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Preparation method of potassium titanate and application of potassium titanate in friction material

A friction material, potassium titanate technology, applied in the direction of titanate, friction lining, alkali metal titanate, etc., can solve the problems of low thermal fading resistance, unstable braking at high temperature, and loud braking noise , to achieve good wear resistance, good brake imaging ability, and reduce the effect of brake imaging ability

Active Publication Date: 2015-12-16
句容亿格纳米材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: In order to solve the technical problems of the existing brake pads such as high wear rate, high braking noise, low thermal fading resistance, and unstable braking at high temperature, the present invention provides a preparation method of potassium titanate, and Its application in friction materials is provided

Method used

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  • Preparation method of potassium titanate and application of potassium titanate in friction material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Mix 80g of titanium dioxide and 1.5g of potassium carbonate for 15-20 minutes, stir evenly and transfer to the pusher pit;

[0013] First, heat the furnace temperature from room temperature, raise it to 300-320°C in 2 hours, then raise the temperature again, raise it to 700-720°C in 6 hours, keep it warm for 8 hours, then heat it up to 900-920°C for 4 hours, and keep it warm for 4 hours;

[0014] Then start to cool down, first naturally cool down to 800°C, keep for 2 hours; then naturally cool down to 200°C, keep for 2 hours, and finally cool down to room temperature naturally.

[0015] Then take out and pulverize, first coarse powder, control the particle diameter to be less than 1 cm; ball mill the material after coarse powder for 10-20 hours, after ball milling, heat treatment at 700°C-800°C for 1 hour to obtain potassium titanate.

Embodiment 2

[0017] Mix 80g of titanium dioxide and 1g of potassium carbonate for 15 to 20 minutes, stir evenly and transfer to the pusher pit;

[0018] First, heat the furnace temperature from room temperature, raise it to 300-320°C in 2 hours, then raise the temperature again, raise it to 700-720°C in 6 hours, keep it warm for 8 hours, then heat it up to 900-920°C for 4 hours, and keep it warm for 4 hours;

[0019] Then start to cool down, first naturally cool down to 800°C, keep for 2 hours; then naturally cool down to 200°C, keep for 2 hours, and finally cool down to room temperature naturally.

[0020] Then take out and pulverize, first coarse powder, control the particle diameter to be less than 1 cm; ball mill the material after coarse powder for 10-20 hours, after ball milling, heat treatment at 700°C-800°C for 1 hour to obtain potassium titanate.

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Abstract

The invention discloses a preparation method of potassium titanate. According to the preparation method, potassium carbonate and titanium dioxide are mixed for 15-20 minutes, uniformly stirred and transferred to a push slab kiln; firstly, the mixture is heated in the kiln from the room temperature, heated to 300 DEG C-320 DEG C in two hours, then heated again to 700 DEG C-720 DEG C in 6 hours, kept at the temperature for 8 hours, then heated to 900 DEG C-920 DEG C in 4 hours and kept at the temperature for 4 hours; then the mixture is cooled to the normal temperature, taken out and roughly smashed firstly, and the diameters of particles are controlled to be smaller than 1 cm; the roughly smashed material is subjected to ball milling for 10-20 hours, a product is subjected to heat treatment at the temperature of 700 DEG C-800 DEG C for one hour after ball milling, and potassium titanate is obtained. The potassium titanate prepared with the method has stable friction performance after being used in the friction material and has good abrasion performance, speed characteristic and heat recession resistance and better capability of reducing brake noise.

Description

technical field [0001] The invention relates to a preparation method of potassium titanate and its application in friction materials. Background technique [0002] Earlier car brake pads were asbestos-type brake pads, but it is now found that asbestos has been confirmed by the medical profession to be a carcinogen. Every time you brake, the brake pads will emit millions of asbestos fibers into the air, and the needle-like fibers can easily enter the lungs and stay there, causing irritation, which can eventually lead to the occurrence of lung cancer, but in addition to endangering health In addition to other factors, there is another important problem in asbestos brake pads. Because asbestos is heat-insulating, its thermal conductivity is particularly poor. After repeated use of the brakes, the heat will accumulate in the brake pads. After the brake pads become hot, their braking performance will change, and the same friction and braking force will be produced. More braking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/00F16D69/02C09K3/14
CPCC01G23/005F16D69/025F16D2200/0065
Inventor 潘峥嵘
Owner 句容亿格纳米材料厂
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