CN1031196C - Acrylonitrile rubber composite for sealing spacer, making method and application - Google Patents
Acrylonitrile rubber composite for sealing spacer, making method and application Download PDFInfo
- Publication number
- CN1031196C CN1031196C CN 93118788 CN93118788A CN1031196C CN 1031196 C CN1031196 C CN 1031196C CN 93118788 CN93118788 CN 93118788 CN 93118788 A CN93118788 A CN 93118788A CN 1031196 C CN1031196 C CN 1031196C
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- acrylonitrile rubber
- rubber composite
- asbestos
- gasket
- red
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Abstract
The present invention relates to three nitrile-butadiene rubber compositions for sealing gaskets, a manufacturing method thereof and the application thereof. The nitrile-butadiene rubber compositions comprising nitrile-butadiene rubber, natural rubber, sulfur, a vulcanization accelerator, pigments, cork powder as a supplemented elastic body and/or asbestos as a reinforcing material and long-fiber hemp threads are obtained through secondary mixing. The sealing gaskets prepared from the nitrile-butadiene rubber compositions have the advantages of elasticity, favorable thermal stability, favorable oil resistance and aging resistance.
Description
Existing gasket is pressed into Precondensed UreaFormaldehyde Resin and granulated cork, after saw blade is put the resin dip, and airing or oven dry, punch die moulding then.The oil-proofness of its thermostability is poor, and easily aging, other has the paper washer easy oil leakage, is not durable, and will cements with viscose glue, uses inconvenient.
It is a kind of for making good springiness that the object of the invention is to provide, and thermostability and oil-proofness are good, the acrylonitrile rubber composite that ageing-resistant gasket is used.
Technical solution scheme of the present invention is such: the contriver is through test of many times, and the result shows, is that cross-linking system is made external phase with rubber, mainly is butadiene-acrylonitrile rubber,
N=3000 in the formula-7000, and use a small amount of natural rubber
As supporting material, is the additional elastomerics of rubber with the dust cork with asbestos, macrofiber flax silk, white carbon black, also has preventing aging system: antioxidant D (
), anti-aging agent RD (
), antioxidant A (
) etc., and be added with color pigments: iron oxide red (Fe
2O
3), golden light bright red (
]
2Ba).
According to each position of engine gasket required the performance difference, acrylonitrile rubber composite of the present invention has three kinds, so that make three kinds of gaskets, first kind is to use for system cork-rubber pad, the parts by weight of its each component are: butadiene-acrylonitrile rubber 70-90, natural gum 10-30, Sulfur 1-3, vulcanization accelerator 2.5-4.5, protective agent 1.5-3.5, white carbon black 10-30, dust cork 140-200, iron oxide red 0.1-0.3, the bright red 0.5-1.5 of golden light are mainly used in more coarse flat seal.Second kind is to use for system asbestos flax silk rubber pad, the parts by weight of its each component are: butadiene-acrylonitrile rubber 70-90, natural gum 10-30, Sulfur 1-3, vulcanization accelerator 2.5-4.5, protective agent 1.5-3.5, white carbon black 10-30, asbestos 100-120, macrofiber flax silk 130-170, iron oxide red 0.1-0.3, golden light bright red 0.5-1.5, this gasket is used for two machining planes, more stressed flat seal.The third is that the parts by weight that contain dust cork, asbestos and macrofiber flax silk, each component simultaneously are: butadiene-acrylonitrile rubber 70-90, natural gum 10-30, Sulfur 1-3, vulcanization accelerator 2.5-4.5, protective agent 1.5-3.5, white carbon black 10-30, the weight ratio of a kind of dust cork, asbestos, macrofiber flax silk are 1: 1: 1.3 to 1: 3: 4 mixture 150-300, iron oxide red 0.1-0.3, golden light bright red 0.5-1.5.This acrylonitrile rubber composite has certain rigidity and elasticity, is used to make the gasket of discontinuity.
Production technique of the present invention is: after butadiene-acrylonitrile rubber, natural gum are mixed, plasticate with the 400mm mill, its temperature is 30-40 ℃; Add Sulfur, promotor, anti-aging agent, white carbon black, iron oxide red, the bright red mixture of golden light 400mm mill mixing, its temperature is 40-50 ℃, draws red rubber unvulcanizate; Adding the mixture of dust cork or asbestos, flax silk or dust cork, asbestos and macrofiber flax silk mixture then, to carry out secondary mixing, parked 24 hours, and made its inner fully infiltration, use the 230mm mill then, speed ratio is 1: 1, the roller temperature is 30-40 ℃, and the heat refining slice is behind the mould stamp, vulcanize with vulcanizing press, its temperature is 135-155 ℃, and the time is 3-5 minutes, pressure 1-1.2MPa.The finished product are red-brown.
Purposes of the present invention and result of use are: the gasket with acrylonitrile rubber composite of the present invention is made, can be used for the oil engine linker, and play in conjunction with the flat seal effect, fundamentally solved " three leak " problem of oil engine.Make 200 hours continuous serviceabilitys through Yulin Diesel Engine Plant, Guangxi Zhuang Nationality Autonomous Region and test, test-results shows to have following performance: 1. good springiness under the not too smooth condition of bonding surface, can guarantee the stopping property of diesel engine.2. Heat stability is good after this product installation use for some time, is opened and inspect and is not had the phenomenon of damage, in-50-250 ℃ of scopes, can reuse.3. oil-proofness is good, and dip 24 hours can remain unchanged, and presses nothing to damage phenomenon through oil immersion in the use.4. ageing-resistant performance is good, not influenced by the general chemistry material, and fast light, oxygen, ozone, mechanical vibration are aging.5. can adopt one time sulfidization molding according to user's design paper, material object, directly installation is used.
Embodiment 1, has elasticity according to cork, compress on-deformable characteristics, with the dust cork is main raw material, add rubber and other additive, make system parts flat seal cork-rubber pad, the acrylonitrile rubber composite of usefulness, the parts by weight of its each component are: butadiene-acrylonitrile rubber 80, natural gum 20, Sulfur 2.2, promotor 3.5, anti-aging agent 2.5, white carbon black 20 corks 170, iron oxide red 0.2 golden light bright red 1.
Embodiment 2, high temperature resistant according to asbestos, flax silk is high temperature resistant, pulling force is strong, indeformable characteristics, with asbestos, flax silk is main raw material, add rubber and other additive, make the paracril that smooth surface contact, stressed big flat seal asbestos rubber pad are used on the system two, the weight part that its each component comprises is: butadiene-acrylonitrile rubber 80, natural gum 20, Sulfur 2.2, promotor 3.6, anti-aging agent 2.5, white carbon black 15, asbestos 110, macrofiber flax silk 150, iron oxide red 0.2, golden light bright red 1.
Embodiment 3, contain dust cork in the prescription simultaneously, and asbestos and macrofiber flax silk are made has certain elasticity and hardness, is used to make discontinuity planar gasket.The parts by weight of each component are: butadiene-acrylonitrile rubber 80, natural gum 20, Sulfur 2.2, vulcanization accelerator 3.5, anti-aging agent 2.5, white carbon black 15, dust cork 36, asbestos 72, macrofiber flax silk 92, iron oxide red 0.2, golden light bright red 1.
Claims (7)
1, the acrylonitrile rubber composite used of a kind of gasket, it is characterized in that: the each component parts by weight are: butadiene-acrylonitrile rubber 70-90, natural gum 10-30, Sulfur 1-3, promotor 2.5-4.5, anti-aging agent 1.5-3.5, white carbon black 10-30, dust cork 140-200, iron oxide red 0.1-0.3, golden light bright red 0.5-1.5.
2 ,-acrylonitrile rubber composite that kind of gasket is used, it is characterized in that the each component parts by weight are: butadiene-acrylonitrile rubber 70-90, natural gum 10-30, Sulfur 1-3, promotor 2.5-4.5, anti-aging agent 1.5-3.5, white carbon black 10-30, asbestos 100-120, flax silk 130-170, iron oxide red 0.1-0.3, golden light bright red 0.5-1.5.
3, the acrylonitrile rubber composite used of a kind of gasket, the parts by weight that it is characterized in that each component are: butadiene-acrylonitrile rubber 70-90, natural gum 10-30, Sulfur 1-3, vulcanization accelerator 2.5-4.5, anti-aging agent 1.5-3.5, white carbon black 10-30, the weight part of-kind of dust cork, asbestos, macrofiber flax silk are 1: 1: 1.3 mixture 150-300, iron oxide red 0.1-0.3, golden light bright red 0.5-1.5.
4, the method for making of claim 1,2,3 acrylonitrile rubber composite: it is characterized in that, will butadiene-acrylonitrile rubber, natural gum plasticates after mixing, temperature is 30-40 ℃; It is mixing together to add the bright red mixture of Sulfur, vulcanization accelerator, white carbon black, iron oxide red, golden light, and temperature is 40-50 ℃, draws red rubber unvulcanizate; Add dust cork or asbestos, macrofiber flax silk mixture or dust cork, asbestos flax silk mixture then and carry out that secondary is mixing, temperature is 40-50 ℃, parks 24 hours; Heat refining slice then, its speed ratio is 1: 1, temperature is 30-40 ℃, stamp, sulfuration, its pressure is 1-1.2MPa, and temperature is 135-155 ℃, and the time is 3-5 minutes.
5, the acrylonitrile rubber composite of claim 1 is used to make the gasket of more coarse flat seal.
6, the acrylonitrile rubber composite of claim 2 is used to make the gasket of stressed two smooth table plane contact greatly.
7, the acrylonitrile rubber composite of claim 3 is used to make the discontinuity planar sealing pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93118788 CN1070518C (en) | 1993-10-27 | 1993-10-27 | The acrylonitrile rubber composite that gasket is used, its manufacture method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93118788 CN1070518C (en) | 1993-10-27 | 1993-10-27 | The acrylonitrile rubber composite that gasket is used, its manufacture method and application |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| CN1084862A CN1084862A (en) | 1994-04-06 |
| CN1031196C true CN1031196C (en) | 1996-03-06 |
| CN1070518C CN1070518C (en) | 2001-09-05 |
Family
ID=4992647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93118788 Expired - Fee Related CN1070518C (en) | 1993-10-27 | 1993-10-27 | The acrylonitrile rubber composite that gasket is used, its manufacture method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1070518C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837665B (en) * | 2010-05-27 | 2013-04-24 | 上海加富橡胶制品有限公司 | Rubber combination and diaphragm containing same |
| CN102952410B (en) * | 2012-08-06 | 2016-03-30 | 白景魁 | A kind of cork gasket circle and production method thereof |
| CN103849155B (en) * | 2012-12-07 | 2016-09-28 | 成都俊马密封制品有限公司 | Fibre cork rubber encapsulant and preparation method thereof |
| CN104592574A (en) * | 2015-01-30 | 2015-05-06 | 柳州市颖航汽配有限公司 | Rubber material for sealing automobile door and preparation method of rubber material |
| CN104804270A (en) * | 2015-04-30 | 2015-07-29 | 柳州玲通科技有限责任公司 | Oil-resistant sealing glue and preparation method thereof |
| CN106479004A (en) * | 2016-10-21 | 2017-03-08 | 佛山蓝途科技有限公司 | A kind of aging resistance gasket material and preparation method thereof |
-
1993
- 1993-10-27 CN CN 93118788 patent/CN1070518C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1084862A (en) | 1994-04-06 |
| CN1070518C (en) | 2001-09-05 |
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Owner name: ZHONGZI LAW OFFICE ROOM 901, LIANHE BUILDING, NO. Free format text: FORMER NAME OR ADDRESS: PATENT AGENT DEPARTMENT, BEIJING SHENXIANG INTELLECTUAL PROPERTY SERVICES COMPANY Owner name: LIANG XIANGRONG Free format text: FORMER NAME OR ADDRESS: LIU GUANGJIN; LIANG XIANGRONG; YANG DIKANG |
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Effective date of registration: 20010710 Patent agency after: Zhongzi Law Office Room 901, The Union Buildings, No. 20, Wai Wai Avenue, Beijing, Chaoyang District Patent agency before: Patent Agent Department, Beijing Sunshine Intellectual Property Service Firm Effective date of registration: 20010710 Agent after: Deng Dingji Agent before: Deng Dingji Agent before: Tao Yiban |
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