射钉法测量坯壳厚度在板坯连铸机上的应用  

APPLICATION OF NAIL-SHOOTING TECHNIQUE IN THE SHELL THICKNESS MEASUREMENT OF SLAB CASTER

作　　者：周从锐 李源源 韦耀环 梁龙清 Zhou Congrui;Li Yuanyuan;Wei Yaohuan;Liang Longqing(Technique Center of Guangxi Liuzhou Iron and Steel Group Co.,Ltd.,Liuzhou 545002,China;Converter Plant of Guangxi Liuzhou Iron and Steel Group Co.,Ltd.,Liuzhou 545002,China)

机构地区：[1]广西柳州钢铁集团有限公司技术中心,柳州545002 [2]广西柳州钢铁集团有限公司柳钢转炉厂,柳州545002

出　　处：《冶金信息导刊》2018年第5期37-39,62,共4页Metallurgical Information Review

摘　　要：在柳钢板坯2号连铸机生产管线钢L415-1S时,采用射钉法在不同位置测量断面尺寸220mm×1500mm在1.27m/min拉速下的凝固坯壳厚度,进而确定液相穴长度以及凝固终点,并将测量结果与现有铸机模型计算结果进行对比,优化轻压下参数并应用于生产,最终较好地改善了铸坯内部质量.This article introduces in the production of pipeline steel L415-1S by No.2 slab continuous caster in Liugang, the solidified shell thickness of section size 220 mm×1 500 mm under 1.27 m/min drawing speed was measured by shooting nail method in different positions, and then the liquid core length and solidification end point were determined. The measuring results were compared with the existing caster model calculation results, and the light reduction parameters were optimized and applied to the production. Finally, the internal quality of slab is improved.

关 键 词：板坯 射钉法 凝固坯壳厚度 凝固终点 二级模型 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]