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Metal sulfide ceramic friction material and preparation method thereof

A metal sulfide and friction material technology, applied in the field of friction materials, can solve the problems of complex production process, high production cost, and low thermal stability of asbestos friction materials, and achieves good running-in performance, convenient operation and easy operation. The effect of industrial production

Inactive Publication Date: 2016-05-11
西安艾菲尔德复合材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a metal sulfide ceramic friction material to solve the problems of low thermal stability of asbestos friction material, complex production process and high production cost of asbestos-free friction material

Method used

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  • Metal sulfide ceramic friction material and preparation method thereof
  • Metal sulfide ceramic friction material and preparation method thereof
  • Metal sulfide ceramic friction material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1. Weigh respectively according to weight percentage: 1g of sulfur powder, 11g of tin powder, 10g of antimony trisulfide, 5g of alumina powder, 40g of iron and aluminum powder, 25g of steel fiber, 3g of molybdenum disulfide, and 5g of graphite;

[0025] Step 2. Mix the sulfur powder, tin powder, antimony trisulfide, alumina powder and iron-aluminum powder weighed in step 1, put them into a ball mill and mill them for 2 hours, take them out, add the steel fiber and disulfide disulfide weighed in step 1 Molybdenum, graphite, stir to make it evenly mixed;

[0026] Step 3. Add a molding agent to the raw material obtained in step 2, stir evenly, dry press molding on a tablet machine at a molding pressure of 280 MPa, and then dry at 80°C for 2 hours;

[0027] Step 4. After burying the raw material obtained in Step 3 with carbon powder, put it into a thyristor high-temperature furnace for normal-pressure sintering at 450° C., and cool naturally to obtain the finished prod...

Embodiment 2

[0029] Step 1. Weigh respectively according to weight percentage: 5g of sulfur powder, 3g of tin powder, 20g of antimony trisulfide, 9g of alumina powder, 30g of iron and aluminum powder, 28g of steel fiber, 2g of molybdenum disulfide, and 3g of graphite;

[0030] Step 2. Mix the sulfur powder, tin powder, antimony trisulfide, alumina powder and iron-aluminum powder weighed in step 1, put them into a ball mill and mill them for 2h to 3h, take them out, add the steel fiber weighed in step 1, Molybdenum disulfide, graphite, stir to make it evenly mixed;

[0031] Step 3. Add a molding agent to the raw material obtained in step 2, stir evenly, dry press molding on a tablet machine at a molding pressure of 360 MPa, and then dry at 60°C for 3 hours;

[0032] Step 4. After burying the raw material obtained in Step 3 with carbon powder, put it into a thyristor high-temperature furnace for normal pressure sintering at a temperature of 600° C., and cool naturally to obtain the finished ...

Embodiment 3

[0034] Step 1. Weigh respectively according to weight percentage: 3g of sulfur powder, 7g of tin powder, 15g of antimony trisulfide, 5g of alumina powder, 35g of iron and aluminum powder, 30g of steel fiber, 2g of molybdenum disulfide, and 3g of graphite;

[0035] Step 2. Mix the sulfur powder, tin powder, antimony trisulfide, alumina powder and iron-aluminum powder weighed in step 1, put them into a ball mill and mill them for 2 hours, take them out, add the steel fiber and disulfide disulfide weighed in step 1 Molybdenum, graphite, stir to make it evenly mixed;

[0036] Step 3. Add a molding agent to the raw material obtained in step 2, stir evenly, dry press molding on a tablet machine at a molding pressure of 320 MPa, and then dry at a temperature of 70°C for 3 hours;

[0037] Step 4. After burying the raw material obtained in Step 3 with carbon powder, put it into a thyristor high-temperature furnace for normal-pressure sintering at a temperature of 500° C., and cool natu...

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Abstract

The invention discloses a metal sulfide ceramic friction material. The metal sulfide ceramic friction material is prepared from, by weight, sulfur powder, tin powder, antimony trisulfide, alumina powder, iron and aluminum powder, steel fibers, molybdenum disulfide and graphite. The invention further discloses a preparation method of the metal sulfide ceramic friction material. The preparation method specifically comprises the steps that the needed raw materials are weighed, part of the raw materials are processed through ball milling, all the raw materials are mixed to be uniform and then processed through dry pressing molding, normal pressure sintering is performed, and then the metal sulfide ceramic friction material is prepared. The metal sulfide ceramic friction material has the larger heat capacity and has the high enough mechanical strength and the good running-in performance at high temperature. According to the metal sulfide ceramic friction material and the preparation method thereof, the preparation technology is simple, the raw material sources are wide, operation is convenient, and industrial production is easy to achieve.

Description

technical field [0001] The invention belongs to the technical field of friction materials, and in particular relates to a metal sulfide ceramic friction material, and also relates to a preparation method of the metal sulfide ceramic friction material. Background technique [0002] The braking system is an important part of modern automobiles. It uses the friction of friction materials to convert the kinetic energy of the automobile into heat energy and other energy, so as to achieve the effect of braking. In the past few years, due to the rapid development of my country's automobile industry, people have continuously put forward new requirements for the materials of brake pads used in braking systems to meet the needs of automobile development. [0003] Before the 1970s, the main materials of automobile friction materials used in various countries in the world were basically asbestos materials. Asbestos friction material has excellent friction performance, and has a wide ra...

Claims

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Application Information

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IPC IPC(8): C04B35/515C04B35/63C04B35/622
Inventor 齐海港
Owner 西安艾菲尔德复合材料科技有限公司
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