公开(公告)号：US5058659A

公开(公告)日：1991-10-22

申请号：US420307

申请日：1989-10-12

申请人： Horst Abratis ,  Hans-Joachim Selenz ,  Friedrich Hofer

发明人： Horst Abratis ,  Hans-Joachim Selenz ,  Friedrich Hofer

IPC分类号： B22D11/11

CPC分类号： B22D11/11

摘要： A process is provided for producing a steel bloom having a varying chemical composition in the cross-section. First, a flow of molten steel is directed into a casting chill form via a pouring pipe. Next, an alloy wire (e.g., sulphur foil, iron sulfite and other sulphur compounds) is introduced to the chill form. This alloy wire is melted in the molten steel from the upper surface of the molten steel to a maximum depth corresponding to the lower edge of the pouring pipe. The resulting steel bloom exhibits a substantially constant decreasing chemical composition in the cross-section from the outer to the center of the bloom and is easily regulated and reproduced.

摘要翻译： 提供了一种制造横截面具有不同化学组成的钢锭的方法。 首先，通过浇注管将钢水流入铸造冷却模型。 接下来，将合金丝（例如硫箔，亚硫酸铁和其它硫化合物）引入冷却形式。 这种合金丝从钢水的上表面在钢水中熔融到与浇注管的下边缘对应的最大深度。 所得到的钢坯在从花的外部到中心的横截面中表现出大体上恒定的化学成分的降低，容易调节和再现。