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Formula and preparation method of mine hoist soft-magnetism brake shoe material

A technology of mine hoist and manufacturing method, which is applied in the direction of chemical instruments and methods, and other chemical processes, can solve the problem that the magnetic field control in the braking friction process does not have the material conditions and technical foundation, and achieve the improvement of braking efficiency and reliability , The production method is simple, and the effect of stabilizing the friction and wear performance

Active Publication Date: 2014-07-23
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the good controllability of the magnetic field, if the positive influence of the magnetic field on the braking friction behavior can be fully utilized and applied to the active control of the braking friction process, the braking performance and braking performance of the friction brake can be significantly improved. Reliability, but because the existing brake shoe materials are non-metallic and non-ferromagnetic materials, the magnetic field control of the braking friction process does not yet have the most basic material conditions and technical basis

Method used

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  • Formula and preparation method of mine hoist soft-magnetism brake shoe material
  • Formula and preparation method of mine hoist soft-magnetism brake shoe material
  • Formula and preparation method of mine hoist soft-magnetism brake shoe material

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Effect test

Embodiment 1

[0030] The organic binder is 12 parts of cashew nut shell oil modified phenolic resin (the cashew nut shell oil modified phenolic resin is a kind of modified phenolic resin), plus 4 parts of nitrile rubber powder; reinforcing fiber: 12 parts of glass fiber, aramid 4 parts of fiber, 18 parts of FKF fiber; friction modifier: 3 parts of graphite, 2 parts of zircon, 10 parts of feldspar, 15 parts of barite; filler: 6 parts of cashew nut shell oil friction powder, zirconium coupling agent 2 parts (zirconium coupling agent is a kind of coupling agent), 2 parts of release agent; soft magnetic material: 10 parts of hydroxyl iron powder.

Embodiment 2

[0032] The organic binder is 12 parts of nitrile modified phenolic resin (nitrile modified phenolic resin is a kind of modified phenolic resin), plus 4 parts of nitrile rubber powder; reinforcing fiber: 13 parts of glass fiber, sepiolite fiber 9 parts, FKF fiber 12 parts; friction modifier: graphite 3 parts, corundum 2 parts, feldspar 10 parts, barite 15 parts; filler: cashew nut shell oil friction powder 6, silane coupling agent (silane coupling agent It is a kind of coupling agent) 2 parts, release agent 2 parts; soft magnetic material: nickel zinc ferrite 10 parts.

Embodiment 3

[0034] The organic binder is cashew nut shell oil modified phenolic resin (the cashew nut shell oil modified phenolic resin is a kind of modified phenolic resin) 12 parts, plus 4 parts of styrene-butadiene rubber powder; reinforcing fiber: 12 parts of sepiolite fiber, 4 parts of aramid fiber, 12 parts of FKF fiber, 8 parts of acicular wollastonite; friction modifier: 3 parts of graphite, 10 parts of feldspar, 15 parts of barite; filler: 6 parts of cashew nut shell oil friction powder, silane 2 parts of coupling agent (silane coupling agent is a kind of coupling agent), 2 parts of release agent; soft magnetic material: 10 parts of manganese zinc ferrite.

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Abstract

The invention discloses a formula and preparation method of a mine hoist soft-magnetism brake shoe material. The material formula consists of the following ingredients in parts by weight: 10-20 parts of organic binder, 15-50 parts of reinforcing fibers, 10-50 parts of friction performance modifier, 3-10 parts of filler and 5-30 parts of soft magnetic material. The preparation method comprises the steps of crushing, mixing, carrying out hot-press forming, carrying out heat treatment and the like. The material formula has the beneficial effects that a mine hoist soft-magnetism brake shoe shows stable friction and wear properties and good heat resistance and is better adaptable to extreme braking conditions, such as high speed and heavy load; due to the added soft magnetic material, the coefficient of friction of the hoist brake shoe is increased, and the wear rate of the hoist brake shoe is reduced, so that the brake shoe has relatively high magnetic conductivity and magnetic induction intensity, and the most basic material conditions are provided for magnetic field control during braking friction. The preparation method of the mine hoist soft-magnetism brake shoe is relatively simple and does not need beforehand magnetizing, and a friction behavior can be regulated and controlled through adjusting the size of magnetism by an external magnetic field during braking.

Description

technical field [0001] The invention relates to a brake shoe material formula, in particular to a mine hoist soft magnetic brake shoe material formula and a manufacturing method thereof. Background technique [0002] With the development of society and the progress of science and technology, people have higher and higher requirements for the safety, reliability and environmental protection of the braking process. Traditional friction materials cannot fully adapt to various complex working conditions of mining machinery. Functional friction materials not only have good physical and mechanical properties and friction properties, but also have some specific effects (such as: magnetic conduction, conduction, light, etc.), which can To make up for the lack of performance of traditional friction materials is an important development trend of high-performance friction materials and has huge market potential. [0003] Most of the traditional mine hoist brake shoes use asbestos fric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14
Inventor 鲍久圣胡东阳阴妍刘金革刘同冈刘书进刘阳
Owner CHINA UNIV OF MINING & TECH
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