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Cold rolling is under the recrystallization of rolling, but generally understood to use room temperature rolling material. Aluminium cold rolled into sheet mill and foil rolling. Thickness above 0.15 ~ called board, 0.15~the following referred to as a foil. Europe and the United States more than using 3~6 sets of continuous mill as cold rolling equipment.
(1)With good durability, compared with galvanized steel longer life;
(2) has good heat resistance, compared with galvanized steel at high temperatures and not easy to change color;
(3) has good heat reflective;
(4) with the silver gorgeous surface;
(5) has a similar to galvanized steel processing and spraying performance;
(6) has a good welding performance.
Application: apply to demanding in galvanized industry.
6, electroplating sn (tin) : use of insoluble anode of Florida, Stan electroplating tin process.
8, electrical steel, silicon steel sheet
Cold rolled steel sheet use is very wide, such as automotive manufacturing, electrical appliances, vehicles, aerospace, precision instrument, canned food, etc.
Cold rolled steel sheet is short for ordinary carbon structural steel manufacture, also known as manufacture, commonly known as the cold sheet, are sometimes mistakenly written as cold sheet. Cold sheet is made of ordinary carbon structural steel hot-rolled steel belt, after further made from cold rolled steel sheet thickness is less than 4 mm.Due to rolling at room temperature, do not produce iron oxide, therefore, the surface of cold sheet is of good quality and size precision is high, coupled with annealing treatment, the mechanical performance and the performance is better than that of the hot rolled sheet steel, in many fields, especially in home appliance manufacturing areas, has been gradually replace the hot rolled steel sheet with it.
Width : 1450 mm cold rolled sheet
Commodity standard number sheetp specification standards
Cold rolled coil GBGB11253 ST12 * (SPCC) - SB - 89 (SPCC) * * (SPCC) - B * ST12 - SD * ST12 - SB * ST12 Q1950.20-1.2 - B * * 800-1250
Manufacture GBGB11253 ST12 * (SPCC) - SB - 89 (SPCC) * * (SPCC) - B * ST12 - SD * ST12 - SB * ST12 Q1950.20-1.2 - B * * * (1600-2500), 800-1250
Width : 1450 mm cold rolled sheet grades and USES
Breed standards, kinds of purposes and characteristics
Cold rolled sheet GB700-88 hard roll (SPCC) - 1 b and low yield point, stamping plasticity zone shape stability is good
Bright annealing soft board (SPCC) - SD, low yield point, stamping and plasticity zone shape stability is good
Cold rolled deep drawing steel strip SPCD stamping performance better, and slip line should not be created
Cold rolled deep drawing steel belt SPCE fine stamping formability, can reduce the stamping way In the wide manufacture.