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A nano-ferromagnetic mine hoist brake shoe formula and its manufacturing method

A mine hoist, nano-magnetic technology, applied in mechanical equipment, slack adjusters, friction linings, etc., can solve the problems that the magnetic field control does not have material conditions and technical basis in the braking friction process, and achieve braking efficiency and reliability. Improved heat resistance, good heat resistance, effect of improving heat resistance

Inactive Publication Date: 2016-07-06
中国矿业大学盱眙矿山装备与材料研发中心 +1
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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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  • A nano-ferromagnetic mine hoist brake shoe formula and its manufacturing method
  • A nano-ferromagnetic mine hoist brake shoe formula and its manufacturing method
  • A nano-ferromagnetic mine hoist brake shoe formula and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 8 parts of nitrile modified phenolic resin, 3 parts of nitrile rubber; 10 parts of glass fiber, 7 parts of FKF fiber, 15 parts of sepiolite fiber, 3 parts of aramid fiber; 2 parts of graphite, 6 parts of wollastonite, feldspar powder 8 parts, 5 parts of zeolite, 12 parts of barium sulfate; 2 parts of friction powder, 15 parts of carbon-coated iron nano-magnetic particles (25nm-55nm), 2 parts of silane coupling agent, and 2 parts of release agent.

Embodiment 2

[0043] 12 parts of nitrile modified phenolic resin, 3 parts of nitrile rubber; 15 parts of glass fiber, 8 parts of FKF fiber, 8 parts of sepiolite fiber, 4 parts of aramid fiber; 3 parts of graphite, 10 parts of wollastonite, feldspar powder 8 parts, 6 parts of zeolite, 9 parts of barium sulfate; 3 parts of friction powder, 8 parts of carbon-coated nickel-zinc ferrite nano-magnetic particles (30nm-50nm), 1 part of silane coupling agent, and 2 parts of release agent.

Embodiment 3

[0045] 15 parts of nitrile modified phenolic resin, 3 parts of nitrile rubber; 10 parts of glass fiber, 13 parts of FKF fiber, 8 parts of sepiolite fiber, 3 parts of aramid fiber; 4 parts of graphite, 12 parts of wollastonite, feldspar powder 8 parts, 5 parts of zeolite, 9 parts of barium sulfate; 2 parts of friction powder, 5 parts of carbon-coated nickel nano-magnetic particles (30nm-60nm), 1 part of silane coupling agent, and 2 parts of release agent.

[0046] Such as figure 1 Shown: The production method of the nano-ferromagnetic mine hoist brake shoe, all raw materials are dried in a drying box at a temperature of 30°C for 6 hours; the fiber materials are made into short fibers; the block materials are processed by a pulverizer , crushed into fine powder; put the material into the mixer for high-speed mixing for 20-30 minutes; ultrasonically disperse the nano-ferromagnetic particles for 30-50 min; add the nano-ferromagnetic particles after ultrasonic dispersion to the pow...

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Abstract

The invention discloses a nano-ferromagnetic mine hoist brake shoe formula and a manufacturing method thereof. The material formula consists of the following components: nitrile modified phenolic resin, nitrile rubber, glass fiber, FKF fiber, sepiolite fiber, aromatic Fiber, graphite, wollastonite, feldspar powder, zeolite, friction powder, barium sulfate, nano ferromagnetic particles, silane coupling agent, mold release agent. The production method includes crushing, mixing, hot pressing, magnetizing and heat treatment. The beneficial effect is that the nano ferromagnetic brake shoe exhibits stable tribological performance and good heat resistance, and is better adapted to extreme braking working conditions such as high speed and heavy load. Nano-ferromagnetic particles improve the heat resistance and toughness of the brake shoe, and make the magnetized brake shoe have higher remanence, which provides the most basic material conditions for the magnetic field control in the braking friction process. Nano-ferromagnetic brake shoes can maintain magnetism for a long time after being magnetized, and the braking process can affect and adjust the friction behavior without an external magnetic field.

Description

technical field [0001] The invention relates to a brake shoe material formula of a hoist, in particular to a nanometer ferromagnetic mine hoist brake shoe formula and a manufacturing method thereof. Background technique [0002] With the development of science and technology, the power, speed and load of all kinds of mining machinery and equipment are constantly increasing. The academic performance puts forward higher technical requirements. [0003] Traditional mine hoist brake shoes generally use asbestos friction materials and asbestos-free organic friction materials. Due to the disadvantages of poor thermal conductivity, unstable friction coefficient, large braking noise, and strong carcinogenicity, asbestos friction materials are gradually eliminated. At present, for most non-asbestos friction materials, under extreme braking conditions such as high speed and heavy load, their friction performance is often unstable, and brake friction failure often occurs, which is lik...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66D5/00F16D65/78F16D69/02
Inventor 鲍久圣阴妍胡东阳刘金革刘同冈刘书进刘阳
Owner 中国矿业大学盱眙矿山装备与材料研发中心
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