刘绍康, 黄煌. Practice of Process for Decreasing Large Size Globular Oxides Inclusion (Ds) in Bearing Steel and Gear Steel[J]. Special Steel, 2008, 29(5): 41-42.
刘绍康, 黄煌. Practice of Process for Decreasing Large Size Globular Oxides Inclusion (Ds) in Bearing Steel and Gear Steel[J]. Special Steel, 2008, 29(5): 41-42.DOI:
The effect of process parameters such as arc furnace end [C]
refining slag
argon blowing
Als
shielding casting
liquid steel temperature and refractory material etc on occurred probability of Ds in CCr15 bearing steel and gear steel produced by 100t EBT DC EAF- 100 t LF/VD-300 mm × 340 mm billet process has been studied. The practice showed that with using higher end[C] (≥0. 10%C)
refining slag basicity 2.5~3.5
≥15 min soft argon stirring after vacuum treatment
controlling Als 0.011%~0.020%
favorable shielding casting and using excellent refractory materials
it was available to decrease large size globular oxides inclusions in steel.