CN204504224U - A kind of Bidirectional pressure molding jig suppressing tungsten pipe - Google Patents
A kind of Bidirectional pressure molding jig suppressing tungsten pipe Download PDFInfo
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- CN204504224U CN204504224U CN201520201433.3U CN201520201433U CN204504224U CN 204504224 U CN204504224 U CN 204504224U CN 201520201433 U CN201520201433 U CN 201520201433U CN 204504224 U CN204504224 U CN 204504224U
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- gum cover
- steel sheath
- interior
- tungsten pipe
- molding jig
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Abstract
The utility model discloses a kind of Bidirectional pressure molding jig suppressing tungsten pipe, comprise internal-pressure die and with outer compression mould, internal-pressure die comprises interior steel sheath and is enclosed within interior gum cover outside interior steel sheath; Outer compression mould comprises outer steel sheath and overlaps the outer gum cover inside steel sheath outside, and interior gum cover is connected by cushion rubber with outer gum cover.The Bidirectional pressure molding jig of the utility model compacting tungsten pipe, by arrange internal-pressure die and with outer compression mould, during compacting, tungsten or molybdenum powder are loaded internal-pressure die and and outer compression mould between suppress, powder is stressed is bidirectional stress, the percent defective of the tungsten pipe obtained like this is low, and improve the intensity of tungsten pipe, not easily produce breakage, crackle, cost is corresponding reduction also.
Description
Technical field
The utility model relates to a kind of compacting tool set, is specifically related to a kind of Bidirectional pressure molding jig suppressing tungsten pipe.
Background technology
In the process of current compacting tungsten pipe, usually use a steel core die and a gum cover, i.e. unidirectional compacting tool set, tungsten powder installed between punching block and gum cover, undertaken suppressing by cold isostatic press, shaping.In the compacting of reality, for the pipe of reduced size, core can be made solid, but for larger-size tungsten pipe, because press power is larger, so steel core is generally as hollow, powder actual stressed be single load bearing, be exactly liquid is applied on tungsten powder power by gum cover surface, the pressure of the liquid suffered by hollow steel core rod inside, the power needing the distortion by punching block to produce overcomes, so material is very strict when making punching block core, internal flaw can not be had, add the pad in man-hour, the defects such as sand holes can not be had, once defectiveness, punching block core is under the superelevation pressure of about 200MPa, punching block core will be punctured, transmission medium is made to enter into tungsten powder, waste product will be produced.
In sum, when using unidirectional compacting tool set to suppress tungsten pipe, following three defects are mainly contained:
(1) punching block core quality requirement is high, and what bring is that cost of manufacture is high simultaneously;
(2) in the compacting of tungsten pipe is produced, percent defective is high;
(3) one side compacting, compacting pipe intensity is out not high, easily produces breakage, the defects such as crackle when the demoulding, forms waste product.
Utility model content
The purpose of this utility model is to provide a kind of Bidirectional pressure molding jig suppressing tungsten pipe, solves that the cost of manufacture that existing unidirectional compacting tool set exists is high, percent defective is high and easily produce breakage when the demoulding, the problem of crackle.
The technical scheme that the utility model adopts is, a kind of Bidirectional pressure molding jig suppressing tungsten pipe, comprise internal-pressure die and with outer compression mould, internal-pressure die comprises interior steel sheath and is enclosed within interior gum cover outside interior steel sheath; Outer compression mould comprises outer steel sheath and overlaps the outer gum cover inside steel sheath outside, and interior gum cover is connected by cushion rubber with outer gum cover.
Feature of the present utility model is also,
Interior gum cover and interior steel sheath two ends are tightened by iron wire.
Outer gum cover, cushion rubber, interior gum cover and interior steel sheath two ends are tightened by iron wire.
Outer steel sheath is made up of two semicircular connectors.
The beneficial effects of the utility model are, the Bidirectional pressure molding jig of the utility model compacting tungsten pipe, by arrange internal-pressure die and with outer compression mould, during compacting, tungsten or molybdenum powder are loaded internal-pressure die and and outer compression mould between suppress, powder is stressed is bidirectional stress, and the percent defective of the tungsten pipe obtained like this is low, and improves the intensity of tungsten pipe, not easily produce breakage, crackle, cost is corresponding reduction also.
Accompanying drawing explanation
Fig. 1 is the structure chart of the Bidirectional pressure molding jig of the utility model compacting tungsten pipe.
In figure, steel sheath 1., gum cover 2., 3. outer steel sheath, 4. outer gum cover, 5. cushion rubber.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The Bidirectional pressure molding jig of the utility model compacting tungsten pipe, as shown in Figure 1, comprise internal-pressure die and with outer compression mould, the interior gum cover 2 that internal-pressure die comprises interior steel sheath 1 and is enclosed within outside interior steel sheath 1; Outer compression mould comprises outer steel sheath 3 and overlaps the outer gum cover 4 inside steel sheath 3 outside, and outer steel sheath 3 is made up of two semicircular connectors, convenient for assembly, and interior gum cover 2 is connected by cushion rubber 5 with outer gum cover 4.
Interior gum cover 2 is tightened by iron wire with interior steel sheath 1 two ends; Outer gum cover 4, cushion rubber 5, interior gum cover 2 and interior steel sheath 1 two ends are tightened by iron wire.
Compacting tungsten, during molybdenum pipe, first interior gum cover 2 is enclosed within outside interior steel sheath 1, and interior gum cover 2 is arranged smooth, cushion rubber 5 on interior gum cover 2 overcoat, three road iron wires are used to be tightened with interior steel sheath 1 two ends by interior gum cover 2, then outer gum cover 4 is enclosed within outside cushion rubber 5, re-use three cover iron wires by outer gum cover 4, cushion rubber 5, the two ends of interior gum cover 2 and interior steel sheath 1 are tightened, outer gum cover 4 is arranged smooth, the upper outside steel sheath 3 of gum cover 4 overcoat outside, in guarantee, outer steel sheath is concentric, tungsten or molybdenum powder is loaded between interior gum cover 2 and outer gum cover 4, often fill 100mm height, use stainless steel bar by powder tamping, in making, in outer gum cover is close to, outer steel sheath, after powder installs, the superiors' powder is moved flat, compressing cushion rubber 5 makes itself and powder surface sturdy, then put into cold isostatic press to suppress, after compacting terminates, in removing, outer steel sheath and in, outer gum cover, obtain the higher tungsten of intensity or molybdenum pipe.
The Bidirectional pressure molding jig of the utility model compacting tungsten pipe, by arrange internal-pressure die and with outer compression mould, during compacting, tungsten or molybdenum powder are loaded internal-pressure die and and outer compression mould between suppress, powder is stressed is bidirectional stress, the percent defective of the tungsten pipe obtained like this is low, and improve the intensity of tungsten pipe, not easily produce breakage, crackle, cost is corresponding reduction also.
Claims (4)
1. suppress a Bidirectional pressure molding jig for tungsten pipe, it is characterized in that, comprise internal-pressure die and with outer compression mould, described internal-pressure die comprises interior steel sheath (1) and is enclosed within interior steel sheath (1) interior gum cover (2) outward; Described outer compression mould comprises outer steel sheath (3) and overlaps the outer gum cover (4) of steel sheath (3) inner side outside, and interior gum cover (2) is connected by cushion rubber (5) with outer gum cover (4).
2. the Bidirectional pressure molding jig of compacting tungsten pipe according to claim 1, is characterized in that, described interior gum cover (2) and interior steel sheath (1) two ends are tightened by iron wire.
3. the Bidirectional pressure molding jig of compacting tungsten pipe according to claim 1, is characterized in that, described outer gum cover (4), cushion rubber (5), interior gum cover (2) and interior steel sheath (1) two ends are tightened by iron wire.
4. the Bidirectional pressure molding jig of compacting tungsten pipe according to claim 1, is characterized in that, described outer steel sheath (3) is made up of two semicircular connectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201433.3U CN204504224U (en) | 2015-04-03 | 2015-04-03 | A kind of Bidirectional pressure molding jig suppressing tungsten pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520201433.3U CN204504224U (en) | 2015-04-03 | 2015-04-03 | A kind of Bidirectional pressure molding jig suppressing tungsten pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204504224U true CN204504224U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520201433.3U Active CN204504224U (en) | 2015-04-03 | 2015-04-03 | A kind of Bidirectional pressure molding jig suppressing tungsten pipe |
Country Status (1)
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| CN (1) | CN204504224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216277A (en) * | 2019-06-13 | 2019-09-10 | 金堆城钼业股份有限公司 | A kind of preparation method of refractory metal composite pipe |
-
2015
- 2015-04-03 CN CN201520201433.3U patent/CN204504224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216277A (en) * | 2019-06-13 | 2019-09-10 | 金堆城钼业股份有限公司 | A kind of preparation method of refractory metal composite pipe |
| CN110216277B (en) * | 2019-06-13 | 2021-08-24 | 金堆城钼业股份有限公司 | Preparation method of refractory metal composite pipe |
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