Abstract:
Effect of filling ratio and melting speed on the quality of ESR ingot of H13 hot - work die steel was studied. Test result proved that appropriate increase of filling ratio and melting speed was propitious to the reduction of the mlcrosegregation of H13 hot - work die steel, so that the trausvesal impact toughness of the steel was improved.[著者文摘]
Key words:
H13 hot- work die steel , Microsegregafion, Transvesal impact Toughness, Electroslag , Filling ratio, Melting speed.