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High-wear-resistant plastic electromagnetic valve element

A solenoid valve, high wear-resistant technology, applied in the field of valve manufacturing, can solve the problems of large expansion coefficient of polytetrafluoroethylene, affecting the social competitiveness of enterprises, affecting the service time of valves, etc., to achieve good self-lubrication, adhesion and coverage The degree of improvement, the effect of light weight

Active Publication Date: 2014-08-27
ANHUI JINDA INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of society and the gradual shortage of metal resources, the price of metal materials used to manufacture valve cores continues to rise. Therefore, the cost of producing faucets continues to increase, which seriously affects the social competitiveness of enterprises; Polytetrafluoroethylene (PTFE) plastic valves have appeared. PTFE has excellent heat resistance, chemical resistance, non-adhesion and weather resistance, but due to the large linear expansion coefficient and poor dimensional stability of PTFE , low hardness, poor wear resistance, especially when used for the valve core in the valve, because the valve core often moves back and forth in the valve seat, the requirements for the wear resistance of the material are high, and poor wear resistance directly affects the use of the valve time

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0021] A high wear-resistant plastic solenoid valve core, composed of the following components according to mass percentage: PFA75%, ETFE10%, bronze powder 5%, nano-molybdenum disulfide 4%, carbon fiber 1%, antioxidant 0.8%, coupling agent 2.2 %, liquid paraffin 2%.

[0022] The above-mentioned antioxidant is composed of the following components according to mass percentage: 75% of dilauryl thiodipropionate, and 25% of di-tert-butyl p-cresol.

[0023] The above coupling agent is composed of the following components according to mass percentage: 50% methyl silane, 50% titanate, wherein methyl silane is one or more of dimethyl silane, trimethyl silane and tetramethyl silane .

[0024] A method for manufacturing a high wear-resistant plastic solenoid valve core, comprising the following steps:

[0025] (1) Stir the coupling agent and carbon fiber evenly in the container;

[0026] (2) Add liquid paraffin to the container and stir evenly;

[0027] (3) Add bronze powder, nano-mo...

Embodiment 2

[0033] A high wear-resistant plastic solenoid valve core, composed of the following components in terms of mass percentage: PFA80%, ETFE8%, bronze powder 4%, nano-molybdenum disulfide 4%, carbon fiber 0.5%, antioxidant 0.5%, coupling agent 1 %, liquid paraffin 2%.

[0034] The above-mentioned antioxidant is composed of the following components according to mass percentage: 70% of dilauryl thiodipropionate, and 30% of di-tert-butyl p-cresol.

[0035] The above coupling agent is composed of the following components according to mass percentage: 40% methyl silane, 60% titanate, wherein methyl silane is one or more of dimethylsilane, trimethylsilane, tetramethylsilane .

[0036] A method for manufacturing a high wear-resistant plastic solenoid valve core, comprising the following steps:

[0037] (1) Stir the coupling agent and carbon fiber evenly in the container;

[0038] (2) Add liquid paraffin to the container and stir evenly;

[0039] (3) Add bronze powder, nano-molybdenum...

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Abstract

The invention discloses a high-wear-resistant plastic electromagnetic valve element composed of the following components by mass percentage: 70-80% of PFA (Polyfluoroalkoxy), 5-15% of ETFE (Ethyl Tetra Fluoro Ethylene), 2-6% of bronze powder, 1-5% of nano molybdenum disulfide, 0.3-1.2% of carbon fiber, 0.2-0.8% of antioxidant, 0.5-5% of coupling agent and 0.1-2% of liquid paraffin. The high-wear-resistant plastic electromagnetic valve element disclosed by the invention and prepared by using a scientific preparation method is extremely good in wear resistance and self-lubrication property, favorable in performance, suitable for frequently moving back and forth, long in service life 3-8 times longer than that of a PTFE valve element, excellent in low and high temperature resistance and relatively high in impact strength at the temperature of 180 DEG C below zero to 250 DEG C above zero.

Description

technical field [0001] The invention belongs to the technical field of valve manufacturing, and in particular relates to a high wear-resistant plastic solenoid valve core. Background technique [0002] In the modern era of industrial development, valves play a very important role in petroleum, chemical, metallurgy and other fields. At present, most of the valves in China are made of metal material. It is safe and has a long service life and is favored by people. However, with the development of society and the gradual shortage of metal resources, the price of metal materials used to manufacture valve cores continues to rise. Therefore, the cost of producing faucets continues to increase, which seriously affects the social competitiveness of enterprises; Polytetrafluoroethylene (PTFE) plastic valves have appeared. PTFE has excellent heat resistance, chemical resistance, non-adhesion and weather resistance, but due to the large linear expansion coefficient and poor dimens...

Claims

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Application Information

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IPC IPC(8): C08L27/18C08L23/08C08K13/06C08K9/06C08K9/04C08K7/06C08K3/08C08K3/30C08K5/01C08K5/372C08K5/13
Inventor 孔祥伟
Owner ANHUI JINDA INSTR
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