公开(公告)号：EP1100638A1

公开(公告)日：2001-05-23

申请号：EP99938060.3

申请日：1999-08-06

申请人： ISHIKAWAJIMA-HARIMA JUKOGYO KABUSHIKI KAISHA ,  BHP STEEL (JLA) PTY. LTD.

发明人： STREZOV, Lazar ,  MUKUNTHAN, Kannappar

IPC分类号： B22D11/06

CPC分类号： B22D11/0668 ,  B22D11/0651

摘要： In twin roll casting of steel strip, molten steel is introduced into the nip between parallel casting rolls (16) to create casting pool (30) supported on casting surfaces (16A) of the rolls and the rolls are rotated to deliver solidified strip (20) downwardly from the nip. Casting surfaces (16A) are textured by a random pattern of discrete projections having pointed peaks with a surface distribution of between 10 and 100 peaks per mm2 and an average height of at least 10 microns. The random texture may be produced by grit blasting the casting surfaces on a substrate covered by a protective coating. Alternatively the texture may be produced by chemical deposition or electrodeposition of a coating onto a substrate to form the casting surfaces.

摘要翻译： 在钢带的双辊铸造中，将钢水引入平行浇铸辊（16）之间的辊隙中以形成支撑在辊的浇铸表面（16A）上的浇注熔池（30），并且辊旋转以输送凝固带（20 ）从辊隙向下。 铸造表面（16A）通过具有尖峰的离散投影的随机图案进行纹理化，尖峰具有每平方毫米10至100个峰值和至少10微米的平均高度的表面分布。 随机纹理可以通过在由保护涂层覆盖的基底上喷砂铸造表面而产生。 或者，可以通过将涂层化学沉积或电沉积到基底上以形成铸造表面来产生纹理。