CN110330745B - Preparation method of adhesive PTFE oil seal for automobile - Google Patents
Preparation method of adhesive PTFE oil seal for automobile Download PDFInfo
- Publication number
- CN110330745B CN110330745B CN201910622117.6A CN201910622117A CN110330745B CN 110330745 B CN110330745 B CN 110330745B CN 201910622117 A CN201910622117 A CN 201910622117A CN 110330745 B CN110330745 B CN 110330745B
- Authority
- CN
- China
- Prior art keywords
- fluororubber
- parts
- adhesive
- oil seal
- rubber
- 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.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
-
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Material Composition (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a preparation method of an adhesive PTFE oil seal for an automobile, which comprises the following steps: s1, preparing fluororubber mucilage; s2, processing a metal framework; s3, preparing fluororubber for the rubber strip; s4, processing the PTFE sheet; s5, vulcanizing the PTFE oil seal; the weight part of the fluororubber in the step S1 is 100 parts; 1.8-2.5 parts of bisphenol AF and 0.4-0.8 part of BPP are taken as vulcanizing agents; 6-15 parts of high-activity magnesium oxide and 2-5 parts of calcium hydroxide are taken as active agents; the reinforcing agent is 5-15 parts of basic white carbon black and 15-30 parts of superfine barium sulfate; the invention has scientific and reasonable structure, safe and convenient use, improves the original common adhesive oil seal preparation, coats a special fluororubber mucilage tackifier for a plurality of times, and then vulcanizes and bonds the fluororubber mucilage tackifier, the fluororubber and the metal framework dipped in the adhesive solution together at high temperature and high pressure.
Description
Technical Field
The invention relates to the technical field of adhesive PTFE oil seals, in particular to a preparation method of an adhesive PTFE oil seal for an automobile.
Background
The oil seal is a common name of a sealing element, namely the sealing of lubricating oil, is a mechanical element for sealing grease, separates a part needing to be lubricated in a transmission part from a force-applying part, and prevents the lubricating oil from leaking, and the sealing element for static sealing and dynamic sealing is called as the oil seal.
With the development of the automobile industry, the requirements of higher rotating speed and longer service life are provided for the rotating shaft oil seal, and the PTFE material is favored because of low abrasion, good oil resistance and high and low temperature resistance, but the development is restricted by the defect of poor adhesion of the PTFE.
Disclosure of Invention
The invention provides a preparation method of an adhesive PTFE oil seal for an automobile, which can effectively solve the problems that the background technology puts forward the requirements of higher rotating speed and longer service life on a rotating shaft oil seal along with the development of the automobile industry, and PTFE materials are favored because of low abrasion, good oil resistance and high and low temperature resistance, but the development is restricted by the defect of poor adhesion of PTFE.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of an adhesive PTFE oil seal for an automobile comprises the following steps:
s1, preparation of fluororubber mucilage: taking low molecular weight raw rubber fluororubber A as a main material, adding a vulcanizing agent, an activator and a reinforcing agent, mixing and processing to obtain fluororubber rubber compound, and then dissolving the fluororubber rubber compound in an organic solvent according to a certain proportion;
s2, processing the metal framework: treating the skeleton with a phosphating solution, then soaking with a fluorine adhesive, and baking in a drying tunnel for later use;
s3, preparation of fluororubber for rubber strips: taking fluororubber B with higher molecular weight as a main material, matching with a vulcanizing agent, an activator, a reinforcing agent and a processing aid, mixing, processing, and finally shearing to prepare the required rubber strip;
s4, treatment of the Teflon sheet: treating a tetrafluoro sheet with a sodium naphthalene solution, degreasing and drying the tetrafluoro sheet with a solvent, then coating a fluororubber adhesive on a tetrafluoro adhesive surface, drying the dried tetrafluoro sheet, and finally coating a special fluororubber adhesive paste;
s5, vulcanization processing of the PTFE oil seal: the treated PTFE sheet, the rubber strip of the fluororubber compound B and the treated metal framework are vulcanized at one time to prepare the rubber material.
According to the technical scheme, the fluororubber A in the step S1 is 246 type low molecular weight ternary fluororubber, the molecular weight of the fluororubber is 5-10 ten thousand, and the molecular formula of the fluororubber is as follows:
according to the technical scheme, the weight part of the fluororubber in the step S1 is 100 parts;
1.8-2.5 parts of bisphenol AF and 0.4-0.8 part of BPP are taken as vulcanizing agents;
6-15 parts of high-activity magnesium oxide and 2-5 parts of calcium hydroxide are taken as active agents;
the reinforcing agent is 5-15 parts of basic white carbon black and 15-30 parts of superfine barium sulfate;
the organic solvent is one or more of methyl vinyl ketone, butanone, methanol and ethyl acetate.
According to the technical scheme, the fluorine immersion glue in the step S2 is one or more of 512, 0920 and 607.
According to the technical scheme, the drying tunnel temperature in the step S2 is 150-220 ℃, and the drying tunnel baking time is 15-30 minutes.
According to the technical scheme, the rubber B in the step S3 is 246 type ternary fluororubber with higher molecular weight, the molecular weight is 15-30 ten thousand, and the molecular formula is as follows:
according to the technical scheme, the weight part of the fluororubber in the step S3 is 100 parts;
the vulcanizing agent is 1.8-2.5 parts of bisphenol AF and 0.4-0.7 part of BPP;
the active agent is 2-5 parts of high-activity magnesium oxide and 4-7 parts of calcium hydroxide;
the reinforcing agent is 5-10 parts of basic white carbon black, 5-10 parts of diatomite and 10-20 parts of calcium silicate.
According to the above technical solution, the fluororubber adhesives in the step S4 are 512, 0920, 607.
According to the above technical scheme, the vulcanization pressure in the step S5 is 8-15MPa, the temperature is 160-180 ℃, and the time is 5-15 min.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure, safe and convenient use, improves the original common adhesive oil seal preparation, coats a special fluororubber mucilage tackifier for a plurality of times, and then vulcanizes and bonds the fluororubber mucilage tackifier, the fluororubber and the metal framework dipped in the adhesive solution together at high temperature and high pressure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1: as shown in fig. 1, the invention provides a technical solution, and a method for preparing an adhesive PTFE oil seal for an automobile comprises the following steps:
s1, preparation of fluororubber mucilage: taking low molecular weight raw rubber fluororubber A as a main material, adding a vulcanizing agent, an activator and a reinforcing agent, mixing and processing to obtain fluororubber rubber compound, and then dissolving the fluororubber rubber compound in an organic solvent according to a certain proportion;
s2, processing the metal framework: treating the skeleton with a phosphating solution, then soaking with a fluorine adhesive, and baking in a drying tunnel for later use;
s3, preparation of fluororubber for rubber strips: taking fluororubber B with higher molecular weight as a main material, matching with a vulcanizing agent, an activator, a reinforcing agent and a processing aid, mixing, processing, and finally shearing to prepare the required rubber strip;
s4, treatment of the Teflon sheet: treating a tetrafluoro sheet with a sodium naphthalene solution, degreasing and drying the tetrafluoro sheet with a solvent, then coating a fluororubber adhesive on a tetrafluoro adhesive surface, drying the dried tetrafluoro sheet, and finally coating a special fluororubber adhesive paste;
s5, vulcanization processing of the PTFE oil seal: the treated PTFE sheet, the rubber strip of the fluororubber compound B and the treated metal framework are vulcanized at one time to prepare the rubber material.
According to the technical scheme, the fluororubber A in the step S1 is 246 type low molecular weight ternary fluororubber, the molecular weight of the fluororubber is 5-10 ten thousand, and the molecular formula of the fluororubber is as follows:
according to the technical scheme, the weight part of the fluororubber in the step S1 is 100 parts;
2.1 parts of bisphenol AF serving as a vulcanizing agent and 0.6 part of BPP serving as a BPP;
the active agent is 10 parts of high-activity magnesium oxide and 3 parts of calcium hydroxide;
10 parts of basic white carbon black and 25 parts of superfine barium sulfate as reinforcing agents;
the organic solvent is one or more of methyl vinyl ketone, butanone, methanol and ethyl acetate.
According to the technical scheme, the fluorine immersion glue in the step S2 is one or more of 512, 0920 and 607.
According to the technical scheme, the temperature of the drying tunnel in the step S2 is 200 ℃, and the baking time of the drying tunnel is 23 minutes.
According to the technical scheme, the rubber B in the step S3 is 246 type ternary fluororubber with higher molecular weight, the molecular weight is 15-30 ten thousand, and the molecular formula is as follows:
according to the technical scheme, the weight part of the fluororubber in the step S3 is 100 parts;
2.2 parts of bisphenol AF serving as a vulcanizing agent and 0.6 part of BPP serving as a BPP;
the active agent is 3.5 parts of high-activity magnesium oxide and 6 parts of calcium hydroxide;
the reinforcing agent is 8 parts of basic white carbon black, 7 parts of diatomite and 15 parts of calcium silicate.
According to the above technical solution, the fluororubber adhesives in step S4 are 512, 0920, 607.
According to the technical scheme, the vulcanization pressure in the step S5 is 12MPa, the temperature is 170 ℃, and the time is 10 min.
Example 2: as shown in fig. 1, the invention provides a technical solution, and a method for preparing an adhesive PTFE oil seal for an automobile comprises the following steps:
s1, preparation of fluororubber mucilage: taking low molecular weight raw rubber fluororubber A as a main material, adding a vulcanizing agent, an activator and a reinforcing agent, mixing and processing to obtain fluororubber rubber compound, and then dissolving the fluororubber rubber compound in an organic solvent according to a certain proportion;
s2, processing the metal framework: treating the skeleton with a phosphating solution, then soaking with a fluorine adhesive, and baking in a drying tunnel for later use;
s3, preparation of fluororubber for rubber strips: taking fluororubber B with higher molecular weight as a main material, matching with a vulcanizing agent, an activator, a reinforcing agent and a processing aid, mixing, processing, and finally shearing to prepare the required rubber strip;
s4, treatment of the Teflon sheet: treating a tetrafluoro sheet with a sodium naphthalene solution, degreasing and drying the tetrafluoro sheet with a solvent, then coating a fluororubber adhesive on a tetrafluoro adhesive surface, drying the dried tetrafluoro sheet, and finally coating a special fluororubber adhesive paste;
s5, vulcanization processing of the PTFE oil seal: the treated PTFE sheet, the rubber strip of the fluororubber compound B and the treated metal framework are vulcanized at one time to prepare the rubber material.
According to the technical scheme, the fluororubber A in the step S1 is 246 type low molecular weight ternary fluororubber, the molecular weight of the fluororubber is 5-10 ten thousand, and the molecular formula of the fluororubber is as follows:
according to the technical scheme, the weight part of the fluororubber in the step S1 is 100 parts;
1.9 parts of bisphenol AF serving as a vulcanizing agent and 0.6 part of BPP serving as a BPP;
the active agent is 10 parts of high-activity magnesium oxide and 3 parts of calcium hydroxide;
the reinforcing agent is 12 parts of basic white carbon black and 21 parts of superfine barium sulfate;
the organic solvent is one or more of methyl vinyl ketone, butanone, methanol and ethyl acetate.
According to the technical scheme, the fluorine immersion glue in the step S2 is one or more of 512, 0920 and 607.
According to the technical scheme, the temperature of the drying tunnel in the step S2 is 150 ℃, and the baking time of the drying tunnel is 30 minutes.
According to the technical scheme, the rubber B in the step S3 is 246 type ternary fluororubber with higher molecular weight, the molecular weight is 15-30 ten thousand, and the molecular formula is as follows:
according to the technical scheme, the weight part of the fluororubber in the step S3 is 100 parts;
1.8 parts of bisphenol AF serving as a vulcanizing agent and 0.7 part of BPP serving as a BPP;
the active agent is 2 parts of high-activity magnesium oxide and 4 parts of calcium hydroxide;
the reinforcing agent is 5 parts of basic white carbon black, 5 parts of diatomite and 10 parts of calcium silicate.
According to the above technical solution, the fluororubber adhesives in step S4 are 512, 0920, 607.
According to the technical scheme, the vulcanization pressure in the step S5 is 8MPa, the temperature is 160 ℃, and the time is 15 min.
Example 3: as shown in fig. 1, the invention provides a technical solution, and a method for preparing an adhesive PTFE oil seal for an automobile comprises the following steps:
s1, preparation of fluororubber mucilage: taking low molecular weight raw rubber fluororubber A as a main material, adding a vulcanizing agent, an activator and a reinforcing agent, mixing and processing to obtain fluororubber rubber compound, and then dissolving the fluororubber rubber compound in an organic solvent according to a certain proportion;
s2, processing the metal framework: treating the skeleton with a phosphating solution, then soaking with a fluorine adhesive, and baking in a drying tunnel for later use;
s3, preparation of fluororubber for rubber strips: taking fluororubber B with higher molecular weight as a main material, matching with a vulcanizing agent, an activator, a reinforcing agent and a processing aid, mixing, processing, and finally shearing to prepare the required rubber strip;
s4, treatment of the Teflon sheet: treating a tetrafluoro sheet with a sodium naphthalene solution, degreasing and drying the tetrafluoro sheet with a solvent, then coating a fluororubber adhesive on a tetrafluoro adhesive surface, drying the dried tetrafluoro sheet, and finally coating a special fluororubber adhesive paste;
s5, vulcanization processing of the PTFE oil seal: the treated PTFE sheet, the rubber strip of the fluororubber compound B and the treated metal framework are vulcanized at one time to prepare the rubber material.
According to the technical scheme, the fluororubber A in the step S1 is 246 type low molecular weight ternary fluororubber, the molecular weight of the fluororubber is 5-10 ten thousand, and the molecular formula of the fluororubber is as follows:
according to the technical scheme, the weight part of the fluororubber in the step S1 is 100 parts;
2.5 parts of bisphenol AF serving as a vulcanizing agent and 0.8 part of BPP serving as a BPP vulcanizing agent;
the active agent is 6 parts of high-activity magnesium oxide and 5 parts of calcium hydroxide;
the reinforcing agent is 15 parts of basic white carbon black and 15 parts of superfine barium sulfate;
the organic solvent is one or more of methyl vinyl ketone, butanone, methanol and ethyl acetate.
According to the technical scheme, the fluorine immersion glue in the step S2 is one or more of 512, 0920 and 607.
According to the technical scheme, the temperature of the drying tunnel in the step S2 is 220 ℃, and the baking time of the drying tunnel is 30 minutes.
According to the technical scheme, the rubber B in the step S3 is 246 type ternary fluororubber with higher molecular weight, the molecular weight is 15-30 ten thousand, and the molecular formula is as follows:
according to the technical scheme, the weight part of the fluororubber in the step S3 is 100 parts;
2.5 parts of bisphenol AF serving as a vulcanizing agent and 0.4 part of BPP serving as a BPP vulcanizing agent;
the active agent is 2 parts of high-activity magnesium oxide and 7 parts of calcium hydroxide;
the reinforcing agent is 10 parts of basic white carbon black, 10 parts of diatomite and 20 parts of calcium silicate.
According to the above technical solution, the fluororubber adhesives in step S4 are 512, 0920, 607.
According to the technical scheme, the vulcanization pressure in the step S5 is 15MPa, the temperature is 180 ℃, and the time is 5 min.
The comparison was made by examples 1-3, and the following table was prepared:
| contrast item | Example 1 | Example 2 | Example 3 |
| Resistance to rubbing | 0.02 | 0.03 | 0.02 |
| Single lip bearing | 1.50Mpa | 1.47Mpa | 1.43Mpa |
| High temperature resistance | 350 degree | 343 degree | 345 degree |
The comparison of examples 1 to 3 shows that the rubber composition is optimal in terms of friction resistance, single-lip pressure bearing and high temperature resistance, and example 1 is suitable for popularization and application.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure, safe and convenient use, improves the original common adhesive oil seal preparation, coats a special fluororubber mucilage tackifier for a plurality of times, and then vulcanizes and bonds the fluororubber mucilage tackifier, the fluororubber and the metal framework dipped in the adhesive solution together at high temperature and high pressure.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The preparation method of the adhesive PTFE oil seal for the automobile is characterized by comprising the following steps of: the method comprises the following steps:
s1, preparation of fluororubber mucilage: taking low molecular weight raw rubber fluororubber A as a main material, adding a vulcanizing agent, an activator and a reinforcing agent, mixing and processing to obtain fluororubber rubber compound, and then dissolving the fluororubber rubber compound in an organic solvent according to a certain proportion;
s2, processing the metal framework: treating the skeleton with a phosphating solution, then soaking with a fluorine adhesive, and baking in a drying tunnel for later use;
s3, preparation of fluororubber for rubber strips: taking fluororubber B with higher molecular weight as a main material, matching with a vulcanizing agent, an activator, a reinforcing agent and a processing aid, mixing, processing, and finally shearing to prepare the required rubber strip;
s4, treatment of the Teflon sheet: treating a tetrafluoro sheet with a sodium naphthalene solution, degreasing and drying the tetrafluoro sheet with a solvent, then coating a fluororubber adhesive on a tetrafluoro adhesive surface, drying the dried tetrafluoro sheet, and finally coating a special fluororubber adhesive paste;
s5, vulcanization processing of the PTFE oil seal: the treated PTFE sheet, the rubber strip of the fluororubber compound B and the treated metal framework are vulcanized at one time to prepare the rubber;
in the step S1, the fluororubber A is 246 type ternary fluororubber with lower molecular weight, the molecular weight is 5-10 ten thousand, and the molecular formula is as follows:
in the step S3, the rubber B is 246 type ternary fluororubber with higher molecular weight, the molecular weight is 15-30 ten thousand, and the molecular formula is as follows:
2. the method for preparing the adhesive PTFE oil seal for automobiles according to claim 1, wherein the weight part of the fluororubber in the step S1 is 100;
1.8-2.5 parts of bisphenol AF and 0.4-0.8 part of BPP are taken as vulcanizing agents;
6-15 parts of high-activity magnesium oxide and 2-5 parts of calcium hydroxide are taken as active agents;
the reinforcing agent is 5-15 parts of basic white carbon black and 15-30 parts of superfine barium sulfate;
the organic solvent is one or more of methyl vinyl ketone, butanone, methanol and ethyl acetate.
3. The method for preparing the adhesive PTFE oil seal for the automobile according to claim 1, wherein the step S2 is carried out by dipping one or more of 512, 0920 and 607.
4. The method as claimed in claim 1, wherein the baking tunnel temperature in step S2 is 150 ℃ to 220 ℃, and the baking time of the baking tunnel is 15-30 minutes.
5. The method for preparing the adhesive PTFE oil seal for automobiles according to claim 1, wherein the weight part of the fluororubber in the step S3 is 100;
the vulcanizing agent is 1.8-2.5 parts of bisphenol AF and 0.4-0.7 part of BPP;
the active agent is 2-5 parts of high-activity magnesium oxide and 4-7 parts of calcium hydroxide;
the reinforcing agent is 5-10 parts of basic white carbon black, 5-10 parts of diatomite and 10-20 parts of calcium silicate.
6. The method for preparing an adhesive PTFE oil seal for automobiles according to claim 1, wherein the fluororubber adhesive in step S4 is 512, 0920, 607.
7. The method as claimed in claim 1, wherein the vulcanization pressure in step S5 is 8-15MPa, the temperature is 160-180 ℃ and the time is 5-15 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622117.6A CN110330745B (en) | 2019-07-10 | 2019-07-10 | Preparation method of adhesive PTFE oil seal for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622117.6A CN110330745B (en) | 2019-07-10 | 2019-07-10 | Preparation method of adhesive PTFE oil seal for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110330745A CN110330745A (en) | 2019-10-15 |
| CN110330745B true CN110330745B (en) | 2022-03-04 |
Family
ID=68146076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910622117.6A Active CN110330745B (en) | 2019-07-10 | 2019-07-10 | Preparation method of adhesive PTFE oil seal for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110330745B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112341956A (en) * | 2020-11-11 | 2021-02-09 | 青岛海力威新材料科技股份有限公司 | Heat vulcanization adhesive for fluororubber oil seal and preparation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201013899Y (en) * | 2006-12-26 | 2008-01-30 | 卢英 | Adhesion type polytetrafluorethylene oil seal |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60137977A (en) * | 1983-12-27 | 1985-07-22 | Yokohama Rubber Co Ltd:The | Adhesive composition |
| AU2001236043A1 (en) * | 2000-03-03 | 2001-09-12 | Toyoda Gosei Co. Ltd. | Resin hose for fuel |
| CN101531872B (en) * | 2009-04-28 | 2010-08-25 | 黑龙江省科学院石油化学研究院 | Room curing fluoro rubber adhesive and preparation method |
| CN101920569B (en) * | 2009-06-09 | 2014-05-07 | 章宏清 | Production method of temperature resistant and wear resistant oil seal |
| CN206816317U (en) * | 2017-05-11 | 2017-12-29 | 浙江发光橡胶密封件股份有限公司 | A kind of seal valve stem |
-
2019
- 2019-07-10 CN CN201910622117.6A patent/CN110330745B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201013899Y (en) * | 2006-12-26 | 2008-01-30 | 卢英 | Adhesion type polytetrafluorethylene oil seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110330745A (en) | 2019-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110330745B (en) | Preparation method of adhesive PTFE oil seal for automobile | |
| CN101936340A (en) | Fiber reinforced resin matrix self-lubricating compound sliding bearing and manufacturing method thereof | |
| CN106832712A (en) | A kind of lactoprene rotary shaft lip seal and preparation method thereof | |
| CN103992858A (en) | Environment-friendly thixotropic anti-rust oil | |
| KR102054703B1 (en) | Surface-treating agent for oil seal lip portion | |
| CN104529189B (en) | Preparation method of gelatin modified starch wetting agent | |
| CN102619979A (en) | Rubber-metal composite sealing element and manufacturing method thereof | |
| CN110655825A (en) | Glazing ink and glazing process thereof | |
| CN106753200B (en) | Non-adhesive silicone rubber sealant for base material and preparation method thereof | |
| CN112608666A (en) | Production process of oil-resistant, wear-resistant and corrosion-resistant sealing ring coating for oil field | |
| CN109236602B (en) | Intermittent chemical pump | |
| WO2017122585A1 (en) | Coating agent, surface coated elastic body, and surface coated rubber metal laminated body | |
| CN106700958A (en) | Method for bonding hydrogenated nitrile-butadiene rubber | |
| CN110762123A (en) | Three-layer composite self-lubricating material and preparation method thereof | |
| CN103923240A (en) | Activated polytetrafluoroethylene powder and composition comprising same | |
| CN107325347A (en) | A kind of many lip rubber seal | |
| CN116814163B (en) | Surface treating agent for promoting adhesion of metal framework and rubber and adhesion method thereof | |
| US6779801B2 (en) | Anti-fret primer for multilayer gaskets | |
| CN112011111A (en) | Ultra-high molecular weight polyethylene lining pipe and preparation method thereof | |
| CN108912573B (en) | Rubber-coated anchor chain and preparation method thereof | |
| CN105457872A (en) | Coating process of frame | |
| CN109605968B (en) | Process for improving thickness of graphite screen printing coating of aluminum piston | |
| CN109651663B (en) | Manufacturing process of polytetrafluoroethylene asbestos coated mat | |
| CN109021413A (en) | It is a kind of for coating the building rubber compound and preparation method thereof of broken wall machine bearing | |
| CN113831558B (en) | Preparation method of water-based butyl gloves without linings |
Legal Events
| 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 | ||
| CB02 | Change of applicant information |
Address after: 712000 west section of Jincheng Road, Xicheng District, Xingping City, Xianyang City, Shaanxi Province Applicant after: Shaanxi fenghang Technology Co.,Ltd. Address before: 712000 west section of Jincheng Road, Xicheng District, Xingping City, Xianyang City, Shaanxi Province Applicant before: SHAANXI FENGHANG RUBBER SEALING PARTS CO.,LTD. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |