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Preparation method of a high temperature resistant copper-based metallurgical friction material

A friction material and high temperature resistance technology, applied in the field of material processing, can solve the problems of long order cycle and high cost, and achieve the effect of reducing bonding force, improving high temperature resistance and excellent high temperature resistance.

Active Publication Date: 2019-10-15
广东中恒安检测评价有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relying on imported products is not only costly, the order cycle is long, but also controlled by others, it is necessary to develop high-performance brake pads with independent intellectual property rights to replace imported products as soon as possible to fill the urgent need of the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] In terms of parts by weight, weigh 70 parts of copper powder, 6 parts of nickel powder, 10 parts of tin powder, 3 parts of molybdenum powder, 2 parts of titanium powder, 2 parts of alumina, 3 parts of silicon oxide and 1 part of molybdenum disulfide. In a ball mill tank, ball mill at 200r / min for 3h, pass through a 200-mesh sieve to obtain matrix powder, put the matrix powder in a mold, press at 3MPa for 3min, pressurize at 0.5MPa / min to 200MPa, hold the pressure Press for 3 minutes. After the pressing is completed, demould the billet and place it in a muffle furnace. After pre-sintering at 200°C for 1 hour, the temperature is raised to 950°C at 8°C / min. Calcined material is obtained; the calcined material is pulverized and ball-milled, and ball-milled powder is obtained through a 200-mesh sieve. In parts by weight, 45 parts by weight of 1% sodium tungstate aqueous solution, 10 parts of ball-milled powder, 6 parts of carbon nanotubes and Put 10 parts of ethylene glycol ...

example 2

[0021] In parts by weight, weigh 75 parts of copper powder, 7 parts of nickel powder, 12 parts of tin powder, 4 parts of molybdenum powder, 2 parts of titanium powder, 2 parts of alumina, 4 parts of silicon oxide and 1 part of molybdenum disulfide. In a ball mill tank, mill at 250r / min for 4 hours, pass through a 200-mesh sieve to obtain matrix powder, place the matrix powder in a mold, press at 4MPa for 4min, pressurize at 0.5MPa / min to 200MPa, and hold the pressure Press for 4 minutes. After the pressing is completed, demould the billet and place it in a muffle furnace. After pre-sintering at 250°C for 1 hour, the temperature is raised to 980°C at 8°C / min. After heat preservation and calcination for 4 hours, stand and cool to room temperature Calcined material is obtained; the calcined material is pulverized and ball-milled, and ball-milled powder is obtained through a 200-mesh sieve. In parts by weight, 47 parts by weight of 1% sodium tungstate aqueous solution, 12 parts of ...

example 3

[0023]In terms of parts by weight, weigh 80 parts of copper powder, 8 parts of nickel powder, 15 parts of tin powder, 5 parts of molybdenum powder, 3 parts of titanium powder, 3 parts of alumina, 5 parts of silicon oxide and 2 parts of molybdenum disulfide. In a ball milling tank, mill at 300r / min for 5h, pass through a 200-mesh sieve to obtain matrix powder, put the matrix powder in a mold, press at 5MPa for 5min, pressurize at 0.5MPa / min to 200MPa, hold the pressure Press for 5 minutes. After the pressing is completed, the blank is demoulded and placed in a muffle furnace. After pre-sintering at 300°C for 2 hours, the temperature is raised to 1000°C at 8°C / min. Calcined material is obtained; the calcined material is pulverized and ball-milled, and ball-milled powder is obtained through a 200-mesh sieve. In parts by weight, 50 parts by weight of 1% sodium tungstate aqueous solution, 15 parts of ball-milled powder, 8 parts of carbon nanotubes and Put 12 parts of ethylene glyco...

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Abstract

The invention relates to a preparation method of a high-temperature-resistant copper-based metallurgical friction material, which belongs to the technical field of material processing. The present invention weighs copper powder, nickel powder, tin powder, molybdenum powder, titanium powder, aluminum oxide, silicon oxide and molybdenum disulfide and puts them in a ball mill tank, ball mills and sieves to obtain matrix powder, and puts the matrix powder in a mould, Press, demould to get the billet and put it in the muffle furnace. After heat preservation and calcination, let it stand and cool to room temperature to get the calcined material; crush the calcined material and ball mill, sieve to get the ball mill powder, weigh the sodium tungstate aqueous solution, ball mill powder, Put carbon nanotubes and ethylene glycol in a beaker, ultrasonically disperse to obtain a dispersion, and add hydrochloric acid dropwise to the dispersion according to the mass ratio. After the addition is completed, heat in an oil bath, crystallize and filter to obtain a filter The cake is vacuum-dried, and the dried filter cake is collected and placed in a tube-type atmosphere furnace for heat preservation and calcination to prepare a high-temperature-resistant copper-based metallurgical friction material.

Description

technical field [0001] The invention relates to a preparation method of a high-temperature-resistant copper-based metallurgical friction material, which belongs to the technical field of material processing. Background technique [0002] High-speed railway is one of the advanced integrated technologies that our country is ahead of the developed countries in the world. The mileage currently in operation has reached 10,000 kilometers, and the high-speed railway is more than 10,000 kilometers under construction; it is expected that by 2021, the total mileage of China's high-speed railway will exceed 30 Kilometers, ranking first in the world, is the country with the fastest development of high-speed railways, the most complete system technology, the strongest integration capabilities, the longest operating mileage, the highest operating speed, and the largest scale under construction. Brake pads determine the speed of trains, emergency Braking capacity, a key braking component f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/02C22C32/00C22C1/05B22F1/00
CPCB22F1/0003C22C1/05C22C9/02C22C26/00C22C32/00B22F2999/00B22F2998/10C22C2026/002B22F1/145B22F3/1007B22F2201/03B22F2009/043B22F3/10B22F3/02
Inventor 高峰梁锋马小良季美陈倩
Owner 广东中恒安检测评价有限公司