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Piston dust shield material for automobile braking system

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

Active Publication Date: 2015-03-18
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
  • Piston dust shield material for automobile braking system
  • Piston dust shield material for automobile braking system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] A piston dust cover material for an automobile brake system, which is formed by proportioning the following raw material components by weight: silicone rubber R750 (Wacker, Germany) 100, vulcanizing agent double-25 1.2, iron oxide black 4330 (Bayer, Germany) Le) 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) The skeleton of the piston dust cover is completely immersed in the adhesive for 3 minutes. The adhesive is a mixture of the adhesive Chemlok 608 and absolute ethanol in a mass ratio of 1:1. After taking it out, dry it at 95°C for 12 minutes. spare;

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

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

[0091...

Embodiment 2

[0098] A piston dust cover material for an automobile braking system, which is formed by proportioning the following raw material components 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) mixing each raw material component according to the formula quantity, and pressing the molded part;

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

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

Embodiment 3

[0110] A piston dust cover material for an automobile brake system, which is formed by proportioning raw material components comprising the following parts 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) The skeleton of the piston dust cover is completely immersed in the adhesive for 2 minutes. The adhesive is the BD802 rubber-metal adhesive produced by Xiangfan Lianji Adhesive Factory. After taking it out, dry it at a temperature of 90°C for 15 minutes and set it aside;

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

[0114] (3) Put the piston dust cover skeleton of step (1) into the mold, ...

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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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Patent Type & Authority Patents(China)
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