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Oil-resistant and heat-resistant automobile engine hollow tube and preparation method thereof

一种汽车发动机、耐热的技术，应用在汽车发动机中空管领域，能够解决汽车发动机发生故障、难以同时达到、工作强度大等问题，达到工序简单、优异机械强度、优异耐热性和耐油性的效果

Inactive Publication Date: 2018-03-27
WUHU RUIDE MASCH TECH CO LTD
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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-resistant and heat-resistant automobile engine hollow tube 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-resistant and heat-resistant automobile engine hollow tube and a preparation method thereof. The preparation method comprises the following steps: 1) soaking sodium silicate, graphene and tetrabutyl titanate in dilute sulphuric acid, washing and drying to produce modified silica gel; 2) subjecting expand vermiculite, 3-aminopropyl triethoxysilane, graphite and a hydrochloric acid solution to a contact reaction, filtering to take a filter cake to obtain an activated modifier; 3) mixing chloroprene rubber, fluorine rubber, polycaprolactam, cyclodextrin, kaolin, beeswax, sulphur, stearate, zinc chloride, sodium tungstate, the modified silica gel and the activated modifier, milling and molding to obtain the oil-resistant and heat-resistant automobile engine hollow tube. The automobile engine hollow tube prepared by the method not only has excellent mechanical strength, but also has excellent 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 WUHU RUIDE MASCH TECH CO LTD
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