The slagforming process occurs in stage of primary slag, bosh slag, tuyere slag and tapped slag, among which the most important stage is the bosh slag.
高炉造渣过程经历初渣、炉腹渣、风口渣和终渣等几个阶段，其中对高炉强化最重要的阶段是炉腹渣。
2
In order to keep the normal bath temperature and slagforming condition, the charge of pig iron should not be exceeded 10 % on middle and small converter.
中小型转炉内生铁块的加入量不应超过10 %，使转炉吹炼过程中保持正常的熔池升温和成渣状况。
3
The slagforming process and production of low sulfur pipeline steel X52 are described. In addition, further development and application of lf furnace functions are also discussed in the paper.