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Preparation method of valve liner material

A valve lining and mixture technology, applied in the field of valve lining material preparation, can solve the problems of poor wear resistance and hardness, affecting product life, poor sealing, etc., to achieve improved wear resistance and hardness, prolong life, and good sealing Effect

Inactive Publication Date: 2015-01-14
甘燕芬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The valve lining material prepared by this method is black, and its wear resistance and hardness are relatively poor. Therefore, various products made of the valve lining material prepared by this method are easy to deform, wear, and have poor sealing performance, which seriously affects the life of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The present invention will be described in detail below in conjunction with specific examples, but not as a limitation of the present invention.

[0013] First, fully mix, fully mix 4% glass fiber, 7% carbon fiber, 5% molybdenum disulfide, 54% polytetrafluoroethylene and 30% stainless steel powder into a mixture; the particle size of the stainless steel powder is less than 100 microns ;

[0014] Secondly, compression molding, the fully mixed mixture is molded under a pressure of 15-20Mpa and a temperature of 360-380°C, and the holding time is 8 minutes;

[0015] Finally, cool down to room temperature to obtain the valve lining material.

[0016] The anti-wear strength and hardness of the valve lining material made by the method will be greatly improved, and various products made therefrom will not be easily deformed and worn afterward, and their sealing performance is relatively good, thereby prolonging the service life of the products.

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PUM

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Abstract

The invention discloses a preparation method of a valve liner material. The preparation method is characterized by mainly comprising the following steps of firstly, sufficient mixing, namely sufficiently mixing glass fiber, carbon fiber, molybdenum disulfide, polytetrafluoroethylene and stainless steel powder to form a mixture; then, compression molding, namely carrying out compression molding on the sufficiently-mixed mixture at the pressure of 15-20MPa and the temperature of 360-380 DEG C; and finally, cooling to room temperature. The wear strength and hardness of the valve liner material prepared by using the method can be greatly improved, and various products prepared from the valve liner material are not easy to deform and wear and relatively good in sealing performance, so that the service life of each product is prolonged.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a method for preparing a valve lining material. Background technique [0002] The original valve lining material is mainly configured by adding carbon to polytetrafluoroethylene, and its preparation method is to directly mold these two materials. The valve lining material prepared by this method is black, and has poor wear resistance and hardness. Therefore, various products made of the valve lining material prepared by this method are easily deformed, worn, and poorly sealed, which seriously affects the life of the product. Contents of the invention [0003] The invention aims at the deficiencies of the prior art and provides a method for preparing a valve lining material. The abrasion resistance and hardness of the valve lining material produced by the method can be greatly improved. [0004] In order to achieve the above object, a kind of preparation method of valve l...

Claims

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Application Information

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IPC IPC(8): C08L27/18C08K13/04C08K7/14C08K7/06C08K3/30C08K3/08B29C43/58
CPCC08K13/04B29C43/58B29C2043/5808B29C2043/5816C08K3/08C08K3/30C08K7/06C08K7/14C08K2003/0856C08K2003/3009C08L27/18
Inventor 甘燕芬
Owner 甘燕芬
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