CN103277516A - Exhaust pipe seal gasket - Google Patents
Exhaust pipe seal gasket Download PDFInfo
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- CN103277516A CN103277516A CN2013102202997A CN201310220299A CN103277516A CN 103277516 A CN103277516 A CN 103277516A CN 2013102202997 A CN2013102202997 A CN 2013102202997A CN 201310220299 A CN201310220299 A CN 201310220299A CN 103277516 A CN103277516 A CN 103277516A
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- graphite layer
- stainless steel
- outlet pipe
- sealing gasket
- face
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Abstract
The invention provides an exhaust pipe seal gasket comprising a core piece and graphite layers arranged on two end faces of the core piece. At least one end face of the top faces and the bottom faces of the graphite layers is provided with a protection layer. Since in the exhaust pipe seal gasket, at least one end face of the graphite layers is sealed inside by the protection layer, the protection layer can protect the end face, and the graphite layers are prevented from dropping out at the position of the end face; and thus, dropping out of the graphite layers is reduced during the using process of the exhaust pipe seal gasket, and sealing performance is guaranteed. The exhaust pipe seal gasket further comprises a first covered edge wrapping on an inner ring of the graphite layers and a second covered edge wrapping on an outer ring of the graphite layers, the first covered edge and the second covered edge can prevent the inner ring of the graphite layers and the outer ring of the graphite layers from dropping out, and the sealing performance of the seal gasket is further guaranteed.
Description
Technical field
The present invention relates to the Sealing technical field, more particularly, relate to a kind of outlet pipe sealing gasket.
Background technique
Be subjected to the restriction of duct length, outlet pipe generally is connected to form by many pipelines, seals by sealing gasket between two continuous pipelines, to avoid the leakage of the medium in the outlet pipe.
At present, sealing gasket is generally done skeleton by chip, and the both ends of the surface composite graphite layer of chip is formed.But, when above-mentioned sealing gasket being applied in high temperature occasion such as outlet pipe afterbody, being subjected to temperatures involved after service time is long, the edge of graphite layer comes off easily, has influenced sealing.
In sum, how providing a kind of outlet pipe sealing gasket, with coming off of graphite layer in the minimizing using process, guarantee sealing, is 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 outlet pipe sealing gasket, graphite layer comes off the assurance sealing in the minimizing using process.
In order to achieve the above object, the invention provides following technological scheme:
A kind of outlet pipe sealing gasket comprises chip and the graphite layer that is compounded in described chip both ends of the surface, and at least one end face of the end face of described graphite layer and bottom surface is provided with protective layer.
Preferably, in the above-mentioned outlet pipe sealing gasket, be provided with described protective layer on the end face of described graphite layer and the bottom surface.
Preferably, in the above-mentioned outlet pipe sealing gasket, the protective layer on the described graphite layer end face is first stainless steel lining, and the protective layer on the bottom surface is second stainless steel lining.
Preferably, above-mentioned outlet pipe sealing is paid somebody's debt and expected repayment later and is comprised first bound edge that is wrapped in described graphite layer inner ring.
Preferably, above-mentioned outlet pipe sealing is paid somebody's debt and expected repayment later and is comprised second bound edge that is wrapped in described graphite layer outer ring.
Preferably, in the above-mentioned outlet pipe sealing gasket, described first bound edge and described second bound edge are the stainless steel bound edge.
Preferably, in the above-mentioned outlet pipe sealing gasket, an end of described first bound edge is overlapped on the inner ring edge of described first stainless steel lining, and the other end is overlapped on the inner ring edge of described second stainless steel lining.
Preferably, in the above-mentioned outlet pipe sealing gasket, an end of described second bound edge is overlapped on the edge, outer ring of described first stainless steel lining, and the other end is overlapped on the edge, outer ring of described second stainless steel lining.
Preferably, in the above-mentioned outlet pipe sealing gasket, described first stainless steel lining and described second stainless steel lining all are compounded on the described graphite layer by the mode of compacting.
From above-mentioned technological scheme as can be seen, outlet pipe sealing gasket provided by the invention comprises chip and is compounded in the graphite layer of chip both ends of the surface that at least one end face of the end face of this graphite layer and bottom surface is provided with protective layer.Because in the above-mentioned outlet pipe sealing gasket, at least one end face protected seam of graphite layer is enclosed in inside, protective layer can form protective action to this end face, has stoped graphite layer coming off that this end takes place; So outlet pipe provided by the invention sealing has reduced coming off of graphite layer in the using process, has guaranteed sealing.
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 outlet pipe 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 outlet pipe sealing gasket, reduced coming off of graphite layer in the using process, guaranteed sealing.
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 outlet pipe sealing gasket that the embodiment of the invention provides comprises chip and is compounded in the graphite layer 1 of chip both ends of the surface that at least one end face of the end face of graphite layer 1 and bottom surface is provided with protective layer.
In the outlet pipe sealing gasket of present embodiment, because at least one end face protected seam of graphite layer 1 is enclosed in inside, protective layer can form protective action to this end face, has stoped graphite layer 1 coming off that this end takes place; So outlet pipe that the embodiment of the invention provides sealing has reduced coming off of graphite layer 1 in the using process, has guaranteed sealing.
When the end face of graphite layer 1 arranged protective layer, this protective layer was protected graphite layer 1 at the end face place of graphite layer 1, had reduced graphite layer 1 and had come off at the end face place; When the bottom surface of graphite layer 1 arranged protective layer, this protective layer was protected graphite layer 1 at the place, bottom surface of graphite layer 1, had reduced graphite layer 1 and had come off at the place, bottom surface.
The present invention can arrange protective layer by an end face in graphite layer 1, also can only in the bottom surface of graphite layer 1 protective layer be set, and present embodiment is preferred to be provided with protective layer in end face and the bottom surface of graphite layer 1 simultaneously.So; protective layer on the end face can be protected the graphite layer at end face place; protective layer on the bottom surface can be protected the graphite layer at place, bottom surface; present embodiment is enclosed in graphite layer between two protective layers; graphite layer 1 is played a very good protection, reduced coming off of two end graphite layer 1 generations simultaneously.
In order to guarantee the better protect effect, above-mentioned two protective layers further are stainless steel lining, and the protective layer on graphite layer 1 end face is first stainless steel lining 3, and the protective layer on the bottom surface is second stainless steel lining 2.The stainless steel lining any surface finish has higher plasticity, toughness and mechanical strength, the corrosion of acid-and base-resisting gas, solution and other media, and better performances is difficult for being damaged under hot environment, has improved the working life of sealing gasket.Above-mentioned two protective layers can also or can be protected graphite layer 1 and other material layers with certain intensity for other metal layers.
In order further to optimize above-mentioned technique effect, the outlet pipe sealing that above-described embodiment provides is paid somebody's debt and expected repayment later and is comprised first bound edge 4 that is wrapped in graphite layer 1 inner ring.First bound edge 4 is wrapped in the inner ring of graphite layer 1; protect exposing in the graphite layer 1 of the inner; because the inner ring of sealing gasket contacts with the medium of pipeline; above-mentioned first bound edge 4 can prevent coming off of inner ring graphite layer, has avoided the graphite that comes off to the pollution of medium when having guaranteed the sealing of sealing gasket.In the present embodiment, only at inner ring first bound edge 4 is set, has saved bound edge is carried out in the outer ring, simplified technology, be convenient to make.
In the outlet pipe sealing gasket that another embodiment provides, also comprise the second bound edge (not shown) that is wrapped in graphite layer 1 outer ring.Second bound edge is wrapped in the outer ring of graphite layer 1, protects exposing in the graphite layer 1 of outer end, can prevent coming off of outer ring graphite layer.So, by two protective layers end face and the bottom surface of graphite layer 1 are protected respectively, by two bound edges the Internal and external cycle of graphite layer 1 is protected, whole graphite layer 1 is wrapped up, farthest protect graphite layer 1, guaranteed sealing well.It will be appreciated by persons skilled in the art that this outlet pipe sealing gasket also can only arrange first bound edge 4 or second bound edge only is set.
Further, first bound edge 4 and second bound edge all are preferably the stainless steel bound edge.Stainless steel bound edge performance is higher, and intensity is higher, and protective value is good.Certainly, above-mentioned bound edge can also be made for the alloy bound edge or by other corrosion-resistant and high temperature high-pressure resistant materials, and present embodiment is not done concrete restriction to this.
As shown in Figure 2, an end of above-mentioned first bound edge 4 is overlapped on the inner ring edge of first stainless steel lining 3, and the other end is overlapped on the inner ring edge of second stainless steel lining 2.Set up respectively on first stainless steel lining 3 and second stainless steel lining 2 at the two ends of first bound edge 4, closely links to each other between first bound edge 4 and two stainless steel linings, does not have the slit, avoids graphite layer 1 to come off from the joint of first bound edge 4 and stainless steel lining.
Simultaneously, an end of second bound edge is overlapped on the edge, outer ring of first stainless steel lining 3, and the other end is overlapped on the edge, outer ring of second stainless steel lining 2.Closely link to each other between second bound edge and two stainless steel linings, do not have the slit, avoid graphite layer 1 to come off from the joint of second bound edge and stainless steel lining.
It will be appreciated by persons skilled in the art that in the above-mentioned sealing gasket, also can be with the inner ring overlapping edges of two stainless steel linings on first bound edge 4, the outer ring overlapping edges is on second bound edge; The inner ring edge of two stainless steel linings and the edge butt joint of first bound edge 4 are fit together, and the edge butt joint of edge, outer ring and second bound edge fits together; To reach the same seamless effect that links to each other between bound edge and the protective layer that makes, introduce no longer one by one at this.
For protective layer and graphite layer 1 are linked together preferably, first stainless steel lining 3 and second stainless steel lining 2 further all are compounded on the graphite layer 1 by the mode of compacting.So; first stainless steel lining 3 and second stainless steel lining 2 are pressed together on the graphite layer 1; stainless steel lining on end face and the bottom surface all is combined with each other with graphite layer 1; avoided stainless steel lining to break away from graphite layer 1; can make stainless steel lining bring into play the effect of the inner graphite layer 1 of protection all the time, guarantee the sealing of sealing gasket.
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 (9)
1. an outlet pipe sealing gasket comprises chip and the graphite layer (1) that is compounded in described chip both ends of the surface, it is characterized in that the end face of described graphite layer (1) and at least one end face of bottom surface are provided with protective layer.
2. outlet pipe sealing gasket according to claim 1 is characterized in that, is provided with described protective layer on the end face of described graphite layer (1) and the bottom surface.
3. outlet pipe sealing gasket according to claim 2 is characterized in that, the protective layer on described graphite layer (1) end face is first stainless steel lining (3), and the protective layer on the bottom surface is second stainless steel lining (2).
4. outlet pipe sealing gasket according to claim 3 is characterized in that, also comprises first bound edge (4) that is wrapped in described graphite layer (1) inner ring.
5. outlet pipe sealing gasket according to claim 4 is characterized in that, also comprises second bound edge that is wrapped in described graphite layer (1) outer ring.
6. outlet pipe sealing gasket according to claim 5 is characterized in that, described first bound edge (4) and described second bound edge are the stainless steel bound edge.
7. outlet pipe sealing gasket according to claim 4 is characterized in that, an end of described first bound edge (4) is overlapped on the inner ring edge of described first stainless steel lining (3), and the other end is overlapped on the inner ring edge of described second stainless steel lining (2).
8. outlet pipe sealing gasket according to claim 5 is characterized in that, an end of described second bound edge is overlapped on the edge, outer ring of described first stainless steel lining (3), and the other end is overlapped on the edge, outer ring of described second stainless steel lining (2).
9. outlet pipe sealing gasket according to claim 3 is characterized in that, described first stainless steel lining (3) and described second stainless steel lining (2) all are compounded on the described graphite layer (1) by the mode of compacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102202997A CN103277516A (en) | 2013-06-04 | 2013-06-04 | Exhaust pipe seal gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102202997A CN103277516A (en) | 2013-06-04 | 2013-06-04 | Exhaust pipe seal gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103277516A true CN103277516A (en) | 2013-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102202997A Pending CN103277516A (en) | 2013-06-04 | 2013-06-04 | Exhaust pipe seal gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103277516A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110613985A (en) * | 2019-11-05 | 2019-12-27 | 河南龙成煤高效技术应用有限公司 | High temperature filters filter core seal structure and filter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828097A (en) * | 2006-04-06 | 2006-09-06 | 马志刚 | Metal tube and ring rolled seal gasket and manufacturing method thereof |
| US20090302552A1 (en) * | 2006-12-22 | 2009-12-10 | Sgl Carbon Se | Sealing Material |
| CN102108914A (en) * | 2011-01-26 | 2011-06-29 | 重庆长安汽车股份有限公司 | Flat-face flange sealing gasket for automotive exhaust system |
| CN202228667U (en) * | 2011-07-12 | 2012-05-23 | 株洲博尔密封材料有限公司 | Metal and flexible graphite combined sealing gasket |
| CN203348540U (en) * | 2013-06-04 | 2013-12-18 | 慈溪博格曼密封材料有限公司 | Sealing gasket of exhaust pipe |
-
2013
- 2013-06-04 CN CN2013102202997A patent/CN103277516A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828097A (en) * | 2006-04-06 | 2006-09-06 | 马志刚 | Metal tube and ring rolled seal gasket and manufacturing method thereof |
| US20090302552A1 (en) * | 2006-12-22 | 2009-12-10 | Sgl Carbon Se | Sealing Material |
| CN102108914A (en) * | 2011-01-26 | 2011-06-29 | 重庆长安汽车股份有限公司 | Flat-face flange sealing gasket for automotive exhaust system |
| CN202228667U (en) * | 2011-07-12 | 2012-05-23 | 株洲博尔密封材料有限公司 | Metal and flexible graphite combined sealing gasket |
| CN203348540U (en) * | 2013-06-04 | 2013-12-18 | 慈溪博格曼密封材料有限公司 | Sealing gasket of exhaust pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110613985A (en) * | 2019-11-05 | 2019-12-27 | 河南龙成煤高效技术应用有限公司 | High temperature filters filter core seal structure and filter |
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Application publication date: 20130904 |