CN103321773A - Catalyst gasket and processing method thereof - Google Patents
Catalyst gasket and processing method thereof Download PDFInfo
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- CN103321773A CN103321773A CN2013102593238A CN201310259323A CN103321773A CN 103321773 A CN103321773 A CN 103321773A CN 2013102593238 A CN2013102593238 A CN 2013102593238A CN 201310259323 A CN201310259323 A CN 201310259323A CN 103321773 A CN103321773 A CN 103321773A
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Abstract
The invention discloses a catalyst gasket and a processing method thereof. The catalyst gasket comprises an upper metal corrugated substrate, a lower metal corrugated metal substrate and an elastic combined plate. The upper metal corrugated substrate is provided with an upper corrugated seal bar projecting down. The lower metal corrugated substrate is provided with a lower corrugated seal bar projecting up. The upper corrugated seal bar is located above the lower corrugated seal bar and contacts with the lower corrugated seal bar. The elastic combined plate is located between the upper metal corrugated substrate and the lower metal corrugated substrate. The elastic combined plate is added between the upper metal corrugated substrate and the lower metal corrugated substrate; if a gap between the upper corrugated seal bar and the lower corrugated seal bar on two flange faces increases and fatigue is caused, the increased gap between the flange faces can be quickly filled under the resilient combined action so as to maintain tightness, thus gas leakage is reduced; a designed inclusion cap can protect the elastic combined plate.
Description
Technical field
The present invention relates to the sealing gasket field, be specifically related to a kind of catalyst converter sealing gasket and processing method thereof.
Background technique
Catalyst converter sealing gasket in the supercharged engine is usually used in being installed between pressurized machine and the catalyst converter, with to playing sealing between pressurized machine and the catalyst converter.Because the heat load of supercharged engine is large, boost pressure is large, if the catalyst converter sealing gasket can not bear this harsh operating mode and reduce sealability, not only can make supercharged engine lose the advantage that supercharging technology brings, and also can reduce engine performance.
As shown in Figure 1, 2, existing catalyst converter sealing gasket comprises ripple substrate 5, lower ripple substrate 6; Be provided with ripple sealed muscle 7 on upper ripple substrate 5, the lower ripple substrate 6; The ripple sealed muscle 7 of lower ripple substrate 6 and the ripple sealed muscle 7 of upper ripple substrate 5 are in opposite directions and be arranged symmetrically.In use, the catalyst converter sealing gasket is fastened between the flange of the flange of pressurized machine and catalyst converter and is pressed into full level state, at this moment, two ripple sealed muscles, 7 equal compressive deformations, because of the reaction of its distortion, make the corresponding formation in middle part and the both sides three seals line of two ripple sealed muscles 7, thereby play seal action, but because this ripple sealed muscle 7 is pressed into full level state for a long time, fatigue phenomenon appears easily.And in sealing gasket press seal process, the situation that gap between two flanged surfaces easily occurs increasing because of temperature variation or engine load, but because the sealing pad only adopts two ripple sealed muscles 7 to seal, if ripple sealed muscle 7 fatigue phenomenon occurs in the situation that the flanged surface gap increases, the sealing pad just is difficult to remedy the gap that increases between two flanged surfaces, thereby the Leakage Gas phenomenon occurs.
Summary of the invention
In order to overcome the deficiencies in the prior art, one of purpose of the present invention is to provide a kind of catalyst converter sealing gasket, by between upper wavy metal substrate and lower wavy metal substrate, having additional the elastic composite plate, if upper ripple sealed muscle and lower ripple sealed muscle fatigue phenomenon occurs in the situation that the flanged surface gap increases, the gap that can utilize the rebound effect of elastic composite plate to remedy to increase between two flanged surfaces to be keeping sealing, thereby reduces the Leakage Gas phenomenon.
Two of purpose of the present invention is to provide a kind of processing method of above-mentioned catalyst converter sealing gasket.
For achieving the above object one, the technical solution adopted in the present invention is as follows:
The catalyst converter sealing gasket comprises wavy metal substrate, lower wavy metal substrate, elastic composite plate; Form protruding upper ripple sealed muscle on the upper wavy metal substrate down, form the lower ripple sealed muscle of projection up on the lower wavy metal substrate; Described upper ripple sealed muscle is positioned at the top of lower ripple sealed muscle, and contacts with lower ripple sealed muscle; The elastic composite plate is between upper wavy metal substrate and lower wavy metal substrate.
Described elastic composite plate is without the asbestos composite sheet, and this compressibility without the asbestos composite sheet is 11%-29%, rebound degree 〉=20%.
This tensile strength without the asbestos composite sheet 〉=1 Mpa, heat resisting temperature are 1000 ° more than the C, and density is 0.4-0.8g/cm
3
It is that the heat-resistance stainless steel of 11%-18% is made that upper wavy metal substrate, lower wavy metal substrate all adopt nickel content.
The middle part of described lower wavy metal substrate, upper wavy metal substrate, elastic composite plate is equipped with through hole; Be provided with the inclusion lid that circumferentially extends along it on the hole wall of described lower wavy metal substrate, this inclusion lid comprises the transition part that is connected on the lower wavy metal substrate hole wall, and this transition part is located in the through hole of elastic composite plate and upper wavy metal substrate; This inclusion lid also comprises and is connected with transition part and is pressed in upper splenium on the upper wavy metal substrate roof; The upper surface of this elastic composite plate contacts with the lower surface of upper wavy metal substrate, and the lower surface of this elastic composite plate contacts with the upper surface of lower wavy metal substrate; The be placed in both sides of elastic composite plate of described transition part and lower ripple sealed muscle.
Upward wavy metal substrate, lower wavy metal substrate, elastic composite plate are the solid of rotation that the middle part is provided with through hole.
This catalyst converter sealing is paid somebody's debt and expected repayment later and is comprised that first connects ear, the second connection ear; It is one-body molded that the outer side and first of this upper wavy metal substrate is connected ear, is arranged with at least two the first mounting holes in the first connection ear; It is one-body molded that the outer side of lower wavy metal substrate and second is connected ear, is arranged with at least two the second mounting holes in this second connection ear, and the second all mounting holes is corresponding one by one with the first mounting hole respectively.
Upward the cross section of ripple sealed muscle is opening up circular arc, and the cross section of lower ripple sealed muscle is downward opening circular arc; The trough section of described upper ripple sealed muscle contacts with the crest section of lower ripple sealed muscle; Described upper ripple sealed muscle and lower ripple sealed muscle are arranged symmetrically.
For achieving the above object two, the technical solution adopted in the present invention is as follows:
The processing method of catalyst converter sealing gasket may further comprise the steps:
Step 1: stamp out upper wavy metal substrate, form protruding upper ripple sealed muscle on this on the wavy metal substrate down;
Step 2: stamp out lower wavy metal substrate, form the lower ripple sealed muscle of projection up on this time wavy metal substrate;
Step 3: stamp out the elastic composite plate;
Wherein, step 1, two, three in no particular order order is carried out, and after step 1, two, three is finished, carries out following steps;
Step 4: wavy metal substrate, lower wavy metal substrate, elastic composite plate in the combination; Wherein, described upper ripple sealed muscle is positioned at the top of lower ripple sealed muscle, and contacts with lower ripple sealed muscle; The elastic composite plate is between upper wavy metal substrate and lower wavy metal substrate.
The middle part of described lower wavy metal substrate, upper wavy metal substrate, elastic composite plate is equipped with through hole; In step 2, after the punching press out of lower ripple sealed muscle, stamp out again the vertical edge that extends up; And in step 4, first the elastic composite sleeve-board is contained in vertical edge outside and be positioned on the lower wavy metal substrate, and then it is outside and be positioned on the elastic composite plate that upper wavy metal substrate is sleeved on vertical edge, again vertical edge is processed to form the inclusion lid, the upper splenium of described inclusion lid is pressed on the roof of wavy metal substrate.
Compared to existing technology, beneficial effect of the present invention is:
Compare with existing sealing gasket that utilizes the ripple sealed muscle to seal, the present invention seals by the reaction force that the reaction force that utilizes upper ripple sealed muscle, lower ripple sealed muscle pressurized and produce and the compression of elastic composite plate produce, and can significantly improve the sealing effect of sealing gasket; If upper ripple sealed muscle and lower ripple sealed muscle fatigue phenomenon occurs in the situation that the flanged surface gap increases, can remedy rapidly increase gap between two flanged surfaces keeping sealing by the rebound effect that utilizes elastic composite, thereby reduce the Leakage Gas phenomenon; By adopting the design of inclusion lid, can reduce contacting of elastic composite plate and air-flow, thereby the minimizing air-flow is on the impact of the usability of elastic composite plate.
Description of drawings
Fig. 1 is the structural representation of existing catalyst converter sealing gasket;
Fig. 2 be Fig. 1 A-A to sectional view;
Fig. 3 is the structural representation of catalyst converter sealing gasket of the present invention;
Fig. 4 be Fig. 3 B-B to sectional view;
Fig. 5 is the schematic diagram that catalyst converter sealing gasket of the present invention is in pressured state;
Wherein, 11, upper wavy metal substrate; 12, upper ripple sealed muscle; 13, first connects ear; 14, the first mounting hole; 21, lower wavy metal substrate; 22, lower ripple sealed muscle; 23, inclusion lid; 231, upper splenium; 4, elastic composite plate; 5, upper ripple substrate; 6, lower ripple substrate; 7, ripple sealed muscle.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the present invention is described further, so that clearerly understand the present invention's technical thought required for protection.
Shown in Fig. 3,4,5, be a kind of catalyst converter sealing gasket of the present invention, comprise wavy metal substrate 11, lower wavy metal substrate 21, elastic composite plate 4; Form protruding upper ripple sealed muscle 12 on the upper wavy metal substrate 11 down, form the lower ripple sealed muscle 22 of projection up on the lower wavy metal substrate 21, described upper ripple sealed muscle 12 is positioned at the top of lower ripple sealed muscle 22, and contacts with lower ripple sealed muscle 22; Upward the cross section of ripple sealed muscle 12 is opening up circular arc, and the cross section of lower ripple sealed muscle 22 is downward opening circular arc; The trough section of described upper ripple sealed muscle 12 contacts with the crest section of lower ripple sealed muscle 22.Preferably, described upper ripple sealed muscle 12 is arranged symmetrically with lower ripple sealed muscle 22.Elastic composite plate 4 is between upper wavy metal substrate 11 and lower wavy metal substrate 21.Concrete, because cooperatively interacting between upper ripple sealed muscle 12 and the lower ripple sealed muscle 22 can make between wavy metal substrate 11 and the lower wavy metal substrate 21 and form interstitial area, this elastic composite plate 4 is positioned at this interstitial area.Preferably, the upper surface of this elastic composite plate 4 contacts with the lower surface of upper wavy metal substrate 11, and the lower surface of this elastic composite plate 4 contacts with the upper surface of lower wavy metal substrate 21; Described elastic composite plate 4 is positioned at the inboard of lower ripple sealed muscle 22.Wherein, described elastic composite plate 4 can adopt anyly on the market has a flexible composite sheet, such as flexible graphite gasket, without asbestos composite sheet etc.
Compare with existing sealing gasket that utilizes the ripple sealed muscle to seal, the present invention seals by the reaction force that the reaction force that utilizes upper ripple sealed muscle 12, lower ripple sealed muscle 22 pressurizeds and produce and 4 compressions of elastic composite plate produce, and can significantly improve the sealing effect of sealing gasket; If upper ripple sealed muscle 12 and lower ripple sealed muscle 22 fatigue phenomenon occurs in the situation that the flanged surface gap increases, can utilize the rebound effect of elastic composite plate 4 to remedy rapidly increase gap between two flanged surfaces keeping sealing, thereby reduce the Leakage Gas phenomenon; And, by structure and the mounting type of ripple sealed muscle 12 in the reasonable adjusting and lower ripple sealed muscle 22, can combine with elastic composite plate 4, and can give full play to the usability of each part.
Preferably, described elastic composite plate 4 is without the asbestos composite sheet.And in order further to improve compression performance and the resilience without the asbestos composite sheet, the inventor carries out following setting to two parameters commonly used of compressibility, rebound degree without the asbestos composite sheet: described compressibility without the asbestos composite sheet is 11%-29%, rebound degree 〉=20%.Preferably, be 15%-25% without the compressibility of asbestos composite sheet, can effectively increase the maximum compression distance without the asbestos composite sheet, making to possess without the asbestos composite sheet has preferably compressed capability, is beneficial to the formation of sealing; Rebound degree without the asbestos composite sheet is 30%-55%, can effectively increase the maximum snap-off-distance without the asbestos composite sheet, and making to possess without the asbestos composite sheet has good resilience, is beneficial to resilience and keeps sealing.In order to improve the performance without the asbestos composite sheet, the inventor also carries out following setting to the tensile strength without the asbestos composite sheet: this tensile strength without the asbestos composite sheet 〉=1 Mpa.Preferably, this tensile strength without the asbestos composite sheet is 5-15 Mpa so that without the asbestos composite sheet satisfying under stretch-proof, anti-fracture, the anti-pressure medium Capability Requirement condition, also can effectively control its fabricating cost.Wherein, this heat resisting temperature without the asbestos composite sheet can be set according to actual conditions.And preferred, this heat resisting temperature without the asbestos composite sheet is made as 1000 ° more than the C, can make this is the requirement of 1000 ° of operating modes below the C without asbestos composite sheet satisfied temperature, thereby enlarges its Applicable scope.Described density without the asbestos composite sheet is 0.4-0.8g/cm
3, ignition loss≤30%.
It is that the heat-resistance stainless steel of 11%-18% is made that upper wavy metal substrate 11, lower wavy metal substrate 21 all adopt nickel content, can improve the resistance to high temperature of upper wavy metal substrate 11, lower wavy metal substrate 21, make it satisfy the worst hot case requirement, thereby enlarge its Applicable scope.
The middle part of lower wavy metal substrate 21, upper wavy metal substrate 11, elastic composite plate 4 is equipped with through hole; Be provided with the inclusion lid 23 that circumferentially extends along it on the hole wall of described lower wavy metal substrate 21, this inclusion lid 23 comprises the transition part that is connected on lower wavy metal substrate 21 hole walls, and this transition part is located in the through hole of elastic composite plate 4 and upper wavy metal substrate 11; This inclusion lid 23 also comprises and is connected with transition part and is pressed in upper splenium 231 on upper wavy metal substrate 11 roofs; The upper surface of this elastic composite plate 4 contacts with the lower surface of upper wavy metal substrate 11, and the lower surface of this elastic composite plate 4 contacts with the upper surface of lower wavy metal substrate 21; The be placed in both sides of elastic composite plate 4 of described transition part and lower ripple sealed muscle 22.The transition part of described inclusion lid 23 is circular-arc.And by adopting the design of inclusion lid 23, upper wavy metal substrate 11 can be fitted on the lower wavy metal substrate 21, and elastic composite plate 4 is fitted between upper wavy metal substrate 11 and the lower wavy metal substrate 21, can improve stability, soundness that the three connects; In addition, in assembling process, need not to add auxiliary agent or scolder just can be realized three's connection, can reduce production costs, and can reach the environmental protection purpose; And in use, air-flow is along A to flowing, and by utilizing inclusion lid 23, can reduce contacting of elastic composite plate 4 and air-flow, thereby the minimizing air-flow is on the impact of the usability of elastic composite plate 4.
Preferably, wavy metal substrate 11, lower wavy metal substrate 21, elastic composite plate 4 are the solid of rotation that the middle part is provided with through hole on this.For the installation location that is convenient to sealing gasket and fixing, sealing is paid somebody's debt and expected repayment later and is comprised that first connects ear 13, second and connect ear; It is one-body molded that outer side and first that should upper wavy metal substrate 11 is connected ear 13, and this first outer contour formation that connects ear 13 is similar to leg-of-mutton shape, and is arranged with at least two the first mounting holes 14 in the first connection ear 13.And be complementary therewith, the outer side of lower wavy metal substrate 21 is connected ear with second one-body molded, and second connects ear is complementary with the first shape that is connected ear 13; Be arranged with at least two the second mounting holes in this second connection ear; The second all mounting holes is corresponding one by one with the first mounting hole 14 respectively.
Certainly, the sealing pad is except being applicable between pressurized machine and the catalyst converter, also can be diverted to other field and can be used for sealing other parts, the shape of upper wavy metal substrate 11, lower wavy metal substrate 21, elastic composite plate 4 is then set according to the shape of sealed part.
As shown in Figure 5, in use, sealing gasket is installed in by bolt between the flange of the flange of pressurized machine and catalyst converter, at this moment, and upper ripple sealed muscle 12 and lower ripple sealed muscle 22 compressive deformations, and the reaction force that its distortion produces can play seal action.And meanwhile, elastic composite plate 4 under the sandwiched effect of upper wavy metal substrate 11 and lower wavy metal substrate 21, be in compressive state and produce reaction force can be used for the sealing, with its sealing effect of further raising.
And in sealing gasket compression seal process, the situation that gap between two flanged surfaces easily occurs increasing because of temperature variation or engine load, if upper ripple sealed muscle 12 and lower ripple sealed muscle 22 fatigue phenomenon occurs in the situation that the flanged surface gap increases, this elastic composite plate 4 utilizes the rapid resilience of its resilience, and also upwards wavy metal substrate 11 and lower wavy metal substrate 21 apply active force, wavy metal substrate 11 and lower wavy metal substrate 21 are moved outwardly remedy rapidly the gap that increases between two flanged surfaces, flow out between two relative flanged surfaces to avoid air-flow.
The processing method of above-mentioned catalyst converter sealing gasket may further comprise the steps:
Step 1: stamp out upper wavy metal substrate 11, form protruding upper ripple sealed muscle 12 on this on the wavy metal substrate 11 down;
Step 2: stamp out lower wavy metal substrate 21, form the lower ripple sealed muscle 22 of projection up on this time wavy metal substrate 21;
Step 3: stamp out elastic composite plate 4;
Wherein, step 1, two, three in no particular order order is carried out, and after step 1, two, three is finished, carries out following steps;
Step 4: wavy metal substrate 11, lower wavy metal substrate 21, elastic composite plate 4 in the combination; Wherein, lower wavy metal substrate 21 is positioned at the below of wavy metal substrate 11, and described upper ripple sealed muscle 12 is positioned at the top of lower ripple sealed muscle 22, and contacts with lower ripple sealed muscle 22; Elastic composite plate 4 is between upper wavy metal substrate 11 and lower wavy metal substrate 21.
Preferably, the middle part of described lower wavy metal substrate 21, upper wavy metal substrate 11, elastic composite plate 4 is equipped with through hole; In step 2, after lower ripple sealed muscle 22 punching presses out, stamp out again the vertical edge that extends up; And in step 4, first elastic composite plate 4 is sleeved on vertical edge outside and be positioned on the lower wavy metal substrate 21, and then it is outside and be positioned on the elastic composite plate 4 that upper wavy metal substrate 11 is sleeved on vertical edge, again vertical edge is processed to form inclusion lid 23, the upper splenium 231 of described inclusion lid 23 is pressed on the roof of wavy metal substrate 11.
Above-mentioned mode of execution only is preferred implementation of the present invention; can not limit the scope of protection of the invention with this, the variation of any unsubstantiality that those skilled in the art does on basis of the present invention and replacement all belong to the present invention's scope required for protection.
Claims (10)
1. the catalyst converter sealing gasket is characterized in that: comprise wavy metal substrate, lower wavy metal substrate, elastic composite plate; Form protruding upper ripple sealed muscle on the upper wavy metal substrate down, form the lower ripple sealed muscle of projection up on the lower wavy metal substrate; Described upper ripple sealed muscle is positioned at the top of lower ripple sealed muscle, and contacts with lower ripple sealed muscle; The elastic composite plate is between upper wavy metal substrate and lower wavy metal substrate.
2. catalyst converter sealing gasket as claimed in claim 1 is characterized in that: described elastic composite plate is for without the asbestos composite sheet, and this compressibility without the asbestos composite sheet is 11%-29%, rebound degree 〉=20%.
3. catalyst converter sealing gasket as claimed in claim 2 is characterized in that: this tensile strength without the asbestos composite sheet 〉=1 Mpa, heat resisting temperature are 1000 ° more than the C, and density is 0.4-0.8g/cm
3
4. catalyst converter sealing gasket as claimed in claim 1 is characterized in that: it is that the heat-resistance stainless steel of 11%-18% is made that upper wavy metal substrate, lower wavy metal substrate all adopt nickel content.
5. catalyst converter sealing gasket as claimed in claim 1, it is characterized in that: the middle part of described lower wavy metal substrate, upper wavy metal substrate, elastic composite plate is equipped with through hole; Be provided with the inclusion lid that circumferentially extends along it on the hole wall of described lower wavy metal substrate, this inclusion lid comprises the transition part that is connected on the lower wavy metal substrate hole wall, and this transition part is located in the through hole of elastic composite plate and upper wavy metal substrate; This inclusion lid also comprises and is connected with transition part and is pressed in upper splenium on the upper wavy metal substrate roof; The upper surface of this elastic composite plate contacts with the lower surface of upper wavy metal substrate, and the lower surface of this elastic composite plate contacts with the upper surface of lower wavy metal substrate; The be placed in both sides of elastic composite plate of described transition part and lower ripple sealed muscle.
6. catalyst converter sealing gasket as claimed in claim 1 is characterized in that: the solid of rotation that is provided with through hole in the middle part of wavy metal substrate, lower wavy metal substrate, elastic composite plate are on this.
7. such as claim 1 or 6 described catalyst converter sealing gaskets, it is characterized in that: this catalyst converter sealing is paid somebody's debt and expected repayment later and is comprised that first connects ear, the second connection ear; It is one-body molded that the outer side and first of this upper wavy metal substrate is connected ear, is arranged with at least two the first mounting holes in the first connection ear; It is one-body molded that the outer side of lower wavy metal substrate and second is connected ear, is arranged with at least two the second mounting holes in this second connection ear, and the second all mounting holes is corresponding one by one with the first mounting hole respectively.
8. catalyst converter sealing gasket as claimed in claim 1, it is characterized in that: cross section of ripple sealed muscle is opening up circular arc on this, and the cross section of lower ripple sealed muscle is downward opening circular arc; The trough section of described upper ripple sealed muscle contacts with the crest section of lower ripple sealed muscle; Described upper ripple sealed muscle and lower ripple sealed muscle are arranged symmetrically.
9. the processing method of catalyst converter sealing gasket claimed in claim 1 is characterized in that: may further comprise the steps:
Step 1: stamp out upper wavy metal substrate, form protruding upper ripple sealed muscle on this on the wavy metal substrate down;
Step 2: stamp out lower wavy metal substrate, form the lower ripple sealed muscle of projection up on this time wavy metal substrate;
Step 3: stamp out the elastic composite plate;
Wherein, step 1, two, three in no particular order order is carried out, and after step 1, two, three is finished, carries out following steps;
Step 4: wavy metal substrate, lower wavy metal substrate, elastic composite plate in the combination; Wherein, described upper ripple sealed muscle is positioned at the top of lower ripple sealed muscle, and contacts with lower ripple sealed muscle; The elastic composite plate is between upper wavy metal substrate and lower wavy metal substrate.
10. the processing method of catalyst converter sealing gasket as claimed in claim 9, it is characterized in that: the middle part of described lower wavy metal substrate, upper wavy metal substrate, elastic composite plate is equipped with through hole; In step 2, after the punching press out of lower ripple sealed muscle, stamp out again the vertical edge that extends up; And in step 4, first the elastic composite sleeve-board is contained in vertical edge outside and be positioned on the lower wavy metal substrate, and then it is outside and be positioned on the elastic composite plate that upper wavy metal substrate is sleeved on vertical edge, again vertical edge is processed to form the inclusion lid, the upper splenium of described inclusion lid is pressed on the roof of wavy metal substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310259323.8A CN103321773B (en) | 2013-06-25 | 2013-06-25 | Catalyst gasket and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310259323.8A CN103321773B (en) | 2013-06-25 | 2013-06-25 | Catalyst gasket and processing method thereof |
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| CN103321773A true CN103321773A (en) | 2013-09-25 |
| CN103321773B CN103321773B (en) | 2016-11-23 |
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| CN201310259323.8A Active CN103321773B (en) | 2013-06-25 | 2013-06-25 | Catalyst gasket and processing method thereof |
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| US4756561A (en) * | 1985-02-14 | 1988-07-12 | Mazda Motor Corporation | Sealing gasket |
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| JP2009156395A (en) * | 2007-12-27 | 2009-07-16 | Ishikawa Gasket Co Ltd | Metallic gasket |
| CN102536506A (en) * | 2012-02-16 | 2012-07-04 | 重庆长安汽车股份有限公司 | Seal gasket for engine exhaust system |
| US20120306162A1 (en) * | 2010-02-08 | 2012-12-06 | Bartosz Gadomski | Metal seal having an insert that is not resistant to exhaust gas |
-
2013
- 2013-06-25 CN CN201310259323.8A patent/CN103321773B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4756561A (en) * | 1985-02-14 | 1988-07-12 | Mazda Motor Corporation | Sealing gasket |
| US5803462A (en) * | 1996-12-06 | 1998-09-08 | Dana Corporation | MLS gasket with yieldable combustion seal |
| CN101216105A (en) * | 2007-01-05 | 2008-07-09 | 石川密封垫板有限责任公司 | Metal gasket |
| CN101012784A (en) * | 2007-01-31 | 2007-08-08 | 长春蓝天密封技术开发有限公司 | Laser welding metal cylinder mat and manufacturing technique |
| JP2009156395A (en) * | 2007-12-27 | 2009-07-16 | Ishikawa Gasket Co Ltd | Metallic gasket |
| US20120306162A1 (en) * | 2010-02-08 | 2012-12-06 | Bartosz Gadomski | Metal seal having an insert that is not resistant to exhaust gas |
| CN102536506A (en) * | 2012-02-16 | 2012-07-04 | 重庆长安汽车股份有限公司 | Seal gasket for engine exhaust system |
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| CN103321773B (en) | 2016-11-23 |
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Effective date of registration: 20190320 Address after: 473000 East Industrial Park, Neixiang County, Nanyang City, Henan Province (Luandong Town) Patentee after: Nanyang Guoyu Industrial Co., Ltd. Address before: 474350 Yundu Avenue and Changfeng Road Intersection, Neixiang County, Nanyang City, Henan Province Patentee before: Nanyang GuoYu Seal Development Co., Ltd. |