合成铸铁工艺的试验研究  

Productive Experimental Study of Synthetic Cast Iron Process

作　　者：司乃潮[1] 张芳芳[1] 姜金文 

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013 [2]上海柴油机股份有限公司铸造分公司,上海200432

出　　处：《铸造》2006年第8期799-802,共4页Foundry

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.

关 键 词：合成铸铁 废钢 增碳 复合孕育剂 

分 类 号：TG251.1[金属学及工艺—铸造]