CN103256388A - Sealing gasket - Google Patents
Sealing gasket Download PDFInfo
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- CN103256388A CN103256388A CN2013102202728A CN201310220272A CN103256388A CN 103256388 A CN103256388 A CN 103256388A CN 2013102202728 A CN2013102202728 A CN 2013102202728A CN 201310220272 A CN201310220272 A CN 201310220272A CN 103256388 A CN103256388 A CN 103256388A
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Abstract
The invention provides a sealing gasket which comprises a chip, a first nonmetal layer composited on the top end face of the chip, and a second nonmetal layer composited on the bottom end face of the chip, wherein at least one out of the first nonmetal layer and the second nonmetal layer is a poly-tetrafluoroedthylene layer. Poly-tetrafluoroedthylene has excellent chemical stability, corrosion resistance, thermal resistance and solvent resistance, as well as higher mechanical strength, so that poly-tetrafluoroedthylene layer does not fall easily in a high-temperature and high-pressure environment. Due to the chemical stability of poly-tetrafluoroedthylene, poly-tetrafluoroedthylene does not influence the cleanness of a flowing material after falling. At least one out of the first nonmetal layer and the second nonmetal layer in the sealing gasket is the poly-tetrafluoroedthylene layer, the poly-tetrafluoroedthylene layer does not fall easily, and the falling probability of the sealing gasket is reduced, so that the influence on the cleanliness of a pipeline and equipment is reduced, and the cleanness of the flowing material is ensured.
Description
Technical field
The present invention relates to the sealed member technical field, more particularly, relate to a kind of sealing gasket.
Background technique
Sealing gasket is mainly used in the flange seal of pipeline, pipe valve and the various kinds of equipment of various media.
Sealing gasket is generally done skeleton by chip, in the both ends of the surface composite graphite layer formation of chip.But graphite exists the shortcoming that the porosity is big, mechanical strength is low, and graphite layer comes off easily under High Temperature High Pressure, influences the turbidity test of pipeline and equipment, particularly when being applied to occasions such as chemical industry, medicine, can influence the spatter property of fluent material.In addition, graphite easily comes off, and has influenced the working life of sealing gasket.
In sum, how to provide a kind of sealing gasket, with the influence of minimizing to the turbidity test of pipeline and equipment, and then the spatter property of raising fluent material, be the technical problem that present those skilled in the art need to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of sealing gasket, reduce the influence to the turbidity test of pipeline and equipment, guarantee the spatter property of fluent material.
In order to achieve the above object, the invention provides following technological scheme:
A kind of sealing gasket comprises chip, is compounded in first non-metallic layer and second non-metallic layer that is compounded on the described chip bottom end face on the end face of described chip top, and at least one of described first non-metallic layer and described second non-metallic layer is the politef layer.
Preferably, in the above-mentioned sealing gasket, described first non-metallic layer and described second non-metallic layer are the politef layer.
Preferably, in the above-mentioned sealing gasket, also be provided with a plurality of first projectioies that can be absorbed in described first non-metallic layer on the top end face of described chip.
Preferably, in the above-mentioned sealing gasket, also be provided with a plurality of second projectioies that can be absorbed in described second non-metallic layer on the bottom end face of described chip.
Preferably, in the above-mentioned sealing gasket, also be provided with a plurality of attachment holes that are laminated into for described politef on the described chip.
Preferably, in the above-mentioned sealing gasket, described first projection and described second projection be the flange for being gone out by punching all.
Preferably, in the above-mentioned sealing gasket, described chip is the metal tooth plate.
Preferably, described metal tooth plate is obtained by the two-way acanthopore of sheet metal.
From above-mentioned technological scheme as can be seen, sealing gasket provided by the invention comprises chip, first non-metallic layer and second non-metallic layer, first non-metallic layer is compounded on the end face of chip top, second non-metallic layer is compounded on the chip bottom end face, wherein, at least one of first non-metallic layer and second non-metallic layer is the politef layer.
Politef has excellent chemical stability, corrosion resistance, heat resistance and solvent resistance, its mechanical strength is higher, so, the politef layer is difficult for coming off under high temperature and high pressure environment, and because the chemical stability of politef, it comes off also can not influence the spatter property of fluent material afterwards.
Because first non-metallic layer in the sealing gasket provided by the invention and at least one of second non-metallic layer are the politef layer, the politef layer is difficult for coming off, and then reduced coming off of sealing gasket, so reduced the influence to the turbidity test of pipeline and equipment, guaranteed the spatter property of fluent material.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the plan view of the sealing gasket that provides of the embodiment of the invention;
Fig. 2 is the sectional view along A-A line among Fig. 1.
Embodiment
The embodiment of the invention provides a kind of sealing gasket, has reduced the influence to the turbidity test of pipeline and equipment, has guaranteed the spatter property of fluent material.
For the purpose, technological scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who obtains under the creative work prerequisite.
Please refer to accompanying drawing 1-2, the sealing gasket that the embodiment of the invention provides comprises chip 1, first non-metallic layer 2 and second non-metallic layer 3, first non-metallic layer 2 is compounded on the top end face of chip 1, second non-metallic layer 3 is compounded on the bottom end face of chip 1, wherein, at least one of first non-metallic layer 2 and second non-metallic layer 3 is the politef layer.
Politef has excellent chemical stability, corrosion resistance, heat resistance and solvent resistance, its mechanical strength is higher, so, the politef layer is difficult for coming off under high temperature and high pressure environment, and because the chemical stability of politef, it comes off also can not influence the spatter property of fluent material afterwards.
Because first non-metallic layer 2 in the sealing gasket that the embodiment of the invention provides and at least one of second non-metallic layer 3 are the politef layer, the politef layer is difficult for coming off, and then reduced coming off of sealing gasket, so above-mentioned sealing gasket has reduced the influence to the turbidity test of pipeline and equipment, guaranteed the spatter property of fluent material.
In addition, because the politef layer has stronger corrosion resistance and excellent chemical stability, then the sealing gasket of being made up of the politef layer can be applicable to that the pH value of answering chemical industry, pharmacy requires and the spatter property requirement.
When above-mentioned first non-metallic layer 2 was the politef layer, the top end face of sealing gasket can not come off, and spatter property and corrosion resistance are better; When above-mentioned second non-metallic layer 3 was the politef layer, the bottom end face of sealing gasket can not come off, and spatter property and corrosion resistance are better.Sealing gasket provided by the invention can only be set to the politef layer with first non-metallic layer 2, also can only first non-metallic layer 2 be set to the politef layer.Present embodiment preferably all is set to the politef layer with first non-metallic layer 2 and second non-metallic layer 3.At this moment, top end face and the bottom end face of sealing gasket all can not come off, and the spatter property of two end faces and corrosion resistance are all better, have farthest improved spatter property and the corrosion resistance of whole sealing gasket, have guaranteed sealing, have improved working life simultaneously.
Preferably, in the sealing gasket that above-described embodiment provides, also be provided with a plurality of first projectioies that can be absorbed in first non-metallic layer 2 on the top end face of chip 1.Chip 1 and non-metallic layer often are combined with each other by the mode of compacting, and the non-metallic layer of 1 pair of two end face of chip is played a supporting role.Compound tense, first non-metallic layer 2 is overlayed on the top end face of chip 1, with press machine a plurality of first projectioies on the chip 1 are pressed in first non-metallic layer 2 then, it is more fastening to utilize first projection that chip 1 is connected with first non-metallic layer 2, has improved the join strength between chip 1 and first non-metallic layer 2.
Further, also be provided with a plurality of second projectioies that can be absorbed in second non-metallic layer 3 on the bottom end face of chip 1.Compound tense, second non-metallic layer 3 is overlayed on the bottom end face of chip 1, with press machine a plurality of second projectioies on the chip 1 are pressed in second non-metallic layer 3 then, it is more fastening to utilize second projection that chip 1 is connected with second non-metallic layer 3, has improved the join strength between chip 1 and second non-metallic layer 3.
In order further to improve the join strength of chip 1 and two non-metallic layers, also be provided with a plurality of attachment holes that are laminated into for politef on the said chip 1.Because the plasticity of politef layer is better, in the process of pressing chip 1 and two non-metallic layers, part first non-metallic layer 2 and part second non-metallic layer 3 can be pressed in a plurality of attachment holes on the chip 1, and chip 1 and two non-metallic layers are merged better, connect more firm.
In the present embodiment, first projection and second projection all are preferably the flange of being gone out by punching.Because flange is thinner, is convenient to be pressed in the politef layer.Above-mentioned first projection is obtained to the top punching by the bottom of chip 1, and second projection is obtained to the bottom punching by the top of chip 1.Simultaneously, also produce a plurality of attachment holes on the chip 1 when obtaining first projection and second projection by punching, manufacturing process is simple.
Preferably, the chip in above-described embodiment 1 is the metal tooth plate.Connectivity and the supporting effect of metal tooth plate are better, can link together with non-metallic layer well, play good supporting effect simultaneously.The tooth of two end faces is respectively above-mentioned first projection and second projection on this metal tooth plate.
For the ease of the manufacturing of chip, above-mentioned metal tooth plate is obtained by the two-way acanthopore of sheet metal.By having obtained attachment hole in the tooth of two-way acanthopore on obtaining sheet metal, manufacturing process is simple, has improved manufacturing efficiency.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the present invention.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to these embodiments shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. sealing gasket, comprise chip (1), be compounded in first non-metallic layer (2) on the end face of described chip (1) top and be compounded in second non-metallic layer (3) on described chip (1) bottom end face, it is characterized in that at least one of described first non-metallic layer (2) and described second non-metallic layer (3) is the politef layer.
2. sealing gasket according to claim 1 is characterized in that, described first non-metallic layer (2) and described second non-metallic layer (3) are the politef layer.
3. sealing gasket according to claim 2 is characterized in that, also is provided with a plurality of first projectioies that can be absorbed in described first non-metallic layer (2) on the top end face of described chip (1).
4. sealing gasket according to claim 3 is characterized in that, also is provided with a plurality of second projectioies that can be absorbed in described second non-metallic layer (3) on the bottom end face of described chip (1).
5. sealing gasket according to claim 4 is characterized in that, also is provided with a plurality of attachment holes that are laminated into for described politef on the described chip (1).
6. sealing gasket according to claim 5 is characterized in that, described first projection and described second projection be the flange for being gone out by punching all.
7. sealing gasket according to claim 6 is characterized in that, described chip (1) is the metal tooth plate.
8. sealing gasket according to claim 5 is characterized in that, described metal tooth plate is obtained by the two-way acanthopore of sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310220272.8A CN103256388B (en) | 2013-06-04 | 2013-06-04 | A kind of gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310220272.8A CN103256388B (en) | 2013-06-04 | 2013-06-04 | A kind of gasket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103256388A true CN103256388A (en) | 2013-08-21 |
| CN103256388B CN103256388B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310220272.8A Expired - Fee Related CN103256388B (en) | 2013-06-04 | 2013-06-04 | A kind of gasket |
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| Country | Link |
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| CN (1) | CN103256388B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101602A (en) * | 1993-10-09 | 1995-04-19 | 李儒臣 | Super low sulfur graphite and metal composite reinforced gasket material and its making method |
| CN2851736Y (en) * | 2005-10-21 | 2006-12-27 | 中国石化集团巴陵石油化工有限责任公司 | Sealing pad |
| CN101842621A (en) * | 2007-11-05 | 2010-09-22 | 日本皮拉工业株式会社 | Pad |
| CN202914926U (en) * | 2012-09-29 | 2013-05-01 | 徐州支点机电设备有限公司 | Flange |
| CN203348788U (en) * | 2013-06-04 | 2013-12-18 | 慈溪博格曼密封材料有限公司 | Sealing gasket |
-
2013
- 2013-06-04 CN CN201310220272.8A patent/CN103256388B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101602A (en) * | 1993-10-09 | 1995-04-19 | 李儒臣 | Super low sulfur graphite and metal composite reinforced gasket material and its making method |
| CN2851736Y (en) * | 2005-10-21 | 2006-12-27 | 中国石化集团巴陵石油化工有限责任公司 | Sealing pad |
| CN101842621A (en) * | 2007-11-05 | 2010-09-22 | 日本皮拉工业株式会社 | Pad |
| CN202914926U (en) * | 2012-09-29 | 2013-05-01 | 徐州支点机电设备有限公司 | Flange |
| CN203348788U (en) * | 2013-06-04 | 2013-12-18 | 慈溪博格曼密封材料有限公司 | Sealing gasket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103256388B (en) | 2016-06-08 |
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Granted publication date: 20160608 Termination date: 20200604 |