CN211276511U - Tooling die for reducing powder feeding rate of molybdenum tube - Google Patents
Tooling die for reducing powder feeding rate of molybdenum tube Download PDFInfo
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- CN211276511U CN211276511U CN201922078229.8U CN201922078229U CN211276511U CN 211276511 U CN211276511 U CN 211276511U CN 201922078229 U CN201922078229 U CN 201922078229U CN 211276511 U CN211276511 U CN 211276511U
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- rubber sleeve
- molybdenum tube
- sleeve
- molybdenum
- wall
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Abstract
The utility model discloses a reduce molybdenum tube and throw frock mould of powder rate, including rubber sleeve and the steel core of constituteing molybdenum tube static pressure forming die, this steel core is located inside the rubber sleeve, and the outer wall cooperation of this steel core form the die cavity of shaping molybdenum tube behind the rubber sleeve inner wall, the rubber sleeve outside is provided with the outer cover of stereotyping that reduces this rubber sleeve and expand outward when the molybdenum tube shaping, outer cover of stereotyping inner wall with rubber sleeve outer wall clearance fit, the uncovered and bottom seal in outer cover of stereotyping top. Has the advantages that: by additionally arranging the outer sizing sleeve on the outer side of the rubber sleeve, the outward expansion of the rubber sleeve can be reduced by limiting the outer part of the rubber sleeve when the molybdenum tube is subjected to isostatic pressing, so that the deformation of a cavity is reduced, and the powder feeding rate of molybdenum powder is reduced; by adopting the outer shaping sleeve to shape the outer part of the cavity, the outer expansion amount of the surface of the molybdenum tube after shaping can be reduced, thereby reducing the cutting amount in the subsequent machining process and improving the machining efficiency of the molybdenum tube.
Description
Technical Field
The utility model relates to a molybdenum tube mould technical field, concretely relates to reduce molybdenum tube and throw frock mould of powder rate.
Background
The molybdenum tube is a special-shaped product of metal molybdenum, and can be used for manufacturing an anode bottom and a leading-out rod of an electron tube, a magnetron sputtering molybdenum tube target material, a bubbling tube of a glass tank furnace, a thermocouple protective sleeve and the like. The preparation method of the molybdenum tube mainly comprises the following steps: machining a molybdenum rod into a tube, powder metallurgy (isostatic pressing of a molybdenum tube blank), spinning, drawing, and the like. When the molybdenum tube blank is subjected to isostatic pressing, the external rubber sleeve is easy to expand and deform, so that the powder feeding rate is high in the forming process, and is usually 2.5-2.8: 1, the flatness of the surface of the formed molybdenum tube is poor, and certain difficulty is caused to subsequent machining operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reduce molybdenum pipe and throw frock mould of powder rate in order to solve above-mentioned problem just, the utility model provides an among a great deal of technical scheme preferred technical scheme have: the external expansion of the rubber mold can be reduced in the molybdenum tube forming process through external limiting, so that the powder feeding rate is reduced, the efficiency of machining operation of the molybdenum tube is improved, and the like, and the technical effects are explained in detail below.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of reduce molybdenum tube and throw frock mould of powder rate, including rubber sleeve and the steel core of constituteing molybdenum tube static pressure forming die, this steel core is located inside the rubber sleeve, and the outer wall cooperation of this steel core form the die cavity of shaping molybdenum tube behind the rubber sleeve inner wall, the rubber sleeve outside is provided with the outer cover of stereotyping that reduces this rubber sleeve and expand outward when the molybdenum tube shaping, outer cover of stereotyping inner wall with rubber sleeve outer wall clearance fit, the uncovered and bottom seal in outer cover of stereotyping top.
Preferably, a positioning groove matched with the bottom end of the steel core for positioning is formed in the bottom of the inner side of the outer sizing sleeve, and the bottom end of the steel core is in inserting fit with the positioning groove.
Preferably, the outer sizing sleeve comprises a body and two handles, and the two handles are symmetrically arranged on the upper parts of the two sides of the body respectively.
Preferably, the body is a metal barrel-shaped structure with a smooth inner wall, and the handle is welded and fixed with the body.
Preferably, the body and the handle are both made of steel or iron.
Preferably, the top edge of the body is not lower than the top surface of the rubber sleeve.
To sum up, the utility model has the advantages that: 1. by additionally arranging the outer sizing sleeve on the outer side of the rubber sleeve, the outward expansion of the rubber sleeve can be reduced by limiting the outer part of the rubber sleeve when the molybdenum tube is subjected to isostatic pressing, so that the deformation of a cavity is reduced, and the powder feeding rate of molybdenum powder is reduced;
2. by adopting the outer shaping sleeve to shape the outer part of the cavity, the outer expansion amount of the surface of the molybdenum tube after shaping can be reduced, thereby reducing the cutting amount in the subsequent machining process and improving the machining efficiency of the molybdenum tube.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the internal structure of the present invention;
fig. 2 is a schematic perspective view of the outer jacket of fig. 1.
The reference numerals are explained below:
1. a steel core; 2. a rubber sleeve; 3. a cavity; 4. an outer sizing sleeve; 4a, a body; 4b and a handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-2, the utility model provides a tooling mold for reducing molybdenum tube powder feeding rate, which comprises a rubber sleeve 2 and a steel core 1, wherein the rubber sleeve 2 and the steel core 1 form a molybdenum tube static pressure forming mold, the steel core 1 is positioned inside the rubber sleeve 2, the outer wall of the steel core 1 is matched with the inner wall of the rubber sleeve 2 to form a cavity 3 for forming the molybdenum tube, the cavity 3 is the forming position of the molybdenum tube, the cavity 3 is filled with molybdenum powder and then is pressed by static pressure, during the pressing process, the rubber sleeve 2 has soft texture and can expand outwards along with the deformation during the pressing process, so that the cavity 3 is locally enlarged, the outer side of the rubber sleeve 2 is provided with an outer shaping sleeve 4 for reducing the outer expansion of the rubber sleeve 2 during the molybdenum tube forming, after the outer shaping sleeve 4 is arranged, the deformation of the rubber sleeve 2 can be weakened, thereby the increase of the cavity 3 is reduced, further the molybdenum powder required by molybdenum tube manufacturing is reduced, the inner wall of the outer shaping sleeve 4, the top of the outer sizing sleeve 4 is open and the bottom is sealed.
As an optional implementation mode, a positioning groove matched with the bottom end of the steel core 1 for positioning is formed at the bottom of the inner side of the outer sizing sleeve 4, the bottom end of the steel core 1 is in inserting fit with the positioning groove, and an inserting groove is formed in the positioning groove, so that the bottom end of the steel core 1 can be pre-positioned, the stability of the bottom end of the steel core 1 is improved, and a positioning structure is arranged between the existing steel core 1 and the rubber sleeve 2, so that the steel core 1 does not need to be inserted into the positioning;
the outer shaping sleeve 4 comprises a body 4a and two handles 4b, and the two handles 4b are symmetrically arranged on the upper parts of the two sides of the body 4a respectively; the body 4a is a metal barrel-shaped structure with a smooth inner wall, and the handle 4b is welded and fixed with the body 4 a; the body 4a and the handle 4b are both made of steel or iron, and the thickness is 15mm-20 mm; after the handle 4b is welded, the body 4a can be conveniently moved; after the rubber sleeve 2 and the steel core 1 are arranged inside the body 4a, molybdenum powder is injected from the top of the cavity 3 for static pressure press-forming, and in the press-forming process, the inner wall of the body 4a tightly tightens the outer wall of the rubber sleeve 2 to reduce the deformation of the rubber sleeve 2, so that the deformation of the cavity 3 is reduced, and the using amount of the molybdenum powder is reduced; the top edge of the body 4a is not lower than the top surface of the rubber sleeve 2.
By adopting the structure, the steel core 1 is matched with the rubber sleeve 2 and then is inserted into the outer sizing sleeve 4, molybdenum powder raw materials are filled into the cavity 3 for static pressure forming, the outer wall of the rubber sleeve 2 can be externally limited by the inner wall of the outer sizing sleeve 4 in the forming process, the inner wall of the rubber sleeve 2 is extruded in the cavity 3 to deform after the molybdenum powder is pressed, so that the whole deformation of the rubber sleeve 2 is caused, and the outer sizing sleeve 4 can be externally limited by the rubber sleeve 2, so that the deformation of the rubber sleeve 2 is weakened, the deformation of the cavity 3 is weakened, and the feeding amount of the molybdenum powder is reduced;
by additionally arranging the outer sizing sleeve 4 on the outer side of the rubber sleeve 2, the outward expansion of the rubber sleeve 2 can be reduced by limiting the outer part of the rubber sleeve 2 when the molybdenum tube is subjected to isostatic pressing, so that the deformation of the cavity 3 is reduced, and the powder feeding rate of molybdenum powder is reduced; by adopting the outer shaping sleeve 4 to shape the outer part of the cavity 3, the outer expansion amount of the surface of the molybdenum tube after being formed can be reduced, thereby reducing the cutting amount in the subsequent machining process and improving the machining efficiency of the molybdenum tube.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a reduce molybdenum tube and throw frock mould of powder rate, is including rubber sleeve (2) and steel core (1) that constitute molybdenum tube static pressure forming die, this steel core (1) is located inside rubber sleeve (2), and the outer wall cooperation of this steel core (1) form die cavity (3) of shaping molybdenum tube behind rubber sleeve (2) inner wall, its characterized in that: the outer side of the rubber sleeve (2) is provided with an outer sizing sleeve (4) which reduces outward expansion of the rubber sleeve (2) when a molybdenum tube is formed, the inner wall of the outer sizing sleeve (4) is in clearance fit with the outer wall of the rubber sleeve (2), and the top of the outer sizing sleeve (4) is open and the bottom of the outer sizing sleeve is sealed.
2. The tooling die for reducing the powder feeding rate of the molybdenum tube as claimed in claim 1, wherein: the bottom of the inner side of the outer shaping sleeve (4) is provided with a positioning groove matched with the bottom end of the steel core (1) for positioning, and the bottom end of the steel core (1) is matched with the positioning groove in an inserting manner.
3. The tooling die for reducing the powder feeding rate of the molybdenum tube as claimed in claim 1, wherein: the outer shaping sleeve (4) comprises a body (4a) and two handles (4b), wherein the two handles (4b) are symmetrically arranged on the upper parts of the two sides of the body (4a) respectively.
4. The tooling die for reducing the powder feeding rate of the molybdenum tube as claimed in claim 3, wherein: the body (4a) is of a metal barrel-shaped structure with a smooth inner wall, and the handle (4b) is welded and fixed with the body (4 a).
5. The tooling die for reducing the powder feeding rate of the molybdenum tube as claimed in claim 4, wherein: the body (4a) and the handle (4b) are both made of steel or iron.
6. The tooling die for reducing the powder feeding rate of the molybdenum tube as claimed in claim 3, wherein: the top edge of the body (4a) is not lower than the top surface of the rubber sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922078229.8U CN211276511U (en) | 2019-11-27 | 2019-11-27 | Tooling die for reducing powder feeding rate of molybdenum tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922078229.8U CN211276511U (en) | 2019-11-27 | 2019-11-27 | Tooling die for reducing powder feeding rate of molybdenum tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211276511U true CN211276511U (en) | 2020-08-18 |
Family
ID=72037865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922078229.8U Active CN211276511U (en) | 2019-11-27 | 2019-11-27 | Tooling die for reducing powder feeding rate of molybdenum tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211276511U (en) |
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2019
- 2019-11-27 CN CN201922078229.8U patent/CN211276511U/en active Active
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