CN106239961A - A kind of dry type pseudo isostatic pressing method and device - Google Patents
A kind of dry type pseudo isostatic pressing method and device Download PDFInfo
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- CN106239961A CN106239961A CN201610721863.7A CN201610721863A CN106239961A CN 106239961 A CN106239961 A CN 106239961A CN 201610721863 A CN201610721863 A CN 201610721863A CN 106239961 A CN106239961 A CN 106239961A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
- B30B5/02—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
- B30B15/022—Moulds for compacting material in powder, granular of pasta form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B7/00—Presses characterised by a particular arrangement of the pressing members
- B30B7/04—Presses characterised by a particular arrangement of the pressing members wherein pressing is effected in different directions simultaneously or in turn
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The present invention relates to powder pressing technical field, be specifically related to a kind of dry type pseudo isostatic pressing method and device.The pseudo isostatic pressing method of the present invention is the high pressure chest being placed in by the elastic mould putting into raw material to be pressed and being full of the rigid solid state quasi-fluid with abundant mobility, the pressure putting on high pressure chest is uniformly transferred to elastic mould all surface by rigid solid state quasi-fluid, realize the quasi-iso static pressing to raw material to be pressed to suppress, can be widely applied in the design of various isostatic pressing machine.The high-pressure chamber of the quasi-iso static pressing device of the present invention is positioned in pressure-bearing frame, and rigidly fixes with pressure-bearing frame, utilizes conventional tablet machines to apply pressure to compression leg, can complete quasi-iso static pressing compacting.The dry type quasi-iso static pressing drawing method of the present invention and device, solve that existing isostatic pressing machine is high to high-pressure chamber seal request, liquid medium easily leaks the uneasy congruence problem caused, and moulded products is easily stressed the problem that Transfer Medium pollutes；Apparatus of the present invention volume is little, simple to operation efficiently.
Description
Technical field
The present invention relates to powder pressing technical field, be specifically related to a kind of dry type pseudo isostatic pressing method and device.
Background technology
Powder forming includes powder pressing and the big class of the special shaping of powder two.
Powder pressing the most axially (or radial direction) stamping of powder shaping is a kind of common method of powder forming, is
Use the mould (usually punching block) of definite shape, make powder be pressed under the effect of additional axially (or radial direction) pressure
There is certain density, intensity, the method with the briquet of designated shape.Powder pressing has technical maturity, safety
Good, advantage simple to operation, it may have the uneven briquet Density inhomogeneity necessarily caused of pressure transmission, and be not suitable for
The shortcomings such as labyrinth briquet compacting.
Isostatic pressing method belongs to the special manufacturing process of powder, by using fluid as pressure transmission medium so that
The method can be not only used for the briquet of various complicated shape and shapes, and also has the briquet obtained due to uniformly transferring of pressure
Make the advantage that its even density is consistent.But owing to tradition isostatic pressing uses the fluid such as liquid or gas to pass as pressure
Pass medium, also exist that equipment seal request is high, liquid medium easily leaks and easily causes safety problem, and the easy pressurized of moulded products
The problem that power Transfer Medium pollutes, equipment is huge simultaneously, operation complexity, is not suitable for scientific research and product tries trial-productions such as grinding
Sample occasion.
In generation nineteen ninety, Japan occurred in that a kind of pseudo isostatic pressing method being referred to as rubber isostatic pressed, and the method is to use entirety
Rubber mold and original axial powder former, utilize rubber elasticity under high pressure to make axially the pressure energy of (or radial direction)
Enough it is applied to all surface of briquet, but owing to the mobility of rubber is extremely limited so that its isostatic pressed less effective；The highest
Pressure in 100MPa will be that overall rubber mold is damaged so that its range of application is the most limited, this be also the method extremely
The present fails the reason of large-scale application.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention provides a kind of dry type pseudo isostatic pressing method and dress
Put.
The technical problem to be solved in the present invention is achieved through the following technical solutions:
A kind of dry type pseudo isostatic pressing method, described method is first to be put in elastic mould by raw material to be pressed；And by described elasticity
Mould is placed in and is full of in the high pressure chest of rigid solid state quasi-fluid with abundant mobility；Then pressurizeing high pressure chest, rigidity is solid
Pressure is uniformly transferred and puts on elastic mould surface by state quasi-fluid, it is achieved suppress the quasi-iso static pressing of raw material to be pressed.
Further, described rigid solid state quasi-fluid is the wear-resisting little ball of smooth hard；Its a diameter of 0.5 ~ 20mm；Material
Including any one in rustless steel, potassium steel, mould steel, bearing steel, Achates, corundum, zirconium oxide, carborundum or silicon nitride.
A kind of dry type quasi-iso static pressing device, described device is by pressure-bearing frame (1300), high-pressure chamber (1200) and pressure-bearing frame
Frame holding clamp (1100) is constituted, and described pressure-bearing frame (1300) is made up of full symmetric two parts；Described high-pressure chamber
(1200) closely embed in the pressure-bearing frame (1300) of two symmetries, and fastened by pressure-bearing frame holding clamp (1100) card；Institute
State high-pressure chamber (1200) and include compression leg (100), top cover (200), high pressure cavity wall (300) and collet (400)；Described high pressure cavity wall
(300) high pressure chest (301) of isostatic pressed it is internally formed；Rigid solid state quasi-fluid (900) it is full of in described high pressure chest (301)；Institute
State high pressure chest (301) and be placed with elastic mould (1000) by middle position.
Further, described rigid solid state quasi-fluid (900) is the wear-resisting little ball of smooth hard；The diameter of described little ball
It is 0.5 ~ 20mm；Material includes rustless steel, potassium steel, mould steel, bearing steel, Achates, corundum, zirconium oxide, carborundum or nitridation
Any one in silicon.
Further, described elastic mould (1000) includes rubber stopper b(1001), middle chamber (1002), rubber stopper a
(1003), shell elasticity rubber sleeve (1004), and gum elastic set (1004) outward tighten fixing line (1005).
Further, described compression leg (100) is by top cylinder (101) and the bottom cylinder (102) two with coaxial line
Cylinder is integrally formed, and the radius of radius ratio bottom cylinder (102) on described top cylinder (101) is big.
Further, described top cover (200) including: the tubular protrusion (201) at top cover (200) upper surface center, thick round plate
Shape cover plate (202), the cylindrical boss one (203) of top cover (200) bottom center and the through hole (204) at top cover (200) center；
Described tubular protrusion (201), cover plate (202), cylindrical boss one (203) and through hole (204) coaxial line；Described top cover
(200) it is integrated composition.
Further, described collet (400) includes cylindrical boss two (401) and thick round plate shape supporting plate (402), described circle
Cylindrical end tangs two (401) and supporting plate (402) coaxial line；The through hole (204) at described top cover (200) center and described compression leg
(102) part coupling, through hole (204) is the up-downgoing passage of fore-set (100)；Described high pressure chest (301) and described cylinder
Boss one (203) and cylindrical boss two (401) coupling；Described compression leg (100), top cover (200), high pressure cavity wall (300), collet
(400) equal coaxial line.
Further, described pressure-bearing frame (1300) including: pressure-bearing upper plate (500), pressure-bearing lower plate (800), hold-doun nut
One (600a) and hold-doun nut two (600b), and pressure-bearing stud (700).
Further, described pressure-bearing upper plate (500) is rectangular thick plate, the center line along its minor face the two halves structure being divided equally into
Become；Circular hole one (501) is penetrated being evenly distributed with the outside of pressure-bearing upper plate (500) center center circle one (503) as the center of circle；
Have a concentric in described center circle one (503) penetrates circular hole two (502), the tubular protrusion at top cover upper surface center
(201) pass through；Described pressure-bearing lower plate (800) is rectangular thick plate, the center line along its minor face the two halves being divided equally into are constituted；?
It is evenly distributed with the outside of pressure-bearing lower plate (800) center center circle two (802) as the center of circle and penetrates circular hole three (801)；Described
Pressure-bearing stud (700) penetrates circular hole one (501), penetrates circular hole three (801), and by the hold-doun nut one matched
(600a) with hold-doun nut two (600b), pressure-bearing upper plate (500) and pressure-bearing lower plate (800) are fixed up and down.
Compared with prior art, the invention has the beneficial effects as follows:
1. the method for the present invention uses the rigid solid state quasi-fluid with abundant mobility to replace traditional gas or liquid medium,
Solve the problem that existing isostatic pressing machine is high to high-pressure chamber seal request, and eliminate causing because of pressure transmission medium leakage
Sealingly secure problem, and moulded products be stressed Transfer Medium pollute problem.
2. the method for the present invention uses the rigid solid state quasi-fluid with abundant mobility to replace the rubber occurred in recent years
The Rubber Media that in isostatic pressed, mobility is extremely limited, pressing result is more preferable, applies more extensive.
3. the dry type pseudo isostatic pressing method of the present invention is applicable not only to the dry type quasi-iso static pressing device of the present invention, and can quilt
It is widely used in isopressing device or the isostatic pressing machine designing other form.
4. assembly of the invention had both had simple, the safe advantage that stamping of powder shapes, and had again the pressure of isostatic pressed
Uniform advantage.
5. assembly of the invention small volume, simple to operation efficiently, be particularly well-suited to only need the test of a small amount of sample
Sexology is studied.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of apparatus of the present invention.In figure, 100: compression leg；200: top cover；300: high pressure cavity wall；
400: collet；500: pressure-bearing upper plate；600a: hold-doun nut one；600b: hold-doun nut two；700: pressure-bearing stud；800: pressure-bearing
Lower plate；900: rigid solid state quasi-fluid；1000: elastic mould.
Fig. 2 is the dispersed structure schematic diagram of apparatus of the present invention.In figure, 1200: high-pressure chamber；1300: pressure-bearing frame；
1100: pressure-bearing frame holding clamp.
Fig. 3 is the blast front view of the high-pressure chamber of apparatus of the present invention.In figure, 101: top cylinder；102: bottom cylinder；
201: tubular protrusion；202: cover plate；203: cylindrical boss one；204: through hole；301: high pressure chest；401: cylindrical boss
Two；402: supporting plate.
Fig. 4 is the generalized section of the elastic mould of apparatus of the present invention.In figure, 1001: rubber stopper b；1002: cavity；
1003: rubber stopper a；1004: gum elastic set；1005: tighten fixing line.
Fig. 5 is the top view of apparatus of the present invention pressure-bearing upper plate.In figure, 501: penetrate circular hole one；502: penetrate circular hole two；
503: center circle one.
Fig. 6 is the top view of apparatus of the present invention pressure-bearing lower plate.In figure, 801: penetrate circular hole three；802: center circle two.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention done further detailed description, but embodiments of the present invention are not limited to
This.
Embodiment 1:
Dry type quasi-iso static pressing device dispersed structure schematic diagram as shown in Figure 2, this device is by pressure-bearing frame 1300, high-pressure chamber
1200 and pressure-bearing frame holding clamp 1100 constitute, pressure-bearing frame 1300 is made up of full symmetric two parts；High-pressure chamber
In 1200 pressure-bearing frames 1300 closely embedding two symmetries, and fastened by pressure-bearing frame holding clamp 1100 card.
Dry type quasi-iso static pressing device cross-sectional view as shown in Figure 1, high-pressure chamber 1200 includes compression leg 100, top
Lid 200, high pressure cavity wall 300 and collet 400；High pressure cavity wall 300 is cylindric, and it is internally formed the high pressure chest 301 of isostatic pressed；High
Being full of rigid solid state quasi-fluid 900 in pressure chamber 301, high pressure chest 301 is placed with elastic mould 1000 by middle position.
The blast front view of the high-pressure chamber 1200 of apparatus of the present invention as shown in Figure 3, compression leg 100 is by having coaxial line
Top cylinder 101 and 102 two cylinders of bottom cylinder are integrally formed, and the radius ratio bottom cylinder 102 of top cylinder 101
Radius is big.
Top cover 200 includes: the tubular protrusion 201 at top cover 200 upper surface center, thick round plate shape cover plate 202, top cover 200 end
The cylindrical boss 1 at center, face and the through hole 204 at top cover 200 center；Tubular protrusion 201, cover plate 202, circular cylindrical projection
Platform 1 and through hole 204 coaxial line；Top cover 200 is integrated composition.
Collet 400 includes cylindrical boss 2 401 and thick round plate shape supporting plate 402, cylindrical boss 2 401 and supporting plate 402
Coaxial line；The through hole 204 at top cover 200 center mates with 102 parts of compression leg, and through hole 204 is that the up-downgoing of fore-set 100 is led to
Road；High pressure chest 301 mates with cylindrical boss 1 and cylindrical boss 2 401；Compression leg 100, top cover 200, high pressure cavity wall
300, the equal coaxial line of collet 400.
The generalized section of the elastic mould 1000 of apparatus of the present invention as shown in Figure 4, elastic mould 1000 includes rubber
Bundle outside plug b1001, middle chamber 1002, rubber stopper a1003, shell elasticity rubber sleeve 1004, and gum elastic set 1004
Fastening alignment 1005.
As shown in Fig. 1, Fig. 5 and Fig. 6, pressure-bearing frame 1300 includes: pressure-bearing upper plate 500, pressure-bearing lower plate 800, hold-doun nut
Each 16 of one 600a and hold-doun nut two 600b, and pressure-bearing stud 700 8；Described pressure-bearing upper plate (500) is that rectangle is thick
Plate, the center line along its minor face the two halves being divided equally into are constituted；With pressure-bearing upper plate (500) center center circle one as the center of circle
(503) outside is evenly distributed with and penetrates circular hole one (501)；Have a concentric in described center circle one (503) penetrates circle
Hole two (502), the tubular protrusion (201) at top cover upper surface center passes through；Described pressure-bearing lower plate (800) is rectangular thick plate,
The two halves being divided equally into by the center line along its minor face are constituted；With pressure-bearing lower plate (800) center center circle two (802) as the center of circle
Outside is evenly distributed with and penetrates circular hole three (801)；Described pressure-bearing stud 700 penetrates circular hole 1, penetrates circular hole 3 801,
And pressure-bearing upper plate 500 and pressure-bearing lower plate about 800 are fixed by the hold-doun nut 600a and hold-doun nut 600b by matching.
Embodiment 2:
A kind of dry type pseudo isostatic pressing method, described method is first to be put in elastic mould by raw material to be pressed；And by described elasticity
Mould is placed in and is full of in the high pressure chest of rigid solid state quasi-fluid with abundant mobility；Then pressurizeing high pressure chest, rigidity is solid
Pressure is uniformly transferred and puts on elastic mould surface by state quasi-fluid, it is achieved suppress the quasi-iso static pressing of raw material to be pressed.
Described rigid solid state quasi-fluid is the wear-resisting little ball of smooth hard；Its a diameter of 0.5 ~ 20mm；Material includes stainless
Any one in steel, potassium steel, mould steel, bearing steel, Achates, corundum, zirconium oxide, carborundum or silicon nitride.
The dry type pseudo isostatic pressing method of the present invention of the present invention is done by the dry type quasi-iso static pressing device below in conjunction with the present invention
Further illustrate.
In the present embodiment, preferred isostatic pressed operating process is: high pressure cavity wall 300 is closely buckled in collet 400 by (1)
On cylindrical boss 2 401；(2) in high pressure chest 301, appropriate pilot medium is poured；(3) will be equipped with suppressing the springform of briquet
Tool 1000 puts into high pressure chest 301；(4) top cover, makes cylindrical boss 1 closely be buckled in high pressure cavity wall 300；(5)
Continue to be filled with pilot medium by through hole 204, till through hole 204 half is full of；(6) compression leg 100 is filled in through hole,
Above step completes the assembling of whole high-pressure chamber；Before (7) tight for above-mentioned high-pressure chamber rigidity being embedded pressure-bearing frame (or
Half part afterwards), wherein, early stage completes the altitude mixture control of pressure-bearing frame the most in advance；(8) two parts pair of pressure-bearing frame
Connect, then fasten with pressure-bearing frame holding clamp 1100 card, complete the assembling of whole device；(9) device being completed is put
Enter the work space of small-sized powder compressing machine；(10) start small-sized powder compressing machine and carry out pressure release of pressurizeing, it is achieved isostatic pressed process.
It should be strongly noted that the dry type pseudo isostatic pressing method of the present invention to be applicable not only to the dry type of the present invention accurate etc. quiet
Pressure device, and can be widely used in designing isopressing device or the isostatic pressing machine of other form.
The dry type pseudo isostatic pressing method of the present invention and device, use rigid solid state quasi-fluid as the standard of pilot fluid media (medium)
Isostatic pressed method, utilizes the device of the small-sized powder compressing machine isostatic pressing to being operated by erection method, solves existing
Isostatic pressing machine is high to high-pressure chamber seal request, and potential safety hazard is big, bulky, operation complexity, and sample is easily dirty by pilot medium
Dye, pressing result is bad, be dfficult to apply to scientific research and product examination such as grinds at the problem of trial-production sample occasion, can be the completeest
Become quasi-iso static pressing compacting, have a wide range of applications, be particularly well-suited to only need the tentative scientific research process of a small amount of sample.
Above content is to combine concrete preferred implementation further description made for the present invention, it is impossible to assert
Being embodied as of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of present inventive concept, it is also possible to make some simple deduction or replace, all should be considered as belonging to the present invention's
Protection domain.
Claims (10)
1. a dry type pseudo isostatic pressing method, it is characterised in that: described method is first to be put in elastic mould by raw material to be pressed；
And described elastic mould is placed in the full high pressure chest of rigid solid state quasi-fluid with abundant mobility；Then to high pressure chest
Pressurization, pressure is uniformly transferred and puts on elastic mould surface by rigid solid state quasi-fluid, it is achieved the standard etc. to raw material to be pressed
Static pressure is suppressed.
Dry type pseudo isostatic pressing method the most according to claim 1, it is characterised in that: described rigid solid state quasi-fluid is smooth
The little ball of hard, wear-resistant；A diameter of 0.5 ~ 20mm of described little ball；Material includes rustless steel, potassium steel, mould steel, bearing
Any one in steel, Achates, corundum, zirconium oxide, carborundum or silicon nitride.
3. a dry type quasi-iso static pressing device, it is characterised in that: described device is by pressure-bearing frame (1300), high-pressure chamber (1200)
And pressure-bearing frame holding clamp (1100) is constituted, described pressure-bearing frame (1300) is made up of full symmetric two parts；Described height
Pressure cavity (1200) closely embeds in the pressure-bearing frame (1300) of two symmetries, and by pressure-bearing frame holding clamp (1100) card fastening
Fixed；Described high-pressure chamber (1200) includes compression leg (100), top cover (200), high pressure cavity wall (300) and collet (400)；Described height
Pressure cavity wall (300) is internally formed the high pressure chest (301) of isostatic pressed；It is full of in described high pressure chest (301) and there is abundant mobility
Rigid solid state quasi-fluid (900)；Described high pressure chest (301) is placed with elastic mould (1000) by middle position.
Device the most according to claim 3, it is characterised in that: described rigid solid state quasi-fluid (900) is that smooth hard is resistance to
Grind little ball；A diameter of 0.5 ~ 20mm of described little ball；Material include rustless steel, potassium steel, mould steel, bearing steel, Achates,
Any one in corundum, zirconium oxide, carborundum or silicon nitride.
Device the most according to claim 3, it is characterised in that: described elastic mould (1000) includes rubber stopper b(1001),
Middle chamber (1002), rubber stopper a(1003), shell elasticity rubber sleeve (1004), and the bundle that gum elastic set (1004) is outward
Fastening alignment (1005).
Dry type quasi-iso static pressing device the most according to claim 3, it is characterised in that: described compression leg (100) is coaxial by having
Top cylinder (101) and (102) two cylinders of bottom cylinder of line are integrally formed, the radius ratio on described top cylinder (101)
The radius of bottom cylinder (102) is big.
Dry type quasi-iso static pressing device the most according to claim 3, it is characterised in that: described top cover (200) including: top cover
(200) tubular protrusion (201) at upper surface center, thick round plate shape cover plate (202), the circular cylindrical projection of top cover (200) bottom center
The through hole (204) at platform one (203) and top cover (200) center；Described tubular protrusion (201), cover plate (202), cylindrical boss
One (203) and through hole (204) coaxial line；Described top cover (200) is integrated composition.
Dry type quasi-iso static pressing device the most according to claim 3, it is characterised in that: described collet (400) includes cylinder
Boss two (401) and thick round plate shape supporting plate (402), described cylindrical boss two (401) and supporting plate (402) coaxial line；Described top
The through hole (204) at lid (200) center mates with (102) part of described compression leg, and through hole (204) is the upper of fore-set (100)
Down going channel；Described high pressure chest (301) mates with described cylindrical boss one (203) and cylindrical boss two (401)；Described pressure
Post (100), top cover (200), high pressure cavity wall (300), collet (400) all coaxial lines.
Dry type quasi-iso static pressing device the most according to claim 3, it is characterised in that: described pressure-bearing frame (1300) including:
Pressure-bearing upper plate (500), pressure-bearing lower plate (800), hold-doun nut one (600a) and hold-doun nut two (600b), and pressure-bearing stud
(700).
Dry type quasi-iso static pressing device the most according to claim 9, it is characterised in that: described pressure-bearing upper plate (500) is rectangle
Slab, the center line along its minor face the two halves being divided equally into are constituted；With pressure-bearing upper plate (500) center center circle one as the center of circle
(503) outside is evenly distributed with and penetrates circular hole one (501)；Have a concentric in described center circle one (503) penetrates circle
Hole two (502), the tubular protrusion (201) at top cover upper surface center passes through；Described pressure-bearing lower plate (800) is rectangular thick plate,
The two halves being divided equally into by the center line along its minor face are constituted；With pressure-bearing lower plate (800) center center circle two (802) as the center of circle
Outside is evenly distributed with and penetrates circular hole three (801)；Described pressure-bearing stud (700) penetrates circular hole one (501), penetrates circular hole three
(801) hold-doun nut one (600a) and hold-doun nut two (600b), and by matching are by pressure-bearing upper plate (500) and pressure-bearing
Lower plate (800) is fixed up and down.
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| CN109332688A (en) * | 2018-10-18 | 2019-02-15 | 山西金开源实业有限公司 | Dry bag formula isostatic pressing machine and its loading method |
| CN109605799A (en) * | 2018-12-07 | 2019-04-12 | 山西金开源实业有限公司 | Dry bag formula isostatic pressing machine |
| CN110125390A (en) * | 2018-02-08 | 2019-08-16 | 罗天珍 | The padding and compacting sintering process of 3 D-printing metal powder bond blank |
| CN111822704A (en) * | 2019-04-22 | 2020-10-27 | 罗天珍 | One-dimensional linear pressure equalizing device for three-dimensional printed powder-bonded article |
| CN111873137A (en) * | 2020-07-14 | 2020-11-03 | 成都君遂科技有限公司 | Device and method for pressing ball material by dry bag type cold isostatic press |
| CN114649539A (en) * | 2020-12-21 | 2022-06-21 | 武汉众宇动力系统科技有限公司 | Fuel cell stack and end plate for fuel cell stack |
| CN109605799B (en) * | 2018-12-07 | 2024-05-10 | 山西金开源实业有限公司 | Dry bag type isostatic press |
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| CN110125390A (en) * | 2018-02-08 | 2019-08-16 | 罗天珍 | The padding and compacting sintering process of 3 D-printing metal powder bond blank |
| CN109332688A (en) * | 2018-10-18 | 2019-02-15 | 山西金开源实业有限公司 | Dry bag formula isostatic pressing machine and its loading method |
| CN109605799A (en) * | 2018-12-07 | 2019-04-12 | 山西金开源实业有限公司 | Dry bag formula isostatic pressing machine |
| CN109605799B (en) * | 2018-12-07 | 2024-05-10 | 山西金开源实业有限公司 | Dry bag type isostatic press |
| CN111822704A (en) * | 2019-04-22 | 2020-10-27 | 罗天珍 | One-dimensional linear pressure equalizing device for three-dimensional printed powder-bonded article |
| CN111873137A (en) * | 2020-07-14 | 2020-11-03 | 成都君遂科技有限公司 | Device and method for pressing ball material by dry bag type cold isostatic press |
| CN114649539A (en) * | 2020-12-21 | 2022-06-21 | 武汉众宇动力系统科技有限公司 | Fuel cell stack and end plate for fuel cell stack |
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