钢锭模和帽口的设计对特殊钢6t八角钢锭成材率的影响  

Effect of Mould and Hot Top Design on Yield of 6 t Octagonal Ingot of Special Steels

作　　者：沙卫星 魏仁杰[2] 周伟基[2] 李忠伟 耿振伟 于丹 

机构地区：[1]抚顺特殊钢股份有限公司第二炼钢厂,抚顺113001 [2]抚顺特殊钢股份有限公司技术处,抚顺113001

出　　处：《特殊钢》2014年第6期44-46,共3页Special Steel

摘　　要：在原有5 t（实际5.15t）八角锭的基础上,将锭身高度由1 505 mm增加至1840 mm,锥度由4.56％降至3.64％,由原外置帽口改为内置帽口,钢水帽口率由15.15％减少到9.81％,新设计的6t（实际5.85 t）八角锭模生产18CrNiMo7-6,D2和30Cr13钢Φ210～300 mm锻材的结果表明,6t锭平均成材率为86.47％,较5t锭平均成材率79.71％提高了约7个百分点.Based on the original 5 t （real 5.15 t） octagonal ingot mould, with increasing the height of mould from o- riginal 1505 mm to 1 840 mm, decreasing the taper in the mold walls from 4. 56% to 3.64% , modifying the hot top location from outside type to inside type and decreasing the ratio of liquid steel in hot top from 15. 15% to 9. 81% , the resuits of production of Ф210 - 300 mm forged products of steel 18CrNiMo7-6, D2 and 30Cr13 by new design 6 t （ real 5.85 t） ingot mould show that the average yield of 6 t ingot is 86.47%, as compared with the average yield 79. 71% of 5 t ingot, it increases the yield of products by about 7 point of percentage,.

关 键 词：6 t锭模 帽口 锥度 D2、30Cr13钢 锻材 成材率 

分 类 号：TF764[冶金工程—钢铁冶金]