重钢七厂4号板坯连铸机(原重钢二炼钢厂2号连铸机)经4个多月的改造,于1996年8月投入生产。原铸机配90t平炉单炉浇铸,改造后,铸机配50t转炉实现多炉连浇,铸机的工况发生了较大变化。自改造投产以来的一段时间内,连铸生产的最大问题是受三角区裂纹困扰,其生产能力未有效发挥出来,导致以后很长时期内工作都紧紧围绕在如何解决裂纹上。 No.4 Slab Caster Continuous Casting Machine (formerly No. 2 Steel Plant No.2 Continuous Casting Machine) was put into production in August 1996 after more than 4 months’ reform. The original casting machine with 90t flat furnace single furnace casting, transformation, casting machine with 50t converter to achieve multiple furnace even pouring, casting machine conditions have undergone major changes. During the period since the project was put into operation, the biggest problem in continuous casting production is plagued by cracks in the Triangle Zone. Its production capacity has not been effectively brought into play and the work in a long period of time has been closely centered on how to deal with cracks.