Packaging steel strip manufacture technology introduction and coatings

Packaging steel strip manufacture technology introduction and coatings manufacture layer of the tu town zone and its products are widely used in building, automobile, household appliances, transportation and other industries, especially the coatings board remains very popular growth momentum. Its technological development mainly displays in: ( 1) A cold-rolled, acid pickling can be improve yield 1% Between 30% and 3%, and improve the machine production 5000-50%, the decrease of the intermediate warehouse 10000 m2, reduce roll consumption 40% 50% and reduce the production cost and construction investment; ( 2) Continuous annealing, its products are of good quality, good flatness, smooth surface, and uniform performance, can improve the yield by 1% 3%, steel grade diversity, energy saving more than 20%, production cycle is shortened by 10 days to 1 day, equipment cover an area of an area small; ( 3) Full hydrogen bell type annealing, 1 times than traditional bell type furnace with high efficiency, deep drawing of products, and the surface is bright and clean, especially suitable for small batch and many varieties of cold rolled coil. ( 4) Strip shape control technology has very big development, widely used for hydraulic bending roller, lubrication and cooling, closed-loop control technology, has developed a batch of new mill can effectively control plate shape; ( 5) Hot dip galvanized, galvanized aluminum and zinc and iron, electric galvanized, nickel, galvanized fingerprint resistant plate, organic coating plate, low damping plate, tin plating, nickel plating tin, electroplating chromium, lead plating, hot lead tin plating coatings production technology has a great development.