Aiming at decreasing the fluoride and sodium content of processing flux in Baoshan Iron and Steel co, the dephosphorization and desulfurization experiment during hot metal pretreatment was performed.
宝钢预处理熔剂中氟含量和钠含量较高，为此在实验室进行了铁水预处理脱磷、脱硫实验。
2
The polyvinylidene fluoride microporous film prepared by the invention is high in film strength and large in water flux with the sections which have a uniform and run-through spongelike structure.
采用本发明所制备的聚偏氟乙烯微孔膜，断面结构呈均一贯通的海绵状结构，膜强度高，水通量大。
3
Reducing content of hydrogen effect of fluoride, carbonate, active chide and rare earth oxide in weld by self-shielded flux-cored wire with CaF2-TiO2 MgO slag system is investigated.