公开(公告)号：US20030116232A1

公开(公告)日：2003-06-26

申请号：US10323886

申请日：2002-12-20

申请人： USINOR

发明人： Christian Marchionni ,  Yann Le Papillon ,  Alain Leclercq ,  Michel Faral ,  Jean-Michel Damasse ,  Philippe Rocabois

IPC分类号： B32B015/00 ,  C22C038/00

CPC分类号： C22C38/04 ,  C21D8/0215 ,  C21D8/1277 ,  C22C38/002 ,  Y10T428/12799

摘要： A metallurgical product, made of carbon steel and to be galvanized, which is in the form of a strip or of a sheet obtained from a continuously cast intermediate product having the following composition by weight: 0.0005%nullCnull0.15%; 0.08%nullMnnull2%; Sinull0.040%; Altotalnull0.010%; Alsolublenull0.004%; 0.0050%nullOtotalnull0.0500%; Pnull0.20%; Snull0.10%; each of Cu, Cr, Ni, Mo, W, Conull1%; each of Ti, Nb, V, Zrnull0.5%; each of Sn, Sb, Asnull0.1%; Bnull0.1%; Nnull0.0400%; and the remainder being iron and impurities. Also, a process for obtaining a metallurgical intermediate product, which includes: producing in a ladle a liquid steel the composition of which is as above, and in which the dissolved oxygen content is maintained between 0.0050 and 0.0500% by the establishment of a chemical equilibrium between the metal and the ladle slag; and casting said steel on a continuous casting machine.

摘要翻译： 由碳钢制成并被镀锌的冶金产品，其为带状或由具有以下重量组成的连续铸造中间产品获得的片材形式：0.0005％<= C <= 0.15％; 0.08％<= Mn <= 2％; Si <= 0.040％; Altotal <= 0.010％; 不溶性<= 0.004％; 0.0050％<= Ototal <= 0.0500％; P <= 0.20％; S <= 0.10％; 每个Cu，Cr，Ni，Mo，W，Co <= 1％; 每个Ti，Nb，V，Zr <= 0.5％; Sn，Sb，As <= 0.1％中的每一种; B <= 0.1％; N <= 0.0400％; 其余为铁和杂质。 另外，获得冶金中间体产品的方法，其包括：在钢包中制备如下组成的液态钢，其中溶解氧含量通过建立化学平衡保持在0.0050和0.0500％之间 金属和钢包渣之间; 并在连续铸造机上铸造所述钢。