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一、试验为了研究结晶器保护渣的熔化和流动行为,在新日铁君津厂2号连铸机上进行了实机测试和添加示踪保护渣的试验。为了弄清因凝固坯壳与结晶器壁粘结引起拉漏的机理,还调查了拉漏板坯。 1.实机测试在连铸低碳铝镇静钢的过程中,改变保护渣成分和浇铸条件,研究结晶器保护渣特性、结晶器的散热和其他因素。浇铸期间的测试项目如表1所示。在浇铸中连续测定了结晶器铜板温度、结晶器冷却水入口与出口温差、结晶器下方的保护渣膜厚度以及其他项目。测量数据和操作数据都由高速模拟扫描仪按一秒钟的间隔记录在
First, the test In order to study the melting mold mold flux and flow behavior, carried out in the Nippon Steel Junjin Plant No. 2 continuous casting machine test and add tracer mold flux test. In order to clarify the solidification of the shell and the mold wall adhesion caused by pullout mechanism, also investigated the pullout slab. 1 real machine test In the process of continuous casting of low carbon aluminum killed steel, changing the composition and casting conditions of mold powder, mold flux characteristics, mold cooling and other factors. Test items during casting are shown in Table 1. In the casting continuous determination of the mold copper temperature, mold cooling water inlet and outlet temperature, mold flux below the film thickness and other items. Both the measurement data and the operation data are recorded by the high-speed analog scanner at one-second intervals