CN204565111U - A kind of with mould in the shaping of cooling system - Google Patents
A kind of with mould in the shaping of cooling system Download PDFInfo
- Publication number
- CN204565111U CN204565111U CN201520131638.9U CN201520131638U CN204565111U CN 204565111 U CN204565111 U CN 204565111U CN 201520131638 U CN201520131638 U CN 201520131638U CN 204565111 U CN204565111 U CN 204565111U
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- tungsten carbide
- core rod
- tank
- shaping
- die sleeve
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Abstract
The utility model discloses a kind of with mould in the shaping of cooling system.Should tungsten carbide core rod be comprised with mould in the shaping of cooling system and be sleeved on the die sleeve outside tungsten carbide core rod, the inwall of described die sleeve is provided with shape of threads tank, the inwall of tungsten carbide core rod and die sleeve adopts interference fit, and shape of threads tank is provided with water inlet and delivery port.By injecting the heat produced when cooling water takes away shaping continuously to shape of threads tank, thus reduce the thermal expansion of tungsten carbide core rod, die sleeve, product, also just avoid snap gauge phenomenon, reduce knockout press simultaneously, improve the mold use life-span.
Description
Technical field
The utility model relates to a kind of powder metallurgy forming mold, especially relates to mould in the shaping with cooling system.
Background technology
Along with the superiority of PM technique be more and more familiar with by all trades and professions and external powder metallurgy development trend acting in conjunction under, the Powder Metallurgy Industry of China obtains fast development in recent years.The demand of powder metallurgy product relates to all trades and professions.The product of demand is to complex-shaped and large (Heavy Weight) developing direction development of volume.The high-power compressor balance weight of prior art, weight is 580-590g, and height is 59mm.
Powder metallurgy be research and manufacture various metal dust and with the mixture of metal dust or non-metal powder by being shaped and sintering the technology making metallic article.The production process of sintered metal product is: mixing → shaping → sintering → subsequent treatment.High-power compressor balance weight is produced by common moulding technology.Common die forming applies certain pressure by mould to loose powder and obtains product.In forming process, because the phase mutual friction of powder particle and powder particle can produce larger heat with the phase mutual friction of die wall, product is when the demoulding simultaneously, product and die wall friction also produce larger heat, product, middle mould, undershoot can be caused like this to produce thermal expansion, because their thermal coefficient of expansion is different, product is iron-base powder metallurgy material, and the coefficient of expansion is large; Undershoot is high speed steel material, and the coefficient of expansion takes second place; Hardmetal materials during mould in shaping, the coefficient of expansion is minimum by contrast.In this case, middle mould strengthens the enclasping force of product, thus causes knockout press to strengthen; The fit clearance of middle mould and shaping undershoot reduces, thus causes snap gauge, and finally causes normally being shaped.
Utility model content
The purpose of this utility model is the deficiency existed for prior art, and in providing one to reduce, mould is to product enclasping force, is convenient to product stripping, avoid undershoot and middle mould snap gauge with mould in the shaping of cooling system.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of with mould in the shaping of cooling system, comprise tungsten carbide core rod and be sleeved on the die sleeve outside tungsten carbide core rod, the inwall of described die sleeve is provided with shape of threads tank, and the inwall of tungsten carbide core rod and die sleeve adopts interference fit, and shape of threads tank is provided with water inlet and delivery port.
Described water inlet is arranged on the downside of shape of threads tank, and delivery port is arranged on the upside of shape of threads tank.
The utility model compared with prior art, has the following advantages:
The thermal coefficient of expansion of tungsten carbide core rod is less, die sleeve adopts 45 steel thermal coefficient of expansions larger, the two adopts interference fit, prevent from coming off, when being shaped sintering, tungsten carbide core rod can not come off, and can ensure that helical form tank and tungsten carbide core rod fit tightly, cooling water can fully and tungsten carbide core contact, when sintering and the demoulding, cooling water can take away a large amount of heat, reduce the enclasping force of tungsten carbide core rod to product, be convenient to product stripping, the gap between undershoot and tungsten carbide core rod can not change, and it also avoid undershoot snap gauge.Adopt shape of threads tank well by the low temperature of middle mould, ensure that the gap of product and tungsten carbide core rod, the gap between tungsten carbide core rod and undershoot.Water inlet is arranged on the downside of screw thread dress tank, by water from downside upwards side pressure enter helical form tank and ensure that cooling water well contacts with tungsten carbide core rod, improve endothermic effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of mould in the shaping with cooling system.
Fig. 2 is the partial enlarged drawing of mould in the shaping with cooling system.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, these embodiments should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
As depicted in figs. 1 and 2, a kind of with mould in the shaping of cooling system, the die sleeve 2 comprising tungsten carbide core rod 1 and be socketed in outside tungsten carbide core rod, die sleeve is 45 punching block covers, tungsten carbide core rod and die sleeve combine through overheated interference fit, the inwall of die sleeve offers shape of threads tank 21, shape of threads tank by the downside spiral of die sleeve inwall to the upside of inwall, the downside of shape of threads tank 21 offers water inlet 22, offer delivery port 23 in the upside of shape of threads tank, delivery port 23 is connected to the downside of die sleeve by the pipeline 24 being opened in the inner side of die sleeve.The downside of tungsten carbide core rod slidably connects undershoot 3.By injecting the heat produced when cooling water takes away shaping continuously to shape of threads tank, thus reduce the thermal expansion of tungsten carbide core rod, die sleeve, product, also just avoid snap gauge phenomenon, reduce knockout press simultaneously, improve the mold use life-span.
Claims (2)
1. one kind with mould in the shaping of cooling system, it is characterized in that: comprise tungsten carbide core rod and be sleeved on the die sleeve outside tungsten carbide core rod, the inwall of described die sleeve is provided with shape of threads tank, the inwall of tungsten carbide core rod and die sleeve adopts interference fit, and shape of threads tank is provided with water inlet and delivery port.
2. according to claim 1 with mould in the shaping of cooling system, it is characterized in that: described water inlet is arranged on the downside of shape of threads tank, delivery port is arranged on the upside of shape of threads tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520131638.9U CN204565111U (en) | 2015-03-09 | 2015-03-09 | A kind of with mould in the shaping of cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520131638.9U CN204565111U (en) | 2015-03-09 | 2015-03-09 | A kind of with mould in the shaping of cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204565111U true CN204565111U (en) | 2015-08-19 |
Family
ID=53857803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520131638.9U Active CN204565111U (en) | 2015-03-09 | 2015-03-09 | A kind of with mould in the shaping of cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204565111U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351227A (en) * | 2017-06-28 | 2017-11-17 | 横店集团东磁股份有限公司 | A kind of dry-pressing formed cavity plate of permanent-magnet ferrite |
| CN110828153A (en) * | 2019-08-19 | 2020-02-21 | 横店集团东磁股份有限公司 | Automatic shaping device and method for bonded magnet product |
-
2015
- 2015-03-09 CN CN201520131638.9U patent/CN204565111U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351227A (en) * | 2017-06-28 | 2017-11-17 | 横店集团东磁股份有限公司 | A kind of dry-pressing formed cavity plate of permanent-magnet ferrite |
| CN110828153A (en) * | 2019-08-19 | 2020-02-21 | 横店集团东磁股份有限公司 | Automatic shaping device and method for bonded magnet product |
| CN110828153B (en) * | 2019-08-19 | 2020-12-22 | 横店集团东磁股份有限公司 | Automatic shaping device and method for bonded magnet product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 225008 Jiangsu province Hanjiang District of Yangzhou City Jiangyang Industrial Park Lotus Road No. 90 Patentee after: Yangzhou Haichang new materials Limited by Share Ltd Address before: 225008 Jiangsu province Hanjiang District of Yangzhou City Jiangyang Industrial Park Lotus Road No. 90 Patentee before: Yangzhou Seashine Powder Metallurgy Co., Ltd. |