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Diesel engine oil pipe seal gasket with high thermal stability

A high thermal stability, diesel engine technology, applied in the direction of reagents, educts, products, etc., can solve the problems of high thermal stability requirements, the temperature rise of the turbocharger oil inlet pipe, etc., to achieve easy use and promotion, excellent sealing effect, hardness Balanced effect with toughness

Inactive Publication Date: 2018-05-15
全椒县新华机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the internal combustion engine is working, the exhaust manifold is a high-temperature part. The high-temperature exhaust manifold radiates a lot of heat to the surroundings. The oil inlet pipe of the supercharger is heated by heat radiation and the temperature rises. Heat transfer transfers heat to the sealing gasket. The current sealing gasket is generally made of rubber material, which requires extremely high thermal stability and needs to be improved urgently.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A high thermal stability sealing gasket for diesel engine oil pipe, its raw materials include: 90g of main material, 15g of kaolin compound, 8g of coal gangue, 10g of glass fiber, 1g of crosslinking agent, 2g of tricresyl phosphate, 1g of epoxy fatty acid methyl ester , chlorinated paraffin 0.8g, disproportionated rosin 0.4g, antioxidant SP 2g, antioxidant AW 1g.

[0015] The main ingredients include: nitrile silicone rubber 70g, styrene-butadiene rubber 25g. The crosslinking agent includes: 0.8 g of trimethylolpropane triacrylate, and 1 g of tert-butyl peroxybenzoate.

[0016] The kaolin compound was prepared by the following process: 12g kaolin, 1g sepiolite powder, 1.2g bentonite, 1g tetrabutyl titanate, 60g water were stirred for 20min at a stirring speed of 1400r / min, 1g cocamidopropyl betaine, 1g of sodium hydroxide was mixed evenly, ball milled for 5 min at a speed of 1000 r / min, filtered, washed and dried to obtain a kaolin composite.

Embodiment 2

[0018] A high thermal stability sealing gasket for diesel engine oil pipe, its raw materials include: main material 100g, kaolin compound 4g, coal gangue 12g, glass fiber 4g, crosslinking agent 2g, tricresyl phosphate 1g, epoxy fatty acid methyl ester 2g , chlorinated paraffin 0.2g, disproportionated rosin 1.2g, antioxidant SP 1g, antioxidant AW 2g.

[0019] Main ingredients include: nitrile silicone rubber 60g, styrene-butadiene rubber 35g. The crosslinking agent includes: 0.2 g of trimethylolpropane triacrylate, and 2 g of tert-butyl peroxybenzoate.

[0020] The kaolin compound was prepared by the following process: 5g kaolin, 4g sepiolite powder, 0.5g bentonite, 2g tetrabutyl titanate, 40g water were stirred for 30min at a stirring speed of 1200r / min, and 3g cocamidopropyl betaine, 0.5 g of sodium hydroxide was mixed evenly, ball milled for 15 min at a speed of 800 r / min, filtered, washed and dried to obtain a kaolin composite.

Embodiment 3

[0022] A high thermal stability sealing gasket for diesel engine oil pipe, its raw materials include: main material 92g, kaolin compound 12g, coal gangue 9g, glass fiber 8g, crosslinking agent 1.2g, tricresyl phosphate 1.8g, epoxy fatty acid methyl 1.3g of ester, 0.6g of chlorinated paraffin, 0.6g of disproportionated rosin, 1.8g of anti-aging agent SP, 1.3g of anti-aging agent AW.

[0023] The main ingredients include: nitrile silicone rubber 66g, styrene-butadiene rubber 28g. The crosslinking agent includes: 0.6 g of trimethylolpropane triacrylate, and 1.2 g of tert-butyl peroxybenzoate.

[0024] The kaolin compound was prepared by the following process: 10g kaolin, 2g sepiolite powder, 1g bentonite, 1.3g tetrabutyl titanate, 55g water were stirred for 22min at a stirring speed of 1350r / min, and 1.5g cocamidopropyl betaine was added and 0.8 g of sodium hydroxide were mixed evenly, ball milled for 8 min at a speed of 950 r / min, filtered, washed, and dried to obtain a kaolin ...

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PUM

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Abstract

The invention discloses a diesel engine oil pipe seal gasket with high thermal stability. The diesel engine oil pipe seal gasket comprises the following raw materials in parts by weight: 90 to 100 parts of a main material, 4 to 15 parts of a kaolin compound, 8 to 12 parts of coal gangue, 4 to 10 parts of glass fiber, 1 to 2 parts of a cross-linking agent, 1 to 2 parts of tricresyl phosphate, 1 to2 parts of epoxidized fatty acid methyl ester, 0.2 to 0.8 part of chlorinated paraffin, 0.4 o 1.2 parts of disproportionated rosin, 1 to 2 parts of an anti-aging agent SP and 1 to 2 parts of an anti-aging agent AW, wherein the kaolin compound is prepared by adopting the following process: mixing kaolin, sepiolite powder, bentonite, tetrabutyl titanate and water under stirring, adding cocamidopropyl betaine and sodium hydroxide, carrying out uniform mixing, subjecting an obtained mixture to ball milling, filtering, washing and drying so as to obtain the kaolin compound. The diesel engine oil pipe seal gasket provided by the invention has the advantages of excellent thermal stability, good impact-resistant effect, good mechanical properties and excellent seal effect, can effectively preventoil impregnation, greatly improves the work reliability of a diesel engine oil pipe, and facilitates application and popularization.

Description

technical field [0001] The invention relates to the technical field of oil pipes of diesel engines, in particular to a sealing gasket for oil pipes of diesel engines with high thermal stability. Background technique [0002] For compact supercharged diesel engines, due to space constraints, the turbocharger oil inlet pipeline of the diesel engine is generally arranged on the exhaust side of the internal combustion engine, and the distance from the turbine casing, exhaust manifold and exhaust pipe after the turbine All arranged very close together. When the internal combustion engine is working, the exhaust manifold is a high-temperature part. The high-temperature exhaust manifold radiates a lot of heat to the surroundings. The oil inlet pipe of the supercharger is heated by heat radiation and the temperature rises. Heat transfer transfers heat to the sealing gasket. The current sealing gasket is generally made of rubber material, which requires extremely high thermal stabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/08C08L9/06C08L91/06C08L93/04C08K13/04C08K3/34C08K5/10C08K7/14C08K5/523C08K3/36C08K3/22
CPCC08K2003/2227C08K2201/014C08L83/08C08L2201/02C08L2201/08C08L2203/18C08L2205/035C08L9/06C08L91/06C08L93/04C08K13/04C08K3/346C08K5/10C08K7/14C08K5/523C08K3/36C08K3/22Y02P20/141
Inventor 王臣
Owner 全椒县新华机械有限责任公司
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