Piston dust shield material for automobile braking system and preparation method thereof

A technology of automobile braking system and dust cover, applied in mechanical equipment, engine components, engine sealing and other directions, can solve problems such as restricting the development of automobile manufacturers, shorten the filling time, speed up the flow speed, and prevent material shortage. and flow marks

Active Publication Date: 2012-12-12
DATWYLER SEALING TECH ANHUI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, domestic assembly and imported sports cars all rely on imports of piston dust covers for brake pistons, which is a technical bottleneck in the domestic auto industry and seriously restricts the development of my country's auto manufacturers.

Method used

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  • Piston dust shield material for automobile braking system and preparation method thereof
  • Piston dust shield material for automobile braking system and preparation method thereof
  • Piston dust shield material for automobile braking system and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] A piston dust cover material for an automobile brake system, which is composed of the following raw material components in proportion by weight: silicone rubber R750 (Germany Wacker) 100, vulcanizing agent bis-251.2, iron oxide black 4330 (Germany Bayferrox) ) 0.25, #2108 silicone color paste (Kunshan Fangyuan Silicon Material Co., Ltd.) 0.9.

[0087] The method for preparing the piston dust cover from the above-mentioned materials comprises the following steps:

[0088] (1) Immerse the skeleton of the piston dust cover completely in the adhesive for 3 minutes. The adhesive is a mixture of the adhesive Chemlok 608 and absolute ethanol at a mass ratio of 1:1. After taking it out, dry it at 95°C for 12 minutes. spare;

[0089] (2) Mix each raw material component according to the formula quantity, and press the molded part;

[0090] (3) Put the skeleton of the piston dust cover in step (1) into the mold, and preheat for 60 seconds at a temperature of 170°C;

[0091] (4)...

Embodiment 2

[0098] A piston dust cover material for an automobile brake system, which is composed of the following raw material components in proportion by weight: silicone rubber R420 (Wacker, Germany) 120, vulcanizing agent PDM 0.8, iron oxide red 4120 (Bayferrox, Germany) 0.3, Bayferrox silicone color paste (Bayferrox Germany) 0.7.

[0099] The method for preparing the piston dust cover from the above-mentioned materials comprises the following steps:

[0100] (1) Immerse the skeleton of the piston dust cover completely in the adhesive Chemlok 238 for 4 minutes, take it out and dry it at 100°C for 10 minutes, and set it aside;

[0101] (2) Mix each raw material component according to the formula quantity, and press the molded part;

[0102] (3) Put the skeleton of the piston dust cover in step (1) into the mold, and preheat it at 175°C for 50 seconds;

[0103] (4) Put the formed part of step (2) into the mold, at a temperature of 175°C and 50kgf / cm 2 Carry out a vulcanization for 42...

Embodiment 3

[0110] A piston dustproof cover material for an automobile brake system, which is composed of the following raw material components in proportion by weight: silicone rubber R401 / 90 (Wacker, Germany) 80, vulcanizing agent DCP1.5, 1630 light chrome yellow (Jiangsu Shuangle Chemical Pigment Co., Ltd.) 0.2, #2222 silica gel color paste (Kunshan Fangyuan Silicon Material Co., Ltd.) 1.2.

[0111] The method for preparing the piston dust cover from the above-mentioned materials comprises the following steps:

[0112] (1) Completely immerse the skeleton of the piston dust cover in the adhesive for 2 minutes. The adhesive is BD802 rubber-metal adhesive produced by Xiangfan Lianji Adhesive Factory. After taking it out, dry it at 90°C for 15 minutes and set it aside;

[0113] (2) Mix each raw material component according to the formula quantity, and press the molded part;

[0114] (3) Put the skeleton of the piston dust cover in step (1) into the mold, and preheat it for 70s at a temper...

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PUM

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Abstract

The invention discloses a piston dust shield material for an automobile braking system and a preparation method thereof. The material comprises the following raw materials in parts by weight: 50-180 parts of silicon rubber, 0.5-2 parts of vulcanizing agent, 0.1-0.4 part of pigment A and 0.4-1.5 parts of pigment B. The preparation method comprises the following steps: soaking a frame into an adhesive, forming raw materials, preheating the frame, and carrying out two-time sectional vulcanization. The piston dust shield material disclosed by the invention has the advantages of excellent high / low temperature resistance, favorable ductility, tear resistance, low compressive deformation and resistance to various greases, conforms to the requirements for working conditions of automobile braking air valves, and can be completely used instead of imported parts.

Description

technical field [0001] The invention belongs to the technical field of rubber materials and relates to a piston dust cover, in particular to a piston dust cover material for an automobile braking system and a preparation method thereof. Background technique [0002] The braking device is to forcefully slow down the moving car or stop it within the shortest distance as required, or to maintain a certain speed when the car is going down a long slope, so as to ensure that the car can reliably stop on the slope without slipping, so that the car The device that maximizes the high-speed driving performance under the premise of ensuring safety is closely related to the driver's life safety. For running cars, due to the fast driving speed, high inertia, and high instantaneous temperature during braking, the performance requirements for each component in the braking system are relatively high, especially for the key components in the brake—rubber parts. It has extremely excellent me...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L83/08C08L83/07B29C43/00F16J15/52
Inventor 马小鹏袁玉虎徐加勇金刚张传俊
Owner DATWYLER SEALING TECH ANHUI
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