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Preparation method of brake molybdenum disulfide-Cu-Fe radical friction material

A technology of molybdenum disulfide and friction materials, which is applied in the direction of friction linings, mechanical equipment, etc., to achieve the effects of controllable sintering temperature, cost saving and simple process

Inactive Publication Date: 2011-04-06
DALIAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the existing problems in the above-mentioned prior art, the purpose of the present invention is to research and design a kind of preparation method of novel brake molybdenum disulfide-Cu-Fe base friction material, thus solve the problem due to the high-speed, high-speed, The development in the direction of heavy load brings problems such as working requirements for friction brake components under harsh conditions such as vacuum, high temperature, high speed, heavy load, corrosive medium and strong radiation.

Method used

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  • Preparation method of brake molybdenum disulfide-Cu-Fe radical friction material

Examples

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Effect test

Embodiment 1

[0027] (1) Manufacturing process:

[0028] Electrolytic copper powder: particle size less than 75μm, Cu purity greater than 99.9%;

[0029] Reduced iron powder: particle size less than 75μm, Fe purity greater than 99.9%;

[0030] Molybdenum disulfide powder: particle size less than 75μm; C purity greater than 99.9%;

[0031] Silica powder: particle size less than 75μm, SiO 2 The purity is greater than 99.9%, etc.

[0032] Manufacturing process:

[0033] According to a certain mass ratio (Cu-Fe: 80%; MoS 2 : 10%; Cr, Mn and SiC, etc.: 10%) Weigh the corresponding powder, and then mechanically mix it evenly;

[0034] Under the pressure of 800MPa, use powder metallurgy compression molding method to press into a 20mm cylindrical compact; put the compact into a stainless steel container with a wall thickness of 2mm, and fill it with protective gas;

[0035] Put the container in the coil of the medium-frequency induction heating power supply, heat and burn for sintering under ...

Embodiment 2

[0040] (1) Manufacturing process:

[0041] Electrolytic copper powder: particle size less than 75μm, Cu purity greater than 99.9%;

[0042] Reduced iron powder: particle size less than 75μm, Fe purity greater than 99.9%;

[0043] Molybdenum disulfide powder: particle size less than 75μm; C purity greater than 99.9%;

[0044] Silica powder: particle size less than 75μm, SiO 2 The purity is greater than 99.9%, etc.

[0045] Manufacturing process:

[0046] According to a certain mass ratio (Cu-Fe: 70%; molybdenum disulfide, MoS 2 : 15%; Cr, Mn and SiC, etc.: 15%) Weigh the corresponding powder, and then mechanically mix it evenly;

[0047] Under the pressure of 900MPa, use the powder metallurgy compression molding method to press into a 20mm cylindrical compact; put the compact into a stainless steel container with a wall thickness of 2mm, and fill it with protective gas;

[0048] Put the container in the coil of the medium-frequency induction heating power supply, heat and...

Embodiment 3

[0053] (1) Manufacturing process:

[0054] Electrolytic copper powder: particle size less than 75μm, Cu purity greater than 99.9%;

[0055] Reduced iron powder: particle size less than 75μm, Fe purity greater than 99.9%;

[0056] Molybdenum disulfide powder: particle size less than 75μm; C purity greater than 99.9%;

[0057] Silica powder: particle size less than 75μm, SiO 2 The purity is greater than 99.9%, etc.

[0058] Manufacturing process:

[0059] According to a certain mass ratio (Cu-Fe: 90%; molybdenum disulfide, MoS 2: 5%; Cr, Mn and SiC, etc.: 5%) Weigh the corresponding powder, and then mechanically mix it evenly;

[0060] Under the pressure of 1000MPa, use the powder metallurgy compression molding method to press into a 20mm cylindrical compact; put the compact into a stainless steel container with a wall thickness of 2mm, and fill it with protective gas;

[0061] Put the container into the coil of the medium-frequency induction heating power supply, heat and...

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Abstract

The invention relates to a preparation method of a brake molybdenum disulfide-Cu-Fe radical friction material, which takes a Cu-Fe radical alloy as a substrate added with a lubricating component of MoS2, a friction component of SiC and alloy components of Mn and Cr to prepare the brake molybdenum disulfide-Cu-Fe radical friction material and comprises the technological steps of: 1. selecting the original auxiliary powder material; 2. proportioning according to the weight; 3. mechanically stirring and uniformly mixing; 4. pressing into a cylindrical pressed shape; 5. placing the pressed shape into a stainless steel container and filling protective gas of hydrogen into a stainless steel container; 6. placing the container into an intermediate-frequency induction heating coil to be heated, stopping heating after heating and preserving the temperature, and cooling to room temperature along a furnace; 7. taking out a sample to be dried after ultrasonic cleaning; and 8. detecting the property of the sample. The synthesis method of sampling induction heating sintering and burning reactions has the advantage that the prepared molybdenum disulfide-Cu-Fe radical friction material with good brake performance has the characteristics of self-lubrication, moderate frictional factor and less wear rate.

Description

technical field [0001] The preparation method of the braking molybdenum disulfide-Cu-Fe based friction material in the present invention relates to the preparation of a new friction material, more specifically, it relates to the preparation of a braking molybdenum disulfide-Cu-Fe based friction material Preparation. Background technique [0002] At present, friction materials are used in brakes, clutches and friction transmissions of various vehicles and machinery. In these braking devices, the friction performance of the friction material is used to convert the kinetic energy of rotation into heat energy or other forms of energy, thereby braking the rotating device. Friction materials can be divided into two categories: metallic friction materials and non-metallic friction materials. The traditional non-metallic friction material-asbestos friction material has the disadvantages of poor thermal conductivity and heat resistance, polluting the environment and poor high tempe...

Claims

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Application Information

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IPC IPC(8): C22C32/00C22C1/05F16D69/02
Inventor 付传起王宙李斌
Owner DALIAN UNIVERSITY
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