Production method of high-strength hot-dip galvanizing steel strip
A technology of hot-dip galvanizing and production methods, which is applied in the direction of hot-dip galvanizing, coating, metal material coating technology, etc., can solve the problems of low strength, slow cooling speed, and difficult cooling speed of galvanized sheets, and achieve the best results Good stability, improved strength, simple and easy method
Inactive Publication Date: 2013-08-07
重庆万达薄板有限公司
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Abstract
The invention discloses a production method of a high-strength hot-dip galvanizing steel strip. According to the production method, after the steel strip is heated above a recrystallization temperature and is subjected to appropriate temperature preservation, a cooling medium incapable of causing the oxidation of the steel strip is sprayed on the surface of the high-temperature steel strip, wherein the cooling medium is liquid and can be vaporized at a high temperature to absorb lots of heat, thus the steel strip is rapidly cooled, the recrystallization change happens in very short time to generate very thin crystal particles, the effect of strength enhancement is achieved, and then the hot-dip galvanizing is carried out to produce the high-strength hot-dip galvanizing steel strip. The cooling medium can be but not limited to combustible materials such as hydrocarbon compounds, and if the cooling medium is the combustible material such as the hydrocarbon compound, the combustible material can be burned to assist steel strip heating during heating the steel strip and is fully utilized.
Application Domain
Hot-dipping/immersion processes
Technology Topic
Thin crystalHot-dip galvanization +9
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