一、前言鞍钢冷轧薄板厂原有75座罩式退火炉,是从苏联引进的,于1960年开工投产。目前看,退火炉的装机水平与工艺操作均比较陈旧落后,工人的劳动强度较大而且条件也比较差。为了适应提高产品质量的要求,改善工人的劳动条件,减轻工人的劳动强度,于1983年8月在原有75号炉台上进行固定电偶和插放电偶的对比试 First, the preface Anshan Iron and Steel Cold-rolled sheet mill original 75 hood annealing furnace, is imported from the Soviet Union, put into operation in 1960. At present, the installed level of annealing furnace and the operation of the process are relatively old and backward, the worker’s labor intensity is larger and the conditions are also worse. In order to meet the requirements of improving product quality, improving the working conditions of workers and reducing the labor intensity of workers, a comparative test of fixed galvanic couples and galvanic couplers was carried out on the original 75th furnace stage in August 1983