Environment-friendly insulating paint for non-oriented silicon steel and preparation method of coating thereof
A technology for insulating coatings and oriented silicon steel, applied in the direction of coatings, etc., can solve the problems of insufficient high temperature resistance of resins and difficult problems of temperature resistance of coatings, and achieve the effects of low cost, improved appearance and excellent corrosion resistance.
Inactive Publication Date: 2012-08-15
江阴市诺科科技有限公司 +1
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- Abstract
- Description
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- Application Information
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Problems solved by technology
[0005] In the past, insulating coatings for non-oriented silicon steel were limited by the insufficient high temperature resistance of the resin, and modern col
Method used
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Embodiment 1
[0040] The coating developer described in Example 1 is coating developer 1; the organic solvent is ethylene glycol; the other auxiliary agents described are leveling agents.
Embodiment 2
[0041] The coating developer described in Example 2 is coating developer 2; the organic solvent is glycerol; the other auxiliary agents described are wetting agent and leveling agent.
Embodiment 3
[0042] The coating developer described in embodiment 3 is coating developer 2; Organic solvent is the mixture of diethylene glycol monobutyl ether, glycerol; Other described auxiliary agent is wetting agent, leveling agent agent, defoamer.
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The invention relates to an environment-friendly insulating paint for non-oriented silicon steel and a preparation method of a coating thereof. The paint is prepared from the following components by weight percent: 10-30% of aluminium dihydrogen phosphate, 1-10% of coating color-developing agent, 0-10% of manganese dihydrogen phosphate, 0.5-1.5% of zinc oxide, 0.1-1% of magnesium oxide, 1-5% of silica sol, 1-5% of boric acid, 0.5-5% of titanate coupling agent, 0.1-0.4% of bismuth nitrate, 2-6% of organic solvent, 0.1-0.5% of other auxiliary agent and the balance of water, wherein the sum of all components is 100%. The environment-friendly insulating paint disclosed by the invention has the advantages that the coating is an environment-friendly coating free of chromate and the high-temperature treatment temperature can be up to 850 DEG C.
Description
technical field [0001] The invention relates to an environmentally friendly insulating coating for non-oriented silicon steel and a coating preparation method thereof, belonging to the technical field of silicon steel coatings. Background technique [0002] The surface coating of cold-rolled non-oriented silicon steel mainly includes three categories: inorganic coating, organic coating and semi-inorganic coating. The general development trend is: organic coatings are gradually eliminated, and inorganic coatings will gradually replace semi-inorganic coatings. However, due to the nature of the inorganic coating itself and the constraints of various conditions, at present, the international electrical steel manufacturers usually use more semi-inorganic coatings. [0003] We know that the use of inorganic insulating coatings containing organic resins can provide lubricity to the cured coating, thereby reducing the wear rate of the die when punching electrical steel. US patent ...
Claims
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Inventor 华明扬
Owner 江阴市诺科科技有限公司
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