CN205324724U - Mould of preparation powder metallurgy ring shaped workpieces - Google Patents
Mould of preparation powder metallurgy ring shaped workpieces Download PDFInfo
- Publication number
- CN205324724U CN205324724U CN201521023358.2U CN201521023358U CN205324724U CN 205324724 U CN205324724 U CN 205324724U CN 201521023358 U CN201521023358 U CN 201521023358U CN 205324724 U CN205324724 U CN 205324724U
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- CN
- China
- Prior art keywords
- mould
- sleeve
- mold
- powder metallurgy
- work pieces
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- 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 discloses a mould of preparation powder metallurgy ring shaped workpieces relates to the powder metallurgy technology field, provides the mould of a two -way preparation ring shaped workpieces. Mould of preparation powder metallurgy ring shaped workpieces includes that mould, bed die, outer mould, sleeve I, sleeve II and solid shafting forms. Enclose with last mould and bed die respectively at the solid shafting in the sleeve II by sleeve II in sleeve I of sleeve I, dress, dress among the mold cavity outside and close the upper and lower annular mould cavity that forms, have metal powder or the alloy powder who is used for preparing the powder metallurgy ring shaped workpieces at the die cavity traditional chinese clothing. The utility model has the advantages of the graphite that has good effect of thermal conductivity has been selected for use to this mould is raw and other materials, and mould manufacturing process is simple, low cost, uses this mould to prepare out two rings shape part by a sintering simultaneously, has improved production efficiency and mould life.
Description
Technical field
This utility model relates to powder metallurgical technology, especially relates to a kind of mould preparing powder metallurgy ring-shaped work pieces and using method thereof。
Background technology
Powder metallurgy is using metal dust or alloy powder as raw material, through the step such as cold moudling, hot pressed sintering, prepares the technology containing different process type products。This technology can be not only used for manufacturing special material, can be used for again manufacturing precision parts, is 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 the mould structure complexity of powdered metallurgical material, inconvenient operation, and generally can only prepare a sample in once sintered, reduce die life。
Summary of the invention
The purpose of this utility model is in that to overcome the shortcoming existed in prior art, a kind of simple in construction, the easy to operate mould preparing powder metallurgy ring-shaped work pieces are provided, the technical scheme is that a kind of mould preparing powder metallurgy ring-shaped work pieces, it is characterised in that: described mould includes mold, sleeve I, outer mold, sleeve II, solid shafting and lower mold composition。Outside dies cavity is enclosed with mold and lower mold respectively formed upper and lower ring mould die cavity by sleeve I, the sleeve II being contained in sleeve I, the solid shafting that is contained in sleeve II, equipped with being used for preparing metal dust or the alloy powder of powder metallurgy ring-shaped work pieces in die cavity。
Technical characteristic of the present utility model also has: described mold and lower mold have the locating slot for the solid shafting that is installed。
Technical characteristic of the present utility model also has: the external diameter of described mold and lower mold locating slot is equal with sleeve II external diameter。
Technical characteristic of the present utility model also has: the external diameter on described mold and lower mold chassis is equal with outer mold external diameter。
Technical characteristic of the present utility model also has: described sleeve I external diameter is equal with outer mold internal diameter, and sleeve I internal diameter is equal with sleeve II external diameter。
Technical characteristic of the present utility model also has: described sleeve 4 internal diameter and solid shafting equal diameters。
Technical characteristic of the present utility model also has: the material of described mold, sleeve I, outer mold, sleeve II, solid shafting and lower mold is graphite。
The beneficial effects of the utility model are in that: this mould has selected the graphite with good heat conductive effect to be raw material, mold production process is simple, with low cost, use this mould once sintered can prepare two ring-shaped work pieces simultaneously, improve production efficiency and die life。
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model, and accompanying drawing 2 is generalized section of the present utility model, and accompanying drawing 3 is lower die structure schematic diagram, wherein, 1 is mold, 2 is sleeve, 3 is outer mold, 4 is sleeve, 5 is solid shafting, 6 is lower mold。
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is illustrated。The utility model discloses a kind of mould preparing powder metallurgy ring-shaped work pieces, this mould includes mold 1, sleeve 2, outer mold 3, sleeve 4, solid shafting 5 and lower mold 6 and forms。Wherein outside dies cavity is enclosed with mold 1 and lower mold 6 respectively formed upper and lower ring mould die cavity by sleeve 2, the sleeve 4 being contained in sleeve 2, the solid shafting 5 that is contained in sleeve 4, equipped with being used for preparing metal dust or the alloy powder of powder metallurgy ring-shaped work pieces in described die cavity。
Wherein, mold 1 and lower mold 6 have the locating slot for the solid shafting 5 that is installed。
The external diameter on mold 1 and lower mold 6 chassis is equal with outer mold 3 external diameter。
Considering the requirement of heat conductivity, the material of mold 1, sleeve 2, outer mold 3, sleeve 4, solid shafting 5 and lower mold 6 is graphite。
During use, first solid shafting 5 is placed in the locating slot of lower mold 6；Then the outer surface of sleeve 2 inner surface and lower mold 2 locating slot is coordinated, form lower impressions；Subsequently the quantitative metal dust of mix homogeneously or alloy powder are loaded in lower impressions, to ensure uniformly during dress powder；The lower surface of sleeve 4 is pressed onto the upper surface of metal dust or alloy powder again；The upper surface of sleeve 4, solid shafting 5, sleeve 2 and sleeve 4 upper impression formed load quantitative metal dust or alloy powder；Sleeve 2, sleeve 4, solid shafting 5, lower mold 6 being loaded together in outer mold 3, the minor diameter fit of the external diameter of its middle sleeve 2 and outer mold 3, lower mold 6 chassis coordinates with outer mold 3 lower surface again；The lower surface of mold 1 locating slot being pressed onto the upper surface of metal dust or alloy powder again, and is placed in the locating slot of mold 1 by solid shafting 5, mold 1 chassis coordinates with outer mold 3 upper surface；Last in order to ensure sintering effect, with forcing press to mold 1 upper surface 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 is not limitation of the utility model; this utility model is also not limited to the example above; the change made in essential scope of the present utility model of those skilled in the art, remodeling, interpolation or replacement, fall within protection domain of the present utility model。
Claims (7)
1. the mould preparing powder metallurgy ring-shaped work pieces, it is characterised in that: described mould includes mold (1), sleeve (2), outer mold (3), sleeve (4), solid shafting (5) and lower mold (6) composition;Wherein outside dies cavity is enclosed with mold (1) and lower mold (6) respectively formed upper and lower ring mould die cavity by sleeve (2), the sleeve (4) being contained in sleeve (2), the solid shafting (5) that is contained in sleeve (4), equipped with being used for preparing metal dust or the alloy powder of powder metallurgy ring-shaped work pieces in described die cavity。
2. the mould preparing powder metallurgy ring-shaped work pieces described in claim 1, it is characterised in that: described mold (1) and lower mold (6) have the locating slot for the solid shafting that is installed (5)。
3. the mould preparing powder metallurgy ring-shaped work pieces described in claim 2, it is characterised in that: the external diameter of described mold (1) and lower mold (6) locating slot is equal with sleeve (4) external diameter。
4. the mould preparing powder metallurgy ring-shaped work pieces described in claim 1, it is characterised in that: the external diameter on described mold (1) and lower mold (6) chassis is equal with outer mold (3) external diameter。
5. the mould preparing powder metallurgy ring-shaped work pieces described in claim 1, it is characterised in that: described sleeve (2) external diameter is equal with outer mold (3) internal diameter, and sleeve (2) internal diameter is equal with sleeve (4) external diameter。
6. the mould preparing powder metallurgy ring-shaped work pieces described in claim 5, it is characterised in that: described sleeve (4) internal diameter and solid shafting (5) equal diameters。
7. the mould preparing powder metallurgy ring-shaped work pieces described in claim 1, it is characterised in that: the material of described mold (1), sleeve (2), outer mold (3), sleeve (4), solid shafting (5) and lower mold (6) is graphite。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521023358.2U CN205324724U (en) | 2015-12-11 | 2015-12-11 | Mould of preparation powder metallurgy ring shaped workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521023358.2U CN205324724U (en) | 2015-12-11 | 2015-12-11 | Mould of preparation powder metallurgy ring shaped workpieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205324724U true CN205324724U (en) | 2016-06-22 |
Family
ID=56212477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521023358.2U Expired - Fee Related CN205324724U (en) | 2015-12-11 | 2015-12-11 | Mould of preparation powder metallurgy ring shaped workpieces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205324724U (en) |
-
2015
- 2015-12-11 CN CN201521023358.2U patent/CN205324724U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20161211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |