CN219520481U - Degreasing sintering jig - Google Patents
Degreasing sintering jig Download PDFInfo
- Publication number
- CN219520481U CN219520481U CN202320441483.3U CN202320441483U CN219520481U CN 219520481 U CN219520481 U CN 219520481U CN 202320441483 U CN202320441483 U CN 202320441483U CN 219520481 U CN219520481 U CN 219520481U
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- CN
- China
- Prior art keywords
- product
- sintering jig
- degreasing sintering
- supporting block
- degreasing
- 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.)
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Links
- 238000005245 sintering Methods 0.000 title claims abstract description 32
- 238000005238 degreasing Methods 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims description 5
- 229910052573 porcelain Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 9
- 238000001746 injection moulding Methods 0.000 abstract description 9
- 239000000843 powder Substances 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 5
- 238000010923 batch production Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004663 powder metallurgy Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Powder Metallurgy (AREA)
Abstract
The utility model discloses a degreasing sintering jig which comprises a supporting block, wherein the upper top surface of the supporting block is a concave profiling cambered surface, and round corners are formed by rounding the edges of the two sides of the upper top surface of the supporting block. The profiling cambered surface on the degreasing sintering jig can well support the arc-shaped thin-wall structure of the metal powder injection molding product, effectively improve the placing problem of the product and the defect of product deformation, ensure the appearance radian and the appearance dimension precision of the product, and has simple processing technology, suitability for batch production and easy storage management and recycling.
Description
Technical Field
The utility model relates to the technical field of metal powder injection molding, in particular to a degreasing sintering jig.
Background
The metal powder injection molding technology (Metal Injection Molding, abbreviated as MIM technology) is a novel manufacturing technology combining powder metallurgy and plastic forming technology. The process technology not only has the advantages of few processes, no cutting or less cutting, high economic benefit and the like of the conventional powder metallurgy process, but also overcomes the defects of low density, uneven material quality, low mechanical property, difficult molding of thin wall and complex structure of the conventional powder metallurgy process, and is particularly suitable for mass production of small, complex and metal parts with special requirements. The adhesive of the just-formed product needs to be removed through a degreasing-sintering process, and the product is influenced by self gravity and friction force in the shrinkage process, and is easy to deform and crack even if no good sintering jig support exists for the product with a complex structure, particularly an arc-shaped thin-wall structure.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: a degreasing sintering jig for a metal powder injection molded product having an arc-shaped thin-wall structure is provided.
In order to solve the technical problems, the utility model adopts the following technical scheme: the degreasing sintering jig comprises a supporting block, wherein the upper top surface of the supporting block is a concave profiling cambered surface, and round corners are formed at the edges of the two sides of the upper top surface of the supporting block.
Further, the radius of the profiling cambered surface is 22-22.2mm.
Further, the radius of the triangular surface is greater than or equal to 1.5mm.
Further, the material of the supporting block is 99 porcelain.
Further, the surface finish of the profiling cambered surface is smaller than or equal to Ra1.2.
Further, the width of the supporting block is 19.45-19.55mm.
Further, the device also comprises a rectangular base, wherein the bearing block is arranged on the top surface of the base, and two side surfaces of the base protrude out of two side surfaces of the bearing block.
Further, the base station and the bearing block are of an integrated structure.
Further, the minimum height difference between the profiling cambered surface and the top surface of the base platform is greater than or equal to 4.13mm.
The utility model has the beneficial effects that: the profiling cambered surface on the degreasing sintering jig can well support the arc-shaped thin-wall structure of the metal powder injection molding product, effectively improve the placing problem of the product and the defect of product deformation, ensure the appearance radian and the appearance dimension precision of the product, and has simple processing technology, suitability for batch production and easy storage management and recycling.
Drawings
Fig. 1 is a schematic structural diagram of a degreasing and sintering jig (assembly of a product to be degreased and sintered) according to an embodiment of the present utility model;
fig. 2 is a side view of a degreasing and sintering jig (assembly of a product to be degreased and sintered) according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a degreasing and sintering fixture (assembly of a product to be degreased and sintered) according to a second embodiment of the present utility model;
fig. 4 is a side view of a degreasing and sintering tool (assembly of a product to be degreased and sintered) according to a second embodiment of the present utility model.
Description of the reference numerals:
1. a support block; 11. profiling cambered surfaces; 12. round angle surface;
2. a base station;
3. an arc-shaped plate;
4. a block structure.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 4, a degreasing and sintering jig comprises a supporting block 1, wherein an upper top surface of the supporting block 1 is a concave profiling cambered surface 11, and edges of two sides of the upper top surface of the supporting block 1 are rounded to form a rounded corner surface 12.
From the above description, the beneficial effects of the utility model are as follows: the profiling cambered surface 11 on the degreasing sintering jig can well support the arc-shaped thin-wall structure of a metal powder injection molding product, effectively improve the placing problem of the product and the defect of product deformation, ensure the appearance radian and the appearance dimension precision of the product, and has simple processing technology, suitability for batch production and easy storage management and recycling.
Further, the radius of the profiling cambered surface 11 is 22-22.2mm.
Further, the radius of the rounded surface 12 is greater than or equal to 1.5mm.
Further, the material of the supporting block 1 is 99 porcelain.
From the above description, the 99 porcelain has high mechanical strength and long service life when used as a degreasing and sintering jig.
Further, the surface finish of the profiling cambered surface 11 is less than or equal to ra1.2.
From the above description, the higher finish requirement of the profiling cambered surface 11 is beneficial to maintaining the surface quality of the product.
Further, the width of the supporting block 1 is 19.45-19.55mm.
Further, the support block is further provided with a rectangular base 2, the support block 1 is arranged on the top surface of the base 2, and two side surfaces of the base 2 protrude out of two side surfaces of the support block 1.
As can be seen from the above description, the base 2 can raise the height of the supporting block 1, so that the two ends of the product to be sintered are suspended and erected on the profiling cambered surface 11; the two side surfaces of the base 2 protrude out of the two side surfaces of the supporting block 1, so that the sintering jig can be conveniently taken and placed.
Further, the base 2 and the supporting block 1 are integrally formed.
From the above description, the integrally formed integrated structure can improve the machining efficiency of the part and the overall dimensional accuracy of the part.
Further, the minimum height difference between the profiling cambered surface 11 and the top surface of the base station 2 is greater than or equal to 4.13mm.
Example 1
Referring to fig. 1 and 2, a first embodiment of the utility model is as follows: a degreasing sintering jig is used for supporting a metal powder injection molding product with an arc-shaped thin-wall structure so as to facilitate degreasing sintering of the product.
Specifically, the metal powder injection molding product to be degreased and sintered in this embodiment includes an arc plate 3 and a block structure 4, two ends of the arc plate 3 are respectively provided with one block structure 4, and two block structures 4 are both located on one side of the arc plate 3 protruding, and a rounded corner is formed at a joint of the block structure 4 and the arc plate 3. The two block structures 4 are symmetrically arranged with the arc-shaped plate 3 as a center.
The degreasing sintering jig comprises a supporting block 1, wherein the upper top surface of the supporting block 1 is a concave profiling cambered surface 11, round corners are formed at the edges of the two sides of the upper top surface of the supporting block 1 to form round corner surfaces 12, and the two sides of the supporting block 1 are vertical planes. In this embodiment, the two rounded surfaces 12 are symmetrically arranged about the contoured arcuate surface 11, and in other embodiments, the radii of the two rounded surfaces 12 may be unequal. The radius of the rounded corner surface 12 is greater than or equal to the radius of the rounded corner between the arcuate plate 3 and the block-like structure 4. It is easy to understand that the profiling cambered surface 11 is used for supporting the arc plate 3 of the degreasing product to be sintered; the rounded surface 12 can prevent the product from contacting the edges of the two sides of the supporting block 1 in the shrinkage process, so that the product is deformed and even cracked.
In this embodiment, the radius of the profiling cambered surface 11 is 22-22.2mm. The radius of the rounded corner surface 12 is greater than or equal to 1.5mm.
Preferably, the material of the bearing block 1 is 99 porcelain.
Preferably, the surface finish of the profiling cambered surface 11 is less than or equal to Ra1.2.
Preferably, the width of the bearing block 1 is 19.45-19.55mm, and the length of the bearing block 1 is 95mm.
Preferably, the minimum height difference between the profiling cambered surface 11 and the bottom surface of the bearing block 1 is greater than or equal to 4.13mm.
Example two
Referring to fig. 3 and 4, a second embodiment of the present utility model is a further improvement based on the first embodiment, and is different from the first embodiment in that: the degreasing sintering jig further comprises a rectangular base 2, the bearing block 1 is arranged on the top surface of the base 2, and two side surfaces of the base 2 protrude out of two side surfaces of the bearing block 1. In this embodiment, the number of the base stations 2 and the number of the supporting blocks 1 are set in a one-to-one correspondence, and in other embodiments, a plurality of supporting blocks 1 may be disposed on one base station 2.
Preferably, the base 2 and the supporting block 1 are integrally formed.
Preferably, the minimum height difference between the profiling cambered surface 11 and the top surface of the base station 2 is greater than or equal to 4.13mm.
In summary, the profiling cambered surface on the degreasing sintering jig can well support the cambered thin-wall structure of the metal powder injection molding product, effectively improve the placing problem of the product and the defect of product deformation, ensure the appearance radian and the appearance dimension precision of the product, and has simple processing technology, suitability for batch production and easy storage management and recycling.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (9)
1. The utility model provides a degreasing sintering tool which characterized in that: the bearing block comprises a bearing block, wherein the upper top surface of the bearing block is a concave profiling cambered surface, and round corners are formed at the edges of the two sides of the upper top surface of the bearing block.
2. The degreasing sintering jig of claim 1, wherein: the radius of the profiling cambered surface is 22-22.2mm.
3. The degreasing sintering jig of claim 1, wherein: the radius of the triangular surface is larger than or equal to 1.5mm.
4. The degreasing sintering jig of claim 1, wherein: the material of the supporting block is 99 porcelain.
5. The degreasing sintering jig of claim 1, wherein: the surface finish of the profiling cambered surface is smaller than or equal to Ra1.2.
6. The degreasing sintering jig of claim 1, wherein: the width of the supporting block is 19.45-19.55mm.
7. The degreasing sintering jig of claim 1, wherein: the support block is arranged on the top surface of the base, and two side surfaces of the base protrude out of two side surfaces of the support block.
8. The degreasing sintering jig of claim 7, wherein: the base platform and the bearing block are of an integrated structure.
9. The degreasing sintering jig of claim 7, wherein: the minimum height difference between the profiling cambered surface and the top surface of the base platform is greater than or equal to 4.13mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320441483.3U CN219520481U (en) | 2023-03-01 | 2023-03-01 | Degreasing sintering jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320441483.3U CN219520481U (en) | 2023-03-01 | 2023-03-01 | Degreasing sintering jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219520481U true CN219520481U (en) | 2023-08-15 |
Family
ID=87629462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320441483.3U Active CN219520481U (en) | 2023-03-01 | 2023-03-01 | Degreasing sintering jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219520481U (en) |
-
2023
- 2023-03-01 CN CN202320441483.3U patent/CN219520481U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |