High-strength and high-wear-resisting plastic valve element and preparation method thereof

A plastic valve core, high wear-resistant technology, applied in the field of valve manufacturing, can solve the problems of rising metal material prices, poor wear resistance of the valve core, increased production costs, etc., to achieve improved wear resistance, good self-lubrication, and self-lubrication excellent effect

Inactive Publication Date: 2016-07-06
TONGLING BAIRUI EQUIP PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of society, the gradual shortage of metal resources has led to the continuous rise in the price of metal materials used to produce the valve core, so the production cost has increased.
Now there are polytetrafluoroethylene plastic valve cores on the market, but the valve cores made of polytetrafluoroethylene have poor wear resistance and low strength.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A high-strength and high-wear-resistant plastic valve core, the weight parts of which are composed of raw materials are: 60 parts of PFA, 10 parts of ETFE, 3 parts of nano-attapulgite, 5 parts of nano-dolomite powder, 2 parts of nano-ceramic powder, and 4 parts of nano-silicon nitride , 1 part of glass fiber, 1 part of anti-aging agent, 0.5 part of antioxidant, 0.8 part of coupling agent, and 1 part of liquid paraffin.

[0017] The preparation method of the high-strength and high-wear-resistant plastic valve core includes the following preparation steps:

[0018] (1) Take each raw material according to the above weight ratio, and mix and stir glass fiber, coupling agent and liquid paraffin to obtain a mixture;

[0019] (2) Add nano-attapulgite, nano-dolomite powder, nano-ceramic powder, nano-silicon nitride, anti-aging agent, and antioxidant into the kneader, and dilute the mixture of step (1) at a stirring speed of 1400 rpm Spray into the kneader in mist form;

[002...

Embodiment 2

[0024] A high-strength and high-wear-resistant plastic valve core, the weight parts of which are composed of raw materials are: 70 parts of PFA, 15 parts of ETFE, 4 parts of nano-attapulgite, 5 parts of nano-dolomite powder, 3 parts of nano-ceramic powder, and 3 parts of nano-silicon nitride , 2 parts of glass fiber, 2 parts of anti-aging agent, 0.6 part of antioxidant, 1.2 parts of coupling agent, 2 parts of liquid paraffin.

[0025] The preparation method of the high-strength and high-wear-resistant plastic valve core includes the following preparation steps:

[0026] (1) Take each raw material according to the above weight ratio, and mix and stir glass fiber, coupling agent and liquid paraffin to obtain a mixture;

[0027] (2) Add nano-attapulgite, nano-dolomite powder, nano-ceramic powder, nano-silicon nitride, anti-aging agent, and antioxidant into the kneader, and dilute the mixture of step (1) at a stirring speed of 1500 rpm Spray into the kneader in mist form;

[002...

Embodiment 3

[0032] A high-strength and high-wear-resistant plastic valve core, the weight parts of which are composed of raw materials are: 80 parts of PFA, 20 parts of ETFE, 5 parts of nano-attapulgite, 3 parts of nano-dolomite powder, 5 parts of nano-ceramic powder, and 2 parts of nano-silicon nitride , 2 parts of glass fiber, 3 parts of anti-aging agent, 0.8 part of antioxidant, 1.5 parts of coupling agent, 3 parts of liquid paraffin.

[0033] The preparation method of the high-strength and high-wear-resistant plastic valve core includes the following preparation steps:

[0034] (1) Take each raw material according to the above weight ratio, and mix and stir glass fiber, coupling agent and liquid paraffin to obtain a mixture;

[0035] (2) Add nano-attapulgite, nano-dolomite powder, nano-ceramic powder, nano-silicon nitride, anti-aging agent, and antioxidant into the kneader, and dilute the mixture of step (1) at a stirring speed of 1600 rpm Spray into the kneader in mist form;

[003...

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Abstract

The invention discloses a high-strength and high-wear-resisting plastic valve element and a preparation method thereof. The high-strength high-wear-resisting plastic valve element is prepared from, by weight, 60-80 parts of PFA, 10-20 parts of ETFE, 3-5 parts of nano attapulgite, 3-5 parts of nano dolomite powder, 2-5 parts of nano ceramic powder, 2-4 parts of nano silicon nitride, 1-2 parts of glass fibers, 1-3 parts of antiager, 0.5-0.8 part of antioxidant, 0.8-1.5 parts of coupling agent and 1-3 parts of liquid paraffin. The high-strength and high-wear-resisting plastic valve element is high in strength and resistant to impacts and wear, and has high temperature resistance, self-lubrication performance and excellent dimension stability.

Description

technical field [0001] The invention relates to the technical field of valve manufacturing, in particular to a high-strength and high-wear-resistant plastic valve core and a preparation method thereof. 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 valves are made of metal valve cores, which are favored for their long service life. However, with the development of society, the gradual shortage of metal resources has led to a continuous rise in the price of metal materials used to produce valve cores, thus increasing production costs. Teflon plastic valve cores have appeared on the market now, but the valve cores made of Teflon have poor wear resistance and low strength. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a high-strength and high-wear-resistant pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08L23/08C08L27/18C08L91/06C08K13/04C08K7/14C08K3/34C08K3/26B29C45/76B29C45/77B29C45/78
CPCC08L27/12B29C45/76B29C45/77B29C45/78C08K2201/011C08L2201/08C08L2205/02C08L2205/03C08L23/0892C08L91/06C08K13/04C08K7/14C08K3/34C08K3/346C08K2003/267C08L27/18
Inventor 何颜鹏
Owner TONGLING BAIRUI EQUIP PARTS CO LTD
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