优化初轧工艺　减少批材裂纹  

Optimize Cogging Technology Reduce Cracks in Cogged Slab and Bloom

作　　者：李洪德[1] 胡林[2] 

机构地区：[1]鞍钢技术中心 [2]鞍山钢铁学院

出　　处：《鞍钢技术》1997年第10期15-20,23,共7页Angang Technology

摘　　要：鞍钢现行的初轧均热制度和轧制制度，必然在初轧坯表面产生裂纹。根据生产实践并结合现场观察，提出三条改进意见：（1）初轧方坯时，适当降低钢锭的均热温度并增加翻钢次数和轧钢道次；（2）初轧板坯时，适当降低板锭的均热温度并减少原有立轧部分的总压下量；（3）安装轧辊冷却水遮挡装置，减少冷却水的危害。The existing s0aking schedu1es and ro1ling schedules f0r c0gging atAISC leads inevitable1y t0 crack formation on c0gged b1o0m and slab sruface. Accordingto the production practice and practical observati0n 3 improved 0pinions have been putforward:to reduce properly soaking temperature 0f ingot and increase times 0f turnoverof rol1ed blo0m and r0lling passes during blo0m cogging process9 to reduce properlysoaking temperature of s1ab ingot and total reducti0n of the original edger rolling pro-cess during s1ab cogging process and to insta1 a sheltering device from cooling water f0rrolls and decrease harm fr0m co0ling water.

关 键 词：初轧坯 质量 裂纹 轧钢 均热 钢坯 

分 类 号：TG335.3[金属学及工艺—金属压力加工]