CN203917913U - A kind of cold isostatic compaction mould - Google Patents
A kind of cold isostatic compaction mould Download PDFInfo
- Publication number
- CN203917913U CN203917913U CN201420368869.7U CN201420368869U CN203917913U CN 203917913 U CN203917913 U CN 203917913U CN 201420368869 U CN201420368869 U CN 201420368869U CN 203917913 U CN203917913 U CN 203917913U
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- China
- Prior art keywords
- side plate
- short side
- long side
- dynamic model
- rubber sleeve
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- Expired - Lifetime
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- 238000005056 compaction Methods 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 19
- 238000004080 punching Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 5
- 235000015110 jellies Nutrition 0.000 abstract description 2
- 239000008274 jelly Substances 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 20
- 239000000843 powder Substances 0.000 description 15
- 238000003825 pressing Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000748 compression moulding Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000003870 refractory metal Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 235000016768 molybdenum Nutrition 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 241001010081 Metallus Species 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
The utility model discloses a kind of cold isostatic compaction mould, comprise seal rubber sleeve and the punching block setting within it, seal rubber sleeve is comprised of rubber sleeve and rubber stopper, punching block is comprised of the upper dynamic model and the lower dynamic model that combine former and be arranged in combination former, combination former is by long side plate, short side plate, tightening circle and lower tight loop forms, long side plate and short side plate all vertically arrange, the upper end of long side plate and short side plate is by tightening circle banding, the lower end of long side plate and short side plate is by lower tight loop banding, long side plate, short side plate, the cavity that upper dynamic model and lower dynamic model form is that metal dust is filled chamber, long side plate and short side plate are steel plate, upper dynamic model and lower dynamic model are punching block.The utility model meets large scale pressed compact high pressure press power demand, overcome the moulding of conventional soft jelly mould jacket and caused the shortcoming that pressed compact shape, dimensional discrepancy are large, surface quality is poor and finished material rate is lower, realize the precise forming of larger size panel, ingot blank, base substrate shape is regular, yield rate is high.
Description
Technical field
The utility model belongs to powder metallurgical technology, is specifically related to a kind of cold isostatic compaction mould.
Background technology
PM technique is that logging material is prepared with part forming in one, are shaped at energy-conservation, material-saving, efficient, near clean (end), without the advanced manufacturing technology of (lacking) pollution, in refractory metal material and part manufacturing industry thereof, there is irreplaceable status and effect, become the cutting edge technology of contemporary material science development.At present PM technique is also just towards high densification, high performance, integrated, optimization and the future development such as low-cost.In recent years, a series of New Technologies In Powder Metallu Rgies continue to bring out.
Die wall lubrication technology replaces the lubricated focus that has become powder forming research and development of powder.Die wall lubrication technology, as a kind of technology of easy grafting, with the combination of other forming techniques, will provide more efficiently approach for powder high densification precision form.
High pressure temperature and pressure technology is on the basis of powder compaction, temperature-pressure formation, a kind of Novel powder metallurgy parts near-net-shape technology putting forward.In PMC2TEC2002 international conference, the Mikio Kondoh of Toyota Motor company discloses and utilizes temperature and pressure, die wall lubrication and high pressure press power, makes almost complete fine and close iron-based powder pressed compact.
High velocity compacted technology is the new technology that Sweden Hoganas company released in calendar year 2001.This technology is the result of a kind of limiting equation extension of the compressing technology of conventional powder, fast 500～1000 times than traditional compact technique, is suitable for producing in enormous quantities parts.At present, utilize this technology can only prepare shape comparatively simple and have the goods of one-level step, die cost is expensive simultaneously, and mold shape and life-span thereof are also the bottlenecks of this technology fast development.
The continuous appearance of New Technologies In Powder Metallu Rgy, new technology, except improving properties of product, increasing new product, also will provide new technology for further expanding the range of application of powdered metal parts.But at present mostly still in laboratory stage or trial production stage, need special-purpose main equipment, or the powder characteristics that is suitable for new technology application need further research.Production application apart from refractory metals such as tungsten, molybdenums still has a certain distance.
The base of the plate of refractory metal, rod, pipe and profiled piece, ingot are generally to adopt powder metallurgical technique (P/M) preparation.At present, the method of PM technique base mainly contains hydraulic press mold pressing and cold isostatic compaction, hydraulic press mold pressing is suitable for small dimension pressed compact, and it is molded mostly to be unidirectional pressing die, although compression molding production efficiency is high, surface smoothness is high, but the molybdenum blank elastic after effect effect that this molding mode obtains is obvious, internal stress large and be easy to form internal fissure, causes the defect that is difficult to elimination.When large-sized pressed compact is during by the compression molding of conventional hydraulic machine, because hydraulic press tonnage is too low, make pressed compact can not there is enough intensity, usually cause pressed compact damage in pressing process, particularly in moulding and knockout course.Therefore, be necessary that under high tonnage, (surpassing 200Mpa) suppresses powder, avoids damaging blank in moulding and knockout course to obtain high strength pressed compact.Yet, for the blank of large specification, industrial realize pressure higher than the hydraulic press compression molding equipment needed thereby of 200Mpa, drop into huge, therefore adopt isostatic cool pressing (CIP) flexible glue film compressing more.Isostatic cool pressing applies impartial pressure in all directions, and blank Density Distribution is more even, and pressurize pressure release speed can be controlled, and elastic after effect and the internal stress of blank are relatively little.But because powder deadweight causes spontaneous liquidity preference downwards, be difficult to control, cause the slab of the quiet moulding such as cold larger along the difference in thickness of dress powder direction, if misoperation cause flexible glue film fold and be also easy to cause surface to occur pit or other defect, yield rate is lower.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, a kind of cold isostatic compaction mould is provided, it is simple in structure, easy to operate, by the built-in punching block of seal rubber sleeve, meet large scale pressed compact high pressure press power demand, overcome the moulding of conventional soft jelly mould jacket and caused the shortcoming that pressed compact shape, dimensional discrepancy are large, surface quality is poor and finished material rate is lower, thereby in cold isostatic press, realize the precise forming of larger size panel, ingot blank, base substrate shape is regular simultaneously, yield rate is high.
For achieving the above object, the technical solution adopted in the utility model is: a kind of cold isostatic compaction mould, it is characterized in that: comprise seal rubber sleeve and be arranged on the punching block in described seal rubber sleeve, described seal rubber sleeve is comprised of rubber sleeve and rubber stopper, described rubber stopper be arranged on rubber sleeve top and with rubber sleeve fitted seal, described punching block is comprised of the upper dynamic model and the lower dynamic model that combine former and be arranged in combination former, described combination former is by long side plate, short side plate, tightening circle and lower tight loop forms, described long side plate and short side plate all vertically arrange, the upper end of described long side plate and short side plate is by tightening circle banding, the lower end of described long side plate and short side plate is by lower tight loop banding, described long side plate, short side plate, the cavity that upper dynamic model and lower dynamic model form is that metal dust is filled chamber, it is corresponding with the blank shape of required making that described metal dust is filled chamber, described long side plate and short side plate are steel plate, described upper dynamic model and lower dynamic model are punching block.
Above-mentioned a kind of cold isostatic compaction mould, is characterized in that: described in tighten circle and be 7 °～9 ° with the tapering that coordinates of the upper end of long side plate and short side plate, described lower tight loop is 7 °～9 ° with the tapering that coordinates of the lower end of long side plate and short side plate.
Above-mentioned a kind of cold isostatic compaction mould, is characterized in that: it is square cavity that described metal dust is filled chamber.
Above-mentioned a kind of cold isostatic compaction mould, is characterized in that: the quantity of described long side plate and short side plate equates and is two, before and after two block length side plates, is symmetrical arranged, and two short side plates are symmetrical set.
The utility model compared with prior art has the following advantages:
1, the utility model is simple in structure, reasonable in design and use easy to operate.
2, the utility model is compared with traditional isostatic cool pressing coating film forming mould, in isostatic cool pressing, utilize the punching block being built in seal rubber sleeve to directly act on metal dust moulding, the compacting defects such as common pressed compact surface crater, drop-head have been eliminated, the blank shape of institute's moulding is regular, size is accurate, and yield rate is high.
3, the utility model is compared with traditional punching block, by outside seal gum cover, isostatic cool pressing pressure is evenly passed on the upper dynamic model and lower dynamic model of punching block, make dynamic model and lower dynamic model under isostatic cool pressing effect along the upper and lower relative sliding of punching block inner chamber, thereby realize the two-way compacting of metal dust under high press power, the slab even density of institute's moulding, intensity is high.
4, the utility model can be used for molding massive pressed compact, is specially adapted to the accurate slab of compact dimensions requirement and large-sized plates base, and the pressed compact shape of institute's moulding is regular, and yield rate is high.
Below by drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the B-B cutaway view of Fig. 1.
Description of reference numerals:
1-tighten circle; 2-lower dynamic model; 3-lower tight loop;
4-upper dynamic model; 5-rubber stopper; 6-metal dust is filled chamber;
7-rubber sleeve; 8-long side plate; 9-short side plate.
The specific embodiment
As shown in Figure 1 to Figure 3, the utility model comprises seal rubber sleeve and is arranged on the punching block in described seal rubber sleeve, described seal rubber sleeve is comprised of rubber sleeve 7 and rubber stopper 5, described rubber stopper 5 be arranged on rubber sleeve 7 top and with rubber sleeve 7 fitted seal, described punching block is comprised of the upper dynamic model 4 and the lower dynamic model 2 that combine former and be arranged in combination former, described combination former is by long side plate 8, short side plate 9, tighten circle 1 and lower tight loop 3 compositions, described long side plate 8 and short side plate 9 all vertically arrange, the upper end of described long side plate 8 and short side plate 9 is by tightening circle 1 banding, the lower end of described long side plate 8 and short side plate 9 is by lower tight loop 3 bandings, described long side plate 8, short side plate 9, the cavity that upper dynamic model 4 and lower dynamic model 2 form is that metal dust is filled chamber 6, it is corresponding with the blank shape of required making that described metal dust is filled chamber 6, described long side plate 8 and short side plate 9 are steel plate, described upper dynamic model 4 and lower dynamic model 2 are punching block.
In the present embodiment, described in tighten circle 1 and be 7 °～9 ° with the tapering that coordinates of the upper end of long side plate 8 and short side plate 9, described lower tight loop 3 is 7 °～9 ° with the tapering that coordinates of the lower end of long side plate 8 and short side plate 9; Have certain cooperation tapering, making to tighten circle 1, lower tight loop 3 can good banding by long side plate 8 and short side plate 9.
In the present embodiment, it be square cavity that described metal dust is filled chamber 6, and the quantity of described long side plate 8 and short side plate 9 is equal and be two, and two block length side plate 8 front and back are symmetrical arranged, and two short side plates 9 are symmetrical set; It can also be cylindrical cavity that metal dust is filled chamber 6.
Operation principle of the present utility model is: during use, lower dynamic model 2 working faces upward horizontal on workbench, and by long side plate 8, short side plate 9, tighten circle 1 and lower tight loop 3 combines with lower dynamic model 2, form metal dust and fill chamber 6; Evenly pack ready metal dust into metal dust and fill in chamber 6, and be aided with the operations such as compacting or vibration and make the interior filled with metal powder in metal dust filling chamber 6; Upper dynamic model 4 is contained in to metal dust and fills interior upper end, chamber 6, complete punching block combination; The punching block that installs powder is vertically hung in rubber sleeve 7, adopt rubber stopper 5 sealings, to prevent that hydraulic medium from infiltrating; By the above-mentioned mould assembling put into isostatic cool pressing cylinder body reset pressure, compressing under the dwell time; After pressure release, hang out, the demoulding obtains the slab of moulding.Repeat above-mentioned steps, can realize continuous production.According to the size of isostatic cool pressing cylinder body size and mould, can organize mould to put into isostatic cool pressing compressing simultaneously more, can significantly improve production efficiency.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure transformation of above embodiment being done according to the utility model technical spirit, all still belongs in the protection domain of technical solutions of the utility model.
Claims (4)
1. a cold isostatic compaction mould, it is characterized in that: comprise seal rubber sleeve and be arranged on the punching block in described seal rubber sleeve, described seal rubber sleeve is comprised of rubber sleeve (7) and rubber stopper (5), described rubber stopper (5) be arranged on rubber sleeve (7) top and with rubber sleeve (7) fitted seal, described punching block is comprised of the upper dynamic model (4) and the lower dynamic model (2) that combine former and be arranged in combination former, described combination former is by long side plate (8), short side plate (9), tightening circle (1) and lower tight loop (3) forms, described long side plate (8) and short side plate (9) all vertically arrange, the upper end of described long side plate (8) and short side plate (9) is by tightening circle (1) banding, the lower end of described long side plate (8) and short side plate (9) is by lower tight loop (3) banding, described long side plate (8), short side plate (9), the cavity that upper dynamic model (4) and lower dynamic model (2) form is that metal dust is filled chamber (6), it is corresponding with the blank shape of required making that described metal dust is filled chamber (6), described long side plate (8) and short side plate (9) are steel plate, described upper dynamic model (4) and lower dynamic model (2) are punching block.
2. according to a kind of cold isostatic compaction mould claimed in claim 1, it is characterized in that: described in tighten circle (1) and be 7 °～9 ° with the tapering that coordinates of the upper end of long side plate (8) and short side plate (9), described lower tight loop (3) is 7 °～9 ° with the tapering that coordinates of the lower end of long side plate (8) and short side plate (9).
3. according to a kind of cold isostatic compaction mould described in claim 1 or 2, it is characterized in that: described metal dust is filled chamber (6) for square cavity.
4. according to a kind of cold isostatic compaction mould claimed in claim 3, it is characterized in that: the quantity of described long side plate (8) and short side plate (9) equates and is two, before and after two block length side plates (8), be symmetrical arranged, two short side plates (9) are symmetrical set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420368869.7U CN203917913U (en) | 2014-07-05 | 2014-07-05 | A kind of cold isostatic compaction mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420368869.7U CN203917913U (en) | 2014-07-05 | 2014-07-05 | A kind of cold isostatic compaction mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203917913U true CN203917913U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420368869.7U Expired - Lifetime CN203917913U (en) | 2014-07-05 | 2014-07-05 | A kind of cold isostatic compaction mould |
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| Country | Link |
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| CN (1) | CN203917913U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270503A (en) * | 2015-05-20 | 2017-01-04 | 辽宁爱尔创生物材料有限公司 | A kind of thin wall wrap model for cold isostatic compaction technique and cladding method thereof |
| CN106853524A (en) * | 2015-12-08 | 2017-06-16 | 北京有色金属研究总院 | A kind of large-area flat-plate cold isostatic pressing method |
| CN109604591A (en) * | 2019-01-31 | 2019-04-12 | 中南大学 | A kind of the near-net forming mold and its near-net forming method of silumin shell |
| CN110126398A (en) * | 2019-07-01 | 2019-08-16 | 中国工程物理研究院材料研究所 | A kind of big L/D ratio product cold isostatic compaction packaging structure and its filling-material structure |
| CN111014665A (en) * | 2019-12-27 | 2020-04-17 | 哈尔滨工程大学 | Waterproof method applied to isostatic pressing die |
| CN112372131A (en) * | 2020-11-02 | 2021-02-19 | 中国航空制造技术研究院 | Diffusion connection preparation method of titanium alloy hollow structure |
-
2014
- 2014-07-05 CN CN201420368869.7U patent/CN203917913U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270503A (en) * | 2015-05-20 | 2017-01-04 | 辽宁爱尔创生物材料有限公司 | A kind of thin wall wrap model for cold isostatic compaction technique and cladding method thereof |
| CN106853524A (en) * | 2015-12-08 | 2017-06-16 | 北京有色金属研究总院 | A kind of large-area flat-plate cold isostatic pressing method |
| CN109604591A (en) * | 2019-01-31 | 2019-04-12 | 中南大学 | A kind of the near-net forming mold and its near-net forming method of silumin shell |
| CN110126398A (en) * | 2019-07-01 | 2019-08-16 | 中国工程物理研究院材料研究所 | A kind of big L/D ratio product cold isostatic compaction packaging structure and its filling-material structure |
| CN110126398B (en) * | 2019-07-01 | 2021-06-04 | 中国工程物理研究院材料研究所 | Large length-diameter ratio product cold isostatic pressing packaging structure and filling structure thereof |
| CN111014665A (en) * | 2019-12-27 | 2020-04-17 | 哈尔滨工程大学 | Waterproof method applied to isostatic pressing die |
| CN112372131A (en) * | 2020-11-02 | 2021-02-19 | 中国航空制造技术研究院 | Diffusion connection preparation method of titanium alloy hollow structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |