白李国, 李京社, 杨树峰, et al. Analysis on Internal Cracks in Fe-Cr-Al Alloy Electroslag Remelting Ingot and Improved Process Measure[J]. Special Steel, 2014, 35(1): 40-42.
白李国, 李京社, 杨树峰, et al. Analysis on Internal Cracks in Fe-Cr-Al Alloy Electroslag Remelting Ingot and Improved Process Measure[J]. Special Steel, 2014, 35(1): 40-42.DOI:
The effect of structure of electroslag remelting (ESR) mold
cooling intensity t voltage
current and slow- cooling method on internal cracks of 200 kg ESR ingot of Fe-Cr-Al alloy (/%: 0. 024C
0. 26Si
0. 17Mn
20.1Cr
5. 3Al
0. 05RE) has been studied by pilot-scale production. Results show that with the measures including modifying original mold bottom water box to indirect water-cooling unit
increasing inlet water rate
decreasing voltage and current respectively from original 5 400 A and 55 V to 5 000 A and 50 V to lower bath temperature
and using expanding perlite shielding material for holding and soaking
the macrostructure of ESR ingot is compact and uniform