Preparation method of friction material of yaw brake pad

A technology of friction material and production method, which is applied in the direction of friction linings, chemical instruments and methods, and other chemical processes, can solve the problems that cannot be used in heavy machinery braking systems, etc., achieve good braking effect, improve friction coefficient, and water resistance Strong performance and wear resistance

Active Publication Date: 2014-02-05
贵州新安航空机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology makes it possible to make better ways to stop vehicles with discs or wheels from moving too quickly without causing them getting stuck again after they have stopped rotating very hard due to poor road conditions such as snow piles that may be caused during winter weather. These new products also provide excellent heat dissipation properties while maintaining their strength against impact forces like rocks hitting them more frequently than traditional methods. They can last longer even if damaged because they don't get worn out easily over time.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the performance of conventional heavy machine brakes due to their limitations such as low rigidity or poor abrasion properties caused by metals alone.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for manufacturing a friction material for a yaw brake pad. The raw materials are prepared through the steps of grinding, mixing, hot pressing, vacuum hardening and bonding. The specific steps are as follows:

[0023] Grinding, 30kg of iron powder, 15kg of flake graphite, 8kg of potassium feldspar, 15kg of red copper fiber, 8kg of steel wool fiber, 12kg of organic silicon modified phenolic resin, 5kg of potassium octatitanate, 5kg of antimony sulfide and 1kg of vanadium trioxide Grind them into fine particles with a particle size of 20-100 μm through a metal powder machine;

[0024] Mixing, put the raw materials contained in the grinding in step A into the mixer according to the amount, and the mixing time is 0.5h;

[0025] Hot pressing molding, adding the mixed raw materials in step B into the mold for molding, the molding temperature is 200°C, the pressure is 300kg / m㎡, and the holding time is 1h;

[0026] Vacuum hardening treatment, the friction material made...

Embodiment 2

[0029] Grinding, 35kg of iron powder, 12kg of flake graphite, 10kg of potassium feldspar, 10kg of copper fiber, 10kg of steel wool fiber, 10kg of organic silicon modified phenolic resin, 8kg of potassium octatitanate, 3kg of antimony sulfide and 0.5kg of vanadium trioxide The raw materials are respectively ground into fine particles with a particle size of 20-100 μm by a metal powder machine;

[0030] Mixing, put the raw materials contained in the grinding in step A into the mixer according to the amount, and the mixing time is 0.8h;

[0031] Hot press molding, put the mixed raw materials in step B into the mold for molding, the molding temperature is 230°C, the pressure is 350kg / m㎡, and the holding time is 1.5h;

[0032] Vacuum hardening treatment, the friction material made in step C will be placed in a vacuum machine at a temperature of 350°C for 4.5 hours;

[0033] Bonding, the friction material and the brake pad shell are bonded carefully by hot pressing, the temperature...

Embodiment 3

[0035] Grinding, 40kg of iron powder, 10kg of flake graphite, 12kg of potassium feldspar, 8kg of copper fiber, 13kg of steel wool fiber, 8kg of organic silicon modified phenolic resin, 10kg of potassium octatitanate, 5kg of antimony sulfide and 1kg of vanadium trioxide Grind them into fine particles with a particle size of 20-100 μm through a metal powder machine;

[0036] Mixing, put the raw materials contained in the grinding in step A into the mixer according to the amount, and the mixing time is 1h;

[0037] Hot pressing molding, adding the mixed raw materials in step B into the mold for molding, the molding temperature is 250°C, the pressure is 400kg / m㎡, and the holding time is 2h;

[0038] Vacuum hardening treatment, the friction material made in step C will be placed in a vacuum machine at a temperature of 400°C for 5 hours;

[0039] Bonding, the friction material and the brake pad shell are bonded carefully by hot pressing, the temperature is 300°C, the pressure is 50...

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PUM

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Abstract

The invention discloses a preparation method of a friction material of a yaw brake pad, belonging to the technical field of brake systems. The preparation method comprises the steps of grinding raw materials, wherein the raw materials include the following components in percentage by weight: 30-40% of iron powder, 10-15% of flake graphite, 8-12% of potash feldspar, 8-15% of red copper fiber, 8-13% of steel wool fiber, 8-12% of organosilicone modified phenolic resin, 5-10% of potassium titanate, 2-5% of antimony sulfide and 0.2-1% of vanadium oxide; mixing all the raw materials; carrying out hot press molding; carrying out vacuum hardening treatment; binding. The friction material prepared by using the method is stable in friction coefficient, high in thermal decay stability, strong in water resistance and wear resistance, little in damage to counterparts during braking, particularly suitable for braking middle-large machines, good in braking effect, long in service life, capable of being formed through one-step high-temperature hot pressing, high in degree of mechanization, simplified in production process and high in rate of finished products.

Description

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Claims

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Application Information

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Owner 贵州新安航空机械有限责任公司
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