朱志欣李艾王秀兰. Process Practice for Production of Caterpillar Track Steel 35MnBM by 90 t EAF-LF(VD)-CC-CR Flow Sheet[J]. Special Steel, 2008, 29(2): 58-59.DOI:
φ70 mm products of caterpillar track steel 35MnBM(0.35C
1.25Mn
0.0018B
0.029Al
0.09V)was produced by 90 t electric arc fumace-LF(VD)refining -240 mm×240 mm billet concasting - continuous rolling process at Beiman Special Steel. With VD treatment and whole period shield casting practice the[N] was ≤78× 10-6
the rating of non- metallic inclusions in steel was 0~2
no hair crack was detected and the grain size
structure and hardenability of steel all met the requirement of standard