CN219299757U

CN219299757U - Corrosion-resistant screw gasket

Info

Publication number: CN219299757U
Application number: CN202223408167.0U
Authority: CN
Inventors: 高海传
Original assignee: Kunshan Fuguixiang Machinery Equipment Technology Co ltd
Current assignee: Kunshan Fuguixiang Machinery Equipment Technology Co ltd
Priority date: 2022-12-18
Filing date: 2022-12-18
Publication date: 2023-07-04
Anticipated expiration: 2032-12-18

Abstract

The utility model discloses a corrosion-resistant screw gasket, which comprises a corrosion-resistant layer, wherein a polytetrafluoroethylene layer is fixedly connected to the inner wall of the corrosion-resistant layer, a ceramic fiber layer is fixedly connected to the inner wall of the polytetrafluoroethylene layer, a high-strength layer is fixedly connected to the inner wall of the ceramic fiber layer, a wear-resistant and anti-slip layer is fixedly connected to the inner wall of the high-strength layer, the corrosion-resistant layer comprises a stainless steel layer, a graphite layer is fixedly connected to the inner wall of the stainless steel layer, a red copper layer is fixedly connected to the inner wall of the graphite layer, the high-strength layer comprises a nylon layer, a mica layer is fixedly connected to the inner wall of the nylon layer, and the wear-resistant and anti-slip layer comprises a nitrile rubber layer. The gasket has the advantages of waterproof, oil-resistant, dustproof, sealing, heat insulation and ageing resistance, corrosion damage caused by liquid erosion and prolonged corrosion life by matching the stainless steel layer, the graphite layer and the red copper layer.

Description

Corrosion-resistant screw gasket

Technical Field

The utility model relates to the technical field of screw gaskets, in particular to a corrosion-resistant screw gasket.

Background

Screw gaskets are mechanical seals between two objects, typically to prevent pressure, corrosion, and natural thermal expansion and contraction leakage of tubing between the two objects, and because the machined surfaces are not perfect, the gasket is typically made of sheet material, made of paper, rubber or copper, placed between the two planes to strengthen the seal, and a sealing element is provided between the static sealing surfaces to prevent fluid leakage. Corrosion resistant screw gaskets are indispensable in the field of mechanical seals.

The utility model patent of patent application publication number CN207364267U discloses a wear-resisting corrosion-resisting gasket, includes the gasket main part, the gasket main part includes gasket inlayer, wearing layer and corrosion-resisting layer, the wearing layer sets up respectively in gasket inlayer both ends, the corrosion-resisting layer sets up in gasket inlayer outer lane, the wearing layer includes wear pad and connecting block, connecting block one end is in the same place with the wear pad connection, connecting block bottom and gasket inlayer link together, the wear pad includes sealing layer and nickel-based alloy layer, the nickel-based alloy layer comprises a plurality of nickel-based alloy piece, nickel-based alloy piece surface is provided with the perforation, the sealing layer passes through the perforation and fills between the nickel-based alloy piece, the degree of depth of sealing layer is greater than the degree of depth of nickel-based alloy piece, the wearing layer includes protruding ring and lower protruding ring, and the device whole has good corrosion resistance and wear resistance, and difficult corrosion and wearing and tear, life are prolonged greatly, and is with low costs, is worth promoting.

However, the device still has some defects when in actual use, and obviously, in the use process, the bolt and the screw gasket are in contact extrusion for a long time, so that the strength is reduced, the sealing performance of the gasket is poor, external impurities such as dust, moisture and the like invade into the screw inside the screw gasket, the sealing performance is low, the corrosion resistance and the wear resistance are simple in structure, the good wear resistance and the good corrosion resistance are not provided, the later friction is easy to be worn and corroded, and the service life is reduced.

Therefore, it is necessary to invent a corrosion resistant screw washer to solve the above problems.

Disclosure of Invention

The utility model aims to provide a corrosion-resistant screw gasket which has the advantages of good corrosion resistance and wear resistance, difficult corrosion and wear, improved strength and prolonged service life, and solves the problems that the strength is reduced, the tightness of the gasket is poor, later friction is easy to be worn and corroded, and the service life is reduced due to long-time contact extrusion of a bolt and the screw gasket.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a corrosion-resistant screw gasket, includes corrosion-resistant layer, the inner wall fixedly connected with polytetrafluoroethylene layer on corrosion-resistant layer, the inner wall fixedly connected with ceramic fiber layer on polytetrafluoroethylene layer, the inner wall fixedly connected with high strength layer on ceramic fiber layer, the inner wall fixedly connected with wear-resisting anti-skidding layer on high strength layer, corrosion-resistant layer includes the stainless steel layer, the inner wall fixedly connected with graphite layer on stainless steel layer, the inner wall fixedly connected with red copper layer on graphite layer, the high strength layer includes the nylon layer, the inner wall fixedly connected with mica layer on nylon layer, wear-resisting anti-skidding layer includes the nitrile rubber layer, the inner wall fixedly connected with glass fiber layer on nitrile rubber layer, the inner wall fixedly connected with chloroprene rubber packing ring layer on glass fiber layer.

Preferably, the stainless steel layer is made of stainless steel, the graphite layer is made of graphite, and the red copper layer is made of red copper.

Preferably, the nylon layer is made of nylon, and the mica layer is made of mica.

Preferably, the material of the nitrile rubber layer is nitrile rubber, the material of the glass fiber layer is glass fiber, and the material of the chloroprene rubber gasket layer is chloroprene rubber.

Preferably, the inner wall of the red copper layer is fixedly connected with the surface of the polytetrafluoroethylene layer, and the inner wall of the ceramic fiber layer is fixedly connected with the surface of the nylon layer.

Compared with the prior art, the utility model has the following beneficial effects:

1. the gasket has the advantages of waterproof, oil-resistant, dustproof, sealing, heat insulation and ageing resistance, corrosion damage caused by liquid erosion and prolonged corrosion life by matching the stainless steel layer, the graphite layer and the red copper layer.

2. The nylon-mica composite gasket has the advantages of high temperature resistance, insulation, heat insulation, oil resistance, corrosion resistance, elasticity, incombustibility and high mechanical strength through the cooperation of the nylon layer and the mica layer, the gasket cannot generate electricity and combustion due to friction in the use process, the heat insulation can be carried out on the external environment, and the tightness is improved through the improvement of the strength.

3. The gasket has the advantages of abrasion resistance, low friction and creep resistance through the matching of the nitrile rubber layer, the glass fiber layer and the chloroprene rubber gasket layer, so that the gasket cannot be abraded and deformed due to internal friction.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of a stainless steel layer and a graphite layer of the present utility model;

FIG. 3 is a schematic cross-sectional view of a nylon layer and mica layer of the present utility model;

FIG. 4 is a schematic cross-sectional view of a nitrile rubber layer and a fiberglass layer of the present utility model.

In the figure: 1 corrosion-resistant layer, 2 polytetrafluoroethylene layer, 3 ceramic fiber layer, 4 high strength layer, 5 wear-resistant anti-slip layer, 6 stainless steel layer, 7 graphite layer, 8 red copper layer, 9 nylon layer, 10 mica layer, 11 nitrile rubber layer, 12 glass fiber layer, 13 chloroprene rubber gasket layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a corrosion-resistant screw gasket, including corrosion-resistant layer 1, corrosion-resistant layer 1's inner wall fixedly connected with polytetrafluoroethylene layer 2, polytetrafluoroethylene layer 2's inner wall fixedly connected with ceramic fiber layer 3, ceramic fiber layer 3's inner wall fixedly connected with high strength layer 4, high strength layer 4's inner wall fixedly connected with wear-resisting anti-skidding layer 5, corrosion-resistant layer 1 includes stainless steel layer 6, stainless steel layer 6's inner wall fixedly connected with graphite layer 7, graphite layer 7's inner wall fixedly connected with red copper layer 8, high strength layer 4 includes nylon layer 9, nylon layer 9's inner wall fixedly connected with mica layer 10, wear-resisting anti-skidding layer 5 includes nitrile rubber layer 11, nitrile rubber layer 11's inner wall fixedly connected with glass fiber layer 12, glass fiber layer 12's inner wall fixedly connected with neoprene gasket layer 13, through setting up polytetrafluoroethylene layer 2, make the gasket have waterproof oil-resistant, dustproof sealing and thermal insulation, thermal insulation and ageing resistance through setting up ceramic fiber layer 3, make the gasket have thermal insulation, sealing, electric insulation, sound insulation and filtration performance under the high temperature environment, electric insulation, sound absorption and filtration performance, make the gasket have good performance through setting up corrosion-resistant layer, corrosion-resistant layer 10, make the gasket have high temperature resistance, corrosion-resistant performance through setting up corrosion-resistant layer, corrosion-resistant layer has high temperature resistance, corrosion-resistant layer is good, corrosion-resistant gasket has high resistance, corrosion-resistant performance is set up, corrosion-resistant gasket has high performance, high resistance and high resistance, corrosion-resistant gasket is set up through setting up, corrosion-resistant gasket is excellent through setting up, corrosion-resistant gasket has high performance, and high through setting up 10, corrosion-resistant gasket, high resistance layer has high resistance, and high through setting up through corrosion-resistant gasket layer, and through corrosion-resistant layer is provided with high through layer, the performances of oil resistance, high temperature resistance, low friction, creep resistance and the like of the gasket are increased by arranging the glass fiber layer 12, and the gasket has the performances of water resistance, oil resistance, dust sealing, heat insulation and ageing resistance by arranging the chloroprene rubber gasket layer 13, so that external impurities such as dust, moisture and the like are prevented from invading the surface of the zero part inside the gasket.

The stainless steel layer 6 is made of stainless steel, the graphite layer 7 is made of graphite, and the red copper layer 8 is made of red copper.

The nylon layer 9 is made of nylon, and the mica layer 10 is made of mica.

The material of the nitrile rubber layer 11 is nitrile rubber, the material of the glass fiber layer 12 is glass fiber, and the material of the chloroprene rubber gasket layer 13 is chloroprene rubber.

The inner wall of the red copper layer 8 is fixedly connected with the surface of the polytetrafluoroethylene layer 2, and the inner wall of the ceramic fiber layer 3 is fixedly connected with the surface of the nylon layer 9.

When the gasket is used, the gasket has high-pressure, high-temperature and corrosion-resistant properties through the graphite layer 7, has compression resistance, toughness, good corrosion resistance and wear resistance through the red copper layer 8, has excellent insulating properties, high-temperature resistance, high strength and corrosion resistance through the nylon layer 9, has high-temperature resistance, insulation, heat insulation, oil resistance, corrosion resistance, elasticity, incombustibility and mechanical strength through the mica layer 10, has wear resistance, oil resistance, high-low temperature resistance through the nitrile rubber layer 11, and has abrasion resistance, low friction, creep resistance and the like through the glass fiber layer 12.

To sum up: this corrosion-resistant screw gasket, through corrosion-resistant layer 1, polytetrafluoroethylene layer 2, ceramic fiber layer 3, high strength layer 4 and wear-resisting skid resistant course 5's cooperation, solved bolt and screw gasket long-time contact extrusion for intensity reduces, and the leakproofness of gasket is poor, causes later stage friction very easily by wearing and tearing and corruption, has reduced life's problem.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a corrosion-resistant screw gasket, includes corrosion-resistant layer (1), its characterized in that: the inner wall fixedly connected with polytetrafluoroethylene layer (2) of corrosion-resistant layer (1), the inner wall fixedly connected with ceramic fiber layer (3) of polytetrafluoroethylene layer (2), the inner wall fixedly connected with high strength layer (4) of ceramic fiber layer (3), the inner wall fixedly connected with wear-resisting anti-skidding layer (5) of high strength layer (4), corrosion-resistant layer (1) includes stainless steel layer (6), the inner wall fixedly connected with graphite layer (7) of stainless steel layer (6), the inner wall fixedly connected with red copper layer (8) of graphite layer (7), high strength layer (4) include nylon layer (9), the inner wall fixedly connected with mica layer (10) of nylon layer (9), wear-resisting anti-skidding layer (5) are including nitrile rubber layer (11), the inner wall fixedly connected with glass fiber layer (12) of nitrile rubber layer (11), the inner wall fixedly connected with chloroprene rubber gasket layer (13) of glass fiber layer (12).

2. A corrosion resistant screw washer according to claim 1 and wherein: the stainless steel layer (6) is made of stainless steel, the graphite layer (7) is made of graphite, and the red copper layer (8) is made of red copper.

3. A corrosion resistant screw washer according to claim 1 and wherein: the nylon layer (9) is made of nylon, and the mica layer (10) is made of mica.

4. A corrosion resistant screw washer according to claim 1 and wherein: the material of the nitrile rubber layer (11) is nitrile rubber, the material of the glass fiber layer (12) is glass fiber, and the material of the chloroprene rubber gasket layer (13) is chloroprene rubber.

5. A corrosion resistant screw washer according to claim 1 and wherein: the inner wall of the red copper layer (8) is fixedly connected with the surface of the polytetrafluoroethylene layer (2), and the inner wall of the ceramic fiber layer (3) is fixedly connected with the surface of the nylon layer (9).