顾永振, 徐玉松, 田国建, et al. Effect of Recovery and Treatment Process of Die Steel H13 Cutting Scrap on Yield of Alloy Elements[J]. Special Steel, 2016, 37(3): 31-34.
顾永振, 徐玉松, 田国建, et al. Effect of Recovery and Treatment Process of Die Steel H13 Cutting Scrap on Yield of Alloy Elements[J]. Special Steel, 2016, 37(3): 31-34.DOI:
In order to recover and apply the cutting scrap of die steel H13 and increase the yield of Cr
Mo
V etc alloy elements
the die steel H13 is melted by return cutting scrap method in 50 t medium frequency induction furnace- LF- VD flowsheet. The effect of curing pressed block and low vacuum melting process on Cr yield and the effect of BaO content in CaO-BaO compound slag series on dephosphorizing results are analyzed. Results show that with curing pressed block treatment and melting on ≤1 333 Pa low vacuum condition the yield of Cr
Mo and V in cutting scrap increases to more than 96%
as compared with non-using curing pressed block treatment
the melting time decreases by 25 min/heat. During melting period
dephosphorization process is carried out by high basicity CaO-20% BaO compound slag series
the P content in products shall be controlled to 0. 01%.