High-density powder metallurgy material for train brake lining

A technology of powder metallurgy and density, applied in the field of powder metallurgy, can solve the problems of frictional thermal stability, heat resistance and wear resistance, poor strength and hardness, low material utilization rate, uneven density, etc., and achieve frictional thermal stability Excellent performance and heat resistance, high material utilization rate, uniform overall density

Inactive Publication Date: 2017-01-11
GUANGXI NANNING ZHICUI SCI TECH CONSULTATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a high-density powder metallurgy material for train brake pads to solve the problem of uneven overall density, low density, friction thermal stability, heat resistance, wear resistance, Poor strength and hardness, low material utilization rate, high production cost and other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0066] The preparation method of the powder metallurgy material for train brake pads with high density comprises the following steps:

[0067] S1: Copper powder, zinc powder, manganese iron powder, iron powder, nickel powder, molybdenum disulfide powder, yttrium powder, titanium carbide powder, tantalum carbide powder, tin powder, silicon dioxide, boron nitride powder, graphite powder , glycerin, stearic acid, glass fiber, and basalt fiber were added to the mixer, and the mixture was stirred for 9-15min at a speed of 123-356r / min to prepare mixture A;

[0068] S2: Add polycarbonate, carboxymethyl cellulose, polyacrylamide, degassing agent, leveling agent, coupling agent, adhesive, reinforcing agent, cutting agent, lubricant to the mixer at a speed of 210-420r Stir for 14-21min under / min to prepare mixture B;

[0069] S3: The mixture A prepared in step S1, the mixture B prepared in step S2, paraffin, silicon nitride, glycidoxypropyltrimethoxysilane, manganous sulfide, silicon...

Embodiment 1

[0079] A high-density powder metallurgy material for train brake pads, including the following raw materials in units of weight: 1200 parts of copper powder, 45 parts of zinc powder, 22 parts of ferromanganese ore powder, 20 parts of iron powder, 28 parts of nickel powder, Molybdenum disulfide powder 23 parts, yttrium powder 20 parts, titanium carbide powder 24 parts, tantalum carbide powder 16 parts, tin powder 16 parts, silicon dioxide 8 parts, boron nitride powder 15 parts, graphite powder 10 parts, glycerin 26 parts , 14 parts of stearic acid, 20 parts of glass fiber, 9 parts of basalt fiber, 8 parts of polycarbonate, 16 parts of carboxymethyl cellulose, 13 parts of polyacrylamide, 23 parts of paraffin, 8 parts of silicon nitride, epoxypropylene 9 parts of oxypropyltrimethoxysilane, 12 parts of manganous sulfide, 7 parts of silicon carbide, 5 parts of butylated amino resin, 0.8 parts of degassing agent, 0.7 parts of leveling agent, 0.9 parts of coupling agent, adhesive 2.4...

Embodiment 2

[0112] A high-density powder metallurgy material for train brake pads, including the following raw materials in units of weight: 752 parts of copper powder, 35 parts of zinc powder, 15 parts of ferromanganese ore powder, 15 parts of iron powder, 24 parts of nickel powder, Molybdenum disulfide powder 17 parts, yttrium powder 13 parts, titanium carbide powder 18 parts, tantalum carbide powder 14 parts, tin powder 13 parts, silicon dioxide 5 parts, boron nitride powder 12 parts, graphite powder 7 parts, glycerin 23 parts , 9 parts of stearic acid, 14 parts of glass fiber, 6 parts of basalt fiber, 7 parts of polycarbonate, 14 parts of carboxymethyl cellulose, 8 parts of polyacrylamide, 13 parts of paraffin, 6 parts of silicon nitride, epoxypropylene 5 parts of oxypropyltrimethoxysilane, 10 parts of manganese sulfide, 6 parts of silicon carbide, 4 parts of butylated amino resin, 0.6 parts of degassing agent, 0.5 parts of leveling agent, 0.6 parts of coupling agent, adhesive 1.4 par...

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PUM

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Abstract

The invention discloses a high-density powder metallurgy material for a train brake lining. The high-density powder metallurgy material comprises following raw materials including copper powder, zinc powder, ferrous manganese ore powder, iron powder, nickel powder, molybdenum disulfide powder, yttrium powder, titanium carbide powder, tantalum carbide powder, tin powder, silicon dioxide, boron nitride powder, graphite powder, glycerol, stearic acid, glass fiber, basalt fiber, polycarbonate, carboxymethylcellulose, polyacrylamide, a degassing agent, a flatting agent, a coupling agent, a binding agent, a reinforcing agent, a cutting agent, a lubricating agent, paraffin wax, silicon nitride, glycidylpropyltrimethoxy silane, manganous sulphide, silicon carbide, butylated amino resin, a dispersing agent, an adjusting agent, inhibitor, a chain extender, an intercalate agent, a compatilizer, diluents, a stabilizing agent, a bridging agent, a toughening agent, stabilizer and a terminating agent. Through the specific component matching, the high-density powder metallurgy material for the train brake lining is uniform in overall density, high in density, good in abrasion resistance, strength and hardness and high in material utilization rate.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of powder metallurgy, and in particular relates to a high-density powder metallurgy material for train brake pads. [0003] 【Background technique】 [0004] At present, the railway is an important infrastructure of the country, the main artery of the national economy and a means of mass transportation. In order to ensure the high-speed and safe operation of high-speed EMUs, a stable and good braking system must be available, and the brake pads are the key components and vulnerable parts of the high-speed train braking system. With the continuous improvement of the running speed of high-speed EMUs, the braking load of the train has also increased significantly. During braking, the brake pads convert huge kinetic energy into heat energy through friction. Therefore, the brake pad braking material should have high mechanical strength. Good heat resistance and thermal conductivity, stable friction propert...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F3/02B22F3/10B22F3/24B22F5/00
CPCB22F1/0003B22F3/02B22F3/1007B22F3/24B22F5/00B22F2003/248
Inventor 莫肯堂
Owner GUANGXI NANNING ZHICUI SCI TECH CONSULTATION CO LTD
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