CN203230990U - Waveform metal pad - Google Patents
Waveform metal pad Download PDFInfo
- Publication number
- CN203230990U CN203230990U CN 201320274348 CN201320274348U CN203230990U CN 203230990 U CN203230990 U CN 203230990U CN 201320274348 CN201320274348 CN 201320274348 CN 201320274348 U CN201320274348 U CN 201320274348U CN 203230990 U CN203230990 U CN 203230990U
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- waveform
- metal pad
- gasket
- layer
- metal ring
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Abstract
The utility model relates to a waveform metal pad comprising a metal ring with ripples on an upper surface and a lower surface; the waveform metal pad is characterized in that flexible cladding layers are arranged on the upper surface and the lower surface of the metal ring; and in addition, seal layers are arranged outside the flexible cladding layers and on the inner side surface of the metal ring. In the waveform metal pad, the peak and trough of the waveform are uniformly staggered in a concentric circle and distributed at intervals; and the waveform metal pad comprises at least one complete waveform. According to the waveform metal pad, not only is the outstanding performance of the prior art in the strength of a gasket, thermal conductivity, high temperature resistance, the solving of large size problem and the like maintained, but also the following improvement is made: the strength and resilience of the gasket are greatly improved; a good sealing effect can be displayed even on a flange with not so level a surface; and meanwhile the cladding layers have the characteristics of high and low temperature resistance, corrosion resistance, aging resistance, insulation and the like, the requirements on environmental conditions are low, and the service life of the gasket is prolonged.
Description
Technical field
The utility model relates to a kind of pad, is specifically related to a kind of corrugated metal felt.
Background technique
Pad as seal arrangement in modern industry in occupation of critical role, the seal failure meeting has a strong impact on the continuity of production, the quality of sealing also is directly connected to the safety of production, so gasket seal more and more is subject to people's attention in the process that application area constantly enlarges.Along with modernization industry, the rise of particularly petrochemical industry, atomic energy industry, large-scale power station, production environment develops to high temperature, high pressure, high vacuum, deep cooling and equipment enlarging direction, and this has just proposed new requirement to the sealing of pad.In the past, consider temperature, pressure, medium, use these parameters as the choice criteria of pad.At present, the quality of processing of flange, the inclination of flange, the defective of flange facing, medium are to the etch state of pad, fluctuation and the variation of temperature of pressure, all become the key factor that influences the gasket seal effect, so the design of gasket construction need take into full account various factors to the influence of gasket performance.
The metal corrugated gasket is a kind of metal ring that the flat ring of metal is processed into concentric wave-shaped ring by technologies such as mold pressing, roll extrusion or turning, nonmetallic material are also pasted on the surface of some metal corrugated gasket, it is proved to be in flange and exchanger assembly application, reliable and effective sealing can be provided, especially in large-sized cigarette, feed channel, low pressure, high temperature, effect is remarkable in the flange of perhaps distortion injustice, also can solve the difficult problem that nonmetallic gasket is difficult for installation and uses in the large scale occasion.
The metal corrugated gasket has outstanding mechanical strength and thermal conductivity, and is unrestricted to shim size, can solve the irregular problem of sealing surface.Be that the disclosed a kind of waveform of Chinese utility model patent of CN2883812Y (patent No. is ZL200620100201.X) is laminated with gasket seal as publication number, this pad comprises sealed support, i.e. waveform metal, and waveform metal top and bottom are laminated with nonmetal soft sealing layer.This waveform is laminated with intensity and the rebound elasticity that waveform metal in the gasket seal has guaranteed pad, and nonmetal soft sealing layer has guaranteed the pad good sealing property, the working life of prolongation pad that can be to a certain degree.But, according to the difference that nonmetal soft sealing layer material is selected, performances such as the high-low temperature resistant of pad, chemically-resistant, oil resistant can not guarantee fully, can only bring into play wherein a certain performance, thereby can not comprehensively safeguard the sealability of pad, can not improve the working life of pad significantly.
The model utility content
Technical problem to be solved in the utility model is to provide that a kind of ductility is good, intensity and rebound elasticity height, good airproof performance, have a corrugated metal felt of chemically-resistant, oil resistance simultaneously at above-mentioned prior art.
The utility model solves the problems of the technologies described above the technological scheme that adopts: a kind of corrugated metal felt, comprise that upper and lower surface has the metal ring of ripple, it is characterized in that: the upper and lower surface of metal ring is provided with flexibility and pastes layer, in addition, flexibility pastes layer inner side surface outer and metal ring and is provided with sealing layer.
Described flexibility pastes layer for graphite layer or ceramic fiber layer or does not have asbestos layer.
Described sealing layer is polyfluortetraethylene plate.
Compared with prior art, advantage of the present utility model is: adopt corrugated metal sheet, increased substantially intensity and the rebound elasticity of pad; Adopt flexibility to paste layer, strengthened the pad rebound elasticity, increased the ductility of pad, the flange not too smooth for the surface also has excellent sealing performance, and be of many uses; The sealing layer that arranges has high-low temperature resistant, corrosion-resistant, ageing-resistant, and characteristics such as insulation have comprehensively promoted the performance of pad, environmental conditions is required low, and the while has also increased the working life of pad.
Description of drawings
Fig. 1 is the plan view of the utility model embodiment Intermediate gasket.
Fig. 2 be among Fig. 1 A-A to sectional view.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Corrugated metal felt as depicted in figs. 1 and 2 comprises that the surface has the metal ring 3 of ripple, and the flexibility that is arranged at metal ring 3 upper and lower surfaces pastes layer 2, and flexibility pastes layer 2 inner side surface outer and metal ring and is provided with sealing layer 1.It is evenly staggered spaced apart that the crest of metal ring 3 waviness of the surface and trough are concentric circle, and the ripple on these metal ring 3 surfaces comprises an above complete waveform at least.
In the present embodiment, described metal ring 3 is the waveform corrosion resistant plate, according to elastoplasticity, heat resistance and the corrosion resistance of metallic material, choose other metallic material also can, this metal ring 3 comprises the concentric wave-shaped ring that 4 complete Wave crest and wave troughs evenly are interspersed.Described flexibility pastes layer 2 for graphite layer, also can adopt ceramic fiber, non-asbestos material.Described sealing layer 1 is the expanded ptfe plate, also can adopt pure polyfluortetraethylene plate or filled polytetrafluoroethylene plate.
High strength, the high resilience of corrugated metal sheet brought into play in the structure composition of the corrugated metal felt in the present embodiment, and characteristics such as the flexible ductility that pastes layer and sealing layer use nonmetallic material and high-low temperature resistant, chemically-resistant, oil resistant, increasing on the elastic basis, make this corrugated metal felt have excellent sealing, prolonged working life simultaneously.
Claims (3)
1. corrugated metal felt, comprise that upper and lower surface has the metal ring of ripple, is characterized in that: the upper and lower surface of metal ring is provided with flexibility and pastes layer, and in addition, flexibility pastes a layer inner side surface outer and metal ring and is provided with sealing layer.
2. corrugated metal felt according to claim 1 is characterized in that: described flexibility pastes layer for graphite layer or ceramic fiber layer or does not have asbestos layer.
3. corrugated metal felt according to claim 1, it is characterized in that: described sealing layer is polyfluortetraethylene plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274348 CN203230990U (en) | 2013-05-17 | 2013-05-17 | Waveform metal pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274348 CN203230990U (en) | 2013-05-17 | 2013-05-17 | Waveform metal pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230990U true CN203230990U (en) | 2013-10-09 |
Family
ID=49287116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320274348 Expired - Fee Related CN203230990U (en) | 2013-05-17 | 2013-05-17 | Waveform metal pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975641A (en) * | 2016-10-21 | 2018-05-01 | 中核苏阀科技实业股份有限公司 | Inflate metal bellows enhancing soft graphite pad |
-
2013
- 2013-05-17 CN CN 201320274348 patent/CN203230990U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975641A (en) * | 2016-10-21 | 2018-05-01 | 中核苏阀科技实业股份有限公司 | Inflate metal bellows enhancing soft graphite pad |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20190517 |