CN216330213U - Mould for manufacturing steel lining polytetrafluoroethylene grid plate - Google Patents
Mould for manufacturing steel lining polytetrafluoroethylene grid plate Download PDFInfo
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- CN216330213U CN216330213U CN202122150805.2U CN202122150805U CN216330213U CN 216330213 U CN216330213 U CN 216330213U CN 202122150805 U CN202122150805 U CN 202122150805U CN 216330213 U CN216330213 U CN 216330213U
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Abstract
The utility model discloses a die for manufacturing a steel-lined polytetrafluoroethylene grid plate, which comprises a bottom plate, a positioning plate, an outer die, a rubber pad, a sealing strip, a cover plate, a die core and a blind plate, wherein the positioning plate is arranged above the bottom plate, the outer die is arranged above the positioning plate, and the bottom plate, the positioning plate and the outer die are fixedly connected into a whole through bolts; a plurality of positioning holes are formed in the positioning plate, and mold cores are installed in the positioning holes; the inner cavity of the outer mold is used for arranging a grid plate steel skeleton, polytetrafluoroethylene powder and a filler; a cover plate or a blind plate is fixed at the top of the outer mold through a bolt, and a rubber pad is clamped between the outer mold and the cover plate; sealing strips are additionally arranged between the bottom plate and the positioning plate, between the positioning plate and the outer die, between the bottom of the cover plate and the rubber pad, and between the outer die and the blind plate. This practicality can realize the preparation of steel lining polytetrafluoroethylene grid tray, and the application this mould can make processing technology simple and convenient, qualification rate height, with low costs.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the technical field of moulds, in particular to the technical field of moulds for manufacturing steel-lined polytetrafluoroethylene grid plates.
[ background of the utility model ]
The tower equipment is one of the most important equipment in the production of chemical industry, medicine, oil refining, food and the like, and the grid plate structure is most commonly used for supporting the internal packing. Because the corrosive property of the using environment is strong, the steel-lined polytetrafluoroethylene grid plate is generally manufactured by a method of sleeving a polytetrafluoroethylene pipe outside a steel part and welding the polytetrafluoroethylene pipe outside the steel part. The process has the defects of low strength, easy cracking and permeation, no temperature resistance and the like at the welding seam, and the problem of scrapping caused by easy cracking in the sintering process due to the adoption of the compression molding process. Therefore, a novel die for manufacturing the steel-lined polytetrafluoroethylene grid plate is needed, and the die is used for solving the problem of manufacturing the steel-lined polytetrafluoroethylene grid plate.
[ Utility model ] content
The utility model aims to solve the problems of complex process and low qualification rate of the manufacturing process of the steel-lined polytetrafluoroethylene grid plate in the prior art, and provides a die for manufacturing the steel-lined polytetrafluoroethylene grid plate.
In order to achieve the purpose, the utility model provides a die for manufacturing a steel-lined polytetrafluoroethylene grid plate, which comprises a bottom plate, a positioning plate, an outer die, a rubber pad, a sealing strip, a cover plate, a die core and a blind plate, wherein the positioning plate is arranged above the bottom plate; a plurality of positioning holes are formed in the positioning plate, and mold cores are installed in the positioning holes; the inner cavity of the outer mold is used for arranging a grid plate steel skeleton, polytetrafluoroethylene powder and a filler, and the gaps between the grid plate steel skeleton and the outer mold and between the grid plate steel skeleton and the mold core are uniform; a cover plate or a blind plate is fixed at the top of the outer mold through a bolt, and a rubber pad is clamped between the outer mold and the cover plate; sealing strips are additionally arranged between the bottom plate and the positioning plate, between the positioning plate and the outer die, between the bottom of the cover plate and the rubber pad, and between the outer die and the blind plate.
Preferably, the bottom plate, the positioning plate, the outer die, the cover plate and the blind plate are circumferentially and uniformly provided with bolt holes, the bolt holes are circular through holes, and the number of the bolt holes is 8.
Preferably, a plurality of positioning holes are uniformly distributed on the circumference of the positioning plate, the positioning holes are circular through holes with tapers, and the inner wall surfaces of the positioning holes and the outer peripheral surface of the mold core on the positioning plate are provided with tapers of 1 degree.
Preferably, the outer die is a structural plate with a II-shaped section, and the middle part of the outer die is a circular hollow hole; the cover plate is an original circular thin plate, a circular hollow hole is formed in the middle of the cover plate, and the diameter of the circular hollow hole in the middle of the cover plate is smaller than that of the circular hollow hole in the middle of the outer die.
The utility model has the beneficial effects that: the utility model adopts the integral sintering molding after mould pressing, the grid on the grid plate is basically molded, the size deviation is smaller when the later trimming is carried out, and the one-time qualification rate of the product can be greatly improved.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front view of a mold for manufacturing a steel-lined polytetrafluoroethylene grid according to the present invention;
FIG. 2 is a top view of a cover plate of a mold for making a steel-lined PTFE grid according to the present invention;
FIG. 3 is a front view of a mold for manufacturing a steel-lined PTFE grid according to the present invention in a second state;
FIG. 4 is a top view of a blind plate of a mold for making a steel-lined PTFE grid according to the present invention.
In the figure: 1-bottom plate, 2-positioning plate, 3-external mold, 4-grid plate steel skeleton, 5-polytetrafluoroethylene powder, 6-rubber pad, 7-sealing strip, 8-cover plate, 9-mold core, 10-filler and 11-blind plate.
[ detailed description ] embodiments
Referring to fig. 1, 2, 3 and 4, the utility model comprises a bottom plate 1, a positioning plate 2, an outer mold 3, a rubber pad 6, a sealing strip 7, a cover plate 8, a mold core 9 and a blind plate 11, wherein the positioning plate 2 is arranged above the bottom plate 1, the outer mold 3 is arranged above the positioning plate 2, bolt holes are formed in the bottom plate 1, the positioning plate 2, the outer mold 3, the cover plate 8 and the blind plate 11, the positions of the bolt holes in the bottom plate 1, the positioning plate 2, the outer mold 3, the cover plate 8 and the blind plate 11 are concentric, and the bottom plate 1, the positioning plate 2 and the outer mold 3 are fixedly connected into a whole through bolts; a plurality of positioning holes are formed in the positioning plate 2, and mold cores 9 are arranged in the positioning holes; the inner cavity of the outer die 3 is used for arranging a grid plate steel skeleton 4, polytetrafluoroethylene powder 5 and filler 10, and gaps between the grid plate steel skeleton 4 and the outer die 3 and between the grid plate steel skeleton 4 and the die core 9 are uniform and consistent; a cover plate 8 or a blind plate 11 is fixed at the top of the outer mold 3 through a bolt, and a rubber pad 6 is clamped between the outer mold 3 and the cover plate 8; sealing strips 7 are additionally arranged between the bottom plate 1 and the positioning plate 2, between the positioning plate 2 and the outer die 3, between the bottom of the cover plate 8 and the rubber pad 6, and between the outer die 3 and the blind plate 11.
Specifically, bolt holes are evenly distributed on the bottom plate 1, the positioning plate 2, the outer die 3, the cover plate 8 and the blind plate 11 in the circumferential direction, the bolt holes are circular through holes, and the number of the bolt holes is 8.
Specifically, the circumference equipartition has a plurality of locating holes on the locating plate 2, and the locating hole is for having the circular through-hole of tapering, and locating hole internal face, mold core 9 outer peripheral face on the locating plate 2 all have 1 tapering.
Specifically, the outer mold 3 is a structural plate with a II-shaped section, and the middle part of the outer mold 3 is a circular hollow hole; 8 former circular ring shape sheet metals of apron, 8 middle parts of apron are equipped with circular cavity hole, and the circular cavity hole diameter in 8 middle parts of apron is less than the circular cavity hole in 3 middle parts of external mold.
The working process of the utility model is as follows:
the die for manufacturing the steel lining polytetrafluoroethylene grid plate is explained in the working process by combining the attached drawing.
A. Designing a mould according to the size of a grid plate, so that the thickness of a polytetrafluoroethylene layer around a grid plate steel skeleton 4 of the grid plate is not less than 15 after mould pressing, and the size contains the machining allowance required by post-machining of a product;
B. the designed mould comprises a bottom plate 1, a positioning plate 2, an outer mould 3, a mould core 9 and a cover plate 8, wherein the positioning plate 2 and the mould core 9 have 1-degree taper during machining so as to facilitate demoulding after mould pressing; sealing strips 7 are arranged on two sides of the positioning plate 2, the bottom plate 1, the positioning plate 2 and the outer die 3 are connected together by bolts, and the die core 9 is arranged in a corresponding positioning hole of the positioning plate 2;
C. after the die is assembled according to the attached drawing 1, polytetrafluoroethylene powder 5 is put into the gap of the assembled die, a grid plate steel skeleton 4 is put into the gap when the die reaches the middle position, and the gaps among the steel skeleton 4, the outer die 3 and the die core 9 are uniform; adding polytetrafluoroethylene powder 5 into the die continuously until the end ports are flush, placing a rubber pad 6 on the end face, installing a sealing strip 7 on a cover plate 8, and connecting the sealing strip 7 with the die by using a bolt;
D. placing the mixture into an isobaric kettle for forming: compacting polytetrafluoroethylene powder 5 in an isobaric kettle to enable the powder to be coated on a grid plate steel skeleton 4, and removing a cover plate 8 to obtain a semi-finished product of the steel-lined polytetrafluoroethylene grid plate;
F. and naturally cooling to room temperature in a tetrafluoro sintering furnace, then removing the mold, and carrying out subsequent finishing on the polytetrafluoroethylene layer.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (4)
1. The die for manufacturing the steel-lined polytetrafluoroethylene grid plate is characterized in that: the novel die comprises a bottom plate (1), a positioning plate (2), an outer die (3), a rubber pad (6), a sealing strip (7), a cover plate (8), a die core (9) and a blind plate (11), wherein the positioning plate (2) is arranged above the bottom plate (1), the outer die (3) is arranged above the positioning plate (2), bolt holes are formed in the bottom plate (1), the positioning plate (2), the outer die (3), the cover plate (8) and the blind plate (11), the positions of the bolt holes in the bottom plate (1), the positioning plate (2), the outer die (3), the cover plate (8) and the blind plate (11) are concentric, and the bottom plate (1), the positioning plate (2) and the outer die (3) are fixedly connected into a whole through bolts; a plurality of positioning holes are formed in the positioning plate (2), and mold cores (9) are installed in the positioning holes; the inner cavity of the outer mold (3) is used for arranging a grid plate steel skeleton (4), polytetrafluoroethylene powder (5) and a filling material (10), and gaps between the grid plate steel skeleton (4) and the outer mold (3) and gaps between the grid plate steel skeleton (4) and the mold core (9) are uniform and consistent; a cover plate (8) or a blind plate (11) is fixed at the top of the outer die (3) through bolts, and a rubber pad (6) is clamped between the outer die (3) and the cover plate (8); sealing strips (7) are additionally arranged between the bottom plate (1) and the positioning plate (2), between the positioning plate (2) and the outer die (3), between the bottom of the cover plate (8) and the rubber pad (6), and between the outer die (3) and the blind plate (11).
2. The mold for manufacturing a steel-lined polytetrafluoroethylene grid as set forth in claim 1, wherein: bolt holes are evenly distributed on the bottom plate (1), the positioning plate (2), the outer die (3), the cover plate (8) and the blind plate (11) in the circumferential direction, the bolt holes are circular through holes, and the number of the bolt holes is 8.
3. The mold for manufacturing a steel-lined polytetrafluoroethylene grid as set forth in claim 1, wherein: a plurality of positioning holes are uniformly distributed on the circumference of the positioning plate (2), the positioning holes are circular through holes with tapers, and the inner wall surfaces of the positioning holes on the positioning plate (2) and the outer peripheral surface of the mold core (9) are provided with tapers of 1 degree.
4. The mold for manufacturing a steel-lined polytetrafluoroethylene grid as set forth in claim 1, wherein: the outer die (3) is a structural plate with a II-shaped section, and the middle part of the outer die (3) is a circular hollow hole; the cover plate (8) is an original circular thin plate, a circular hollow hole is formed in the middle of the cover plate (8), and the diameter of the circular hollow hole in the middle of the cover plate (8) is smaller than that of the circular hollow hole in the middle of the outer die (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122150805.2U CN216330213U (en) | 2021-09-07 | 2021-09-07 | Mould for manufacturing steel lining polytetrafluoroethylene grid plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122150805.2U CN216330213U (en) | 2021-09-07 | 2021-09-07 | Mould for manufacturing steel lining polytetrafluoroethylene grid plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216330213U true CN216330213U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122150805.2U Active CN216330213U (en) | 2021-09-07 | 2021-09-07 | Mould for manufacturing steel lining polytetrafluoroethylene grid plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117445260A (en) * | 2023-12-26 | 2024-01-26 | 天津轻快未来科技有限公司 | Forming die and forming process for net-size composite material of dense-cell product |
-
2021
- 2021-09-07 CN CN202122150805.2U patent/CN216330213U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117445260A (en) * | 2023-12-26 | 2024-01-26 | 天津轻快未来科技有限公司 | Forming die and forming process for net-size composite material of dense-cell product |
| CN117445260B (en) * | 2023-12-26 | 2024-04-19 | 天津轻快未来科技有限公司 | Forming die and forming process for net-size composite material of dense-cell product |
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