High-temperature-resistant insulating composition, insulating coating, and preparation method and application of insulating coating

An insulating coating and composition technology, applied in the field of coating composition preparation, can solve the problems of not affecting the insulating coating, the high temperature resistance of the insulating coating needs to be further improved, and achieve the effect of excellent adhesion performance and good insulation performance
CN110229549AActive Publication Date: 2019-09-13GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
Publication Date
2019-09-13

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Abstract

The invention belongs to the technical field of coating composition preparation, and particularly relates to a high-temperature-resistant insulating composition, an insulating coating, and a preparation method and application of the insulating coating. Raw materials of the high-temperature-resistant insulating composition comprise one or more selected from a group consisting of magnesium dihydrogen phosphate, silica sol, chromic anhydride, ethylene bis(oxyvinyl) bis[3-(tert-butyl-4-hydroxy-m-tolyl) propionate], bis[3-(3,5-di-tert-butyl-4-hydroxy)phenyl] triethylene glycol propionate, butyloctyldiphenylamine and high-molecular phenolic ester, and comprise one or more selected from a group consisting of cyano acetoxyl ethyl methacrylate, hydroxymethyl diacetone acrylamide and a water-based alkyd resin emulsion. The coating formed by the synergistic effect among all the components can resist high-temperature heat treatment at a temperature of 750-900 DEG C for a long time, has excellent insulating performance, has excellent adhesion performance on the surface of a bare steel sheet of ultra-thin silicon steel, and can reach a grade A.
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Description

technical field

[0001] The invention belongs to the technical field of coating composition preparation, and in particular relates to a high-temperature-resistant insulating composition, an insulating coating, a preparation method and application thereof. Background technique

[0002] The converter valve is the core equipment of the DC transmission project. It obtains the desired DC voltage by sequentially connecting the three-phase AC voltage to the DC terminal, and realizes power control. The converter valve is equipped with a thyristor and a saturable reactor, among which the thyristor is a key component that determines the flow capacity of the converter valve, and the saturable reactor is a reactive power compensation device that can suppress the sudden rise of current in the valve due to the conduction of the element , and smooth the surge current caused by the fault in the line, so as to avoid burning the thyristor components and protect the thyristor. The key componen...

Claims

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