CN111112580A - Forming method of heat dissipation channel of automobile stamping die casting - Google Patents
Forming method of heat dissipation channel of automobile stamping die casting Download PDFInfo
- Publication number
- CN111112580A CN111112580A CN202010031514.9A CN202010031514A CN111112580A CN 111112580 A CN111112580 A CN 111112580A CN 202010031514 A CN202010031514 A CN 202010031514A CN 111112580 A CN111112580 A CN 111112580A
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- China
- Prior art keywords
- cooling water
- water pipe
- heat dissipation
- dissipation channel
- forming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a method for forming a heat dissipation channel of an automobile stamping die casting, which comprises the following steps: s1, manufacturing of a cooling water pipe: manufacturing a cooling water pipe by using a round steel pipe, wherein the wall thickness of the cooling water pipe is 10-15 mm; s2, pre-burying of a cooling water pipe: placing the foam model into a sand box, then placing a cooling water pipe into the foam model, extending two ends of the cooling water pipe out of the foam model, and then filling molding sand into the sand box; s3, pouring; and S4, cooling, taking out the casting, and forming the cooling water pipe and the casting into a whole. According to the forming method of the heat dissipation channel of the automobile stamping die casting, the cooling water pipe is arranged in the foam model, the wall thickness of the cooling water pipe is reasonably arranged, the cooling water pipe is prevented from being melted through by molten metal during pouring, and the effective forming of the heat dissipation channel on the automobile stamping die casting can be realized.
Description
Technical Field
The invention belongs to the technical field of full mold casting, and particularly relates to a forming method of a heat dissipation channel of an automobile stamping die casting.
Background
When the automobile stamping die is subjected to rapid cold punching, because the stress degree of each part is different, the local position can be overheated, and therefore local deformation is generated, and the quality of a stamped plate is seriously influenced. In order to avoid local overheating during stamping, a heat dissipation channel is designed at a position required by a die, and the channel design needs to meet the strength of the stamping die and have a sufficient heat dissipation function. This therefore causes great difficulty in solid mold casting.
Because the diameter of the heat dissipation channel is designed to be only 20mm and is smaller, and the length of the heat dissipation channel needs to reach about 2000mm, the heat dissipation channel cannot be cast on a die by the existing casting production process.
Disclosure of Invention
The invention provides a method for forming a heat dissipation channel of an automobile stamping die casting, and aims to realize effective forming of the heat dissipation channel on the automobile stamping die casting.
In order to achieve the purpose, the invention adopts the technical scheme that: the forming method of the heat dissipation channel of the automobile stamping die casting comprises the following steps:
s1, manufacturing of a cooling water pipe: manufacturing a cooling water pipe by using a round steel pipe, wherein the wall thickness of the cooling water pipe is 10-15 mm;
s2, pre-burying of a cooling water pipe: placing the foam model into a sand box, then placing a cooling water pipe into the foam model, extending two ends of the cooling water pipe out of the foam model, and then filling molding sand into the sand box;
s3, pouring;
and S4, cooling, taking out the casting, and forming the cooling water pipe and the casting into a whole.
In step S1, the steel pipe used is a 400 series stainless steel pipe or a 400 series or higher stainless steel pipe.
In step S1, the cooling water pipe is filled with silica sand.
In step S1, the inner diameter of the cooling water pipe is 20 mm.
In the step S1, a fixing rod is mounted on the cooling water pipe; in the step S2, after the molding sand is filled in the sand box, the molding sand surrounds the fixing rods; in step S3, when the molten metal is poured, the molding sand surrounds the fixing rod, and the cooling water pipe is fixed.
In the step S1, a plurality of fixing rods are installed on the cooling water pipe, and all the fixing rods are sequentially arranged along the length direction of the cooling water pipe.
The fixing rod is of an L-shaped or U-shaped structure.
In the step S2, the first half of the foam pattern is placed in the sand box, the cooling water pipe is then placed on the first half of the foam pattern, the second half of the foam pattern is then placed on the first half, the fixing rods are located in the lightening holes of the second half of the foam pattern, and then the sand box is filled with the molding sand.
According to the forming method of the heat dissipation channel of the automobile stamping die casting, the cooling water pipe is arranged in the foam model, the wall thickness of the cooling water pipe is reasonably arranged, and the cooling water pipe is filled with silica sand, so that the cooling water pipe is prevented from being melted through by molten metal during pouring, and the effective forming of the heat dissipation channel on the automobile stamping die casting can be realized.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic view of the assembly of a foam pattern with cooling water tubes;
FIG. 2 is a schematic view of another angle of assembly of the foam pattern with the cooling water tube;
FIG. 3 is a schematic view of the structure of the cooling water pipe;
FIG. 4 is a schematic view showing the assembly of a cooling water pipe with a fixing rod;
labeled as: 1. a cooling water pipe; 2. fixing the rod; 3. a foam model; 4. and (4) silica sand.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.
As shown in fig. 1 to 4, the invention provides a method for forming a heat dissipation channel of an automobile stamping die casting, which comprises the following steps:
s1, manufacturing of the cooling water pipe 1: manufacturing a cooling water pipe 1 by using a round steel pipe, wherein the wall thickness of the cooling water pipe 1 is 10-15 mm;
s2, pre-embedding of the cooling water pipe 1: placing the foam model 3 into a sand box, then placing the cooling water pipe 1 into the foam model 3, extending two ends of the cooling water pipe 1 out of the foam model 3, and then filling the sand box with molding sand;
s3, pouring;
and S4, cooling, taking out the casting, and integrating the cooling water pipe 1 with the casting.
Specifically, as shown in fig. 3 and 4, in step S1, the steel pipe used is a 400 series stainless steel pipe or a 400 series or more stainless steel pipe, and the cooling water pipe 1 is a cylindrical pipe body having both ends open and having a hollow interior.
As shown in fig. 3 and 4, in step S1, the cooling water pipe 1 is preferably filled with silica sand 4, the center hole of the cooling water pipe 1 is preferably filled with silica sand 4, and the center hole of the cooling water pipe 1 is preferably filled with all of the silica sand 4. The inner diameter of the cooling water pipe 1 is 20mm, the wall thickness of the cooling water pipe 1 is set within the range of 10mm-15mm, the cooling water pipe 1 has enough thickness, and silica sand 4 is filled in the cooling water pipe 1, so that the cooling water pipe 1 can be prevented from being melted through by molten metal during pouring, and effective forming of a heat dissipation channel on a casting is ensured.
As shown in fig. 4, in the step S1, the fixing rod 2 is installed on the cooling water pipe 1, the fixing rod 2 is fixedly connected to the outer circumferential surface of the cooling water pipe 1, one end of the fixing rod 2 is welded to the cooling water pipe 1, and the fixing rod 2 extends toward the outside of the cooling water pipe 1.
In the above step S2, after the molding sand is filled into the sand box, the molding sand surrounds the fixing rods 2; in this way, in step S3, when the molten metal is poured, the sand surrounds the fixing rod 2, and the cooling water pipe 1 is held fixed.
Because the cooling water pipe 1 has a small diameter and a long length, if the cooling water pipe 1 is not fixed, the cooling water pipe 1 is easy to be distorted and deformed under the washing of high-temperature metal liquid, and the processing of the molded surface is influenced. Therefore, in the invention, through the process design of the embedded steel pipe, the fixing rod 2 is surrounded by filling molding sand, and the cooling water pipe 1 is fixed by the molding sand in the cavity, so that the cooling water pipe 1 is prevented from generating distortion in molten metal in the pouring process.
In the above step S1, a plurality of fixing rods 2 are installed on the cooling water pipe 1, all the fixing rods 2 are arranged in sequence along the length direction of the cooling water pipe 1 and are distributed at equal intervals, and the fixing rods 2 are metal rods made of deformed steel bars. The fixing rod 2 is of an L-shaped or U-shaped structure, is better in matching effect with molding sand, and contributes to improving the forming effect of a heat dissipation channel on a casting.
When preparation foam model 3, according to the shape of car stamping die foundry goods, adopt EPS foam preparation foam model 3, and stratify foam model 3, also divide into two parts with foam model 3, this two parts are first half and second half respectively, first half has the first mounting hole that lets 1 embedding of condenser tube, second half has the second mounting hole that lets 1 embedding of condenser tube, first mounting hole and second mounting hole are half circular ports, first mounting hole sets up on first half with the laminating of second on the surface, the second mounting hole sets up on the laminating of second half with first half on the surface, first half and the diameter size of second half are the same.
In step S2, when the cooling water pipe 1 is attached, the first half of the foam pattern 3 is first placed in the flask, the first half of the foam pattern 3 is in a horizontal state, then the cooling water pipe 1 is placed on the first half of the foam pattern 3, the cooling water pipe 1 is laid flat in the first mounting hole of the first half, then, the second half of the foam pattern 3 is placed on the first half, the second half of the foam pattern 3 covers the cooling water pipe 1, the fixing rods 2 are located in lightening holes of the second half of the foam pattern 3, the cooling water pipe 1 is clamped between the first half part and the second half part of the foam model 3, the two ends of the cooling water pipe 1 extend outwards from the two ends of the foam model 3, and then filling molding sand into the sand box, burying the foam model 3, the cooling water pipe 1 and the fixing rod 2 by using the molding sand, and enabling the molding sand to enter the lightening holes of the second half part to form a sand mold.
In the above step S2, it is preferable that the lengths of the portions of the two ends of the cooling water pipe 1 protruding from the foam mold 3 are 150-.
In the step S4, after the casting is completed to form the casting, the cooling water pipe 1 is integrated with the casting, the length direction of the cooling water pipe 1 is parallel to the length direction of the casting, the silica sand 4 in the cooling water pipe 1 is removed, the central hole of the cooling water pipe 1 is used as a heat dissipation channel of the finally manufactured mold, and the diameter of the heat dissipation channel is 20 mm.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (8)
1. The forming method of the heat dissipation channel of the automobile stamping die casting is characterized by comprising the following steps of:
s1, manufacturing of a cooling water pipe: manufacturing a cooling water pipe by using a round steel pipe, wherein the wall thickness of the cooling water pipe is 10-15 mm;
s2, pre-burying of a cooling water pipe: placing the foam model into a sand box, then placing a cooling water pipe into the foam model, extending two ends of the cooling water pipe out of the foam model, and then filling molding sand into the sand box;
s3, pouring;
and S4, cooling, taking out the casting, and forming the cooling water pipe and the casting into a whole.
2. The method for forming the heat dissipation channel of the automobile stamping die casting as claimed in claim 1, wherein in step S1, the steel tube is 400 series stainless steel tube or 400 series or more stainless steel tube.
3. The method for forming the heat dissipation channel of the automobile stamping die casting according to claim 1 or 2, wherein in step S1, the cooling water pipe is filled with silica sand.
4. The method for forming the heat dissipation channel of the automobile stamping die casting according to any one of claims 1 to 3, wherein in the step S1, the inner diameter of the cooling water pipe is 20 mm.
5. The method for forming the heat dissipation channel of the automobile stamping die casting as claimed in any one of claims 1 to 4, wherein in step S1, fixing rods are installed on the cooling water pipes; in the step S2, after the molding sand is filled in the sand box, the molding sand surrounds the fixing rods; in step S3, when the molten metal is poured, the molding sand surrounds the fixing rod, and the cooling water pipe is fixed.
6. The method as set forth in claim 5, wherein a plurality of fixing rods are installed on the cooling water pipe in step S1, and all the fixing rods are arranged in sequence along the length direction of the cooling water pipe.
7. The method for forming the heat dissipation channel of the automobile stamping die casting as claimed in claim 5 or 6, wherein the fixing rod is of an L-shaped or U-shaped structure.
8. The method for forming a heat-dissipating passage of a casting for a press mold of an automobile as recited in any one of claims 5 to 7, wherein in step S2, the first half of the foam pattern is placed in the sand box, then the cooling water pipe is placed on the first half of the foam pattern, then the second half of the foam pattern is placed on the first half, the fixing rods are positioned in the lightening holes of the second half of the foam pattern, and then the sand box is filled with the sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010031514.9A CN111112580A (en) | 2020-01-13 | 2020-01-13 | Forming method of heat dissipation channel of automobile stamping die casting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010031514.9A CN111112580A (en) | 2020-01-13 | 2020-01-13 | Forming method of heat dissipation channel of automobile stamping die casting |
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| CN111112580A true CN111112580A (en) | 2020-05-08 |
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| CN202010031514.9A Pending CN111112580A (en) | 2020-01-13 | 2020-01-13 | Forming method of heat dissipation channel of automobile stamping die casting |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940677A (en) * | 2020-07-23 | 2020-11-17 | 中国第一汽车股份有限公司 | Casting method of pre-embedded die of stainless steel water-cooling pipe |
| CN112078102A (en) * | 2020-08-13 | 2020-12-15 | 日月重工股份有限公司 | Template casting and casting method thereof |
| CN114985678A (en) * | 2022-06-16 | 2022-09-02 | 格致汽车科技股份有限公司 | Thermoforming water channel insert casting process |
| CN116984561A (en) * | 2023-07-24 | 2023-11-03 | 西安鑫龙机械铸造有限公司 | Efficient preparation method of special pipe based on lost foam process |
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| JPS555151A (en) * | 1978-06-28 | 1980-01-16 | Hitachi Ltd | Production of heat exchanger |
| CN1039546A (en) * | 1988-07-07 | 1990-02-14 | 施瓦布铸造股份有限公司 | The method of casting metals that is linked to be integral heat exchange |
| CN1544185A (en) * | 2003-11-12 | 2004-11-10 | 阮新伟 | Manufacturing method of buried pipe type copper cooling part |
| CN101185963A (en) * | 2007-12-07 | 2008-05-28 | 肖燕鹏 | Vanishing mould casting technique of blast furnace cooling wall |
| CN101417329A (en) * | 2007-10-26 | 2009-04-29 | 周传录 | Method with lost foam casting process production blast furnace water-cooling wall |
| CN101925425A (en) * | 2008-10-17 | 2010-12-22 | 庞巴迪动力产品美国公司 | Method and apparatus for consumable-pattern casting |
| CN102240793A (en) * | 2010-05-12 | 2011-11-16 | 南通超达机械科技有限公司 | Process for manufacturing cooling water pipe of automobile interior trim part steel casting mould |
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| CN105268918A (en) * | 2015-10-18 | 2016-01-27 | 中国电子科技集团公司第十研究所 | Preparing method for corrosion-resistant liquid cooling heat dissipation cold plate |
| CN106166600A (en) * | 2016-08-31 | 2016-11-30 | 苏州市通润机械铸造有限公司 | A kind of mould of vacuum pump air inlet case |
| CN106890946A (en) * | 2015-12-17 | 2017-06-27 | 通用电气公司 | There is the method and component of the component for being limited to internal path therein for being formed |
| CN107282886A (en) * | 2016-04-05 | 2017-10-24 | 福建聚能机械制造有限公司 | A kind of aluminium alloy lost foam casting technique of built-in spiral coil water channel |
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2020
- 2020-01-13 CN CN202010031514.9A patent/CN111112580A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS555151A (en) * | 1978-06-28 | 1980-01-16 | Hitachi Ltd | Production of heat exchanger |
| CN1039546A (en) * | 1988-07-07 | 1990-02-14 | 施瓦布铸造股份有限公司 | The method of casting metals that is linked to be integral heat exchange |
| CN1544185A (en) * | 2003-11-12 | 2004-11-10 | 阮新伟 | Manufacturing method of buried pipe type copper cooling part |
| CN101417329A (en) * | 2007-10-26 | 2009-04-29 | 周传录 | Method with lost foam casting process production blast furnace water-cooling wall |
| CN101185963A (en) * | 2007-12-07 | 2008-05-28 | 肖燕鹏 | Vanishing mould casting technique of blast furnace cooling wall |
| CN101925425A (en) * | 2008-10-17 | 2010-12-22 | 庞巴迪动力产品美国公司 | Method and apparatus for consumable-pattern casting |
| CN102240793A (en) * | 2010-05-12 | 2011-11-16 | 南通超达机械科技有限公司 | Process for manufacturing cooling water pipe of automobile interior trim part steel casting mould |
| CN202684034U (en) * | 2012-07-24 | 2013-01-23 | 滁州金诺实业有限公司 | Securing device for embedded pipeline |
| CN105268918A (en) * | 2015-10-18 | 2016-01-27 | 中国电子科技集团公司第十研究所 | Preparing method for corrosion-resistant liquid cooling heat dissipation cold plate |
| CN106890946A (en) * | 2015-12-17 | 2017-06-27 | 通用电气公司 | There is the method and component of the component for being limited to internal path therein for being formed |
| CN107282886A (en) * | 2016-04-05 | 2017-10-24 | 福建聚能机械制造有限公司 | A kind of aluminium alloy lost foam casting technique of built-in spiral coil water channel |
| CN106166600A (en) * | 2016-08-31 | 2016-11-30 | 苏州市通润机械铸造有限公司 | A kind of mould of vacuum pump air inlet case |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940677A (en) * | 2020-07-23 | 2020-11-17 | 中国第一汽车股份有限公司 | Casting method of pre-embedded die of stainless steel water-cooling pipe |
| CN112078102A (en) * | 2020-08-13 | 2020-12-15 | 日月重工股份有限公司 | Template casting and casting method thereof |
| CN112078102B (en) * | 2020-08-13 | 2022-05-03 | 日月重工股份有限公司 | Template casting and casting method thereof |
| CN114985678A (en) * | 2022-06-16 | 2022-09-02 | 格致汽车科技股份有限公司 | Thermoforming water channel insert casting process |
| CN116984561A (en) * | 2023-07-24 | 2023-11-03 | 西安鑫龙机械铸造有限公司 | Efficient preparation method of special pipe based on lost foam process |
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