摘要
在中频感应电炉上进行合成铸铁的试验,以50%废钢+50%新生铁的炉料配比,用鳞片状石墨充分浸润的增碳工艺,抗拉强度普遍提高10～20MPa,壁厚敏感性(不同截面硬度差)ΔHBmax降低10～20HB,三角试片白口宽度在1～3mm。合成铸铁、复合孕育再辅之以低合金化的试验铸铁(Cu:0.35%～0.45%,Cr:0.15%～0.25%),与普遍铸铁相比,抗拉强度明显高一个牌号,并且机械性能波动范围不大。
Fifty percent scrap steel and fifty percent pig iron infiltrated by flaky graphite were melted in a medium frequency induction furnace for producing synthetic cast iron. The experimental results show that the tensile strength increases by 10-20 MPa and the hardness difference of different sections ΔHB decreases by 10-20 HB. The chill width of triangular sample ranges from lmm to 3mm. With compound inoculants and low alloying elements （0.35%-0.45% Cu, 0.15%-0.25% Cr）, the tensile strength of synthetic cast iron increases by a grade compared with that of common cast iron, and only a tiny fluctuation appears in mechanical property.
出处
《铸造》
EI
CAS
CSCD
北大核心
2006年第8期799-802,共4页
Foundry
关键词
合成铸铁
废钢
增碳
复合孕育剂
synthetic cast iron
scrap steel
recarbudzation
compound inoculants
