CN102758156B - Thermal treatment method of Al-Zn-Mg-Cu based aluminum alloy rim - Google Patents
Thermal treatment method of Al-Zn-Mg-Cu based aluminum alloy rim Download PDFInfo
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Abstract
The invention belongs to the field of alloys, and in particular relates to a thermal treatment method of an Al-Zn-Mg-Cu based aluminum alloy rim. The thermal treatment method comprises the following steps: S1, carrying out an extrusion process and on-line water penetration and quenching; S2, processing and reshaping; S3, carrying out indenting treatment; and S4, ageing. Processing and reshaping comprise the following steps: S2.1, forming a bent circle; S2.2, welding; S2.3, mechanically reshaping; and S2.4, mechanically polishing. The indenting treatment comprises the following steps: S3.1, regressing; and S3.2 indenting. According the thermal treatment method of the Al-Zn-Mg-Cu based aluminum alloy rim, the total process time is greatly shortened, a rejection rate of the indenting process is greatly reduced, the integrated process time of the rim is greatly saved, the production efficiency is improved, meanwhile, after regression treatment, a product has no bad performance.
Description
Technical field
The invention belongs to the alloy field, be specifically related to a kind of Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method.
Background technology
High strength alumin ium alloy is the characteristic because of its high strength, low weight in fields such as automobile, traffic, engineering structures, obtains applying more and more widely.The Al-Zn-Mg-Cu cording that is associated the gold exploitation based on Al-Zn-Mg has higher intensity, better erosion resistance, and in fields such as energy efficiencies, effect is outstanding.Its main strengthening phase of Al-Zn-Mg-Cu line aluminium alloy is MgZn
2, its timeliness strengthening phase is separated out order for α phase (supersaturated solid solution) → GP district → η phase (MgZn
2) → η phase (MgZn
2), can reach different performance requriementss by different thermal treatment process.Premenstruum research, be placed on short-term heating cooling rapidly higher temperature (lower than the alloy solid solution treatment temp) under through the alloy of low temperature aging, and its hardness will drop to immediately and is similar during just quenching so.Cooling rapidly after 200 ℃～250 ℃ Short Time Heatings after Al-Zn-Mg-Cu line aluminium alloy natural aging, its performance can drop to the state of firm quenching.
Original technical process:
1. wheel rim section bar product extruding, extrusion process is with the F mode control, air-cooled;
2. extruded section completes curved round moulding, welding;
3. solution treatment together with moulding wheel rim and same batch extruded section, processing parameter is 480 ℃, is incubated 2 hours;
4. the shaping of moulding wheel rim, polishing, pcketing, statistics pcketing operation fraction defective;
5. moulding wheel rim and with timeliness together with batch extruded section, the aging technique parameter is 120 ℃, insulation 6h → 165 ℃, insulation 8h test section bar mechanical property, test shaping ring hardness.
The problem that current technical process runs into is that after alloy natural aging, intensity rises, and affects wheel rim pcketing operation lumber recovery.
Summary of the invention
After the invention provides a kind of solution alloy natural aging, intensity rises, and affects the Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method of wheel rim pcketing operation lumber recovery.
For solving the problems of the technologies described above, Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method of the present invention, comprise the steps: S1, and extrusion process, wear water quenching online; S2, machining and shaping; S3, pcketing is processed; S4, timeliness.
Described machining and shaping comprises: S2.1, curved round moulding; S2.2, welding; S2.3, mechanical shaping; S2.4, mechanical polishing.
Described pcketing is processed and comprised: S3.1 returns; S3.2, pcketing.
Described extrusion process extruding temperature out is at 520 ℃～540 ℃, and extrusion speed is greater than 7m/min.Described quenching temperature is at 520 ℃-540 ℃.The temperature of described recurrence is 240 ℃ ± 5 ℃, is incubated 5 minutes～6 minutes, enters water cooling.Described aging technique parameter is 120 ℃, is incubated 6 hours to 165 ℃, is incubated 8 hours.
Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method of the present invention has larger shortening to total operation time, and pcketing operation condemnation factor is greatly reduced, greatly saved the whole activity time of wheel rim, improved production efficiency, simultaneously, the product performance after regression treatment are without bad performance.
The accompanying drawing explanation
Fig. 1 is Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method schema of the present invention.
Embodiment
Below in conjunction with accompanying drawing, Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method of the present invention is described in further detail.
As shown in Figure 1, Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method of the present invention, comprise the steps: S1, and extrusion process, wear water quenching online; S2, machining and shaping; S3, pcketing is processed; S4, timeliness.
Machining and shaping comprises: S2.1, curved round moulding; S2.2, welding; S2.3, mechanical shaping; S2.4, mechanical polishing.
Pcketing is processed and comprised: S3.1 returns; S3.2, pcketing.
Extrusion process extruding temperature out is at 520 ℃～540 ℃, and extrusion speed is greater than 7m/min.Quenching temperature is at 520 ℃-540 ℃.The temperature returned is 240 ℃ ± 5 ℃, is incubated 5 minutes～6 minutes, enters water cooling.The aging technique parameter is 120 ℃, is incubated 6 hours to 165 ℃, is incubated 8 hours.
Whole heat treatment step step is:
1. wheel rim section bar product extruding, control the extruding temperature out 520 ℃～540 ℃ extruding, and extruding is online adopts shrend cooling;
2. extruded section completes curved round moulding, welding, shaping, polishing process, retains with batch extruded section;
3. the moulding wheel rim after returning together with batch extruded section, and the pcketing of moulding wheel rim, add up the pcketing fraction defective;
4. moulding wheel rim and, with timeliness together with batch extruded section, the aging technique parameter is 120 ℃, is incubated 6 hours h to 165 ℃, be incubated 8 hours test section bar mechanical properties, test shaping ring hardness.
Table 1 compares with an original technique performance perameter for the present invention:
| The operation title | Tensile strength Mpa | Yield strength Mpa | Unit elongation % | Hardness |
| Former technique | 415440 | 390415 | 1113 | 125135HV |
| The present invention | 412443 | 393420 | 1113 | 128136HV |
Table 1
Table 2 is that the present invention and the every working procedure parameter of former technique compare:
Table 2
Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method of the present invention has larger shortening to total operation time, and pcketing operation condemnation factor is greatly reduced, greatly saved the whole activity time of wheel rim, improved production efficiency, simultaneously, the product performance after regression treatment are without bad performance.
Below the preferred embodiment of the invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all modification be equal to or replacement under the prerequisite without prejudice to the invention spirit, and the modification that these are equal to or replacement all are included in the application's claim limited range.
Claims (5)
1.Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method, is characterized in that, comprises the steps:
S1, extrusion process, wear water quenching online;
S2, machining and shaping;
S3, pcketing is processed; Described pcketing is processed and comprised: S3.1 returns; S3.2, pcketing; The temperature of wherein said recurrence is 240 ℃ ± 5 ℃, is incubated 5 minutes～6 minutes, enters water cooling;
S4, timeliness.
2. Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method according to claim 1, is characterized in that, described machining and shaping comprises:
S2.1, curved round moulding;
S2.2, welding;
S2.3, mechanical shaping;
S2.4, mechanical polishing.
3. Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method according to claim 1, is characterized in that, described extrusion process extruding temperature out is at 520 ℃～540 ℃, and extrusion speed is greater than 7m/min.
4. Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method according to claim 1, is characterized in that, described quenching temperature is at 520 ℃-540 ℃.
5. Al-Zn-Mg-Cu line aluminium alloy wheel rim heat treating method according to claim 1, is characterized in that, described aging technique parameter is 120 ℃, is incubated 6 hours to 165 ℃, is incubated 8 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210262084.7A CN102758156B (en) | 2012-07-26 | 2012-07-26 | Thermal treatment method of Al-Zn-Mg-Cu based aluminum alloy rim |
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|---|---|---|---|
| CN201210262084.7A CN102758156B (en) | 2012-07-26 | 2012-07-26 | Thermal treatment method of Al-Zn-Mg-Cu based aluminum alloy rim |
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| CN102758156A CN102758156A (en) | 2012-10-31 |
| CN102758156B true CN102758156B (en) | 2014-01-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105945079A (en) * | 2016-05-20 | 2016-09-21 | 淮安和通汽车零部件有限公司 | Bending forming process applied to aluminum product |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4589177A (en) * | 1982-02-25 | 1986-05-20 | Teksid S.P.A. | Method of manufacturing, without welding, light alloy rims for motor vehicles |
| CN1831167A (en) * | 2005-03-07 | 2006-09-13 | 东北轻合金有限责任公司 | Hub alloy made of aluminium alloy and its making method |
| DE102010001749A1 (en) * | 2010-02-10 | 2011-08-11 | ZF Friedrichshafen AG, 88046 | Wheel driving arrangement for vehicle i.e. car, has planetary drive coupled with wheel hub at output side and with drive motor at drive side, where cooling body is detachably fixed in area of planetary drive |
| CN102392160A (en) * | 2011-11-17 | 2012-03-28 | 张洁 | Aluminium alloy for electric bicycle wheel rim |
-
2012
- 2012-07-26 CN CN201210262084.7A patent/CN102758156B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4589177A (en) * | 1982-02-25 | 1986-05-20 | Teksid S.P.A. | Method of manufacturing, without welding, light alloy rims for motor vehicles |
| CN1831167A (en) * | 2005-03-07 | 2006-09-13 | 东北轻合金有限责任公司 | Hub alloy made of aluminium alloy and its making method |
| DE102010001749A1 (en) * | 2010-02-10 | 2011-08-11 | ZF Friedrichshafen AG, 88046 | Wheel driving arrangement for vehicle i.e. car, has planetary drive coupled with wheel hub at output side and with drive motor at drive side, where cooling body is detachably fixed in area of planetary drive |
| CN102392160A (en) * | 2011-11-17 | 2012-03-28 | 张洁 | Aluminium alloy for electric bicycle wheel rim |
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| CN102758156A (en) | 2012-10-31 |
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Address after: 201702, Shanghai Qingpu District, Shanghai Qing Ping highway 2058 Patentee after: Shanghai Yousheng Aluminum Co., Ltd Address before: 201702, Shanghai Qingpu District, Shanghai Qing Ping highway 2058 Patentee before: SHANGHAI UNISON ALUMINUM PRODUCTS Co.,Ltd. |