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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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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 15. Отображено 15.
30-04-2014 дата публикации

High-manganese free-cutting brass alloy material and preparation method thereof

Номер: CN103757474A
Автор: DING JIAN, NI SHOUCHUN, LIN QIBIN, GE HAO, XIA YANLEI, YANG PIN
Принадлежит:

The invention relates to a high-manganese free-cutting brass alloy material which contains the following chemical components in percentage by mass: 1.5-1.9% of manganese, 32.5-33.9% of zinc, 0.25-0.29% of As, 0.08-0.12% of Sb and the balance of copper. The alloy has the advantages of high toughness, high wear resistance, favorable corrosion resistance, favorable cutting property due to Sb, no toxicity, no pollution, favorable mechanical properties, favorable brazability, low electric conductivity and low thermal conductivity, and is suitable for electromagnetic four-way reversing valves for refrigeration. When the refining agent is used for casting production, the porosity in the casting is lowered by 1-2 degrees, the oxide inclusion content is at level 2 or so, and the yield is obviously enhanced.

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Номер записи: 1
30-04-2014 дата публикации

Magnesium-bismuth brass alloy material and preparation method thereof

Номер: CN103757476A
Автор: DING JIAN, NI SHOUCHUN, LIN QIBIN, GE HAO, XIA YANLEI, YANG PIN
Принадлежит:

The invention relates to a magnesium-bismuth brass alloy material which contains the following chemical components in percentage by mass: 6.5-5.9% of magnesium, 0.25-0.29% of bismuth, 11.5-11.9% of zinc, 0.04-0.06% of Ta, 1.6-1.8% of Mn, 0.4-0.5% of Be and the balance of copper. The alloy has the characteristics of no toxicity, environment friendliness, free cutting, lower cost than bismuth brass, high-temperature oxidation resistance, higher strength and favorable cold/hot working properties, and can be forged and cast into wires, bars and many other parts; and by reasonably controlling the after-casting treatment temperature and using waste copper as the raw material, the core hardness is basically consistent with the surface hardness, and the alloy quality is uniform. When the refining agent is used for casting production, the porosity in the casting is lowered by 1-2 degrees, the oxide inclusion content is at level 2 or so, and the yield is obviously enhanced.

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Номер записи: 2
30-04-2014 дата публикации

Environmental free-cutting nickel-copper alloy material and preparation method thereof

Номер: CN103757478A
Автор: DING JIAN, NI SHOUCHUN, LIN QIBIN, GE HAO, XIA YANLEI, YANG PIN
Принадлежит:

The invention discloses an environmental free-cutting nickel-copper alloy material, comprising the following chemical elements by mass percent: 0.3-0.4% of iron, 1.9-2.2% of manganese, 0.2-0.4% of silicon, 35-37% of nickel, 0.2-0.4% of Li, 0.06-0.08% of Ba and the balance of copper. The nickel-copper alloy disclosed by the invention has high strength and excellent comprehensive mechanic performance and also has excellent conductivity and good machinability, the cutting force and the cutting temperature are reduced, the service life of a tool is obviously prolonged, the surface roughness of a work-piece is reduced, and the cuttings treatability is improved. A refining agent disclosed by the invention is applied to casting production, the porosity of a casting can be reduced by 1-2 degrees, the oxide inclusion is at about the second grade, and the yield is obviously improved.

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Номер записи: 3
12-03-2014 дата публикации

High-strength alloy steel lining plate material and preparation method thereof

Номер: CN103627968A
Автор: DING JIAN, GE HAO, WANG JUN, XIA YANLEI, YANG PIN, LIU KEZHONG
Принадлежит:

The invention discloses a high-strength alloy steel lining plate material which contains the following chemical elements in percentage by mass: 0.2-0.4% of carbon, 0.2-0.4% of silicon, 0.2-0.4% of manganese, 0.2-0.4% of chromium, 0.2-0.4% of nickel, 0.2-0.4% of zinc, 0.04-0.07% of Bi, less than or equal to 0.04% of S, less than or equal to 0.04% of P and the balance of iron. The alloy steel material disclosed by the invention has excellent mechanical property, high impact toughness, high hardness, good abrasion resistance, low cost and wide market prospect. According to the invention, the waste iron is partially used as a raw material which is refined twice, the heat treatment temperature after casting is reasonably controlled, the raw material is fed in batches, thus the alloy quality is more stable and uniform, and the comprehensive mechanical performance is improved. A refining agent adopted in the invention is applied to casting production, and the yield is obviously increased; and ...

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Номер записи: 4
07-05-2014 дата публикации

Environment-friendly zinc-copper-nickel alloy material and preparation method for same

Номер: CN103773993A
Автор: DING JIAN, NI SHOUCHUN, LIN QIBIN, GE HAO, XIA YANLEI, YANG PIN
Принадлежит:

The invention discloses an environment-friendly zinc-copper-nickel alloy material, which comprises the following chemical components in percentage by mass: 11.5 to 12.9 percent of nickel, 0.6 to 0.9 percent of cobalt, 2.3 to 2.5 percent of manganese, 0.15 to 0.18 percent of iron, 0.05 to 0.09 percent of bismuth, 21.5 to 21.9 percent of zinc, 0.5 to 0.6 percent of Si, 0.03 to 0.05 percent of Sb and the balance of copper. The alloy material contains bismuth, Si and Sb, is easy to cut, low in cost and anticorrosive, and has high comprehensive mechanical performance; after-casting treatment temperature is reasonably controlled, waste copper is used as a raw material, so that the hardness of a core part is substantially consistent with that of the surface, and the alloy material is uniform in quality; the alloy material is applied to the production of rods and wires, and can be used for precision parts, glasses accessories, zippers, keys, optical and clock industries and the like; a refining ...

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Номер записи: 5
26-02-2014 дата публикации

High-temperature resistant and wear-resistant alloy steel lining plate material and preparation method thereof

Номер: CN103602911A
Автор: DING JIAN, GE HAO, WANG JUN, XIA YANLEI, YANG PIN, LIU KEZHONG
Принадлежит:

The invention discloses a high-temperature resistant and wear-resistant alloy steel lining plate material which comprises the following chemical elements in percentage by mass: 0.2-0.4% of carbon, 0.2-0.4% of silicon, 3.5-3.7% of manganese, 0.7-0.9% of chromium, 0.8-1.1% of molybdenum, 1.2-1.4% of vanadium, 0.1-0.15% of lanthanum, 0.04-0.07% of Nb, less than or equal to 0.04% of S, less than or equal to 0.04% of P and the balance of iron. In the lining plate provided by the invention, the alloy steel obtained by adding the elements such as lanthanum, molybdenum and niobium into low-carbon steel has the advantages of high hardness, high strength, good wear resistance, high-temperature resistance, good toughness, good plasticity, corrosion resistance and high cost performance. In the lining plate material disclosed by the invention, the waste iron is partially used as the raw material, secondary refining is performed, the thermal treatment temperature after casting is reasonably controlled ...

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Номер записи: 6
30-04-2014 дата публикации

Corrosion-resistant free-cutting copper alloy material and preparation method thereof

Номер: CN103757465A
Автор: DING JIAN, NI SHOUCHUN, LIN QIBIN, GE HAO, XIA YANLEI, YANG PIN
Принадлежит:

The invention relates to a corrosion-resistant free-cutting copper alloy material which contains the following chemical components in percentage by mass: 0.9-1.2% of bismuth, 3.1-3.4% of tin, 0.2-0.4% of aluminum, 0.9-1.2% of zirconium, 0.04-0.06% of cerium, 0.1-0.2% of silicon, 15.2-16.2% of zinc, 0.2-0.5% of In, 0.05-0.08% of As and the balance of copper. The alloy has the advantages of favorable casting properties, high tensile strength, similar cutting characteristic to lead brass, no toxicity and environment friendliness, and can also be subjected to extrusion, rolling, forging, stretching and other pressure working processes after casting; by adding the tin, cerium and other elements, the alloy has favorable seawater corrosion resistance and favorable electric conductivity; and by reasonably controlling the after-casting treatment temperature and using waste copper as the raw material, the core hardness is basically consistent with the surface hardness, and the alloy quality is uniform ...

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Номер записи: 7
30-04-2014 дата публикации

Free-cutting bismuth-nickel copper alloy material and preparation method thereof

Номер: CN103757481A
Автор: DING JIAN, NI SHOUCHUN, LIN QIBIN, GE HAO, XIA YANLEI, YANG PIN
Принадлежит:

The invention relates to a free-cutting bismuth-nickel copper alloy material which contains the following chemical components in percentage by mass: 2.2-2.4% of manganese, 0.3-0.4% of silicon, 8.5-10.2% of nickel, 0.08-0.12% of Hf, 0.35-0.40% of Bi and the balance of copper. The bismuth, silicon, Hf, manganese and other elements are added to enhance the wear resistance and toughness, obviously improve the cutting characteristic, save the cutting tool and cutting time, enhance the corrosion resistance and avoid lead pollution; and by reasonably controlling the after-casting treatment temperature and using waste copper as the raw material, the core hardness is basically consistent with the surface hardness, and the alloy quality is uniform. When the refining agent is used for casting production, the porosity in the casting is lowered by 1-2 degrees, the oxide inclusion content is at level 2 or so, and the yield is obviously enhanced.

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Номер записи: 8
12-03-2014 дата публикации

Heat-resistant alloy steel liner plate material and preparation method thereof

Номер: CN103627959A
Автор: DING JIAN, GE HAO, WANG JUN, XIA YANLEI, YANG PIN, LIU KEZHONG
Принадлежит:

The invention discloses a heat-resistant alloy steel liner plate material comprising the following chemical element components in percentage by mass: 1.2-1.4% of carbon, 1.2-1.4% of silicon, 2.6-2.8% of manganese, 0.9-1.2% of molybdenum, 0.05-0.08% of copper, 1.2-1.4% of titanium, 0.04-0.07% of Hf, less than or equal to 0.04% of S, less than or equal to 0.04% of P and the balance of iron. The liner plate disclosed by the invention has excellent heat resistance and corrosion resistance, relatively high hardness and wear resistance, and relatively high strength and good toughness at the same time, the wear resistance of the liner plate is improved by more than 2 times as compared with a high manganese steel liner plate, and the performance-price ratio is high. The heat-resistant alloy steel liner plate material disclosed by the invention is prepared by using part of scrap iron as a raw material, performing secondary refining on the raw material, reasonably controlling the heat treatment temperature ...

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Номер записи: 9
30-04-2014 дата публикации

Seawater corrosion resistance complex cupronickel alloy material and preparation method thereof

Номер: CN103757480A
Автор: DING JIAN, NI SHOUCHUN, LIN QIBIN, GE HAO, XIA YANLEI, YANG PIN
Принадлежит:

The invention relates to a seawater corrosion resistance complex cupronickel alloy material, comprising the following chemical elements by mass percent: 0.9-1.2% of silicon, 3.9-4.2% of tin, 12.5-13.2% of nickel, 0.9-1.2% of stibium, 2.4-2.7% of zinc, 0.04-0.06% of W, 0.12-0.16% of Tm and the balance of copper. The seawater corrosion resistance complex cupronickel alloy has high strength of extension, excellent thermal forming performance and dezincification resistance performance, good machinability due to addition of stibium and Tm and excellent seawater corrosion resistance performance due to existence of tin. By reasonably controlling treatment temperature after casting and utilizing waste copper as a raw material, core hardness is basically consistent with surface hardness, the alloy is uniform in quality, the manufacturing process is simple, and the cost is low. A refining agent is used for casting production, porosity of a casting can be reduced by 1-2 degrees, and oxide inclusion ...

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Номер записи: 10
30-04-2014 дата публикации

High-strength free-cutting tin brass alloy material and preparation method thereof

Номер: CN103757475A
Автор: DING JIAN, NI SHOUCHUN, LIN QIBIN, GE HAO, XIA YANLEI, YANG PIN
Принадлежит:

The invention relates to a high-strength free-cutting tin brass alloy material which contains the following chemical components in percentage by mass: 0.9-1.2% of bismuth, 7.3-7.7% of tin, 0.2-0.3% of selenium, 0.2-0.4% of aluminum, 14.3-14.6% of zinc, 0.2-0.25% of La, 5.1-6.3% of Ni, 0.1-0.14% of Sc and the balance of copper. The nickel and aluminum are added to enhance the tensile strength and hardness; by adding the La, Sc and bismuth, the alloy has the advantages of favorable cutting characteristic, favorable electric conductivity and no lead poisoning; by reasonably controlling the after-casting treatment temperature, feeding the raw materials in different batches and using waste copper as the raw material, the core hardness is basically consistent with the surface hardness, and the alloy quality is uniform; and the alloy can be widely used in automobiles, timekeepers, electric appliances, lock making, toys, bathroom accessories and other industries. When the refining agent is used ...

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Номер записи: 11
26-02-2014 дата публикации

Wear-resistant alloy steel lining plate material and preparation method thereof

Номер: CN103602912A
Автор: DING JIAN, GE HAO, WANG JUN, XIA YANLEI, YANG PIN, LIU KEZHONG
Принадлежит:

The invention discloses a wear-resistant alloy steel lining plate material which comprises the following chemical elements in percentage by mass: 0.2-0.4% of carbon, 0.8-1.2% of silicon, 3.6-3.9% of manganese, 1.2-1.4% of chromium, 0.2-0.3% of molybdenum, 0.04-0.07% of As, less than or equal to 0.04% of S, less than or equal to 0.04% of P and the balance of iron. The wear-resistant alloy steel provided by the invention has perfect hardness, strength and toughness; and moreover, the alloy composition is relatively low, the service life is longer than that of high-manganese steel, and the economy and comprehensive mechanical performance are better than those of the high-manganese steel and high-chromium cast iron. In the lining plate material disclosed by the invention, the waste iron is partially used as the raw material, secondary refining is performed, the thermal treatment temperature after casting is reasonably controlled, and the raw material is fed in batches so that the alloy quality ...

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Номер записи: 12
30-04-2014 дата публикации

Lead-free environment-friendly copper-nickel-zinc alloy material and preparation method thereof

Номер: CN103757479A
Автор: DING JIAN, NI SHOUCHUN, LIN QIBIN, GE HAO, XIA YANLEI, YANG PIN
Принадлежит:

The invention relates to a lead-free environment-friendly zinc white copper alloy material which contains the following chemical components in percentage by mass: 3.5-3.9% of manganese, 3.8-4.1% of tin, 17.5-18.9% of nickel, 0.6-0.9% of silicon, 0.25-0.4% of iron, 1.5-1.7% of molybdenum, 0.3-0.5% of tungsten, 0.05-0.09% of cobalt, 5.5-5.9% of zinc, 0.9-1.2% of V, 0.04-0.06% of Ta and the balance of copper. The alloy contains the silicon, manganese and Ta, and thus, has the advantages of favorable cutting characteristic, no toxicity and no harm; the alloy also contains the tungsten, V, molybdenum and cobalt, and thus, has favorable hot working property and high-temperature oxidation resistance; and the copper alloy is suitable for cutting, hot forging and polishing, and is suitable for manufacturing bearings, worm gears, gears and precision parts. When the refining agent is used for casting production, the porosity in the casting is lowered by 1-2 degrees, the oxide inclusion content is ...

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Номер записи: 13
26-02-2014 дата публикации

Wear-resistant alloy steel liner plate material with high strength, and preparation method thereof

Номер: CN103602928A
Автор: DING JIAN, GE HAO, WANG JUN, XIA YANLEI, YANG PIN, LIU KEZHONG
Принадлежит:

The invention discloses a wear-resistant alloy steel liner plate material with high strength. The wear-resistant alloy steel liner plate material comprises the following chemical elements by mass percent: 1.2-1.4% of carbon, 0.9-1.2% of silicon, 3.5-3.7% of manganese, 0.5-0.7% of boron, 2.1-2.3% of magnesium, 1.2-1.4% of tungsten, 0.7-0.9% of molybdenum, 0.04-0.07% of Sb, no more than 0.04% of S, no more than 0.04% of P and the balance of iron. The obtained alloy steel has good hardness, obdurability, distortion resistance, impact resistance, wear-resisting property and high-temperature resistance by using the elements such as tungsten, magnesium, stibium and the like. A part of scrap iron is used as a raw material, so that the alloy is more stable and even in quality by secondary refining, reasonably controlling the thermal treatment temperature after casting, and feeding the raw materials in batches, and the comprehensive mechanical performance is improved. A refining agent disclosed ...

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Номер записи: 14
30-04-2014 дата публикации

Environment-friendly free-cutting zinc white copper alloy material and preparation method thereof

Номер: CN103757473A
Автор: DING JIAN, NI SHOUCHUN, LIN QIBIN, GE HAO, XIA YANLEI, YANG PIN
Принадлежит:

The invention relates to an environment-friendly free-cutting zinc white copper alloy material which contains the following chemical components in percentage by mass: 5.8-6.2% of nickel, 13.5-13.9% of zinc, 0.35-0.38% of stibium, 0.05-0.09% of cerium, 1.2-1.4% of Li, 0.06-0.08% of Ba and the balance of copper. The zinc white copper alloy has the beautiful color of white copper and the excellent working properties of zinc brass; and by adding the stibium, cerium, Li and Ba, the zinc white copper alloy has the advantages of favorable cutting characteristic and favorable electric conductivity. The copper alloy is suitable for manufacturing precision parts in the fields of instruments and meters, medical appliances, daily necessities, communications and the like. When the refining agent is used for casting production, the porosity in the casting is lowered by 1-2 degrees, the oxide inclusion content is lowered by 2 levels or so, and the yield is obviously enhanced.

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Номер записи: 15