| 摘要 |
<p>1505941 Deoxidizing steel SUMITOMO METAL INDUSTRIES Ltd and AIKOH CO Ltd 17 March 1976 [25 March 1975] 10822/76 Heading C7D A reducing agent for use in steelmaking consists of 20-50 wt. per cent aluminium, with 40-80% lime or limestone, the balance being impurities, the components being homogeneously mixed and moulded into briquettes. The aluminium is preferably in the form of powder having a size distribution such that # 75% lies within the range 10-20 mesh (Tyler) with < 5% coarser than 10 mesh and < 20% finer than 20 mesh, while the lime is 10 mesh or coarser. The agent is used particular for reducing Cr and Mn from the slag in stainless steel production.</p> |
