CN2171734Y - Soft graphite strong sealed board - Google Patents
Soft graphite strong sealed board Download PDFInfo
- Publication number
- CN2171734Y CN2171734Y CN 93242257 CN93242257U CN2171734Y CN 2171734 Y CN2171734 Y CN 2171734Y CN 93242257 CN93242257 CN 93242257 CN 93242257 U CN93242257 U CN 93242257U CN 2171734 Y CN2171734 Y CN 2171734Y
- Authority
- CN
- China
- Prior art keywords
- flexible graphite
- graphite
- strong
- soft graphite
- sealed board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Gasket Seals (AREA)
- Sealing Material Composition (AREA)
Abstract
The utility model discloses a soft graphite strong sealed board, comprising multi-layer flexible graphite boards and mesh fabric sandwich layers bedded alternately. The sandwich layers can be made up of non-metallic fiber fabrics or wire meshes; the non-metallic fiber fabrics can be made up of the silica fiber or the cotton fiber or the chemical fiber fabrics; the board-like structure in mesh is formed by rolling through gluing with the special glue which is mixed and stirred with the adhesive sold in the market. The soft graphite strong sealed board has the advantages of good resilience, wide ranges of temperature resistance, resistance of strong acid, strong alkali, petroleum products, steam, etc., non-ageing for a long time, good sealing performance, low leakage rate, innocuity, pollution-free and low manufacturing cost. The utility model can endure high-pressure and high vacuum, can be clipped as needed, can be used as static seal for various equipment, and is an ideal sealing material.
Description
The utility model relates to static seal device.
The seal arrangement that is used for the piping flange of industry equipments such as pressurized container, steel-making, chemical industry, electric power, oil refining, the modal asbestos slate that asbestos and so on are arranged, graphite spiral wound gasket, the high-strength pad of graphite or the like.Though asbestos slate is high temperature resistant, but because comprehensive mechanical performance is lower, metal there is corrosive action, and the strong media of chemical corrosivity such as self not anti-again strong acid, highly basic, oil product, permeability is big, and sealing is poor, is a kind of carcinogens to the mankind particularly, belong to and control product in the world, progressively be eliminated.The graphite spiral wound gasket is high temperature resistant equally, and chemical resistance is good, but the manufacture cost height is subjected to size restrictions, fragile flanged surface.The high-strength pad complex manufacturing technology of graphite must adopt special device and lathe cut, can not make the bigger sealing surface of breadth, and the cost height.
The purpose of this utility model just is to overcome the existing deficiency of above-mentioned Sealing product, and providing a kind of can reduce cost, and improves performance, enlarges the flexible graphite strengthened sealing plate of application area.
The purpose of this utility model realizes by following scheme, the reticulated interlayer that it is gone into by layer flexible graphite cake and alternate lining is formed platy structure, bonding with special adhesive, this special adhesive mixes according to a certain ratio at normal temperatures to stir with commercially available adhesive and is made into, and can mix with 60% PS-21 Bond supernatant liquid and 40% polytetrafluoroethylene liquid; Can also mix by 60% nonwovens Bond and 40% teflon supernatant liquid, make it have very strong viscosity.Make between layer and the layer by rolling technology then and form intermeshing platy structure.Described reticulated interlayer can be non-metal fibre interlacement or wire gaze.Described non-metallic fiber fabric can be the silica fibre fabric, also can be cotton fabric, can also be man-made fiber fabric, looks different working condition combination in any.
The utility model is compared with known technology has following advantage: 1. compression recovery performance is good; 2. temperature resistant range is wide, can be applicable to-150 ℃～500 ℃ working condition; 3. can anti-various strong acid, highly basic, oil product, steam, salt and various organic solvent, aging for a long time; 4. good airproof performance, leak-down rate can reach country-level standard (1.0 * 10
2Ml/s); 5. can bear high pressure vacuum, can control the density height of product, reach the requirement of hydrodynamic pressure according to the needs of hydrodynamic pressure size; 6. the Sealing breadth is wide, and length is long, and is easy to use, do not need special device and lathe cut, can need shear making by size; 7. nontoxic non-environmental-pollution; 8. product cost is low, than low 10 times of asbestos washer, than low 4 times of graphite spirotallic gasket, than low 3 times of the high-strength pad of graphite, than low 4 times of oil resistant asbestos slate, is a kind of desirable sealing material, is used for the static seal of equipment such as metallurgy, chemical industry, boats and ships, electric power.
Accompanying drawing 1 provides the utility model structural representation.
Press shown in the accompanying drawing 1, flexible graphite strengthened sealing plate is got the flexible graphite plate (1) of 20 meters of length, 1 meter of width, 0.2～0.5 millimeter of thickness, its Kohlenstoffgehalt 99.9%, chlorine content＜100PPM, Sulpher content＜2000PPM.Alternate lining is gone at least 3 layers of reticulated interlayer (2) between at least 4 layers of graphite cake (1), goes up coated at interlayer (2) and is mixed into the special high temperature-resistant into better softness, the adhesive that chemical resistance is good by 60% PS-21 Bond supernatant liquid and 40% teflon supernatant liquid.Layer and layer are bonding simultaneously and carry out roll extrusion, and drying promptly becomes intermeshing each other platy structure then.
The reticulated interlayer (2) that lining is gone into is decided on operating mode, the employing silica fibre high temperature resistant 300～500 ℃ as needs, the employing cotton fiber or the chemical fibre of middle temperature, not only high temperature resistant but also high voltage bearing as needs, adopt wire gaze, the breadth of silk screen is long 20 meters, wide 1 meter equally, mesh size 1～2(millimeter) * 1～2(millimeter).
According to user's needs, also can be made into more multi-layered time sealing plate.
Claims (4)
1, a kind of flexible graphite strengthened sealing plate that is used for the equipment static seal, comprise layer flexible graphite cake (1), it is characterized in that lining is gone into the bonding reticulated interlayer (2) of special adhesive between graphite cake (1), form intermeshing platy structure through roll extrusion.
2, flexible graphite strengthened sealing plate as claimed in claim 1 is characterized in that described reticulated interlayer (2) is non-metallic fiber fabric or wire gaze.
3, flexible graphite strengthened sealing plate as claimed in claim 1 is characterized in that described non-metallic fiber fabric can be the silica fibre fabric, also can be cotton fabric, can also be man-made fiber fabric.
4,, it is characterized in that described special adhesive can be mixed by 60% PS-21 Bond supernatant liquid and 40% teflon supernatant liquid as claim 1 or 2 or 3 described flexible graphite strengthened sealing plates; Can also mix by 60% nonwovens Bond and 40% teflon supernatant liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93242257 CN2171734Y (en) | 1993-10-16 | 1993-10-16 | Soft graphite strong sealed board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93242257 CN2171734Y (en) | 1993-10-16 | 1993-10-16 | Soft graphite strong sealed board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2171734Y true CN2171734Y (en) | 1994-07-13 |
Family
ID=33816007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93242257 Expired - Fee Related CN2171734Y (en) | 1993-10-16 | 1993-10-16 | Soft graphite strong sealed board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2171734Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185139A (en) * | 2011-12-31 | 2013-07-03 | 上海金由氟材料有限公司 | Double-surface sealing type teflon gasket |
| CN104390005A (en) * | 2014-11-19 | 2015-03-04 | 苏州北开生化设备有限公司 | Sealing ring for pharmaceutical equipment |
| CN104390006A (en) * | 2014-11-19 | 2015-03-04 | 苏州北开生化设备有限公司 | Sealing gasket of refrigeration apparatus |
| CN107076310A (en) * | 2014-11-25 | 2017-08-18 | 贝克休斯公司 | Functional classification product and manufacture method |
| US10300627B2 (en) | 2014-11-25 | 2019-05-28 | Baker Hughes, A Ge Company, Llc | Method of forming a flexible carbon composite self-lubricating seal |
| US11148950B2 (en) | 2014-11-13 | 2021-10-19 | Baker Hughes, A Ge Company, Llc | Reinforced composites, methods of manufacture, and articles therefrom |
-
1993
- 1993-10-16 CN CN 93242257 patent/CN2171734Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185139A (en) * | 2011-12-31 | 2013-07-03 | 上海金由氟材料有限公司 | Double-surface sealing type teflon gasket |
| US11148950B2 (en) | 2014-11-13 | 2021-10-19 | Baker Hughes, A Ge Company, Llc | Reinforced composites, methods of manufacture, and articles therefrom |
| CN104390005A (en) * | 2014-11-19 | 2015-03-04 | 苏州北开生化设备有限公司 | Sealing ring for pharmaceutical equipment |
| CN104390006A (en) * | 2014-11-19 | 2015-03-04 | 苏州北开生化设备有限公司 | Sealing gasket of refrigeration apparatus |
| CN104390006B (en) * | 2014-11-19 | 2016-08-31 | 苏州北开生化设备有限公司 | A kind of gasket seal of refrigeration plant |
| CN104390005B (en) * | 2014-11-19 | 2016-08-31 | 苏州北开生化设备有限公司 | A kind of sealing ring for pharmaceutical equipment |
| CN107076310A (en) * | 2014-11-25 | 2017-08-18 | 贝克休斯公司 | Functional classification product and manufacture method |
| US10300627B2 (en) | 2014-11-25 | 2019-05-28 | Baker Hughes, A Ge Company, Llc | Method of forming a flexible carbon composite self-lubricating seal |
| CN107076310B (en) * | 2014-11-25 | 2019-10-22 | 贝克休斯公司 | Functional classification product and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |