CN206111810U - Graphite composite sealing gasket - Google Patents

Graphite composite sealing gasket Download PDF

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Publication number
CN206111810U
CN206111810U CN201620962957.9U CN201620962957U CN206111810U CN 206111810 U CN206111810 U CN 206111810U CN 201620962957 U CN201620962957 U CN 201620962957U CN 206111810 U CN206111810 U CN 206111810U
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CN
China
Prior art keywords
graphite
pad
flexible graphite
gasket
composite sealing
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Application number
CN201620962957.9U
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Chinese (zh)
Inventor
沈志刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CIXI BURGMANN SEALING MATERIALS Co Ltd
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CIXI BURGMANN SEALING MATERIALS Co Ltd
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Priority to CN201620962957.9U priority Critical patent/CN206111810U/en
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Abstract

The utility model relates to a graphite composite sealing gasket, including the flexible graphite pad, its characterized in that: the flexible graphite pad is provided with two -layerly, and is provided with metal screen plate between the two -layer flexible graphite pad, and this metal screen plate has a plurality of burrs, and the burr is all to both sides the flexible graphite pad extends, compares 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, this graphite composite sealing gasket's vertical section appears for using metal screen plate as the central core, use the flexible graphite gasket to be outermost sandwich structure, strengthen the cohesion between the two -layer flexible graphite gasket from this, increase whole graphite composite sealing gasket's mechanical strength simultaneously, make the tens of times holistic life of seal gasket extensions, effectively improve sealing connecting piece's the leakage ability of preventing, but wide application in various pipeline under pressure, among the sealing connecting piece of equipment.

Description

A kind of graphite composite sealing gasket
Technical field
This utility model is related to a kind of pad, more particularly to a kind of graphite composite sealing gasket.
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.
The auxiliary graphite pads for using at present are with graphite and a small amount of binding agent is blended is pressed into, and its structure is more open, Have the shortcomings that graphite linings are easily washed loss in use.Accordingly, it would be desirable to make further to existing graphite auxiliary mat 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 graphite composite sealing gasket of loss.
This utility model solve the technical scheme that adopted of above-mentioned technical problem for:The graphite composite sealing gasket, including Flexible graphite pads, it is characterised in that:The soft graphite pad is provided between two-layer, and two layers of flexible graphite pad and is provided with gold Category web plate, the metal otter board has multiple burrs, and the burr extends to the soft graphite pad of both sides.
Further, the depth that the burr extends into the soft graphite pad is 0.15~0.5mm.Its depth can be Select between 0.15~0.5mm, soft graphite pad can be grasped in both direction, to improve the antiscour of whole composite sealing pad Performance.
Preferably, the depth that the burr extends into the soft graphite pad is 0.3mm.
Further, the metal otter board may be selected from following any one material:Tinplate, austenitic stainless steel 304 or Austenitic stainless steel 316.
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 sandwich structure, thus strengthen two layers of flexible graphite pad between knot With joint efforts, while increasing the mechanical strength of whole graphite composite sealing gasket, the overall service life of gasket seal is made to extend tens of Times, the leakage prevention capability of seal connector is effectively improved, can be widely applied to the seal connector of various pressure pipelines, equipment In.
Description of the drawings
Fig. 1 is the structural representation of this utility model embodiment.
Specific embodiment
This utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in figure 1, this graphite composite sealing gasket includes two layers of flexible graphite pad 1, and two layers of flexible graphite pad 1 it Between be provided with the metal otter board 2 with multiple burrs 21, the burr 21 of the metal otter board 2 prolongs to the soft graphite pad 1 of both sides Stretch 0.3mm, it is also possible to select between 0.15~0.5mm, its depth can be in both direction grasping soft graphite pad 1, to improve The scour resistance of whole composite sealing pad.
Metal otter board 2 may be selected from following any one material:Tinplate, austenitic stainless steel 304 or austenitic stainless steel 316, by setting up the antiscour intensity that metal otter board 2 significantly improves auxiliary Graphite pad in the soft graphite pad 1 in two-layer, should The vertical section of graphite composite sealing gasket is rendered as the layer centered on metal otter board 2, with flexible graphite gasket 1 as outermost three Mingzhi's structure, thus strengthens the adhesion between two layers of flexible graphite pad 1, while increasing whole graphite composite sealing gasket Mechanical strength, using Flexible graphite pad as two outermost layers contact with face to be sealed when, powdered graphite can be given full play to (outstanding It is expanded graphite powder) excellent self lubricity for having itself and rebound performance, thus, it is possible to bear the face to be sealed Upper larger thermal stress/thrust change.In general, when measuring with reference to standard GB/T/T3985-2008, the stone The compression ratio of black composite sealing pad up to more than 20%, rebound degree up to more than 55%, and directly by metal otter board 2, graphite Pad and binding agent mixing after, it is compressing, the Graphite pad flexibility hardly change in the case of, its antiscour intensity Significantly improve, service life extends 5~30 times, make the overall service life of gasket seal extend decades of times, effectively improve close The leakage prevention capability of envelope connector, in can be widely applied to the seal connector of various pressure pipelines, equipment.

Claims (3)

1. a kind of graphite composite sealing gasket, includes soft graphite pad (1), it is characterised in that:The soft graphite pad (1) sets It is equipped between two-layer, and two layers of flexible graphite pad (1) and is provided with metal otter board (2), the metal otter board (2) is with multiple burrs (21), the burr (21) extends to the soft graphite pad (1) of both sides.
2. graphite composite sealing gasket according to claim 1, it is characterised in that:The burr (21) extends into the flexibility The depth of graphite pads (1) is 0.15~0.5mm.
3. graphite composite sealing gasket according to claim 2, it is characterised in that:The burr (21) extends into the flexibility The depth of graphite pads (1) is 0.3mm.
CN201620962957.9U 2016-08-27 2016-08-27 Graphite composite sealing gasket Active CN206111810U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620962957.9U CN206111810U (en) 2016-08-27 2016-08-27 Graphite composite sealing gasket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620962957.9U CN206111810U (en) 2016-08-27 2016-08-27 Graphite composite sealing gasket

Publications (1)

Publication Number Publication Date
CN206111810U true CN206111810U (en) 2017-04-19

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ID=58514176

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620962957.9U Active CN206111810U (en) 2016-08-27 2016-08-27 Graphite composite sealing gasket

Country Status (1)

Country Link
CN (1) CN206111810U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108515742A (en) * 2018-03-13 2018-09-11 岱山县威尔密封件有限公司 A kind of silencer gasket seal and preparation method thereof
CN111720648A (en) * 2020-05-14 2020-09-29 江阴市节流装置厂有限公司 Plunger type pore plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108515742A (en) * 2018-03-13 2018-09-11 岱山县威尔密封件有限公司 A kind of silencer gasket seal and preparation method thereof
CN111720648A (en) * 2020-05-14 2020-09-29 江阴市节流装置厂有限公司 Plunger type pore plate

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