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Overhead line system steel cantilever positioning device coated with dirt-repellent composite coating and machining method

A composite coating, positioning device technology, applied in the direction of coating, anti-corrosion coating, conductive coating, etc., can solve the problem of no coating technology and products, affecting the conductive performance of catenary

Active Publication Date: 2021-07-06
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, conventional dirt-repellent coatings are mainly organic silicon, organic fluorosilicon and fluorocarbon coatings, which have certain insulation properties. The use of these coatings in catenary components will affect the electrical conductivity of the catenary, and are suitable for high-speed rail contact The dirt-repellent coating required for the use of grid components must also have electrical conductivity, and there is no related coating technology and product at present

Method used

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  • Overhead line system steel cantilever positioning device coated with dirt-repellent composite coating and machining method
  • Overhead line system steel cantilever positioning device coated with dirt-repellent composite coating and machining method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Formula components by mass, take by weighing 10 parts of film-forming resin (organosilicon modified bisphenol A epoxy resin SM-60), 55 parts of organosilicon monomer (methyltriethoxysilane), crosslinking agent ( Tetraethyl silicate) 0.5 parts, interface adhesive (aminopropyltriethoxysilane) 5 parts, catalyst (dibutyltin dilaurate) 0.1 part, conductive filler (1 μm flake aluminum powder) 30 parts, 1 part of corrosion inhibitor and passivation agent (sodium molybdate), 0.2 part of orientation agent (polyvinylpyrrolidone), 3-6 parts of dustproof agent (organic bentonite), 10 parts of solvent (6 parts of ethanol, 4 parts of propylene glycol methyl ether) 0.3 part, 0.3 part of defoamer (Defom 8700), 5 parts of pigment and filler (iron oxide red), after mixing and stirring evenly, grind in a sand mill until the fineness is about 25 μm, that is, to obtain the contact net assembly Anti-corrosion conductive and foul-repellent coating.

Embodiment 2

[0074] Formula components by mass, weigh 20 parts of film-forming resin (organosilicon modified bisphenol A epoxy resin SM-60), silicone monomer (40 parts of methyltriethoxysilane, methyltrichlorosilane 25 parts) 65 parts, crosslinking agent (methyl orthosilicate) 2.5 parts, interface adhesive (aminopropyltriethoxysilane) 10 parts, catalyst (organobismuth catalyst) 0.3 parts, conductive filler (1μm sheet aluminum powder) 60 parts, corrosion inhibitor passivation agent (cerium nitrate) 3 parts, orientation agent (polyvinylpyrrolidone) 0.4 parts, dustproof agent (organic bentonite) 6 parts, solvent (12 parts ethanol, propylene glycol methyl ether 8 parts) 20 parts, 0.8 parts of defoamer (Defom 8700), 20 parts of pigments and fillers (red iron oxide), after mixing and stirring evenly, grind in a sand mill until the fineness is about 25 μm, that is, the described Corrosion-resistant, conductive, and foul-repellent coatings for catenary components.

Embodiment 3

[0076] Formula components by mass, weigh 15 parts of film-forming resin (organosilicon modified bisphenol A epoxy resin SM-60), silicone monomer (40 parts of methyl triethoxysilane, dimethyl dichloride 15 parts of silane) 55 parts, 1.5 parts of crosslinking agent (tetraethyl orthosilicate), 8 parts of interface adhesive (aminopropyltriethoxysilane), 0.2 parts of catalyst (dibutyltin dilaurate), conductive 50 parts of filler (1μm flake aluminum powder), 2 parts of corrosion inhibitor and passivation agent (cerium nitrate), 0.3 parts of orientation agent (polyvinylpyrrolidone), 4 parts of dustproof agent (organic bentonite), solvent (8 parts of ethanol , 7 parts of propylene glycol methyl ether) 15 parts, defoamer (Defom 8700) 0.6 part, pigment and filler (iron oxide red) 15 parts, after mixing and stirring evenly, grind in a sand mill until the fineness is about 25 μm, that is The anti-corrosion conductive dirt-repellent paint for the catenary assembly is obtained.

[0077] In...

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Abstract

The invention discloses an overhead line system steel cantilever positioning device coated with a dirt-repellent composite coating and a machining method. The device is characterized in that the outer surfaces of bottom anti-corrosive coatings of part or all of parts are coated with a dirt-repellent composite coating, and the dirt-repellent composite coating is an anti-corrosive conductive dirt-repellent coating. The overhead line system steel cantilever positioning device is low in production and manufacturing cost, the long-acting anti-corrosive coating and the dirt-repellent composite coating have a synergistic effect, the anti-corrosion effect is good, adhesion of dust and other corrosion dirt can be effectively avoided or reduced, the service life of the novel steel cantilever positioning device is greatly prolonged, and the operation safety and reliability of the novel steel cantilever positioning device are greatly improved.

Description

technical field [0001] The invention belongs to the field of catenary steel wrist arms of electrified railways, and in particular relates to a positioning device and a processing method for catenary steel wrist arms coated with a dirt-repellent composite coating. Background technique [0002] Rail transit High-speed railway is an important part of my country's transportation hub, most of which pass through eastern coastal cities, and harsh environmental conditions such as offshore ocean salt spray, heavily polluted industrial atmosphere, dust, etc. higher requirements. In particular, the steel wrist arm positioning device is a very important component in the electrification facilities of the high-speed rail. The corrosion of salt spray and adhered dirt directly affects the operation safety and operating cost of the high-speed rail. [0003] Traditional steel wrist arm positioning devices often use anodic oxidation and hot-dip galvanizing to prepare anti-corrosion coatings on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D163/00C09D5/10C09D5/24C09D7/20C09D7/63C09D7/61B60M1/20
CPCC09D183/04C09D5/103C09D5/24C09D7/63C09D7/61C09D7/20B60M1/20C08L2205/03C08K2201/001C08K2003/0812C08K2003/387
Inventor 石瑞霞李红梅陈同舟汪洋方志国戚广枫吕青松冯增辉耿肖
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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