首钢轴承钢连铸坯壳厚度变化及液相穴位置测定研究  

The Study on the Shell Thickness Variation and the Measurement of Liquid Core Position of the Bloom of Shougang Bearing Steel

作　　者：王坤[1] 王立峰[3] 张炯明[1] 王坚[2] 周剑波[2] 孙齐松[1] 张慧峰[1] 

机构地区：[1]首钢技术研究院 [2]首钢第三炼钢厂 [3]北京科技大学

出　　处：《首钢科技》2009年第6期12-13,30,共3页Shougang Science and Technology

摘　　要：通过射钉试验方法，在恒定的连铸机二冷条件下，测定200mm×200mmGCr15轴承钢在不同拉速下二冷段不同位置的坯壳厚度，由此推算出连铸坯凝固终点位置，为评价连铸机综合冷却能力、优化二冷制度和控制凝固终点提供了重要根据。In use of the method of pin shooting, under the constant shell thicknesses in different positions of the 200 mm × 200 mm measured in case of different casting speeds. Based on these data, of liquid core is calculated. These are the important basis to continuous caster, optimize the secondary cooling, and control the secondary cooling condition, the GCr15 bearing steel bloom are the solidification ending position evaluate the cooling ability of solidification ending.

关 键 词：轴承钢 连铸 坯壳厚度 液相穴长度 二冷制度 

分 类 号：TF777[冶金工程—钢铁冶金] TB43[一般工业技术]