CN206112330U - Composite gasket bordures - Google Patents
Composite gasket bordures Download PDFInfo
- Publication number
- CN206112330U CN206112330U CN201620971101.8U CN201620971101U CN206112330U CN 206112330 U CN206112330 U CN 206112330U CN 201620971101 U CN201620971101 U CN 201620971101U CN 206112330 U CN206112330 U CN 206112330U
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- Prior art keywords
- graphite
- gasket
- pad
- bordures
- flexible graphite
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Abstract
The utility model relates to a composite gasket bordures, including the flexible graphite pad, its characterized in that: still including metal screen plate, the flexible graphite pad be provided with two -layer set up respectively metal screen plate's upper and lower both sides in order forming sandwich structure, this sandwich structure's inward flange and/or outward flange are provided with bordures, compare with prior art, the utility model has the advantages of show the anti erosion intensity who improves supplementary graphite gaskets through addding metal screen plate in the flexible graphite pad two -layer, the compound seal gasket's of this graphite vertical section appears for using metal screen plate as the central core, use the flexible graphite gasket to be outermost intermediate layer sandwich structure, strengthen cohesion and mechanical strength between the two -layer flexible graphite gasket from this, additionally, bordure and strengthened composite gasket bordures's intensity, the kickback that the gasket drops and bring because of the graphite accident has been prevented in installation or use, also can keep out simultaneously various corrosivity chemical fluid alkali, hydrochloric acid, strongly corrosion liquid's such as sulphuric acid erosion.
Description
Technical field
This utility model is related to a kind of pad, more particularly to a kind of bound edge Composition spacer.
Background technology
The combined connecting structure of flange-pad-bolt is a kind of widest pipe of the sector applications such as machinery, oil, chemical industry
Road connected mode.It accounts for highly important status as the primary element of pipeline connection in modern industry, and it both ensure that
Pipeline and the connection and sealing of pipeline, pipeline and equipment room, facilitate dismounting of the pipeline in construction, installation, maintenance again.Pad
Sealing be flange connection core, be the sealing property of reinforced gasket, soft graphite is set up generally between pad and connector
Auxiliary mat, such as commonly uses at present steel flanges sealing wound gasket, ripple odontolith ink composite pad and high tensile flexible graphite pads in production.Separately
Also soft graphite pad is generally adopted in external various valves as the auxiliary mat of valve bonnet seal pad.Due to the distinctive physics of graphite
Property, determines that graphite pads have the advantages that high temperature resistant, corrosion-resistant, easy extruding are slided and deformed, as the auxiliary graphite pads of sealing
It is widely used in the sealing of pressure pipeline and equipment.
Existing graphite Composition spacer, matter is soft yielding, and without inside and outside bound edge, voltage endurance capability is poor, is easily damaged and affects
Its performance.When Graphite pad goes wrong, tend to cause unpredictable production accident.For this purpose, such as a patent
Number for ZL201220632746.0 (notification number is CN202937997U) Chinese utility model patent《Improve bound edge flexible》Drape over one's shoulders
Revealed such a improve bound edge soft graphite Composition spacer, that includes shim body, it is characterised in that shim body it is interior
One layer of stainless steel belt edging layer is coated with outer peripheral edge, the bulk strength of pad can so greatly reinforced, especially muscle
The bonding strength of bar is greatly improved, and will not deform in transport and installation and damage, and voltage endurance capability can be doubled, no
The trimming phenomenon of pad can be caused, the safety of personnel and equipment is largely ensure that.But shim body is still to use graphite
Blended with a small amount of binding agent to be pressed into, its structure is more open, accordingly, it would be desirable to make further to existing graphite Composition spacer
Improvement.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of graphite linings not for above-mentioned state of the art
Easily it is washed the bound edge Composition spacer of loss.
This utility model solve the technical scheme that adopted of above-mentioned technical problem for：The bound edge Composition spacer, includes soft
Property graphite pads, it is characterised in that：Metal otter board is also included, the soft graphite pad is provided with two-layer and is separately positioned on the gold
To form sandwich, the inward flange and/or outward flange of the sandwich are provided with bound edge for the both sides up and down of category web plate.
Further, the metal otter board has multiple burrs, and the burr is to the soft graphite of upper and lower both sides
Pad extends, and it is 0.15～0.5mm that the burr extends into the depth of the soft graphite pad.Its depth can be in 0.15～0.5mm
Between select, can both direction grasp soft graphite pad, to improve the scour resistance of whole bound edge Composition spacer.
Preferably, the depth that the burr extends into the soft graphite pad is 0.3mm.
Compared with prior art, the utility model has the advantage of by setting up wire netting in the soft graphite pad of two-layer
Plate significantly improves the antiscour intensity of auxiliary Graphite pad, and the vertical section of the graphite composite sealing gasket is rendered as with metal otter board
Centered on layer, with flexible graphite gasket as outermost interlayer sandwich structure, thus strengthen two layers of flexible graphite pad between
Adhesion, while increase the mechanical strength of whole bound edge Composition spacer, in addition, in the inward flange or outer of interlayer sandwich structure
The bound edge that edge or outer edge are arranged enhances the intensity of bound edge Composition spacer, it is therefore prevented that pad is during installation or use
Because graphite surprisingly comes off the adverse consequencess brought, it is high to improve security reliability, while can also keep out various aggressive chemistry medicines
The erosion of the strongly corrosion liquids such as product fluid highly basic, hydrochloric acid, sulphuric acid.
Description of the drawings
Fig. 1 is the structural representation of this utility model embodiment.
Fig. 2 is the I magnified partial views in Fig. 1.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As depicted in figs. 1 and 2, this bound edge Composition spacer includes two layers of flexible graphite pad 1, and two layers of flexible graphite pad 1
Between be provided with the metal otter board 2 with multiple burrs 4 to form sandwich, the inward flange and outward flange of the sandwich is equal
It is provided with bound edge 3.The burr 4 of metal otter board 2 extends 0.3mm to the soft graphite pad 1 of both sides in the present embodiment, it is also possible to
Select between 0.15～0.5mm, the depth can be in both direction grasping soft graphite pad 1, to improve whole bound edge Composition spacer
Scour resistance.
Metal otter board 2 may be selected from following any one material：Tinplate, austenitic stainless steel 304 or austenitic stainless steel
316.The antiscour intensity of Graphite pad, the bag can be significantly improved by setting up metal otter board 2 in the soft graphite pad 1 in two-layer
The vertical section of the Composition spacer of side 3 is rendered as the layer centered on metal otter board 2, with soft graphite pad 1 as outermost interlayer Sanming City
Structure is controlled, thus strengthens the adhesion between two layers of flexible graphite pad 1, while the machinery for increasing whole bound edge Composition spacer is strong
Degree, using Flexible graphite pad as two outermost layers contact with face to be sealed when, powdered graphite can be given full play to (especially swollen
Swollen powdered graphite) excellent self lubricity for having itself and rebound performance, it is larger on the face to be sealed thus, it is possible to bear
The change of thermal stress/thrust.In general, when measuring with reference to standard GB/T/T3985-2008, the bound edge is combined
The compression ratio of pad up to more than 20%, rebound degree up to more than 55%, and directly by metal otter board 2, graphite pads and binding agent
Compressing after mixing, in the case where flexibility hardly changes, its antiscour intensity is significantly improved the Graphite pad,
Service life extends 5～30 times, makes the overall service life of gasket seal extend decades of times, effectively improves seal connector
Leakage prevention capability, in can be widely applied to the seal connector of various pressure pipelines, equipment.
In addition, the inward flange and outward flange of the interlayer sandwich structure are provided with bound edge 3, the material of bound edge 3 can be
SUS304 rustless steels or SUS316 rustless steels, it is therefore prevented that bound edge Composition spacer is during installation or use because graphite surprisingly comes off
The adverse consequencess brought, improve security reliability height, while can also keep out various etching chemicals fluid highly basic, salt
The erosion of the strongly corrosion liquids such as acid, sulphuric acid.
Claims (3)
1. a kind of bound edge Composition spacer, includes soft graphite pad (1), it is characterised in that：Also include metal otter board (2), institute
State soft graphite pad (1) and be provided with two-layer and be separately positioned on the both sides up and down of the metal otter board (2) to form sandwich, should
The inward flange and/or outward flange of sandwich is provided with bound edge (3).
2. bound edge Composition spacer according to claim 1, it is characterised in that：The metal otter board (2) is with multiple burrs
(4), the burr (4) extends to the soft graphite pad (1) of upper and lower both sides, and the burr (4) extends into the flexibility
The depth of graphite pads (1) is 0.15～0.5mm.
3. bound edge Composition spacer according to claim 2, it is characterised in that：The burr (4) extends into the soft graphite
The depth of pad (1) is 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620971101.8U CN206112330U (en) | 2016-08-27 | 2016-08-27 | Composite gasket bordures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620971101.8U CN206112330U (en) | 2016-08-27 | 2016-08-27 | Composite gasket bordures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206112330U true CN206112330U (en) | 2017-04-19 |
Family
ID=58514211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620971101.8U Active CN206112330U (en) | 2016-08-27 | 2016-08-27 | Composite gasket bordures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206112330U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237889A (en) * | 2017-07-03 | 2017-10-10 | 湖北长江石化设备有限公司 | A kind of Novel edge fin Composition spacer |
| CN110791764A (en) * | 2018-08-02 | 2020-02-14 | 奇景光电股份有限公司 | Cleaning jig |
-
2016
- 2016-08-27 CN CN201620971101.8U patent/CN206112330U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237889A (en) * | 2017-07-03 | 2017-10-10 | 湖北长江石化设备有限公司 | A kind of Novel edge fin Composition spacer |
| CN110791764A (en) * | 2018-08-02 | 2020-02-14 | 奇景光电股份有限公司 | Cleaning jig |
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