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一般饮料罐、食品罐等用的镀锡板材质按调质度来区分。调质度的洛氏硬度(HR30T)值表示:一次冷轧产品按材质的软硬程度划分为T1～6;二次冷轧产品划分为DR8—10。 为了生产各种调质度的镀锡板,一般T3级别以下的软质镀锡原板采用低碳铝镇静钢作为原料,以罩式退火法进行生产;T4以上的硬质镀锡原板用连续退火法生产;DR镀锡原板是经某种方式退火后,再用
General drink cans, food cans and other materials used by tin plate temper degree to distinguish. The temper degree of Rockwell hardness (HR30T) values: a cold-rolled products according to the degree of hardness of the material is divided into T1 ~ 6; secondary cold-rolled products are divided into DR8-10. In order to produce a variety of tempering tin plate, generally below the T3 level of soft tin plate with low carbon aluminum killed steel as the raw material, with hood annealing production; T4 above hard tin plate with a continuous annealing France production; DR tin plate is annealed by some way, then use