In order to obtain higher and stable vermicularity, it's necessary to keep the sulphur content of the base iron melt in the range of 0.01~0.03% by desulphurizing treatment in ladle, adopt cored wire injection vermicularizing process and strict test and co
In order to obtain higher and stable vermicularity, it's necessary to keep the sulphur content of the base iron melt in the range of 0.01~0.03% by desulphurizing treatment in ladle, adopt cored wire injection vermicularizing process and strict test and co
国外为获得高蠕化率，一般采用炉外脱硫，使原铁液硫量（质量分数）稳定在0.01%~0.03%，并采用喂丝蠕化处理法和严格的检测手段。