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Adhesive used for brake shoe for urban rail transit and its manufacturing method

A technology for urban rail transit and manufacturing method, applied in the field of adhesives and their manufacturing, can solve problems such as affecting operational safety, accidental detachment and detachment of friction materials, and achieve the effects of preventing accidental detachment, reducing fatigue strength, and increasing energy absorption

Active Publication Date: 2012-07-25
SHANGHAI RENPHEN COMPOSITE MARERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the body material of the brake shoe for rail transit is a composite material, and the liner is a metal material, although the body material and the liner are bonded together by glue, because the glue and the liner are not of the same material, this structure is easy to cause The material of the brake shoe body is separated from the liner after long-term braking, causing the friction material to fall off unexpectedly, affecting operational safety

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for manufacturing an adhesive for urban rail transit brake shoes, comprising the following steps:

[0028] (1) Preparation of raw materials:

[0029] Component Weight percent

[0030] Silicone modified resin 45%

[0031] Nitrile powder 35%

[0032] Aramid pulp 2%

[0033] Graphite 15%

[0034] Iron Oxide Red 3%

[0035] (2) Preparation: Add the above-mentioned raw materials into a high-speed rake mixer in proportion and step by step for mixing, and at 80°C, press the obtained mixture and the brake shoe body material in a weight ratio of 1:20. Get the adhesive for brake shoes.

Embodiment 2

[0037] A method for manufacturing an adhesive for urban rail transit brake shoes, comprising the following steps:

[0038] (1) Preparation of raw materials:

[0039] Component Weight percent

[0040] Silicone modified resin 47%

[0041] Nitrile powder 30%

[0042] Aramid pulp 0.5%

[0043] Graphite 20%

[0044] Iron Oxide Red 2.5%

[0045] (2) Preparation: Add the above-mentioned raw materials into a high-speed rake mixer in proportion and step by step and mix them. At 100°C, the obtained mixture and the brake shoe body material are pressed together at a weight ratio of 1:20. Get the adhesive for brake shoes.

Embodiment 3

[0047] A method for manufacturing an adhesive for urban rail transit brake shoes, comprising the following steps:

[0048] (1) Preparation of raw materials:

[0049] Component Weight percent

[0050] Silicone modified resin 55%

[0051] Nitrile powder 35%

[0052] Aramid pulp 1.5%

[0053] Graphite 7%

[0054] Iron Oxide Red 1.5%

[0055] (2) Preparation: Add the above-mentioned raw materials into a high-speed rake mixer in proportion and step by step for mixing, and at 120°C, press the obtained mixture and the brake shoe body material at a weight ratio of 1:20. Get the adhesive for brake shoes.

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PUM

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Abstract

The invention relates to an adhesive used for a brake shoe for urban rail transit and its manufacturing method. The raw materials of the adhesive consist of the following components by weight percent: 25-55 of modified resin, 25-55 of butyronitrile powder, 0.1-10 of aramid pulp, 5-20 of graphite, and 0-5 of iron oxide red. The manufacturing method includes: adding the raw materials into a high speed plough harrow feed mixer for mixing, controlling the reaction temperature ranging from room temperature to 140DEG C, then conducting joint pressing so as to obtain the adhesive. Compared with prior art, the method of the invention can improve the performance of a friction material and increase the safety factor. The prepared adhesive can be guaranteed to be compatible with glue and the friction material body. During application of the adhesive, the brake shoe is added with a breaking elongation layer, which can increase energy absorption, decrease buffering, reduce brake shoe cracks causedby frequent braking, prevent accidental drop of the brake shoe, mitigate the fatigue strength of a brake shoe back, and prolong the service life of the brake shoe.

Description

technical field [0001] The invention relates to an adhesive and a manufacturing method thereof, in particular to an adhesive for urban rail transit brake shoes and a manufacturing method thereof. Background technique [0002] At present, most of the brake shoe structures used in urban rail transit are single structures, that is, only the friction material and the brake shoe liner are bonded together. Since the body material of the brake shoe for rail transit is a composite material, and the liner is a metal material, although the body material and the liner are bonded together by glue, because the glue and the liner are not of the same material, this structure is easy to cause The material of the brake shoe body is separated from the lining plate after long-term braking, causing the friction material to fall off unexpectedly, which affects operational safety. Contents of the invention [0003] The object of the present invention is to provide an adhesive for urban rail tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J161/14C09J109/02C09J11/04C09J11/08
Inventor 张定权
Owner SHANGHAI RENPHEN COMPOSITE MARERIALS
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