CN113042631A - Aluminothermic forming device and operation method thereof - Google Patents
Aluminothermic forming device and operation method thereof Download PDFInfo
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- CN113042631A CN113042631A CN201911367095.XA CN201911367095A CN113042631A CN 113042631 A CN113042631 A CN 113042631A CN 201911367095 A CN201911367095 A CN 201911367095A CN 113042631 A CN113042631 A CN 113042631A
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- aluminum alloy
- alloy plate
- lubricant
- aluminothermic
- forming
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- 238000000034 method Methods 0.000 title claims description 18
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 117
- 238000001816 cooling Methods 0.000 claims abstract description 60
- 239000000314 lubricant Substances 0.000 claims abstract description 59
- 238000005507 spraying Methods 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims description 25
- 239000007921 spray Substances 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 9
- 239000006104 solid solution Substances 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000001556 precipitation Methods 0.000 abstract description 5
- 238000011017 operating method Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical group C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
Abstract
The invention relates to an aluminothermic forming device and an operating method thereof.A lubricant spraying device is arranged in a cooling device, so that a lubricant can be sprayed on an aluminum alloy plate while the aluminum alloy plate is cooled, on one hand, the sprayed lubricant can help to reduce the temperature of the aluminum alloy plate within limited time, and the temperature of the aluminum alloy plate is reduced to be lower than the upper limit of a forming temperature range so as to meet the requirement of stable production; on the other hand, the step of spraying the lubricant on the die subsequently is omitted when the aluminum alloy plate is cooled, the time for forming the aluminum alloy plate is shortened, the impurity precipitation is reduced, and the production takt time can be improved.
Description
Technical Field
The invention relates to an aluminothermic forming device and an operating method thereof.
Background
The parts manufactured by the aluminum alloy hot forming process have ultrahigh strength and good dimensional accuracy, and meanwhile, the weight of the automobile body can be effectively reduced, and the fuel economy of the automobile is improved. However, in the current production flow, in order to improve the production efficiency, improve the solid solution heating temperature and shorten the solid solution time, the temperature of the aluminum alloy plate is higher when the aluminum alloy plate is discharged, and in order to avoid the influence of impurity phase precipitation on the strength of the aged part in the transfer process, the longer transfer time t is not allowed, so that the temperature of the aluminum alloy plate is too high during the forming, the temperature is close to the upper limit of the temperature suitable for the forming, and the stable production of the part is not facilitated; in addition, in the process of aluminum alloy hot forming, the friction coefficient between the aluminum alloy plate and the surface of the die is very large, so that a lubricant must be sprayed, and the production takt is reduced.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention provides an aluminothermic forming device and an operating method thereof, which can improve the forming quality of aluminum alloy plate.
In order to achieve the purpose, the invention provides an aluminothermic forming device, which adopts the following technical scheme: the aluminothermic forming device comprises a conveying device, wherein the conveying device is used for sequentially conveying an aluminum alloy plate into a heating furnace, a cooling device and a centering table, the heating furnace is used for carrying out solid solution heat preservation on the aluminum alloy plate, the cooling device is used for cooling the aluminum alloy, and the aluminum alloy plate output from the cooling device is centered by the centering table and then is conveyed into a press by a manipulator for forming and processing; and a lubricant spraying device is arranged in the cooling device and is used for spraying lubricant on the aluminum alloy plate.
Preferably, the conveying device is a conveying roller way, and the aluminum alloy plate is placed on the conveying roller way.
More preferably, the lubricant spraying device comprises an upper spray head group arranged above the conveying roller way and a lower spray head group arranged below the conveying roller way, the upper spray head group is used for spraying lubricant to the upper surface of the aluminum alloy plate, and the lower spray head group is used for spraying lubricant to the lower surface of the aluminum alloy plate.
Preferably, the aluminum alloy plate is cooled by a cooling device to a temperature below the upper limit of the forming temperature range.
The present invention also provides a method for operating an aluminothermic forming apparatus, which is performed by the aluminothermic forming apparatus according to the above technical means or any preferred technical means, comprising the steps of:
1) conveying the aluminum alloy plate to a heating furnace by a conveying device for heating so as to carry out solid solution and heat preservation;
2) conveying the aluminum alloy plate from the heating furnace to a cooling device by a conveying device for cooling;
3) when the cooling device cools the aluminum alloy plate, a lubricant spraying device in the cooling device sprays lubricant on the aluminum alloy plate;
4) the conveying device conveys the aluminum alloy plate from the cooling device to the centering table, and the centering table conveys the aluminum alloy plate to the press for forming processing after centering the aluminum alloy plate.
Preferably, in the step 3), a lubricant spraying device in the cooling device sprays lubricant to the upper and lower surfaces of the aluminum alloy plate material simultaneously.
As described above, the aluminothermic forming apparatus and the operating method thereof according to the present invention have the following advantageous effects: in the aluminothermic forming device, the lubricant spraying device is arranged in the cooling device, so that the lubricant can be sprayed on the aluminum alloy plate while the aluminum alloy plate is cooled, on one hand, the sprayed lubricant can help to reduce the temperature of the aluminum alloy plate within limited time, so that the temperature of the aluminum alloy plate is reduced to be lower than the upper limit of the forming temperature range to meet the requirement of stable production; on the other hand, the step of spraying the lubricant on the die subsequently is omitted when the aluminum alloy plate is cooled, the time for forming the aluminum alloy plate is shortened, the impurity precipitation is reduced, and the production takt time can be improved.
Drawings
FIG. 1 is a schematic structural diagram of an aluminothermic forming apparatus according to the present invention.
Fig. 2 is a schematic diagram showing the structure of a lubricant spraying device part in the cooling device.
Fig. 3 is a graph showing the temperature change curve of an aluminum alloy sheet during the processing of the aluminum alloy sheet by using the aluminothermic forming device of the present invention, wherein the dotted line part is the temperature change curve of the aluminum alloy sheet from the heating furnace to the end of the forming in the press.
Description of the element reference numerals
1 aluminum alloy plate
2 heating furnace
3 Cooling device
4 centering table
5 pressing machine
6 rollgang
7 Cooling box body
8 upper nozzle group
9 lower nozzle group
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1, the invention provides an aluminothermic forming device, which comprises a conveying device, wherein the conveying device is used for conveying an aluminum alloy plate 1 into a heating furnace 2, a cooling device 3 and a centering table 4 in sequence, the heating furnace 2 is used for carrying out solid solution and heat preservation on the aluminum alloy plate 1, the cooling device 3 is used for cooling the aluminum alloy, and the aluminum alloy plate 1 output from the cooling device 3 is centered by the centering table 4 and then is conveyed into a press 5 by a manipulator for forming and processing; and a lubricant spraying device is arranged in the cooling device 3 and is used for spraying lubricant on the aluminum alloy plate 1.
In the aluminothermic forming device, the lubricant spraying device is arranged in the cooling device 3, so that the lubricant can be sprayed on the aluminum alloy plate 1 while the aluminum alloy plate 1 is cooled, and on one hand, the sprayed lubricant can help to reduce the temperature of the aluminum alloy plate 1 within a limited time, so that the temperature of the aluminum alloy plate 1 is reduced to be below the upper limit of the forming temperature range to meet the requirement of stable production; on the other hand, the step of spraying the lubricant on the die subsequently is omitted when the aluminum alloy plate 1 is cooled, the forming time of the aluminum alloy plate 1 is shortened, the impurity precipitation is reduced, and the production takt can be improved.
In the aluminothermic forming device, while the cooling device 3 performs forced cooling on the aluminum alloy sheet 1, the lubricant spraying device in the cooling device 3 sprays lubricant on the aluminum alloy sheet 1, in order to spray the lubricant on the aluminum alloy sheet 1, as shown in fig. 2, the conveying device is a conveying roller table 6, the aluminum alloy sheet 1 is placed on the conveying roller table 6, the cooling device 3 is provided with a cooling box body 7, the lubricant spraying device is arranged in the cooling box body 7, the lubricant spraying device comprises an upper nozzle group 8 arranged above the conveying roller table 6 and a lower nozzle group 8 arranged below the conveying roller table 6, the upper nozzle group 8 is used for spraying the lubricant on the upper surface of the aluminum alloy sheet 1, and the lower nozzle group 8 is used for spraying the lubricant on the lower surface of the aluminum alloy sheet 1. Because gaps are formed among the conveying rollers of the conveying roller way 6, the lubricant sprayed by the lower spray head group 8 can be conveniently sprayed on the lower surface of the aluminum alloy plate 1, and in addition, redundant lubricant can be conveniently discharged from gaps among the conveying rollers.
According to the aluminothermic forming device, the cooling device 3 and the lubricant spraying device are integrated in an aluminothermic forming production line, after the aluminum alloy plate 1 is output from the heating furnace 2 and enters the cooling device 3 through the conveying roller way 6 to be forcibly cooled, after heat exchange with sprayed lubricant is completed, the temperature of the aluminum alloy plate 1 can be reduced to a certain value when the aluminum alloy plate 1 leaves the cooling device 3, so that the temperature of the aluminum alloy plate 1 during forming can be reduced to meet the requirement of stable production, and meanwhile, the lubricant is sprayed on the aluminum alloy plate 1 in the conveying process of the cooling device 3, so that the time and equipment for spraying the lubricant subsequently are saved.
Referring to fig. 1, after unstacking and centering the aluminum alloy sheet 1, the aluminum alloy sheet 1 enters a heating furnace 2, after a certain time of solid solution and heat preservation in the heating furnace 2, the aluminum alloy sheet 1 enters a cooling device 3, in the cooling device 3, the aluminum alloy sheet 1 slowly moves under the rotation action of a conveying roller, an upper spray head group 8 and a lower spray head group 8 spray cooled lubricant on the surface of the aluminum alloy sheet 1 in the moving process, the temperature and the spraying amount of the lubricant can be adjusted according to production requirements, and after leaving the cooling device 3, the aluminum alloy sheet 1 enters a press 5 for molding after being centered by a centering table 4. The aluminum alloy plate 1 is cooled to a temperature lower than the upper limit of the forming temperature range after passing through the cooling device 3. The quality and the production stability of the product are ensured. The aluminum alloy plate 1 sprayed with the lubricant enters a die to be directly molded, so that the time and equipment for spraying the lubricant subsequently are saved.
Fig. 3 is a graph showing a temperature change curve of the aluminum alloy sheet 1 during the process of processing the aluminum alloy sheet 1 by using the aluminothermic forming apparatus of the present invention, wherein a dotted line portion is a temperature change curve of the aluminum alloy sheet 1 from the process of exiting the heating furnace 2 to the process of finishing forming in the press 5. Referring to fig. 3, in the process of forming the aluminum alloy sheet 1 in the prior art, when the aluminum alloy sheet 1 passes through the heating furnace 2, the cooling device 3, the centering table 4 and the press 5, a temperature curve of the aluminum alloy sheet is ABCD, an AB section is a temperature change of the aluminum alloy sheet 1 in a heating and heat-preserving stage in the heating furnace 2, a BC section is a temperature change of the aluminum alloy sheet 1 in a stage of cooling to transfer to the centering table 4 in the cooling device 3, and a CD section is a temperature change of the aluminum alloy sheet 1 in a forming stage in the press 5. The horizontal dotted line in fig. 3 is the upper limit of the forming temperature range, and it can be seen that, in the prior art, the temperature of the CD section is very close to the upper limit of the forming temperature range, which is not beneficial to controlling the forming quality of the aluminum alloy plate 1 and is easy to cause quality problems. In fig. 3, ABC 'D' is a schematic diagram of a temperature curve of the aluminum alloy sheet 1 during the process of processing the aluminum alloy sheet 1 by using the aluminothermic forming apparatus of the present invention, since the cooling apparatus 3 is provided with the lubricant spraying apparatus, the lubricant sprayed by the lubricant spraying apparatus helps to further cool the aluminum alloy sheet 1, the temperature of the aluminum alloy sheet 1 is rapidly reduced in the same time period, and when the aluminum alloy sheet 1 is conveyed to the press 5 for forming, please refer to the temperature change at the C 'D' stage in fig. 3, the temperature of the aluminum alloy sheet 1 is already significantly lower than the upper limit of the forming temperature range, so that the forming quality of the aluminum alloy sheet 1 can be ensured.
The present invention also provides a method for operating an aluminothermic forming apparatus, which is performed by the aluminothermic forming apparatus according to the above technical means or any preferred technical means, comprising the steps of:
1) conveying the aluminum alloy plate 1 to a heating furnace 2 by a conveying device for heating so as to carry out solid solution and heat preservation;
2) the conveying device conveys the aluminum alloy plate 1 from the heating furnace 2 to the cooling device 3 for cooling;
3) while the cooling device 3 cools the aluminum alloy plate 1, a lubricant spraying device in the cooling device 3 sprays lubricant on the aluminum alloy plate 1;
4) the conveying device conveys the aluminum alloy plate 1 to the centering table 4 from the cooling device 3, and the centering table 4 centers the aluminum alloy plate 1 and then conveys the aluminum alloy plate 1 to the press 5 for forming and processing through the mechanical arm.
Corresponding to the aluminothermic forming device of the present invention, the method of operating an aluminothermic forming device of the present invention also has the beneficial effects of the aluminothermic forming device of the present invention, and will not be described herein again.
Preferably, in the step 3), the lubricant spraying device in the cooling device 3 sprays the lubricant to the upper and lower surfaces of the aluminum alloy sheet 1 at the same time.
Based on the technical scheme of the embodiment, the aluminothermic forming device and the operation method thereof can reduce the temperature of the aluminum alloy plate 1 within a limited time, so that the temperature of the aluminum alloy plate 1 is reduced to be lower than the upper limit of the forming temperature range to meet the requirement of stable production; in addition, the step of spraying the lubricant on the die subsequently is omitted when the aluminum alloy plate 1 is cooled, the forming time of the aluminum alloy plate 1 is shortened, impurity precipitation is reduced, and the production takt can be improved.
In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. An aluminothermic forming device is characterized by comprising a conveying device, wherein the conveying device is used for sequentially conveying an aluminum alloy plate into a heating furnace, a cooling device and a centering table, the heating furnace is used for carrying out solid solution heat preservation on the aluminum alloy plate, the cooling device is used for cooling the aluminum alloy, and the aluminum alloy plate output from the cooling device is centered by the centering table and then is conveyed into a press by a manipulator for forming and processing; and a lubricant spraying device is arranged in the cooling device and is used for spraying lubricant on the aluminum alloy plate.
2. The aluminothermic forming apparatus of claim 1, wherein: the conveying device is a conveying roller way, and the aluminum alloy plate is placed on the conveying roller way.
3. The aluminothermic forming apparatus of claim 2, wherein: the lubricant spraying device comprises an upper spray head group arranged above the conveying roller way and a lower spray head group arranged below the conveying roller way, the upper spray head group is used for spraying lubricant to the upper surface of the aluminum alloy plate, and the lower spray head group is used for spraying lubricant to the lower surface of the aluminum alloy plate.
4. The aluminothermic forming apparatus of claim 1, wherein: and cooling the aluminum alloy plate to a temperature lower than the upper limit of the forming temperature range through a cooling device.
5. An operation method of an aluminothermic forming apparatus, which operates using the aluminothermic forming apparatus according to any one of claims 1 to 4, comprising the steps of:
1) conveying the aluminum alloy plate to a heating furnace by a conveying device for heating so as to carry out solid solution and heat preservation;
2) conveying the aluminum alloy plate from the heating furnace to a cooling device by a conveying device for cooling;
3) when the cooling device cools the aluminum alloy plate, a lubricant spraying device in the cooling device sprays lubricant on the aluminum alloy plate;
4) the conveying device conveys the aluminum alloy plate from the cooling device to the centering table, and the centering table conveys the aluminum alloy plate to the press for forming processing after centering the aluminum alloy plate.
6. The method of operating an aluminothermic forming apparatus according to claim 5, wherein: and in the step 3), a lubricant spraying device in the cooling device simultaneously sprays lubricant on the upper surface and the lower surface of the aluminum alloy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911367095.XA CN113042631A (en) | 2019-12-26 | 2019-12-26 | Aluminothermic forming device and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911367095.XA CN113042631A (en) | 2019-12-26 | 2019-12-26 | Aluminothermic forming device and operation method thereof |
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| CN113042631A true CN113042631A (en) | 2021-06-29 |
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Application publication date: 20210629 |