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据日本“Transactions ISIJ”Vol.24,№10,B—359(1984)报道:近年来,由于楼房建筑不断发展,对大尺寸,高抗张强度钢板的需求量越来越大。对大尺寸钢板适用性能的要求通常是良好的可焊性,特别是低温条件下抗焊裂性。为了满足这种质量要求,开发了一种直接调质方法。 1983年4月水岛钢铁厂安装了一套多功能加速冷却系统,开辟了轧后钢板立即直接淬火的道路。目前该系统已用于试生产北极
According to the Japanese “ISIJ” Vol.24, №10, B-359 (1984) reports: In recent years, due to the continuous development of building construction, the demand for large-size, high tensile strength steel is growing. The requirements for the suitability of large-size steel sheets are usually good solderability, especially crack resistance at low temperatures. In order to meet this quality requirement, a direct quenching method has been developed. In April 1983, the Shui Dao Iron and Steel Plant installed a multi-functional accelerated cooling system that opened up the road for immediately quenched steel immediately after rolling. The system is currently being used for pilot production of the North Pole