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Oil-proof heat-proof automobile engine hollow pipe and preparation method thereof

An automobile engine and heat-resistant technology, which is applied in the field of automobile engine hollow pipes, can solve the problems of automobile engine failure, high work intensity, and difficulty to achieve at the same time, and achieves simple process, excellent heat resistance and oil resistance, and excellent mechanical properties. the effect of strength

Inactive Publication Date: 2018-03-23
芜湖瑞德机械科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Automobile engine hollow pipe is an important pipe component in automobile engine. Due to the high working strength and high internal temperature of automobile engine, and the hollow pipe needs to transport fuel, the hollow pipe of automobile engine is not only required to have excellent mechanical strength, At the same time, it also needs to have excellent heat resistance and oil resistance, but the existing hollow tubes of automobile engines are often difficult to meet these three requirements at the same time. Therefore, the hollow tubes of automobile engines often cause the failure of automobile engines

Method used

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  • Oil-proof heat-proof automobile engine hollow pipe and preparation method thereof

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preparation example Construction

[0014] The invention provides a method for preparing an oil-resistant and heat-resistant automobile engine hollow pipe, comprising:

[0015] 1) Put water glass, graphene and tetrabutyl titanate in dilute sulfuric acid for soaking, washing and drying to obtain modified silica gel;

[0016] 2) Conduct contact reaction with expanded vermiculite, 3-aminopropyltriethoxysilane, graphite and hydrochloric acid solution, filter and take filter cake to obtain activation modifier;

[0017] 3) Mix and knead chloroprene rubber, fluororubber, polycaprolactam, cyclodextrin, kaolin, beeswax, sulfur, stearate, zinc chloride, sodium tungstate, the modified silica gel and the activation modifier , Molding to make oil-resistant and heat-resistant automobile engine hollow tubes.

[0018] In step 1) of the present invention, the amount of each material can be selected within a wide range, but in order to further improve the mechanical strength, heat resistance and oil resistance of the car engine ...

Embodiment 1

[0032] 1) Mix water glass, graphene, tetrabutyl titanate, and dilute sulfuric acid with a concentration of 2.5% by weight according to a weight ratio of 100:1.5:2.9:400, then stand at 45°C for 6 hours, wash with water, and Dry at 530°C for 1.5h to obtain modified silica gel;

[0033] 2) Mix expanded vermiculite, 3-aminopropyltriethoxysilane, graphite and hydrochloric acid solution with a concentration of 25% by weight according to the weight ratio of 100:8:6:180, and contact and react at 85°C for 10h, filter Take filter cake to make activation modifier;

[0034] 3) Neoprene, fluororubber, polycaprolactam, cyclodextrin, kaolin, beeswax, sulfur, stearate (potassium stearate), zinc chloride, sodium tungstate, modified silica gel and activation modifier Mix according to the weight ratio of 100:59:19:10:13:27:15:5:7:6.5:23:32, knead at 240°C and 4Mpa for 4 hours, and extrude (extrusion molding temperature is 200 ℃) to prepare oil-resistant and heat-resistant automotive engine hol...

Embodiment 2

[0036] 1) Mix water glass, graphene, tetrabutyl titanate, and dilute sulfuric acid with a concentration of 2% by weight according to the weight ratio of 100:1:2.5:300, then stand at 40°C for 5h, wash with water, and Dry at 500°C for 1 hour to obtain modified silica gel;

[0037] 2) Mix expanded vermiculite, 3-aminopropyltriethoxysilane, graphite and hydrochloric acid solution with a concentration of 20% by weight according to the weight ratio of 100:5:3:150, and contact and react at 80°C for 8h, filter Take filter cake to make activation modifier;

[0038] 3) Neoprene, fluororubber, polycaprolactam, cyclodextrin, kaolin, beeswax, sulfur, stearate (sodium stearate), zinc chloride, sodium tungstate, modified silica gel and activation modifier Mix according to the weight ratio of 100:55:17:8:10:22:10:3.5:5:5.5:21:30, knead at 230°C and 3.5Mpa for 3 hours, and extrude (extrusion molding temperature is 190°C) to produce oil-resistant and heat-resistant automotive engine hollow tu...

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Abstract

The invention discloses an oil-proof heat-proof automobile engine hollow pipe and a preparation method thereof. The preparation method includes: 1) soaking sodium silicate, graphene and tetrabutyl titanate in dilute sulfuric acid, washing and drying to obtain modified silica gel; 2) subjecting expanded vermiculite, 3-aminopropyltriethoxysilane, graphite and hydrochloric acid to contact reaction, filtering and taking a filter cake to obtain an active modifier; 3) mixing chloroprene rubber, fluororubber, polycaprolactam, cyclodextrin, kaolin, beewax, sulfur, stearate, zinc chloride, sodium tungstate, the modified silica gel and the active modifier, mixing and forming to obtain the oil-proof heat-proof automobile engine hollow pipe. The oil-proof heat-proof automobile engine hollow pipe prepared according to the method is excellent in mechanical strength, heat resistance and oil resistance.

Description

[0001] Original application number: 2016108790943. [0002] The filing date of the original case: October 9, 2016. technical field [0003] The invention relates to an automobile engine hollow pipe, in particular to an oil-resistant and heat-resistant automobile engine hollow pipe and a preparation method thereof. Background technique [0004] Automobile engine hollow pipe is an important pipe component in automobile engine. Due to the high working strength and high internal temperature of automobile engine, and the hollow pipe needs to transport fuel, the hollow pipe of automobile engine is not only required to have excellent mechanical strength, At the same time, it is also required to have excellent heat resistance and oil resistance, but the existing hollow tubes for automobile engines are often difficult to meet these three requirements at the same time. Therefore, the hollow tubes for automobile engines often cause the failure of automobile engines. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L27/12C08L77/02C08L5/16C08L91/06C08K13/06C08K3/34C08K3/06C08K5/098C08K3/16C08K9/04C08K3/36C08K9/06C08K7/26C08K3/04
CPCC08K2003/168C08L11/00C08L2201/08C08L2203/18C08L2205/035C08L27/12C08L77/02C08L5/16C08L91/06C08K13/06C08K3/346C08K3/06C08K5/098C08K9/04C08K3/36C08K9/06C08K7/26C08K3/04C08K3/16
Inventor 卢国孝石宝军张华
Owner 芜湖瑞德机械科技有限公司
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