By using this process to repair castings, there is no obvious separating line, no slag inclusion and gas hole between the welding zone and base metal. 用此工艺焊补铸件,焊补区域与基体间没有明显的熔合线,无渣孔、气孔等缺陷。
It was suggested that the technical process of ironmaking without slag hole in BF should be extended. 建议高炉推广无渣口冶炼的工艺流程。
The development of BF ironmaking without slag hole in China 国内高炉无渣口冶炼的发展
The hole size depends on the fluidity of slag phase in pellet and its filling condition to the hole in pellet. The amount and shape of iron phase depend on the reduction degree of pellet. 球团孔隙的大小取决于脉石所形成的渣相的流动性和渣对孔隙的充填状态:铁相的数量及形态则取决于球团的还原程度。