CN103614599A - Production method of aluminum alloy for rail-vehicle bogie shaft box body - Google Patents
Production method of aluminum alloy for rail-vehicle bogie shaft box body Download PDFInfo
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- CN103614599A CN103614599A CN201310711475.7A CN201310711475A CN103614599A CN 103614599 A CN103614599 A CN 103614599A CN 201310711475 A CN201310711475 A CN 201310711475A CN 103614599 A CN103614599 A CN 103614599A
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Abstract
The invention provides a production method of an aluminum alloy for a rail-vehicle bogie shaft box body. The production method comprises the following steps of preparing the following raw materials for the aluminum alloy in percentage by weight: less than 0.12 percent of Si, less than 0.15 percent of Fe, more than or equal to 2.0 percent and less than or equal to 2.6 percent of Cu, less than 0.10% of Mn, 1.9 to 2.6 percent of Mg, more than or equal to 0.08 percent and less than or equal to 0.15 percent of Zr, more than or equal to 5.7 percent and less than or equal to 6.7 percent of Zn, less than 0.06 percent of Ti, less than 0.15 percent of impurities and the balance of Al; and melting and ingoting the aluminum alloy raw material. By adopting the production method of the aluminum alloy for the rail-vehicle bogie shaft box body, the tensile strength, the yield strength and the elongation rate of a bogie shaft box body produced through the method are high, and the mechanical performance requirement of the bogie shaft box body can be met.
Description
Technical field
The present invention relates to aluminium alloy technical field, relate in particular to a kind of rail vehicle truck axle box aluminium alloy production method.
Background technology
Along with scientific and technical development, high ferro is widely applied in each city.The continuous speed-raising of rail vehicle, has proposed more and more higher requirement to the safe operation of vehicle, and wherein, the quality of rail vehicle truck axle box has very important effect to the safe operation of vehicle.
In prior art, for the metallic substance of rail vehicle truck axle box, tensile strength, yield strength, unit elongation are poor, can not meet the mechanical property requirements of rail vehicle truck axle box when high-speed cruising.
Therefore, how to meet the requirement of high ferro bogie axle casing antagonism tensile strength, yield strength and unit elongation, become those skilled in the art's important technological problems to be solved.
Summary of the invention
The invention provides a kind of rail vehicle truck axle box aluminium alloy production method, the tensile strength of the aluminium alloy obtaining by the method, yield strength and unit elongation are higher, can meet the mechanical property requirements of high ferro bogie axle casing.
A kind of rail vehicle truck axle box aluminium alloy production method provided by the invention, comprising:
Press metal mass percent Si < 0.12%, Fe < 0.15%, 2.0%≤Cu≤2.6%, Mn < 0.10%, Mg is 1.9%～2.6%, 0.08%≤Zr≤0.15%, 5.7%≤Zn≤6.7%, Ti < 0.06%, impurity < 0.15% and surplus are that Al prepares aluminium alloy stock;
Described aluminium alloy stock is melted and ingot casting processing.
Preferably, in described aluminium alloy stock, press metal mass percent Si≤0.06%, Fe≤0.1%, 2.0%≤Cu≤2.4%, Mg is 2.0%～2.4%, 0.08%≤Zr≤0.14%, 5.8%≤Zn≤6.5%, Ti < 0.05%, impurity < 0.15%, surplus is Al.
Adopt aluminium alloy production method provided by the invention, the bogie of car axle box forming, tensile strength sigma b >=the 485MPa that is parallel to its grain direction, yield strength σ s >=415MPa, unit elongation δ >=7%, is not parallel to the tensile strength sigma b >=460MPa of its grain direction, yield strength σ s >=385MPa, unit elongation δ >=4%, therefore, this bogie of car axle box provided by the invention can meet mechanical property requirements.
Embodiment
This embodiment provides a kind of rail vehicle truck axle box aluminium alloy production method, and the tensile strength of the aluminium alloy obtaining by the method, yield strength and unit elongation are higher, can meet the mechanical property requirements of high ferro bogie axle casing.
Below in conjunction with specific embodiment, the inventive method is described in detail.
Embodiment 1
Table 1
The aluminium alloy stock forming according to metal quality per-cent in table 1, through fusing and ingot casting, process, the aluminum alloy materials forming, while being processed into bogie axle casing, be parallel to the tensile strength sigma b=506MPa of its grain direction, yield strength σ s=451MPa, unit elongation δ=20%, be not parallel to the tensile strength sigma b=486MPa of its grain direction, yield strength σ s=433MPa, unit elongation δ=18%.Therefore, the axle box that this alloy material is processed into, meet the tensile strength sigma b >=485MPa that is parallel to its grain direction, yield strength σ s >=415MPa, unit elongation δ >=7%, be not parallel to the tensile strength sigma b >=460MPa of its grain direction, yield strength σ s >=385MPa, the mechanical property requirements of unit elongation δ >=4%.
Embodiment 2
Table 2
The aluminium alloy stock forming according to metal quality per-cent in table 2, through fusing and ingot casting, process, the aluminum alloy materials forming, while being processed into bogie axle casing, be parallel to the tensile strength sigma b=511MPa of its grain direction, yield strength σ s=448MPa, unit elongation δ=31%, be not parallel to the tensile strength sigma b=492MPa of its grain direction, yield strength σ s=420MPa, unit elongation δ=16%.Therefore, the axle box that this alloy material is processed into, meet the tensile strength sigma b >=485MPa that is parallel to its grain direction, yield strength σ s >=415MPa, unit elongation δ >=7%, be not parallel to the tensile strength sigma b >=460MPa of its grain direction, yield strength σ s >=385MPa, the mechanical property requirements of unit elongation δ >=4%.
Embodiment 3
Table 3
The aluminium alloy stock forming according to metal quality per-cent in table 3, through fusing and ingot casting, process, while being processed into bogie axle casing, the tensile strength sigma b=532MPa that is parallel to its grain direction, yield strength σ s=465MPa, unit elongation δ=42%, is not parallel to the tensile strength sigma b=511MPa of its grain direction, yield strength σ s=446MPa, unit elongation δ=31%.Therefore, the axle box that this alloy material is processed into, meet the tensile strength sigma b >=485MPa that is parallel to its grain direction, yield strength σ s >=415MPa, unit elongation δ >=7%, be not parallel to the tensile strength sigma b >=460MPa of its grain direction, yield strength σ s >=385MPa, the mechanical property requirements of unit elongation δ >=4%.
Embodiment 4
Table 4
The aluminium alloy stock forming according to metal quality per-cent in table 4, through fusing and ingot casting, process, through fusing and ingot casting, process, while being processed into bogie axle casing, be parallel to the tensile strength sigma b=530MPa of its grain direction, yield strength σ s=455MPa, unit elongation δ=46%, be not parallel to the tensile strength sigma b=521MPa of its grain direction, yield strength σ s=440MPa, unit elongation δ=33%.Therefore, the axle box that this alloy material is processed into, meet the tensile strength sigma b >=485MPa that is parallel to its grain direction, yield strength σ s >=415MPa, unit elongation δ >=7%, be not parallel to the tensile strength sigma b >=460MPa of its grain direction, yield strength σ s >=385MPa, the mechanical property requirements of unit elongation δ >=4%.
Above a kind of rail vehicle truck axle box provided by the present invention is described in detail by aluminium alloy production method, for one of ordinary skill in the art, thought according to the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (2)
1. a rail vehicle truck axle box aluminium alloy production method, is characterized in that, comprising:
Press metal mass percent Si < 0.12%, Fe < 0.15%, 2.0%≤Cu≤2.6%, Mn < 0.10%, Mg is 1.9%～2.6%, 0.08%≤Zr≤0.15%, 5.7%≤Zn≤6.7%, Ti < 0.06%, impurity < 0.15% and surplus are that Al prepares aluminium alloy stock;
Described aluminium alloy stock is melted and ingot casting processing.
2. rail vehicle truck axle box aluminium alloy production method according to claim 1, it is characterized in that, in described aluminium alloy stock, by metal mass percent Si≤0.06%, Fe≤0.1%, 2.0%≤Cu≤2.4%, Mg is 2.0%～2.4%, 0.08%≤Zr≤0.14%, 5.8%≤Zn≤6.5%, Ti < 0.05%, impurity < 0.15%, surplus is Al.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310711475.7A CN103614599A (en) | 2013-12-20 | 2013-12-20 | Production method of aluminum alloy for rail-vehicle bogie shaft box body |
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| CN201310711475.7A CN103614599A (en) | 2013-12-20 | 2013-12-20 | Production method of aluminum alloy for rail-vehicle bogie shaft box body |
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| CN103614599A true CN103614599A (en) | 2014-03-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723490A (en) * | 2015-04-30 | 2018-02-23 | 高旋 | A kind of manufacture method of transmission case of automobile casing |
| CN111661156A (en) * | 2020-06-05 | 2020-09-15 | 福建祥鑫股份有限公司 | High-strength aluminum alloy light truck crossbeam and manufacturing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05132733A (en) * | 1990-07-31 | 1993-05-28 | Korea Advanced Inst Of Sci Technol | High-strength aluminum alloy for welding |
| CN101831579A (en) * | 2010-06-02 | 2010-09-15 | 东北轻合金有限责任公司 | Preparation method of large-size aluminum alloy ingot |
-
2013
- 2013-12-20 CN CN201310711475.7A patent/CN103614599A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05132733A (en) * | 1990-07-31 | 1993-05-28 | Korea Advanced Inst Of Sci Technol | High-strength aluminum alloy for welding |
| CN101831579A (en) * | 2010-06-02 | 2010-09-15 | 东北轻合金有限责任公司 | Preparation method of large-size aluminum alloy ingot |
Non-Patent Citations (1)
| Title |
|---|
| 郑念庆: "高速列车用7050超高强铝合金的研究", 《中国学位论文全文数据库》, 31 December 2009 (2009-12-31), pages 21 - 25 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723490A (en) * | 2015-04-30 | 2018-02-23 | 高旋 | A kind of manufacture method of transmission case of automobile casing |
| CN111661156A (en) * | 2020-06-05 | 2020-09-15 | 福建祥鑫股份有限公司 | High-strength aluminum alloy light truck crossbeam and manufacturing method thereof |
| CN111661156B (en) * | 2020-06-05 | 2021-08-13 | 福建祥鑫股份有限公司 | High-strength aluminum alloy light truck crossbeam and manufacturing method thereof |
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Application publication date: 20140305 |