CN112940418A - Preparation formula of special valve sealing piece - Google Patents
Preparation formula of special valve sealing piece Download PDFInfo
- Publication number
- CN112940418A CN112940418A CN202110244475.5A CN202110244475A CN112940418A CN 112940418 A CN112940418 A CN 112940418A CN 202110244475 A CN202110244475 A CN 202110244475A CN 112940418 A CN112940418 A CN 112940418A
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- China
- Prior art keywords
- parts
- sealing piece
- special valve
- powder
- preparation formula
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- 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
- C08K3/02—Elements
- C08K3/04—Carbon
-
- 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
- C08K3/02—Elements
- C08K3/08—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
- C08K3/32—Phosphorus-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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- 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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a preparation formula of a special valve sealing sheet, which comprises the following components in parts by weight: 75 parts of tetrafluoro powder, 8-11 parts of carbon fiber, 5-8 parts of molybdenum disulfide, 1-3 parts of graphite, 0-1 part of glass fiber, 0-5 parts of copper powder and 3-5 parts of silicon dioxide powder. The preparation formula of the special valve sealing piece provided by the invention greatly improves the tensile strength, the elongation at break, the hardness and the density of the sealing piece, effectively prolongs the service life of the sealing piece, further better ensures the use effect and the service life of the special valve, and well promotes the development of enterprises and industries.
Description
Technical Field
The invention relates to the field of special valve, in particular to a preparation formula of a special valve sealing piece.
Background
A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate of a medium (liquid, gas, or powder) in a pipe or equipment by flowing or stopping the medium. The result of use and the life of valve will directly be influenced to the good or bad then of gasket, if the in-process gasket that uses damages, then normal shutoff can't be accomplished to the valve, has the medium to spill over by gasket department.
If the ordinary sealing piece is arranged in a special valve, dangerous media in the ordinary sealing piece can overflow to harm the surrounding environment or operators when the sealing piece is damaged. Therefore, a material with better tensile strength, elongation at break, hardness and density is needed to make the sealing sheet so as to ensure the service life and the use effect of the special valve.
Disclosure of Invention
The invention aims to overcome the defects and provide a preparation formula of the sealing sheet of the special valve, so that the tensile strength, the elongation at break, the hardness and the density of the sealing sheet are greatly improved, the service life of the sealing sheet is effectively prolonged, the use effect and the service life of the special valve are further better ensured, and the development of enterprises and industries is well promoted.
The purpose of the invention is realized by the following technical scheme:
a preparation formula of a special valve sealing piece comprises the following components in parts by weight: 75 parts of tetrafluoro powder, 8-11 parts of carbon fiber, 5-8 parts of molybdenum disulfide, 1-3 parts of graphite, 0-1 part of glass fiber, 0-5 parts of copper powder and 3-5 parts of silicon dioxide powder.
Preferably, the composition comprises the following components in parts by weight: 75 parts of tetrafluoro powder, 8 parts of carbon fiber, 5 parts of molybdenum disulfide, 3 parts of graphite, 1 part of glass fiber, 5 parts of copper powder and 3 parts of silicon dioxide powder.
As another optimization, the coating comprises the following components in parts by weight: 75 parts of tetrafluoro powder, 11 parts of carbon fiber, 8 parts of molybdenum disulfide, 1 part of graphite and 5 parts of silicon dioxide powder.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the formula greatly improves the tensile strength, the elongation at break, the hardness and the density of the sealing sheet, effectively prolongs the service life of the sealing sheet, further better ensures the use effect and the service life of the special valve, and well promotes the development of enterprises and industries.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
A preparation formula of a special valve sealing piece comprises the following components in parts by weight: 75 parts of tetrafluoro powder, 8 parts of carbon fiber, 5 parts of molybdenum disulfide, 3 parts of graphite, 1 part of glass fiber, 5 parts of copper powder and 3 parts of silicon dioxide powder.
Add molybdenum disulfide, copper powder and silica powder can effectual improvement gasket's intensity, add elongation at break and the service temperature that carbon fiber can improve the gasket, add the autonomic lubricated effect that graphite can improve the gasket, and then reduced the coefficient of friction of gasket. The maximum heat-resistant temperature of the sealing piece manufactured by the formula of the embodiment can reach 80-120 ℃, and the higher the temperature of the use environment of the sealing piece is, the shorter the whole service life of the sealing piece is.
Example 2
A preparation formula of a special valve sealing piece comprises the following components in parts by weight: 75 parts of tetrafluoro powder, 11 parts of carbon fiber, 8 parts of molybdenum disulfide, 1 part of graphite and 5 parts of silicon dioxide powder.
The component ratio of this embodiment can make the intensity of gasket increase, creep resistance can improve, makes the gasket can be better continuously use in high pressure, high temperature environment simultaneously, can effectively prevent the dust and erode simultaneously. The maximum heat-resistant temperature of the sealing piece manufactured by the formula of the embodiment can reach 120-200 ℃, and the higher the temperature of the use environment of the sealing piece is, the shorter the whole service life of the sealing piece is.
Comparative example 1
The tensile strength, elongation at break, hardness and density of the ordinary sealing piece, the sealing piece prepared according to the formulation of example 1 and the sealing piece prepared according to the formulation of example 2 were measured, respectively, to obtain the following table 1.
TABLE 1
As can be known from the table above, the sealing sheet made by the formula of the application has tensile strength, elongation at break, hardness and density superior to those of the existing common sealing sheet, can effectively improve the service life of the sealing sheet, reduce the wear rate of the sealing sheet, and further well ensure the use effect and the service life of the special valve.
As described above, the present invention can be preferably realized.
The invention discloses a preparation formula of a special valve sealing sheet, which comprises the following components in parts by weight: 75 parts of tetrafluoro powder, 8-11 parts of carbon fiber, 5-8 parts of molybdenum disulfide, 1-3 parts of graphite, 0-1 part of glass fiber, 0-5 parts of copper powder and 3-5 parts of silicon dioxide powder. The preparation formula of the special valve sealing piece provided by the invention greatly improves the tensile strength, the elongation at break, the hardness and the density of the sealing piece, effectively prolongs the service life of the sealing piece, further better ensures the use effect and the service life of the special valve, and well promotes the development of enterprises and industries.
Claims (3)
1. The preparation formula of the special valve sealing piece is characterized by comprising the following components in parts by weight: 75 parts of tetrafluoro powder, 8-11 parts of carbon fiber, 5-8 parts of molybdenum disulfide, 1-3 parts of graphite, 0-1 part of glass fiber, 0-5 parts of copper powder and 3-5 parts of silicon dioxide powder.
2. The preparation formula of the special valve sealing piece according to claim 1 is characterized by comprising the following components in parts by weight: 75 parts of tetrafluoro powder, 8 parts of carbon fiber, 5 parts of molybdenum disulfide, 3 parts of graphite, 1 part of glass fiber, 5 parts of copper powder and 3 parts of silicon dioxide powder.
3. The preparation formula of the special valve sealing piece according to claim 2 is characterized by comprising the following components in parts by weight: 75 parts of tetrafluoro powder, 11 parts of carbon fiber, 8 parts of molybdenum disulfide, 1 part of graphite and 5 parts of silicon dioxide powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110244475.5A CN112940418A (en) | 2021-03-05 | 2021-03-05 | Preparation formula of special valve sealing piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110244475.5A CN112940418A (en) | 2021-03-05 | 2021-03-05 | Preparation formula of special valve sealing piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112940418A true CN112940418A (en) | 2021-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110244475.5A Pending CN112940418A (en) | 2021-03-05 | 2021-03-05 | Preparation formula of special valve sealing piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN112940418A (en) |
Citations (4)
| 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 |
| CN1844671A (en) * | 2005-04-08 | 2006-10-11 | 沈阳气体压缩机股份有限公司 | Oil-free lubricated seal ring resistant to high temperature and high pressure |
| CN101775186A (en) * | 2010-02-01 | 2010-07-14 | 南京肯特新材料有限公司 | Polytetrafluoroethylene composite material and product preparation method thereof |
| CN103467896A (en) * | 2013-09-18 | 2013-12-25 | 常德翔宇设备制造有限公司 | Manufacturing method of enhanced polytetrafluoroethylene for high-medium pressure valve sealing element |
-
2021
- 2021-03-05 CN CN202110244475.5A patent/CN112940418A/en active Pending
Patent Citations (4)
| 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 |
| CN1844671A (en) * | 2005-04-08 | 2006-10-11 | 沈阳气体压缩机股份有限公司 | Oil-free lubricated seal ring resistant to high temperature and high pressure |
| CN101775186A (en) * | 2010-02-01 | 2010-07-14 | 南京肯特新材料有限公司 | Polytetrafluoroethylene composite material and product preparation method thereof |
| CN103467896A (en) * | 2013-09-18 | 2013-12-25 | 常德翔宇设备制造有限公司 | Manufacturing method of enhanced polytetrafluoroethylene for high-medium pressure valve sealing element |
Non-Patent Citations (3)
| Title |
|---|
| 周祥兴主编: "《中国塑料制品配方大全》", 31 December 1999, 中国物资出版社 * |
| 张邦华等: "《近代高分子科学》", 31 December 2006, 化学工业出版社 * |
| 王箴: "《化工词典 第二版》", 31 December 1979, 化学工业出版社 * |
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Application publication date: 20210611 |
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| RJ01 | Rejection of invention patent application after publication |