CAJ | 학술논문

鞍钢股份有限公司炼钢总厂四分厂3#板坯连铸机生产过程中，合金钢铸坯窄面经常出现纵向凹陷，影响连铸坯的表面质量，并造成轧材缺陷。分析了连铸板坯窄面纵向凹陷的形成原因，结合生产试验，通过采取优化结晶器足辊冷却水流量、结晶器锥度、结晶器窄边足辊布置及铸机拉速等措施，提高了连铸板坯的表面质量，有效地控制了铸坯窄面的纵向凹陷。
안강고빈유한공사련강총엄사분엄3#판배련주궤생산과정중，합금강주배착면경상출현종향요함，영향련주배적표면질량，병조성알재결함。분석료련주판배착면종향요함적형성원인，결합생산시험，통과채취우화결정기족곤냉각수류량、결정기추도、결정기착변족곤포치급주궤랍속등조시，제고료련주판배적표면질량，유효지공제료주배착면적종향요함。
Longitudinal pit defects often occur on the surface of narrow sides of alloye d steel strands cast by No.3 slab continuous caster in No.4 Branch of General Steelmaking Plant of Angang Steel Co., Ltd., which influences the surface quality of continuous casting slabs and then brings about the defects of rolled steel products. The causes leading to the longitudinal pit defects on the surface of narrow sides of continuous casting slabs were analyzed. Based on the pilot pro-duction, the surface quality of continuous casting slabs were improved and the longitudinal pit defects were controlled effectively by optimizing the flow of cooling water for the mould foot-roller, the mold taper, the installation of the foot roller at the narrow side of the mold and the casting speed.