CN202045357U - Die pin - Google Patents
Die pin Download PDFInfo
- Publication number
- CN202045357U CN202045357U CN2011201469579U CN201120146957U CN202045357U CN 202045357 U CN202045357 U CN 202045357U CN 2011201469579 U CN2011201469579 U CN 2011201469579U CN 201120146957 U CN201120146957 U CN 201120146957U CN 202045357 U CN202045357 U CN 202045357U
- Authority
- CN
- China
- Prior art keywords
- die pin
- aluminium alloy
- mold pin
- liquid
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a die pin used in the process of aluminium alloy casting, wherein the die pin has a conic profile, inside the die pin there is provided a cavity along the axis of the die pin, in the cavity there is provided a liquid cooling pipe, the inlet and the outlet of the liquid cooling pipe are arranged on the surface of the die pin, the material of the liquid cooling pipes is copper or stainless steel, and the liquid is water or liquid coolant. After the water cooling pipe is arranged inside the die pin, the flowing water continuously takes away the heat of aluminium alloy castings in the process of cooling molding, and the cooling speed is faster, and thereby the aluminium alloy casting with elongated pinhole, which is can not be cast in past, can be manufactured smoothly, the processing workload in later period of the aluminium alloy casting is greatly reduced, the working efficiency is increased, the casting quality is ensured, and the service life of the die pin is prolonged.
Description
Technical field
The utility model relates to the aluminium alloy casting field, specifically is meant a kind of mold pin that uses in the aluminium alloy casting process.
Background technology
After China's reform and opening-up, people's living standard is greatly improved, and the various vehicles such as popularity rates such as automobile, motorcycle improve day by day, have made things convenient for people's trip.The speed of the various vehicles is also more and more faster, and as high ferro, its speed has reached 500 kilometers/hour.Except development of science and technology, also have benefited from the various spare and accessory parts lightings and the high strength that use in the vehicles among this, aluminum alloy materials is being played the part of important role therein.
The production of aluminium alloy castings be unable to do without mould and mold pin, and the outer shape that mould has guaranteed aluminium alloy castings is consistent with design.Mold pin has then guaranteed the position and the size of all size pin-and-hole in the aluminium alloy castings, has reduced the post-production workload.
Mould and mold pin adopt No. 45 steel, cast steel and forged steel etc. in the past, because its high temperature resistant impact is poor, so service life is also shorter.Along with development of science and technology, great change has also taken place in mould and mold pin material, now all adopts high temperature, high-intensity 3Cr2N8VH13 forge hot steel to make material, has adopted 8407 materials of import in recent years again, and improved its service life greatly.
But variations in temperature is very big in the manufacture process of aluminum alloy materials foundry goods, and mold pin has experienced very big temperature shock, because the tapered segment of mold pin directly contacts with foundry goods, and contact area is bigger, cooling is slow, pull easily on the surface, causes the mold pin life-span to descend.In addition, mold pin is longer, and unidirectional heat transfer is slower, and cooling velocity is undesirable, causes the branch mould time to increase, and production efficiency descends.
Summary of the invention
Slow for the mold pin cooling that solves the prior art existence, the life-span descends, and production efficiency decline problem the utility model proposes a kind of mold pin simple in structure, that cooling is fast, durable, easy to use.
The technical scheme that the utility model uses is as follows:
A kind of mold pin, it is the cone profile, is provided with cavity in mold pin inside along axis direction, and the liquid cools pipeline is set in cavity; The import of described liquid cools pipeline and outlet are arranged at the mold pin surface; The material of described liquid cools pipeline is copper or stainless steel.
Described liquid is water or cooling fluid.
The beneficial effects of the utility model are:
1) after mold pin inside is provided with the water cooling pipeline, the water that flows is constantly taken away the heat of the aluminium alloy castings in the cooling forming, and cooling is fast, and production efficiency height, casting quality have also had guarantee, and the life-span of mold pin is prolonged.
2) just owing to the water cooling pipeline is set in mold pin inside, make the aluminium alloy castings that can't cast over elongated pin-and-hole, be able to smooth production, significantly reduced the post-production workload of aluminium alloy castings.
Description of drawings
Fig. 1 uses schematic diagram for the prior art mold pin.
Fig. 2 is the utility model schematic diagram.
Fig. 3 is an A part enlarged drawing among Fig. 2.
Fig. 4 is a B part enlarged drawing among Fig. 2.
1-mold pin among the figure, 2-mould, 3-foundry goods, 4-liquid-inlet, 5-liquid outlet, 6--liquid cools pipeline.
The specific embodiment
Fig. 1 uses schematic diagram for the prior art mold pin, among the figure as seen, the prior art mold pin is solid, mold pin is fixed on the mould during use, airtight cavity of the common composition of mold pin and mould, the aluminium alloy that is in liquid condition after the heating enters under the effect of gravity or pressure in the airtight cavity, has just obtained needed foundry goods after the cooling.
Fig. 2 is the utility model schematic diagram, is provided with cavity in mold pin 1 inside along axis direction, and liquid cools pipeline 6 is set in cavity; The import 4 and the outlet 5 of liquid cools pipeline are arranged at mold pin 1 surface; The material of liquid cools pipeline is copper or stainless steel.
Cooling liquid generally uses deionized water or cooling fluid.
Fig. 3 is an A part enlarged drawing among Fig. 2, after visible cooling water enters mold pin, flows along the liquid cools pipeline of being located at mold pin central axis position, along flowing between liquid cools pipeline and the mold pin cavity inner wall, the heat of foundry goods is taken away when water refluxes.
Fig. 4 is a B part enlarged drawing among Fig. 2, has indicated the cooling-water flow turning.
Open an elongate cavity from the mold pin bottom earlier when the utility model is made, the liquid cools pipeline is installed in cavity after, import and outlet are installed again, last closed mould pin bottom, the processing and manufacturing process is simple, and is safe and reliable.
Claims (3)
1. mold pin, it is the cone profile, it is characterized in that: be provided with cavity in mold pin inside along axis direction, the liquid cools pipeline is set in cavity.
2. a kind of mold pin according to claim 1 is characterized in that: the import of described liquid cools pipeline and outlet are arranged at the mold pin surface.
3. a kind of mold pin according to claim 1 is characterized in that: the material of described liquid cools pipeline is copper or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201469579U CN202045357U (en) | 2011-05-04 | 2011-05-04 | Die pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201469579U CN202045357U (en) | 2011-05-04 | 2011-05-04 | Die pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202045357U true CN202045357U (en) | 2011-11-23 |
Family
ID=44985682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201469579U Expired - Fee Related CN202045357U (en) | 2011-05-04 | 2011-05-04 | Die pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202045357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104249147A (en) * | 2014-09-18 | 2014-12-31 | 太仓海嘉车辆配件有限公司 | Cooling device and method of aluminum alloy housing for automobile gear transmissions |
-
2011
- 2011-05-04 CN CN2011201469579U patent/CN202045357U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104249147A (en) * | 2014-09-18 | 2014-12-31 | 太仓海嘉车辆配件有限公司 | Cooling device and method of aluminum alloy housing for automobile gear transmissions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111123 Termination date: 20120504 |