Preparing method for high abrasion resistance and high heat resistance automobile clutch surface patch

A clutch surface, high heat resistance technology, applied in the field of automobile clutch surface preparation, can solve the problems of increasing production strength and production cost, unable to completely eliminate the internal stress of products, unreasonable heat treatment process, etc., to reduce production intensity, The effect of reducing production costs and improving mechanical properties

Active Publication Date: 2017-08-11
来安县隆华摩擦材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of automobiles towards high speed, heavy load, comfort and safety, the performance requirements of clutch faces used in automobiles are getting higher and higher, which requires stronger wear resistance and better wear resistance of clutch faces. At the same time, the reinforcing fiber needs to be impregnated with slurry in the process of the above literature, which greatly increases the production strength and production cost, and the heat treatment process is unreasonable, and the internal stress of the product cannot be completely eliminated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of graphene oxide and nano-diamond modified composite fiber cloth, comprising the steps of:

[0028] (1) The graphene oxide prepared by the Hummers method was added with water and ultrasonically stirred to make a graphene oxide aqueous solution with a mass concentration of 0.8mg / mL, the ultrasonic power was 250W, and the ultrasonic time was 8min;

[0029] (2) According to the mass ratio of 16:0.4:0.5:0.01, mix absolute ethanol, acetone, iodine, and nano-diamond evenly, and ultrasonically disperse to obtain nano-diamond dispersion liquid. The ultrasonic power is 200W, and the ultrasonic time is 12 minutes;

[0030](3) Use composite fiber cloth as the anode, and two stainless steel plates of the same size as the counter electrodes are placed parallel to both sides of the composite fiber as the electrophoresis device. The distance between the electrodes is 1.5 cm, and then add the graphene oxide aqueous solution prepared in step (1) As the electrophore...

Embodiment 2

[0034] A preparation method of nano-aluminum titanate / phosphorous boron molybdenum silicon composite modified water-soluble phenolic resin for automobile clutch face, comprising the following steps:

[0035] (1) Weigh formaldehyde, phenol and barium hydroxide according to the molar ratio of 1.5:1:0.01, and set aside;

[0036] (2) Stir the formaldehyde with water to make a formaldehyde aqueous solution with a mass fraction of 35%, and set it aside;

[0037] (3) Add N-(β-aminoethyl)-γ-aminopropyltriethoxysilane into the ethanol aqueous solution with a volume fraction of 95% according to the mass ratio of 1:4, stir well and set aside;

[0038] (4) Stir the nano-aluminum titanate with water to make a suspension with a mass fraction of 45%, then add the solution prepared in step (3), stir well, disperse ultrasonically for 25 minutes under the condition of a power of 400W, and vacuum filter , dried, ground, and sieved to obtain modified nano-aluminum titanate;

[0039] (5) Mix the...

Embodiment 3

[0045] A method for preparing a highly wear-resistant and high-heat-resistant automobile clutch face, comprising the following steps:

[0046] (1) Immerse the graphene oxide and nano-diamond modified composite fiber cloth prepared in Example 1 into the nano-aluminum titanate / phosphorous boron molybdenum silicon composite modified water-soluble phenolic resin prepared in Example 2, and wait for impregnation After the completion, dry the composite fiber cloth in the drying tower, the temperature is controlled at 85°C, and the time is controlled at 25 minutes, and then the dried composite fiber cloth is torn into strips, and then wound on the winding machine;

[0047] (2) Place the wrapped parison in a mold for hot-pressing, the hot-pressing temperature is 170°C, the pressure is 25MPa, the holding time is 80s / mm, and the number of deflation times is 4 times;

[0048] (3) Put the hot-pressed parison in an oven for heat treatment: put the parison in ethylene glycol and heat it up t...

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PUM

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Abstract

The invention discloses a preparing method for a high abrasion resistance and high heat resistance automobile clutch surface patch. The method comprises the following steps that oxidized graphene and nano-diamond modified composite fiber cloth is immersed in nano aluminum titanate / phosphorus boron molybdenum silicon composite modified water soluble phenol-formaldehyde resin to be dipped, and after dipping is finished, the composite fiber cloth is dried in a drying tower; then, the dried composite fiber cloth is subjected to strip tearing, and winding and forming are conducted on a winding machine; a mold blank obtained after winding is arranged in a die to be subjected to hot press forming, the mold blank obtained after hot press is placed in an oven to be subjected to heat treatment, and after heat treatment is finished, a product is cut, the surface is ground, and the automobile clutch surface patch with the needed specification is manufactured. According to the preparing method, filling particles and other components are not needed, in other words, the pulp dipping step is removed in the technology, the modified composite fiber cloth is directly immersed in the modified water soluble phenol-formaldehyde resin, and then the high abrasion resistance and high heat resistance automobile clutch surface patch can be prepared. Heat treatment is adopted in the method, the method is scientific and reasonable, inner stress of products can be completely eliminated, and the mechanical performance of the products is improved.

Description

technical field [0001] The invention relates to a preparation method of an automobile clutch face, in particular to a preparation method of a highly wear-resistant and high heat-resistant automobile clutch face. Background technique [0002] The automobile clutch face is a component material that the vehicle relies on friction to perform the transmission function. It is a kind of friction material and a very important safety part in the automobile. It has an important impact on the realization of the functionality, safety and comfort of the automobile. . The commonly used automobile clutch face is mainly composed of three parts: binder, reinforcing fiber and filler particles. The role of the binder is to connect the reinforcing fiber and filler particles into a whole, that is, the clutch face product; The mechanical properties of the product ensure that the product has sufficient mechanical strength to withstand the impact force, shear force, and high-speed rotation of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02
CPCF16D69/023F16D69/028
Inventor 薛正宇
Owner 来安县隆华摩擦材料有限公司
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