| 摘要 |
PURPOSE:To apply advantageously a continuously cast stock to the pipe forming of skew rolling system by forming the continuously cast slab of low C, N stain less steel, formed into the rectangular cross section of prescribed dimensions, into the bloom of square cross section under the prescribed hot rolling conditions, before forming it into a round billet. CONSTITUTION:The long and short sides of a continuously cast slab of stainless steel, containing by weight, <=0.32% C and <=0.4% N, and the sort side of a bloom, and further the outer diameter of a billet to be formed, are represent4d respectively by W, T and H, and further by D. This slab is hot rolled into the bloom, under the relation of equations I and II, and the conditions of a >=120mm/pass rolling reduction in the long-side direction, and then the bloom is properly hot rolled into the round billet. |
