Oil seal material for automobile gearbox and preparation method of oil seal material

A technology for automotive gearboxes and oil seals, applied in the field of polymers, can solve problems such as poor oil resistance and achieve good sealing effects

Active Publication Date: 2015-05-06
广西颖航科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing oil seal materials for automotive gearboxes have poor oil resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] The formula of oil seal material for automobile gearbox of the present invention is as follows:

[0011] Acrylic rubber 75kg, fluororubber 25kg, octyltin maleate 8kg, glass fiber 2.5kg, stearic acid 4kg, calcium carbonate 0.6kg, magnesium dimethacrylate 4kg, dry oil alkyd resin 4kg, paraffin 1.5kg, Oleic acid diethanolamine borate 1.2kg, diacetyl peroxide 1.5kg, zinc oxide 1kg, aluminum oxide 9kg, white carbon black 7kg, antioxidant 1.2kg, sulfur 2kg.

[0012] The preparation method of oil seal material for automobile gearbox of the present invention is as follows:

[0013] The acrylic rubber and the fluororubber in the prescribed amount are thinned separately and mixed into the open mill, and then the rest of the components are added into the open mill for mixing until uniform, and then the sheet is obtained to obtain the mixed rubber, and the mixed rubber is One-stage vulcanization, the vulcanization temperature is controlled at 160°C, the vulcanization time is 35 mi...

Embodiment 2

[0015] The formula of oil seal material for automobile gearbox of the present invention is as follows:

[0016] Acrylic rubber 70kg, fluororubber 20kg, octyltin maleate 10kg, glass fiber 2kg, stearic acid 5kg, calcium carbonate 0.8kg, magnesium dimethacrylate 3kg, drying oil alkyd resin 3kg, paraffin 1kg, oleic acid Diethanolamine borate 1kg, diacetyl peroxide 1kg, zinc oxide 1.2kg, aluminum oxide 8kg, white carbon black 8kg, antioxidant 0.8kg, sulfur 1kg.

[0017] The preparation method of oil seal material for automobile gearbox of the present invention is as follows:

[0018] The acrylic rubber and the fluororubber in the prescribed amount are thinned separately and mixed into the open mill, and then the rest of the components are added into the open mill for mixing until uniform, and then the sheet is obtained to obtain the mixed rubber, and the mixed rubber is One-stage vulcanization, the vulcanization temperature is controlled at 150°C, the vulcanization time is 30 minu...

Embodiment 3

[0020] The formula of oil seal material for automobile gearbox of the present invention is as follows:

[0021] Acrylic rubber 80kg, fluororubber 30kg, octyltin maleate 5kg, glass fiber 3kg, stearic acid 3kg, calcium carbonate 0.5kg, magnesium dimethacrylate 5kg, dry oil alkyd resin 5kg, paraffin wax 2kg, oleic acid Diethanolamine borate 1.5kg, diacetyl peroxide 2kg, zinc oxide 0.8kg, aluminum oxide 10kg, white carbon black 6kg, antioxidant 1.5kg, sulfur 3kg.

[0022] The preparation method of oil seal material for automobile gearbox of the present invention is as follows:

[0023] The acrylic rubber and the fluororubber in the prescribed amount are thinned separately and mixed into the open mill, and then the rest of the components are added into the open mill for mixing until uniform, and then the sheet is obtained to obtain the mixed rubber, and the mixed rubber is One-stage vulcanization, the vulcanization temperature is controlled at 170°C, the vulcanization time is 40 m...

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PUM

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Abstract

The invention provides an oil seal material for an automobile gearbox. The oil seal material for the automobile gearbox is composed of the following components in parts by mass: 70-80 parts of acrylate rubber, 20-30 parts of fluorous rubber, 5-10 parts of dioctyl tin maleate, 2-3 parts of glass fiber, 3-5 parts of stearic acid, 0.5-0.8 part of calcium carbonate, 3-5 parts of magnesium dimethacrylate, 3-5 parts of drying alkyd resin, 1-2 parts of paraffin, 1-1.5 parts of oleic diethanolamine borate, 1-2 parts of acetyl peroxide, 0.8-1.2 parts of zinc oxide, 8-10 parts of aluminum oxide, 6-8 parts of white carbon black, 0.8-1.5 parts of an anti-aging agent and 1-3 parts of sulfur. The invention also provides a preparation method of the oil seal material. The oil seal material for the automobile gearbox, provided by the invention, has favorable sealing performance, high-temperature resistance and oil resistance and is suitable for sealing the automobile gearbox.

Description

technical field [0001] The invention belongs to the technical field of polymers, and in particular relates to an oil seal material for an automobile gearbox. Background technique [0002] Automotive oil seals are precision rubber components with the most complex structure, the highest technical content, and the most widely used rotary seals. Its quality not only affects the sealing performance and service life of the car, but more importantly, affects the driving and safety of the car. The main function of the gearbox oil seal is to prevent lubricating oil from leaking out from the fitting gap between the hole and the shaft, and to prevent dust and impurities from entering the inside. In order to ensure its tightness and working reliability under any working conditions of the car, the oil seal needs to be able to withstand the working conditions of high speed, medium resistance and high and low temperature resistance. The oil resistance performance of the existing oil seal...

Claims

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Application Information

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IPC IPC(8): C08L33/04C08L27/12C08L67/08C08L91/06C08K13/04C08K7/14C08K5/57C08K5/09C08K3/26C08K5/098C08K5/55C08K5/14C08K3/22C08K3/36C08K3/06B29C35/02
Inventor 莫海燕
Owner 广西颖航科技有限公司
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