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Mine hoist hard magnetic brake shoe material formula and producing thereof

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 problems of lack of material conditions and technical foundation for magnetic field control, achieve improved braking performance and reliability, and stabilize friction and wear performance, the effect of increasing the coefficient of friction

Active Publication Date: 2014-10-15
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 of the hoist, 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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  • Mine hoist hard magnetic brake shoe material formula and producing thereof
  • Mine hoist hard magnetic brake shoe material formula and producing thereof
  • Mine hoist hard magnetic brake shoe material formula and producing thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 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: 18 parts of glass fiber, aramid 4 parts of fiber, 12 parts of sepiolite fiber; friction modifier: 3 parts of graphite, 2 parts of zircon, 10 parts of feldspar, 10 parts of barite; filler: 6 parts of cashew nut shell oil friction powder, zirconium coupler 2 parts of coupling agent (zirconium coupling agent is a kind of coupling agent), 2 parts of release agent; hard magnetic material: 15 parts of NdFeB magnetic powder.

Embodiment 2

[0035] The organic binder is 12 parts of cashew nut shell oil modified phenolic resin, plus 4 parts of styrene-butadiene rubber powder; reinforcing fiber: 18 parts of glass fiber, 4 parts of aramid fiber, 12 parts of FKF fiber; friction performance modifier: 3 parts of graphite , wollastonite 6 parts, feldspar 8 parts, barite 8 parts; filler: cashew nut shell oil friction powder 6 parts, zirconium coupling agent 2 parts, release agent 2 parts; hard magnetic material: barium ferrite magnetic powder 15 servings.

Embodiment 3

[0037] The organic binder is 12 parts of nitrile rubber modified phenolic resin (nitrile rubber modified phenolic resin is a kind of modified phenolic resin), plus 4 parts of nitrile rubber powder; reinforced fiber: 13 parts of glass fiber, aramid 4 parts of fiber, 9 parts of sepiolite fiber, 8 parts of FKF fiber; friction modifier: 3 parts of graphite, 2 parts of alumina, 10 parts of feldspar, 10 parts of barite; filler: 6 parts of cashew nut shell oil friction powder , 2 parts of silane coupling agent (silane coupling agent is a kind of coupling agent), 2 parts of release agent; hard magnetic material: 15 parts of strontium ferrite magnetic powder.

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Abstract

The invention discloses a mine hoist hard magnetic brake shoe material formula and a producing method thereof, the mine hoist hard magnetic brake shoe material comprises the following components in parts by weight: 10 to 20 parts of an organic binder, 15 to 50 parts of a reinforcing fiber, 15 to 45 parts of a friction performance regulator, 3 to 10 parts of a filler and 5 to 40 parts of a hard magnetic material. The producing method comprises crushing, mixing, hot pressing forming, magnetizing, heat treatment and surface processing technology and the like. The beneficial effects are that: a mine hoist hard magnetic brake shoe shows stable friction and wear properties and good heat resistance, and is better adapted to high speed and heavy load extreme braking working conditions; the added hard magnetic material increases the friction coefficient and reduces wear rate of the mine hoist brake shoe, the magnetized brake shoe has higher remanent magnetization and provides most basic material conditions for the magnetic field control of the braking friction process. The magnetized mine hoist hard magnetic brake shoe can maintain magnetism for a long term, the friction behavior can be influenced and adjusted in the braking process without an applied magnetic field.

Description

technical field [0001] The invention relates to a material formula of a brake shoe of a hoist, in particular to a material formula of a hard magnetic brake shoe of a mine hoist 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 (magnetic, conductive, luminous, etc.), making up for the traditional The lack of performance of friction materials is an important development trend of high-performance friction materials and has huge market potential. [0003] Most traditional mine hoist brake shoes are made of asbestos f...

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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