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Modifying method of potassium titanate fiber for carbon-based ceramic friction material

A technology of potassium titanate fiber and friction material, applied in the field of raw material processing of carbon-based ceramic friction material, can solve the problems of low safety, poor quality of friction material, different ratio of raw materials, etc. High temperature resistance and improved safety effect

Active Publication Date: 2015-11-25
WANSHAN SPECIAL ZONE HONG AN FRICTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since there are many preparation methods of potassium titanate fibers in the prior art, and the quality of the potassium titanate fibers prepared by various methods is also different, which leads to the application of potassium titanate fibers in the field of friction materials. The performance is inconsistent, which leads to the friction coefficient and thermal stability of the friction material being affected during the preparation process of the friction material, resulting in poor quality and low safety of the prepared friction material
[0003] At the same time, due to its excellent properties, ceramic friction materials have been widely promoted and applied in recent years. However, ceramic friction materials in the prior art have different raw material quality, different raw material ratios, and different preparation methods. etc., will cause the quality of ceramic friction materials to be different, and for ceramic friction materials with poor raw material properties, the safety of ceramic friction materials will be affected. quality, which has become another breakthrough in ceramic friction materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for modifying carbon-based ceramic friction materials with potassium titanate fibers, comprising the following steps:

[0022] (1) Put potassium titanate fiber and clarified lime water at a mass ratio of 1:5, place it at a temperature of 100°C, and stir it at a stirring speed of 100r / min for 1min, then add potassium titanate fiber to it 0.1 times of gutter oil, 0.3 times of rapeseed oil, 0.3 times of pine oil, and adjust the temperature to 70°C, stirring at 400r / min for 3 minutes, and then place it in an ultrasonic processor for 20 minutes;

[0023] (2) Add the composite alkali catalyst to the material processed in step 1, and use ultrasonic treatment for 10s, then add potassium monotitanate and / or potassium dititanate and / or potassium tetratitanate and / or octane Potassium titanate, the addition amount is 20g per liter of clarified lime water, and diesel oil 3 times that of pine oil is added to it, and it is placed under a vacuum of 0.02MPa, treated with ultras...

Embodiment 2

[0030] A method for modifying carbon-based ceramic friction materials with potassium titanate fibers, comprising the following steps:

[0031] (1) Put potassium titanate fiber and clarified lime water at a mass ratio of 3:9, place it at a temperature of 130°C, and stir it at a stirring speed of 150r / min for 5 minutes, then add potassium titanate fiber to it 0.3 times of gutter oil, 0.5 times of rapeseed oil, 0.4 times of pine oil, and adjust the temperature to 90°C, stirring at 600r / min for 10 minutes, and then place it in an ultrasonic processor for 30 minutes;

[0032] (2) Add the composite alkali catalyst to the material processed in step 1, and treat it with ultrasonic waves for 20s, then add potassium monotitanate and / or potassium dititanate and / or potassium tetratitanate and / or octane Potassium titanate, the addition amount is 30g per liter of clarified lime water, and diesel oil 7 times that of pine oil is added to it, and it is placed under a vacuum of 0.08MPa, ultraso...

Embodiment 3

[0039] A method for modifying carbon-based ceramic friction materials with potassium titanate fibers, comprising the following steps:

[0040] (1) Put potassium titanate fiber and clarified lime water at a mass ratio of 2:7, place it at a temperature of 120°C, and stir it at a stirring speed of 130r / min for 4 minutes, then add potassium titanate fiber to it 0.2 times of gutter oil, 0.4 times of rapeseed oil, 0.35 times of pine oil, and adjust the temperature to 80°C, stirring at 500r / min for 7 minutes, and then place it in an ultrasonic processor for 25 minutes;

[0041](2) Add the composite alkali catalyst to the material processed in step 1, and treat it with ultrasonic wave for 15s, then add potassium monotitanate and / or potassium dititanate and / or potassium tetratitanate and / or octane Potassium titanate, the addition amount is 40g per liter of clarified lime water, and diesel oil 5 times the amount of pine oil is added to it, and it is placed under a vacuum of 0.06MPa, tre...

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Abstract

The invention relates to the technical field of raw material treatment of a carbon-based ceramic friction material, in particular to a modifying method of potassium titanate fiber for the carbon-based ceramic friction material. The modifying method comprises the following steps of pretreating the potassium titanate fiber by clarification limewater, using trench oil, vegetable oil and pine oil, and performing ultrasonic treatment, so as to enhance the activity of the potassium titanate fiber, and promote the activating degree of the potassium titanate fiber; adding a composite alkaline catalyst, supplementing titanium and potassium elements, adding pine oil and diesel oil, and performing ultrasonic treatment, so as to improve the quality of the potassium titanate fiber, promote the potassium titanate fiber to generate chemical reaction with other raw materials within shorter time after the potassium titanate fiber is added into the raw material of the carbon-based ceramic friction material, improve the toughness, abrasion-resistant property, heat stability, and dynamic and static friction coefficient ratio of the carbon-based ceramic friction material, and further improve the safety.

Description

technical field [0001] The invention relates to the technical field of raw material processing of carbon-based ceramic friction materials, in particular to a method for modifying carbon-based ceramic friction materials with potassium titanate fibers. Background technique [0002] Potassium titanate fiber is a composite reinforced fiber material with excellent performance, usually with K 2 O.nTiO 2 Indicates its composition, where n is 1, 2, 4, 6, 8; due to the different values ​​of n, its performance is also relatively different, and according to its different performance, the role played in various fields is not the same, When the above-mentioned potassium titanate fiber is applied to the field of friction materials, it can improve the friction coefficient and thermal stability of the friction materials, and improve the safety of the friction materials. However, since there are many preparation methods of potassium titanate fibers in the prior art, and the quality of the ...

Claims

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Application Information

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IPC IPC(8): C04B35/626C04B35/80C04B35/52
Inventor 周贵宏单全庆
Owner WANSHAN SPECIAL ZONE HONG AN FRICTION MATERIAL
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