METHOD FOR THE MANUFACTURING OF AL-MG-SI AND AL-MG-SI-CU EXTRUSION ALLOYS

Method for the manufacturing of an Al—Mg—Si(—Cu) extrusion alloy, the alloy initially being cast to extrusion billet(s), containing in wt. % 2. Method according to claim 1 ,wherein{'sub': '2', 'the temperature Tis higher than 50° C. below the solvus temperature of the alloy with respect to the hardening elements Si, Mg and Cu.'}3. Method according to claim 1 ,wherein{'sub': 1', '2, 'the billet is cooled monotonically from the temperature Tto the temperature T.'}4. Method according to claim 1 ,wherein{'sub': '2', 'a holding time of up to 20 hours at the temperature Tis applied.'}5. Method according to claim 1 ,wherein,{'sub': '2', 'the temperature Tis below the solvus temperature of the subject alloy, but higher than 450° C.'}6. Method according to claim 1 ,wherein{'sub': 1', '2, 'the average intermediate cooling rate between temperatures Tand the onset of rapid cooling after T: is'}<150° C. per hour but >4° C. per hour.7. Method according to claim 1 ,wherein [{'sub': '2', 'continuous cooling down to temperature T'}, {'sub': '2', 'stepwise cooling down to temperature T'}, {'sub': 2', '2, 'fast cooling to temperature Tand then hold at temperature T'}, {'sub': 3', '2', '2, 'cooling to a temperature Tbelow Tand then reheating to temperature T.'}], 'the intermediate cooling sequence to obtain the average cooling rate can be13. Equipment for facilitating the method according to claim 1 , the equipment being of the batch type including a heating chamber and cooling chamber claim 1 ,wherein{'sub': 2', '3', '2, 'the furnace for heating and holding is provided with means for cooling the billets is to temperature Tor temperature Tand then reheating to temperature T.'}14. Equipment for facilitating the method according to claim 1 , the equipment being of the batch type including a heating chamber and cooling chamber claim 1 ,wherein{'sub': 1', '2, 'the equipment is provided with an intermediate cooling station for cooling from temperature Tto T.'}15. Equipment for facilitating ...

METHOD FOR THE MANUFACTURING OF PRODUCTS WITH ANODIZED HIGH GLOSS SURFACES FROM EXTRUDED PROFILES OF AL-MG-SI OR AL-MG-SI CU EXTRUSION ALLOYS

Method for the manufacturing of products with anodized high gloss surfaces from extruded profiles of Al—Mg—Si or AS-Mg—Si—Cu, where the alloys initially are cast to extrusion billets), containing in wt. % Si: 0.25-1.00 Mg. 0.25-1.00 Fe: 0.00-0.15 Cu: 0.00-0.30 Mn: 0.00-0.20 Cr: 0.00-0.10 Zr: 0.00-0.10 Se: 0.00 -0.10 Zn: 0.00-0.10 Ti: 0.00-0.05., and including incidental impurities and balance A.L a) where the billet is homogenised at a holding temperature between 480° C. and 620° C. and soaked at this temperature for 0-12 hours, where after the billet is subjected to cooling from the homogenisation temperature at a rate of 150° C./h or faster, b) the billet is preheated to a temperature between 400 and 540° C. and extruded preferably to a solid shape profile and cooled rapidly down to room temperature, c) optionally artificially ageing the profile, d) deforming the profile more than 10% by a cold roiling operation, whereafter e) the profile is flash annealed with a healing time of maximum two minutes to a temperature of between 450-530° C. for not more than 5 minutes and subsequently quenched, and f) optionally the profile after flash annealing is further subjected to a cold deforming operation to remove residual stresses from cooling and adjusting dimensional tolerances, and g) the profile is finally aged. 112-. (canceled)13. Method for the manufacturing of products with anodized high gloss surfaces from extruded profiles of Al—Mg—Si or Al—Mg—Si—Cu alloys , where the alloys initially are cast to extrusion billet(s) , containing in wt. %Si: 0.25-1.00Mg: 0.25-1.00Fe: 0.00-0.15Cu: 0.00-0.30Mn: 0.00-0.20Cr: 0.00-0.10Zr: 0.00-0.10Sc: 0.00-0.10Zn: 0.00-0.10Ti: 0.00-0.05, and a) where the billet is homogenised at a holding temperature between 480° C. and 620° C. and soaked at this temperature for 0-12 hours, whereafter the billet subjected to cooling from the homogenization temperature at a rate of 150° C./h or faster,', 'b) the billet is preheated to a temperature ...

Al-Mg-Si ALUMINIUM ALLOY WITH IMPROVED PROPERTIES

Extrudeable Al—Mg—Si aluminium alloy with improved strength, corrosion resistance, crush properties and temperature stability, in particular useful in or close to the front part of vehicles. The composition of the alloy is defined within the following coordinate points of an Mg—Si diagram: a1-a2-a3-a4, where in wt % a1=0.60 Mg, 0.65Si, a2=0.90Mg, 1.0Si, a3=1.05Mg,0.75Si and a4=0.70Mg, 0.50Si and where the alloy has a non-recrystallised grain structure in the extruded profile containing in addition the following alloy components in wt %: Fe up to 0.30 Cu 0.1-0.4 Mn 0.4-1.0 Cr up to 0.25 Zr up to 0.25 and Ti 0.005-0.15 incidental impurities up to 0.1 each and including Zn up to 0.5 with balance Al. 1. An extrudeable Al—Mg—Si aluminium alloy with improved strength , corrosion resistance , crush properties and temperature stability , useful in the front structure of vehicles ,wherein:the composition of the alloy is defined within the following coordinate points of an Mg—Si diagram:a1-a2-a3-a4,where in wt % a1=0.60Mg, 0.65Si, a2=0.90Mg, 1.0Si, a3=1.05Mg, 0.75Si and a4=0.70Mg, 0.50Si, andthe alloy has a non recrystallized grain structure in the extruded profile comprising in addition the following alloy components in wt %:Fe up to 0.30,Cu 0.1-0.4,Mn 0.4-1.0,Cr up to 0.25,Zr up to 0.25,Ti 0.005-0.15 andincidental impurities up to 0.1 each and including Zn up to 0.5, with balance Al.2. The alloy according to claim 1 ,wherein the Mg/Si ratio is between 0.9-1.4.3. The alloy according to claim 1 ,wherein the alloy is defined within the coordinate points b1-b2-b3-b4, where in wt % b1=0.76 Mg, 0.55 Si, b2=1.02 Mg, 0.74 Si, b3=0.90 Mg, 0.91 Si and b4=0.67 Mg, 0.68 Si.4. The alloy according to claim 1 ,wherein the alloy is defined between the coordinate points c1-c2-c3-c4, where in wt % c1=0.80 Mg, 0.59 Si, c2=0.94 Mg, 0.70 Si, c3=0.85 Mg, 0.84 Si and c4=0.72 Mg, 0.71 Si.5. The alloy according to claim 1 ,wherein the Mg/Si ratio is between 1.0-1.3.6. The alloy according to claim 1 ...

Al-Mg-Si ALUMINIUM ALLOY WITH IMPROVED PROPERTIES

Extrudeable Al—Mg—Si aluminium alloy with improved strength, corrosion resistance, crush properties and temperature stability, in particular useful in or close to the front part of vehicles. The composition of the alloy is defined within the following coordinate points of an Mg—Si diagram: a1-a2-a3-a4, where in wt % a1=0.60 Mg, 0.65Si, a2=0.90Mg, 1.0Si, a3=1.05Mg, 0.75Si and a4=0.70Mg, 0.50Si and where the alloy has a non-recrystallised grain structure in the extruded profile containing in addition the following alloy components in wt %: Fe up to 0.30 Cu 0.1-0.4 Mn 0.4-1.0 Cr up to 0.25 Zr up to 0.25 and Ti 0.005-0.15 incidental impurities up to 0.1 each and including Zn up to 0.5 with balance Al. 1. An extrudeable Al—Mg—Si aluminium alloy with improved strength , corrosion resistance , crush properties and temperature stability , useful in the front structure of vehicles ,wherein:the composition of the alloy is defined within the following coordinate points of an Mg—Si diagram:a1-a2-a3-a4,where in wt % a1=0.60Mg, 0.65Si, a2=0.90Mg, 1.0Si, a3=1.05Mg, 0.75Si and a4=0.70Mg, 0.50Si, andthe alloy has a non-recrystallized grain structure in the extruded profile comprising in addition the following alloy components in wt %:Fe up to 0.30,Cu 0.1-0.4,Mn 0.4-1.0,Cr up to 0.25,Zr up to 0.25,Ti 0.005-0.15, andincidental impurities up to 0.1 each and including Zn up to 0.5, with balance Al.2. The alloy according to claim 1 ,wherein the Mg/Si ratio is between 0.9-1.4.3. The alloy according to claim 1 ,wherein the alloy is defined within the coordinate points b1-b2-b3-b4, where in wt % b1=0.76 Mg, 0.55 Si, b2=1.02 Mg, 0.74 Si, b3=0.90 Mg, 0.91 Si and b4=0.67 Mg, 0.68 Si.4. The alloy according to claim 1 ,wherein the alloy is defined between the coordinate points c1-c2-c3-c4, where in wt % c1=0.80 Mg, 0.59 Si, c2=0.94 Mg, 0.70 Si, c3=0.85 Mg, 0.84 Si and c4=0.72 Mg, 0.71 Si.5. The alloy according to claim 1 ,wherein the Mg/Si ratio is between 1.0-1.3.6. The alloy according to claim ...

METHOD FOR THE MANUFACTURING OF EXTRUDED PROFILES THAT CAN BE ANODIZED WITH HIGH GLOSS SURFACES, THE PROFILES BEING EXTRUDED OF AN AGE HARDENABLE ALUMINIUM ALLOY THAT CAN BE RECRYSTALLIZED AFTER COLD DEFORMATION, FOR EXAMPLE A 6XXX OR A 7XXX ALLOY

Method for the manufacturing of extruded profiles that can be anodized with high gloss surfaces, the profiles being extruded of an age hardenable aluminium alloy that can be recrystallized after cold deformation, for example a 6xxx or 7xxx alloy, where the alloy initially is cast to extrusion billet(s), where the billets are homogenized at a holding temperature between 480° C. and 620° C. and soaked at this temperature for 0-12 hours, where after the billets are subjected to cooling from the homogenization temperature at a rate of 150° C./h or faster, a) the billets are preheated to a temperature between 400 and 540° C. and extruded preferably to a solid shape profile and cooled rapidly down to room temperature, b) deforming the profile more than 10% by a cold rolling operation, where after c) the profile is flash annealed with a heating time of maximum two minutes to a temperature of between 400-530° C. and held at this temperature for not more than 5 minutes to obtain an average grain size of about 100 μm or less, and subsequently quenched, d) and the profile is finally aged. 1. Method for the manufacturing of extruded profiles that can be anodized with high gloss surfaces , the profiles being extruded of an age hardenable aluminium alloy that can be recrystallized after cold deformation , for example a 6xxx or a 7xxx alloy , where the alloy initially is cast to extrusion billet(s) , where the billets are homogenized at a holding temperature between 480° C. and 620° C. and soaked at this temperature for 0-12 hours , where after the billets are subjected to cooling from the homogenization temperature at a rate of 150° C./h or faster ,a) the billets are preheated to a temperature between 400 and 540° C. and extruded preferably to a solid shape profile and cooled rapidly down to room temperature,b) deforming the profile more than 10% by a cold rolling operation, where afterc) the profile is flash annealed with a heating time of maximum two minutes to a temperature of ...

Method for and equipment for suppressing discoloration of al-mg products

FIG. 3 to be published with the abstract

ALUMINIUM EXTRUSION ALLOY SUITABLE FOR ETCHED AND ANODIZED COMPONENTS

Aluminium alloys suitable for etched and anodized components, in particular aluminum extrusion alloys of the types containing Magnesium and Silicon, which after being extruded to any wide variety of forms for different applications such as house buildings and other building applications is subjected to etching in a conventional alkaline etching bath and subsequent anodizing, wherein the relation between Cu and Zn is controlled to avoid preferential grain etching and the ratio of Cu/Zn is below 1. 1. Aluminium alloys suitable for etched and anodized components , in particular aluminum extrusion alloys of the types containing Magnesium and Silicon , which after being extruded to any wide variety of forms for different applications such as house buildings and other building applications is subjected to etching in a conventional alkaline etching bath and subsequent anodizing , comprising in wt %:Si: 0.20-0.90Mg: 0.30-0.90Fe: 0.10-0.40Mn: max 0.20,Ti: max 0.10,and including others or incidental impurities each in the amount of 0.05 wt % max, the total of others and impurities being in the amount of 0.15 wt % max and balance Al, wherein the alloy further comprises Cu and Zn, wherein the content of Cu and Zn of the alloy in wt-% is inside the composition range described by the area defined by points a1, a2, a3, a4, a5 of a Cu—Zn diagram, whereina1 corresponds to 0.025 wt-% Cu and 0.025 wt-% Zn,a2 corresponds to 0.05 wt-% Cu and 0.05 wt-% Zn,a3 corresponds to 0.05 wt-% Cu and 0.1 wt-% Zn,a4 corresponds to 0.005 wt-% Cu and 0.1 wt-% Zn, anda5 corresponds to 0.005 wt-% Cu and 0.025 wt-% Zn.2. Alloy according to claim 1 , wherein the content of Cu and Zn of the alloy in wt-% is inside the composition range described by the area defined by points b1 claim 1 , b2 claim 1 , b3 claim 1 , b4 claim 1 , b5 of a Cu—Zn diagram claim 1 , whereinb1 corresponds to 0.025 wt-% Cu and 0.025 wt-% Zn,b2 corresponds to 0.04 wt-% Cu and 0.045 wt-% Zn,b3 corresponds to 0.04 wt-% Cu and 0.07 wt-% ...

Method for producing a heat treatable aluminium alloy with improved mechanical properties

Method for producing structural components from heat treatable aluminum alloys based on extruded material, in particular AA 6xxx series alloys, the components having improved crush properties and being particular applicable in crash zones of vehicles, such as longitudinals and crash boxes, the method including the following steps: a. casting a billet from said alloy by DC casting, b. homogenizing the cast billet, c. forming a profile from the billet by extrusion, preferably a hollow section d. optionally, separate solution heat treatment, e. quenching the profile down to room temperature after the forming step and the possible separate solutionising step, f. stretching the extruded or the separate solutionised profile to obtain at least 1.5% plastic deformation, g. artificially ageing the profile.

Method for the manufacturing of products with anodized high gloss surfaces from extruded profiles of al-mg-si or al-mg-si cu extrusion alloys

Arrangement in connection with cooling equipment for cooling billets

An arrangement in connection with cooling equipment for cooling billets (9), preferably of aluminium, comprising a housing (2) with openings (3) for axial passage of the billet through the housing as weel as a cooling ring (4) arranged inside the housing with supply lines (6) for a cooling medium. The billet (9) is designed to have cooling medium supplied to it in order to achieve uniform cooling, i.e. without a temperature gradient around the full circumference of the billet. In order to achieve this, it is expedient for the cooling medium to be designed to be supplied uniformly around the circumference of the billet (9) while the billet is designed to rotate.

Method for the production of alloys from eutectic alloy systems

The present invention concerns procedures for producing an alloy from a eutectic alloy system, preferably an Al alloy, in order to form a workpiece such as a billet, ingot or slug for rolling or extrusion purposes by, for example, producing an Al-Mg-Si alloy, which can be precipitation-hardened, which alloy, after having been heated to a temperature above the solubility temperature of phases which can be precipitated, is kept at this temperature until the phases have dissolved and is cooled at a cooling rate which is rapid enough to avoid most of the precipitation of the said phases and slow enough to avoid most of the precipitation of dispersoid particles. At cooling rates within this interval, most coarse phases which have a reductive effect on the processing rate can be avoided and, at the same time, the number of small dispersoid particles which have a reductive effect on the mechanical properties after hardening is limited.

Aluminium alloy containing magnesium and silicon

Screw extruder for continuous extrusion of materials with high viscosity

Screw extruder for the continuous extrusion of materials with high viscosity, in particular metals such as aluminium and its alloys. The extruder includes an Archimedes screw (1 ) rotationally provided within liner (2) of a screw housing (4) with an inlet (11 ) for the feeding of the material to be extruded, a compacting or extrusion chamber (5) and an extrusion die assembly with a die (6) which forms the shape of the desired extruded product (7). The design of the screw (1 ) and liner (2) is such that the required compaction takes place at the down-stream end of the screw towards the extrusion chamber (5) corresponding to up to 540° of the rotation of the screw, or up to 1,5 turn of the screw flight length, and that the solid plug of metal thus formed at the end of the screw and extrusion chamber (5) is restricted from rigid rotation to obtain the required compaction and extrusion pressure.

Treatment process of aluminium alloy

The present invention relates to a treatment process of aluminium alloy containing 0.5 to 2.5 percent by weight of alloying mixture based on magnesium and silicon wherein the molar ratio of Mg/Si ranges within 0.70 and 1.25, the amount of Si being approximately 1/3 of the amount of iron, manganese and chromium present in the alloy in percent by weight and the balance being made up of aluminium, unavoidable impurities and other alloying agents, which alloy after cooling has been submitted to homogenizing, preheating before extrusion, extrusion and ageing, which ageing takes place at temperatures between 160 and 220 degC, wherein the treatment process of the present invention is characterized in that the ageing after cooling of the extended product is performed as a dual rate ageing operation, including a first stage in which the extrusion is heated with a heating rate at least 100 degC/hour to a temperature between 100 to 170 degC, a second stage in which the extrusion is heated with a heating rate between 5 and 50 degC/hour to the final hold temperature between 160 and 220 degC wherein the total ageing cycle is performed within a period of 3 to 24 hours.

Screw extruder for continuous extrusion of materials with high viscosity

Screw extruder for the continuous extrusion of materials with high viscosity, in particular metals such as aluminium and its alloys. The extruder includes an Archimedes screw (1 ) rotationally provided within liner (2) of a screw housing (4) with an inlet (11 ) for the feeding of the material to be extruded, a compacting or extrusion chamber (5) and an extrusion die assembly with a die (6) which forms the shape of the desired extruded product (7). The design of the screw (1 ) and liner (2) is such that the required compaction takes place at the down-stream end of the screw towards the extrusion chamber (5) corresponding to up to 540° of the rotation of the screw, or up to 1,5 turn of the screw flight length, and that the solid plug of metal thus formed at the end of the screw and extrusion chamber (5) is restricted from rigid rotation to obtain the required compaction and extrusion pressure.

Method for the treatment of aluminium alloy containing magnesium and silicon

Aluminium alloy contains 0.5 - 2.5 % by weight of an alloying mixture of magnesium and silicon, in which the molar ratio of Mg/Si is between 0.70 and 1.25, the alloy optionally containing an additional amount of Si equal to approximately 1/3 of the amount of Fe, Mn and Cr present in the alloy, and the rest being made up of aluminium, unavoidable impurities and other alloying agents. The alloy after cooling has been submitted to homogenising, preheating before extrusion, and ageing, which ageing takes place after extrusion at final hold temperature between 160 and 220 °C. The ageing after cooling of the extruded product is performed as a dual rate ageing operation including a first stage in which the extrusion is heated with a heating rate above 100 °C/hour to a temperature between 100 and 170 °C, a second stage in which the extrusion is heated with a heating rate between 5 and 50 °C/hour to the final hold temperature between 160 and 220 °C. The total ageing cycle is performed in a time between 3 and 24 hours.

Method for the manufacturing of products with anodized high gloss surfaces from extruded profiles of al-mg-si or al-mg-si cu extrusion alloys

Method for the manufacturing of products with anodized high gloss surfaces from extruded profiles of Ai-Mg-Si or AS-Mg-Si-Cu, where the alloys initially are cast to extrusion billet(s), containing in wt.% Si: 0,25-1,00 Mg: 0,25-1,00 Fe: 0,00-0,15 Cu: 0,00-0,30 Mn: 0,00 -- 0,20 Cr: 0,00-0,10 Zr: 0,00 -0,10 Sc: 0.00 -0,10 Zn: 0,00-0,10 Ti: 0,00-0,05., and Including incidental impurities and balance A.L a) where the billet is homogenised at a holding temperature between 480°C and 620°C and soaked at this temperature for 0-12 hours, where after the billet is subjected to cooling from the homogenisation temperature at. a rate of 150°C/h or faster, b) the billet is preheated to a temperature between 400 and 540°C and extruded preferably to a solid shape profile and cooled rapidly down to room temperature, c) optionally artificially ageing the profile, d) deforming the profile more than 10% by a cold roiling operation, whereafter e) the profile is flash annealed with a heating time of maximum two minutes to a temperature of between 450 ~ 530 °C for not more than 5 minutes and subsequently quenched, and f) optionally the profile after flash annealing is further subjected to a cold deforming operation to remove residua! stresses from cooling and adjusting dimensional tolerances, and g) the profile is finally aged.

Method for the manufacturing of al-mg-si and al-mg-si-cu extrusion alloys

Method for the manufacturing of an Al-Mg-Si(-Cu) extrusion alloy, the alloy initially being cast to extrusion billet(s), containing in wt.% Si: 0,20 - 1,50 Mg: 0,25 - 1,50 Fe: 0,05 - 0,50 Cu: 0,00 - 1,00 Mn: 0,00 - 1,00 Cr: 0,00 - 0,50 Zn: 0,00 - 0,50 Ti: 0,00 - 0,20, and including incidental impurities and balance Al, The billet is, depending on its alloy composition and application, heated to the desired homogenisation holding temperature T1 between 520°C and 620°C and held at said temperature for a required time, where after the billet is subjected to cooling from the homogenisation temperature T1 to a temperature T2, or cooling to a temperature T3 lower than T2 and then reheating to T2, before onset of cooling at a rate of 150°C/h or faster. The homogenisation temperature T2 is at least 10°C lower than the temperature T1, and the time between the temperature T1 and the onset of cooling at a rate of 150°C/h or faster starting at the temperature T2, is minimum 30 minutes and maximum 20 hours.

Screw extruder for continuous extrusion of materials with high viscosity

Screw extruder for the continuous extrusion of materials with high viscosity, in particular metals such as aluminium and its alloys. The extruder includes an Archimedes screw (1 ) rotationally provided within liner (2) of a screw housing (4) with an inlet (11 ) for the feeding of the material to be extruded, a compacting or extrusion chamber (5) and an extrusion die assembly with a die (6) which forms the shape of the desired extruded product (7). The design of the screw (1 ) and liner (2) is such that the required compaction takes place at the down-stream end of the screw towards the extrusion chamber (5) corresponding to up to 540° of the rotation of the screw, or up to 1,5 turn of the screw flight length, and that the solid plug of metal thus formed at the end of the screw and extrusion chamber (5) is restricted from rigid rotation to obtain the required compaction and extrusion pressure.

Aluminium extrusion alloy suitable for etched and anodized components

Aluminium alloys suitable for etched and anodized components, in particular aluminum extrusion alloys of the types containing Magnesium and Silicon, which after being extruded to any wide variety of forms for different applications such as house buildings and other building applications is subjected to etching in a conventional alkaline etching bath and subsequent anodizing, wherein the relation between Cu and Zn is controlled to avoid preferential grain etching and the ratio of Cu/Zn is below 1.

Method for producing an aluminum alloy

In a method for producing an aluminum alloy, for instance to make a billet or ingot for extrusion purposes, and which may consist of a structural hardening Al-Mg-Si-alloy, the production comprises the following steps: casting an ingot or billet, homogenizing the billet, cooling of the homogenized billet, reheating the billet to a temperature in the alloy above the solubility temperature in the precipitated phases in the Al matrix, for instance the solubility temperature for the Mg-Si-phases in a billet made of an Al-Mg-Si-alloy, holding the billet at the temperature above the solubility temperature for the precipitated phases in the Al matrix, for instance the Mg-Si-phases in a billet made of an Al-Mg-Si-alloy, until the phases are dissolved, quick cooling of the billet to the desired extrusion temperature to prevent new precipitation of said phases in the alloy structure, or that the billet is extruded at said solubility temperature.[., until the phases are dissolved.].. The above mentioned contributes to improve the extrudability for the billet, for instance by making it possible to increase the extrusion speed essentially.

Treatment process of aluminium alloy

Aluminium alloy containing 0,5 - 2,5 % by weight on alloying mixture of Magnesium and Silicon, the molar ratio of Mg / Si lying between 0,70 and 1,25, an additional amount of Si equal to approximately 1/3 of the amount of Fe, Mn and Cr present in the alloy, and the rest being made up of aluminium, unavoidable impurities and other alloying agents, which alloy after cooling has been submitted to homogenising, preheating before extrusion, extrusion and ageing, which ageing takes place at temperatures between 160 and 220 DEG C. The ageing after cooling of the extruded product is performed as a dual rate ageing operation including a first stage in which the extrusion is heated with a heating rate above 30 DEG C/hour to a temperature between 100 - 170 DEG C, a second stage in which the extrusion is heated with a heating rate between 5 and 50 DEG C/hour to the final hold temperature between 160 and 220 DEG C and in that the total ageing cycle is performed in a time between 3 and 24 hours.

Al-Mg-Si alloy suited for extrusion

Arrangement in connection with cooling equipment for cooling billets

An arrangement in connection with cooling equipment for cooling billets (9), preferably of aluminium, comprising a housing (2) with openings (3) for axial passage of the billet through the housing as weel as a cooling ring (4) arranged inside the housing with supply lines (6) for a cooling medium. The billet (9) is designed to have cooling medium supplied to it in order to achieve uniform cooling, i.e. without a temperature gradient around the full circumference of the billet. In order to achieve this, it is expedient for the cooling medium to be designed to be supplied uniformly around the circumference of the billet (9) while the billet is designed to rotate.

aluminum Alloy

Aluminium extrusion alloy suitable for etched and anodized components

Aluminium extrusion alloy suitable for etched and anodized components

Method for and equipment for suppressing discoloration of Al-Mg products

Method for and equipment for suppressing discoloration of al-mg products

Method and means for suppressing discoloration during thermal treatment of a product of a magnesium containing aluminium alloy, the alloy contains in wt.% Mg: 0,45 ¨ 12,0, with a preferred range of 0,45-6,0 wt%. The product, being either an extrusion billet, a sheet ingot, a cast product, or a forged product is heated to a temperature T where it is prone to surface discoloration and oxidation, wherein during the thermal treatment it is exposed to a suppressing atmosphere comprising 0,5-5,0% CO2 gas with a preference for 0,5 - 1,5 % CO2 gas.

Verfahren zur herstellung einer aluminiumlegierung, die silicium und magnesium enthält

Heat treatable aluminium alloy with improved mechanical properties and method for producing it

The present invention relates to a method for processing extrusion billets or billets produced from an aluminium 6xxx alloy to finished or semi-finished products such as profiles or blanks, comprising a) Homogenizing the extrusion ingot or billetb) soft annealing operation followed by preheating and extrusion of the billet to form aprofile or blank, whereafter the profile or blank is exposed to a solutionising operation,where the 6xxx alloy contains Mg in the range 0.85-1.15 wt % and Si in the range0.60-0.75 wt%, Fe in the range 0-0.5 wt%, Cu in the range 0-0.30 wt%, Cr in therange 0-0.10 wt%, Mn in the range 0-0.20 wt%, Zn in the range 0-0.5 wt%, Ti in therange 0-0.15 wt%, V in the range 0-0.15 wt% and other elements not specified belowin the range 0-0.05 wt%, with balance Al, the Mg/Sieff ratio of the alloy being above1.6, where Sieff = Si - ? wt%(Fe+Cr+Mn+Zr).

Stopy glinu do wytłaczania odpowiednie dla elementów wytrawianych i anodowanych

Wyciskany profil stopu aluminium al-mg-si o polepszonych właściwościach

Anordnung einer vorrichtung zum kühlen von knüppeln

processo de envelhecimento de ligas de alumìnio.

Magnesium und silizium enthaltende aluminiumlegierung

Aldring av aluminiumlegering som inneholder magnesium og silikon

Varmeherdbar Al-Mg-Si aluminiumslegering som etter forming har gjennomgått en aldringsprosess, hvilken aldring, etter kjøling av det ekstruderte produkt, er utført i et første trinn hvor det ekstruderte produktet varmes med en temperatur over 30 °C/time til en temperatur mellom 100-170 °C og et andre trinn hvor produktet varmes med en temperatur mellom 5 og 50 "C/time til den endelige holdetemperatur mellom 160 og 220 °C, og at den totale aldringssyklusen er gjennomført på mellom 3 og 24 timer.

Aluminium alloy containing magnesium and silicon

An ageing process capable of producing an aluminum alloy with better mechanical properties than possible with traditional ageing procedures. The ageing process employs a dual rate heating technique that comprises a first stage in which the aluminum alloy is heated at a first heating rate to a temperature between 100 and 170° C. and a second stage in which the aluminum alloy is heated at a second heating rate to a hold temperature of 160 to 220° C. The first heating rate is at least 100° C./hour and the second heating rate is 5 to 50° C./hour. The entire ageing process is performed in a time of 3 to 24 hours.

Aluminium alloy containing magnesium and silicon

The invention relates to a heat treatable Al-Mg-Si aluminium alloy which after shaping has been submitted to an ageing process, wherein the ageing after cooling of the extruded product is performed in a first stage in which the extrusion is heated with a heating rate above 30°C/hour to a temperature between 100 - 170°C, a second stage in which the extrusion is heated with a heating rate between 5 and 50°C/hour to the final hold temperature between 160 and 220°C and in that the total ageing cycle is performed in a time between 3 and 24 hours.

Teplom spracovateľná Al-Mg-Si zliatina

Aldring av aluminiumlegering som inneholder magnesium og silikon

Aldring av aluminiumlegering som inneholder magnesium og silisium

Varmeherdbar AI-Mg-Si aluminiumslegering som etter forming har gjennomgått en aldringsprosess, hvilken aldring, etter kjøling av det ekstruderte produkt, er utført i et første trinn hvor det ekstruderte produktet varmes med en temperatur over 30 0C/time til en temperatur mellom 100-170 °C og et andre trinn hvor produktet varmes med en temperatur mellom 5 og 50 "C/time til den endelige holdetemperatur mellom 160 og 220 °C, og at den totale aldringssyklusen er gjennomført på mellom 3 og 24 timer.

Álblendi sem inniheldur magnesíum og kísil

Procedimiento para producir una aleacion de aluminio que contiene magnesio y silicio.

Un proceso para producir una aleación termoprocesada de aluminio Al-Mg-Si que, tras ser modelada, es sometida a un proceso de envejecimiento que se lleva a cabo después de enfriar el producto extruido en un primer estadio, en el cual la extrusión se calienta a una temperatura entre 100 y 170ºC y un segundo estadio, en el cual la extrusión se calienta hasta la temperatura final mantenida entre 160 y 220ºC, caracterizado porque la velocidad de calentamiento del primer estadio es de al menos 100ºC/hora y del segundo estadio oscila entre 5 y 50ºC/hora y porque la totalidad del ciclo de envejecimiento se lleva a cabo durante un período que dura entre 3 y 24 horas.

Starenje aluminijumske legure koja sadrži magnezijum i silicijum

Pronalazak se odnosi na Al-Mg-Si aluminijumsku leguru pogodnu za termičku obradu koja je posle dobijanja oblika podvrgnuta procesu starenja, gde je starenje posle hladjenja izvučenog proizvoda izvedeno u prvom koraku u kome je izvučeni proizvod zagrejan brzinom zagrevanja iznad 30В°C/h do temperature izmedju 100 i 170В°C, u drugom koraku u kome je izvučeni proizvod zagrejan brzinom zagrevanja izmedju 5 i 50В°C/h do krajnje temperature izmedju 3 i 24 sata.

アルミニウム及びケイ素を含有するアルミニウム合金の処理方法

【課題】時効に要する時間を短縮すると共に、機械的性質及び押出し性の両方に優れたアルミニウム合金を与えるアルミニウム合金の処理方法を提供する。 【解決手段】マグネシウム及びケイ素の合金混合物０．５重量％〜２．５重量％（Ｍｇ／Ｓｉのモル比は０．７０〜１．２５である）；並びにアルミニウムで形成される残部を含むアルミニウム合金が、冷却後に、均質化、押出し前の予熱、及び時効（該時効は、押出し後に、１６０℃〜２２０℃の最終保持温度に２段階時効操作として行われる）にかけられるアルミニウム合金の処理方法において、時効は、押出し材が１００℃／時を超える加熱速度で１００℃〜１７０℃の温度に加熱される第１段階と、押出し材が５〜５０℃／時の加熱速度で最終保持温度に加熱される第２段階とを含み、加熱開始から最終保持温度での保持終了までに要する時間が３〜２４時間の間であることを特徴とするアルミニウム合金の処理方法とする。 【選択図】 なし

Aluminium alloy containing magnesium and silicon

Postupak starenja al-mg-si legure pogodne za termičku obradu

Postupak starenja Al-Mg-Si legure pogodne za termičku obradu, tako da se posle dobijanja oblika i posle hlađenja već izvučenih komada starenje obavlja na taj način što se u prvom koraku izvučeni komad zagreva do temperature između 100°C i 170°C, a u drugom koraku se izvučeni komad zagreva do krajnje održavane temperature između 160°C i 220°C, naznačen time što je brzina zagrevanja u prvom koraku najmanje 100°C/h a u drugom koraku između 5 i 50°C/h, i što se ceo ciklus starenja izvodi se u vremenskom trajanju između 3 i 24 sata. Prijava sadrži još 8 zavisnih patentnih zahteva.

Liga de aluminio al-mg-si tratavel termicamente

Postupak za obradu aluminijumske legure koja sadrži magnezijum i silicijum

Postupak za obradu aluminijumske legure koja sadrži magnezijum i silicijum i to 0.5 – 2.5 % težinskih legirajuće mešavine magnezijuma i silicijuma, gde je molarni odnos Mg/Si između 0.70 i 1.25, dodatna količina Si jednaka približno 1/3 količine Fe, Mn i Cr prisutnih u leguri u % težinskih, a ostatak čine aluminijum, neizbežne nečistoće i drugi legirajući agenti: što se legura posle hlađenja podvrgava homogenizaciji, predgrevanju pre izvlačenja, izvlačenju i starenju, pre čemu se starenje odvija na temperaturama između 160 i 220°C, naznačen time, što starenje posle hlađenja izvučenog proizvoda obuhvata prvi korak u kome se izvučeni proizvod zagreva brzinom zagrevanja iznad 30°C/h do temperature između 100 i 170°C i drugi korak u kome se izvučeni proizvod zagreva brzinom zagrevanja između 5 i 50°C/h do krajnje temperature držanja i što je ukupan ciklus starenja izveden u vremenu između 3 i 24 sata. Prijava sadrži još 9 zavisnih patentnih zahteva.

Method for producing a heat treatable aluminium alloy with improved mechanical properties

Method for producing structural components from heat treatable aluminum alloys based on extruded material, in particular AA 6xxx series alloys, the components having improved crush properties and being particular applicable in crash zones of vehicles, such as longitudinals and crash boxes, the method including the following steps: a. casting a billet from said alloy by DC casting, b. homogenizing the cast billet, c. forming a profile from the billet by extrusion, preferably a hollow section d. optionally, separate solution heat treatment, e. quenching the profile down to room temperature after the forming step and the possible separate solutionising step, f. stretching the extruded or the separate solutionised profile to obtain at least 1.5% plastic deformation, g. artificially ageing the profile.

Aleación de extrusión de aluminio adecuada para componentes grabados y anodizados

Aleaciones de aluminio adecuadas para componentes grabados y anodizados, en particular aleaciones de extrusión de aluminio de los tipos que contienen magnesio y silicio, que después de ser extruidas en una amplia variedad de formas para diferentes aplicaciones, tales como construcciones de viviendas y otras aplicaciones de construcción, se someten a grabado en un método convencional. baño de grabado alcalino y posterior anodizado, donde la relación entre Cu y Zn se controla para evitar el grabado preferencial de grano y la relación Cu/Zn es inferior a 1. (Traducción automática con Google Translate, sin valor legal)

Al-Mg-Si ALLOY SUITED FOR EXTRUSION

Aluminium alloy containing Mg and Si, in particular useful for extrusion purposes containing in wt%.: Mg 0,3 - 0,5; Si 0,35 - 0,6; Mn 0,02 - 0,08; Cr 0,05; Zn 0,15; Cu 0,1; Fe 0.08 - 0,28 and in addition grain refining elements up to 0,1 wt% and incidental impurities up to 0,15 wt%. The manganese (Mn), within the specified limits, has an additional positive effect on the extrudability of an AlMgSi alloy. In addition to promoting the transformation of the AlFeSi intermetallic phases, AlMnFeSi dispersoid particles are formed during homogenisation. These particles are acting as nucleation sites for Mg2Si particles during cooling after homogenisation. In a high quality billet the Mg2Si particles formed during cooling after homogenisation should easily dissolve during the preheating and the extrusion operation before the material reach the die opening.

Al-Mg-Si alloy suited for extrusion

Aluminum alloy containing Mg and Si, in particular useful for extrusion purposes containing in wt %: Mg 0.3-0.5 Si 0.35-0.6  Mn 0.02-0.08 Cr 0.05 Zn 0.15 Cu 0.1  Fe 0.08-0.28 and in addition grain refining elements up to 0.1 wt % and incidental impurities up to 0.15 wt %. The manganese (Mn), within the specified limits, has an additional positive effect on the extrudability of an AlMgSi alloy. In addition to promoting the transformation of the AlFeSi intermetallic phases, AlMnFeSi dispersoid particles are formed during homogenization. These particles are acting as nucleation sites for Mg 2 Si particles during cooling after homogenization. In a high quality billet the Mg 2 Si particles formed during cooling after homogenization should easily dissolve during the preheating and the extrusion operation before the material reach the die opening.

Al-Mg-Si ALLOY SUITED FOR EXTRUSION

Aluminium alloy containing Mg and Si, in particular useful for extrusion purposes containing in wt%.: Mg 0,3 - 0,5; Si 0,35 - 0,6; Mn 0,02 - 0,08; Cr 0,05; Zn 0,15; Cu 0,1; Fe 0.08 - 0,28 and in addition grain refining elements up to 0,1 wt% and incidental impurities up to 0,15 wt%. The manganese (Mn), within the specified limits, has an additional positive effect on the extrudability of an AlMgSi alloy. In addition to promoting the transformation of the AlFeSi intermetallic phases, AlMnFeSi dispersoid particles are formed during homogenisation. These particles are acting as nucleation sites for Mg2Si particles during cooling after homogenisation. In a high quality billet the Mg2Si particles formed during cooling after homogenisation should easily dissolve during the preheating and the extrusion operation before the material reach the die opening.

Al-Mg-Si alloy suited for extrusion

Verfahren zur herstellung einer aluminiumlegierung, die silicium und magnesium enthält

Heat treatable aluminium alloy with improved mechanical properties and method for producing it

The present invention relates to a method for processing extrusion billets or billets produced from an aluminium 6xxx alloy to finished or semi-finished products such as profiles or blanks, comprising a) Homogenizing the extrusion ingot or billetb) soft annealing operation followed by preheating and extrusion of the billet to form aprofile or blank, whereafter the profile or blank is exposed to a solutionising operation,where the 6xxx alloy contains Mg in the range 0.85-1.15 wt % and Si in the range0.60-0.75 wt%, Fe in the range 0-0.5 wt%, Cu in the range 0-0.30 wt%, Cr in therange 0-0.10 wt%, Mn in the range 0-0.20 wt%, Zn in the range 0-0.5 wt%, Ti in therange 0-0.15 wt%, V in the range 0-0.15 wt% and other elements not specified belowin the range 0-0.05 wt%, with balance Al, the Mg/Si eff ratio of the alloy being above1.6, where Si eff = Si - ⅓ wt%(Fe+Cr+Mn+Zr).

Liga de alumìnio al-mg-si tratável termicamente

"LIGA DE ALUMINIO Al-Mg-Si TRATáVEL TERMICAMENTE". A invenção refere-se a uma liga de alumìnio AI-Mg-Si tratável termicamente a qual após ser formada foi submetida a um processo de envelhecimento, onde o envelhecimento depois do resfriamento do produto extrudado é executado em um primeiro estágio no qual a extrusão é aquecida com uma velocidade de aquecimento acima de 30<198>C/hora até uma temperatura entre 100- 170<198>C, um segundo estágio no qual a extrusão é aquecida com uma velocidade de aquecimento entre 5 e 50<198>C/hora até a temperatura final mantida entre 100 e 220<198>C e no qual o ciclo total de envelhecimento é executado em um tempo entre 3 e 24 horas.

Legura aluminijuma koja sadrži magnezijum i silicijum

Aluminijumska legura koja sadrži težinski 0.5-2.5% legirajuće mešavine magnezijuma i silicijuma, molarnog odnosa Mg/Si izmedju 0.7 i 1.25, dodatna količina Si jednaka je približno 1/3 količine Fe, Mn i Cr prisutnih u leguri, a ostatak sadržaja je aluminijum, neizbežne nečistoće i drugi legirajući agensi, koja legura je posle hladjenja podvrgnuta homogenizaciji, predgrevanju pre izvlačenja, izvlačenju i starenju, gde se starenje odvija na temperaturama izmedju 160 i 220В°C. Starenje posle hladjenja izvučenog proizvoda se izvodi kao dvobrzinska operacija starenja koja uključuje prvi korak u kome se izvučeni deo zagreva brzinom zagrevanja iznad 30В°C/h do temperature izmedju 100 i 170В°C, drugi korak u kome se izvučeni deo zagreva brzinom zagrevanja izmedju 5 i 50В°C/h do krajnje temperature koja se održava izmedju 160 i 220В°C a ceo ciklus starenja se izvodi u vremenu izmedju 3 i 24 sata.

Method and equipment for cooling profiles after extrusion

A 6xxx alloy for extrusion with improved properties and a process for manufacturing extruded products

The present invention relates to an Al-Mg-Si aluminium alloy comprising in wt%:Mg: 0.45-1.2Si: 0.40-1.0Ti: 0.05-0.20V: 0.05-0.15Cu: < 0.30Mn: < 0.30Cr < 0.15Zr < 0.15Fe < 0.50Zn < 0.50the rest being aluminium and inevitable impurities, wherein the content of Ti + V is 0.10-0.30, the Sieff/Mg ratio being <1.0,having improved ductility and crush properties with good energy absorption, corrosion resistance and temperature stability, and which is particularly useful for structural components in crash exposed areas in vehicles.

Fremgangsmaate for fremstilling av en aluminiumslegering.

Al—Mg—Si aluminium alloy with improved properties

Extrudeable Al—Mg—Si aluminum alloy with improved strength, corrosion resistance, crush properties and temperature stability, in particular useful in or close to the front part of vehicles. The composition of the alloy is defined within the following coordinate points of an Mg—Si diagram: a1-a2-a3-a4, where in wt % a1=0.60 Mg, 0.65Si, a2=0.90Mg, 1.0Si, a3=1.05Mg, 0.75Si and a4=0.70Mg, 0.50Si and where the alloy has a non-recrystallized grain structure in the extruded profile containing in addition the following alloy components in wt %: Fe up to 0.30 Cu 0.1-0.4 Mn 0.4-1.0 Cr up to 0.25 Zr up to 0.25 and Ti 0.005-0.15 incidental impurities up to 0.1 each and including Zn up to 0.5 with balance Al.

Screw extruder for continuous extrusion of materials with high viscosity

A screw extruder for the continuous extrusion of materials with high viscosity, in particular metals such as aluminum and its alloys. The extruder includes an Archimedes screw ( 1 ) rotationally provided within a liner ( 2 ) of a screw housing ( 4 ) having an inlet ( 11 ) for the feeding of the material to be extruded, a compacting or extrusion chamber ( 5 ) and an extrusion die assembly with a die ( 6 ) which forms the shape of the extruded product ( 7 ). The required compaction takes place at the down-stream end of the screw towards the extrusion chamber ( 5 ) corresponding to up to 540° of the rotation of the screw, or up to 1.5 turns of the screw flight length. The solid plug of metal formed at the end of the screw and extrusion chamber ( 5 ) is restricted from rigid rotation to obtain the required compaction and extrusion pressure.