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High-friction synthetic brake shoe for high-power xhn5 locomotive and its preparation method and application

A technology of synthesizing brake shoes and phenolic resins, applied in brakes, mechanical equipment, brake parts, etc. where brake elements interact with rails, can solve problems such as metal inlay, achieve high compressive strength and hardness, and improve friction stability , expensive effect

Active Publication Date: 2015-09-02
METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the object of the present invention is to overcome the defect that the existing high-friction synthetic brake shoes are prone to metal embedding, and to provide a high-friction synthetic brake shoe capable of preventing metal embedding and its preparation method and application

Method used

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  • High-friction synthetic brake shoe for high-power xhn5 locomotive and its preparation method and application
  • High-friction synthetic brake shoe for high-power xhn5 locomotive and its preparation method and application

Examples

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Embodiment 1

[0035] This example is used to illustrate the high-friction synthetic brake shoe and its preparation method of the present invention.

[0036] (1) Raw material mixing:

[0037] The components of the high-friction synthetic brake shoe and their proportions by weight are as follows:

[0038]

[0039] The specifications of the above raw materials are: 2123 phenolic resin: curing speed 60-90 seconds / 160°C, softening point 100-105°C, free phenol content 4%; nitrile rubber powder: cross-linked type, fineness 40 mesh; reduced iron Powder: iron content 98%, fineness 80 mesh; sepiolite fiber: MY-A type, Hebei Mingyang Company, fiber length 0.2-5mm, moisture content 3%, whiteness 80%, sand content 1%; Barium sulfate: white amorphous powder, barium sulfate content 99%, fineness above 200 mesh; wollastonite: light gray fibrous, aspect ratio 10:1, SiO 2 content of 51.75%, CaO content of 48.25%; potassium feldspar: fineness greater than 200 mesh, potassium oxide content of 8.9%; graphi...

Embodiment 2

[0046] This example is used to illustrate the high-friction synthetic brake shoe and its preparation method of the present invention.

[0047] (1) Raw material mixing

[0048] The components of the high-friction synthetic brake shoe and their proportions by weight are as follows:

[0049]

[0050] The specifications of the above raw materials are: 2123 phenolic resin: curing speed 60-90 seconds / 160°C, softening point 100-105°C, free phenol content 4%; nitrile rubber powder: cross-linked type, fineness 40 mesh; reduced iron Powder: iron content 98%, fineness 80 mesh; sepiolite fiber: MY-A type, Hebei Mingyang Company, fiber length 0.2-5mm, moisture content 3%, whiteness 80%, sand content 1%; Barium sulfate: white amorphous powder, barium sulfate content 99%, fineness above 200 mesh; wollastonite: light gray fibrous, aspect ratio 10:1, SiO 2 content of 51.75%, CaO content of 48.25%; potassium feldspar: fineness greater than 200 mesh, potassium oxide content of 8.9%; graphit...

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Abstract

The invention provides a high-friction synthetic brake shoe, comprising the following components in parts by weight: 15-16 parts of phenolic resin, 8-9 parts of butadiene-acrylonitrile rubber, 15-17 parts of iron powder, 10-13 parts of sepiolite fibre, 14-17 parts of potassium feldspar, 6-8 parts of wollastonite, 6-8 parts of graphite and 1-2 parts of aluminum oxide. Preferably, the high-friction synthetic brake shoe comprises the components in parts by weight: 15-16 parts of phenolic resin, 8-9 parts of butadiene-acrylonitrile rubber, 15-16 parts of iron powder, 10-11 parts of sepiolite fibre, 19-20 parts of barium sulfate, 16-17 parts of potassium feldspar, 6-7 parts of wollastonite, 6-7 parts of graphite and 1-2 parts of aluminum oxide. The invention also provides a preparation method of the high-friction synthetic brake shoe, and purposes applying the high-friction synthetic brake shoe in a high-power XHN5 locomotive.

Description

technical field [0001] The invention relates to a synthetic brake shoe, in particular to a synthetic brake shoe with high friction coefficient which can be used for a high-power XHN5 locomotive and its preparation method and application. Background technique [0002] Most of the brake shoes for rail vehicles use cast iron brake shoes. Because the friction coefficient of cast iron brake shoes does not match the adhesion coefficient between the wheel and rail, the braking efficiency is low, and it is easy to melt during frequent braking, resulting in seizure and burning. car accident. [0003] High-friction-coefficient synthetic brake shoes (hereinafter referred to as high-friction synthetic brake shoes) have a high friction coefficient, lower brake shoe pressure, and higher braking efficiency. However, when the existing high-friction synthetic brake shoes are used in high-power locomotives, the friction performance is not stable enough, the friction body is easy to break and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02F16D65/02B61H7/00
Inventor 裴顶峰张国文党佳贺春江
Owner METALS & CHEM RES INST CHINA ACAD OF RAILWAY SCI
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