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建筑用彩钢板一般是以热镀锌钢板和热镀铝锌钢板为基板，主要加工成瓦楞板，或聚氨酯复合夹芯板后，用于建造钢结构厂房、机场、库房、冷冻

库等工业和商业建筑的屋顶、墙面、门等。彩涂钢板最终产品板型的保证，与钢板的强度等级、压型钢板的板型以及加工机器等密切相关。总的来

说，加工道次越多，板型越好，加工速度越慢、板型越好。对压型钢板板型来说，浅波板的板型优于高波板。对钢板强度来说，强度加工后的板型

变差的趋势越明显。高强钢的板型相对较差还有另外一个原因就是很多彩涂生产厂仅靠降低热镀锌的退火温度来提高材料的屈服强度，这样就会导

致钢板宽度方向上力学性能的不均衡。这种不均衡是由整个宽度方向带钢温度的不均匀引起的，温度下降可能导致部分部位温度低于钢板再结晶的

退火温度。

The color steel plate for construction is generally hot-galvanized steel plate and hot-plated aluminum zinc steel plate as the substrate, mainly processed into

corrugated board, or polyurethane composite sandwich board, used for the construction of steel structure workshop, airport, warehouse, freezer and other

industrial and commercial buildings roof, wall, door and so on. The guarantee of the final product plate type of the color-coated steel plate is closely related to

the strength grade of the steel plate, the plate type of the pressing steel plate and the processing machine. In general, the more the processing times, the

better the plate, the slower the processing speed, the better the plate. For the pressed steel plate type, the shallow wave plate type is better than the high

wave plate. For the strength of steel plate, the trend of plate shape variation after strength processing is more obvious. Another reason for the relatively poor

plate shape of high strength steel is that many color coating manufacturers only reduce the annealing temperature of hot-dip galvanizing to improve the yield

strength of the material, which will lead to the imbalance of mechanical properties in the width direction of the steel plate. This imbalance is caused by the

inequality of the strip temperature in the whole width direction, and the temperature decrease may cause the temperature to be below the annealing

temperature of the plate recrystallization.