fettling是什么意思,fettling怎么读,
1.The phosphorus content of the end point in the first heat of converter steelmaking after fettling was higher than normal operation, because of the fettling material in the converter.
转炉补炉后第一炉钢,由于加入了大量的补炉料,补炉第一炉后成渣过程和转炉渣的成分发生变化,造成转炉终点磷偏高。
2.The phosphorus content of the end point in the first heat of converter steelmaking after fettling was higher than normal operation, because of the fettling material in the converter.
转炉补炉后第一炉钢,由于加入了大量的补炉料,补炉第一炉后成渣过程和转炉渣的成分发生变化,造成转炉终点磷偏高。
3.It is an effective way of eliminating the occurrence of silicosis in fettling workers by substituting silica with limestone as molding material in steel casting factory.
铸钢工艺中采用石灰石砂代替石英砂是一种有效的消除清砂工矽肺的措施。