CN101984126A - Rolling treatment process for 6xxx series aluminum alloy for automobile - Google Patents
Rolling treatment process for 6xxx series aluminum alloy for automobile Download PDFInfo
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- CN101984126A CN101984126A CN 201010577346 CN201010577346A CN101984126A CN 101984126 A CN101984126 A CN 101984126A CN 201010577346 CN201010577346 CN 201010577346 CN 201010577346 A CN201010577346 A CN 201010577346A CN 101984126 A CN101984126 A CN 101984126A
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Abstract
The embodiment of the invention discloses a rolling treatment process for 6xxx series aluminum alloy for an automobile. The rolling treatment process comprises the following steps: 201) performing quenching treatment on an aluminum ingot; 202) uniformly heating the aluminum ingot subjected to the quenching treatment in a heating furnace at 540-580 DEG C for 13-15 h; and 203) rolling the heated aluminum ingot. In the rolling treatment process provided in the embodiment of the invention, the homogenization treatment and ingot heating are combined, and the situation in the prior art that the time of the homogenization treatment is excessively short and the homogenization treatment is insufficient is changed; and moreover, the aluminum ingot is directly heated uniformly in the heating furnace at 540-580 DEG C for 13-15 h, and the high-temperature and long-time heating ensures that dendritic segregation in the ingot is eliminated, the soluble crystalline phase in the ingot is dissolved in a matrix, and the homogenization treatment effect is improved.
Description
Technical field
The present invention relates to the aluminium production technical field, more particularly, relate to the rolling treatment process of a kind of automobile with the 6xxx line aluminium alloy.
Background technology
In the production process of aluminum products, the aluminium ingot casting does not carry out the homogenizing processing and just is rolled, can only reduce draught can not ftracture to guarantee the aluminium ingot casting, and adopt little draught that the aluminium ingot casting is rolled end properties after can direct influence of rolled, can't realize that timeliness is stable, also can influence the surface quality of aluminium plate simultaneously.
Please refer to accompanying drawing 1, automobile with the common production technique of 6xxx line aluminium alloy is: 101, quench treatment, 102) the aluminium ingot casting is carried out homogenizing processing, 103) the aluminium ingot casting is carried out reheat, 104) the aluminium ingot casting is rolled.In the above-mentioned treatment process, after carrying out the homogenizing processing after the quenching, by to organizing the research of phase, after discovery is carried out the homogenizing processing by soaking pit to the aluminium ingot casting, also have many crystallization phasess not to be dissolved in the matrix fully in the ingot structure, uniform distribution not after various crystallization phasess cooling in the matrix is separated out in order to satisfy rolling requirement, is carrying out independently reheat to the aluminium ingot casting.But, in the above-mentioned heat treatment process owing to there is not a suitable heating condition, homogenizing is handled owing to handle insufficient causing needs follow-up heating, but, above-mentioned homogenizing is handled the back by mobile aluminium ingot casting, aluminium ingot casting temperature in the process that moves descends, it is insufficient to cause homogenizing to handle, simultaneously, by aluminium ingot casting behind the aluminium ingot casting reheat is heated up gradually, owing to be subjected to the restriction of activity time, still can't solve the homogenizing problem that crystallization phases is separated out mouth after the heating, had a strong impact on the effect of rolling technology and subsequent heat treatment technology to material property.
Summary of the invention
In view of this, the embodiment of the invention discloses the rolling treatment process of a kind of automobile with the 6xxx line aluminium alloy, by the aluminium alloy after quenching is directly carried out even heating, changed the condition of even heating, collect existing homogenizing and add heating integrated, improve the homogenizing treatment effect of aluminium ingot casting, saved operation simultaneously.
In order to achieve the above object, the embodiment of the invention provides following technical scheme:
A kind of automobile rolling treatment process of 6xxx line aluminium alloy may further comprise the steps:
201) the aluminium ingot casting is carried out quench treatment;
202) will put into through the aluminium ingot casting after the quench treatment and carry out even heating in the process furnace, Heating temperature is 540 ℃～580 ℃, and be 13～15 hours heat-up time;
203) the aluminium ingot casting after the heating is rolled.
Preferably, the Heating temperature in the above-mentioned automobile rolling treatment process with the 6xxx line aluminium alloy, step 202) is 550 ℃.
Preferably, be 14 hours the heat-up time in the above-mentioned automobile rolling treatment process with the 6xxx line aluminium alloy, step 202).
As shown from the above technical solution, the automobile that provides in the embodiment of the invention is with in the rolling treatment process of 6xxx line aluminium alloy homogenizing processing and ingot casting heating being united two into one, it is too short and homogenizing is handled insufficient to have changed homogenizing is handled in the prior art time, in the rolling treatment process provided by the invention, directly the aluminium ingot casting is delivered to even heating in the process furnace, adopt 540 ℃～580 ℃, be 13～15 hours heat-up time, high temperature heats for a long time, the feasible elimination of having controlled dendritic segregation in the ingot casting, allow the solvable crystallization phases in the ingot casting be dissolved in the middle of the matrix, allow the insoluble non-equilibrium phase of part change simultaneously for equilibrium phase, significantly reduced the existence of crystallization phases in the ingot casting, these transformations all help improving the deformability of ingot casting in thermal distortion and cold deformation.Even homogenizing is handled and to be made 6xxx is that automobile carries out heavy reduction rolling with aluminum alloy plate materials and still can not produce cracking phenomena in the operation of rolling.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the automobile rolling treatment process of 6xxx line aluminium alloy in the prior art;
The automobile that Fig. 2 provides for the embodiment of the invention rolling treatment process of 6xxx line aluminium alloy;
The synoptic diagram that Fig. 3 heats the aluminium ingot casting for the thermopair that provides in the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention discloses the rolling treatment process of a kind of automobile with the 6xxx line aluminium alloy, by the aluminium alloy after quenching is carried out even heating, changed the condition of even heating, collect existing homogenizing and add heating integrated, in same process period, constantly the aluminium ingot casting is heated, improved the homogenizing treatment effect of aluminium ingot casting, saved operation simultaneously.
Please refer to accompanying drawing 2, the automobile that Fig. 2 provides for the embodiment of the invention rolling treatment process of 6xxx line aluminium alloy.
The automobile that the embodiment of the invention the provides rolling treatment process of 6xxx line aluminium alloy may further comprise the steps:
201, the aluminium ingot casting is carried out quench treatment;
202, will put into through the aluminium ingot casting after the quench treatment and carry out even heating in the process furnace, Heating temperature is 540 ℃～580 ℃, and be 13～15 hours heat-up time;
203, the aluminium ingot casting after the heating is rolled.
The automobile that provides in the embodiment of the invention is with in the rolling treatment process of 6xxx line aluminium alloy homogenizing processing and ingot casting heating being united two into one, it is too short and homogenizing is handled insufficient to have changed homogenizing is handled in the prior art time, in the rolling treatment process provided by the invention, directly the aluminium ingot casting is delivered to even heating in the process furnace, adopt 540 ℃～580 ℃, be 13～15 hours heat-up time, high temperature heats for a long time, the feasible elimination of having controlled dendritic segregation in the ingot casting, allow the solvable crystallization phases in the ingot casting be dissolved in the middle of the matrix, allow the insoluble non-equilibrium phase of part change simultaneously for equilibrium phase, significantly reduced the existence of crystallization phases in the ingot casting, these transformations all help improving the deformability of ingot casting in thermal distortion and cold deformation.Even homogenizing is handled and to be made 6xxx is that automobile carries out heavy reduction rolling with aluminum alloy plate materials and still can not produce cracking phenomena in the operation of rolling.Directly be rolled after the homogenizing, the high temperature open rolling can guarantee that finishing temperature also is in high value, is organized as typical hot rolling microstructure after rolling.
In the rolling treatment process of the automobile that provides in the foregoing description with the 6xxx line aluminium alloy, the preferred Heating temperature in the step 202 is 550 ℃, and preferred, be 14 hours the heat-up time in the step 202.
Please refer to accompanying drawing 3, in the rolling treatment process of the automobile that provides in the foregoing description with the 6xxx line aluminium alloy, adopting process furnace to carry out the long homogenizing of high temperature handles, and process furnace is provided with and inserts formula galvanic couple 2 and carry out thermometric, monitor the temperature of aluminium ingot casting 1 constantly, utilize the method for high-temperature furnace gas rapid heating that ingot casting 1 is rapidly heated, allow crystallization phases as much as possible be dissolved in the middle of the matrix, eliminate dendritic segregation.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (3)
1. the rolling treatment process of an automobile usefulness 6xxx line aluminium alloy is characterized in that, may further comprise the steps:
201) the aluminium ingot casting is carried out quench treatment;
202) will put into through the aluminium ingot casting after the quench treatment and carry out even heating in the process furnace, Heating temperature is 540 ℃～580 ℃, and be 13～15 hours heat-up time;
203) the aluminium ingot casting after the heating is rolled.
2. automobile according to claim 1 is characterized in that step 202 with the rolling treatment process of 6xxx line aluminium alloy) in Heating temperature be 550 ℃.
3. automobile according to claim 2 is characterized in that step 202 with the rolling treatment process of 6xxx line aluminium alloy) in heat-up time be 14 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010577346 CN101984126A (en) | 2010-12-07 | 2010-12-07 | Rolling treatment process for 6xxx series aluminum alloy for automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010577346 CN101984126A (en) | 2010-12-07 | 2010-12-07 | Rolling treatment process for 6xxx series aluminum alloy for automobile |
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| CN101984126A true CN101984126A (en) | 2011-03-09 |
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| CN 201010577346 Pending CN101984126A (en) | 2010-12-07 | 2010-12-07 | Rolling treatment process for 6xxx series aluminum alloy for automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014446A (en) * | 2012-12-27 | 2013-04-03 | 亚洲铝业（中国）有限公司 | Production method of 5052-H22/32 aluminum alloy plate strip |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005074453A (en) * | 2003-08-29 | 2005-03-24 | Nippon Light Metal Co Ltd | Method for producing aluminum alloy thick plate |
| CN1916222A (en) * | 2005-08-16 | 2007-02-21 | 无锡银邦铝业有限公司 | Method for producing composite material of aluminum alloy |
| CN101823133A (en) * | 2005-10-28 | 2010-09-08 | 诺韦利斯公司 | The homogenizing of cast metal and heat treatment |
| CN101880805A (en) * | 2010-07-30 | 2010-11-10 | 浙江巨科铝业有限公司 | Al-Mg-Si aluminum alloy for automobile body panel and method for producing same |
-
2010
- 2010-12-07 CN CN 201010577346 patent/CN101984126A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005074453A (en) * | 2003-08-29 | 2005-03-24 | Nippon Light Metal Co Ltd | Method for producing aluminum alloy thick plate |
| CN1916222A (en) * | 2005-08-16 | 2007-02-21 | 无锡银邦铝业有限公司 | Method for producing composite material of aluminum alloy |
| CN101823133A (en) * | 2005-10-28 | 2010-09-08 | 诺韦利斯公司 | The homogenizing of cast metal and heat treatment |
| CN101880805A (en) * | 2010-07-30 | 2010-11-10 | 浙江巨科铝业有限公司 | Al-Mg-Si aluminum alloy for automobile body panel and method for producing same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014446A (en) * | 2012-12-27 | 2013-04-03 | 亚洲铝业（中国）有限公司 | Production method of 5052-H22/32 aluminum alloy plate strip |
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Application publication date: 20110309 |