发明名称 Process for manufacturing thin strip of ferritic stainless steel, and thin strip thus obtained
摘要 The subject of the invention is a process for manufacturing ferritic stainless steel strip, in which a strip of a ferritic stainless steel, of the type containing at most 0.12% of carbon, at most 1% of manganese, at most 1% of silicon, at most 0.040% of phosphorus, at most 0.030% of sulfur and between 16 and 18% of chromium, is solidified, directly from liquid metal, between two close-together, internally-cooled, counterrotating rolls with horizontal axes, wherein said strip is then cooled or left to cool so as to avoid making it remain within the austenite to ferrite and carbides transformation range, wherein said strip is coiled at a temperature of between 600 DEG C. and the martensitic transformation temperature Ms, wherein the coiled strip is left to cool at a maximum rate of 300 DEG C./h down to a temperature of between 200 DEG C. and ambient temperature and wherein said strip then undergoes box annealing. The subject of the invention is also a ferritic stainless steel strip of the type containing at most 0.12% of carbon, at most 1% of manganese, at most 1% of silicon, at most 0.040% of phosphorus, at most 0.030% of sulfur and between 16 and 18% of chromium, wherein it is capable of being obtained by the above process.
申请公布号 US6106638(A) 申请公布日期 2000.08.22
申请号 US19980075533 申请日期 1998.05.11
申请人 USINOR 发明人 PARADIS, PHILIPPE;MARTIN, PHILIPPE
分类号 B22D11/00;B22D11/06;B22D11/106;B22D11/124;C21D1/02;C21D1/19;C21D8/02;C21D9/46;C21D9/52;C22C38/00;C22C38/18;(IPC1-7):C22C38/18 主分类号 B22D11/00
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