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Limit valve switch high in electric-field breakdown resistance

A valve limit and performance technology, applied in valve details, valve device, valve shell structure and other directions, can solve the problem of lack of effective protection layer, affecting the service life of valve limit switch, etc., to achieve strong and high resistance to electric field breakdown performance. Electric field breakdown resistance and mechanical shock resistance

Inactive Publication Date: 2015-01-14
苏州常熟荣大威尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the commonly used valve limit switch lacks an effective protective layer, which affects the service life of the valve limit switch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A valve limit switch with strong resistance to electric field breakdown, comprising a housing, the housing is provided with a valve shaft rod and a valve position display mechanism driven by the valve shaft rod, the housing is coated with a protective layer, the The protective layer is composed of the following components by weight:

[0057] 4 parts calcium sulfate,

[0058] cermet particles,

[0059] 3 parts aluminate,

[0060] 7 parts Nano Magnesium Hydroxide,

[0061] 3 parts of isomeric decanol ethoxylates,

[0062] 6 parts molybdenum trioxide,

[0063] 7 parts silicone resin,

[0064] 2 parts zinc oxide,

[0065] 4 parts silicon nitride,

[0066] 2 parts of γ-(methacryloyloxy)propyltrimethoxysilane,

[0067] 5 parts ethylenediamine polyoxyethylene polyoxypropylene block polyether.

Embodiment 2

[0069] A valve limit switch with strong resistance to electric field breakdown, comprising a housing, the housing is provided with a valve shaft rod and a valve position display mechanism driven by the valve shaft rod, the housing is coated with a protective layer, the The protective layer is composed of the following components by weight:

[0070] 3 parts calcium sulfate,

[0071] 3 parts cermet particles,

[0072] 2 parts aluminate,

[0073] 6 parts Nano Magnesium Hydroxide,

[0074] 2 parts isomerized decanol ethoxylates,

[0075] 5 parts molybdenum trioxide,

[0076] 6 parts silicone resin,

[0077] 1 part zinc oxide,

[0078] 3 parts silicon nitride,

[0079] 1 part γ-(methacryloyloxy)propyltrimethoxysilane,

[0080] 4 parts ethylenediamine polyoxyethylene polyoxypropylene block polyether.

Embodiment 3

[0082] A valve limit switch with strong resistance to electric field breakdown, comprising a housing, the housing is provided with a valve shaft rod and a valve position display mechanism driven by the valve shaft rod, the housing is coated with a protective layer, the The protective layer is composed of the following components by weight:

[0083] 3.4 parts calcium sulfate,

[0084] 3.4 parts of cermet particles,

[0085] 2.3 parts aluminate,

[0086] 6.7 parts of nano-sized magnesium hydroxide,

[0087] 2.3 parts of isomeric decanol polyoxyethylene ether,

[0088] 5.6 parts molybdenum trioxide,

[0089] 6.7 parts silicone resin,

[0090] 1.2 parts zinc oxide,

[0091] 3.4 parts silicon nitride,

[0092] 1.2 parts of γ-(methacryloyloxy)propyltrimethoxysilane,

[0093] 4.5 parts of ethylenediamine polyoxyethylene polyoxypropylene block polyether.

[0094]

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PUM

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Abstract

The invention discloses a limit valve switch high in electric-field breakdown resistance. The limit valve switch comprises a shell, and a valve shaft lever and a valve position display mechanism driven through the valve shaft lever are arranged in the shell which is coated with a protecting layer; the protecting layer comprises, by weight, 3-4 parts of calcium sulfate, 3-4 parts of metal ceramic particles, 2-3 parts of aluminic acid ester, 6-7 parts of nano-sized magnesium hydroxide, 2-3 parts of heterogeneous ten alcohol polyoxyethylene ether, 5-6 parts of molybdenum trioxide, 6-7 parts of organic silicon resin, 1-2 parts of zinc oxide, 3-4 parts of silicon nitride, 1-2 parts of gamma-(methyl acryloyl oxygen) propyl trimethyl silane and 4-5 parts of ethylenediamine polyoxyethylene poly propylene oxygen embedded section type polyether. The limit valve switch is resistant to mechanical shock and high in electric breakdown resistance.

Description

technical field [0001] The invention relates to a valve limit switch with strong electric field breakdown resistance. Background technique [0002] At present, the commonly used valve limit switch lacks an effective protective layer, which affects the service life of the valve limit switch. Contents of the invention [0003] The purpose of the present invention is to provide a valve limit switch with strong resistance to electric field breakdown, which is resistant to mechanical impact and has high resistance to electric field breakdown. [0004] In order to achieve the above object, the technical solution of the present invention is to design a valve limit switch with strong electric field breakdown resistance, which includes a housing in which a valve shaft rod and a valve position display mechanism driven by the valve shaft rod are arranged. , the housing is coated with a protective layer, the protective layer is composed of the following components by weight: [0005...

Claims

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Application Information

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IPC IPC(8): F16K27/00C09D183/04C09D7/12
CPCC09D183/04C08K2201/011C08L2205/02C08L2205/035C09D7/40F16K27/00C08L71/02C08K2003/3045C08K2003/2224C08K2003/2255C08K2003/2296C08K3/34C08K5/5425
Inventor 张群立
Owner 苏州常熟荣大威尔科技有限公司
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