CN203809677U - Reinforced perfluoroethylene gasket - Google Patents
Reinforced perfluoroethylene gasket Download PDFInfo
- Publication number
- CN203809677U CN203809677U CN201420241746.7U CN201420241746U CN203809677U CN 203809677 U CN203809677 U CN 203809677U CN 201420241746 U CN201420241746 U CN 201420241746U CN 203809677 U CN203809677 U CN 203809677U
- Authority
- CN
- China
- Prior art keywords
- sheet metal
- gasket
- tetrafluoro spacer
- perfluoroethylene
- enhancement mode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a reinforced perfluoroethylene gasket comprising a gasket body made of perfluoroethylene. The reinforced perfluoroethylene gasket is characterized in that a metal plate is embedded in the gasket body. Compared with the prior art, the reinforced perfluoroethylene gasket has the advantages that by embedding the metal plate into the gasket body, the pressure resistance of the perfluoroethylene gasket is improved, and sealing effect of the perfluoroethylene gasket is improved.
Description
Technical field
The utility model relates to a kind of enhancement mode Tetrafluoro spacer.
Background technique
Tetrafluoro spacer, full name teflon gasket, being again PTFE pad or Teflon (Furtulon) pad abroad, is the product of being made through sintering again with pushing and die pressing moulding at normal temperatures by polytetrafluoroethylsuspending suspending resin, has the superperformances such as corrosion-resistant, anti-aging and non-conductive.Be applicable to temperature and in 180 ℃-250 ℃, in various aggressive mediums, make liner sealing and lubrication and seal, it can have good mechanical strength between-100 ℃～100 ℃.Tetrafluoro spacer is a kind of sealed product of cleaning, and any material that can not contact it forms and pollutes, and can be widely used in the industries such as food, medicine.
Existing Tetrafluoro spacer mainly contains pure Tetrafluoro spacer, tetrafluoro clip pack pad, expansion Tetrafluoro spacer, Modification teflon gasket, and these are several:
One, pure Tetrafluoro spacer
Pure Tetrafluoro spacer is through mechanical turning or cut the gasket seals such as the flat gasket that forms, V-arrangement pad, piston ring, ball valve packing ring by pure teflon rod, pipe, plate.Pure teflon gasket is a kind of sealed product of cleaning, and any material that can not contact it forms and pollutes, and can be widely used in the industries such as food, medicine.
Two, teflon clip pack pad
Teflon clip pack pad is to combine by asbestos packing sheet or without the cushion films such as asbestos slate and the ptfe sheet being coated on outside cushion film, V-type (dissecing type) tetrafluoro clip pack pad is formed by the turning of tetrafluoro plate machinery, and U-shaped (folding bag type) teflon clip pack pad is formed caking after cushion film bound edge by teflin tape.Have excellent corrosion resistance and good compression rebound rate concurrently, be widely used in various strong acid, highly basic, strong oxidation, chlorine and the not sealing of fair pollution medium.Conventionally in being applicable to, low pressure position.
Three, the polytetrafluoroethylsealed sealed pad that expands
Expand polytetrafluoroethylsealed sealed pad by polyflon, with sintering after mould compacting, form, there is excellent corrosion resistance, good self lubricity and adhesion, thus resistance to all chemical mediators almost, and there is the characteristics such as wear-resisting, withstand voltage, friction factor is low.Be widely used in pipeline, the pump of the aggressive mediums such as oil, chemical industry, metallurgy, machinery, food, electric power, the flange seal of valve various kinds of equipment.Serviceability temperature :-200 ℃---260 ℃ of working pressures: 0---20.0Mpa, when maintaining PTFE heat resistance and resistance to chemical reagents and resistance to bond etc. excellent specific property, also there is extraordinary creep resistant, cold flow and stress relaxation, but also the life-span that can extend thermal cycle is long, thereby realize the working life that increases pad.Varicosity Tetrafluoro spacer is applicable to doing narrow sealing surface and gasket width is had in the sealing equipment of a requirement very much.
Four, graphite-filled Tetrafluoro spacer
Graphite-filled Tetrafluoro spacer is again graphite modified Tetrafluoro spacer or black Tetrafluoro spacer, is to add a certain amount of bulking agent with polyflon, as glass fibre, bronze powder, molybdenum disulfide, graphite, carbon fiber etc., through mixed at high speed evenly after with molded, then make through high temperature sintering., there is outstanding compressibility, restorative and sealing.The sealing that the character that it is exclusive and advanced feature show and moment of torsion retentivity.On the creep properties of cold flow and material, overcome the shortcoming of conventional P TFE, it can keep bolt load better than traditional PTFE simultaneously, has so both improved the endurance of sealing, has reduced again the maintenance of flange.Graphite-filled Tetrafluoro spacer advantage: low friction ractor, good compression strength, improves wear-resisting; Make its use substantially exceed traditional PTFE, so not only improved environment but also saved cost.Applicable chemical industry, petrochemical industry, hydrocarbon reaction and power plant.
The Tetrafluoro spacer of above several types, crushing resistance is all undistinguished, and when the larger equipment of load capacity, performance performance needs further to be improved.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of compression resistance good enhancement mode Tetrafluoro spacer for above-mentioned prior art.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of enhancement mode Tetrafluoro spacer, comprise the shim body of being made by teflon, and it is characterized in that: described shim body inside is embedded with sheet metal.
As improvement, on described sheet metal, arrange porosely, in manufacture process, between teflon and sheet metal, can more combine closely like this.
Improve, on described sheet metal, the edge in hole is provided with external tooth again, can improve the combination degree between teflon and sheet metal, can also strengthen intensity and the compression resistance of whole enhancement mode Tetrafluoro spacer.
Preferably, the position that described sheet metal embeds is positioned at the central position of shim body.
As preferably, the width of described sheet metal is 2/3～4/5 of shim body width.
The one-body molded part that is integrated of described sheet metal and described shim body.
Preferred again, the thickness of described sheet metal is 1/3～1/5 of shim body thickness
Compared with prior art, the utility model has the advantage of: by being embedded sheet metal in shim body inside, thereby strengthened the compression resistance of Tetrafluoro spacer, the seal action of Tetrafluoro spacer is strengthened.
Accompanying drawing explanation
Fig. 1 is the planimetric map of enhancement mode Tetrafluoro spacer in the utility model embodiment.
Fig. 2 is the cross sectional representation at A-A place in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Enhancement mode Tetrafluoro spacer as depicted in figs. 1 and 2, comprises the annular gasket body 1 of being made by teflon, and this belt shim body 1 inside is embedded with sheet metal 2, distribute porose, and the edge in hole is provided with external tooth on sheet metal.Sheet metal 2 and shim body 1 are by mold pressing, sintering, the one-body molded part that is integrated of oven dry.
In the present embodiment, the position that sheet metal embeds is positioned at the central position of shim body, the width of sheet metal be shim body width 2/3～4/5 in any one numerical value, the thickness of sheet metal be shim body thickness 1/3～1/5 in any one numerical value.The sheet metal of selecting like this, after being combined with shim body, through experiment showed, that compression resistance is very remarkable.
Claims (7)
1. an enhancement mode Tetrafluoro spacer, comprises the shim body of being made by teflon, it is characterized in that: described shim body inside is embedded with sheet metal.
2. enhancement mode Tetrafluoro spacer according to claim 1, is characterized in that: on described sheet metal, arrange porose.
3. enhancement mode Tetrafluoro spacer according to claim 2, is characterized in that: on described sheet metal, the edge in hole is provided with external tooth.
4. enhancement mode Tetrafluoro spacer according to claim 1, is characterized in that: the position that described sheet metal embeds is positioned at the central position of shim body.
5. enhancement mode Tetrafluoro spacer according to claim 4, is characterized in that: the width of described sheet metal is 2/3～4/5 of shim body width.
6. enhancement mode Tetrafluoro spacer according to claim 1, is characterized in that: the one-body molded part that is integrated of described sheet metal and described shim body.
7. enhancement mode Tetrafluoro spacer according to claim 1, is characterized in that: the thickness of described sheet metal is 1/3～1/5 of shim body thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241746.7U CN203809677U (en) | 2014-05-12 | 2014-05-12 | Reinforced perfluoroethylene gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241746.7U CN203809677U (en) | 2014-05-12 | 2014-05-12 | Reinforced perfluoroethylene gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809677U true CN203809677U (en) | 2014-09-03 |
Family
ID=51448429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420241746.7U Expired - Fee Related CN203809677U (en) | 2014-05-12 | 2014-05-12 | Reinforced perfluoroethylene gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676480A (en) * | 2017-11-17 | 2018-02-09 | 东台市富康机械有限公司 | The anti-sticking pad of suspension transferring machine hydraulic station |
| CN109651663A (en) * | 2019-01-23 | 2019-04-19 | 绍兴精实密封件有限公司 | A kind of manufacture craft of polytetrafluoro asbestos cladding pad |
-
2014
- 2014-05-12 CN CN201420241746.7U patent/CN203809677U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676480A (en) * | 2017-11-17 | 2018-02-09 | 东台市富康机械有限公司 | The anti-sticking pad of suspension transferring machine hydraulic station |
| CN109651663A (en) * | 2019-01-23 | 2019-04-19 | 绍兴精实密封件有限公司 | A kind of manufacture craft of polytetrafluoro asbestos cladding pad |
| CN109651663B (en) * | 2019-01-23 | 2020-11-27 | 绍兴精实密封件有限公司 | Manufacturing process of polytetrafluoroethylene asbestos coated mat |
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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: 20140903 Termination date: 20190512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |