CN107459748A - A kind of manufacture method of teflon gasket - Google Patents
A kind of manufacture method of teflon gasket Download PDFInfo
- Publication number
- CN107459748A CN107459748A CN201710790998.3A CN201710790998A CN107459748A CN 107459748 A CN107459748 A CN 107459748A CN 201710790998 A CN201710790998 A CN 201710790998A CN 107459748 A CN107459748 A CN 107459748A
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- China
- Prior art keywords
- parts
- hours
- fitted
- heating
- pressure
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000004809 Teflon Substances 0.000 title claims abstract description 11
- 229920006362 Teflon® Polymers 0.000 title claims abstract description 11
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 19
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 19
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003365 glass fiber Substances 0.000 claims abstract description 10
- 238000005245 sintering Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 7
- 239000004917 carbon fiber Substances 0.000 claims abstract description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 238000011282 treatment Methods 0.000 claims abstract description 6
- 239000011787 zinc oxide Substances 0.000 claims abstract description 6
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003513 alkali Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000013016 damping Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 235000013312 flour Nutrition 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of manufacture method of teflon gasket.It comprises the following steps：A, polytetrafluoroethylene (PTFE), glass fibre, zinc oxide, carbon fiber, bronze powder, talcum powder, three caprylyl isopropyl titanates, molybdenum disulfide are uniformly mixed, are fitted into mould and pressurize, the 25Mpa of pressure 18；B, it is fitted into heating furnace and sinters, 300 350 DEG C of sintering temperature, carried out being heated to 350 370 DEG C again after air-cooled 12 hours；C, constant temperature carries out pressurized treatments again after heating after 12 hours, and pressure is 17 20Mpa；D, cooled down 12 hours under normal temperature and carry out air-cooling moulding again.After adopting with the aforedescribed process, various compositions are equably merged to greatest extent improves its overall performance, make it have very high resilience, wearability is greatly improved, corrosion resistance is improved simultaneously, its damping effect significantly improves relative to traditional material, but also has non-skid property, it can be widely used in various occasions, add application.
Description
Technical field
The present invention relates to a kind of gasket material, specifically a kind of manufacture method of teflon gasket.
Background technology
Sealing gasket be in the industries such as oil, chemical industry, machinery, generating in order to realize sealing possessed by one it is essential
Part, although its structure very simple, but there is protrusion in various occasions, existing rubber cushion uses more will
Then polytetrafluoroethylene (PTFE) is blended, between existing material prescription as main material by adding various auxiliary materials
Collocation and manufacture method are unreasonable, are limited to its combination property, it is difficult to get a promotion, it is embodied in, on the one hand,
Its resilience is poor, easily causes poorly sealed problem over time, still further aspect, wears no resistance, and service life is short, further
Aspect, easily corroded, service life is very short, also has on the one hand, damping effect is also poor, is unfavorable for the use of bumper and absorbing shock
Occasion.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of resilience is good, wearability is good, corrosion-resistant and damping effect
The manufacture method of teflon gasket.
In order to solve the above-mentioned technical problem, the manufacture method of teflon gasket of the invention, comprises the following steps：
A, by 100 parts of polytetrafluoroethylene (PTFE), glass fibre 13-15 parts, zinc oxide 12-15 parts, carbon fiber 4-8 parts, bronze powder 15-
17 parts, talcum powder 5-7 parts, three caprylyl isopropyl titanate 5-7 parts, molybdenum disulfide 1-2 parts are uniformly mixed, and are fitted into mould
Pressurization, pressure 18-25Mpa；
B, it is fitted into heating furnace and sinters, 300-350 DEG C of sintering temperature, carries out being heated to 350- again after air-cooled 1-2 hours
370℃；
C, pressurized treatments, pressure 17-20Mpa are carried out again after constant temperature 1-2 hours after heating；
D, cooling 1-2 hours carry out air-cooling moulding again under normal temperature.
The glass fibre is alkali-resistant glass fibre.
330 DEG C of sintering temperature in the step B.
The heating-up temperature is 360 DEG C.
After adopting with the aforedescribed process, on the one hand, rational composition is employed in preparation process and strict is controlled
Proportioning between various compositions, the talcum powder of proper ratio and carbon fiber are particularly added to what is divided based on polytetrafluoroethylene (PTFE)
Among composition, another further aspect, sintering have passed through, constant temperature keeps special technique again for air-cooled, heating so that various compositions can be most
Equably being merged for limits improves its overall performance, makes it have very high resilience, wearability obtains
Great raising, while corrosion resistance is improved, its damping effect significantly improves relative to traditional material, but also have
Non-skid property, it can be widely used in various occasions, add application.
Embodiment
With reference to embodiment, the manufacture method of the teflon gasket of the present invention is made further specifically
It is bright.
Embodiment one：
The manufacture method of the teflon gasket of the present invention, comprises the following steps：
A, it is 100 parts of polytetrafluoroethylene (PTFE), 13 parts of alkali-resistant glass fibre, 12 parts of zinc oxide, 4 parts of carbon fiber, 15 parts of bronze powder is sliding
5 parts of stone flour, 5 parts of three caprylyl isopropyl titanate, 1 part of molybdenum disulfide are uniformly mixed, and are fitted into mould and are pressurizeed, pressure
18Mpa；
B, it is fitted into heating furnace and sinters, 300 DEG C of sintering temperature, carries out being heated to 350 DEG C again after air-cooled 1-2 hours；
C, constant temperature carries out pressurized treatments, pressure 17Mpa again after heating after 1 hour；
D, cooled down 1 hour under normal temperature and carry out air-cooling moulding again.
Embodiment two：
The manufacture method of the teflon gasket of the present invention, comprises the following steps：
A, it is 100 parts of polytetrafluoroethylene (PTFE), 14 parts of alkali-resistant glass fibre, 13 parts of zinc oxide, 6 parts of carbon fiber, 16 parts of bronze powder is sliding
6 parts of stone flour, 6 parts of three caprylyl isopropyl titanate, 1 part of molybdenum disulfide are uniformly mixed, and are fitted into mould and are pressurizeed, pressure
22Mpa；
B, it is fitted into heating furnace and sinters, 330 DEG C of sintering temperature, carried out being heated to 360 DEG C again after air-cooled 1 hour；
C, constant temperature carries out pressurized treatments, pressure 18Mpa again after heating after 1 hour；
D, cooled down 2 hours under normal temperature and carry out air-cooling moulding again.
Embodiment three：
The manufacture method of the teflon gasket of the present invention, comprises the following steps：
A, it is 100 parts of polytetrafluoroethylene (PTFE), 15 parts of alkali-resistant glass fibre, 15 parts of zinc oxide, 8 parts of carbon fiber, 17 parts of bronze powder is sliding
7 parts of stone flour, 7 parts of three caprylyl isopropyl titanate, 2 parts of molybdenum disulfide are uniformly mixed, and are fitted into mould and are pressurizeed, pressure
25Mpa；
B, it is fitted into heating furnace and sinters, 350 DEG C of sintering temperature, carried out being heated to 370 DEG C again after air-cooled 2 hours；
C, constant temperature carries out pressurized treatments, pressure 20Mpa again after heating after 2 hours；
D, cooled down 2 hours under normal temperature and carry out air-cooling moulding again.
Claims (4)
1. a kind of manufacture method of teflon gasket, it is characterised in that comprise the following steps：
A, by 100 parts of polytetrafluoroethylene (PTFE), glass fibre 13-15 parts, zinc oxide 12-15 parts, carbon fiber 4-8 parts, bronze powder 15-
17 parts, talcum powder 5-7 parts, three caprylyl isopropyl titanate 5-7 parts, molybdenum disulfide 1-2 parts are uniformly mixed, and are fitted into mould
Pressurization, pressure 18-25Mpa；
B, it is fitted into heating furnace and sinters, 300-350 DEG C of sintering temperature, carries out being heated to 350- again after air-cooled 1-2 hours
370℃；
C, pressurized treatments, pressure 17-20Mpa are carried out again after constant temperature 1-2 hours after heating；
D, cooling 1-2 hours carry out air-cooling moulding again under normal temperature.
2. according to the preparation method of the polytetrafluoroethylene sealing gasket piece described in claim 1, it is characterised in that：The glass fibre
For alkali-resistant glass fibre.
3. according to the preparation method of the polytetrafluoroethylene sealing gasket piece described in claim 1, it is characterised in that：In the step B
330 DEG C of sintering temperature.
4. according to the preparation method of the polytetrafluoroethylene sealing gasket piece described in claim 1, it is characterised in that：The heating-up temperature
For 360 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710790998.3A CN107459748A (en) | 2017-09-05 | 2017-09-05 | A kind of manufacture method of teflon gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710790998.3A CN107459748A (en) | 2017-09-05 | 2017-09-05 | A kind of manufacture method of teflon gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107459748A true CN107459748A (en) | 2017-12-12 |
Family
ID=60551965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710790998.3A Pending CN107459748A (en) | 2017-09-05 | 2017-09-05 | A kind of manufacture method of teflon gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107459748A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108440879A (en) * | 2018-03-06 | 2018-08-24 | 宁波联博斯密封材料有限公司 | High temperature pressurised ptfe composite and products thereof manufacturing process and ring pads |
| CN109337264A (en) * | 2018-10-25 | 2019-02-15 | 合肥沃龙彦高分子材料有限公司 | A kind of manufacturing method of teflon gasket |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071179A (en) * | 1991-09-29 | 1993-04-21 | 中国人民解放军工程兵工程学院 | Carbon-fibre reinforced polytetrafluorethylesealing sealing material and preparation method thereof |
| US5429782A (en) * | 1992-12-15 | 1995-07-04 | Nitto Denko Corporation | Process for producing polytetrafluoroethylene molded article |
| CN103146102A (en) * | 2013-04-08 | 2013-06-12 | 上海盈致橡塑制品有限公司 | Wear-resistance Teflon shock absorber gasket |
| CN103571111A (en) * | 2012-07-22 | 2014-02-12 | 上海利隆化工化纤有限公司 | Polytetrafluoroethylene sealing gasket and preparation method thereof |
| CN106800732A (en) * | 2016-12-30 | 2017-06-06 | 安徽京鸿密封件技术有限公司 | The outside framework oil seal lip piece and its production technology of a kind of modified Teflon |
-
2017
- 2017-09-05 CN CN201710790998.3A patent/CN107459748A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071179A (en) * | 1991-09-29 | 1993-04-21 | 中国人民解放军工程兵工程学院 | Carbon-fibre reinforced polytetrafluorethylesealing sealing material and preparation method thereof |
| US5429782A (en) * | 1992-12-15 | 1995-07-04 | Nitto Denko Corporation | Process for producing polytetrafluoroethylene molded article |
| CN103571111A (en) * | 2012-07-22 | 2014-02-12 | 上海利隆化工化纤有限公司 | Polytetrafluoroethylene sealing gasket and preparation method thereof |
| CN103146102A (en) * | 2013-04-08 | 2013-06-12 | 上海盈致橡塑制品有限公司 | Wear-resistance Teflon shock absorber gasket |
| CN106800732A (en) * | 2016-12-30 | 2017-06-06 | 安徽京鸿密封件技术有限公司 | The outside framework oil seal lip piece and its production technology of a kind of modified Teflon |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108440879A (en) * | 2018-03-06 | 2018-08-24 | 宁波联博斯密封材料有限公司 | High temperature pressurised ptfe composite and products thereof manufacturing process and ring pads |
| CN109337264A (en) * | 2018-10-25 | 2019-02-15 | 合肥沃龙彦高分子材料有限公司 | A kind of manufacturing method of teflon gasket |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171212 |
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| RJ01 | Rejection of invention patent application after publication |