дата публикации

GREY CAST IRON HAVING EXCELLENT DURABILITY

Номер: US20150053077A1
Автор: Nam Duk-Hyun
Принадлежит:

Disclosed is grey cast iron having an excellent durability and comprising carbon (C) in an amount of about 2.6 to 3.2 wt %, copper (Cu) in an amount of about 0.7 to 0.9 wt %, phosphorus (P) in an amount of about 0.4 to 0.7 wt %, molybdenum (Mo) in an amount of about 0.2 to 0.4 wt %, tin (Sn) in an amount of about 0.02 to 0.08 wt %, and a balance of iron (Fe) and trace amounts of unavoidable impurities, and a method for production thereof. The present invention improves tensile strength, fatigue strength, and the like and further reduces friction coefficient of the grey cast iron as compared with a conventional material. The grey cast iron has an excellent durability and provides a cost reduction of about 10% or more as compared with a conventional material. 1. A grey cast iron comprising:carbon (C) in an amount of about 2.6 to 3.2 wt %;copper (Cu) in an amount of about 0.7 to 0.9 wt %;phosphorus (P) in an amount of about 0.4 to 0.7 wt %,molybdenum (Mo) in an amount of about 0.2 to 0.4 wt %,tin (Sn) in an amount of about 0.02 to 0.08 wt %;a balance of iron (Fe); andtrace amounts of impurities,wherein the wt % are relative to the total weight of the grey cast iron.2. The grey cast iron of claim 1 , wherein the grey cast iron further comprises:silicon (Si) in an amount of about 1.8 to 2.2 wt %; manganese (Mn) in an amount of about 0.6 to 1.0 wt %; chromium (Cr) in an amount of less than about 0.4 wt % and greater than 0 wt %; andsulfur (S) in an amount of less than about 0.1 wt % and greater than 0 wt %,wherein the wt % are relative to the total weight of the grey cast iron.3. The grey cast iron of claim 2 , wherein the tin (Sn) claim 2 , the chromium (Cr) claim 2 , and the copper (Cu) satisfy a relationship of about 1.1 wt %≦about (5×wt % of Sn+wt % of Cr+wt % of Cu)≦about 1.5 wt %.4. The grey cast iron of claim 2 , wherein the grey cast iron has a tensile strength of about 270 to 400 MPa claim 2 , a fatigue strength of about 120 to 190 MPa claim 2 , and a friction ...

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Номер записи: 18
25-02-2016 дата публикации

HIGH-STENGTH, HIGH-DAMPING-CAPACITY CAST IRON

Номер: US20160053351A1
Автор: FUJIMOTO Ryousuke, HAREYAMA Takumi
Принадлежит:

A high-strength, high-damping-capacity cast iron having both a high strength and high vibration damping capacity is provided. 1. A high-strength , high-damping-capacity cast iron obtained by a method including performing a graphite spheroidizing treatment on a molten metal , and consisting of 2% to 4% of C , 1% to 5% of Si , 0.2% to 0.9% of Mn , 0.1% or less of P , 0.1% or less of S , 3% to 7% of Al , 0% to 1% of Sb , 0% to 0.5% of Sn , 0.02% to 0.10% of Mg , 0.001% to 0.500% of RE consisting of Ce and/or La at an arbitrary ratio , Fe as balance , and unavoidable impurity.2. The high-strength claim 1 , high-damping-capacity cast iron according to claim 1 , wherein the content of Sb is 0.2% to 1% or a content of Sn is 0.1% to 0.5%.3. The high-strength claim 1 , high-damping-capacity cast iron according to claim 1 , wherein a content of Sb is 0.5% to 1%.4. The high-strength claim 1 , high-damping-capacity cast iron according to claim 1 , wherein a content of RE is 0.001% to 0.050%.5. The high-strength claim 1 , high-damping-capacity cast iron according to claim 1 , wherein the method further includes an inoculation treatment of adding claim 1 , to the molten metal claim 1 , an inoculant consisting of at least one element of Ca and Ba such that in the cast iron claim 1 , a content of Ca would be 0.0001% to 0.01% or a content of Ba would be 0.0001% to 0.01%.6. The high-strength claim 5 , high-damping-capacity cast iron according to claim 5 , wherein the inoculation treatment includes late inoculation.7. The high-strength claim 1 , high-damping-capacity cast iron according to claim 1 , wherein the method further includes performing at 900° C. or more claim 1 , quenching claim 1 , normalizing claim 1 , or annealing.8. The high-strength claim 1 , high-damping-capacity cast iron according to claim 1 , wherein the method further includes performing at 1 claim 1 ,000° C. or more claim 1 , quenching claim 1 , normalizing claim 1 , or annealing.9. The high-strength claim 1 , ...

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Номер записи: 19
15-05-2014 дата публикации

Metal cored welding wire, hardband alloy and method

Номер: US20140131338A1
Автор: Christopher J. Postle
Принадлежит: Postle Industries Inc

Various embodiments of a metal cored wires, hardband alloys, and methods are disclosed. In one embodiment of the present invention, a hardbanding wire comprises from about from about 16% to about 30% by weight chromium; from about 4% to about 10% by weight nickel; from about 0.05% to about 0.8% by weight nitrogen; from about 1% to about 4% by weight manganese; from about 1% to about 4% by weight carbon from about 0.5% to about 5% by weight molybdenum; from about 0.25% to about 2% by weight silicon; and the remainder is iron including trace elements. The hardband alloy produced by the metal cored wire meets API magnetic permeability specifications and has improved metal to metal, adhesive wear resistance compared to conventional hardband alloys.

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Номер записи: 20
21-02-2019 дата публикации

Spheroidal Graphite Cast Iron Excellent in Gas Defect Resistance

Номер: US20190055631A1
Автор: Kawabata Masahide, YAMANE Hideya
Принадлежит:

There is provided with spheroidal graphite cast iron having excellent gas defect resistance where gas defects such as pinholes attributable to the free N are small in number and having mechanical characteristics and machinability equal to or greater than the conventional ones. The spheroidal graphite cast iron consists of, in mass ratio, C: 3.3 to 4%; Si: 2 to 3%; P: not more than 0.05%; S: not more than 0.02%; Mn: not more than 0.8%; Cu: not more than 0.8% (0 is not included); Mg: 0.02 to 0.06%; Ti: 0.01 to 0.04%; V: 0.001 to 0.01%; Nb: 0.001 to 0.01%; and N: 0.004 to 0.008%, with the remnant substantially consisting of Fe and an inevitable impurity. 15-. (canceled)6. A spheroidal graphite cast iron excellent in gas defect resistance consisting of , in mass ratio:C: 3.3 to 4%;Si: 2 to 3%;P: not more than 0.05%;S: not more than 0.02%;Mn: not more than 0.8%;Cu: not more than 0.8% (0 is not included);Mg: 0.02 to 0.06%;Ti: 0.01 to 0.04%;V: 0.001 to 0.01%;Nb: 0.001 to 0.01%; andN: 0.004 to 0.008%,with the remnant substantially consisting of Fe and an inevitable impurity.7. The spheroidal graphite cast iron according to claim 6 , {'br': None, '0.8≤(0.29Ti+0.27V+0.15Nb)/N≤2.0\u2003\u2003(1)'}, 'wherein the spheroidal graphite cast iron contains, in mass ratio, 0.015 to 0.045% Ti, V and Nb in total and further, contains Ti, V, Nb and N so as to satisfy the following expression (1)here, the element symbols in the expression (1) represent the contents [mass ratio (%)] of the elements in the spheroidal graphite cast iron.8. The spheroidal graphite cast iron according to claim 6 ,wherein the spheroidal graphite cast iron contains, in mass ratio, not less than 0.005% P and not less than 0.005% S.9. The spheroidal graphite cast iron according to claim 6 ,wherein the spheroidal graphite cast iron contains, in mass ratio, not less than 0.2% Mn and not less than 0.1% Cu.10. The spheroidal graphite cast iron according to claim 6 ,wherein the spheroidal graphite cast iron is not less ...

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Номер записи: 21
07-03-2019 дата публикации

SPHEROIDAL GRAPHITE CAST IRON, CAST ARTICLE AND AUTOMOBILE STRUCTURE PART MADE THEREOF, AND METHOD FOR PRODUCING SPHEROIDAL GRAPHITE CAST IRON ARTICLE

Номер: US20190071756A1
Автор: WANG Lin
Принадлежит: HITACHI METALS, LTD.

A spheroidal graphite cast iron meeting N≥250, N/N≥0.6, and N/N≤0.2, wherein Nrepresents the number (/mm) of graphite particles having equivalent-circle diameters of 5 μm or more, Nrepresents the number (/mm) of graphite particles having equivalent-circle diameters of 5 μm or more and less than 20 μm, and Nrepresents the number (/mm) of graphite particles having equivalent-circle diameters of 30 μm or more, among graphite particles observed in an arbitrary cross section of at least 1 mm. 1. A spheroidal graphite cast iron , wherein graphite particles observed in an arbitrary cross section of at least 1 mmmeet{'br': None, 'i': 'N', 'sub': '(5-)', '≥250,'}{'br': None, 'i': N', '/N, 'sub': (5-20)', '(5-), '≥0.6, and'}{'br': None, 'i': N', '/N, 'sub': (30-)', '(5-), '≤0.2,'}{'sub': (5-)', '(5-20)', '(30-), 'sup': 2', '2', '2, 'wherein Nrepresents the number (/mm) of graphite particles having equivalent-circle diameters of 5 μm or more, Nrepresents the number (/mm) of graphite particles having equivalent-circle diameters of 5 μm or more and less than 20 μm, and Nrepresents the number (/mm) of graphite particles having equivalent-circle diameters of 30 μm or more.'}2. The spheroidal graphite cast iron according to claim 1 , wherein said graphite particles meet N≥100 claim 1 , wherein Nrepresents the number (/mm) of graphite particles having equivalent-circle diameters of 2 μm or more and less than 5 μm.3. The spheroidal graphite cast iron according to claim 1 , wherein said graphite particles meet N/N≥0.65.4. The spheroidal graphite cast iron according to claim 1 , wherein said graphite particles meet D≥50.4 μm claim 1 , wherein Drepresents the maximum equivalent-circle diameter of graphite particles.5. The spheroidal graphite cast iron according to claim 1 , wherein said graphite particles meet −0.15≤[N−N]/N≤0.25 claim 1 , wherein Nrepresents the number (/mm) of graphite particles having equivalent-circle diameters of 5 m or more and less than 10 μm claim 1 , and ...

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Номер записи: 22
24-03-2022 дата публикации

Vermicular Cast Iron Alloy, Combustion Engine Block and Head

Номер: US20220090238A1
Автор: CABEZAS Carlos De Souza, Martins Maria Furbino, MELLERAS Eitan
Принадлежит:

The present invention refers to a vermicular cast iron alloy specially designed for blocks and heads of internal combustion engines that have special requirements for mechanical strength and machinability; said vermicular alloy has a microstructure that results in high values of mechanical properties, such as a minimum strength limit of 500 Mpa, a minimum yield limit of 350 MPa, along with good machinability; also, wherein the ferritization factor must be such that it is between 3.88 and 5.48. This set of properties makes it possible to design new engine blocks and heads with complex geometry, high mechanical properties, without compromising machinability, making it attractive both from a technical and economic point of view. 1. Vermicular cast iron alloy comprising carbon contents in the range of 2.6% to 3.2% , manganese values between 0.1% to 0.3% , maximum phosphorus of 0.05% , chromium less than 0.06% , tin less than 0.03% and copper less than 0.20%;the alloy characterized by presenting a microstructure with a ferritic matrix comprising at least 90% of ferrite and at least 70% of vermicular graphite;said alloy comprising silicon in the range of 4.60% to 5.70%;and wherein the Ferritization Factor (F.F.) calculated as F.F.=% Si−% Cu−10×% Sn−1.2×% Mn−0.5×% Mn is between 3.88 to 5.48.2. Vermicular cast iron alloy claim 1 , according to characterized in that it presents graphite nodules in up to 30% of the microstructure.3. Vermicular cast iron alloy claim 1 , according to characterized in that it has a minimum strength limit of at least 500 MPa and a minimum yield limit of at least 350 Mpa.4. Internal combustion engine head claim 1 , characterized in that it is manufactured in vermicular cast iron alloy claim 1 , as defined in .5. Internal combustion engine block claim 1 , characterized in that it is manufactured in vermicular cast iron alloy claim 1 , as defined in . The present invention refers to a vermicular cast iron alloy specially designed for blocks and ...

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Номер записи: 23
16-03-2017 дата публикации

IMPACT RESISTANT DUCTILE IRON CASTINGS

Номер: US20170073784A1
Автор: Reiling Jason, SOWDEN Ike S.
Принадлежит:

A highly impact resistant ductile iron casting is made from a specified high nickel content ductile iron composition and post-treated with a specified heating and cooling profile to achieve an elongation exceeding the ASTM A536 (“60-40-18”) standard, and meeting or exceeding Charpy V Notch impact resistance at −20° F. of greater than 11.0 ft. lbs. 1. A ductile iron alloy composition having carbon present in a range of 3.75% to 3.93%;manganese present in a range of 0.10% to 0.19%; phosphorus present in an amount up to 0.032%; sulfur present in an amount up to 0.021%; silicon present in a range of 1.95% to 2.39%; nickel present in a range of 0.81% to 0.99%; copper present in a range of 0.02% to 0.09%; and having a Carbon Equivalence greater than 4.3; the iron composition having a tensile strength of at least 58,000 psi; yield strength at least 38,000 psi; elongation at least 21%; and Charpy V notch impact resistance at −20° F. of at least 11 ft. lbs.2. The ductile iron alloy composition according to claim 1 , wherein the carbon is present in a range of 3.75% to 3.90% claim 1 , the silicon is present in a range of 2.08% to 2.39%; the manganese is present in a range of 0.11% to 0.19%; and the sulfur is present in an amount up to 0.016%.3. The ductile iron alloy composition according to having a tensile strength of at least 60 claim 1 ,000 psi and yield strength of at least 40 claim 1 ,000 psi.4. The ductile iron alloy composition according to claim 1 , wherein the composition is a casting having a maximum thickness up to 4 inches.5. The ductile iron alloy composition according to claim 1 , wherein the composition is a casting used in the rail industry.6. The ductile iron alloy composition of claim 5 , wherein the composition is a casting selected from the group consisting of a bearing housing claim 5 , a lifting hook claim 5 , and a chevron adapter.7. The ductile iron alloy composition according to claim 1 , wherein the composition is hypereutectic and has a Carbon ...

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Номер записи: 24
16-03-2017 дата публикации

HEAT RESISTANT SPHEROIDAL GRAPHITE CAST IRON, METHOD OF MANUFACTURING THE SAME AND ENGINE EXHAUST SYSTEM PART INCLUDING THE SAME

Номер: US20170073798A1
Автор: CHUNG Jong-Kwon, HWANG Jae-Hyoung, JU Young-Kyu, JUNG Ki-Hwan, Kim Sang-Beom, SHIM Dong-Seob, Yang Sik
Принадлежит:

Heat resistant spheroidal graphite cast iron having an improved high temperature tensile strength includes carbon (C) in a range of 3.2-3.4 wt %, silicon (Si) in a range of 4.3-4.8 wt %, manganese (Mn) in a range of 0.2-0.3 wt %, molybdenum (Mo) in a range of 0.8-1.0 wt %, vanadium (V) in a range of 0.4-0.6 wt %, chrome (Cr) in a range of 0.2-0.4 wt %, niobium (Nb) in a range of 0.2-0.4 wt %, inevitable impurities, and a remainder of iron (Fe) based on a total weight of the heat resistant spheroidal graphite cast iron. The heat resistant spheroidal graphite cast iron further includes barium (Ba) in a range of 0.0045-0.0075 wt %. A content ratio of chrome (Cr) and barium (Ba) (Cr/Ba) is in a range from about 26 to about 89. 1. A heat resistant spheroidal graphite cast iron for an engine component , comprising:carbon (C) in a range from about 3.2 weight percent to about 3.4 weight percent, silicon (Si) in a range from about 4.3 weight percent to about 4.8 weight percent, manganese (Mn) in a range from about 0.2 weight percent to about 0.3 weight percent, molybdenum (Mo) in a range from about 0.8 weight percent to about 1.0 weight percent, vanadium (V) in a range from about 0.4 weight percent to about 0.6 weight percent, chrome (Cr) in a range from about 0.2 weight percent to about 0.4 weight percent, niobium (Nb) in a range from about 0.2 weight percent to about 0.4 weight percent, inevitable impurities, and a remainder of iron (Fe), based on a total weight of the heat resistant spheroidal graphite cast iron.2. The heat resistant spheroidal graphite cast iron of claim 1 , wherein the heat resistant spheroidal graphite cast iron has tensile strength of about 670 Mpa or more at a room temperature claim 1 , and has high temperature tensile strength of 100 Mpa or more at 700° C. and of 59 Mpa or more at 800° C.3. The heat resistant spheroidal graphite cast iron of claim 1 , wherein the heat resistant spheroidal graphite cast iron has a thermal expansion coefficient of ...

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Номер записи: 25
24-03-2016 дата публикации

PHYSICAL PROPERTY IMPROVEMENT OF IRON CASTINGS USING CARBON NANOMATERIALS

Номер: US20160083812A1
Автор: Pickrell Kevin
Принадлежит: DRESSER-RAND COMPANY

A method is provided for fabricating iron castings for metallic components. The method for fabricating the iron castings may include forming a molten solution by melting carbon and iron and combining carbon nanomaterials with the molten solution. A first portion of the carbon nanomaterials combined with the molten solution may be dispersed therein. The method may also include cooling the molten solution to solidify at least a portion of the carbon thereof to fabricate the iron castings. The first portion of the carbon nanomaterials may be dispersed in the iron castings. 1. A method for fabricating iron castings for a metallic component , comprising:forming a molten solution by melting carbon and iron;combining carbon nanomaterials with the molten solution, a first portion of the carbon nanomaterials dispersed in the molten solution; andcooling the molten solution to solidify at least a portion of the carbon thereof, thereby fabricating the iron castings, the first portion of the carbon nanomaterials dispersed in the iron castings.2. The method of claim 1 , further comprising dissolving a second portion of the carbon nanomaterials in the molten solution claim 1 , the second portion of the carbon nanomaterials having a defect density greater than a defect density of the first portion of the carbon nanomaterials.3. The method of claim 1 , wherein the carbon nanomaterials are selected from the group consisting of carbon nanotubes claim 1 , buckyballs claim 1 , fullerenes claim 1 , and combinations thereof.4. The method of claim 1 , further comprising functionalizing the carbon nanomaterials such that one or more chemical moieties are associated therewith.5. The method of claim 1 , wherein the carbon nanomaterials increase nucleation sites for the solidification of the at least a portion of the carbon dissolved in the molten solution.6. The method of claim 1 , wherein the carbon nanomaterials comprise carbon nanotubes claim 1 , the carbon nanotubes having a tubular ...

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Номер записи: 26
26-03-2015 дата публикации

High rigid spheroidal graphite cast iron

Номер: US20150086410A1
Автор: Tadaaki Kanbayashi, Tomoyuki Tobita
Принадлежит: Riken Corp

A high rigid spheroidal graphite cast iron, comprising: 2.0 mass % to less than 2.7 mass % or more than 3.0 mass % to less than 3.6 mass % of C, 1.5 to 3.0 mass % of Si, 1.0% or less of Mn, 1.0 mass % or less of Cu, 0.02 to 0.07 mass % of Mg and the residual Fe and inevitable impurities, wherein a carbon equivalent (a CE value) calculated by the mathematical expression (1): CE=C(mass %)+Si (mass %)/3 in terms of C and Si contents is 2.8 to 3.2% within a first range from 2.0 mass % to less than 2.7 mass % of C and is 3.6 to 4.2% within a second range from more than 3.0 mass % to less than 3.6 mass % of C, and the Young's modulus is 170 G or more.

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Номер записи: 27
12-06-2014 дата публикации

COMPACTED GRAPHITE IRON, ENGINE CYLINDER HEAD AND VEHICLE

Номер: US20140161657A1
Автор: LEE Jeong Seop, Nam Duk Hyun
Принадлежит: HYUNDAI MOTOR COMPANY

A compacted graphite iron having composition comprising: Fe as a major ingredient, C: of about 3.4˜4.2 wt %, Si: of about 1.5˜2.5 wt %, P: 0.10 wt % or less (not including 0), S: of about 0.10 wt % or less (not including 0), Cr: of about 0.10 wt % or less (not including 0), Mn: of about 0.1˜0.6 wt %, Cu: of about 0.2˜1.6 wt %, Sn: of about 0.1 wt % or less (not including 0), Mg: of about 0.05 wt % or less (not including 0), Mo: of about 0.05˜0.5 wt %, at least one ingredient of V: of about 0.05˜0.5 wt % and Ti: of about 0.05˜0.5 wt %, and other inevitable impurities; an engine cylinder head; and a vehicle. 1. A compacted graphite iron having composition comprising: Fe as a major ingredient , C: of about 3.4˜4.2 wt % , Si: of about 1.5˜2.5 wt % , P: of about 0.10 wt % or less (not including 0) , S: of about 0.10 wt % or less (not including 0) , Cr: of about 0.10 wt % or less (not including 0) , Mn: of about 0.1˜0.6 wt % , Cu: of about 0.2˜1.6 wt % , Sn: of about 0.1 wt % or less (not including 0) , Mg: of about 0.05 wt % or less (not including 0) , Mo: of about 0.05˜0.5 wt % , at least one ingredient of V: of about 0.05˜0.5 wt % and Ti: of about 0.05˜0.5 wt % , and other inevitable impurities.2. An engine cylinder head manufactured with the composition comprising the compacted graphite iron according to .3. A vehicle equipped with an engine cylinder head manufactured with the composition comprising the compacted graphite iron according to . This application claims under 35 U.S.C. §119(a) the benefit of Korean Patent Application No. 10-2012-0144952 filed on Dec. 12, 2012 the entire contents of which are incorporated herein by reference.(a) Technical FieldThe present invention relates to a CGI (compacted graphite iron), which is suitable to be used to vehicle parts and the like such as engine cylinder heads, particularly to a compacted graphite iron having excellent tensile strength and thermo-mechanical fatigue life, an engine cylinder head formed with the compacted ...

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Номер записи: 28
25-03-2021 дата публикации

DISC/BRAKE FRICTION TORQUE FOR RAILWAY VEHICLES

Номер: US20210088093A1
Автор: Boffelli Roberto, DE SOCCIO Vittorio
Принадлежит:

A disc/brake friction torque for railway vehicles consisting of at least one pad comprising at least one friction element and a disc. The friction element is made of a sintered material comprising copper, iron, graphite, 0.02 to 1.5% by weight of molybdenum, 1 to 3% by weight of chrome and a porosity ranging from 20 to 35%; and the disc is made of cast iron comprising 0.05 to 2% by weight of chrome, 0.05 to 2% by weight of molybdenum, 0.1 to 2% by weight of nickel. 1. A disc/brake friction torque for railway vehicles , the disc/brake friction torque consisting of:at least one pad including at least one friction element and a disc;wherein said at least one friction element is made of a sintered material including copper, iron, graphite, 0.02 to 1.5% by weight of molybdenum, 1 to 3% by weight of chrome, and a porosity ranging from 20 to 35%; andwherein said disc is made of cast iron comprising 0.05 to 2% by weight of chrome, 0.05 to 2% by weight of molybdenum, 0.1 to 2% by weight of nickel.2. The disc/brake friction torque according to claim 1 , wherein said sintered material of said at least one friction element includes 0.05 to 1% by weight of molybdenum claim 1 , 1 to 1.5% by weight of chrome claim 1 , and a porosity ranging from 25 to 30%.3. The disc/brake friction torque according to claim 1 , wherein said sintered material of said at least one friction element includes 10 to 70% by weight of copper claim 1 , 5 to 40% by weight of iron claim 1 , 5 to 20% by weight of graphite claim 1 , and 5 to 20% by weight of friction modifiers.4. The disc/brake friction torque according to claim 1 , wherein the cast iron making up the disc includes 0.1 to 2% by weight of chrome claim 1 , 0.1 to 2% by weight of molybdenum claim 1 , and 0.5 to 1.5% by weight of nickel.5. The disc/brake friction torque according to claim 1 , wherein the cast iron making up the disc includes 3 to 5% by weight of carbon claim 1 , 1 to 2% by weight of silicon claim 1 , 0.5 to 1% by weight of ...

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Номер записи: 29
28-03-2019 дата публикации

CYLINDRICAL MEMBER MADE OF FLAKE GRAPHITE CAST IRON

Номер: US20190093203A1
Автор: Hatakeyama Koichi, Sato Akira, SAYAMA Akira
Принадлежит:

Provided is a cylindrical member made of flake graphite cast iron that has practical processability as well as excellent mechanical strength and further is excellent in abrasion resistance and seizing resistance. Specifically, provided is a cylindrical member made of flake graphite cast iron, the flake graphite cast iron including a composition containing, in terms of mass %, 2.85% or more and 3.35% or less of C, 1.95% or more and 2.55% or less of Si, 0.45% or more and 0.8% or less of Mn, 0.03% or more and 0.25% or less of P, 0.15% or less of S, 0.15% or more and 0.55% or less of Cr, 0.15% or more and 0.65% or less of Mo, 0.15% or more and 0.65% or less of Ni, and the balance of Fe and inevitable impurities. 1. A cylindrical member made of flake graphite cast iron ,the flake graphite cast iron comprising a composition containing, in terms of mass %, 2.85% or more and 3.35% or less of C, 1.95% or more and 2.55% or less of Si, 0.45% or more and 0.8% or less of Mn, 0.03% or more and 0.25% or less of P, 0.15% or less of S, 0.15% or more and 0.55% or less of Cr, 0.15% or more and 0.65% or less of Mo, 0.15% or more and 0.65% or less of Ni, and the balance of Fe and inevitable impurities.2. A cylindrical member made of flake graphite cast iron ,the flake graphite cast iron comprising a composition containing, in terms of mass %, 2.85% or more and 3.35% or less of C, 1.95% or more and 2.55% or less of Si, 0.45% or more and 0.8% or less of Mn, 0.03% or more and 0.25% or less of P, 0.15% or less of S, 0.15% or more and 0.55% or less of Cr, 0.15% or more and 0.65% or less of Mo, 0.15% or more and 0.65% or less of Ni, 0.05% or more and 0.55% or less of Cu, and the balance of Fe and inevitable impurities.3. (canceled)4. The cylindrical member made of flake graphite cast iron according to claim 1 , wherein the flake graphite cast iron has a structure containing at least one kind of base selected from the group consisting of pearlite and bainite.5. The cylindrical member made of ...

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Номер записи: 30
26-03-2020 дата публикации

AS-CAST HIGH STRENGTH NODULAR IRON WITH FAVORABLE MACHINABILITY

Номер: US20200095655A1
Автор: Cremonesi James D., Gerard Dale A., Velasco Orosco Eduardo, Wang Qigui, Yang Jianghuai
Принадлежит:

A nodular iron alloy and automotive components, such as crankshafts, are provided. The nodular iron alloy may include iron, about 3.3-3.9 wt % carbon, about 0.2-0.5 wt % manganese, about 1.9-2.6 wt % silicon, about 0.15-0.30 wt % copper, about 0.03-0.06 wt % magnesium, about 0-0.02 wt % sulfur, about 0-0.1 wt % chromium, about 0-0.05 wt % phosphorus, and/or about 0-0.01 wt % tin. The nodular iron alloy may include a number of graphite nodules, each having a diameter between 15 and 120 micrometers, and the graphite nodules having a number density of at least 90 per square millimeter. Iron may surround the graphite nodules in an amount of 20-40% of a ferrite microstructure and 60-80% of a pearlite microstructure. The nodular iron alloy may have an ultimate tensile strength in the range of 550 MPa to 680 MPa as-cast and at least 80% nodularity. 1. A nodular iron alloy comprising:iron;carbon;silicon;about 0.2 to about 0.5 weight percent manganese; andabout 0.15 to about 0.30 weight percent copper.2. The nodular iron alloy of claim 1 , wherein the iron is provided in an amount of at least 92.5 weight percent.3. The nodular iron alloy of claim 2 , wherein the carbon is provided in an amount of about 3.3 to about 3.9 weight percent.4. The nodular iron alloy of claim 3 , wherein the silicon is provided in an amount of about 1.9 to about 2.6 weight percent.5. The nodular iron alloy of claim 4 , further comprising about 0.03 to about 0.06 weight percent magnesium.6. The nodular iron alloy of claim 5 , further comprising tin in an amount not exceeding 0.01 weight percent.7. The nodular iron alloy of claim 6 , further comprising:chromium in an amount not exceeding 0.1 weight percent;phosphorus in an amount not exceeding 0.05 weight percent; andsulfur in an amount not exceeding 0.02 weight percent.8. The nodular iron alloy of claim 5 , wherein the nodular iron alloy has an ultimate tensile strength in the range of 550 MPa to 680 MPa as-cast.9. The nodular iron alloy of claim 8 , ...

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Номер записи: 31
21-04-2016 дата публикации

GRAY CAST IRON FOR CYLINDER LINER AND METHOD FOR MANUFACTURING CYLINDER LINER USING THE SAME

Номер: US20160108503A1
Автор: Nam Duk Hyun
Принадлежит:

A gray cast iron for a cylinder liner is provided that maintains fatigue strength and thermal shock property by adjusting component contents. The gray cast iron includes carbon (C) in an amount of about 3.2 to 3.7 weight % (wt %); silicon (Si) in an amount of about 2.0 to 2.8 wt %; manganese (Mn) in an amount of about 0.50 to 1.0 wt %; phosphorus (P) in an amount of about 0.20 wt % or less, and greater than about 0 wt %; sulfur (S) in an amount of about 0.10 wt % or less, and greater than about 0 wt %; chromium (Cr) in an amount of about 0.50 wt % or less, and greater than about 0 wt %; copper (Cu) in an amount of about 0.20 to 0.80 wt %; molybdenum (Mo) in an amount of about 0.10 to 0.40 wt %; and the balance of iron (Fe), based on the total weight of the gray cast iron. 1. A gray cast iron for a cylinder liner , comprising:carbon (C) in an amount of about 3.2 to 3.7 weight % (wt %) based on the total weight of the gray cast iron;silicon (Si) in an amount of about 2.0 to 2.8 wt % based on the total weight of the gray cast iron;manganese (Mn) in an amount of about 0.50 to 1.0 wt % based on the total weight of the gray cast iron;phosphorus (P) in an amount of about 0.20 wt % or less, and greater than about 0 wt % based on the total weight of the gray cast iron;sulfur (S) in an amount of about 0.10 wt % or less, and greater than about 0 wt % based on the total weight of the gray cast iron;chromium (Cr) in an amount of about 0.50 wt % or less, and greater than about 0 wt % based on the total weight of the gray cast iron;copper (Cu) in an amount of about 0.20 to 0.80 wt % based on the total weight of the gray cast iron;molybdenum (Mo) in an amount of about 0.10 to 0.40 wt % based on the total weight of the gray cast iron; andthe balance of iron (Fe), {'br': None, '0.8≦Cu+1.5Cr+1.2Mo≦1.5\u2003\u2003[Equation 1]'}, 'wherein the gray cast iron satisfies the following Equation 1,'}where Cu, Cr, and Mo respectively mean the contents in wt % of Cu, Cr and Mo components.2. The ...

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Номер записи: 32
09-06-2022 дата публикации

CENTRIFUGALLY CAST COMPOSITE ROLL FOR ROLLING AND METHOD OF MANUFACTURING THE SAME

Номер: US20220176431A1
Автор: ISHIKAWA Shinya, KAMIMIYADA Kazunori, Konno Yuji
Принадлежит: NIPPON STEEL ROLLS CORPORATION

There is provided a centrifugally cast composite roll for rolling having excellent wear resistance and surface deterioration resistance at levels of a high-speed steel cast iron roll and having rolling incident resistance at a level of a high alloy grain cast iron roll. Its outer layer includes chemical components by mass ratio: C: 1.5 to 3.5%; Si: 0.3 to 3.0%; Mn: 0.1 to 3.0%; Ni: 1.0 to 6.0%; Cr: 1.5 to 6.0%; Mo: 0.1 to 2.5%; V: 2.0 to 6.0%; Nb: 0.1 to 3.0%; B: 0.001 to 0.2%; N: 0.005 to 0.070%; and the balance being Fe and inevitable impurities, wherein: a chemical composition of the outer layer satisfies Formula (1) and has 5 to 30% of MC carbide by area ratio; an outer layer Shore hardness (A) of a roll surface satisfies Formula (2); and a residual stress (B) of the roll surface satisfies Formula (3), 1. A centrifugally cast composite roll for rolling having an outer layer ,the outer layer comprising chemical components by mass ratio:C: 1.5 to 3.5%;Si: 0.3 to 3.0%;Mn: 0.1 to 3.0%;Ni: 1.0 to 6.0%;Cr: 1.5 to 6.0%;Mo: 0.1 to 2.5%;V: 2.0 to 6.0%;Nb: 0.1 to 3.0%;B: 0.001 to 0.2%;N: 0.005 to 0.070%; andthe balance comprising Fe and inevitable impurities, wherein:{'sub': '3', 'a chemical composition of the outer layer satisfies following Formula (1) and has 5 to 30% of MC carbide by area ratio;'}an outer layer Shore hardness (A) of a roll surface satisfies following Formula (2); and [{'br': None, '2×Ni+0.5×Cr+Mo>10.0\u2003\u2003(1)'}, {'br': None, 'Hs75≤A≤Hs85\u2003\u2003(2)'}, {'br': None, '100 MPa≤B≤350 MPa\u2003\u2003(3).'}], 'a residual stress (B) of the roll surface satisfies following Formula (3),'}2. The centrifugally cast composite roll for rolling according to claim 1 , wherein Ti: 0.005 to 0.3%;', 'W: 0.01 to 2.0%;', 'Co: 0.01 to 2.0%; and', 'S: 0.3% or less., 'the outer layer further comprises one or more of chemical components by mass ratio3. A method of manufacturing the centrifugally cast composite roll for rolling according to claim 1 , whereinin a ...

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Номер записи: 33
26-04-2018 дата публикации

HIGH RIGID SPHEROIDAL GRAPHITE CAST IRON

Номер: US20180112294A1
Автор: KANBAYASHI Tadaaki, TOBITA Tomoyuki
Принадлежит:

A high rigid spheroidal graphite cast iron, comprising: more than 3.0% to less than 3.6% of C, 1.5 to 3.0% of Si, 1.0% or less of Mn, 1.0% or less of Cu, less than 0.03% of P, 0.02% to 0.07% of Mg, residual Fe and inevitable impurities, as represented by mass %, wherein a carbon equivalent (a CE value) calculated by the mathematical expression (1): CE=C %+Si %/3 in terms of C and Si contents is 3.6 to 4.3%, the Young's modulus is 170 GPa or more, the tensile strength is 550 MPa or more, and the impact value is 12 J/cmor more. 1. A high rigid spheroidal graphite cast iron , comprising:more than 3.0% to less than 3.6% of C, 1.5 to 3.0% of Si, 1.0% or less of Mn, 1.0% or less of Cu, less than 0.03% of P, 0.02% to 0.07% of Mg, residual Fe and inevitable impurities, as represented by mass %, wherein{'sup': '2', "a carbon equivalent (a CE value) calculated by the mathematical expression (1): CE=C %+Si %/3 in terms of C and Si contents is 3.6 to 4.3%, the Young's modulus is 170 GPa or more, the tensile strength is 550 MPa or more, and the impact value is 12 J/cmor more."}2. The high rigid spheroidal graphite cast iron according to claim 1 , wherein the total contents of Mn and Cu are 0.45 to 0.70% claim 1 , as represented by mass %.3. The high rigid spheroidal graphite cast iron according to claim 1 , a ratio (P/(Mn+Cu)) of the P content and the total contents of Mn and Cu is 0.050 or less claim 1 , as represented by mass %. The present invention relates to spheroidal graphite cast iron, and, more particularly, to high rigid spheroidal graphite cast iron suitably applied to vehicle parts such as an undercarriage including a knuckle, a suspension arm and a brake caliper, and engine parts including a crank shaft, a cam shaft and a piston ring.In order to improve fuel efficiency and to respond environmental issues, lightweight vehicle parts are demanded. A high rigid material used for the parts is also needed. A variety of materials are used for the vehicle parts. Cast iron ...

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Номер записи: 34
25-08-2022 дата публикации

Method for Producing a Brake Element, Brake Element

Номер: US20220267873A1
Автор: Bozovic Ilija, Englert Karl-Otto, Le Barzic Laurent, Linek Karl-Heinz, Raab Roland
Принадлежит:

A method is disclosed for producing a brake element, in particular a brake disk or brake drum, which has a friction portion and a fastening portion, wherein a blank for at least the friction portion is produced by a casting method from gray cast iron with lamellar graphite, wherein the blank is subjected to austenitizing at a predefined austenitizing temperature, and wherein the austenitized blank is subjected to austempering at a predefined austempering temperature. The friction portion and the fastening portion is produced in one piece, and that the fastening portion is produced with a wall thickness of at least 1.5 and at most 4.5 mm. 1. A method for producing a brake element which has a friction portion and a fastening portion , comprising:(a) producing a blank for at least the friction portion by a casting method from gray cast iron with lamellar graphite;(b) subjecting the blank to a first austenitizing process at a first predefined austenitizing temperature so as to produce an intermediate austenitized blank; and(c) subjecting the intermediate austenitized blank to a second austenitizing process at a second predefined austenitizing temperature so as to produce the brake element,wherein step (a) includes (i) producing the friction portion and the fastening portion to be configured as one piece, and (ii) producing the fastening portion with a wall thickness of at least 1.5 and at most 4.5 mm.2. The method according to claim 1 , wherein step (a) further includes producing the fastening portion with a wall thickness of at least 2 mm and at most 4 mm.3. The method according to claim 1 , wherein the first austenitizing process has a duration of between 30 minutes to 120 minutes.4. The method according to claim 1 , wherein the first predefined austenitizing temperature is between 790° C. and 915° C.5. The method according to claim 1 , wherein the second austenitizing process has a duration of 2 hours to 5 hours.6. The method according to claim 1 , wherein the second ...

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Номер записи: 35
25-04-2019 дата публикации

Method for Producing an Improved Ductile Iron Alloy with Pearlitic Matrix

Номер: US20190119795A1
Автор: Lagoon Colin, Lagoon Mathew
Принадлежит:

The invention relates to a method for producing ductile iron alloys and products thereof, and in particular ductile iron alloys with at least a partial pearlitic structure. The inventors have sought to develop an improved iron alloy for providing vehicle parts, in particular disc brake rotors. The method for producing a ductile iron alloy comprises the steps of: heating a steel composition in a furnace to produce a molten steel; transferring said molten steel to an inoculation ladle; inoculating said molten steel with an inoculant for a predetermined inoculation time to produce an inoculated molten steel; and pouring said inoculated molten steel into a mould to produce a ductile iron alloy with at least a partial pearlitic structure. 1. A method for producing a ductile iron alloy , comprising the steps of:i) heating a steel composition in a furnace to produce a molten steel;ii) transferring said molten steel to an inoculation ladle;iii) inoculating said molten steel with an inoculant for a predetermined inoculation time to produce an inoculated molten steel;iv) pouring said inoculated molten steel into a mould to produce a ductile iron alloy with at least a partial pearlitic structure.2. The method according to claim 1 , wherein said inoculant includes one or more of ferrosilicon claim 1 , calcium claim 1 , aluminium claim 1 , copper claim 1 , and molybdenum.3. The method according to claim 1 , wherein said inoculant is covered by a covering means to provide a controlled release of said inoculant in step (iii).4. The method according to claim 3 , wherein said controlled release occurs after substantially all of the molten steel is transferred into the inoculation ladle.5. The method according to claim 1 , wherein said partial pearlitic structure is about 30% to 50% of the structure.6. The method according to claim 1 , wherein said steel composition is provided by a combination of steel scrap claim 1 , pig iron claim 1 , and further additives claim 1 , wherein said ...

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Номер записи: 36
01-09-2022 дата публикации

SPHERICAL GRAPHITE CAST IRON SEMI-SOLID CASTING METHOD AND SEMI-SOLID CAST PRODUCT

Номер: US20220275467A1
Автор: ADACHI Mitsuru, Itamura Masayuki, ITOFUJI Haruki
Принадлежит:

The present invention provides a casting method and cast product of spherical graphite cast iron, in which, even with a small modulus, there is no chill, the spherical graphite in the tissue is further made ultrafine, the dispersion of the particle diameter is small, and the number of the particles is several times that of the conventional one in the as cast state where heat treatment is not carried out. 1. A semi-solidification casting method for casting a spheroidal graphite cast iron cast product comprises;a melting step in which a raw material made of cast iron is heated and melted to obtain a molten metal,a spheroidizing treatment step of spheroidizing the molten metal,an inoculation step of inoculating the molten metal, anda casting step of pouring the molten metal after inoculation from the pouring port, passing through the runner, and filling the product space through the gate,wherein the amount of nitrogen in the molten metal is adjusted so that the amount of nitrogen generated during melting of the casting is 0.9 ppm (mass) or less,the pouring being performed at a temperature between (liquidus temperature+10° C.) and (liquidus line temperature+40° C.), andthe molten metal poured from the pouring port is cooled in the runner and filled at the gate at a temperature within the solid-liquid coexistence temperature region.2. A semi-solidification casting method according to claim 1 , wherein the cooling rate of the molten metal from the pouring temperature to the liquidus temperature after the pouring is 20° C./sec or more.3. A semi-solidification casting method according to claim 1 , wherein a temperature in the solid-liquid coexistence temperature region is 1140 to 1170° C.4. A semi-solidification casting method according to claim 1 , wherein after the filling claim 1 , pressurization is performed.5. A semi-solidification casting method according to comprise claim 1 ,a step of heating a raw material to obtain a molten metal,a step of heating the molten metal ...

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Номер записи: 37
19-05-2016 дата публикации

SPHEROIDIZING TREATMENT METHOD FOR MOLTEN METAL OF SPHEROIDAL GRAPHITE CAST IRON

Номер: US20160138139A1
Автор: Fujimoto Ryosuke, HOMMA Shuhei, NIHEI Yuji, OZEKI Toshiaki, Yokoyama Takashi
Принадлежит:

A graphite spheroidizing agent containing: 30-80 wt % of Si; Mg; RE (rare earth element) which comprises Ce with a purity level of 80-100 wt % or La with a purity level of 80-100 wt %; Ca; and Al is used. The graphite spheroidizing agent is added so as to satisfy the conditions that an amount of RE equivalent to 0.001-0.009 wt % of the total weight of the molten metal, an amount of Ca equivalent to 0.001-0.02 wt % of the total weight of the molten metal, and an amount of Al equivalent to 0.001-0.02 wt % of the total weight of the molten metal are added to the molten metal, and that the molten metal contains 0.03-0.07 wt % of Mg after the graphite spheroidizing treatment. It is possible to suppress crystallization of chunky graphite in a thick section of spheroidal graphite cast iron and deterioration of mechanical properties, with a low cost. 1. A spheroidizing treatment method for spheroidizing graphite by addition of a graphite spheroidizing agent to a molten metal , wherein:the graphite spheroidizing agent contains: 30-80 wt % of Si; Mg; RE (rare earth element) which comprises Ce with a purity level of 80-100 wt % or La with a purity level of 80-100 wt %; Ca; and Al; andthe graphite spheroidizing agent is added so as to satisfy the conditions that an amount of RE equivalent to 0.001-0.009 wt % of the total weight of the molten metal, an amount of Ca equivalent to 0.001-0.02 wt % of the total weight of the molten metal, and an amount of Al equivalent to 0.001-0.02 wt % of the total weight of the molten metal are added to the molten metal, and that the molten metal contains 0.03-0.07 wt % of Mg after the graphite spheroidizing treatment.2. The spheroidizing treatment method according to claim 1 , wherein the graphite spheroidizing agent further contains S claim 1 , and the graphite spheroidizing agent is added such that an amount of RE equivalent to 0.002-0.008 wt % of the total weight of the molten metal is added claim 1 , and a ratio of the amount of RE added to ...

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Номер записи: 38
28-05-2015 дата публикации

NODULAR GRAPHITE CAST IRON AND METHOD FOR FABRICATING VANE USING THE SAME

Номер: US20150144230A1
Автор: PARK Jaebong
Принадлежит: LG ELECTRONICS INC.

A nodular graphite cast iron, a method for fabricating a vane for a rotary compressor using nodular graphite cast iron, and a vane for a rotary compressor using the same are provided. The nodular graphite cast iron includes 3.4 wt % to 3.9 wt % of carbon (C), 2.0 wt % to 3.0 wt % of silicon (Si), 0.3 wt % to 1.0 wt % of manganese (Mn), 0.1 wt % to 1.0 wt % of chromium (Cr), 0.04 wt % to 0.15 wt % of titanium (Ti), less than 0.08 w % of phosphorus (P), less than 0.025 wt % of sulphur (S), 0.03 wt % to 0.05 wt % of magnesium (Mg), 0.02 wt % to 0.04 wt % of rare earth resource, iron (Fe) and impurities as the remnants, and includes a bainite matrix structure, nodular graphite, and 15 vol % to 35 vol % of carbide. 1. A method for fabricating a vane for a compressor , the method comprising:melting a molten metal including 3.4 wt % to 3.9 wt % of carbon (C), 2.0 wt % to 3.0 wt % of silicon (Si), 0.3 wt % to 1.0 wt % of manganese (Mn), 0.1 wt % to 1.0 wt % of chromium (Cr), 0.04 wt % to 0.15 wt % of titanium (Ti), less than 0.08 w % of phosphorus (P), less than 0.025 wt % of sulphur (S), 0.03 wt % to 0.05 wt % of magnesium (Mg), 0.02 wt % to 0.04 wt % of rare earth resource, iron (Fe) and impurities as the remnants;injecting the molten metal into a mold in a casting operation;cooling the mold to obtain a semi-product including nodular graphite and 15 vol % to 35 vol % of carbide;grinding the cooled semi-product to have a predetermined shape in a grinding operation; andthermally treating the grinded product in a heat treatment to transform an austenite matrix structure into a bainite matrix structure.2. The method of claim 1 , further comprising: taking out the molten metal; andapplying a spheroidizing agent to the molten metal.3. The method of claim 1 , wherein the heat treatment comprises:heating the grinded semi-product to 880° C. to 950° C.;maintaining the semi-product at the temperature for 30 to 90 minutes;maintaining the semi-product in a liquid having a temperature ...

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Номер записи: 39
18-05-2017 дата публикации

MODIFICATION BODY

Номер: US20170136537A1
Автор: Menk Werner, Thomas Eric
Принадлежит:

The invention relates to a modification body for the production of spheroidal graphite cast iron and to the method for producing a cast part using the modification body according to the invention, and to the cast part itself. The modification body serves for the production of spheroidal graphite cast iron, in particular with a predominantly ferritic structure, containing a carrier material, preferably an iron-silicon alloy, wherein the modification body contains 7-16 weight percent of boron. 1. A modification body for the production of spheroidal graphite cast iron with a predominantly ferritic structure , the modification body comprising:a carrier material; andboron,wherein the boron content of the modification body is 7-16 percent weight.2. A method for production of a cast part made of spheroidal graphite cast iron , the method comprising:inserting, into a casting system prior to casting, at least one modification body comprising a carrier material and boron, wherein the boron content of the modification body is 7-16 percent weight.3. The method for the production of a cast part made of spheroidal graphite cast iron according to claim 2 , wherein the at least one modification body is inserted claim 2 , prior to casting claim 2 , into the casting system between a pouring cup and a filter.4. The method for the production of a cast part made of spheroidal graphite cast iron according to claim 2 , wherein at least one modification body is added to a melt prior to casting.5. The method for the production of a cast part made of spheroidal graphite cast iron according to claim 2 , wherein a number of the at least one modification body is chosen so as to achieve a boron content in the cast part of 0.002-0.008 percent weight.6. The method for the production of a cast part made of spheroidal graphite cast iron according to claim 2 , wherein a number of the at least one modification body is chosen so as to achieve a Brinell hardness of at most 170 HB.7. A cast part claim 2 ...

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Номер записи: 40
26-05-2016 дата публикации

METHOD FOR RECOVERING A COPPER SULFIDE CONCENTRATE FROM AN ORE CONTAINING AN IRON SULFIDE

Номер: US20160144381A1
Автор: Arnold Gerhard, Greet Christopher, Hamann Ingo, Hitchiner Alan
Принадлежит:

In a method for recovering a copper sulfide concentrate by froth flotation from an ore containing an iron sulfide, wet grinding of the ore with grinding media made of high chromium cast iron alloy having a chromium content of from 10 to 35% by weight is combined with an addition of hydrogen peroxide to the conditioned mineral pulp before or during flotation in order to improve concentrate grade and recovery of copper sulfides.

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Номер записи: 41
30-04-2020 дата публикации

High-strength nodular iron with good weldability and machinability

Номер: US20200131606A1
Автор: Dale A. Gerard, Daniel J. Wilson, David M. Zini, Huaxin Li, Jianghuai Yang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A nodular iron alloy and automotive components, such as differential and drive axle components, are provided. The nodular iron alloy may include iron, about 3.1-3.3 wt % carbon, about 2.7-4.3 wt % silicon, about 0.15-0.40 wt % manganese, about 0-0.10 wt % magnesium, about 0-0.2 wt % nickel, about 0-0.4 wt % copper, about 0-0.30 wt % chromium, about 0-0.03 wt % phosphorus, and about 0-0.02 wt % sulfur. The nodular iron alloy may have an ultimate tensile strength of at least 620 MPa as-cast. This alloy possesses favorable weldability to weld with steel components without substantial preheating or post heat treatment for a strong and tough weldment, and it has good machinability to facility comprehensive machining operations.

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Номер записи: 42
07-05-2020 дата публикации

WEAR RESISTANT MATERIAL AND SYSTEM AND METHOD OF CREATING A WEAR RESISTANT MATERIAL

Номер: US20200139431A1
Автор: Boddapati Srinivasarao
Принадлежит: ESCO GROUP LLC

A system and method of forming a wear resistant composite material includes placing a porous wear resistant filler material in a mold cavity and infiltrating the filler material with a matrix material by heating to a temperature sufficient to melt the matrix material, then cooling the assembly to form a wear resistant composite material. The system and method can be used to form the wear resistant composite material on the surface of a substrate, such as a part for excavating equipment or other mechanical part. One suitable matrix material may be any of a variety of ductile iron alloys. 165-. (canceled)66. A wear part for earth engaging equipment comprising:a metal substrate including a working portion for engaging earthen material, the working portion including a surface;an expendable sheet metal shell connected by welding or brazing to the substrate, a portion of the sheet metal shell being spaced from the substrate to define a cavity between the surface of the substrate and the shell; anda composite material substantially filling the cavity and forming a coating on at least a portion of the surface of the substrate, the composite coating comprising a porous wear resistant material infiltrated by a ductile iron matrix material, wherein the matrix material is principally ductile iron and bonds the coating to the working portion and the shell.67. The wear part of claim 66 , wherein the matrix material has a composition comprising claim 66 , in weight percent claim 66 , approximately 3.0-4.0% carbon claim 66 , approximately 1.8-2.8% silicon claim 66 , approximately 0.1-1.0% manganese claim 66 , approximately 0.01-0.03% sulfur claim 66 , and approximately 0.01-0.1% phosphorous claim 66 , with the balance being iron and incidental elements and impurities.68. The wear part of claim 67 , wherein the composition of the matrix material further comprises up to 37 wt. % nickel.69. The wear part of claim 67 , wherein the composition of the matrix material further comprises up ...

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Номер записи: 43
16-05-2019 дата публикации

CAST IRON MATERIAL

Номер: US20190144978A1
Автор: ADACHI Koshi, Hasegawa Tetsuo, Horigome Masami, Kanauchi Katsunori, KAWAI Kiyoyuki, KOIKE Ryo, Kurihara Kazue, MANABE Kazuyoshi, Oizumi Takashi, Sawada Mihoko, Suzuki Atsushi
Принадлежит:

Provided is a cast iron material from which excellent friction characteristics can be obtained. Provided is the cast iron material containing C and Fe as a composition, and further containing Cr as the composition in 1.0 to 3.5% in terms of mass %. The cast iron material is used in a sliding component sliding under an environment of lubricating oil to which an additive containing Mo as a constituent element, such as MoDTC, is added. Cr contained in the cast iron material promotes a decomposition reaction of the additive containing Mo added to the lubricating oil to form a film of molybdenum disulfide, the film having low friction. Thus, the fiction can be reduced. 1. A cast iron material , comprising:carbon (C) and iron (Fe) as a composition; andchromium (Cr) as the composition in 1.0 to 3.5% in terms of mass %; andincluding graphite as a structure, whereinthe cast iron material is used in a sliding component sliding under an environment of lubricating oil containing molybdenum (Mo) as an additive.2. The cast iron material according to claim 1 , comprising at least silicon (Si) from the group consisting of silicon (Si) claim 1 , copper (Cu) and nickel (Ni) as the composition claim 1 , wherein a content thereof is from 2 to 6.5% of Si claim 1 , from 0 to 1.5% of Cu claim 1 , and from 0 to 1.5% of Ni in terms of mass %.3. The cast iron material according to claim 1 , wherein Brinell hardness is from HB200 to HB380.4. The cast iron material according to claim 1 , wherein a film containing molybdenum disulfide is formed on a surface by sliding.5. The cast iron material according to claim 1 , wherein the cast iron material is used in a sliding portion of an engine part and a driving part. The invention relates to a cast iron material having excellent friction characteristics.The present application is based upon and claims the benefit of priority to Japanese Application No. 2017-221363, filed Nov. 16, 2017, the entire contents of which are incorporated herein by ...

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Номер записи: 44
31-05-2018 дата публикации

METHOD FOR TREATING MOLTEN CAST IRON

Номер: US20180148805A1
Автор: FUJIMOTO Ryousuke, HONMA Shuhei
Принадлежит: TOSHIBA KIKAI KABUSHIKI KAISHA

A method for treating molten cast iron includes, performing an inoculation treatment to the molten cast iron, with the use of an inoculant containing: 15 to 80 wt % Si; either 80 to 100 wt % purity La or 80 to 100 wt % purity Ce as RE; Ca; Al; and the balance Fe with inevitable impurities, by adding the inoculant to the molten cast iron such that: the addition amount of La or Ce relative to the molten cast iron is 0.001 to 0.009 wt %; the addition amount of Ca relative to the molten cast iron is 0.001 to 0.02 wt %; and the addition amount of Al relative to the molten cast iron is 0.001 to 0.02 wt %. 1. A method for treating molten cast iron including , performing an inoculation treatment to the molten cast iron , with the use of an inoculant containing: 15 to 80 wt % Si; either 80 to 100 wt % purity La or 80 to 100 wt % purity Ce as RE; Ca; Al; and the balance Fe with inevitable impurities , by adding the inoculant to the molten cast iron such that: the addition amount of La or Ce relative to the molten cast iron is 0.001 to 0.009 wt %; the addition amount of Ca relative to the molten cast iron is 0.001 to 0.02 wt %; and the addition amount of Al relative to the molten cast iron is 0.001 to 0.02 wt %.2. The method for treating molten cast iron according to claim 1 , wherein claim 1 , in the inoculant claim 1 , the content of the Si is 30 to 80 wt % claim 1 , the content of said 80 to 100 wt % purity La or said 80 to 100 wt % purity Ce is 0.1 to 0.6 wt % claim 1 , the content of the Ca is 0.1 to 1.3 wt % claim 1 , and the content of the Al is 0.1 to 2.0 wt %.3. The method for treating molten cast iron according to claim 1 , wherein in the inoculant claim 1 , the content of the Si is 30 to 80 wt/% claim 1 , the content of said 80 to 100 wt % purity La or said 80 to 100 wt % purity Ce is 0.3 to 1.8 wt % claim 1 , the content of the Ca is 0.1 to 6.0 wt % claim 1 , and the content of the Al is 0.1 to 6.0 wt %.4. The method for treating molten cast iron according to claim ...

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Номер записи: 45
31-05-2018 дата публикации

ALLOY CAST IRON HAVING IMPROVED WEAR RESISTANCE, AND PISTON RING COMPRISING SAME

Номер: US20180148808A1
Автор: HAN Geum Tai
Принадлежит:

The present invention relates to an alloy cast iron, and a piston ring containing the same, the alloy cast iron including: a pearlite matrix; and a graphite structure and a steadite-type eutectic structure which are precipitated in the pearlite matrix, wherein the steadite-type eutectic structure includes at least one element selected from boron (B) and vanadium (V), at least one element selected from chromium (Cr) and molybdenum (Mo), and copper (Cu). 1. An alloy cast iron comprising:a pearlite matrix; anda graphite structure and a steadite-type eutectic structure which are precipitated in the pearlite matrix,wherein the steadite-type eutectic structure includes at least one element selected from boron (B) and vanadium (V), at least one element selected from chromium (Cr) and molybdenum (Mo), and copper (Cu).2. The alloy cast iron of claim 1 , wherein in a cross-sectional area of the alloy cast iron claim 1 , a cross-sectional area ratio of the pearlite matrix claim 1 , the graphite structure claim 1 , and the steadite-type eutectic structure is 65 to 85:10 to 30:4 to 7.3. The alloy cast iron of claim 1 , wherein the steadite-type eutectic structure further includes one or two or more selected from phosphorus (P) claim 1 , carbon (C) claim 1 , silicon (Si) claim 1 , manganese (Mn) claim 1 , magnesium (Mg) claim 1 , sulfur (S) claim 1 , nickel (Ni) claim 1 , and tin (Sn).4. The alloy cast iron of claim 3 , wherein it comprises 0.02 to 0.5 wt % of at least one element selected from boron (B) and vanadium (V) claim 3 , 0.1 to 1.2 wt % of at least one element selected from chromium (Cr) and molybdenum (Mo) claim 3 , 0.3 to 1 wt % of copper (Cu) claim 3 , 0.02 to 0.03 wt % of phosphorus (P) claim 3 , 3.2 to 3.8 wt % of carbon (C) claim 3 , 1.8 to 2.8 wt % of silicon (Si) claim 3 , 0.2 to 1 wt % of manganese (Mn) claim 3 , 0.005 to 0.05 wt % of magnesium (Mg) claim 3 , 0.05 wt % or less of sulfur (S) claim 3 , 0 to 0.75 wt % of nickel (Ni) claim 3 , 0 to 0.1 wt % of tin ...

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Номер записи: 46
09-06-2016 дата публикации

SPHEROIDAL GRAPHITE CAST IRON

Номер: US20160160325A1
Автор: Mito Kazushige, SAITO Naoto
Принадлежит:

A spheroidal graphite cast iron comprising: C: 3.3 to 4.0 mass %, Si: 2.1 to 2.7 mass %, Mn: 0.20 to 0.50 mass %, S: 0.005 to 0.030 mass %, Cu: 0.20 to 0.50 mass %, Mg: 0.03 to 0.06 mass % and the balance: Fe and inevitable impurities, wherein a tensile strength is 550 MPa or more, and an elongation is 12% or more. 1. A spheroidal graphite cast iron comprising: C: 3.3 to 4.0 mass % , Si: 2.1 to 2.4 mass % , Mn: 0.20 to 0.50 mass % , S: 0.005 to 0.030 mass % , Cu: 0.20 to 0.50 mass % , Mg: 0.03 to 0.06 mass % , Mn and Cu: 0.45 to 0.60 mass % in total and the balance: Fe and inevitable impurities ,{'sup': '2', 'wherein a tensile strength is 550 MPa or more, and an elongation is 12% or more, a ratio of the content of Si by mass % and the total contents of Mn and Cu by mass % (Si/(Mn+Cu)) is 4.0 to 5.5, the pearlite ratio is 30 to 55%, and an impact value at normal temperature and −30° C. is 10 J/cmor more.'}23-. (canceled)4. The spheroidal graphite cast iron according to claim 1 , wherein a graphite nodule count is 300/mmor more claim 1 , and an average grain size of graphite is 20 μm or less.5. (canceled)6. The spheroidal graphite cast iron according claim 1 , wherein a percentage brittle fracture of an impact fracture surface at 0° C. is 50% or less.714-. (canceled)15. The spheroidal graphite cast iron according claim 4 , wherein a percentage brittle fracture of an impact fracture surface at 0° C. is 50% or less.16. (canceled) The present invention relates to spheroidal graphite cast iron. In particular, the present invention relates to spheroidal graphite cast iron suitably applied to undercarriage and engine parts of an automobile.In order to improve a fuel efficiency of an automobile or the like, it is increasingly needed to reduce weights of vehicle parts. Examples of reducing the weights of the vehicle parts include that spheroidal graphite cast iron used in the related art is replaced with a light alloy such as an aluminum alloy and a magnesium alloy having a ...

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Номер записи: 47
08-06-2017 дата публикации

SEAL RINGS COMPRISING CHROMIUM AND BORON CAST IRON

Номер: US20170159148A1
Автор: BARNES CHRISTOPHER ALLEN, Pickert Thomas Edward
Принадлежит: CATERPILLAR INC.

A seal ring comprising a chromium and boron containing cast iron alloy composition is disclosed. The cast iron alloy composition comprises each of boron, chromium and silicon in the following amounts: boron up to 1.5 wt. %; chromium from 8 to 14 wt. %; and silicon up to 3.0 wt. %. The seal ring may be produced by melting a cast iron composition further comprising the foregoing alloying elements; pouring the melted alloy into a mold; cooling the melted alloy to form a cast iron seal ring; and separating the cast iron seal ring from the mold. The seal ring is typically used in the undercarriage of earth-working machines, such as in the drive train or power train of such machines. 1. A seal ring , comprising a body having a cast iron composition comprising B , Cr , and Si in the following amounts:B: up to 1.5 wt. %;Cr: 8 to 14 wt. %; andSi: up to 3 wt. %.2. The seal ring of claim 1 , wherein B is present in an amount ranging from 0.5 to 1.0 wt. %.3. The seal ring of claim 1 , wherein Cr is present in an amount ranging from 10 to 14 wt. %.4. The seal ring of claim 1 , wherein Si is present in an amount ranging from 1.5 to 2.4 wt. %.5. The seal ring of claim 1 , wherein the cast iron composition further includes:C: 2.8 to 3.6 wt. %;Mn: 0.40 to 1.0 wt. %;Ni: 3.0 to 5.0 wt. %;V: up to 1.0 wt. %;Mo: up to 0.80 wt. %;P: up to 0.08 wt. %;S: up to 0.2 wt. %; andthe balance comprising Fe and incidental impurities.6. The seal ring of claim 1 , wherein the cast iron composition has a microstructure of less than 50 wt. % carbide.7. The seal ring of claim 1 , wherein the cast iron composition has a microstructure comprising more than 50 wt. % of martensite claim 1 , austenite and combinations thereof.8. The seal ring of claim 1 , wherein at least a surface of the cast iron composition has a Rockwell C hardness ranging from 55 to 70.9. The seal ring of claim 1 , wherein the cast iron composition exhibits a pressure velocity ranging from 300-1000 KN/mm-mm/min.10. The seal ring of ...

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Номер записи: 48
04-09-2014 дата публикации

Centrifugally cast composite roll and its production method

Номер: US20140248511A1
Автор: Nozomu Oda, Takayuki Segawa, Yasunori Nozaki
Принадлежит: Hitachi Metals Ltd

A centrifugally cast composite roll comprising an outer layer made of cast iron having a chemical composition comprising, by mass, 2.7-3.5% of C, 1.5-2.5% of Si, 0.4-1.0% of Mn, 3.7-5.1% of Ni, 0.8-2.2% of Cr, 1.5-4.5% of Mo, 2.0-4.5% of V, and 0.5-2.0% of Nb, the balance being Fe and inevitable impurities, a mass ratio of Nb/V being 0.18-0.65, and a mass ratio of Mo/V being 0.7-2.5, and a structure comprising, by area, 15-45% of a cementite phase and 1-10% of a graphite phase, and an inner layer made of cast iron having excellent mechanical strength and metallurgically bonded to the outer layer; a usable region of the outer layer as deep as 10 mm or more from the surface containing substantially no speck-like-segregated dendrites of bainite and/or martensite having diameters of 1.5 mm or more.

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Номер записи: 49
21-05-2020 дата публикации

POWDER METAL MATERIAL FOR WEAR AND TEMPERATURE RESISTANCE APPLICATIONS

Номер: US20200156156A1
Автор: "LEsperance Gilles", Beaulieu Philippe, Christopherson, Farthing Leslie John, JR. Denis B., Schoenwetter Todd
Принадлежит:

A powder metal composition for high wear and temperature applications is made by atomizing a melted iron based alloy including 3.0 to 7.0 wt. % carbon; 10.0 to 25.0 wt. % chromium; 1.0 to 5.0 wt. % tungsten; 3.5 to 7.0 wt. % vanadium; 1.0 to 5.0 wt. % molybdenum; not greater than 0.5 wt. % oxygen; and at least 40.0 wt. % iron. The high carbon content reduces the solubility of oxygen in the melt and thus lowers the oxygen content to a level below which would cause the carbide-forming elements to oxidize during atomization. The powder metal composition includes metal carbides in an amount of at least 15 vol. %. The microhardness of the powder metal composition increases with increasing amounts of carbon and is typically about 800 to 1,500 Hv50. 1. A powder metal material , comprising:a plurality of particles, the particles including 3.0 to 7.0 wt. % carbon, 10.0 to 25.0 wt. % chromium, 1.0 to 5.0 wt. % tungsten, 3.5 to 7.0 wt. % vanadium, 1.0 to 5.0 wt. % molybdenum, not greater than 0.5 wt. % oxygen, and at least 40.0 wt. % iron, based on the total weight of the particles;the particles being atomized; andthe particles including metal carbides in an amount of at least 15 vol. %, based on the total volume of the particles.2. The powder metal material according to claim 1 , wherein the metal carbides are present in an amount of 40.0 to 60.0 vol. % claim 1 , based on the total volume of the particles.3. The powder metal material according to claim 2 , wherein the metal carbides are present in an amount of 47.0 to 52.0 vol % claim 2 , based on the total volume of the particles.4. The powder metal material according to claim 1 , wherein the metal carbides include at least one of MC claim 1 , MC claim 1 , MC claim 1 , MC claim 1 , MC claim 1 , and MC claim 1 , wherein M is at least one metal atom claim 1 , such as Fe claim 1 , Cr claim 1 , V claim 1 , Mo claim 1 , and/or W claim 1 , and C is carbon.5. The powder metal material according to claim 4 , wherein the metal ...

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Номер записи: 50
18-09-2014 дата публикации

METHOD FOR PRODUCING SPHEROIDAL GRAPHITE CAST IRON AND VEHICLE COMPONENT USING SAID SPHEROIDAL GRAPHITE CAST IRON

Номер: US20140271330A1
Автор: Baba Tsukasa, Horiya Takao, Idei Hiroshi, Sato Takashi, Tokiyama Takuya
Принадлежит:

A method for producing spheroidal graphite cast iron having a specific final composition includes: subjecting a molten iron to a spheroidization treatment using a spheroidizing agent of an Fe—Si—Mg—Ca-based alloy containing no rare earth element; conducting an inoculation treatment using a first Fe—Si-based inoculant; and conducting a pouring inoculation treatment with a given amount of a second Fe—Si-based inoculant containing 45-75% of Si, 1-3% of Ca, and 15 ppm or less of Ba. 1. A method for producing spheroidal graphite cast iron containing substantially no rare-earth element , the method comprising:(a) a step of subjecting, in a ladle, a molten iron to a spheroidization treatment using a spheroidizing agent of an Fe—Si—Mg-based alloy containing no rare-earth element or Fe—Si—Mg—Ca-based alloy containing no rare-earth element;(b) a step of conducting an inoculation treatment using a first Fe—Si-based inoculant, either simultaneously with the step (a) or after the step (a); and(c) a step of adding a second Fe—Si-based inoculant to the molten iron in an amount of 0.20 to 0.40% in terms of % by mass after the step (b) to conduct a pouring inoculation treatment, the second Fe—Si-based inoculant containing, in terms of % by mass, 45 to 75% of Si, 1 to 3% of Ca, and 15 ppm or less of Ba,wherein the spheroidal graphite cast iron to be obtained has a composition which contains, in terms of % by mass, 3.0 to 4.5% of C, 3.0 to 4.5% of Si, 0.2 to 0.4% of Mn, 0.006 to 0.020% of S, 0.08 to 0.30% of Cu, 0.020 to 0.040% of Sn, and 0.015 to 0.050% of Mg, with the remainder being Fe and unavoidable impurities.2. The method for producing spheroidal graphite cast iron according to claim 1 , wherein the molten iron has a composition which contains claim 1 , in terms of % by mass claim 1 , 3.0 to 4.5% of C claim 1 , 2.0 to 3.0% of Si claim 1 , 0.2 to 0.4 of Mn claim 1 , 0.006 to 0.020% of S claim 1 , 0.08 to 0.30% of Cu claim 1 , and 0.020 to 0.040% of Sn claim 1 , with the ...

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Номер записи: 51
13-06-2019 дата публикации

NEEDLE-SHAPED CYLINDER LINER AND PREPARATION METHOD THEREFOR, AND COATING LIQUID FOR PREPARING NEEDLE-SHAPED CYLINDER LINER

Номер: US20190176219A1
Автор: DANG Zengjun, HOU Qifei, Liu Zhijun, Wang Yong, XUE Delong
Принадлежит: ZYNP CORPORATION

A coating liquid for preparing a needle-shaped cylinder liner, comprising the following components: 0.05-0.4 parts of an anionic surfactant; 0.05-0.5 parts of tannic acid; 0.15-0.7 parts of caustic soda; 22-38 parts of diatomite; 3-10 parts of montmorillonite; and 62-75 parts of water. A method for preparing a needle-shaped cylinder liner comprises spraying a coating liquid for preparing the needle-shaped cylinder liner onto the inner wall of a hollow cylindrical mould, and drying the coating liquid to obtain a mould with a coating attached to the surface of the inner wall; adding an inoculated iron liquid into the rotary mould, and cooling and demoulding to obtain a cylinder liner blank; and subjecting the blank to outer surface cleaning and forming machining to obtain the needle-shaped cylinder liner. 2. The coating solution according to claim 1 , wherein the anionic surfactant comprises one or more selected from the group consisting of sodium dodecyl benzene sulfonate claim 1 , triethanolamine dodecyl benzene sulfonate claim 1 , surfactant AS and ammonium dodecyl sulfate.3. The coating solution according to claim 1 , wherein the diatomaceous earth has a permeability of 2 to 3.4. The coating solution according to claim 1 , wherein the diatomaceous earth has a bulk density of 0.33 to 0.65 g/cm.5. The coating solution according to claim 1 , wherein the diatomaceous earth has a particle size of 100 to 800 mesh.6. The coating solution according to claim 1 , wherein the montmorillonite has a density of 2.0 to 2.7 g/cm.7. The coating solution according to claim 1 , wherein the montmorillonite has an expansion ratio of 30 to 50.8. The coating solution according to claim 1 , wherein the montmorillonite has a particle size of 0.2 to 1 μm.10. A method for producing a needle-shaped cylinder liner claim 1 , comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a) spraying the coating solution according to into an inner wall of a hollow cylindrical mold ...

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Номер записи: 52
13-06-2019 дата публикации

HIGH-STRENGTH GRAY CAST IRON

Номер: US20190177821A1
Автор: PARK Hun Young
Принадлежит:

Disclosed herein is a gray cast iron having high strength and reduced casting defects. The high-strength gray cast iron may include: an amount of about 3.10 to 3.50 wt % of carbon (C), an amount of about 2.10 to 2.40 wt % of silicon (Si), an amount of about 0.50 to 0.80 wt % of manganese (Mn), an amount less than or equal to about 0.10 wt % (not including 0%) of phosphorus (P), an amount less than or equal to about 0.10 wt % (not including 0%) of sulfur (S), an amount of about 0.25 to 0.45 wt % of chromium (Cr), an amount of about 1.00 to 1.40 wt % of copper (Cu), an amount less than or equal to about 0.20 wt % (not including 0%) of nickel (Ni), and a balance of iron (Fe), all the wt % are based on the total weight of the gray cast iron. In particular, the gray cast iron may include a carbon equivalent (CEQ) of about 3.95 to 4.1% calculated by the Equation 1. 1. A gray cast iron , comprising:an amount of about 3.10 to 3.50 wt % of carbon (C),an amount of about 2.10 to 2.40 wt % of silicon (Si),an amount of about 0.50 to 0.80 wt % of manganese (Mn),an amount of less than or equal to about 0.10 wt % (not including 0%) of phosphorous (P),an amount of less than or equal to about 0.10 wt % (not including 0%) of sulfur (S),an amount of about 0.25 to 0.45 wt % of chromium (Cr),an amount of about 1.00 to 1.40 wt % of copper (Cu),an amount of less than or equal to about 0.20 wt % (not including 0%) of nickel (Ni), anda balance of iron (Fe),all the wt % are based on the total weight of the gray cast iron, {'br': None, 'Carbon equivalent (CEQ)=C+⅓(Si+P),\u2003\u2003[Equation 1]'}, 'wherein the gray cast iron has a carbon equivalent (CEQ) of about 3.95 to 4.1% calculated by the following equation 1where each of C, Si, and Pin the Equation 1 represents an element content (wt %).2. The gray cast iron according to claim 1 , further comprising an amount of less than or equal to about 0.10 wt % of molybdenum (Mo).3. The gray cast iron according to claim 1 , wherein the gray cast ...

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Номер записи: 53
20-06-2019 дата публикации

Erosion And Corrosion Resistant White Cast Irons

Номер: US20190185975A1
Автор: Dolman Kevin Francis, Lucey Timothy Justin
Принадлежит:

A casting of a hypereutectic white iron that, in an as-cast form of the casting, has a microstructure that includes a ferrous matrix that contains 12-20 wt. % chromium in solution in the matrix, eutectic chromium carbides dispersed in the matrix, primary chromium carbides dispersed in the matrix, and optionally secondary carbides dispersed in the matrix. The eutectic carbides are 15-25 vol. % of the casting and the primary carbides are 25-35 vol. % of the casting. When present, the secondary carbides are up to 6 vol. % of the casting. 1. A casting of a hypereutectic white iron that , in an as-cast form of the casting , has a microstructure that includes a ferrous matrix that contains 12-20 wt. % chromium in solution in the matrix , eutectic chromium carbides dispersed in the matrix , primary chromium carbides dispersed in the matrix , and optionally secondary carbides dispersed in the matrix , where the eutectic carbides are 15-25 vol. % of the casting , the primary carbides are 25-35 vol. % of the casting , and when present the secondary carbides are up to 6 vol. % of the casting.2. The casting defined in wherein the weight ratio of chromium and carbon is greater than 7:1 and less than 9.25:1.3. The casting defined in wherein the eutectic carbides claim 1 , the primary carbides claim 1 , and the secondary carbides are MCcarbides (where “M” comprises Cr claim 1 , Fe claim 1 , and Mn).4. The casting defined in wherein the eutectic (Cr claim 3 ,Fe claim 3 ,Mn)Ccarbides and the primary (Cr claim 3 ,Fe claim 3 ,Mn)Ccarbides each comprise: Cr: 50-70 wt. % claim 3 , C: 8.5-8.9 wt. % claim 3 , and Mn: 0.5-5.0 wt. %.5. (canceled)6. The casting defined wherein the ferrous matrix comprises: Cr: 12-20 wt. % claim 1 , C: 0.2-1.5 wt. % claim 1 , and Mn: 1.0-5.0 wt. %7. The casting defined in wherein the ferrous matrix comprises: Cr: 14-16 wt. % claim 1 , C: 0.3-1.2 wt. % claim 1 , and Mn: 1.0-5.0 wt. %.8. The casting defined in wherein the ferrous matrix comprises 13-17 wt. % Cr ...

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Номер записи: 54
11-06-2020 дата публикации

METHOD OF MANUFACTURING CAM PIECE FOR CONTINUOUSLY VARIABLE VALVE DURATION AND CAM PIECE MANUFACTURED THEREFROM

Номер: US20200181726A1
Автор: PARK Sung-Hwan
Принадлежит:

A method of manufacturing a cam piece for a continuously variable valve duration and a cam piece manufactured therefrom, and more particularly, to material and heat treatment conditions of a cam piece, may include manufacturing a cam piece by casting; heating the cam piece; maintaining a heating temperature; and salt-bathing the cam piece, in which the cam piece includes 3.2 to 4.2 wt % of carbon (C), 2.2 to 3.4 wt % of silicon (Si), and the balance iron (Fe), and may have a carbon equivalent value of 4.4 to 4.6. 1. A method of manufacturing a cam piece for a continuously variable valve duration , the method comprising:manufacturing the cam piece by casting;heating the cam piece;maintaining a heating temperature; andsalt-bathing the cam piece,wherein the cam piece comprises 3.2 to 4.2 wt % of carbon (C), 2.2 to 3.4 wt % of silicon (Si), and balance iron (Fe), and has a carbon equivalent value of 4.4 to 4.6.2. The method of claim 1 , wherein the cam piece further comprises nickel (Ni) claim 1 , copper (Cu) and molybdenum (Mo) and a total content of nickel (Ni) claim 1 , copper (Cu) and molybdenum (Mo) is 1.9 to 2.1 wt %.3. The method of claim 2 , wherein a content of nickel (Ni) is 1.0 wt % or less.4. The method of claim 2 , wherein a content of copper (Cu) is 0.5 to 1.0 wt %.5. The method of claim 2 , wherein a content of molybdenum (Mo) is 0.5 to 1.0 wt %.6. The method of claim 2 , wherein the cam piece further comprises 0.3 wt % or less of chromium (Cr).7. The method of claim 1 , wherein in the maintaining of the heating temperature claim 1 , the heating temperature is 890 to 930° C. claim 1 , and a heating holding time is 70 to 110 minutes.8. The method of claim 1 , wherein in the salt-bathing of the cam piece claim 1 , a salt bath temperature is 270 to 290° C. claim 1 , and a salt bath holding time is 50 to 70 minutes.9. A cam piece for a continuously variable valve duration claim 1 , comprising 3.2 to 4.2 wt % of carbon (C) claim 1 , 2.2 to 3.4 wt % of silicon ...

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Номер записи: 55
14-07-2016 дата публикации

Chromium metal powder

Номер: US20160199910A1
Автор: Lorenz Sigl, Michael O&#39;sullivan
Принадлежит: Plansee Se

A metal powder has a chromium content of at least 90 Ma %, a nanohardness according to EN ISO 14577-1 of ≦4 GPa and/or a green strength measured according to ASTM B312-09 of at least 7 MPa at a compression pressure of 550 MPa.

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Номер записи: 56
14-07-2016 дата публикации

MOLTEN ALUMINUM RESISTANT ALLOYS

Номер: US20160201170A1
Автор: Cheney Justin Lee, Vecchio James, Vecchio Kenneth
Принадлежит:

Embodiments of methods for protection a material from a reaction from molten aluminum. In some embodiments, a coating can be applied over a substrate which has significantly less of a reaction rate with molten aluminum, thus preventing damage or chemical changes to the substrate. The coating alloy can be formed from cast iron in combination with niobium in some embodiments. 1. A method of protecting a component from molten aluminum reaction , the method comprising:coating a component formed from a base material with an alloy;wherein the alloy has a reaction level to molten aluminum of less than 38 atomic %, the reaction level being calculated by determining a minimum alloy content in a pseudo binary alloy/aluminum phase diagram where the liquidus temperature is at or above 1500K; andwherein the alloy has a minimum concentration of highly resistant secondary phases of 5 mole %.2. The method of claim 1 , wherein the alloy is a Nb—Zr alloy with 30-60 wt. % Zr.3. The method of claim 1 , wherein the alloy has a reaction rate to molten aluminum less than 50% than that of the base material.4. The method of claim 1 , wherein the alloy is a pseudo alloy of grey cast iron and niobium according to the formula: (grey cast iron)Nbwith x ranging from 10 to 30 wt. %.5. The method of claim 1 , wherein the alloy is a pseudo alloy of grey cast iron and niobium according to the formula: (grey cast iron)Nbwith x ranging from 0 to 10 wt. %.6. The method of claim 1 , wherein the alloy has a reaction rate less than 10% than that of the base material.7. The method of claim 1 , wherein the alloy has a reaction rate less than 5% than that of the base material.8. An alloy resistant to molten aluminum claim 1 , the alloy comprising:two or more elements;a reaction level of less than 38 atom %, wherein the reaction level is calculated by determining a minimum alloy content in a pseudo binary alloy/aluminum phase diagram where the liquidus temperature is at or above 1500K; anda minimum ...

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Номер записи: 57
25-09-2014 дата публикации

Roll surface layer material for hot rolling with excellent fatigue resistance produced by centrifugal casting, and composite roll for hot rolling produced through centrifugal casting

Номер: US20140287898A1
Автор: Hiromitsu Sibata, Kenji Ichino, Tetsuo Mochida
Принадлежит: JFE Steel Corp

There is provided a roll surface layer material including a roll surface layer with excellent fatigue resistance. The roll surface layer material has a composition including, on a mass % basis, C: 2.3% to 2.9%, Si: 0.2% to 0.8%, Mn: 0.2% to 1.0%, Cr: 5.0% to 7.5%, Mo: 4.4% to 6.5%, V: 5.3% to 7.0%, Nb: 0.6% to 1.5%, and Co: 0.1% to 4.0% so as to satisfy 14.0≦(Mo+1.7V)≦17.0 (where Mo represents a content (mass %) of Mo and V represents a content (mass %) of V) and further including Al: 0.001% to 0.03% and/or REM: 0.001% to 0.03%, wherein a carbide is contained at an area fraction of 13% to 40%. A composite roll obtained by integrally welding a shaft member to the roll surface layer member is treated as a centrifugal cast roll that includes a surface layer with excellent fatigue resistance.

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Номер записи: 58
02-10-2014 дата публикации

CAST IRON ALLOY AND EXHAUST COMPONENT MANUFACTURED THEREBY

Номер: US20140290230A1
Автор: Ekstrom Madeleine, MORE John, Wilberfors Fredrik
Принадлежит: SCANIA CV AB

The invention relates to a cast-iron alloy comprising (in wt %) C: 3.0-3.5 Si: 4.1-4.8 Mn: ≦0.4 Mg: 0.02-0.08 Cr: 0.4-1.0 Cu: ≦0.15 Mo: 0.8-1.2 P: <0.05 S: <0.015 the remainder comprising Fe and any impurities. The invention relates also to an exhaust-conducting component for truck engines which comprises the alloy according to the invention. 2. The cast-iron alloy according to claim 1 , which in solidified state has a structure of spheroidal graphite nodules in a mainly ferritic matrix.3. The cast-iron alloy according to claim 1 , wherein the C content is 3.0-3.3 wt %.4. The cast-iron alloy according to claim 1 , wherein the Si content is 4.2-4.4 wt %.5. The cast-iron alloy according to claim 1 , wherein the Cr content is 0.5-1.0 wt %.6. The cast-iron alloy according to claim 1 , wherein the Cr content is 0.6-1.0 wt %.7. The cast-iron alloy according to claim 1 , wherein the Cr content is 0.60-0.75 wt %.8. The cast-iron alloy according to claim 1 , wherein the Mo content is 0.8-1.0 wt %.9. An exhaust-conducting component for truck engines claim 1 , comprising a cast-iron alloy according to .10. An exhaust-conducting component for truck engines according to claim 9 , wherein the exhaust-conducting component is in the form of a turbo manifold claim 9 , an exhaust manifold or a turbine housing for a turbo. The present invention relates to a cast-iron alloy according to the preamble of claim . The invention relates also to an exhaust-conducting component intended for a truck engine and comprising the cast-iron alloy according to the invention.Components used in truck engines to conduct exhaust gases away from the cylinders are subject cyclically to substantial thermal and mechanical loads during operation of the engine. Examples of such components comprise turbo manifolds, exhaust manifolds and turbine housings for turbos. The components are also subject to corrosion in the oxidising environment caused by the hot exhaust gases ejected from the cylinders. The corrosion ...

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Номер записи: 59
27-06-2019 дата публикации

Self-Lubricating Rolling Bearing and Preparation Method Therefor

Номер: US20190194771A1
Автор: Baojian Liu, Guojun Yan, Yang Xu
Принадлежит: Xian University of Technology

A self-lubricating rolling bearing is provided. The chemical compositions in the inner rings and the outer rings of bearing are 3.4-3.7% C, 2.7-2.9% Si, 0.3-0.5% Mn, 0.3-0.5% Cr, ≤0.05% S, ≤0.05% P, 0.03-0.045% Residual Mg, and the remainder Fe. The total percent of the chemical compositions is 100%. The material for the inner and outer rings of the rolling bearing introduced in the invention is austempered ductile iron (ADI). In the microstructure of ADI, the diameter of the graphite nodules is less than 0.02 mm, the number of graphite spheres per square millimeter is more than 400, and the microstructure of the metal matrix in the ADI can be showed clearly only when it is observed on the microscope with a magnification more than 500. Eventually, the self-lubricating rolling bearings are made from the ADI.

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Номер записи: 60
27-07-2017 дата публикации

CYLINDER LINER AND METHOD OF FORMING THE SAME

Номер: US20170211507A1
Автор: Qin Xiaocai
Принадлежит:

A high strength cast iron material for application in heavy duty diesel engines with Pa peak cylinder pressure greater than 240 bar is disclosed, the material a ductile material austempered to get a ausferrite matrix structure with higher mechanical properties than conventional cast iron materials available by using a designed low cost alloying cast material with heat treatment. Furthermore, the cylinder liner may be formed using novel heat treatment and/or fine honing processes to improve the properties thereof. 1. A cylinder liner comprising:a first portion including a first graphite morphology in a first matrix including iron; anda second portion including a second graphite morphology in a second matrix including iron, the first graphite morphology different from the second graphite morphology.2. The cylinder liner of claim 1 , wherein the first matrix and the second matrix are substantially the same.3. The cylinder liner of claim 1 , wherein the first matrix and the second matrix are different.4. The cylinder liner of claim 1 , wherein the first portion includes an inner surface of the cylinder liner.5. The cylinder liner of claim 1 , wherein the second portion includes an outer surface of the cylinder liner.6. The cylinder liner of claim 1 , wherein the first portion includes compact graphite iron.7. The cylinder liner of claim 1 , wherein the second portion includes austempered ductile iron.8. The cylinder liner of claim 1 , wherein one of the first portion and the second portion includes between about 3.55 wt % and about 3.65 wt % carbon.9. The cylinder liner of claim 1 , wherein one of the first portion and the second portion includes between about 0.005 wt % and about 0.06 wt % magnesium.1. cylinder liner of claim 1 , wherein one of the first portion and the second portion includes at least four members of a group consisting of: (a) between about 3.55 wt % and about 3.65 wt % C; (b) between about 2.30 wt % and about 2.40 wt % silicon; (c) between about 0.45 ...

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Номер записи: 61
26-07-2018 дата публикации

FERRITIC CAST IRON HAVING SPHEROIDAL GRAPHITE

Номер: US20180209020A1
Автор: MUELLER Hauke, SCHLIMOK Lukas
Принадлежит: Eickhoff Giesserei GmbH

The invention relates to ferritic cast iron comprising spheroidal graphite, containing, in % by mass, 1. A ferritic cast iron comprising spheroidal graphite , containing , in % by mass ,from 3.4 to 3.8% of carbon (C)from 1.5 to 2.1% of silicon (Si)not more than 0.25% of manganese (Mn)not more than 0.05% of sulfur (S)not more than 0.6% of usual accompanying elementsbalance iron (Fe)wherein the accompanying elements chromium (Cr), vanadium (V), niobium (Nb) and titanium (Ti) in total are limited to 0.05% by mass.2. The use of ferritic cast iron as claimed in for cold-sensitive components.3. The use of ferritic cast iron as claimed in in ships or wind power plants. The invention relates to ferritic cast iron comprising spheroidal graphite, containing, in % by mass:The accompanying elements which occur most frequently in ferritic cast iron and usually originate from the starting materials used (scrap and/or pig iron and/or recycled material) are, for example, phosphorus (P), magnesium (Mg), chromium (Cr), nickel (Ni), molybdenum (Mo), copper (Cu), aluminum (Al), titanium (Ti), vanadium (V), niobium (Nb), zirconium (Zr), antimony (Sb), tin (Sn), lead (Pb), cerium (Ce), bismuth (Bi), tellurium (Te) and also further rare earths and the like. Some of these accompanying elements can, particularly if they are carbide formers, adversely affect the microstructure being formed. For this reason, the total content of accompanying elements is generally limited to the value indicated above in the case of commercial ferritic cast iron comprising spheroidal graphite.The standard DIN-EN 1535 relevant to ferritic cast iron comprising spheroidal graphite leaves the chemical composition in detail and thus also the content of accompanying elements up to the producer, as long as the physical properties sent forth in the standard are adhered to.Ferritic cast iron comprising spheroidal graphite is basically an iron material which has a microstructure having embedded spheroidal graphite. This ...

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Номер записи: 62
05-08-2021 дата публикации

Tough And Corrosion Resistant White Cast Irons

Номер: US20210238702A1
Автор: Tang Xinhu
Принадлежит:

An end-use casting of a high chromium white iron, i.e. a casting that has been heat-treated, includes a ferrous matrix and Oat least two different chromium carbides dispersed in the matrix, with at least one of the chromium carbides including a transformation product of an as-cast chromium carbide. 1. A casting of a high chromium white iron that , in an end-use form of the casting after heat treatment , includes a ferrous matrix and primary carbides including at least two different chromium carbides dispersed in the matrix , the primary carbides having a core including an as-cast chromium carbide and a shell surrounding the core including a transformation product of the as-cast chromium carbide.2. The end-use casting defined in wherein the chromium carbides dispersed in the matrix are MCand MC claim 1 , where “M” comprises Cr claim 1 , Fe claim 1 , and Mn.3. The end-use casting defined in wherein the MCis a transformation product of MCwith the MCforming during heat treatment of the as-cast form of the casting.4. The end-use casting defined in or wherein the composition of the casting comprises the following composition:Cr: 30-40 wt. %C: 1.5-3 wt. %Cr/C ratios (wt. %): 9:1-15:1Up to 3 wt. % each of any one or more than one of Mn, Si, Ni, Mo, and Cu,Incidental impuritiesBalance: Fe.5. The end-use casting defined in wherein the chromium carbides dispersed in the matrix are 30-60 vol. % of the casting.69-. (canceled)10. The end-use casting defined in wherein the MCchromium carbides are 25-30 vol. % of the casting.11. The end-use casting defined in wherein the matrix is 40-70 vol. % of the casting.12. The end-use casting defined in wherein the chromium carbides dispersed in the matrix are MCand MC claim 1 , where “M” comprises Cr claim 1 , Fe claim 1 , and Mn.13. The end-use casting defined in wherein the MC is a transformation product of MCwith the MC forming during heat treatment of the as-cast form of the casting.14. The end-use casting defined in or wherein the ...

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Номер записи: 63
13-08-2015 дата публикации

METHOD OF REPAIRING DEFECTS IN CAST IRON WORKPIECES, AND A METHOD OF CONNECTING CAST IRON WORKPIECES

Номер: US20150224572A1
Автор: ZHANG Hong Wei
Принадлежит:

A method of repairing defect in cast iron workpiece, including: machining the workpiece in the area of the defect to remove the defective material and form a chamber opening at a surface of the workpiece; anchoring a receptacle to the workpiece above the chamber (), the receptacle is provided with an orifice in communication with the chamber; adding molten iron () into the receptacle so that it at least part of it flows into the chamber; adding slagging agent () into the receptacle; heating the slagging agent and the molten iron with an electrode (); adding nodulizing agent into the molten iron so as to segregate graphite; and allowing the molten iron and the workpiece to cool down slowly. The above-described technique also has applicability for connecting two cast iron workpieces () together. 1. A method of repairing a defect in a ductile cast iron workpiece , comprising:machining the workpiece in the area of the defect to remove the defective material and form a chamber opening at a surface of the workpiece;anchoring a receptacle to the workpiece above the chamber, the receptacle is provided with an orifice in communication with the chamber;adding molten iron into the receptacle so that at least part of it flows into the chamber;adding slagging agent into the receptacle;heating the slagging agent and the molten iron with an electrode;adding nodulizing agent into the molten iron so as to segregate graphite; andallowing the molten iron and the workpiece to cool down slowly.2. The method according to claim 1 , wherein the step of cooling is through natural air cooling by exchanging heat with the ambient environment.3. The method according to claim 1 , wherein the step of cooling is through natural air cooling and simultaneous application of a certain degree of heat.4. The method according to claim 1 , wherein the step of adding nodulizing agent into the molten iron includes inserting into the molten iron a feeder tube containing a wire therein.5. The method according ...

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Номер записи: 64
05-08-2021 дата публикации

CAST ALLOY FLAKES FOR R-T-B RARE EARTH SINTERED MAGNET

Номер: US20210241949A1
Автор: MURAOKA Akifumi
Принадлежит: TDK Corporation

Cast alloy flakes for a R-T-B based rare earth sintered magnet include R (a cast alloy flakes rare earth element), T (a mixture of Fe or Fe and a transition metal (except for Fe and Cu)), M (one or more metals selected from Al, Ga and Cu), and B, wherein R is in the range of 28 to 33% by mass, B is in the range of 0.8 to 1.1% by mass, and M is in the range of 0.1 to 2.7% by mass, and the balance T and impurities. The cast alloy flakes have an area ratio of an R-rich phase in the range of 0.03% to 5% on the roll surface of the cast alloy flakes, or have a content of a coarse R-rich phase having a short axis length of 20 μm or more in the R-rich phase of 20 pieces or less. 12-. (canceled)3. Cast alloy flakes for an R-T-B based rare earth sintered magnet , comprising:R which is a rare earth element;T which is Fe or a mixture of Fe and a transition metal (except for Fe and Cu);M which is one or more metals selected from the group consisting of Al, Ga, and Cu; andB,wherein the cast alloy flakes comprises R in a range of 28% by mass to 33% by mass;the cast alloy flakes comprises B in a range of 0.8% by mass to 1.1% by mass;the cast alloy flakes comprises M in a range of 0.1% by mass to 2.7% by mass;a remainder consists of T and inevitable impurities;one surface of the cast alloy flakes is a roll surface; andan area ratio of a R-rich phase on the roll surface is in a range of 0.03% to 5%.4. The cast alloy flakes for an R-T-B based rare earth sintered magnet according to claim 3 ,wherein the cast alloy flakes comprises Cu in a range of 0% by mass to 1.0% by mass;the cast alloy flakes comprises Al in a range of from 0% by mass to 0.7% by mass; andthe cast alloy flakes comprises Ga in a range of 0% by mass to 1.0% by mass.5. The cast alloy flakes for an R-T-B based rare earth sintered magnet according to claim 3 ,wherein the inevitable impurities comprises oxygen; andthe cast alloy flakes comprises oxygen of 0.10 mass % or less.6. Cast alloy flakes for an R-T-B based rare ...

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Номер записи: 65
03-08-2017 дата публикации

NODULAR GRAPHITE CAST IRON FOR PISTONS, ONE-PIECE PISTON, AND MARINE ENGINE

Номер: US20170218488A1
Автор: ANJIKI Takuya, KOTANI Tomokatsu, Oka Masanori, SATO Risa
Принадлежит: YAMAR CO., LTD.

A nodular graphite cast iron for pistons according to an embodiment contains, in mass %, C: 2.7 to 4.3%, Si: 2.0 to 3.5%, Mn: 0.3 to 0.8%, Mg: 0.02 to 0.10%, Cu: 0.3 to 1.0%, Cr: 0.05 to 0.90%, and Mo: 0.05 to 1.00% with the balance being composed of Fe and inevitable impurities. Then, the C content and the Si content fall within a composition range defined by a line sequentially joining respective points of point A (2.7%, 3.5%), point B (3.2%, 2.0%), point C (4.3%, 2.0%), and point D (3.8%, 3.5%) indicated by (the C content and the Si content) in a graph illustrating the relation between the C content and the Si content. 1. A nodular graphite cast iron for pistons , containing , in mass % , C: 2.7 to 4.3% , Si: 2.0 to 3.5% , Mn: 0.3 to 0.8% , Mg: 0.02 to 0.10% , Cu: 0.3 to 1.0% , Cr: 0.05 to 0.90% , and Mo: 0.05 to 1.00% with the balance being composed of Fe and inevitable impurities , whereinthe C content and the Si content fail within a composition range defined by a line sequentially joining respective points of point A (2.7%, 3.5%), point B (3.2%, 2.0%), point C (4.3%, 2.0%), and point D (3.8%, 3.5%) indicated by (the C content and the Si content) in a graph illustrating the relation between the C content and the Si content.2. The nodular graphite cast iron for pistons according to claim 1 , containing claim 1 , in mass % claim 1 , Cr: 0.2 to 0.4%.3. The nodular graphite cast iron for pistons according to claim 1 , containing claim 1 , in mass % claim 1 , Mo: 0.3 to 0.5%.4. The nodular graphite cast iron for pistons according to claim 1 , whereinamong the inevitable impurities, in mass %, S is suppressed to 0.05% or less and P is suppressed to 0.1% or less.5. The nodular graphite cast iron for pistons according to claim 1 , whereinthe nodular graphite cast iron for pistons is a pearlite-based nodular graphite cast iron.6. A one-piece piston fabricated by using the nodular graphite cast iron for pistons according to .7. A marine engine claim 1 , comprising:{' ...

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Номер записи: 66
11-07-2019 дата публикации

SPHEROIDAL GRAPHITE CAST IRON

Номер: US20190211426A1
Автор: Hijii Takumi, NAKAMURA Gou, SAKUMA Hitoshi, URESHINO Yoshimasa, Zhang Zhong-zhi
Принадлежит:

A spheroidal graphite cast iron having an excellent impact strength at low temperature and a method for producing the same are provided. The present disclosure relates to the spheroidal graphite cast iron comprising: C: 3.5 mass % to 4.2 mass %; Si: 2.0 mass % to 2.8 mass %; Mn: 0.2 mass % to 0.4 mass %; Cu: 0.1 mass % to 0.7 mass %; Mg: 0.02 mass % to 0.06 mass %; Cr: 0.01 mass % to 0.15 mass %; and the balance: Fe and inevitable impurities, wherein Mn+Cr+Cu is 0.431 mass % to 1.090 mass %, a graphite nodule count is 230/mmor less, and a pearlite fraction is 30% to 85%. 1. A spheroidal graphite cast iron comprising:C: 3.5 mass % to 4.2 mass %;Si: 2.0 mass % to 2.8 mass %;Mn: 0.2 mass % to 0.4 mass %;Cu: 0.1 mass % to 0.7 mass %;Mg: 0.02 mass % to 0.06 mass %;Cr: 0.01 mass % to 0.15 mass %; andthe balance: Fe and inevitable impurities,{'sup': '2', 'wherein Mn+Cr+Cu is 0.431 mass % to 1.090 mass %, a graphite nodule count is 230/mmor less, and a pearlite fraction is 30% to 85%.'}2. A method for producing the spheroidal graphite cast iron according to claim 1 , comprising:(i) a preparation step of preparing a molten cast iron, and(ii) a cooling step of cooling the molten cast iron prepared in (i),wherein the cooling step of (ii) comprises:(a) a first cooling step of adjusting a cooling rate from a pouring temperature to a temperature at A1 transformation point in an iron-carbon phase diagram to 15° C./min to 25° C./min; and(b) a second cooling step of adjusting a cooling rate from the temperature at A1 transformation point to a temperature at which no further transformation of iron takes place in the spheroidal graphite cast iron to 5° C./min to 20° C./min. The present application claims priority from Japanese patent application JP 2018-002778 filed on Jan. 11, 2018, the content of which is hereby incorporated by reference into this application.The present disclosure relates to a spheroidal graphite cast iron, more particularly, to a spheroidal graphite cast iron ...

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Номер записи: 67
20-08-2015 дата публикации

MULTIPLE-PHASE SURFACES, AND METHOD THEREFOR

Номер: US20150231757A1
Автор: Aviezer Shai, Mandel Kostia, Shamshidov Boris, Stefanidin Sergei
Принадлежит:

A workpiece having a multiple-phase working surface, and a lapping process for producing the surface, the process including: (a) providing a system including: (i) a workpiece having a multiple-phase working surface having a first continuous solid phase, and a second solid phase, intimately dispersed within the continuous phase in the multiple-phase working surface, she continuous phase having a hastiness exceeding a hardness of the second phase by a Mohs Hardness of at least 0.5; (ii) a contact surface, disposed generally opposite the working surface, having a Shore D hardness within a range of 40-90, and a Young's modulus of less than 20 gigapascels; (iii) a plurality of abrasive particles, freely disposed between the contact and working surfaces, and (b) lapping the working surface by exerting a pressure on the surfaces and applying a relative motion between the surfaces, to effect an elastic interaction between the contact surface and the abrasive particles in which at least a portion of the abrasive particles penetrate the working surface, to produce a lapped product having a modified working surface, in which an exterior surface of the second phase is recessed by an average of at least 1.5 micrometers with respect to an exterior surface of the continuous phase. 1. A workpiece comprising: a multiple-phase working surface including: (A) a first continuous solid phase; (B) a second solid phase , intimately dispersed within said continuous phase in said multiple-phase working surface , said continuous phase having a hardness exceeding a hardness of said second phase by a Mohs Hardness of at least 0.5 , and in which said second phase is a recessed phase having an exterior surface that is recessed by an average of at least 1.5 micrometers with respect to an exterior surface of said continuous phase.2. The workpiece of claim 1 , wherein said continuous phase has a hardness exceeding a hardness of said second phase by a Mobs Hardness of at least 1.0.3. The workpiece of ...

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Номер записи: 68
30-10-2014 дата публикации

CYLINDER LINER AND CASt IRON ALLOY

Номер: US20140318516A1
Автор: Edmo Soares J.
Принадлежит:

A cylinder liner for an internal combustion engine may include a cast iron alloy having a pearlitic structure with at least 70% of graphitization with spheroidal graphite morphology. The cast iron alloy may include at least 2.8% to 4.0% in weight of carbon; 1.8% to 3.5% in weight of silicon; 0.2% to 1.0% in weight of manganese; a maximum of 0.5% in weight of phosphorus; a maximum of 0.05% in weight of sulfur; a maximum of 0.5% in weight of vanadium; a maximum of 0.5% in weight of molybdenum; 0.2% to 1.5% in weight of nickel; a maximum of 0.3% in weight of tin; 0.005% to 0.06% in weight of magnesium. 1. A Cylinder liner for an internal combustion engine comprising: at least 2.8% to 4.0% in weight of carbon; 1.8% to 3.5% in weight of silicon; 0.2% to 1.0% in weight of manganese; a maximum of 0.5% in weight of phosphorus; a maximum of 0.05% in weight of sulfur; a maximum of 0.5% in weight of vanadium; a maximum of 0.5% in weight of molybdenum; 0.2% to 1.5% in weight of nickel; a maximum of 0.3% in weight of tin; 0.005% to 0.06% in weight of magnesium;', 'at least one of the elements copper, cobalt, titanium, niobium, boron, aluminum, molybdenum, zirconium, nitrogen, antimony, arsenic and bismuth in a total of up to 7.0% of the total weight of the alloy, and iron as remainder;', 'an inner diameter having an induction hardening thermal treatment and a hardness between 300 HV to 835 HV; and', 'an elasticity modulus of at least 130 GPa., 'a cast iron alloy having a pearlitic structure with at least 70% of graphitization with spheroidal graphite morphology, the cast iron alloy including24.-. (canceled)5. The cylinder liner according to claim 1 , wherein the cast iron alloy includes up to 15% in weight of ferrite.6. The cylinder liner according to claim 1 , wherein the cast iron alloy includes a tensile strength higher than 500 Megapascal (MPa).7. The cylinder liner according to claim 1 , wherein the cast iron alloy includes a fatigue strength greater than 230 Megapascal ( ...

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Номер записи: 69
18-07-2019 дата публикации

Iron Material For High-Temperature-Resistant Bearing Bushings, Bearing Bushing Made Of Said Material, And Turbocharger Having Such A Bearing Bushing

Номер: US20190218935A1
Автор: Muench Guenter, Thomas Martin, WAAS ALEXANDER
Принадлежит:

Bearing bushings which are exposed to highly elevated temperatures during operation, corresponding high-temperature-resistant bearing bushings and exhaust-gas turbochargers having at least one such bearing bushing, include an iron material having a material composition which, apart from iron, has at least carbon, silicon, manganese, nickel, chromium, molybdenum and tungsten alloy constituents in certain amounts. This material composition ensures sufficient temperature resistance and self-lubricating properties with simultaneously good machining properties and a moderate price. 16-. (canceled)7. An iron material , comprising:a material composition including iron, Fe and at least alloy constituents within limit amounts stated below in percent by weight, wt. %:carbon, C: 1.5 to 3.0 wt. %;silicon, Si: 1.0 to 6.0 wt. %;manganese, Mn: 0.5 to 7.00 wt. %;nickel, Ni: 12.0 to 36.0 wt. %;chromium, Cr: 0.2 to 16.00 wt. %;phosphorus, P: up to 0.25 wt. %;copper, Cu: up to 7.5 wt. %;molybdenum, Mo: 0.5 to 5.0 wt. %; andtungsten, W: 0.3 to 2.0 wt. %.8. The iron material according to claim 7 , wherein said material composition forms a high-temperature-resistant bearing bushing.9. The iron material according to claim 7 , wherein said alloy constituents are within limit amounts stated below in percent by weight claim 7 , wt. %:carbon, C: 1.5 to 3.0 wt. %;silicon, Si: 1.0 to 6.0 wt. %;manganese, Mn: 1.5 to 7.00 wt. %;nickel, Ni: 12.0 to 36.0 wt. %;chromium, Cr: 6.0 to 12.00 wt. %;phosphorus, P: 0.05 to 0.25 wt. %;copper, Cu: 0.5 to 7.5 wt. %;molybdenum, Mo: 2.0-5.0 wt. %; andtungsten, W: 0.8-2.0 wt. %.10. The iron material according to claim 7 , which further comprises free carbon incorporated in a structure of the iron material as lamellar graphite or nodular graphite or vermicular graphite to improve self-lubrication properties of the iron material.11. The iron material according to claim 9 , which further comprises free carbon incorporated in a structure of the iron material as ...

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Номер записи: 70
09-07-2020 дата публикации

Method for heat-treating uppermost surface of spheroidal graphite cast iron and spheroidal graphite cast iron heat-treated by the same

Номер: US20200216923A1
Автор: Eun-Soo Kwon, Hyung-Gook Lee, Yong-Bo Sim
Принадлежит: Hyundai Motor Co, Kia Motors Corp

Disclosed are a method for heat-treating a surface of a spheroidal graphite cast iron, particularly, heat-treating an uppermost surface of spheroidal graphite cast iron, and spheroidal graphite cast iron heat-treated by the same. The method may include first heat treating for forming ferrite and second heat treating for oxy-nitriding. The spheroidal graphite cast iron heat-treated includes an oxidation layer and a compound layer having a thickness of about 15 to 30 μm, which may be uniform. The method of the heat-treating may decrease the pearlite fraction in the uppermost surface of spheroidal graphite cast iron and increase the ferrite fraction by forming ferrite, thereby forming a compound layer having a thickness of about 15 to 30 μm during an oxy-nitriding heat treatment.

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Номер записи: 71
27-11-2014 дата публикации

PROCESS FOR PRODUCING SPHEROIDAL-GRAPHITE CAST IRON, AND SPHEROIDAL-GRAPHITE CAST IRON MEMBER OBTAINED FROM SAID SPHEROIDAL-GRAPHITE CAST IRON

Номер: US20140348694A1
Автор: Baba Tsukasa, Horiya Takao, Idei Hiroshi, KITAHARA Masakazu, NARITA Hidekazu, Nishikawa Yutaka, Sato Takashi, Tokiyama Takuya
Принадлежит:

A process for producing spheroidal graphite cast iron includes a spheroidization treatment, an inoculant treatment and a pouring inoculation treatment. A molten iron is subjected to the spheroidization treatment using a spheroidizing agent of an Fe—Si—Mg—Ca-based alloy which contains a given amount of Ba and contains substantially no rare-earth element. 1. A process for producing spheroidal graphite cast iron which contains substantially no rare-earth element , the process comprising:(a) a step of adding a spheroidizing agent of an Fe—Si—Mg—Ca-based alloy that contains, in terms of % by mass, 3.0 to 6.0% of Mg, 1.0 to 2.0% of Ca, 0.5 to 3.5% of Ba, and 0.3% or less of Al and that contains substantially no rare-earth element to a molten iron in an amount of 0.8 to 2.0%, in terms of % by mass based on the molten iron, to conduct a spheroidization treatment of the molten iron in a ladle;(b) a step of conducting an inoculation treatment using a first Fe—Si—Ca-based inoculant or Ca—Si-based inoculant, either simultaneously with the step (a) or after the step (a); and(c) a step of adding a second Fe—Si—Ca-based inoculant containing, in terms of % by mass, 45 to 75% of Si and 1.0 to 3.0% of Ca to the molten iron after the step (b) and before the molten iron is cast into a casting mold, in an amount of 0.2 to 0.4% in terms of % by mass based on the molten iron which has not undergone the spheroidization treatment, to conduct a pouring inoculation treatment,wherein the spheroidal graphite cast iron to be obtained has a composition which contains, in terms of % by mass, 3.0 to 4.5% of C, 3.0 to 4.0% of Si, 0.2 to 0.4% of Mn, 0.006 to 0.020% of S, 0.08 to 0.30% of Cu, 0.020 to 0.040% of Sn, 0.015 to 0.050% of Mg, 0.03% or less of Al, and 0.01% or less of Zn, with the remainder being Fe and unavoidable impurities.2. A spheroidal graphite cast iron member comprising spheroidal graphite cast iron obtained by the production process according to claim 1 ,{'sup': '−3', "the ...

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Номер записи: 72
24-09-2015 дата публикации

METAL ALLOYS FOR HIGH IMPACT APPLICATIONS

Номер: US20150267283A1
Автор: Dolman Kevin
Принадлежит:

A casting of a white cast iron alloy and a method of producing the casting are disclosed. A white cast alloy is also disclosed. The casting has a solution treated microstructure that comprises a ferrous matrix of retained austenite and chromium carbides dispersed in the matrix, with the carbides comprising 15 to 60% volume fraction of the alloy. The matrix composition comprises: manganese: 8 to 20 wt %; carbon: 0.8 to 1.5 wt %; chromium: 5 to 15 wt %; and iron: balance (including incidental impurities). 1. A casting of a white cast iron alloy having a solution treated microstructure comprising: manganese: 8 to 20 wt %', 'carbon: 0.8 to 1.5 wt %;', 'chromium: 5 to 15 wt %; and', 'iron: balance (including incidental impurities); and, '(a) a ferrous matrix comprising retained austenite, the matrix having a composition of(b) chromium carbides dispersed in the matrix, the carbides comprising 15 to 60% volume fraction of the alloy.228. The casting defined in wherein the chromium concentration and/or the carbon concentration in a bulk chemistry of the white cast iron alloy is selected having regard to an inverse relationship between chromium concentration and carbon concentration in the matrix to control the matrix concentration of one or both of the chromium and the carbon to be within the ranges in the matrix defined in claim so that the casting has required properties claim 1 , such as toughness claim 1 , hardness claim 1 , wear resistance claim 1 , work hardening capacity claim 1 , corrosion resistance claim 1 , or any combination thereof.3. The casting defined in wherein the matrix concentration of carbon is greater than 0.8 wt % and less than 1.5 wt %.4. The casting defined in wherein the matrix concentration of carbon is more than 1 wt %.5. The casting defined in wherein the carbides comprise 5 to 60% volume fraction of the casting.6. The casting defined in wherein the microstructure comprises 15 to 30 volume % carbides dispersed in the retained austenite matrix.7. ...

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Номер записи: 73
04-12-2014 дата публикации

Spheroidal graphite cast iron having excellent strength and toughness and its production method

Номер: US20140352851A1
Автор: Kentaro Fukumoto, Lin Wang, Masahide Kawabata
Принадлежит: Hitachi Metals Ltd

A spheroidal graphite cast iron having (a) a composition comprising by mass 3.4-4% of C, 1.9-2.8% of Si, 0.02-0.06% of Mg, 0.2-1% of Mn, 0.2-2% of Cu, 0-0.1% of Sn, 0.85-3% of (Mn+Cu+10×Sn), 0.05% or less of P, and 0.02% or less of S, the balance being Fe and inevitable impurities, and (b) a duplex matrix structure comprising by area 2-40% of fine ferrite phases and 60-98% of fine pearlite phases, the maximum length of the ferrite phases being 300 μm or less, and (c) the pearlite phases being formed around graphite particles dispersed in the duplex matrix structure.

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Номер записи: 74
14-09-2017 дата публикации

CAST-IRON ALLOY, AND CORRESPONDING PART AND PRODUCTION METHOD

Номер: US20170260608A1
Автор: Prunier Jean-Baptiste
Принадлежит:

This spheroidal graphite or flake graphite cast-iron alloy in weight % comprises the following elements: Carbon (C) between 1.2% and 3.5%, Silicon (Si) between 1.0% or 1.2% and 3%, Nickel (Ni) between 26% and 31%, Cobalt (Co) between 15% and 20%, the remainder being Iron and inevitable impurities. 1. Spheroidal graphite or flake graphite cast-iron alloy comprising the following elements in weight %:Carbon (C) between 1.2% and 3.5%,Silicon (Si) between 1.0% or 1.2% and 3%,Nickel (Ni) between 26% and 31%,Cobalt (Co) between 15% and 20%,optionally:Magnesium (Mg) between 0.02% and 0.10%,Manganese (Mn)±1.5%,Chromium (Cr)±0.5%, and/orPhosphorus (P)±0.12 or±0.04%, and/orSulfur (S)±0.11 or±0.03%, and/orMolybdenum (Mo)±0.5%, and/orCopper (Cu)±0.5%,the remainder being Iron and inevitable impurities.2. The alloy according to claim 1 , wherein the Nickel (Ni) content is at least 27% or 28%.310-. (canceled)11. The alloy according to claim 1 , wherein the Nickel (Ni) content is no more than 30%.12. The alloy according to claim 1 , wherein the Cobalt (Co) content is at least 16%.13. The alloy according to claim 1 , wherein the Cobalt (Co) content is no more than 18% or 19%.14. The alloy according to claim 1 , wherein the alloy comprises at least 1.4% or 1.5% Carbon (C).15. The alloy according to claim 14 , wherein the alloy comprises no more than 3.1% or 3.3% Carbon (C).16. The alloy according to claim 1 , wherein the alloy comprises at least 1.4% or 1.5% Silicon (Si).17. The alloy according to claim 16 , wherein the alloy comprises no more than 2.6% or 2.8% Silicon (Si).18. The alloy according to claim 1 , wherein the content of Manganese (Mn) is at least 0.01% and no more than 1 0%.19. The alloy according to claim 1 , wherein the content of Copper (Cu) is no more than 0.4%.20. The alloy according to claim 19 , wherein the content of Copper (Cu) is no more than 0.3%.21. The alloy according to claim 20 , wherein the content of Copper (Cu) is no more than 0.2%.22. The alloy ...

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Номер записи: 75
21-09-2017 дата публикации

HIGH STRENGTH CAST IRON FOR CYLINDER LINERS

Номер: US20170268082A1
Автор: Gekonde Haron, Hunter Jeff, Jenness Blair, Kantola Troy, Miller John
Принадлежит:

A cast iron having high strength, hardness, and thermal conductivity for a cylinder liner of an internal combustion engine is provided. The cast iron includes 3.2 wt. % to 3.8 wt. % carbon, 2.2 wt. % to 3.2 wt. % silicon, 0.5 wt. % to 1.3 wt. % copper, and at least 75.0 wt. % iron, based on the total weight of the cast iron. The cast iron further includes 0.01 wt. % to 0.5 wt. % manganese, 0.01 wt. % to 0.2 wt. % chromium, up to 0.3 wt. % phosphorous, up to 0.05 wt. % sulfur, up to 0.2 wt. % tin, and up to 0.1 wt. % magnesium, based on the total weight of the cast iron. Preferably, the cast iron is free of molybdenum, nickel, and vanadium. The cast iron is also heat treated and solidifies to achieve fully spheroidal graphite.

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Номер записи: 76
08-10-2015 дата публикации

Fine-grained high carbide cast iron alloys

Номер: US20150284829A1
Автор: Justin Lee Cheney
Принадлежит: Scoperta Inc

Embodiments of alloys having high, fine-grained carbide content, and methods of manufacturing such alloys. The alloys can be determined through the use of thermodynamic, microstructural, and compositional criterial in order to create a high strength and high toughness alloy. In some embodiments, the alloys can be used as a wear resistant component.

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Номер записи: 77
29-08-2019 дата публикации

DUCTILE IRON ALLOYS AND MATERIALS INCLUDING A THIN-WALL LAYER OF A DUCTILE IRON ALLOY

Номер: US20190264304A1
Автор: Reinl Alexander David, Sanders Paul George, Shah Jitendra V., Stein Russell Edward, Tankersley Stephanie Lynn
Принадлежит:

The instant disclosure relates to ductile iron alloy compositions and articles that can maintain desired microstructural and mechanical properties even when cast to make thin-wall samples. Particularly, the compositions herein may maintain hardness and ductility and minimize carbide formation even when cast in samples as thin as about 1 mm to about 6 mm. In particular, the instant disclosure relates to a cast iron alloy composition including nodular or spheroidal graphite domains comprising an iron content of at least about 90% by weight, a remaining alloy content of less than about 10% by weight, about 0.65% to about 0.85% by weight copper, about 3.6% to about 4.2% by weight silicon, and about 3.4% to about 3.8% by weight carbon. 1. A cast iron alloy composition including nodular or spheroidal graphite domains comprising:an iron content of at least about 90% by weight;a remaining alloy content of less than about 10% by weight;about 0.65% to about 0.85% by weight copper;about 3.6% to about 4.2% by weight silicon; andabout 3.4% to about 3.8% by weight carbon.2. The cast iron alloy of wherein said nodular or spheroidal graphite domains are present in an amount of greater than about 5% by volume with respect to the total volume of said cast iron alloy composition.3. The cast iron alloy composition of comprising aluminum in an amount less than about 0.8% by weight.4. The cast iron alloy composition of comprising molybdenum in an amount of less than about 0.04% by weight.5. The cast iron alloy composition of wherein said composition is substantially free of aluminum claim 1 , molybdenum claim 1 , and niobium.6. The cast iron alloy composition of comprising manganese in an amount of between about 0.1% to about 0.5% by weight.7. The cast iron alloy composition of comprising magnesium in an amount of between about 0.03% to about 0.06% by weight.8. The cast iron alloy composition of further comprising:about 40% to about 70% by volume of ferrite domains with respect to the ...

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Номер записи: 78
08-10-2015 дата публикации

HIGH MODULUS WEAR RESISTANT GRAY CAST IRON FOR PISTON RING APPLICATIONS

Номер: US20150285378A1
Автор: Gekonde Haron Ogega
Принадлежит:

A piston ring formed of cast iron provides improved machinability and exceptional performance and minimum costs. The cast iron includes 2.2 to 2.9 wt. % carbon, 3.2 to 4.2 wt. % silicon, 0.75 to 1.25 wt. % copper, 1.0 to 1.5 wt. % manganese, 0.09 to 0.15 wt. % sulfur, not greater than 0.2 wt. % phosphorous, and an average carbon equivalent of 3.8. The cast iron preferably includes a matrix of martensite with MnS and carbides dispersed therein. The matrix is also preferably free of ferrite, austenite, and steadite. The cast iron is formed by casting, autenitizing, quenching, and tempering the alloy. 1. A method of manufacturing a piston ring formed of cast iron , comprising the steps of:providing an alloy including, in weight percent (wt. %) of the alloy, 2.2 to 2.9 wt. % carbon, 3.2 to 4.2 wt. % silicon, 0.75 to 1.25 wt. % copper, 1.0 to 1.5 wt. % manganese, 0.09 to 0.15 wt. % sulfur, and not greater than 0.1 wt. % phosphorous; casting the alloy; austenitizing the alloy; quenching the autenitized alloy; and tempering the alloy.2. The method of wherein the austenitizing step includes heating the alloy to a temperature of 1750 to 1850° F. for 60 to 120 minutes.3. The method of wherein the quenching step includes disposing the austenitized alloy in oil at 140 to 150° F.4. The method of wherein the tempering step includes heating the quenched alloy to a temperature of 950 to 1000° F. for 60 to 120 minutes.5. The method of wherein the alloy includes claim 1 , in weight percent (wt. %) of the alloy claim 1 , 2.5 to 2.9 wt. % carbon claim 1 , 3.6 to 4.2 wt. % silicon claim 1 , 0.75 to 1.25 wt. % copper claim 1 , 1.0 to 1.5 wt. % manganese claim 1 , and 0.09 to 0.15 wt. % sulfur.6. The method of including forming an oil grove in the cast iron.7. A method of forming a cast iron claim 1 , comprising the steps of:providing an alloy including, in weight percent (wt. %) of the alloy, 2.2 to 2.9 wt. % carbon, 3.2 to 4.2 wt. % silicon, 0.75 to 1.25 wt. % copper, 1.0 to 1.5 wt. % ...

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Номер записи: 79
27-09-2018 дата публикации

Nodular cast alloy

Номер: US20180274066A1
Автор: Konrad PAPIS, Sebastian WIERSCHKE
Принадлежит: Georg Fischer Automobilguss GmbH Germany, Georg Fischer Automotive Kunshan Co Ltd, Georg Fischer Eisenguss Gmbh, Georg Fischer GmbH

A nodular cast alloy, a casting made therefrom, and a production process therefor, which has a perlitic-ferritic microstructure for cast iron products and has a high strength combined with good ductility and toughness even in the cast state, including, as nonferrous constituents, C, Si, Ni, Mn, Cu, Mg, Cr, Al, P, S and normal impurities, characterized in that the nodular cast alloy in the cast state without subsequent heat treatment achieves a high static strength of a 0.2% offset yield strength of ≥600 MPa and a tensile strength of ≥750 MPa combined with good ductility of an elongation at break A5 of from 2 to 10%.

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Номер записи: 80
06-10-2016 дата публикации

FINE-GRAINED HIGH CARBIDE CAST IRON ALLOYS

Номер: US20160289803A1
Автор: Cheney Justin Lee, Eibl Cameron
Принадлежит:

Embodiments of alloys having high, fine-grained carbide content, and methods of manufacturing such alloys. The alloys can be determined through the use of thermodynamic, microstructural, and compositional criterial in order to create a high strength and high toughness alloy. In some embodiments, the alloys can be used as a wear resistant component. 1. A chromium white iron alloy comprising:a composition comprising Fe, Cr, and C, the composition being predominantly Fe;wherein a total carbide and boride content in a microstructure of the alloy exceeds 40 volume %; andwherein a melt temperature range of the alloy is below about 200° C.2. The chromium white iron alloy of claim 1 , wherein the melt temperature range is below about 300° C.3. The chromium white iron alloy of claim 1 , wherein the melt temperature range is below about 100° C.4. The chromium white iron alloy of claim 1 , wherein the alloy can be formed into a sleeve or layer for use in pipelines designed to carry abrasive slurries.5. The chromium white iron alloy of claim 1 , wherein a maximum carbide fraction is 50% mole fraction or higher.6. The chromium white iron alloy of claim 1 , wherein a maximum carbide fraction is 60% mole fraction or higher.7. The chromium white iron alloy of claim 1 , wherein the composition comprises claim 1 , in weight %:Fe;C: 3.2-4%;Cr: 6-20%; andW: 4-10%.8. The chromium white iron alloy of claim 1 , wherein the composition comprises claim 1 , in weight %:Fe;C: about 2.5-about 3.8%;Cr: about 10-about 28%;Mn: about 0-about 1%;Mo: about 0-about 1%;Nb: about 0-about 5%;Si: about 0-about 1%;Ti: about 0-about 0.5%;V: about 0-about 3%; andW: about 0-about 9%.9. A wear resistant component comprising the chromium white iron alloy of .10. A method of manufacturing a chromium white iron alloy comprising:providing an alloy comprising Fe, Cr, and C, the alloy being predominantly Fe;wherein a total carbide and boride content in a microstructure of the alloy exceeds 40 volume %; andwherein a ...

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Номер записи: 81
25-12-2014 дата публикации

CAST IRON MATERIAL AND MOTOR VEHICLE PART MADE OF THE CAST IRON MATERIAL

Номер: US20140377122A1
Автор: BRODA Maik, Michels Christoph, Radebach Dirk, Ungerbuehler Frank, URSAVAS Uemit, WARKENTIN Matthias
Принадлежит:

The invention relates to a cast iron material with lamellar graphite formation. It further relates to a motor vehicle part made of the cast iron material. 1. Cast iron material with lamellar graphite formation , wherein , in addition to Fe , the cast iron material contains3.0 to 4.2 wt. % C,0.3 to 1.5 wt. % Si and2.0 to 7 wt. % Al.2. Cast iron material according to claim 1 , wherein the cast iron material contains between 0.005 and 0.03 claim 1 , preferably between 0.01 and 0.02 or claim 1 , best of all claim 1 , between 0.02 and 0.03 wt. % Bi.3. Cast iron material according to claim 1 , wherein the cast iron material contains between 2.5 and 6 claim 1 , preferably between 3.0 and 5.5 or claim 1 , best of all claim 1 , between 3.5 and 5 wt. % Al.4. Cast iron material according to claim 1 , wherein the cast iron material contains up to 0.08 claim 1 , preferably up to 0.06 or claim 1 , best of all claim 1 , up to 0.04 wt. % P.5. Cast iron material according to claim 1 , wherein the cast iron material contains up to 1.0 claim 1 , preferably up to 0.8 or claim 1 , best of all claim 1 , up to 0.6 wt. % Cu.6. Cast iron material according to claim 1 , wherein the cast iron material contains up to 0.8 claim 1 , preferably up to 0.6 or claim 1 , best of all claim 1 , up to 0.4 wt. % Mn.7. Cast iron material according to claim 1 , wherein the cast iron material contains up to 0.2 claim 1 , preferably up to 0.15 or claim 1 , best of all claim 1 , up to 0.1 wt. % Sn.8. Cast iron material according to claim 1 , wherein the cast iron material contains 0.02 to 0.15 claim 1 , preferably 0.04 to 0.10 or claim 1 , best of all claim 1 , 0.06 to 0.08 wt. % S.9. Cast iron material according to claim 1 , wherein the cast iron material contains 0.1 to 0.3 claim 1 , preferably 0.15 to 0.25 or claim 1 , best of all claim 1 , 0.175 to 0.20 wt. % Cr.10. Cast iron material according to claim 1 , wherein the cast iron material contains up to 0.02 claim 1 , preferably up to 0.017 or claim 1 , ...

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Номер записи: 82
12-09-2019 дата публикации

Stator, rotary shaft, dry vacuum pump and associated manufacturing processes

Номер: US20190277286A1
Автор: Eric Mandallaz
Принадлежит: Pfeiffer Vacuum SAS

A stator of a dry vacuum pump is provided, the pump having at least two rotors to rotate in a synchronised manner in opposite directions in a central housing to drive a gas to be pumped between a suction inlet and a delivery outlet, the stator including an outer part made of cast iron containing less than 5% nickel, and a stator insert wherein is arranged the central housing configured to receive the at least two rotors, the stator insert containing at least 10% nickel, the outer part of the stator having been cast on the stator insert. There is also provided a rotary shaft configured to bear and drive in rotation at least one rotor of a vacuum pump, a dry vacuum pump having at least one such stator and/or at least one such shaft, and a method for manufacturing such a stator and/or such a rotary shaft.

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Номер записи: 83
10-09-2020 дата публикации

SPHERICAL GRAPHITE CAST IRON SEMI-SOLID CASTING METHOD AND SEMI-SOLID CAST PRODUCT

Номер: US20200283859A1
Автор: ADACHI Mitsuru, Itamura Masayuki, ITOFUJI Haruki
Принадлежит:

The present invention provides a casting method and cast product of spherical graphite cast iron, in which, even with a small modulus, there is no chill, the spherical graphite in the tissue is further made ultrafine, the dispersion of the particle diameter is small, and the number of the particles is several times that of the conventional one in the as cast state where heat treatment is not carried out. 1. A semi-solid casting method of a spherical graphite cast iron comprised from;a melting process, in which raw material composed of cast iron is melted and original molten metal is obtained;a spheroidizing treatment process, in which the original molten metal is spheroidized;an inoculation process, in which an inoculant is added to the spheroidized original molten metal; anda casting process, in which the original molten metal after the inoculation process is poured and filled up to a product space through a gate of a metal mold;wherein the original molten metal before being filled up to the product space is controlled to a semi-solidification temperature range;the pouring temperature is controlled to (melting point+40° C.) or less; and a temperature of the raw material when passing through the gate is set to 1140-1170° C.2. The semi-solid casting method of the spherical graphite cast iron according to claim 1 , wherein an amount of nitrogen at the time of melting of the cast iron is controlled to 0.9 ppm (mass) or less.3. The semi-solid casting method of the spherical graphite cast iron according to claim 1 , wherein the semi-solidification temperature range is set before the gate by controlling the amount of heat released from the molten metal.4. The semi-solid casting method of the spherical graphite cast iron according to claim 1 , wherein a temperature of the raw material when passing through the gate is controlled to a constant temperature in the semi-solidification temperature range.5. (canceled)6. (canceled)7. The semi-solid casting method of the spherical ...

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Номер записи: 84
02-11-2017 дата публикации

DUCTILE IRON COMPOSITION AND PROCESS OF FORMING A DUCTILE IRON COMPONENT

Номер: US20170314104A1
Автор: Park Junyoung, UCOK Ibrahim
Принадлежит:

A ductile iron composition including, by weight: 1. A ductile iron composition , comprising , by weight:about 3.4% to about 4.0% Si;about 3.0% to about 3.5% C;about 0.5% to about 1.0% Cr;about 0.02% to about 0.05% Mo;up to about 0.01% S;up to about 0.5% Mn; andbalance iron and incidental impurities;{'sup': '2', 'wherein the composition includes a ferritic body center cubic microstructure and has a graphite nodule density of greater than 100 per mm.'}2. The ductile iron composition of claim 1 , wherein the ductile iron composition is devoid of Ni.3. The ductile iron composition of claim 1 , wherein the ductile iron composition includes about 3.5% to about 3.9% silicon claim 1 , about 3.1% to about 3.4% carbon claim 1 , about 0.6% to about 0.9% chromium claim 1 , about 0.03% to about 0.04% molybdenum claim 1 , up to about 0.01% sulfur claim 1 , up to about 0.4% manganese claim 1 , and balance iron and incidental impurities.4. The ductile iron composition of claim 1 , wherein the ductile iron composition includes microstructure containing less than 15 areal % pearlite.5. The ductile iron composition of claim 1 , wherein the ductile iron composition includes microstructure containing less than 5 areal % pearlite.6. The ductile iron composition of claim 1 , wherein the ductile iron composition includes microstructure containing carbide volumetric percentage between about 5% and about 20%.7. The ductile iron composition of claim 1 , wherein the graphite nodule density is greater than 125 per mm.8. The ductile iron composition of claim 1 , wherein the graphite nodule density is greater than 150 per mm.9. A component comprising the ductile iron composition claim 1 , according to .10. The component of claim 9 , comprising a component selected from the group consisting of gearbox components claim 9 , ring gears claim 9 , planetary gears claim 9 , and mining equipment.11. A method of forming a ductile iron component claim 9 , the process comprising:forming a melt of a charge ...

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Номер записи: 85
02-11-2017 дата публикации

DUCTILE IRON COMPOSITION AND PROCESS OF FORMING A DUCTILE IRON COMPONENT

Номер: US20170314105A1
Автор: Moore Brian Victor, Park Junyoung
Принадлежит:

A ductile iron composition including, by weight: 1. A ductile iron composition comprising , by weight:about 3.1% to about 3.6% C;about 3.5% to about 4.0% Si;about 0.035% to about 0.050% Mg;about 0.001% to about 0.004% Ce;up to about 0.005% Sb;about 0.008% to about 0.016% S;up to about 0.04% P;up to about 0.3% Mn; andbalance iron and incidental impurities;wherein the ductile iron composition includes a ratio of Sb/Ce greater than or equal to about 1.25, has a ferritic microstructure and graphite nodules, and greater than about 65% of the graphite nodules having a highly spherical geometry.2. The composition of claim 1 , wherein the ductile iron composition includes less than about 30% of the graphite nodules have a substantially spherical geometry.3. The composition of claim 1 , wherein the composition includes a tensile strength of greater than about 540 MPa.4. The composition of claim 1 , wherein the composition includes a 0.2% yield strength of greater than about 435 MPa.5. The composition of claim 1 , wherein the composition includes an elongation of greater than 15.0%.6. The composition of claim 1 , wherein the composition has a nodule density of greater than 75 mmof highly spherical and substantially spherical graphite nodules.7. A method for forming a ductile iron composition comprising:forming a melt of a charge material;nodularizing the charge alloy with a nodularizing composition;inoculating the charge material with an inoculating composition to nucleate graphite nodules and form a ductile iron composition comprising, by weight:about 3.1% to about 3.6% C;about 3.5% to about 4.0% Si;about 0.035% to about 0.050% Mg;about 0.001% to about 0.004% Ce;up to about 0.005% Sb;about 0.008% to about 0.016% S;up to about 0.04% P;up to about 0.3% Mn; andbalance iron and incidental impurities;wherein the ductile iron composition includes a ratio of Sb/Ce greater than or equal to about 1.25, has a ferritic microstructure and graphite nodules, and greater than about 65% of ...

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Номер записи: 86
29-10-2020 дата публикации

CAST IRON INOCULANT AND METHOD FOR PRODUCTION OF CAST IRON INOCULANT

Номер: US20200340069A1
Автор: KNUSTAD Oddvar, OTT Emmanuelle
Принадлежит:

An inoculant for the manufacture of cast iron with spheroidal graphite is disclosed, the inoculant has a particulate ferrosilicon alloy having 2. The inoculant according to claim 1 , wherein the ferrosilicon alloy comprises between 45 and 60% by weight of Si.3. The inoculant according to claim 1 , wherein the ferrosilicon alloy comprises between 60 and 80% by weight of Si.4. The inoculant according to claim 1 , wherein the rare earth metals include Ce claim 1 , La claim 1 , Y and/or mischmetal.5. The inoculant according to claim 1 , wherein the inoculant comprises 0.5 to 8% by weight of particulate SbO.6. The inoculant according to claim 1 , wherein the inoculant comprises from 0.1 to 10% of particulate BiO claim 1 ,7. The inoculant according to claim 1 , wherein the inoculant comprises from 0.5 to 3% of one or more of particulate FeO claim 1 , FeO claim 1 , FeO claim 1 , or a mixture thereof claim 1 , and/or from 0.5 to 3% of one or more of particulate FeS claim 1 , FeS claim 1 , FeS claim 1 , or a mixture thereof.8. The inoculant according to claim 1 , wherein the total amount of the particulate SbOand the at least one of BiO claim 1 , and/or one or more of particulate FeO claim 1 , FeO claim 1 , FeO claim 1 , or a mixture thereof claim 1 , and/or one or more of particulate FeS claim 1 , FeS claim 1 , FeS claim 1 , or a mixture thereof is up to 20% by weight claim 1 , based on the total weight of the inoculant.9. The inoculant according to claim 1 , wherein the inoculant is in the form of a blend or a physical mixture of the particulate ferrosilicon alloy and the particulate SbOand the at least one of particulate BiO claim 1 , and/or one or more of particulate FeO claim 1 , FeO claim 1 , FeO claim 1 , or a mixture thereof claim 1 , and/or one or more of particulate FeS claim 1 , FeS claim 1 , FeS claim 1 , or a mixture thereof.10. The inoculant according to claim 1 , wherein the particulate SbOand the at least one of particulate BiO claim 1 , and/or one or more of ...

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Номер записи: 87
24-12-2015 дата публикации

HIGH-STRENGTH FLAKE GRAPHITE CAST IRON, MANUFACTURING METHOD THEREOF, AND ENGINE BODY FOR INTERNAL COMBUSTION ENGINE INCLUDING CAST IRON

Номер: US20150368763A1
Автор: CHUNG Jong Kwon, Hwang Jae Hyoung, JU Young Kyu, JUNG Ki Hwan, LEE Yeniseul, Shim Dong Seob, Yang Sik
Принадлежит:

The present disclosure relates to a manufacturing method of high-strength flake graphite cast iron, the high-strength flake graphite cast iron manufactured by the method, and an engine body including the cast iron, and more particularly, to flake graphite cast iron and a manufacturing method thereof, wherein the flake graphite cast iron has a uniform graphite shape and low probability of forming chill and has high tensile strength of at least 350 MPa and excellent workability and fluidity by controlling the content of manganese (Mn) and a trace of strontium (Sr), which are included in the cast iron, within a specific ratio. 1. A flake graphite cast iron comprising 3.0 to 3.2% of carbon (C) , 2.0 to 2.3% of silicon (Si) , 1.3 to 1.6% of manganese (Mn) , 0.1 to 0.13% of sulfur (S) , 0.06% or less of phosphorus (P) , 0.6 to 0.8% of copper (Cu) , 0.25 to 0.35% of molybdenum (Mo) , 0.003 to 0.006% of strontium (Sr) , and the balance iron (Fe) satisfying 100% as a total weight % , and having a chemical composition , in which a ratio (Mn/Sr) of the content of manganese (Mn) to the content of strontium (Sr) is in a range of 216 to 515.2. The flake graphite cast iron of claim 1 , wherein the flake graphite cast iron has a chemical composition claim 1 , in which the ratio (Mn/Sr) of the content of manganese (Mn) to the content of strontium (Sr) is in a range of 299 to 451.3. The flake graphite cast iron of claim 1 , wherein the flake graphite cast iron has a tensile strength of 355 to 375 MPa.4. The flake graphite cast iron of claim 1 , wherein the flake graphite cast iron has a Brinell hardness (BHW) of 245 to 279.5. The flake graphite cast iron of claim 1 , wherein a wedge test specimen has a chill depth of 3 mm or less.6. The flake graphite cast iron of claim 1 , wherein a fluidity test specimen has a spiral length of 730 mm or more.7. The flake graphite cast iron of claim 1 , wherein the flake graphite cast iron has a carbon equivalent (CE) in a range of 3.70 to 4.0.8. An ...

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Номер записи: 88
31-12-2015 дата публикации

CAST IRON AND BRAKE COMPONENT

Номер: US20150376747A1
Автор: Furuya Kimiaki, SHINKAWA Masaki, Tyou Mojin, WATANABE Hiroyuki
Принадлежит:

A cast iron comprising: C: 3.0 to 4.8 mass %, Si: 3.5 to 5.0 mass %, Mn: 0.5 to 2.0 mass %, Sn and/or Sb where Sn: 0.02 to 0.2 mass %, Sb: 0.01 to 0.2 mass %, Cu: 0.5 mass % or less and the balance: Fe and inevitable impurities. 1. A cast iron comprising: C: 3.0 to 4.8 mass % , Si: 3.5 to 5.0 mass % , Mn: 0.5 to 2.0 mass % , Sn and/or Sb where Sn: 0.02 to 0.2 mass % , Sb: 0.01 to 0.2 mass % , Cu: 0.5 mass % or less and the balance: Fe and inevitable impurities.2. The cast iron according to claim 1 , further comprising: Cr: 0.05 to 1.5 mass %.3. The cast iron according to claim 1 , wherein a specific heat at 200° C. is 600 J/kg/K or more.4. The cast iron according to claim 1 , wherein a thermal conductivity at 200° C. is 44 W/m/K or more.5. The cast iron according to claim 1 , wherein a pearlite area ratio in a matrix structure is 90% or more.6. A brake component produced by the cast iron according to .7. The cast iron according to claim 2 , wherein a specific heat at 200° C. is 600 J/kg/K or more.8. The cast iron according to claim 2 , wherein a thermal conductivity at 200° C. is 44 W/m/K or more.9. The cast iron according to claim 3 , wherein a thermal conductivity at 200° C. is 44 W/m/K or more.10. The cast iron according to claim 2 , wherein a pearlite area ratio in a matrix structure is 90% or more.11. The cast iron according to claim 3 , wherein a pearlite area ratio in a matrix structure is 90% or more.12. The cast iron according to claim 4 , wherein a pearlite area ratio in a matrix structure is 90% or more. The present invention relates to cast iron and a brake component favorably used in a brake device of a vehicle. In particular, the present invention relates to cast iron and a brake component having a high specific heat, thereby achieving a lightweight brake disk.A brake device of an automobile or a motorcycle is equipped with a brake disk rotating with a wheel, and a brake pad pressed to the brake disk. In order to inhibit a decrease in functionality ...

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Номер записи: 89
31-12-2015 дата публикации

ROLL OUTER LAYER MATERIAL, AND COMPOSITE ROLL FOR HOT ROLLING

Номер: US20150376748A1
Автор: Ichino Kenji, Mochida Tetsuo, Shibata Hiromitsu
Принадлежит:

A roll outer layer material contains small-size carbides having a circle equivalent diameter of 3 to 30 μm in a number of 500 to 2500 pieces/mmand large-size carbides having a circle equivalent diameter of 50 μm or more in a number of 20 pieces/mmor less, preferably having a chemical composition containing, by mass %, C: 2.4% or more and 2.9% or less, Si: 0.2% or more and 1.0% or less, Mn: 0.2% or more and 1.0% or less, Cr: 4.0% or more and 7.5% or less, Mo: 4.0% or more and 6.5% or less, V: 5.3% or more and 7.0% or less, Nb: 0.5% or more and 3.0% or less, and the balance being Fe and inevitable impurities, in which the contents of Cr, Mo, and V satisfy the relationship 1.5≦(Cr+Mo)/V≦2.4. 14-. (canceled)5. A roll outer layer material , which is a cast-iron roll outer layer material for an outer layer of a composite roll for hot rolling , the material containing small-size carbides having a circle equivalent diameter of 3 to 30 μm in a number of 500 to 2500 pieces/mmand large-size carbides having a circle equivalent diameter of 50 μm or more in a number of 20 pieces/mmor less.7. The roll outer layer material according to claim 6 , having the chemical composition further containing claim 6 , by mass % claim 6 , one or more of Al: 0.001% or more and 0.05% or less and REM: 0.001% or more and 0.03% or less.8. A composite roll for hot rolling claim 5 , which is a composite roll for hot rolling formed of an outer layer and an inner layer integrally welded together claim 5 , the outer layer formed of the roll outer layer material according to .9. A composite roll for hot rolling claim 6 , which is a composite roll for hot rolling formed of an outer layer and an inner layer integrally welded together claim 6 , the outer layer formed of the roll outer layer material according to .10. A composite roll for hot rolling claim 7 , which is a composite roll for hot rolling formed of an outer layer and an inner layer integrally welded together claim 7 , the outer layer formed of the ...

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Номер записи: 90
05-12-2019 дата публикации

CONSTRUCTION MACHINE BUCKET PART AND MANUFACTURING METHOD THEREFOR

Номер: US20190368164A1
Автор: AN Sang-Min, LEE Choung-Rae
Принадлежит:

A construction machinery bucket part includes a body including a low alloy cast iron, and a wear resistant tip cast bonded to an end portion of the body and including a white cast iron. The construction machinery bucket part includes dissimilar materials, and has improved economic feasibility and wear resistance. 1. A bucket part for construction machinery being coupled with a bucket of the construction machinery , the bucket part for construction machinery comprising:a body including at least one seating portion in a surface thereof; anda wear resistant tip cast bonded to the at least one seating portion,wherein the body and the wear resistant tip include dissimilar cast irons.2. The bucket part for construction machinery of claim 1 , wherein the body comprises a low alloy cast iron including carbon in a range from about 0.25 weight percent to about 0.36 weight percent based on a total weight of the body.3. The bucket part for construction machinery of claim 2 , wherein the body has Brinell hardness (HB) of about from 490 to 550 claim 2 , and the wear resistant tip has Rockwell hardness (HRC) of from 60 to 65.4. The bucket part for construction machinery of claim 1 , wherein the bucket part for construction machinery is provided as a tooth point claim 1 , a shroud or a cutter.5. The bucket part for construction machinery of claim 1 , wherein the body includes an inserting column claim 1 , and the wear resistant tip includes a hole into which the inserting column is inserted when combining with the seating portion.6. The bucket part for construction machinery of claim 5 , wherein a surface of the wear resistant tip which forms a cast bonding surface when cast bonded to the seating portion has a convex curve.7. The bucket part for construction machinery of claim 5 , wherein a thickness of the inserting column increases gradually from a surface of the body.8. The bucket part for construction machinery of claim 1 , wherein the seating portion includes a first recess in ...

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Номер записи: 91
01-02-2012 дата публикации

Ods-alloy of molybdenum, silicon and boron

Номер: EP1664362B1
Автор: Pascal Jehanno
Принадлежит: Plansee Se

The invention relates to a Mo-Si-B alloy comprising a Mo or Mo mixed crystal matrix, in which 25 vol. % to 90 vol. % of molybdenum silicide and molybdenum borosilicide, optionally with additional molybdenum boride are included. The alloy further comprises, as a fine dispersion, 0.1 - 5 vol. % of one or more oxides or mixed oxides with a vapour pressure at 1500 °C of < 5x10-2 bar. Not only thermal resistance is improved by the addition of oxide, but also the ductility is greatly improved.

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Номер записи: 92
17-11-2022 дата публикации

METHOD OF MANUFACTURING CAM PIECE FOR CONTINUOUSLY VARIABLE VALVE DURATION AND CAM PIECE MANUFACTURED THEREFROM

Номер: US20220364195A1
Автор: PARK Sung-Hwan
Принадлежит:

A method of manufacturing a cam piece for a continuously variable valve duration and a cam piece manufactured therefrom, and more particularly, to material and heat treatment conditions of a cam piece, may include manufacturing a cam piece by casting; heating the cam piece; maintaining a heating temperature; and salt-bathing the cam piece, in which the cam piece includes 3.2 to 4.2 wt % of carbon (C), 2.2 to 3.4 wt % of silicon (Si), and the balance iron (Fe), and may have a carbon equivalent value of 4.4 to 4.6.

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Номер записи: 93
19-01-2018 дата публикации

Method to recover a copper sulfide concentrate from an ore containing an iron sulfide

Номер: ES2650547T3
Автор: Alan Hitchiner, Christopher GREET, Gerhard Arnold, Ingo Hamann
Принадлежит: EVONIK DEGUSSA GmbH, Magotteaux International SA

Un método para recuperar un concentrado de sulfuro de cobre a partir de una mena que contiene un sulfuro de hierro, que comprende las etapas de a) triturar por vía húmeda la mena con medios de trituración para formar una pulpa mineral, b) acondicionar la pulpa mineral con un compuesto colector para formar una pulpa mineral acondicionada, y c) flotar por espuma la pulpa mineral acondicionada para formar una espuma y una cola de flotación, separando la espuma de la cola de flotación para recuperar un concentrado de sulfuro de cobre, caracterizado porque en la etapa a) se usan medios de trituración hechos de aleación de hierro fundido con alto contenido en cromo con un contenido en cromo de desde el 10 hasta el 35% en peso y entre las etapas b) y c) o durante la etapa c) se añade peróxido de hidrógeno a la pulpa mineral acondicionada. A method for recovering a copper sulphide concentrate from an ore containing an iron sulfide, comprising the steps of a) wet grinding the ore with crushing means to form a mineral pulp, b) conditioning the pulp mineral with a collecting compound to form a conditioned mineral pulp, and c) float by foam the conditioned mineral pulp to form a foam and a floating tail, separating the foam from the floating tail to recover a copper sulphide concentrate, characterized in that in step a) crushing means made of high chromium cast iron alloy with a chromium content of from 10 to 35% by weight and between stages b) and c) or during stage c) are used Hydrogen peroxide is added to the conditioned mineral pulp.

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Номер записи: 94
05-09-2017 дата публикации

Чугун

Номер: RU2630077C1
Автор: Юлия Алексеевна Щепочкина
Принадлежит: Юлия Алексеевна Щепочкина

Изобретение относится к области черной металлургии, в частности к составам чугуна, который может быть использован для изготовления деталей широкой номенклатуры в машиностроении. Чугун содержит, мас.%: углерод 3,0-3,4; кремний 1,5-2,3; марганец 1,0-1,5; хром 0,1-0,15; фосфор 0,1-0,3; никель 1,0-1,6; титан 0,01-0,03; медь 1,6-2,0; кальций 0,001-0,0025; гафний 0,3-0,4; алюминий 0,2-0,3; кобальт 1,2-1,8; железо - остальное. Техническим результатом изобретения является повышение прочности чугуна. 1 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 630 077 C1 (51) МПК C22C 37/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ На основании пункта 1 статьи 1366 части четвертой Гражданского кодекса Российской Федерации патентообладатель обязуется заключить договор об отчуждении патента на условиях, соответствующих установившейся практике, с любым гражданином Российской Федерации или российским юридическим лицом, кто первым изъявил такое желание и уведомил об этом патентообладателя и федеральный орган исполнительной власти по интеллектуальной собственности. (21)(22) Заявка: 2016149010, 13.12.2016 13.12.2016 (73) Патентообладатель(и): Щепочкина Юлия Алексеевна (RU) Дата регистрации: 05.09.2017 Приоритет(ы): (22) Дата подачи заявки: 13.12.2016 C1, 30.10.2010. RU 2337996 C1, 10.11.2008. RU 2365660 C1, 27.08.2009. JP 60247037 A, 06.12.1985. (45) Опубликовано: 05.09.2017 Бюл. № 25 2 6 3 0 0 7 7 R U (54) Чугун (57) Реферат: Изобретение относится к области черной металлургии, в частности к составам чугуна, который может быть использован для изготовления деталей широкой номенклатуры в машиностроении. Чугун содержит, мас.%: углерод 3,0-3,4; кремний 1,5-2,3; марганец 1,0-1,5; хром Стр.: 1 0,1-0,15; фосфор 0,1-0,3; никель 1,0-1,6; титан 0,010,03; медь 1,6-2,0; кальций 0,001-0,0025; гафний 0,3-0,4; алюминий 0,2-0,3; кобальт 1,2-1,8; железо остальное. Техническим результатом изобретения является повышение прочности чугуна. 1 табл. C 1 C 1 ...

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Номер записи: 95
04-07-2017 дата публикации

Cast iron

Номер: RU2624545C1
Автор: Юлия Алексеевна Щепочкина
Принадлежит: Юлия Алексеевна Щепочкина

FIELD: metallurgy. SUBSTANCE: cast iron contains, mass. %: Carbon 2.5-4.3; Silicon 1.8-2.6; Manganese 0.6-1.0; Phosphorus 0.05-0.1; Aluminium 0.1-0.3; Copper 2.0-2.4; Titanium: 0.01-0.02; Calcium 0.0005-0.001; Antimony 0.003-0.007; Silver 0.05-0.09; Cobalt 1.4-1.8; Rhenium 0.3-0.4; Iron is the rest. EFFECT: increasing cast iron strength. 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 624 545 C1 (51) МПК C22C 37/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ На основании пункта 1 статьи 1366 части четвертой Гражданского кодекса Российской Федерации патентообладатель обязуется заключить договор об отчуждении патента на условиях, соответствующих установившейся практике, с любым гражданином Российской Федерации или российским юридическим лицом, кто первым изъявил такое желание и уведомил об этом патентообладателя и федеральный орган исполнительной власти по интеллектуальной собственности. (21)(22) Заявка: 2016139754, 10.10.2016 10.10.2016 (73) Патентообладатель(и): Щепочкина Юлия Алексеевна (RU) Дата регистрации: 04.07.2017 Приоритет(ы): (22) Дата подачи заявки: 10.10.2016 1482724 A, 10.08.1977. DE 2428821 A, 18.12.1975. RU 2377338 C1, 27.12.2009. RU 2361004 C1, 10.07.2009. (45) Опубликовано: 04.07.2017 Бюл. № 19 Адрес для переписки: 153000, г. Иваново, ул. Варенцовой, 17/1, кв. 7, Щепочкина Ю.А. 2 6 2 4 5 4 5 (56) Список документов, цитированных в отчете о поиске: JP 57054246 A, 31.03.1982. GB R U (24) Дата начала отсчета срока действия патента: (72) Автор(ы): Щепочкина Юлия Алексеевна (RU) 2 6 2 4 5 4 5 R U (57) Формула изобретения Чугун, содержащий углерод, кремний, марганец, фосфор, алюминий, медь, титан, кальций, сурьму и железо, отличающийся тем, что он дополнительно содержит серебро, кобальт и рений при следующем соотношении компонентов, мас. %: углерод 2,5-4,3; кремний 1,8-2,6; марганец 0,6-1,0; фосфор 0,05-0,1; алюминий 0,1-0,3; медь 2,0-2,4; титан 0,01-0,02; кальций 0,0005-0,001; сурьма ...

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Номер записи: 96
31-10-2017 дата публикации

Способ получения чугунных мелющих тел

Номер: RU2634535C1
Автор: Александр Давидович Поволоцкий, Александр Леонидович Шестаков, Александр Михайлович Каркарин, Анатолий Леонидович Розовский, Валерий Александрович Сырых, Василий Ефимович Рощин, Виктор Давидович Поволоцкий, Эдуард Генрихович Кох
Принадлежит: Общество с ограниченной ответственностью &#34;ТЕХНОШАР&#34;

Изобретение относится к производству чугунных изделий, в частности к получению чугунных мелющих тел, и может быть использовано для утилизации отходов медеплавильного производства. Способ включает подготовку шихты, содержащей в своем составе отходы медеплавильного производства, ее плавление с получением чугуна, разливку его в формы и извлечение из них чугунных отливок в виде мелющих тел. В качестве исходных материалов шихты используют смесь из шлака от медеплавильного производства, содержащего медь от 0,7 до 2,4%, и углеродистого восстановителя, из полученной массы изготавливают окатыши, которые высушивают и обжигают в восстановительной среде до получения металлизированных окатышей, которые загружают в дуговую печь и плавят с получением чугуна. Изобретение позволяет снизить стоимость изготовления мелющих шаров из чугуна, содержащего серу в количестве до 2%, при обеспечении их высокой износостойкости. 2 пр., 2 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 634 535 C1 (51) МПК C21C 1/08 (2006.01) C22C 37/00 (2006.01) B02C 17/20 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2016134485, 23.08.2016 (24) Дата начала отсчета срока действия патента: 23.08.2016 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 23.08.2016 (45) Опубликовано: 31.10.2017 Бюл. № 31 Адрес для переписки: 454014, г. Челябинск, а/я 2562 (56) Список документов, цитированных в отчете о поиске: RU 2016077 C1, 15.07.1994. BY 2 6 3 4 5 3 5 R U (54) Способ получения чугунных мелющих тел (57) Реферат: Изобретение относится к производству чугунных изделий, в частности к получению чугунных мелющих тел, и может быть использовано для утилизации отходов медеплавильного производства. Способ включает подготовку шихты, содержащей в своем составе отходы медеплавильного производства, ее плавление с получением чугуна, разливку его в формы и извлечение из них чугунных отливок в виде мелющих тел. В качестве исходных материалов шихты используют ...

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Номер записи: 97
24-01-2018 дата публикации

Cast iron

Номер: RU2642226C1
Автор: Юлия Алексеевна Щепочкина
Принадлежит: Юлия Алексеевна Щепочкина

FIELD: metallurgy. SUBSTANCE: invention relates to the field of ferrous metallurgy, particularly to cast iron compositions, which can be used in machine building. Cast iron contains, by mass %: carbon 3.0–3.5; silicon 2.0–2.5; manganese 1.3–1.5; titanium 0.06–0.12; aluminum 0.2–0.3; copper is 1.3–1.5; phosphorus 0.1–0.15; calcium 0.001–0.002; REM 0.2–0.25; niobium 0.3–0.5; chrome 0.3–0.5; nitrogen 0.0005–0.001; molybdenum 0.3–0.5; vanadium 1.3–1.5; boron 0.05–0.1; iron – the rest. EFFECT: technical result is high heat resistance. 1 cl, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 642 226 C1 (51) МПК C22C 37/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ На основании пункта 1 статьи 1366 части четвертой Гражданского кодекса Российской Федерации патентообладатель обязуется заключить договор об отчуждении патента на условиях, соответствующих установившейся практике, с любым гражданином Российской Федерации или российским юридическим лицом, кто первым изъявил такое желание и уведомил об этом патентообладателя и федеральный орган исполнительной власти по интеллектуальной собственности. (52) СПК (21)(22) Заявка: 2017115129, 27.04.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Щепочкина Юлия Алексеевна (RU) Дата регистрации: 24.01.2018 (56) Список документов, цитированных в отчете о поиске: SU 1079686 A1, 15.03.1984. US Приоритет(ы): (22) Дата подачи заявки: 27.04.2017 20160153078 A1, 02.06.2016. SU 1082855 A1, 18.01.1983. US 9284631 B2, 15.03.2016. GB 1482724 A, 10.08.1977. (54) ЧУГУН (57) Реферат: Изобретение относится к области черной металлургии, в частности к составам чугуна, который может быть использован в машиностроении. Чугун содержит, мас.%: углерод 3,0-3,5; кремний 2,0-2,5; марганец 1,3-1,5; титан 0,06-0,12; алюминий 0,2-0,3; медь 1,3-1,5; фосфор R U 2 6 4 2 2 2 6 Адрес для переписки: 153000, г. Иваново, ул. Варенцовой, 17/1, кв. 7, Щепочкиной Юлии Алексеевне Стр.: 1 C 1 C ...

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Номер записи: 98
29-08-2017 дата публикации

Cast iron

Номер: RU2629406C1
Автор: Юлия Алексеевна Щепочкина
Принадлежит: Юлия Алексеевна Щепочкина

FIELD: metallurgy. SUBSTANCE: cast iron contains, by wt %: carbon 3.0-3.5; silicon 4.5-5.5; manganese 0.6-1.0; aluminium 0.1-0.2; magnesium 0.001-0.002; niobium 0.2-0.7; nickel 1.0-2.0; rhenium 0.08-0.12; boron 0.1-0.3; iron - the rest. EFFECT: cast iron wear resistance is increased. 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 629 406 C1 (51) МПК C22C 37/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ На основании пункта 1 статьи 1366 части четвертой Гражданского кодекса Российской Федерации патентообладатель обязуется заключить договор об отчуждении патента на условиях, соответствующих установившейся практике, с любым гражданином Российской Федерации или российским юридическим лицом, кто первым изъявил такое желание и уведомил об этом патентообладателя и федеральный орган исполнительной власти по интеллектуальной собственности. (21)(22) Заявка: 2016148964, 13.12.2016 13.12.2016 (73) Патентообладатель(и): Щепочкина Юлия Алексеевна (RU) Дата регистрации: 29.08.2017 Приоритет(ы): (22) Дата подачи заявки: 13.12.2016 8257514 B2, 04.09.2012. RU 2562175 C2, 10.09.2015. DE 2428821 A, 18.12.1975. EP 821073 A1, 28.01.1998. (45) Опубликовано: 29.08.2017 Бюл. № 25 2 6 2 9 4 0 6 R U (54) Чугун (57) Реферат: Изобретение относится к области черной металлургии, в частности к составам чугуна, который может быть использован для изготовления станин, шестерен, маховиков, поршневых колец, кулачков, дисков сцепления и других изделий, работающих в условиях трения. Стр.: 1 Чугун содержит, мас. %: углерод 3,0-3,5; кремний 4,5-5,5; марганец 0,6-1,0; алюминий 0,1-0,2; магний 0,001-0,002; ниобий 0,2-0,7; никель 1,0-2,0; рений 0,08-0,12; бор 0,1-0,3; железо - остальное. Техническим результатом изобретения является повышение износостойкости чугуна. 1 табл. C 1 C 1 Адрес для переписки: 153000, г. Иваново, ул. Варенцовой, 17/1, кв. 7, Щепочкина Ю.А. 2 6 2 9 4 0 6 (56) Список документов, цитированных в отчете о поиске: GB 1482724 A, 10.08. ...

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Номер записи: 99
20-12-2016 дата публикации

Cast iron

Номер: RU2605008C1
Автор: Юлия Алексеевна Щепочкина
Принадлежит: Юлия Алексеевна Щепочкина

FIELD: metallurgy. SUBSTANCE: invention relates to metallurgy, particularly to compositions of cast iron, can be used in machine building. Cast iron contains, wt%: carbon 3.0-3.5; silicon 1.5-2.0; manganese 0.6-0.8; aluminium 0.08-0.12; rhenium 0.08-0.12; copper 1.8-2.2; silver 0.005-0.01; iron - balance. EFFECT: technical result is high strength of cast iron. 1 cl, 1 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C22C 37/00 (13) 2 605 008 C1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ На основании пункта 1 статьи 1366 части четвертой Гражданского кодекса Российской Федерации патентообладатель обязуется заключить договор об отчуждении патента на условиях, соответствующих установившейся практике, с любым гражданином Российской Федерации или российским юридическим лицом, кто первым изъявил такое желание и уведомил об этом патентообладателя и федеральный орган исполнительной власти по интеллектуальной собственности. (21)(22) Заявка: 2015140166/02, 21.09.2015 21.09.2015 (73) Патентообладатель(и): Щепочкина Юлия Алексеевна (RU) Приоритет(ы): (22) Дата подачи заявки: 21.09.2015 2 6 0 5 0 0 8 (45) Опубликовано: 20.12.2016 Бюл. № 35 (56) Список документов, цитированных в отчете о поиске: RU 2374352 C1, 27.11.2009. RU 2364654 C1, 20.08.2009. JP 10212545 A, 11.08.1998. JP 2014181356 A, 29.09.2014. RU 2374352 C1,27.11.2009. 2 6 0 5 0 0 8 R U Стр.: 1 C 1 C 1 Адрес для переписки: 153000, г. Иваново, ул. Варенцовой, 17/1, кв. 7, Щепочкина Ю.А. (54) ЧУГУН (57) Реферат: Изобретение относится к области металлургии, в частности к составам чугунов, может быть использовано в машиностроении. Чугун содержит, мас. %: углерод 3,0-3,5; кремний 1,5-2,0; марганец 0,6-0,8; алюминий 0,08-0,12; R U (24) Дата начала отсчета срока действия патента: (72) Автор(ы): Щепочкина Юлия Алексеевна (RU) рений 0,08-0,12; медь 1,8-2,2; серебро 0,005-0,01; железо - остальное. Техническим результатом изобретения является повышение прочности чугуна. 1 табл. ...

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Номер записи: 100