CN102373390A - Uniformization technology of special-purposed aluminum alloy cast rods used in forging rotating hubs - Google Patents
Uniformization technology of special-purposed aluminum alloy cast rods used in forging rotating hubs Download PDFInfo
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- CN102373390A CN102373390A CN2010102537022A CN201010253702A CN102373390A CN 102373390 A CN102373390 A CN 102373390A CN 2010102537022 A CN2010102537022 A CN 2010102537022A CN 201010253702 A CN201010253702 A CN 201010253702A CN 102373390 A CN102373390 A CN 102373390A
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- aluminum alloy
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- duraluminum
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Abstract
The invention discloses a uniformization technology of special-purposed aluminium alloy cast rods used in forging rotating hubs. The method comprises steps that: tops and tails of cast aluminum alloy cast rods are processed through cutting treatments; the cast aluminum alloy cast rods are positioned in a material rack, wherein the spaces between the aluminum alloy cast rods are larger than 50mm; the aluminum alloy cast rods on the material rack are positioned in a box-type resistance uniformization furnace with a powder of 800kw, and the aluminum alloy cast rods are subject to a uniformization treatment, wherein the temperature in the uniformization furnace is controlled at 570+-4 DEG C, and a temperature maintaining time is no less than 8 hours; the aluminum alloy cast rods processed through a uniformized annealing treatment is rapidly transported into a cooling chamber by using a special-purposed trolley, and are cooled, wherein a transporting time is no longer than 10min; forced cooling is carried out by using a blower, and the aluminum alloy cast rods are cooled to a temperature below 300 DEG C within 30min; when the temperature of the aluminum alloy cast rods is lower than 300 DEG C, a spray-cooling method is carried out for improving the cooling rate, until the temperature of the aluminum alloy cast rods is reduced to room temperature; when the temperature of the aluminum alloy cast rods reaches room temperature, the aluminum alloy cast rods are fetched from the cooling chamber; ultrasonic flaw detection is carried out upon the aluminum alloy cast rods, and then the processing upon the aluminum alloy cast rods is finished.
Description
Technical field
The present invention relates to a kind of forging spinning roller hub dedicated aluminium alloy and cast excellent homogenization process, relate to the homogenizing treatment process that a kind of automobile is forged spinning roller hub dedicated aluminium alloy casting bar material specifically, belong to duraluminum casting bar material production technical field.
Background technology
Wheel hub is a vitals of automobile, and its quality quality directly has influence on the performance and the aesthetic measure of automotive performance.The production technique of automotive hub, very strict to its performance requriements of taking turns hub material, the wheel hub of producing not only requires to have rotoflector performance preferably, but also must have good impelling strength and good abrasion resistance etc.In recent years, the most of reflectal wheel hub that adopts of high-grade automobile both domestic and external.
The reflectal wheel hub in process of production, and is very high to the requirement of duraluminum casting bar material, the production technique that the performance of duraluminum casting rod and quality will directly have influence on the reflectal wheel hub.At present, the main semi-continuous casting method that adopts of duraluminum casting rod is produced, this method be with molten aluminium alloy liquid behind mold; Adopt the moulding of water forced cooling method; The duraluminum speed of cooling is fast, and the velocity of diffusion of alloying element is less than crystallization velocity, and this is a kind of non-equilibrium crystallization.There is the problem of two aspects in this traditional made duraluminum casting rod of non-equilibrium crystallization: the one, because the pressure of water cooling, making the casting rod is that vertical section or xsect all exist the even phenomenon of inhomogeneous cooling, causes casting rod and has certain casting stress; The 2nd, non-equilibrium crystallization can cause the aluminum alloy chemically uneven components, promptly so-called segregation phenomena.Because the existence of these two problems, make next step the forging process comparison difficulty that becomes, and forge and screw out the wheel hub mechanical property of coming and be difficult to satisfy the national standard requirement.Therefore, the casting rod must carry out the homogenization process processing before forging is revolved.Homogenization process is exactly that the duraluminum casting is excellent under hot conditions, through insulation, eliminates the ununiformity of its casting stress and intragranular chemical ingredients.The selection of homogenization process temperature is very important, and temperature is too high, can surpass the burning temperature of alloy, and alloy property can worsen at once, becomes waste product; Temperature is low excessively, and the purpose of homogenizing can't realize fully.
Summary of the invention
The purpose of this invention is to provide a kind of forging spinning roller hub dedicated aluminium alloy and cast excellent homogenization process.Adopting this homogenization process is that the excellent forging process of duraluminum casting provides good basis, and the duraluminum casting rod of producing thus has higher wear resisting property and good cutting performance, and tensile strength, ys, unit elongation all improve a lot; The forging spinning roller hub that adopts this duraluminum casting rod to produce, in light weight, good looking appearance, long service life can be widely used in automotive field.
In order to achieve the above object, the present invention adopts following technical scheme to realize.
Forge spinning roller hub dedicated aluminium alloy and cast excellent homogenization process:
End and the afterbody of the duraluminum that at first will cast casting rod cut processing, and then duraluminum is cast the rod bin of packing into, and duraluminum is cast distance apart between the rod greater than 50mm; Excellent the inserting of duraluminum casting that will be contained in then on the bin carried out the homogenizing processing in the box resistance homogenizing stove that power is 800kw, the temperature in the homogenizing stove is controlled at 570 ± 4 ℃, and its soaking time was not less than 8 hours; Duraluminum casting rod use special car after homogenizing annealing is handled is transferred to rapidly and carries out processing under cooling in the cooling room, is not more than 10min its transfer time; Use blower fan to force cooling, in the 30min duraluminum is cast rod and be cooled to below 300 ℃, duraluminum is cast excellent temperature and is lower than after 300 ℃, re-uses the water smoke method of cooling and improves rate of cooling, until reducing to the temperature of duraluminum casting rod consistent with room temperature; Duraluminum is cast after excellent temperature reaches room temperature, shifts out cooling room again, and after using ultrasonic equipment to carry out UT to detect, duraluminum casting rod promptly disposes.
The present invention mainly has following beneficial effect:
1, adopting this homogenization process is that the excellent forging process of duraluminum casting provides good basis, and the duraluminum casting rod of producing thus has higher wear resisting property and good cutting performance, and tensile strength, ys, unit elongation all improve a lot;
2, the forging spinning roller hub that adopts this duraluminum casting rod to produce, in light weight, good looking appearance, long service life can be widely used in automotive field.
Description of drawings
No accompanying drawing.
Below in conjunction with embodiment the present invention is made further detailed description.
Embodiment
Embodiment
Forge spinning roller hub dedicated aluminium alloy and cast excellent homogenization process:
End and the afterbody of the duraluminum that will cast casting rod cut processing, and then duraluminum is cast the rod bin of packing into, and duraluminum is cast distance apart between the rod greater than 50mm; Excellent the inserting of duraluminum casting that will be contained in then on the bin carried out the homogenizing processing in the box resistance homogenizing stove that power is 800kw, the temperature in the homogenizing stove is controlled at 570 ± 4 ℃, and its soaking time was not less than 8 hours; Duraluminum casting rod use special car after homogenizing annealing is handled is transferred to rapidly and carries out processing under cooling in the cooling room, is not more than 10min its transfer time; Use blower fan to force cooling, in the 30min duraluminum is cast rod and be cooled to below 300 ℃, duraluminum is cast excellent temperature and is lower than after 300 ℃, re-uses the water smoke method of cooling and improves rate of cooling, until reducing to the temperature of duraluminum casting rod consistent with room temperature; Duraluminum is cast after excellent temperature reaches room temperature, shifts out cooling room again, and after using ultrasonic equipment to carry out UT to detect, duraluminum casting rod promptly disposes.
Claims (1)
1. forge spinning roller hub dedicated aluminium alloy and cast excellent homogenization process, it is characterized in that: end and the afterbody of the duraluminum casting rod that at first will cast cut processing, and then duraluminum is cast the rod bin of packing into, and duraluminum is cast distance apart between the rod greater than 50mm; Excellent the inserting of duraluminum casting that will be contained in then on the bin carried out the homogenizing processing in the box resistance homogenizing stove that power is 800kw, the temperature in the homogenizing stove is controlled at 570 ± 4 ℃, and its soaking time was not less than 8 hours; Duraluminum casting rod use special car after homogenizing annealing is handled is transferred to rapidly and carries out processing under cooling in the cooling room, is not more than 10min its transfer time; Use blower fan to force cooling, in the 30min duraluminum is cast rod and be cooled to below 300 ℃, duraluminum is cast excellent temperature and is lower than after 300 ℃, re-uses the water smoke method of cooling and improves rate of cooling, until reducing to the temperature of duraluminum casting rod consistent with room temperature; Duraluminum is cast after excellent temperature reaches room temperature, shifts out cooling room again, and after using ultrasonic equipment to carry out UT to detect, duraluminum casting rod promptly disposes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102537022A CN102373390A (en) | 2010-08-07 | 2010-08-07 | Uniformization technology of special-purposed aluminum alloy cast rods used in forging rotating hubs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102537022A CN102373390A (en) | 2010-08-07 | 2010-08-07 | Uniformization technology of special-purposed aluminum alloy cast rods used in forging rotating hubs |
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| Publication Number | Publication Date |
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| CN102373390A true CN102373390A (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102537022A Pending CN102373390A (en) | 2010-08-07 | 2010-08-07 | Uniformization technology of special-purposed aluminum alloy cast rods used in forging rotating hubs |
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| CN (1) | CN102373390A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274454A (en) * | 2015-09-22 | 2016-01-27 | 无锡海特铝业有限公司 | Aluminum alloy cast bar homogenization process special for extruding automobile steering control arm bars |
| CN109355605A (en) * | 2018-12-10 | 2019-02-19 | 昆山市超群金属制品有限公司 | A kind of manufacturing method of aluminium bar homogenization |
| CN111660067A (en) * | 2020-06-03 | 2020-09-15 | 宁波自由者汽车部件有限公司 | Hub machining method |
| CN115584407A (en) * | 2022-11-29 | 2023-01-10 | 昆明冶金研究院有限公司 | Efficient preparation method of high-performance Al-Zn-Mg-Cu aluminum alloy for forging components |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016607A (en) * | 2006-09-06 | 2007-08-15 | 中铝西南铝板带有限公司 | Homogenization heat treatment method of aluminum alloy ingot casting for pop-top can body |
-
2010
- 2010-08-07 CN CN2010102537022A patent/CN102373390A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016607A (en) * | 2006-09-06 | 2007-08-15 | 中铝西南铝板带有限公司 | Homogenization heat treatment method of aluminum alloy ingot casting for pop-top can body |
Non-Patent Citations (2)
| Title |
|---|
| 刘道春: "铝合金轮毂奔向汽车的未来", 《有色金属加工》 * |
| 黄彩江等: "铝合金热处理设备及工艺研究", 《黑龙江科技信息》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274454A (en) * | 2015-09-22 | 2016-01-27 | 无锡海特铝业有限公司 | Aluminum alloy cast bar homogenization process special for extruding automobile steering control arm bars |
| CN109355605A (en) * | 2018-12-10 | 2019-02-19 | 昆山市超群金属制品有限公司 | A kind of manufacturing method of aluminium bar homogenization |
| CN111660067A (en) * | 2020-06-03 | 2020-09-15 | 宁波自由者汽车部件有限公司 | Hub machining method |
| CN111660067B (en) * | 2020-06-03 | 2022-07-12 | 宁波自由者汽车部件有限公司 | Hub machining method |
| CN115584407A (en) * | 2022-11-29 | 2023-01-10 | 昆明冶金研究院有限公司 | Efficient preparation method of high-performance Al-Zn-Mg-Cu aluminum alloy for forging components |
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Application publication date: 20120314 |