CN212080131U

CN212080131U - Thin metal polytetrafluoroethylene corrugated composite sealing plate

Info

Publication number: CN212080131U
Application number: CN202020612548.2U
Authority: CN
Inventors: 祝海峰; 祝亚利; 祝振鹏; 祝立夫; 乙大伟; 邢伟
Original assignee: Xianyang Dragon Sealing Compound Materials Co ltd
Current assignee: Xianyang Dragon Sealing Compound Materials Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-12-04
Anticipated expiration: 2030-04-22

Abstract

The polytetrafluoroethylene thin layers formed by uniform coating are arranged on the upper surface and the lower surface of the thin metal plate, and the polytetrafluoroethylene sealing material is coated on the thin metal plate, so that the creep property, the non-adhesiveness and the irregularity of the expansion coefficient of the polytetrafluoroethylene along with the temperature change are improved, the high-end sealing material with high surface pressure resistance, acid and alkali resistance, corrosion resistance and rusting is prepared, and the application range is wider; a plurality of sealing corrugations are uniformly manufactured on the composite sealing plate formed by combining the polytetrafluoroethylene thin layer and the thin metal plate, the surface sealing in the prior art is changed into line sealing, and the bearing pressure is higher.

Description

Thin metal polytetrafluoroethylene corrugated composite sealing plate

Technical Field

The utility model belongs to composite seal board art field, concretely relates to thin metal polytetrafluoroethylene ripple composite seal board.

Background

PTFE (polytetrafluoroethylene) composite materials are novel composite materials which are formed by blending, copolymerizing or combining two or more than two different properties or different phase substances containing PTFE and have better performance than the composite materials. The composite material has the advantages of excellent characteristics of PTFE, such as corrosion resistance, heat resistance, aging resistance, compression resistance, creep resistance, stable size and the like, and is commonly used for sealing a high-end flange surface. Patent No. CN204020117 discloses a metal-foamed polytetrafluoroethylene composite sealing plate, which is made by coating foamed polytetrafluoroethylene on the upper and lower end faces of a thin steel plate, and improves the creep property of polytetrafluoroethylene. There is therefore a need for improvements.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the utility model provides a thin metal polytetrafluoroethylene ripple composite seal board, the utility model discloses a coating polytetrafluoroethylene sealing material on the thin metal sheet to improve polytetrafluoroethylene's creep nature, inadhesion and along with its coefficient of expansion's of temperature change irregularity, make resistant high-end sealing material of high face pressure, acid and alkali-resistance, corrosion, rust, application range is wider; and moreover, the sealing corrugation is manufactured on the composite sealing plate, the surface sealing in the prior art is changed into line sealing, and the bearing pressure is larger.

The utility model adopts the technical proposal that: the thin metal polytetrafluoroethylene corrugated composite sealing plate comprises a thin metal plate, wherein polytetrafluoroethylene thin layers formed by uniform coating are arranged on the upper surface and the lower surface of the thin metal plate, and a plurality of sealing corrugations are uniformly manufactured on the composite sealing plate formed by combining the polytetrafluoroethylene thin layers and the thin metal plate.

In a further limitation of the above technical solution, the thin metal plate is made of SUS thin stainless steel plate, and the thickness of the thin metal plate is less than 0.3 mm.

Further limiting the technical scheme, the thickness of the polytetrafluoroethylene thin layer is less than 0.1 mm.

Further limiting the technical scheme, the thickness of the polytetrafluoroethylene thin layer is 0.05 mm.

The technical proposal is further limited, the sealing corrugation is provided with 3 mutually parallel strips, the width of the sealing corrugation is 2 plus or minus 0.5mm, and the height of the sealing corrugation is 0.3 plus or minus 0.05mm

The utility model has the advantages compared with the prior art:

1. according to the scheme, the thin polytetrafluoroethylene is coated on the thin metal plate, so that the creep property, the non-adhesiveness and the irregularity of the expansion coefficient of the polytetrafluoroethylene along with the temperature change are improved, and the thin polytetrafluoroethylene layer is thin, so that the creep relaxation rate is greatly reduced, and the cold flow property of the polytetrafluoroethylene is improved;

2. the scheme is processed to ensure that the polytetrafluoroethylene material can be well attached to the SUS thin stainless steel plate, and the corrosion and the rusting of the thin metal plate can be improved.

3. This scheme evenly makes many sealed ripples on the composite seal board that combines to form by polytetrafluoroethylene thin layer and thin metal sheet, becomes the line seal with prior art's face seal, and bearing pressure is bigger, has solved the sealed face structure use field of high pressure, makes the wider novel sealing material of application range.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic view of the structure of the part i in fig. 1 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one.. said element does not exclude the presence of other like elements in the process, method, article or apparatus that comprises the element.

Please refer to fig. 1-2 to detail the embodiment of the present invention:

example 1: the thin metal polytetrafluoroethylene corrugated composite sealing plate comprises a thin metal plate 1, wherein polytetrafluoroethylene thin layers 2 formed by uniform coating are arranged on the upper surface and the lower surface of the thin metal plate 1. Preferably, the thin metal plate 1 is made of an SUS thin steel plate, and the thickness of the thin metal plate 1 is less than 0.3mm, which is suitable for high-pressure surface sealing. In the prior art, the SPCC with the thickness of 0.15mm is adopted to manufacture the thin metal plate 1, so that the thin metal plate is used for low-pressure surface sealing but not used for high-pressure surface sealing. 0.05mm is selected for use to the thickness of polytetrafluoroethylene thin layer 2, compares in the foaming polytetrafluoroethylene layer of 0.5mm among the prior art, can be fine avoid producing the conquassation. The utility model discloses a with very thin polytetrafluoroethylene thin layer 2 coating on the steel sheet, improve polytetrafluoroethylene' S creep nature, non-adhesion and along with the irregularity of its coefficient of expansion of temperature variation, it is sealed to be fit for high face pressure position, makes the wider novel sealing material of application range, and the sealed pad after improving is used in high requirement fields such as car retarber, AMT, S gearbox, engine, uses and is able to reach the effect of this composite seal board at-70 ℃ to 250 ℃ in resistant high low temperature special application range, other sealed pad.

Example 2: a plurality of sealing corrugations 3 are uniformly formed on the composite sealing plate formed by combining the polytetrafluoroethylene thin layer 2 and the thin metal plate 1. Preferably, the sealing corrugation 3 is provided with 3 strips which are parallel to each other, and the width of the sealing corrugation 3 is 2 +/-0.5 mm and the height of the sealing corrugation 3 is 0.3 +/-0.05 mm. The surface sealing of the prior art is changed into line sealing by the structure, and multiple sealing lines are equivalently increased, so that the sealing pressure resistance is higher, the application field of a high-pressure sealing surface structure is solved, and the novel sealing material with wider application range is manufactured at present.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The thin metal polytetrafluoroethylene corrugated composite sealing plate is characterized in that: the composite sealing plate comprises a thin metal plate (1), wherein polytetrafluoroethylene thin layers (2) formed by uniform coating are arranged on the upper surface and the lower surface of the thin metal plate (1), and a plurality of sealing corrugations (3) are uniformly manufactured on a composite sealing plate formed by combining the polytetrafluoroethylene thin layers (2) and the thin metal plate (1).

2. The thin metal polytetrafluoroethylene corrugated composite gasket of claim 1, wherein: the thin metal plate (1) is made of an SUS thin stainless steel plate, and the thickness of the thin metal plate (1) is less than 0.3 mm.

3. The thin metal polytetrafluoroethylene corrugated composite gasket as set forth in claim 1 or 2, wherein: the thickness of the polytetrafluoroethylene thin layer (2) is less than 0.1 mm.

4. The thin metal polytetrafluoroethylene corrugated composite gasket as set forth in claim 3, wherein: the thickness of the polytetrafluoroethylene thin layer (2) is 0.05 mm.

5. The thin metal polytetrafluoroethylene corrugated composite gasket as set forth in claim 3, wherein: the sealing corrugation (3) is provided with 3 mutually parallel strips, the width of the sealing corrugation (3) is 2 +/-0.5 mm, and the height of the sealing corrugation is 0.3 +/-0.05 mm.