CN203109230U - Isostatic pressing molybdenum bar forming equipment of flexible mold - Google Patents
Isostatic pressing molybdenum bar forming equipment of flexible mold Download PDFInfo
- Publication number
- CN203109230U CN203109230U CN 201220723398 CN201220723398U CN203109230U CN 203109230 U CN203109230 U CN 203109230U CN 201220723398 CN201220723398 CN 201220723398 CN 201220723398 U CN201220723398 U CN 201220723398U CN 203109230 U CN203109230 U CN 203109230U
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- cylinder body
- soft mode
- pressure
- molybdenum bar
- pressure cylinder
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Abstract
The utility model discloses isostatic pressing molybdenum bar forming equipment of a flexible mold. The isostatic pressing molybdenum bar forming equipment comprises a sealed high-pressure cylinder body, wherein a rubber flexible mold is placed inside the cavity of the high-pressure cylinder body; blank is filled in the rubber flexible mold; liquid with pressure is further injected in the cavity of the high-pressure cylinder body; and a pressure injection port is arranged on the high-pressure cavity body. The rubber flexible mold is in a cup-shaped structure, and a hard rubber plug is plugged at a cup opening of the rubber flexible mold. The cavity of the high-pressure cavity body is internally provided with a suspension bracket, a hook is arranged on the hard rubber plug, and the hook is suspended on the suspension bracket. The molybdenum bar forming equipment has the advantages of being uniform in pressure, high in blank density and low in use cost and manufacturing cost of the mould.
Description
Technical field
The utility model relates to a kind of production equipment of molybdenum bar, relates in particular to the molybdenum powder shaped device.
Background technology
Be the process that raw material is made the molybdenum bar at present with the molybdenum powder, the main method that adopts the compression molding sintering, this process is that before sintering molybdenum powder to be inserted in the punching block by cold moudling be the strip blank, sinter the strip blank into the molybdenum bar again, this forming and sintering method operating procedure is simple relatively, and energy is control strip base size and presentation quality accurately, but in actual production, also there are many deficiencies: at first because punching block compression moulding, dress during powder in the die cavity powder distribution of each position be difficult to reach uniformity, be difficult to reach stress unanimity everywhere in the course of exerting pressure again, thereby bar base density is lower and inhomogeneous, has a strong impact on the following process production of molybdenum bar.The second, because punching block is in pressing process, molybdenum powder directly contact with mould and causes friction and wear, after the time about a week, owing to the more size that influences the base bar of wearing and tearing the more mold exchange of having to, causes the production cost rising.The 3rd, its blank is stressed very uneven in pressing process, and the pressure imbalance of punching block compacting very easily causes the disconnected bar phenomenon of compacting, forms waste product, reduces yield rate.Therefore provide a kind of energy to satisfy the big high efficiency mould of producing needs, and guarantee product quality, just seem particularly important.
The utility model content
At the above-mentioned deficiency of existing in prior technology, technical problem to be solved in the utility model provides and a kind ofly exerts pressure evenly, blank density height, static pressure molybdenum bar formers such as soft mode that die cost is low.
In order to solve the problems of the technologies described above, static pressure molybdenum bar formers such as soft mode of the present utility model, the high pressure cylinder body that comprises sealing, in the chamber of described high pressure cylinder body, be placed with the rubber soft mode, be filled with blank in this rubber soft mode, in the chamber of high pressure cylinder body, also be marked with the band press liquid, be provided with the pressure inlet at high pressure cylinder body.
The cup-shaped structure of described rubber soft mode is plugged with the hard rubber plug in the rim of a cup position of this rubber soft mode.
Be provided with suspension holdfast in the chamber of described high pressure cylinder body, hard rubber is equipped with hook beyond the Great Wall, and this hook is hung and hung on suspension holdfast.
After adopting said structure, because will be filled with the rubber soft mode of blank is positioned in the high pressure cylinder body, and pressure injection has the band press liquid in this high pressure cylinder body, and the character that this just utilizes the Incoercibility of liquid medium and evenly transmits pressure is evenly exerted pressure to the blank the rubber soft mode from all directions.When the band press liquid by compression pump through pressure liquid inlet by the chamber of cylinder pressure body in the time, according to fluid mechanics principle, its pressure size is constant and can be delivered to all directions equably, the pressure that molybdenum powder material in this moment rubber soft mode is subjected in all directions is that size is consistent uniformly, blank density is high and evenly, properties of product are greatly improved.Because molybdenum powder fills in the rubber soft mode, make molybdenum powder directly not contact with cylinder body again, avoided the friction and wear of molybdenum powder to metal cylinder body or mould.Also because rubber soft mode quality softness is flexible, can prolonged and repeatedly use, from the angle of production cost, saved cost, generally speaking, a rubber soft mode can use more than 1000 times repeatedly.The rubber soft mode that powder is housed can be positioned over the rubbing of doing the later stage on the platform after molybdenum powder completes and finishes handles, eliminate the inhomogeneous gap between the powder, reach powder and in gum cover, evenly distribute, be convenient to moulding base bar size unanimity afterwards, for following process work is laid a good foundation; Rubber soft mode compacting molybdenum bar yield rate height is applicable to the demand that produce in enormous quantities in the workshop, and the rubber soft mode of filling molybdenum powder is placed in the equal pressing equipment in batches to be suppressed, and pressing result is good, base bar high conformity, yield rate height.
Description of drawings
Below in conjunction with the drawings and specific embodiments static pressure molybdenum bar formers such as the utility model soft mode are described in further detail.
Fig. 1 is the structural representation of a kind of specific embodiment of static pressure molybdenum bar former such as the utility model soft mode;
Fig. 2 is the filling structure schematic diagram of rubber soft mode in the embodiment shown in Figure 1;
Fig. 3 is the hard rubber plug structure schematic diagram in the embodiment shown in Figure 2.
1-high pressure cylinder body, 2-band press liquid, 3-pressure liquid inlet, 4-suspension holdfast, 5-hook, 6-hard rubber plug, 7-rubber soft mode, 8-blank, 9-tie up groove.
The specific embodiment
As shown in Figure 1, be built-in with rubber soft mode 7 in the cylinder chamber of the high pressure cylinder body 1 that is hermetically-sealed construction, high pressure cylinder body 1 is made of metal, and rubber soft mode 7 is made by the rubber-like soft rubber.Rubber soft mode 7 cup-shaped structures, molybdenum powder blank 8 is housed in its glass chamber, be plugged with hard rubber plug 6 in its rim of a cup position, this hard rubber plug 6 is the short cylindrical structure, is shaped at the cylinder of hard rubber plug 6 and ties up groove 9, at hard rubber plug 6 hook 5 is housed, high pressure cylinder body arranges suspension holdfast 4 in 1 chamber, hook 5 on the hard rubber plug 6 is hung and is hung on suspension holdfast 4, thereby each rubber soft mode 7 that blank 8 is housed all is suspended from the chamber of high pressure cylinder body 1, and it is stressed evenly to make it all directions.Top at high pressure cylinder body 1 also is provided with pressure inlet 3, and the band press liquid that high-pressure pump pumps into is arrived in the chamber of high pressure cylinder body 1 by pressure injection.
During the molybdenum powder moulding, at first the rim of a cup at rubber soft mode 7 loads into the molybdenum powder of the good weight of weighing by a funnel, hard rubber plug 6 beyond the Great Wall then, tie up solid with rubber band along groove 9 parts of tying up on the hard rubber plug 6 in the periphery again, the rubber soft mode 7 that to fill molybdenum powder afterwards is placed on the platform, use the mode of artificial rubbing, make powder in rubber soft mode 7, evenly distribute, eliminate inhomogeneous gap when the powder, the rubber soft mode that will fill molybdenum powder then is placed in batches in the chamber of high pressure cylinder body 1 and suppresses.Produce the molybdenum bar with this rubber soft mode, produce 3000 for 1 batch, the fracture rate is 0.07 %.Simultaneously arbitrarily measure 100 finished products and carry out the comparison of size end to end, tolerance is less than in the 0.05mm goods, and quality is better than existing moulding process and former greatly.
Claims (4)
1. static pressure molybdenum bar formers such as soft mode, the high pressure cylinder body (1) that comprises sealing, it is characterized in that: in the chamber of described high pressure cylinder body (1), be placed with rubber soft mode (7), be filled with blank (8) in this rubber soft mode (7), in the chamber of high pressure cylinder body (1), also be marked with band press liquid (2), be provided with pressure inlet (3) at high pressure cylinder body (1).
2. static pressure molybdenum bar former such as soft mode according to claim 1, it is characterized in that: the cup-shaped structure of described rubber soft mode (7) is plugged with hard rubber plug (6) in the rim of a cup position of this rubber soft mode (7).
3. static pressure molybdenum bar former such as soft mode according to claim 2, it is characterized in that: be provided with suspension holdfast (4) in the chamber of described high pressure cylinder body (1), hook (5) is housed on the hard rubber plug (6), and this hook (5) is hung and is hung on suspension holdfast (4).
4. according to static pressure molybdenum bar formers such as claim 2 or 3 described soft modes, it is characterized in that: described hard rubber plug (6) is provided with ties up groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723398 CN203109230U (en) | 2012-12-25 | 2012-12-25 | Isostatic pressing molybdenum bar forming equipment of flexible mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220723398 CN203109230U (en) | 2012-12-25 | 2012-12-25 | Isostatic pressing molybdenum bar forming equipment of flexible mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203109230U true CN203109230U (en) | 2013-08-07 |
Family
ID=48889608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220723398 Expired - Fee Related CN203109230U (en) | 2012-12-25 | 2012-12-25 | Isostatic pressing molybdenum bar forming equipment of flexible mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203109230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934227A (en) * | 2015-07-10 | 2015-09-23 | 长春维鸿东光电子器材有限公司 | Tantalum core making technology of high-temperature all-tantalum capacitor |
-
2012
- 2012-12-25 CN CN 201220723398 patent/CN203109230U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934227A (en) * | 2015-07-10 | 2015-09-23 | 长春维鸿东光电子器材有限公司 | Tantalum core making technology of high-temperature all-tantalum capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20141225 |
|
| EXPY | Termination of patent right or utility model |