CN106862557A - A kind of mould for preparing powder metallurgy ring-shaped work pieces - Google Patents
A kind of mould for preparing powder metallurgy ring-shaped work pieces Download PDFInfo
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- CN106862557A CN106862557A CN201510911546.7A CN201510911546A CN106862557A CN 106862557 A CN106862557 A CN 106862557A CN 201510911546 A CN201510911546 A CN 201510911546A CN 106862557 A CN106862557 A CN 106862557A
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- mould
- sleeve
- mold
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- shaped work
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Abstract
The invention discloses a kind of mould for preparing powder metallurgy ring-shaped work pieces, be related to powder metallurgical technology, there is provided a kind of two-way system for ring-shaped work pieces mould.The mould for preparing powder metallurgy ring-shaped work pieces includes mold, lower mould, outer mold, sleeve I, sleeve II and solid shafting composition；Enclosed with mold and lower mould respectively by sleeve I, the sleeve II in sleeve I, the solid shafting in sleeve II in outer dies cavity and form upper and lower ring mould die cavity, equipped with the metal dust or alloy powder for preparing powder metallurgy ring-shaped work pieces in die cavity;The beneficial effects of the present invention are：This mould has selected the graphite with good heat conductive effect for raw material, and mold production process is simple, with low cost, while once sintered can prepare two ring-shaped work pieces using the mould, improves production efficiency and die life.
Description
Technical field
The present invention relates to powder metallurgical technology, more particularly, to a kind of mould and its application method for preparing powder metallurgy ring-shaped work pieces.
Background technology
Powder metallurgy is, using metal dust or alloy powder as raw material, by steps such as cold moudling, hot pressed sinterings, to prepare the technology containing different process type products.The technology can be not only used for manufacturing special material, can be used to manufacture precision parts again, has been widely used in the field such as machinery, biology, chemical industry, Aero-Space at present.
The design of mould is the important guarantee of cold moudling stage, and mould can determine that the dimensional accuracy of prepared powder metallurgy parts.It is currently used for preparing mould structure complexity, the inconvenient operation of powdered metallurgical material, and a sample can only be prepared generally in once sintered, reduces die life.
The content of the invention
It is an object of the invention to overcome shortcoming present in prior art, there is provided a kind of simple structure, the easy to operate mould for preparing powder metallurgy ring-shaped work pieces, the technical scheme of use is：A kind of mould for preparing powder metallurgy ring-shaped work pieces, it is characterised in that：The mould includes mold, sleeve I, outer mold, sleeve II, solid shafting and lower mould composition.Enclosed with mold and lower mould respectively by sleeve I, the sleeve II in sleeve I, the solid shafting in sleeve II in outer dies cavity and form upper and lower ring mould die cavity, equipped with the metal dust or alloy powder for preparing powder metallurgy ring-shaped work pieces in die cavity.
Technical characteristic of the invention also has：The mold and lower mould have the locating slot for the solid shafting that is installed.
Technical characteristic of the invention also has：The external diameter of the mold and lower mould locating slot is equal with the external diameter of sleeve II.
Technical characteristic of the invention also has：The external diameter on the mold and lower mould chassis is equal with outer mold external diameter.
Technical characteristic of the invention also has：The external diameter of the sleeve I is equal with outer mold internal diameter, and the internal diameter of sleeve I is equal with the external diameter of sleeve II.
Technical characteristic of the invention also has：The internal diameter of the sleeve 4 and solid shafting equal diameters.
Technical characteristic of the invention also has：The material of the mold, sleeve I, outer mold, sleeve II, solid shafting and lower mould is graphite.
The beneficial effects of the present invention are：This mould has selected the graphite with good heat conductive effect for raw material, and mold production process is simple, with low cost, while once sintered can prepare two ring-shaped work pieces using the mould, improves production efficiency and die life.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the invention, and accompanying drawing 2 is the generalized section of invention, and accompanying drawing 3 is lower die structure schematic diagram, wherein, 1 it is mold, 2 be sleeve, 3 be outer mold, 4 be sleeve, 5 be solid shafting, 6 is lower mould.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the invention is illustrated.The invention discloses a kind of mould for preparing powder metallurgy ring-shaped work pieces, the mould is constituted including mold 1, sleeve 2, outer mold 3, sleeve 4, solid shafting 5 and lower mould 6.Wherein enclosed with mold 1 and lower mould 6 respectively by sleeve 2, the sleeve 4 in sleeve 2, the solid shafting 5 in sleeve 4 in outer dies cavity and form upper and lower ring mould die cavity, equipped with the metal dust or alloy powder for preparing powder metallurgy ring-shaped work pieces in the die cavity.
Wherein, mold 1 and lower mould 6 have the locating slot for the solid shafting 5 that is installed.
The external diameter on mold 1 and the lower chassis of mould 6 is equal with the external diameter of outer mold 3.
In view of the requirement of thermal conductivity, the material of mold 1, sleeve 2, outer mold 3, sleeve 4, solid shafting 5 and lower mould 6 is graphite.
When using, solid shafting 5 is placed in the locating slot of lower mould 6 first；Then the outer surface of the inner surface of sleeve 2 and the lower locating slot of mould 2 is coordinated, constitutes lower impressions；Subsequently well mixed quantitative metal dust or alloy powder are fitted into lower impressions, to ensure uniform during dress powder；The lower surface of sleeve 4 is pressed onto the upper surface of metal dust or alloy powder again；Loaded quantitative metal dust or alloy powder in the upper surface of sleeve 4, the upper impression formed by solid shafting 5, sleeve 2 and sleeve 4；Sleeve 2, sleeve 4, solid shafting 5, lower mould 6 are fitted into outer mold 3 together again, the external diameter of its middle sleeve 2 and the minor diameter fit of outer mold 3, the lower chassis of mould 6 coordinates with the lower surface of outer mold 3；The lower surface of the locating slot of mold 1 is pressed onto the upper surface of metal dust or alloy powder again, and solid shafting 5 is placed in the locating slot of mold 1, the chassis of mold 1 coordinates with the upper surface of outer mold 3；Finally in order to ensure sintering effect, with forcing press to the upper surface of mold 1 pressurization 30MPa, and pressurize 15min.It is sintered in vacuum sintering furnace according to hot-pressing sintering technique curve after prefabricated end, finally gives powder metallurgy ring-shaped work pieces.
Described above not limitation of the present invention, the present invention is also not limited to the example above, change, remodeling, addition or replacement that those skilled in the art are made in the essential scope of invention, falls within protection scope of the present invention.
Claims (7)
1. a kind of mould for preparing powder metallurgy ring-shaped work pieces, it is characterised in that：The mould is constituted including mold 1, sleeve 2, outer mold 3, sleeve 4, solid shafting 5 and lower mould 6；Wherein enclosed with mold 1 and lower mould 6 respectively by sleeve 2, the sleeve 4 in sleeve 2, the solid shafting 5 in sleeve 4 in outer dies cavity and form upper and lower ring mould die cavity, equipped with the metal dust or alloy powder for preparing powder metallurgy ring-shaped work pieces in the die cavity.
2. according to the mould for preparing powder metallurgy ring-shaped work pieces described in claim 1, it is characterised in that：The mold 1 and lower mould 6 have the locating slot for the solid shafting 5 that is installed.
3. according to the mould for preparing powder metallurgy ring-shaped work pieces described in claim 2, it is characterised in that：The external diameter of the mold 1 and the lower locating slot of mould 6 is equal with the external diameter of sleeve 4.
4. according to the mould for preparing powder metallurgy ring-shaped work pieces described in claim 1, it is characterised in that：The external diameter on the mold 1 and the lower chassis of mould 6 is equal with the external diameter of outer mold 3.
5. according to the mould for preparing powder metallurgy ring-shaped work pieces described in claim 1, it is characterised in that：The external diameter of the sleeve 2 is equal with outer mold internal diameter, and the internal diameter of sleeve 2 is equal with the external diameter of sleeve 4.
6. according to the mould for preparing powder metallurgy ring-shaped work pieces described in claim 5, it is characterised in that：The internal diameter of the sleeve 4 and solid shafting equal diameters.
7. according to the mould for preparing sintered metal powder bearing outer ring described in claim 1, it is characterised in that：The material of the mold 1, sleeve 2, outer mold 3, sleeve 4, solid shafting 5 and lower mould 6 is graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911546.7A CN106862557A (en) | 2015-12-11 | 2015-12-11 | A kind of mould for preparing powder metallurgy ring-shaped work pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911546.7A CN106862557A (en) | 2015-12-11 | 2015-12-11 | A kind of mould for preparing powder metallurgy ring-shaped work pieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106862557A true CN106862557A (en) | 2017-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510911546.7A Pending CN106862557A (en) | 2015-12-11 | 2015-12-11 | A kind of mould for preparing powder metallurgy ring-shaped work pieces |
Country Status (1)
| Country | Link |
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| CN (1) | CN106862557A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584114A (en) * | 2017-10-25 | 2018-01-16 | 江苏鑫贝诺冶金机械有限公司 | A kind of arc frame powder metallurgy forming mould |
| WO2023143087A1 (en) * | 2022-01-27 | 2023-08-03 | 浙江盾安人工环境股份有限公司 | End cover machining method, end cover, and pipeline assembly |
-
2015
- 2015-12-11 CN CN201510911546.7A patent/CN106862557A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584114A (en) * | 2017-10-25 | 2018-01-16 | 江苏鑫贝诺冶金机械有限公司 | A kind of arc frame powder metallurgy forming mould |
| WO2023143087A1 (en) * | 2022-01-27 | 2023-08-03 | 浙江盾安人工环境股份有限公司 | End cover machining method, end cover, and pipeline assembly |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |