CN202490933U - Metal powder isostatic cool pressing forming mold - Google Patents
Metal powder isostatic cool pressing forming mold Download PDFInfo
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- CN202490933U CN202490933U CN2012200824421U CN201220082442U CN202490933U CN 202490933 U CN202490933 U CN 202490933U CN 2012200824421 U CN2012200824421 U CN 2012200824421U CN 201220082442 U CN201220082442 U CN 201220082442U CN 202490933 U CN202490933 U CN 202490933U
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Abstract
The utility model discloses a metal powder isostatic cool pressing forming mold, comprising a rubber mold and a combined rigid template packaged in the rubber mold, wherein the rubber mold comprises a hooping ring, a rubber seat and a rubber cover which is matched with the rubber seat; the rubber seat and the rubber cover are hooped together through the hooping ring and formed into a packaging cavity for packaging the combined rigid template; the rigid template comprises an upper template, a first long side template, a second long side template, a lower template, a first wide side template and a second wide side template which are all arranged in the packaging cavity; and the upper template, the first long side template, the second long side template, the lower template, the first wide side template and the second wide side template are all rigid templates and combined into a metal powder filling cavity. The metal powder isostatic cool pressing forming mold disclosed by the utility model has the characteristics of simple structure, reasonable design and convenience for use; through the built-in combined rigid template, the problems of easy deformation, large size deviation, poor surface quality and low yield for plate blanks in the prior art are solved; and besides, the metal powder isostatic cool pressing forming mold has the advantages of smooth surface, uniform density and high yield.
Description
Technical field
The utility model belongs to powder metallurgical technology, specifically relates to a kind of metal dust cold isostatic compaction mould.
Background technology
The base of the plate of refractory metal, rod, pipe and profiled piece, ingot generally are to adopt powder metallurgical technique (P/M) preparation; P/M technology is divided into two big types: one type be traditional under cold conditions to metal dust compression moulding (comprising two kinds of methods of hydraulic press compression molding and cold isostatic compaction), sintering acquisition refractory metal base, ingot then; Another kind of is hot compression moulding, sintering process, promptly in the process that metal dust is pressed, applies certain ambient temperature field, and the compression moulding of metal dust and sintering are carried out synchronously; Heat and other static pressuring processes is used for the shaping of high-compactness, zero-fault parts more, and its equipment input and processing cost are very high.
At present; The method that PM technique is produced slab mainly contains hydraulic press mold pressing and cold isostatic compaction; Wherein to the big specification sintering slab of moulding, compression molding technology adopts isostatic cool pressing compression moulding usually owing to being not suitable for the hydraulic press tonnage demand is too high.The mould of traditional cold isostatic compaction slab is made up of rubber moulding, plug, metal seal mouth ring, fixed in shape punching block etc.During use; Rubber moulding is placed the fixed in shape punching block; Pack into powder and jolt ramming; Then plug is placed in the rubber moulding and under the high pressure effect, infiltrate the metal dust pressed compact with the hydraulic medium that prevents cold isostatic press, hang in the inherent setting pressure of isostatic cool pressing cylinder body, time effect compacted under then with metal seal mouth ring encircling sealing.The shape of slab and size are mainly controlled by rubber moulding and metallic profiles fixed die, generally design the size of glued membrane and fixed in shape punching block according to the powder compaction shrinkage factor according to the final size of product.But rubber moulding is the profile easy deformation when metal dust jolt ramming, and particularly because the powder deadweight causes spontaneous liquidity preference downwards, the slab of institute's moulding is bigger along the difference in thickness of dress powder direction.If closely knit dress powder then is easy to cause rubber moulding bottom protrusion, cause the slab bottom oversize; But, cause slab upper end undersized promptly so-called " compacting drop-head " phenomenon if empty dress powder is easier to then cause that shrinkage factor difference increases between metal dust and the plug.At present, the tabular pressed compact that this kind mode is produced usually along the difference of two-end thickness up and down of pressed compact dress powder direction at 2mm～5mm, and the drop-head phenomenon is in the majority.In addition, be prone to fold, also can cause steel slab surface pit or other defective to occur with the direct acting rubber moulding of metal dust.Above-mentioned shortcoming be cause that sintering slab size difference is big, profile irregularity, surface quality is poor, yield rate is low main cause.
The utility model content
The purpose of the utility model is to overcome above-mentioned deficiency of the prior art; A kind of metal dust cold isostatic compaction mould is provided, its simple in structure, reasonable in design and use easy to operate, through built-in combination rigid template; Solved have in the prior art that slab be prone to produce that distortion, dimensional discrepancy are big, surface quality difference and the low problem of yield rate; Surfacing simultaneously, density is even, and yield rate is high.
For realizing above-mentioned purpose; The technical scheme that the utility model adopts is: a kind of metal dust cold isostatic compaction mould; It is characterized in that: comprise rubber moulding and the combination rigid template that is encapsulated in the said rubber moulding; Said rubber moulding comprises banding ring, rubber base plate and the serum cap that is used with rubber base plate, and said rubber base plate and serum cap are tight together and be formed for encapsulating the package cavity of said combination rigid template through the banding hoop; Said combination rigid template comprises cope match-plate pattern, the first long side template, the second long side template, lower bolster, the first wide side template and the second wide side template that is positioned at said package cavity; Said cope match-plate pattern, the first long side template, the second long side template, lower bolster, the first wide side template and the second wide side template are rigid template, and said cope match-plate pattern, the first long side template, the second long side template, lower bolster, the first wide side template and the second wide side template are combined to form metal dust and fill the chamber.
Above-mentioned a kind of metal dust cold isostatic compaction mould, it is characterized in that: said rubber base plate is meshed through circular groove and round boss with serum cap.
Above-mentioned a kind of metal dust cold isostatic compaction mould is characterized in that: it is square cavity or cylindrical cavity that said metal dust is filled the chamber.
Above-mentioned a kind of metal dust cold isostatic compaction mould, it is characterized in that: said package cavity is a cylindrical cavity.
Above-mentioned a kind of metal dust cold isostatic compaction mould is characterized in that: the outer contour shape of said rubber moulding is cylindrical with the outer contour shape of combination rigid template.
Above-mentioned a kind of metal dust cold isostatic compaction mould, it is characterized in that: the diameter of said package cavity equates with the external diameter of said combination rigid template.
Above-mentioned a kind of metal dust cold isostatic compaction mould, it is characterized in that: the shape of cross section of said rubber base plate is a large semi-circular, the shape of cross section of said serum cap is circular for the smaller part that matches with said large semi-circular.
Above-mentioned a kind of metal dust cold isostatic compaction mould is characterized in that: said banding ring is a metal banding ring.
The utility model compared with prior art has the following advantages:
1, simple in structure, reasonable in design and use easy to operate.
2, the utility model will make up rigid template and be placed on the rubber moulding that is used for sealing, and the combination rigid template directly acts on the metal dust moulding, the easy fold of similar glued membrane can not occur and cause steel slab surface pressed compact defectives such as pit to occur.
3, the utility model is columned glued membrane through profile and inner chamber isostatic cool pressing pressure is evenly conducted to profile is columned combination rigid template; Making contact form under the isostatic cool pressing effect simultaneously is that the rigid template of no containment surfaces contact slides to inner chamber three-dimensional (promptly, front and back and about) relatively, thus realization metal dust three-dimensional synchronous.
4, the slab size of the utility model institute compression moulding is accurate, neat appearance, and surfacing, yield rate is high.
5, the utility model can be used for the tabular pressed compact of moulding, is specially adapted to the accurate slab of compact dimensions requirement.
Through accompanying drawing and embodiment, the utility model is done further detailed description below.
Description of drawings
Longitudinal section when Fig. 1 fills metal dust for the utility model.
Cross-sectional view when Fig. 2 fills metal dust for the utility model.
Fig. 3 is the explosion figure of the utility model combination rigid template.
Description of reference numerals:
The 1-rubber base plate; The 2-cope match-plate pattern; The 3-first long side template;
4-banding ring; The 5-lower bolster; The 6-second long side template;
The 7-metal dust is filled the chamber; The 8-first wide side template; The 9-second wide side template;
The 10-serum cap.
The specific embodiment
Extremely shown in Figure 3 like Fig. 1; The utility model comprises rubber moulding and the combination rigid template that is encapsulated in the said rubber moulding; Said rubber moulding comprises banding ring 4, rubber base plate 1 and the serum cap 10 that is used with rubber base plate 1, and said rubber base plate 1 and serum cap 10 are through banding ring 4 bandings together and be formed for encapsulating the package cavity of said combination rigid template; Said combination rigid template comprises the long side template of the long side template of the cope match-plate pattern 2, first that is positioned at said package cavity 3, second 6, lower bolster 5, the first wide side template 8 and the second wide side template 9; The long side template of the long side template of said cope match-plate pattern 2, first 3, second 6, lower bolster 5, the first wide side template 8 and the second wide side template 9 are rigid template, and the long side template of the long side template of said cope match-plate pattern 2, first 3, second 6, lower bolster 5, the first wide side template 8 and the second wide side template 9 are combined to form metal dust and fill chamber 7.
As shown in Figure 2, in the present embodiment, said rubber base plate 1 is meshed through circular groove and round boss with serum cap 10, and utilizes the sealing of banding ring 4 bandings, in case the infiltration of solution stopping piezodielectric.
Like Fig. 1, Fig. 2 and shown in Figure 3, in the present embodiment, it is square cavity or cylindrical cavity that said metal dust is filled chamber 7, can also be other shapes such as taper, ellipse.
Like Fig. 1, Fig. 2 and shown in Figure 3, in the present embodiment, said package cavity is a cylindrical cavity.
Like Fig. 1, Fig. 2 and shown in Figure 3, in the present embodiment, the outer contour shape of said rubber moulding is cylindrical with the outer contour shape of combination rigid template.
As depicted in figs. 1 and 2, in the present embodiment, the diameter of said package cavity equates with the external diameter of said combination rigid template.
As depicted in figs. 1 and 2, in the present embodiment, the shape of cross section of said rubber base plate 1 is a large semi-circular, and the shape of cross section of said serum cap 10 is circular for the smaller part that matches with said large semi-circular.
In the present embodiment, said banding ring 4 is a metal banding ring.
In the present embodiment, the long side template of the long side template of cope match-plate pattern 2, first 3, second 6, lower bolster 5, the first wide side template 8 and the second wide side template 9 are combined to form the corresponding metal dust of required making slab and fill the chamber.
During use; At first; Rubber base plate 1 horizontal on workbench, is placed on the long side template of the first long side template 3, second 6, lower bolster 5, the first wide side template 8 and the second wide side template 9 in the rubber base plate 1, and the metal dust that is combined to form an end opening is filled chamber 7; Then, the ready metal dust metal dust of evenly packing into is filled in the chamber 7, and be aided with operations such as compacting or vibration and make metal dust fill chamber 7 interior filled with metal powder; Secondly, cope match-plate pattern 2 is contained in metal dust fills upper end in the chamber 7, accomplish the rigid template combination; Once more, serum cap 10 is contained in rubber base plate 1 top, and the boss of serum cap 10 and the groove of rubber base plate 1 are meshing with each other, and adopt the sealing of banding ring 4 bandings; At last, the above-mentioned mould that assembles is put into the isostatic cool pressing cylinder body at the pressure of setting, isostatic compaction under the dwell time, hang out after the pressure release, the demoulding promptly obtains the slab of moulding.Repeat above-mentioned steps, can realize continuous production.In the said process,, can place many group moulds at every turn and suppress, to enhance productivity according to size that waits the static pressure cylinder body and mould size.
Compare with traditional fixed in shape punching block, glued membrane mould structure, the utility model will make up rigid template and be placed on rubber moulding inside, make the combination rigid template directly act on the metal dust of required moulding; Make that the slab size of institute's moulding is accurate; Neat appearance, surfacing, density is even.In addition, because therefore the contact of any two templates that contact has realized being free to slide of template for no containment surfaces contact, be convenient to manipulate.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of the utility model technical scheme.
Claims (8)
1. metal dust cold isostatic compaction mould; It is characterized in that: comprise rubber moulding and the combination rigid template that is encapsulated in the said rubber moulding; Said rubber moulding comprises banding ring (4), rubber base plate (1) and the serum cap (10) that is used with rubber base plate (1), and said rubber base plate (1) and serum cap (10) are through banding ring (4) banding together and be formed for encapsulating the package cavity of said combination rigid template; Said combination rigid template comprises cope match-plate pattern (2), the first long side template (3), the second long side template (6), lower bolster (5), the first wide side template (8) and the second wide side template (9) that is positioned at said package cavity; Said cope match-plate pattern (2), the first long side template (3), the second long side template (6), lower bolster (5), the first wide side template (8) and the second wide side template (9) are rigid template, and said cope match-plate pattern (2), the first long side template (3), the second long side template (6), lower bolster (5), the first wide side template (8) and the second wide side template (9) are combined to form metal dust and fill chamber (7).
2. according to the described a kind of metal dust cold isostatic compaction mould of claim 1, it is characterized in that: said rubber base plate (1) is meshed through circular groove and round boss with serum cap (10).
3. according to claim 1 or 2 described a kind of metal dust cold isostatic compaction moulds, it is characterized in that: said metal dust is filled chamber (7) and is square cavity or cylindrical cavity.
4. according to claim 1 or 2 described a kind of metal dust cold isostatic compaction moulds, it is characterized in that: said package cavity is a cylindrical cavity.
5. according to the described a kind of metal dust cold isostatic compaction mould of claim 4, it is characterized in that: the outer contour shape of said rubber moulding is cylindrical with the outer contour shape of combination rigid template.
6. according to the described a kind of metal dust cold isostatic compaction mould of claim 5, it is characterized in that: the diameter of said package cavity equates with the external diameter of said combination rigid template.
7. according to claim 1 or 2 described a kind of metal dust cold isostatic compaction moulds; It is characterized in that: the shape of cross section of said rubber base plate (1) is a large semi-circular, and the shape of cross section of said serum cap (10) is circular for the smaller part that matches with said large semi-circular.
8. according to claim 1 or 2 described a kind of metal dust cold isostatic compaction moulds, it is characterized in that: said banding ring (4) is a metal banding ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200824421U CN202490933U (en) | 2012-03-07 | 2012-03-07 | Metal powder isostatic cool pressing forming mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200824421U CN202490933U (en) | 2012-03-07 | 2012-03-07 | Metal powder isostatic cool pressing forming mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202490933U true CN202490933U (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200824421U Expired - Lifetime CN202490933U (en) | 2012-03-07 | 2012-03-07 | Metal powder isostatic cool pressing forming mold |
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| CN (1) | CN202490933U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990772A (en) * | 2012-12-14 | 2013-03-27 | 武汉钢铁(集团)公司 | Fireproof brick isostatic pressing forming die |
| CN104001913A (en) * | 2014-05-29 | 2014-08-27 | 金堆城钼业股份有限公司 | Press piece type sealing device and method for manufacturing large molybdenum crucible |
| CN105945278A (en) * | 2016-04-29 | 2016-09-21 | 泉州众志金刚石工具有限公司 | A kind of diamond tool mold and its dismounting method |
| CN110328739A (en) * | 2019-08-16 | 2019-10-15 | 刘得顺 | A kind of production method of ceramics turbo |
| CN111203961A (en) * | 2020-03-13 | 2020-05-29 | 广州市尤特新材料有限公司 | Forming die and method for planar ceramic target |
| CN116442583A (en) * | 2023-03-21 | 2023-07-18 | 宝丰县天伟石墨制品有限公司 | Using method of cold isostatic pressing graphite product mold capable of improving regularity |
-
2012
- 2012-03-07 CN CN2012200824421U patent/CN202490933U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990772A (en) * | 2012-12-14 | 2013-03-27 | 武汉钢铁(集团)公司 | Fireproof brick isostatic pressing forming die |
| CN102990772B (en) * | 2012-12-14 | 2015-02-11 | 武汉钢铁(集团)公司 | Fireproof brick isostatic pressing forming die |
| CN104001913A (en) * | 2014-05-29 | 2014-08-27 | 金堆城钼业股份有限公司 | Press piece type sealing device and method for manufacturing large molybdenum crucible |
| CN105945278A (en) * | 2016-04-29 | 2016-09-21 | 泉州众志金刚石工具有限公司 | A kind of diamond tool mold and its dismounting method |
| CN105945278B (en) * | 2016-04-29 | 2018-01-12 | 泉州众志金刚石工具有限公司 | A method for disassembling and assembling a diamond tool mold |
| CN108097951A (en) * | 2016-04-29 | 2018-06-01 | 泉州众志金刚石工具有限公司 | A kind of diamond cutter mould |
| CN108097951B (en) * | 2016-04-29 | 2020-10-09 | 泉州众志金刚石工具有限公司 | Diamond cutter die |
| CN110328739A (en) * | 2019-08-16 | 2019-10-15 | 刘得顺 | A kind of production method of ceramics turbo |
| CN111203961A (en) * | 2020-03-13 | 2020-05-29 | 广州市尤特新材料有限公司 | Forming die and method for planar ceramic target |
| CN116442583A (en) * | 2023-03-21 | 2023-07-18 | 宝丰县天伟石墨制品有限公司 | Using method of cold isostatic pressing graphite product mold capable of improving regularity |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |
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| CX01 | Expiry of patent term |