CN101493144A - High compression and high rebound degree plane sulfidization calendered automobile sealing gasket - Google Patents
High compression and high rebound degree plane sulfidization calendered automobile sealing gasket Download PDFInfo
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- CN101493144A CN101493144A CNA2009100665733A CN200910066573A CN101493144A CN 101493144 A CN101493144 A CN 101493144A CN A2009100665733 A CNA2009100665733 A CN A2009100665733A CN 200910066573 A CN200910066573 A CN 200910066573A CN 101493144 A CN101493144 A CN 101493144A
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Abstract
The invention relates to a plane sulfuration rolling automobile gland bush with high compression ratio and high rebound rate, which is characterized in that butadiene-acrylonitrile rubber, natural gum, fluorine rubber and resin modifying agent are taken as adhesives, mica, vermiculite and asbestos free fiber are taken as reinforced materials, and silicon dioxide, kaolin and barium sulfate are taken as heat resistant auxiliary material and accessory ingredient; the automobile gland bush is prepared by vulcanizing and compounding the adhesives, the reinforced materials, the heat resistant auxiliary material and the accessory ingredient with a heat resistant nylon net with 120 meshes of gridding and 0.1mm of mesh. The thickening rates of oil resistance and glycol solution resistance of the automobile gland bush are less than 3% and the weight increment rates are less than 5%; the compression ratio is 10-30% and the rebound rate is more than 50%.
Description
Technical field:
The present invention relates to a kind of high compression and high rebound degree plane sulfidization calendered automobile sealing gasket, be applied to positions such as motor car engine, gearbox and bridge.
Background technique:
Present automobile sealed pad forming technique mainly is to copy to follow the example of and roll-in method, and this forming method of two kinds all will be used solvent, as gasoline, and benzene or toluene etc., these solvents all can affect to environment.Traditional automobile sealing gasket mainly is to use asbestos fiber to strengthen, and asbestos fiber is the carcinogen of generally acknowledging, the America and Europe has banned use of the asbestos material now, therefore requires not have asbestosization at the automobile that exports to foreign countries.The compressibility low resilient rate of traditional in addition sealing gasket is low, can not well remedy body working surface precision deficiency, usually carry out surface screen-printed and carry out little sealing, but this has increased cost and environmental pollution again, does not meet environmental requirement.At present the design forward light weight of motor, volume is little, power is big and the environment protection type direction develops, cause that sealing surface is narrow and small, abnormal shape and bolt impacting force can not strengthen, this gives not only sealing technique and sealing material but also has higher requirement, a kind of sealing material can not solve the requirement of contemporary motor sealing technique, especially in the sealing part such as oil sump, gear-box, oil pump, cooler and pneumatics pump of the aluminum alloy of High Temperature High Pressure high surface pressure, to the different medium of lubricant oil, fuel oil, cooling water, vapour.If adopting with a kind of sealing material is the seal request that can not solve complexity like this.
Summary of the invention:
The object of the present invention is to provide a kind of high compression and high rebound degree plane sulfidization calendered automobile sealing gasket, the sealing gasket that it adopts the sulfuration of multiple fiber composite thoroughly solves the sealing problem of modern motor; Compressibility and rebound degree height, resistance to medium is good, and material does not contain and has or not asbestos, surface to need not to carry out silk-screen printing to come little sealing, reduce cost, reduce and pollute.
Technological scheme of the present invention is achieved in that high compression and high rebound degree plane sulfidization calendered automobile sealing gasket, it is characterized in that: form by weight: Nitrile Rubber 9～12 by following material, bacon rubber 1～2, fluorine rubber 4～8 and modified resin comprise epoxy resin, melamine resin and petroleum resin 7～11 are done binder, 325 order micas 10～15,325 order vermiculites 15～18 and no asbestos fiber comprise aramid fiber, carbon fiber, glass fibre, cellulose fiber peacekeeping rock wool fibers 12～23 is as reinforcing material, silica 2～3, white clay 2～3 and barium sulphate 3～4 are as heat-resisting auxiliary material, and auxiliary agent 1～3 comprises silane coupler 1510.5-1, antioxidant 4010 NG 0.4-0.8, antioxidant 1010 0.8-1.2, light stabilizer UV5310.4-0.6.
Concrete process step is as follows:
1, the low at a high speed batch mixing of shearing
With modified resin, 325 order micas, 325 order vermiculites and no asbestos fiber, silica, white clay and barium sulphate and the auxiliary agent that comprises silane coupler 151, antioxidant 4010 NG, antioxidant 1010, light stabilizer UV53 are put into and are lowly at a high speed sheared batch mixer and stir, speed is 1200～1800 rev/mins, mixing time is 30 minutes, and fiber can not be agglomerating;
2, low speed high shearing batch mixing
The mixture that stirs and Nitrile Rubber, bacon rubber, fluorine rubber joined carry out in the low speed high shear mixer that low speed is powerful to be stirred, speed is 30～40 rev/mins, mixing time is 90 minutes, temperature is no more than 120 ℃, avoid material sulfuration in advance in stirrer, be unfavorable for shaping operation, make fiber even with rubber mix;
3, open refining
The material that the low speed high shear mixer is come out is placed in the mill evenly mastication, treat bubble collapse after, the surface temperature of material goes out material base when reaching 50 ℃;
4, sulfuration
With grid is 120 orders, and it is compound that twine is that the heat-resisting nylon net of 0.1mm vulcanizes, and will roll good semi-finished product and cut out by the specification of pad and be slit into standard sample, is placed on and vulcanizes on the vulcanizing press; System pressure is 16MPa, and sulfurize temperature is 140～160 ℃, and the time is 5～6 minutes.
Good effect of the present invention is to satisfy automobile sealed narrow positions; Thickness need not to press from both sides net at 0.6～2.0mm, mainly utilizes the high rebound degree of high compression rate to remedy the problem of the machining accuracy difference at automobile sealed position, the rate that thickens of oil resistance, ethylene glycol resistant solution all less than 3% and rate of body weight gain all less than 5%; Its compressibility 10～30% and rebound degree are greater than 50%.
Embodiment:
The present invention will be further described below in conjunction with embodiment:
Embodiment 1:
Powder 325 order micas, 10,325 order vermiculites 15 and aramid fiber 12 and silica 2, white clay 2 and barium sulphate 3 and the auxiliary agent that comprises silane coupler 151 0.5, antioxidant 4010 NG 0.4, antioxidant 1010 0.8, light stabilizer UV53 0.4 put into lowly at a high speed shear batch mixer and stir, speed is 1200～1800 rev/mins, mixing time is 30 minutes, and fiber can not be agglomerating; The mixture that stirs and Nitrile Rubber 9, bacon rubber 1, fluorine rubber 4 and epoxy resin 7 joined carry out in the low speed high shear mixer that low speed is powerful to be stirred, speed is 30～40 rev/mins, mixing time is 90 minutes, temperature is no more than 120 ℃, avoid material sulfuration in advance in stirrer, be unfavorable for shaping operation, make fiber even with rubber mix; The material that the low speed high shear mixer is come out is placed in the mill evenly mastication, treat bubble collapse after, the surface temperature of material goes out material base when reaching 50 ℃; With grid is 120 orders, and it is compound that twine is that the heat-resisting nylon net of 0.1mm vulcanizes, and will roll good semi-finished product and cut out by the specification of pad and be slit into standard sample, is placed on and vulcanizes on the vulcanizing press; System pressure is 16MPa, and sulfurize temperature is 140～160 ℃, and the time is 5～6 minutes.
Embodiment 2:
Powder 325 order micas, 12,325 order vermiculites 17 and carbon fiber 19 and silica 2.5, white clay 2.5 and barium sulphate 3.5 and the auxiliary agent that comprises silane coupler 1510.75, antioxidant 4010 NG 0.6, antioxidant 1010 0.9, light stabilizer UV53 0.5 put into lowly at a high speed shear batch mixer and stir, speed is 1200～1800 rev/mins, mixing time is 30 minutes, and fiber can not be agglomerating; The stuffing that stirs and Nitrile Rubber 10, bacon rubber 1.5, fluorine rubber 6 and melamine resin 9 joined carry out in the low speed high shear mixer that low speed is powerful to be stirred, speed is 30～40 rev/mins, mixing time is 90 minutes, temperature is no more than 120 ℃, avoid material sulfuration in advance in stirrer, be unfavorable for shaping operation, make fiber even with rubber mix; The material that the low speed high shear mixer is come out is placed in the mill evenly mastication, treat bubble collapse after, the surface temperature of material goes out material base when reaching 50 ℃; With grid is 120 orders, and it is compound that twine is that the heat-resisting nylon net of 0.1mm vulcanizes, and will roll good semi-finished product and cut out by the specification of pad and be slit into standard sample, is placed on and vulcanizes on the vulcanizing press; System pressure is 16MPa, and sulfurize temperature is 140～160 ℃, and the time is 5～6 minutes.
Embodiment 3:
Powder 325 order micas, 15,325 order vermiculites 18 and glass fibre 23 and silica 3, white clay 3 and barium sulphate 4 and the auxiliary agent that comprises silane coupler 151 1, antioxidant 4010 NG 0.8, antioxidant 1010 1.2, light stabilizer UV53 0.6 put into lowly at a high speed shear batch mixer and stir, speed is 1200～1800 rev/mins, mixing time is 30 minutes, and fiber can not be agglomerating; The stuffing that stirs and Nitrile Rubber 12, bacon rubber 2, fluorine rubber 8 and petroleum resin 12 are joined carry out in the low speed high shear mixer that low speed is powerful to be stirred, speed is 30～40 rev/mins, mixing time is 90 minutes, temperature is no more than 120 ℃, avoid material sulfuration in advance in stirrer, be unfavorable for shaping operation, make fiber even with rubber mix; The material that the low speed high shear mixer is come out is placed in the mill evenly mastication, treat bubble collapse after, the surface temperature of material goes out material base when reaching 50 ℃; With grid is 120 orders, and it is compound that twine is that the heat-resisting nylon net of 0.1mm vulcanizes, and will roll good semi-finished product and cut out by the specification of pad and be slit into standard sample, is placed on and vulcanizes on the vulcanizing press; System pressure is 16MPa, and sulfurize temperature is 140～160 ℃, and the time is 5～6 minutes.
Embodiment 4
Powder 325 order micas, 10,325 order vermiculites 15 and rock wool fibers 23 and silica 2.5, white clay 2.5 and barium sulphate 3.5 and the auxiliary agent that comprises silane coupler 1511, antioxidant 4010 NG 0.8, antioxidant 1010 1.2, light stabilizer UV53 0.6 put into lowly at a high speed shear batch mixer and stir, speed is 1200～1800 rev/mins, mixing time is 30 minutes, and fiber can not be agglomerating; The stuffing that stirs and Nitrile Rubber 9, bacon rubber 1, fluorine rubber 4 and petroleum resin 11 are joined carry out in the low speed high shear mixer that low speed is powerful to be stirred, speed is 30～40 rev/mins, mixing time is 90 minutes, temperature is no more than 120 ℃, avoid material sulfuration in advance in stirrer, be unfavorable for shaping operation, make fiber even with rubber mix; The material that the low speed high shear mixer is come out is placed in the mill evenly mastication, treat bubble collapse after, the surface temperature of material goes out material base when reaching 50 ℃; With grid is 120 orders, and it is compound that twine is that the heat-resisting nylon net of 0.1mm vulcanizes, and will roll good semi-finished product and cut out by the specification of pad and be slit into standard sample, is placed on and vulcanizes on the vulcanizing press; System pressure is 16MPa, and sulfurize temperature is 140～160 ℃, and the time is 5～6 minutes.
Embodiment 5:
Powder 325 order micas, 10,325 order vermiculites 15 and cellulose fiber 23 and silica 2.5, white clay 2.5 and barium sulphate 3.5 and the auxiliary agent that comprises silane coupler 151 0.75, antioxidant 4010 NG 0.6, antioxidant 1010 0.9, light stabilizer UV53 0.5 put into lowly at a high speed shear batch mixer and stir, speed is 1200～1800 rev/mins, mixing time is 30 minutes, and fiber can not be agglomerating; The stuffing that stirs and Nitrile Rubber 9, bacon rubber 1, fluorine rubber 4 and petroleum resin 11 are joined carry out in the low speed high shear mixer that low speed is powerful to be stirred, speed is 30～40 rev/mins, mixing time is 90 minutes, temperature is no more than 120 ℃, avoid material sulfuration in advance in stirrer, be unfavorable for shaping operation, make fiber even with rubber mix; The material that the low speed high shear mixer is come out is placed in the mill evenly mastication, treat bubble collapse after, the surface temperature of material goes out material base when reaching 50 ℃; With grid is 120 orders, and it is compound that twine is that the heat-resisting nylon net of 0.1mm vulcanizes, and will roll good semi-finished product and cut out by the specification of pad and be slit into standard sample, is placed on and vulcanizes on the vulcanizing press; System pressure is 16MPa, and sulfurize temperature is 140～160 ℃, and the time is 5～6 minutes.
Claims (5)
1, high compression and high rebound degree plane sulfidization calendered automobile sealing gasket, it is characterized in that: be made up of by weight following material: Nitrile Rubber 9～12, bacon rubber 1～2, fluorine rubber 4～8 and modified resin 7～11 are done binder, 325 order micas 10～15,325 order vermiculites 15～18 and no asbestos fiber 12～23 are as reinforcing material, silica 2～3, white clay 2～3 and barium sulphate 3～4 is as heat-resisting auxiliary material, auxiliary agent 1～3.
2, high compression and high rebound degree plane sulfidization calendered automobile sealing gasket according to claim 1 is characterized in that described modified resin comprises epoxy resin, melamine resin and petroleum resin.
3, high compression and high rebound degree plane sulfidization calendered automobile sealing gasket according to claim 1 is characterized in that described no asbestos fiber comprises aramid fiber, carbon fiber, glass fibre, cellulose fiber peacekeeping rock wool fibers.
4, high compression and high rebound degree plane sulfidization calendered automobile sealing gasket according to claim 1 is characterized in that described auxiliary agent comprises silane coupler 151 0.5-1, antioxidant 4010 NG 0.4-0.8, antioxidant 1010 0.8-1.2, light stabilizer UV531 0.4-0.6.
5, high compression and high rebound degree plane sulfidization calendered automobile sealing gasket according to claim 1 is characterized in that the processing method of described automobile sealing gasket is as follows:
(1), the low at a high speed batch mixing of shearing
With modified resin, 325 order micas, 325 order vermiculites and no asbestos fiber, silica, white clay and barium sulphate and the auxiliary agent that comprises silane coupler 151, antioxidant 4010 NG, antioxidant 1010, light stabilizer UV53 are put into and are lowly at a high speed sheared batch mixer and stir, speed is 1200～1800 rev/mins, mixing time is 30 minutes, and fiber can not be agglomerating;
(2), low speed high shearing batch mixing
The mixture that stirs and Nitrile Rubber, bacon rubber, fluorine rubber joined carry out in the low speed high shear mixer that low speed is powerful to be stirred, speed is 30～40 rev/mins, mixing time is 90 minutes, temperature is no more than 120 ℃, avoid material sulfuration in advance in stirrer, be unfavorable for shaping operation, make fiber even with rubber mix;
(3), open refining
The material that the low speed high shear mixer is come out is placed in the mill evenly mastication, treat bubble collapse after, the surface temperature of material goes out material base when reaching 50 ℃;
(4), sulfuration
With grid is 120 orders, and it is compound that twine is that the heat-resisting nylon net of 0.1mm vulcanizes, and will roll good semi-finished product and cut out by the specification of pad and be slit into standard sample, is placed on and vulcanizes on the vulcanizing press; System pressure is 16MPa, and sulfurize temperature is 140～160 ℃, and the time is 5～6 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100665733A CN101493144A (en) | 2009-02-27 | 2009-02-27 | High compression and high rebound degree plane sulfidization calendered automobile sealing gasket |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100665733A CN101493144A (en) | 2009-02-27 | 2009-02-27 | High compression and high rebound degree plane sulfidization calendered automobile sealing gasket |
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| CN101493144A true CN101493144A (en) | 2009-07-29 |
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| CNA2009100665733A Pending CN101493144A (en) | 2009-02-27 | 2009-02-27 | High compression and high rebound degree plane sulfidization calendered automobile sealing gasket |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627041A (en) * | 2013-11-06 | 2014-03-12 | 安徽江威精密制造有限公司 | Oil-resistant multi-rubber compounded rubber capacitor sealing gasket and preparation method thereof |
| CN103665488A (en) * | 2013-11-18 | 2014-03-26 | 蚌埠市时代电子有限公司 | Sealing gasket material prepared by mixing natural butadiene styrene rubber and preparation method of sealing gasket material |
| CN103694502A (en) * | 2013-11-29 | 2014-04-02 | 马鞍山市中澜橡塑制品有限公司 | Sealing gasket material formed by compounding natural rubber and butadiene rubber and preparation method of sealing gasket material |
| CN103694514A (en) * | 2013-11-29 | 2014-04-02 | 马鞍山市中澜橡塑制品有限公司 | Sealing gasket material prepared through milling natural rubber and nitrile rubber and preparation method thereof |
| CN103724719A (en) * | 2013-12-13 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Rectangular rubber ring with high acid-alkali corrosion resistance |
| CN104311921A (en) * | 2014-10-27 | 2015-01-28 | 安徽锐视光电技术有限公司 | Cold-resistant, light-resistant and water-resistant synthetic rubber for color selector and preparation method of synthetic rubber |
| CN105733287A (en) * | 2015-05-29 | 2016-07-06 | 苏州亚思科精密数控有限公司 | Damper used for machine tools and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627041A (en) * | 2013-11-06 | 2014-03-12 | 安徽江威精密制造有限公司 | Oil-resistant multi-rubber compounded rubber capacitor sealing gasket and preparation method thereof |
| CN103665488A (en) * | 2013-11-18 | 2014-03-26 | 蚌埠市时代电子有限公司 | Sealing gasket material prepared by mixing natural butadiene styrene rubber and preparation method of sealing gasket material |
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| CN103724719A (en) * | 2013-12-13 | 2014-04-16 | 芜湖佳诚电子科技有限公司 | Rectangular rubber ring with high acid-alkali corrosion resistance |
| CN104311921A (en) * | 2014-10-27 | 2015-01-28 | 安徽锐视光电技术有限公司 | Cold-resistant, light-resistant and water-resistant synthetic rubber for color selector and preparation method of synthetic rubber |
| CN105733287A (en) * | 2015-05-29 | 2016-07-06 | 苏州亚思科精密数控有限公司 | Damper used for machine tools and preparation method thereof |
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