CN111059381A - Superfine PTFE (polytetrafluoroethylene) brown fiber felt for sealing and lubricating - Google Patents
Superfine PTFE (polytetrafluoroethylene) brown fiber felt for sealing and lubricating Download PDFInfo
- Publication number
- CN111059381A CN111059381A CN201911307118.8A CN201911307118A CN111059381A CN 111059381 A CN111059381 A CN 111059381A CN 201911307118 A CN201911307118 A CN 201911307118A CN 111059381 A CN111059381 A CN 111059381A
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- China
- Prior art keywords
- ptfe
- fiber felt
- superfine
- flange plate
- wall
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Classifications
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- 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
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/24—Flanged joints characterised by the sealing means specially adapted for unequal expansion of the parts of the joint
-
- 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
- F16N—LUBRICATING
- F16N15/00—Lubrication with substances other than oil or grease; Lubrication characterised by the use of particular lubricants in particular apparatus or conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/712—Weather resistant
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses an ultrafine PTFE (polytetrafluoroethylene) palm fiber felt for sealing and lubricating, relates to the technical field of PTFE application, and aims to solve the problems that the existing sealing element made of pure PTFE has high production cost and is lack of high elasticity, and the service life is influenced because the abrasion loss is large when sealing water and other liquids. All be provided with the position ring piece on the outer wall of first ring flange and second ring flange, and position ring piece and first ring flange and second ring flange structure as an organic whole, all be provided with connect the through-hole on first ring flange and the second ring flange, the externally mounted of position ring piece has the sealing member main part, be provided with the fine felt outer lining of superfine PTFE palm on the outer wall of sealing member main part, be provided with the silicon rubber outer loop on the inner wall of the fine felt outer lining of superfine PTFE palm, be provided with the buffer layer on the inner wall of silicon rubber outer loop, be provided with the silicon rubber inner ring on the inner wall of buffer layer, be provided with the fine felt inside lining of superfine PTFE palm on the inner wall of silicon rubber inner ring.
Description
Technical Field
The invention relates to the technical field of PTFE application, in particular to an ultrafine PTFE brown fiber felt for sealing and lubricating.
Background
Polytetrafluoroethylene (PTFE, abbreviated PTFE), is commonly referred to as a "non-stick coating" or "easy-to-clean material". The material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, and is almost insoluble in all solvents. Meanwhile, the polytetrafluoroethylene has the characteristic of high temperature resistance, has extremely low friction coefficient, can be used for lubricating, and becomes an ideal coating for easily cleaning the inner layer of the water pipe. Polytetrafluoroethylene is called "plastic king", and DuPont, a father of fluororesin, starts researching a substitute for Freon in 1936, collects part of tetrafluoroethylene, stores the tetrafluoroethylene in a steel cylinder, prepares for the next day for the next experiment, but after a pressure reducing valve of the steel cylinder is opened in the next day, no gas overflows, and the Teflon is regarded as gas leakage, but when the steel cylinder is weighed, the steel cylinder is found not to be reduced in weight. They saw the cylinder and found a large amount of white powder, which is polytetrafluoroethylene. Its production solves many problems in the fields of chemical industry, petroleum and pharmacy.
However, the existing sealing element made of pure PTFE has high production cost and lacks high elasticity, and the abrasion loss is large when sealing water quality and other liquids, so that the service life is influenced; therefore, the existing requirements are not met, and an ultrafine PTFE brown fiber felt for sealing lubrication is provided for the requirement.
Disclosure of Invention
The invention aims to provide an ultrafine PTFE (polytetrafluoroethylene) brown fiber felt for sealing and lubricating, which aims to solve the problems that the existing sealing element made of pure PTFE in the background art is high in production cost, lacks high elasticity, has large abrasion loss when sealing water and other liquids, and influences the service life.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a fine fibre felt of superfine PTFE palm for sealed lubrication, includes sealing member main part, first ring flange and second ring flange, all be provided with the position ring piece on the outer wall of first ring flange and second ring flange, and position ring piece and first ring flange and second ring flange structure as an organic whole, all be provided with connect the via hole on first ring flange and the second ring flange, the externally mounted of position ring piece has the sealing member main part, be provided with the fine fibre felt outer lining of superfine PTFE palm on the outer wall of sealing member main part, be provided with the silicon rubber outer loop on the inner wall of the fine fibre felt outer lining of superfine PTFE palm, be provided with the buffer layer on the inner wall of silicon rubber outer loop, be provided with the silicon rubber inner ring on the inner wall of buffer layer, be provided with the fine fibre felt inside lining of superfine PTFE palm on the inner.
Preferably, the first flange plate is fixedly connected with the second flange plate through a bolt, a screw is arranged on the bolt, and a nut is arranged at the joint of the screw and the first flange plate.
Preferably, the contact surface of the nut and the first flange plate is provided with a gasket mechanism, and the gasket mechanism comprises a spring gasket and a flat gasket.
Preferably, the buffer layer is internally provided with an annular spring, and two sides of the annular spring are respectively fixedly connected with the silicone rubber outer ring and the silicone rubber inner ring.
Preferably, the annular spring is made of weather-resistant steel.
Preferably, the outer lining of the superfine PTFE brown fiber felt and the inner lining of the superfine PTFE brown fiber felt comprise a brown fiber felt base cloth and superfine PTFE fiber layers, and the outer wall and the inner wall of the brown fiber felt base cloth are both provided with the superfine PTFE fiber layers.
Preferably, the superfine PTFE brown fiber felt outer lining and the superfine PTFE brown fiber felt inner lining are respectively and fixedly connected with the silicone rubber outer ring and the silicone rubber inner ring.
Preferably, the seal body is in interference fit with the retaining ring blocks on the first flange and the second flange.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can improve the waterproof sealing effect of the joint by arranging the superfine PTFE brown fiber felt lining on the silicon rubber inner ring, and the sealing element can play a better lubricating effect when used for a hydraulic cylinder oil seal because the friction coefficient of polytetrafluoroethylene is extremely low, while the superfine PTFE brown fiber felt outer lining on the silicon rubber outer ring plays a role in preventing water and dust outside the sealing element, and the sealing element also can delay the aging of silicon rubber to a certain extent and prolong the service life of the sealing element because of good corrosion resistance.
2. Through the inside at the sealing member set up annular spring, annular spring is made for resistant time steel and forms, has the obdurability of high-quality steel to and better corrosion resisting property, can adapt to the expend with heat and contract with cold influence of junction, and the better pressure change of coping pipeline, because of it has higher elasticity, so the wearing and tearing volume when can further reduce sealed quality of water class liquid.
3. By adopting the silicon rubber and the superfine PTFE brown fiber felt as main manufacturing materials of the sealing element, the silicon rubber and the superfine PTFE brown fiber felt have excellent weather resistance, can be used in most high-temperature and low-temperature environments, and have high universality.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a flange connection according to the present invention;
FIG. 3 is a schematic view of a partial structure of the flange of the present invention;
FIG. 4 is an enlarged view of a portion of the present invention at A;
FIG. 5 is a partial structure diagram of the ultrafine PTFE brown fiber felt of the present invention;
in the figure: 1. a seal body; 101. palm fiber felt base cloth; 102. a layer of ultra-fine PTFE fibers; 2. an outer lining of superfine PTFE brown fiber felt; 3. a silicone rubber outer ring; 4. a buffer layer; 5. an annular spring; 6. a silicon rubber inner ring; 7. lining with superfine PTFE brown fiber felt; 8. a first flange plate; 9. a second flange plate; 10. positioning the ring block; 11. a bolt; 12. a screw; 13. a nut; 14. a connecting through hole; 15. a washer mechanism; 151. a spring washer; 152. a flat washer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-5, an embodiment of the present invention is shown: the utility model provides a fine PTFE palm fiber felt for sealed lubrication, includes sealing member main part 1, first ring flange 8 and second ring flange 9, all be provided with position ring piece 10 on the outer wall of first ring flange 8 and second ring flange 9, and position ring piece 10 and first ring flange 8 and second ring flange 9 structure as an organic whole, all be provided with connect the via hole 14 on first ring flange 8 and the second ring flange 9, the externally mounted of position ring piece 10 has sealing member main part 1, be provided with fine PTFE palm fiber felt outer lining 2 on the outer wall of sealing member main part 1, be provided with silicon rubber outer ring 3 on the inner wall of fine PTFE palm fiber felt outer lining 2, be provided with buffer layer 4 on the inner wall of silicon rubber outer ring 3, be provided with silicon rubber inner ring 6 on the inner wall of buffer layer 4, be provided with fine PTFE palm fiber felt inside lining 7 on silicon rubber inner ring 6's the inner wall.
Further, first ring flange 8 passes through bolt 11 and second ring flange 9 fixed connection, be provided with screw rod 12 on the bolt 11, nut 13 is installed with the junction of first ring flange 8 to screw rod 12, and nut 13 has played the effect of the fixed first ring flange 8 of locking and second ring flange 9, adopts bolt 11 fixed, and the dismouting is comparatively convenient.
Further, the contact surface of the nut 13 and the first flange plate 8 is provided with a washer mechanism 15, the washer mechanism 15 comprises a spring washer 151 and a flat washer 152, the flat washer 152 can disperse the pressure of the contact surface, friction is reduced, the spring washer 151 can give an elastic force to the nut 13, the nut 13 is tightly abutted, and the nut 13 is not easy to loosen.
Further, the inside of buffer layer 4 is provided with annular spring 5, and annular spring 5's both sides respectively with silicon rubber outer loop 3 and 6 fixed connection in the silicon rubber, annular spring 5 can improve the elasticity of sealing member, makes it can adapt to the expend with heat and contract with cold influence of junction to and the better pressure change of coping with the pipeline.
Furthermore, the annular spring 5 is made of weathering steel, the weathering steel is between common steel and stainless steel, and is made of plain carbon steel with a small amount of corrosion-resistant elements such as copper, nickel and the like, so that the annular spring has the advantages of high-quality steel toughness, good corrosion resistance and long service life.
Further, the superfine PTFE brown fiber felt outer lining 2 and the superfine PTFE brown fiber felt inner lining 7 comprise a brown fiber felt base cloth 101 and a superfine PTFE fiber layer 102, and the superfine PTFE fiber layer 102 is arranged on the outer wall and the inner wall of the brown fiber felt base cloth 101, so that the fabric has good weather resistance, corrosion resistance and waterproof performance.
Further, superfine PTFE palm fiber felt outer lining 2 and superfine PTFE palm fiber felt inside lining 7 respectively with silicon rubber outer loop 3 and silicon rubber inner loop 6 fixed connection, the waterproof sealing effect of junction can be improved to superfine PTFE palm fiber felt inside lining 7 on the silicon rubber inner loop 6, and because of polytetrafluoroethylene coefficient of friction is extremely low, so can play better lubricated effect when this sealing member is used for the oil blanket, superfine PTFE palm fiber felt outer lining 2 of silicon rubber outer loop 3 has played for the outside waterproof dirt-proof effect of sealing member, and because of it has good corrosion resistance, so also can delay the silicon rubber ageing to a certain extent.
Furthermore, the sealing element main body 1 is in interference fit with the positioning ring blocks 10 on the first flange plate 8 and the second flange plate 9, the interference fit connection is tight, the bearing capacity is high, and the sealing element can adapt to a high-pressure sealing environment.
The working principle is as follows: when in use, the sealing element can be used for sealing work in various occasions such as flange connection, oil seal and the like, the annular spring 5 is arranged in the sealing element, the annular spring 5 is made of weather-resistant steel, has toughness of high-quality steel and better corrosion resistance, can adapt to the influence of expansion with heat and contraction with cold at a joint and better cope with the pressure change of a pipeline, the inner wall and the outer wall of the sealing element are made of silicon rubber materials and can be in interference fit with the joint, the bearing capacity is higher, the silicon rubber inner ring 6 is provided with the superfine PTFE palm fiber felt lining 7, the waterproof sealing effect at the joint can be improved, and because the friction coefficient of polytetrafluoroethylene is extremely low, the sealing element can play a better lubricating effect when being used for the oil seal of a hydraulic cylinder, the superfine PTFE palm fiber felt lining 2 on the silicon rubber outer ring 3 plays a role in preventing water and dust outside the sealing element and has good corrosion resistance, so that the silicone rubber aging can be delayed to a certain extent.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A superfine PTFE palm fiber felt for sealing lubrication comprises a sealing element main body (1), a first flange plate (8) and a second flange plate (9), and is characterized in that: the outer walls of the first flange plate (8) and the second flange plate (9) are both provided with a positioning ring block (10), and the positioning ring block (10), the first flange plate (8) and the second flange plate (9) are of an integral structure, the first flange plate (8) and the second flange plate (9) are both provided with connecting through holes (14), a sealing element main body (1) is arranged outside the positioning ring block (10), an ultra-fine PTFE brown fiber felt outer lining (2) is arranged on the outer wall of the sealing element main body (1), the inner wall of the superfine PTFE brown fiber felt outer lining (2) is provided with a silicon rubber outer ring (3), a buffer layer (4) is arranged on the inner wall of the silicon rubber outer ring (3), a silicon rubber inner ring (6) is arranged on the inner wall of the buffer layer (4), an inner wall of the silicon rubber inner ring (6) is provided with an ultrafine PTFE brown fiber felt lining (7).
2. The ultrafine PTFE brown fiber felt for seal lubrication according to claim 1, wherein: the first flange plate (8) is fixedly connected with the second flange plate (9) through a bolt (11), a screw rod (12) is arranged on the bolt (11), and a nut (13) is installed at the joint of the screw rod (12) and the first flange plate (8).
3. The ultrafine PTFE brown fiber felt for seal lubrication according to claim 2, wherein: and a washer mechanism (15) is arranged on the contact surface of the nut (13) and the first flange plate (8), and the washer mechanism (15) comprises a spring washer (151) and a flat washer (152).
4. The ultrafine PTFE brown fiber felt for seal lubrication according to claim 1, wherein: the buffer layer (4) is internally provided with an annular spring (5), and two sides of the annular spring (5) are respectively fixedly connected with the silicon rubber outer ring (3) and the silicon rubber inner ring (6).
5. The ultrafine PTFE brown fiber felt for seal lubrication according to claim 4, wherein: the annular spring (5) is made of weathering resistant steel.
6. The ultrafine PTFE brown fiber felt for seal lubrication according to claim 1, wherein: the outer lining (2) and the inner lining (7) of the superfine PTFE brown fiber felt comprise brown fiber felt base cloth (101) and a superfine PTFE fiber layer (102), and the outer wall and the inner wall of the brown fiber felt base cloth (101) are provided with the superfine PTFE fiber layer (102).
7. The ultrafine PTFE brown fiber felt for seal lubrication according to claim 1, wherein: the superfine PTFE brown fiber felt outer lining (2) and the superfine PTFE brown fiber felt inner lining (7) are fixedly connected with the silicon rubber outer ring (3) and the silicon rubber inner ring (6) respectively.
8. The ultrafine PTFE brown fiber felt for seal lubrication according to claim 1, wherein: the sealing element main body (1) is in interference fit with the positioning ring blocks (10) on the first flange plate (8) and the second flange plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307118.8A CN111059381A (en) | 2019-12-18 | 2019-12-18 | Superfine PTFE (polytetrafluoroethylene) brown fiber felt for sealing and lubricating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307118.8A CN111059381A (en) | 2019-12-18 | 2019-12-18 | Superfine PTFE (polytetrafluoroethylene) brown fiber felt for sealing and lubricating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111059381A true CN111059381A (en) | 2020-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911307118.8A Pending CN111059381A (en) | 2019-12-18 | 2019-12-18 | Superfine PTFE (polytetrafluoroethylene) brown fiber felt for sealing and lubricating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111059381A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2083575A (en) * | 1980-08-26 | 1982-03-24 | Gen Connector Corp | Seals |
| EP1327801A2 (en) * | 2002-01-15 | 2003-07-16 | General Electric Company | A composite tubular woven seal for an inner compressor discharge case |
| CN202867836U (en) * | 2012-09-26 | 2013-04-10 | 中国石油化工股份有限公司 | Spring composite sealing gasket |
| CN206600461U (en) * | 2017-03-14 | 2017-10-31 | 上海渊虹超高压水射流技术有限公司 | Low pressure seal valve macromolecule strengthens seal assembly |
| CN206600466U (en) * | 2017-03-14 | 2017-10-31 | 上海渊虹超高压水射流技术有限公司 | High pressure sealing valve macromolecule strengthens seal assembly |
| CN107387753A (en) * | 2017-09-05 | 2017-11-24 | 镇江春环密封件集团有限公司 | A kind of teflon gasket |
| 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 |
| CN107744690A (en) * | 2017-10-13 | 2018-03-02 | 宿迁南航新材料与装备制造研究院有限公司 | MULTILAYER COMPOSITE felt is used in one kind filtering |
| CN108709033A (en) * | 2018-08-06 | 2018-10-26 | 常州奥特斯丹智能装备科技有限公司 | Pipe flange |
-
2019
- 2019-12-18 CN CN201911307118.8A patent/CN111059381A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2083575A (en) * | 1980-08-26 | 1982-03-24 | Gen Connector Corp | Seals |
| EP1327801A2 (en) * | 2002-01-15 | 2003-07-16 | General Electric Company | A composite tubular woven seal for an inner compressor discharge case |
| CN202867836U (en) * | 2012-09-26 | 2013-04-10 | 中国石油化工股份有限公司 | Spring composite sealing gasket |
| CN206600461U (en) * | 2017-03-14 | 2017-10-31 | 上海渊虹超高压水射流技术有限公司 | Low pressure seal valve macromolecule strengthens seal assembly |
| CN206600466U (en) * | 2017-03-14 | 2017-10-31 | 上海渊虹超高压水射流技术有限公司 | High pressure sealing valve macromolecule strengthens seal assembly |
| CN107387753A (en) * | 2017-09-05 | 2017-11-24 | 镇江春环密封件集团有限公司 | A kind of teflon gasket |
| CN107744690A (en) * | 2017-10-13 | 2018-03-02 | 宿迁南航新材料与装备制造研究院有限公司 | MULTILAYER COMPOSITE felt is used in one kind filtering |
| 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 |
| CN108709033A (en) * | 2018-08-06 | 2018-10-26 | 常州奥特斯丹智能装备科技有限公司 | Pipe flange |
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Application publication date: 20200424 |