FIELD: technology of production of hot-galvanized metal used in production of a new type of products - steel with the thinnest zinc plating in automotive industry. SUBSTANCE: method includes melting of steel of definite chemical composition, hot rolling on continuous wide-strip mill 2000, pickling in continuous pickling unit, cold rolling on five-stand tandem mill 2030, annealing in bell-type furnaces, temper rolling and treatment in continuous hot galvanizing unit. The method ensures production of a new type of products for automotive industry, stable production of high-grade competitive hot-galvanized metal of high drawing categories with the thinnest zinc coating of less than 10 mcm thick, superior stamping ability and weldability, and perfect adhesion of coating. EFFECT: higher efficiency. 1 dwg, 1 tbl
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Authors
Dates
1999-04-10—Published
1997-03-05—Filed