CN105385970A - Thermal treatment process for thin-wall aluminum alloy casting - Google Patents
Thermal treatment process for thin-wall aluminum alloy casting Download PDFInfo
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- CN105385970A CN105385970A CN201510977192.6A CN201510977192A CN105385970A CN 105385970 A CN105385970 A CN 105385970A CN 201510977192 A CN201510977192 A CN 201510977192A CN 105385970 A CN105385970 A CN 105385970A
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- casting
- automobile body
- body framework
- thin
- thermal treatment
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Motors, Generators (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a thermal treatment process for a thin-wall aluminum alloy casting, and the thin-wall aluminum alloy casting is an automobile body framework casting. The thermal treatment process comprises the following steps: a, carrying out solid solution treatment: putting the automobile body framework casting into a heating furnace, heating the automobile body framework casting to a temperature of 650 +/-20 DEG C, preserving the temperature for 1-1.5 hours, continuously heating the automobile body framework casting to a temperature of 900+/-20 DEG C, preserving the temperature for 2-2.5 hours, cooling the automobile body framework casting to a temperature lower than 200 DEG C and discharging the automobile body framework casting out of the furnace; b, carrying out ageing treatment: putting the automobile body framework casting subjected to the solid solution treatment into the heating furnace, heating the automobile body framework casting to a temperature of 600+/-20 DEG C, preserving the temperature for 3-4 hours, cooling the automobile body framework casting to a temperature of 500+/-20 DEG C, preserving the temperature for 4-5 hours, cooling the automobile body framework casting to a temperature lower than 200 DEG C and discharging the automobile body framework casting out of the furnace. In this way, the thermal treatment process is simple and easy to control, and can improve strength and inherent quality of the casting.
Description
Technical field
The present invention relates to technical field of heat treatment, particularly relate to a kind of thermal treatment process of thin-walled aluminium alloy castings.
Background technology
The web member of body shell mostly is aluminum alloy casting, and this type of foundry goods plays the effect connecting each aluminium of vehicle body, is main load parts, and require to have higher intensity, in order to satisfied use needs, vehicle body aluminum alloy casting mostly is complex thin-wall structure.In order to the intensity of a progressive raising car body of aluminum alloy framework, usually also need to heat-treat its foundry goods, but existing thermal treatment process is complicated, the internal quality of casting after process need to improve.
Summary of the invention
The technical problem that the present invention mainly solves is: for the deficiencies in the prior art, provides a kind of thermal treatment process of thin-walled aluminium alloy castings, can solve the defect that existing thermal treatment process exists.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the thermal treatment process providing a kind of thin-walled aluminium alloy castings, described thin-walled aluminium alloy castings is body of a motor car frame casting, and its thermal treatment process comprises the steps:
A, solution treatment: body of a motor car frame casting is put into process furnace, be warming up to 650 ± 20 DEG C, and insulation 1-1.5 hour, continues to be warming up to 900 ± 20 DEG C, and insulation 2-2.5 hour, comes out of the stove when being cooled to below 200 DEG C;
B, ageing treatment: the body of a motor car frame casting after solution treatment is put into process furnace, is warming up to 600 ± 20 DEG C, insulation 3-4 hour, is then cooled to 500 ± 20 DEG C, then is incubated 4-5 hour, come out of the stove when being cooled to below 200 DEG C.
In a preferred embodiment of the present invention, described process furnace heat-up rate is 80-100 DEG C/h.
In a preferred embodiment of the present invention, described process furnace speed of cooling is 50-60 DEG C/h.
The invention has the beneficial effects as follows: the present invention carries out casting postheat treatment by solution treatment and ageing treatment to aluminium alloy automobile body shell foundry goods, and technique is simple and easy to control, effectively can improve intensity and the inner quality of foundry goods.
Embodiment
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
The embodiment of the present invention comprises:
Embodiment one:
A thermal treatment process for thin-walled aluminium alloy castings, described thin-walled aluminium alloy castings is body of a motor car frame casting, and its thermal treatment process comprises the steps:
A, solution treatment: body of a motor car frame casting is put into process furnace, be warming up to 630 DEG C with the speed of 80 DEG C/h, be incubated 1 hour, then continue to be warming up to 880 DEG C with the speed of 80 DEG C/h, be incubated 2 hours, then come out of the stove when being cooled to 180 DEG C with the speed of 50 DEG C/h;
B, ageing treatment: the body of a motor car frame casting after solution treatment is put into process furnace, 580 DEG C are warming up to the speed of 80 DEG C/h, be incubated 3 hours, then 480 DEG C are cooled to the speed of 50 DEG C/h, be incubated 4 hours again, come out of the stove when being finally cooled to 180 DEG C with the speed of 50 DEG C/h again.
Embodiment two:
A thermal treatment process for thin-walled aluminium alloy castings, described thin-walled aluminium alloy castings is body of a motor car frame casting, and its thermal treatment process comprises the steps:
A, solution treatment: body of a motor car frame casting is put into process furnace, be warming up to 650 DEG C with the speed of 90 DEG C/h, be incubated 1.5 hours, then continue to be warming up to 900 DEG C with the speed of 90 DEG C/h, be incubated 2 hours, then come out of the stove when being cooled to 180 DEG C with the speed of 60 DEG C/h;
B, ageing treatment: the body of a motor car frame casting after solution treatment is put into process furnace, 600 DEG C are warming up to the speed of 90 DEG C/h, be incubated 3.5 hours, then 500 DEG C are cooled to the speed of 60 DEG C/h, be incubated 4 hours again, come out of the stove when being finally cooled to 180 DEG C with the speed of 60 DEG C/h again.
Embodiment three:
A thermal treatment process for thin-walled aluminium alloy castings, described thin-walled aluminium alloy castings is body of a motor car frame casting, and its thermal treatment process comprises the steps:
A, solution treatment: body of a motor car frame casting is put into process furnace, be warming up to 670 DEG C with the speed of 100 DEG C/h, be incubated 1.5 hours, then continue to be warming up to 920 DEG C with the speed of 100 DEG C/h, be incubated 2.5 hours, then come out of the stove when being cooled to 190 DEG C with the speed of 60 DEG C/h;
B, ageing treatment: the body of a motor car frame casting after solution treatment is put into process furnace, 620 DEG C are warming up to the speed of 100 DEG C/h, be incubated 4 hours, then 520 DEG C are cooled to the speed of 60 DEG C/h, be incubated 5 hours again, come out of the stove when being finally cooled to 190 DEG C with the speed of 60 DEG C/h again.
Present invention is disclosed a kind of thermal treatment process of thin-walled aluminium alloy castings, carry out casting postheat treatment by solution treatment and ageing treatment to aluminium alloy automobile body shell foundry goods, technique is simple and easy to control, effectively can improve intensity and the inner quality of foundry goods.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. a thermal treatment process for thin-walled aluminium alloy castings, is characterized in that, described thin-walled aluminium alloy castings is body of a motor car frame casting, and its thermal treatment process comprises the steps:
A, solution treatment: body of a motor car frame casting is put into process furnace, be warming up to 650 ± 20 DEG C, and insulation 1-1.5 hour, continues to be warming up to 900 ± 20 DEG C, and insulation 2-2.5 hour, comes out of the stove when being cooled to below 200 DEG C;
B, ageing treatment: the body of a motor car frame casting after solution treatment is put into process furnace, is warming up to 600 ± 20 DEG C, insulation 3-4 hour, is then cooled to 500 ± 20 DEG C, then is incubated 4-5 hour, come out of the stove when being cooled to below 200 DEG C.
2. the thermal treatment process of thin-walled aluminium alloy castings according to claim 1, is characterized in that, the heat-up rate of described process furnace is 80-100 DEG C/h.
3. the thermal treatment process of thin-walled aluminium alloy castings according to claim 1, is characterized in that, described process furnace speed of cooling is 50-60 DEG C/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977192.6A CN105385970A (en) | 2015-12-23 | 2015-12-23 | Thermal treatment process for thin-wall aluminum alloy casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977192.6A CN105385970A (en) | 2015-12-23 | 2015-12-23 | Thermal treatment process for thin-wall aluminum alloy casting |
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| Publication Number | Publication Date |
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| CN105385970A true CN105385970A (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510977192.6A Pending CN105385970A (en) | 2015-12-23 | 2015-12-23 | Thermal treatment process for thin-wall aluminum alloy casting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109234652A (en) * | 2018-10-30 | 2019-01-18 | 烟台路通精密科技股份有限公司 | A kind of aluminium alloy castings short route heat treatment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001198659A (en) * | 2000-01-11 | 2001-07-24 | Nissan Motor Co Ltd | Method for producing aluminum product |
| DE102012017711A1 (en) * | 2011-09-10 | 2013-03-14 | Audi Ag | Heat treating a thin walled component of curable hypoeutectic aluminum-silicon casting alloys, comprises solution annealing and quenching of component, heating in a heating phase during predetermined heating time, and artificially aging |
| CN103834883A (en) * | 2012-11-20 | 2014-06-04 | 北京航星机器制造公司 | Heat treatment deformation control method of thin-wall saddle-shaped aluminum alloy casting |
| CN104878252A (en) * | 2015-05-20 | 2015-09-02 | 柳州市百田机械有限公司 | Method for casting thin-walled aluminum alloy castings |
-
2015
- 2015-12-23 CN CN201510977192.6A patent/CN105385970A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001198659A (en) * | 2000-01-11 | 2001-07-24 | Nissan Motor Co Ltd | Method for producing aluminum product |
| DE102012017711A1 (en) * | 2011-09-10 | 2013-03-14 | Audi Ag | Heat treating a thin walled component of curable hypoeutectic aluminum-silicon casting alloys, comprises solution annealing and quenching of component, heating in a heating phase during predetermined heating time, and artificially aging |
| CN103834883A (en) * | 2012-11-20 | 2014-06-04 | 北京航星机器制造公司 | Heat treatment deformation control method of thin-wall saddle-shaped aluminum alloy casting |
| CN104878252A (en) * | 2015-05-20 | 2015-09-02 | 柳州市百田机械有限公司 | Method for casting thin-walled aluminum alloy castings |
Non-Patent Citations (1)
| Title |
|---|
| 上海市热处理协会: "《实用热处理手册(第2版)》", 30 April 2014 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109234652A (en) * | 2018-10-30 | 2019-01-18 | 烟台路通精密科技股份有限公司 | A kind of aluminium alloy castings short route heat treatment method |
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