CN104121363A - Polytetrafluoroethylene sealing belt - Google Patents
Polytetrafluoroethylene sealing belt Download PDFInfo
- Publication number
- CN104121363A CN104121363A CN201410328979.5A CN201410328979A CN104121363A CN 104121363 A CN104121363 A CN 104121363A CN 201410328979 A CN201410328979 A CN 201410328979A CN 104121363 A CN104121363 A CN 104121363A
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- layer
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- carbon fiber
- rubber
- elasitic
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Abstract
The invention discloses a polytetrafluoroethylene sealing belt. A belt body is composed of a surface layer, an elastic layer and a fiber layer from outside to inside, the surface layer is made of expanded polytetrafluoroethylene in a machined mode, and the elastic layer is made of rubber in a composite mode. The fiber layer is made of carbon fibers and formed by at least three layers of carbon fibers in a tight press-fitting mode, the connection position of the fiber layer and the elastic layer is filled with carbon fiber particles in a distributed mode, the size of the carbon fiber particles is 55 micrometers to 95 micrometers, and the ratio of the thickness H1 of the surface layer to the thickness H2 of the elastic layer to the thickness H3 of the fiber layer is 4:5:3. Through the layer-by-layer function of the surface layer, the elastic layer and the fiber layer, the toughness, the retraction elasticity, the tensile strength and the compressive strength of the polytetrafluoroethylene sealing belt can be greatly improved, and the use performance of the polytetrafluoroethylene sealing belt can be greatly improved.
Description
Technical field
The present invention relates to a kind of sealing strip, particularly a kind of teflon seal tape.
Background technique
Teflon seal tape is the stuffing box packing of being manufactured a kind of very Unique of moulding by polytetrafluoroethyldispersion dispersion resin through unique processing technology, and product has good pliability, compression resilience, creep resistant, resistant of high or low temperature and excellent corrosion resistance, not aging, self lubricity.Because of its sealability brilliance, and install and use also very conveniently, become a kind of indispensable sealing materials of industry such as chemical industry, medicine, petrochemical industry, food and drink, electronics, electric power, metallurgy, boats and ships.Current teflon seal tape is mainly simple teflon body, and still Shortcomings of its tensile strength cannot meet the requirement that various sealing surfaces are sealed completely.
Summary of the invention
The object of the invention is, in order to overcome above deficiency, provides a kind of teflon seal tape, improves pliability, retraction elasticity, tensile strength, the compressive strength of sealing strip.
Object of the present invention realizes like this:
A kind of teflon seal tape of the present invention, comprises belt body, and wherein, described belt body ecto-entad is respectively the top layer being processed by expanded PTFE, is made up of the rubber combined elasitic layer forming and layer of fibers; Described layer of fibers is carbon fiber composition; In described layer of fibers, formed by least 3 layers of tight pressing of carbon fiber, described layer of fibers and described elasitic layer joint are filled and are distributed with carbon fiber particle, and the particle diameter of described carbon fiber particle is 55-95 micron; Described skin depth H1, elasitic layer thickness H2 are 4:5:3 with the ratio of fiber layer thickness H3.
Above-mentioned a kind of teflon seal tape, wherein, described elasitic layer can have one or more rubber combined forming, concrete as: nitrile rubber, fluorine rubber, silicone rubber, acrylate rubber etc.
Compared with prior art, the present invention has the following advantages:
1) top layer is used expanded PTFE, improves sealing strip pliability and compression resilience.
2) by elasitic layer, strengthen sealing strip tensile strength, be conducive to the application area of teflon seal tape.
3) multi-ply fibrous structure is strengthened sealing strip compression resistance, and layer of fibers and elasitic layer joint are filled and be distributed with carbon fiber particle, can improve sealing strip intensity, contributes to long-term lasting use of sealing strip.
4), through up to ten thousand science measuring and calculating, in the time that skin depth H1, elasitic layer thickness H2 are 4:5:3 with the ratio of fiber layer thickness H3, sealing strip is keeping better flexible while, sealing strip crushing resistance and tensile strength optimum.
A kind of teflon seal tape of the present invention, by top layer, elasitic layer, fibrolaminar successively effect, can improve pliability, retraction elasticity, tensile strength, the compressive strength of teflon seal tape greatly.Can greatly improve the usability of teflon seal tape.
Brief description of the drawings
Fig. 1 is sectional view of the present invention.
Fig. 2 is layer of fibers of the present invention and elasitic layer joint enlarged view.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in the figure, a kind of teflon seal tape of the present invention, comprises belt body, and wherein, described belt body ecto-entad is respectively the top layer 1 being processed by expanded PTFE, is made up of the rubber combined elasitic layer forming 2 and layer of fibers 3; Described layer of fibers 3 is carbon fiber composition; In described layer of fibers 3, formed by least 3 layers of tight pressing of carbon fiber, described layer of fibers 3 is filled and is distributed with carbon fiber particle 4 with described elasitic layer 2 joints, and the particle diameter of described carbon fiber particle 4 is 55-95 micron; Described top layer 1 thickness H1, elasitic layer 2 thickness H2 are 4:5:3 with the ratio of layer of fibers 3 thickness H3; Described elasitic layer 2 can have one or more rubber combined forming, concrete as: nitrile rubber, fluorine rubber, silicone rubber, acrylate rubber etc.
Compared with prior art, the present invention has the following advantages: top layer is used expanded PTFE, improves sealing strip pliability and compression resilience.By elasitic layer, strengthen sealing strip tensile strength, be conducive to the application area of teflon seal tape.Multi-ply fibrous structure is strengthened sealing strip compression resistance, and layer of fibers and elasitic layer joint are filled and be distributed with carbon fiber particle, can improve sealing strip intensity, contributes to long-term lasting use of sealing strip.Through up to ten thousand science measuring and calculating, in the time that skin depth H1, elasitic layer thickness H2 are 4:5:3 with the ratio of fiber layer thickness H3, sealing strip is keeping better flexible while, sealing strip crushing resistance and tensile strength optimum.
A kind of teflon seal tape of the present invention, by top layer, elasitic layer, fibrolaminar successively effect, can improve pliability, retraction elasticity, tensile strength, the compressive strength of teflon seal tape greatly.Can greatly improve the usability of teflon seal tape.
The prepared novel seal of the present invention by the performance data of teflin tape as following table:
The performance data of teflin tape for the prepared novel seal of table 1 the present invention
| Test event | Unit | Index |
| Pressure withstanding degree | Mpa | 20 |
| Performance density | g/cm 3 | 0.6 |
| Tensile strength | Mpa | 20 |
| Performance content of material | ％ | 0.5 |
| Elongation at break | ％ | 120 |
Above embodiment is only used to further illustrate the present invention; can not be interpreted as limiting the scope of the invention, some nonessential improvement that those skilled in the art's foregoing according to the present invention is made and adjustment all belong to protection scope of the present invention.
Claims (2)
1. a teflon seal tape, a kind of teflon seal tape, comprises belt body, it is characterized in that, described belt body ecto-entad is respectively the top layer being processed by expanded PTFE, is made up of the rubber combined elasitic layer forming and layer of fibers; Described layer of fibers is carbon fiber composition; In described layer of fibers, formed by least 3 layers of tight pressing of carbon fiber, described layer of fibers and described elasitic layer joint are filled and are distributed with carbon fiber particle, and the particle diameter of described carbon fiber particle is 55-95 micron; Described skin depth H1, elasitic layer thickness H2 are 4:5:3 with the ratio of fiber layer thickness H3.
2. a kind of teflon seal tape according to claim 1, is characterized in that, described elasitic layer can have one or more rubber combined forming, concrete as: nitrile rubber, fluorine rubber, silicone rubber, acrylate rubber etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328979.5A CN104121363A (en) | 2014-07-10 | 2014-07-10 | Polytetrafluoroethylene sealing belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328979.5A CN104121363A (en) | 2014-07-10 | 2014-07-10 | Polytetrafluoroethylene sealing belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104121363A true CN104121363A (en) | 2014-10-29 |
Family
ID=51766905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410328979.5A Pending CN104121363A (en) | 2014-07-10 | 2014-07-10 | Polytetrafluoroethylene sealing belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104121363A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606155A (en) * | 2017-09-05 | 2018-01-19 | 镇江春环密封件集团有限公司 | A kind of polytetrafluoroethylene (PTFE) rubber blanket |
| CN108192173A (en) * | 2017-12-11 | 2018-06-22 | 安徽银龙泵阀股份有限公司 | A kind of pressure resistance spool and its manufacture craft |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253250A (en) * | 1997-05-07 | 2000-05-17 | 日本皮拉工业株式会社 | Filling material for use in screw type gasket ring and said screw type gasket ring |
| CN1867645A (en) * | 2003-10-10 | 2006-11-22 | 飞斯利德有限两合公司 | Flat sealing material in the form of a reinforced composite foil (composite film) |
| US20080254296A1 (en) * | 2005-03-22 | 2008-10-16 | Bussan Nanotech Research Institute Inc. | Carbon Fibrous Conjunct and Composite Material Using Thereof |
| CN102093716A (en) * | 2010-12-30 | 2011-06-15 | 长沙理工大学 | Polyphenylene sulfide/polyether sulfone-based compound material and preparation method thereof as well as wear-resistant part prepared from polyphenylene sulfide/polyether sulfone-based compound material |
| CN103291920A (en) * | 2013-05-21 | 2013-09-11 | 镇江春环密封件集团有限公司 | Novel teflon band for sealing |
| CN103307278A (en) * | 2013-05-21 | 2013-09-18 | 镇江春环密封件集团有限公司 | Composite polymer material piston ring |
-
2014
- 2014-07-10 CN CN201410328979.5A patent/CN104121363A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1253250A (en) * | 1997-05-07 | 2000-05-17 | 日本皮拉工业株式会社 | Filling material for use in screw type gasket ring and said screw type gasket ring |
| CN1867645A (en) * | 2003-10-10 | 2006-11-22 | 飞斯利德有限两合公司 | Flat sealing material in the form of a reinforced composite foil (composite film) |
| US20080254296A1 (en) * | 2005-03-22 | 2008-10-16 | Bussan Nanotech Research Institute Inc. | Carbon Fibrous Conjunct and Composite Material Using Thereof |
| CN102093716A (en) * | 2010-12-30 | 2011-06-15 | 长沙理工大学 | Polyphenylene sulfide/polyether sulfone-based compound material and preparation method thereof as well as wear-resistant part prepared from polyphenylene sulfide/polyether sulfone-based compound material |
| CN103291920A (en) * | 2013-05-21 | 2013-09-11 | 镇江春环密封件集团有限公司 | Novel teflon band for sealing |
| CN103307278A (en) * | 2013-05-21 | 2013-09-18 | 镇江春环密封件集团有限公司 | Composite polymer material piston ring |
Non-Patent Citations (1)
| Title |
|---|
| 吴光华: "碳纤维在密封材料方面的应用", 《润滑与密封》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606155A (en) * | 2017-09-05 | 2018-01-19 | 镇江春环密封件集团有限公司 | A kind of polytetrafluoroethylene (PTFE) rubber blanket |
| CN108192173A (en) * | 2017-12-11 | 2018-06-22 | 安徽银龙泵阀股份有限公司 | A kind of pressure resistance spool and its manufacture craft |
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| C06 | 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: 20141029 |
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| RJ01 | Rejection of invention patent application after publication |