摘要
通过含锑复合孕育剂与 BaSi及 75FeSi的对比试验，得出含锑复合孕育剂具有提高强 度和硬度，改善断面敏感性的结论。生产应用验证，该复合孕育剂可使化学成分在 3.87％ ～ 3 94％ CE、 0.25％～ 0.49％ Cr、 0.43％～ 0.52％ Cu成分范围内的铸件抗拉强度 达 290.5～ 335MPa，硬度达 210HB以上，可应用于无缸套缸体，满足耐磨性要求。
An experiment to compare the effect of antimon－ containing compound in oculant,BaSi and 75SiFe showed that Sb－ containing inoculant has the effect to increase strength and hardness,as well as,to improve section－ sensitivity.Appli cation of this inoculant in production proved that when composition was in the r ange of 3.87％～ 3.94％ CE,0.25％～ 0.49％ Cr,0.43％～ 0.52％ Cu,the tensile str ength of cast iron could reach the level of 290.5～ 335MPa,and the hardness of t he block proper could be 210HB and higher,so it could be used to make linerless cylinder block to meet the requirement of wear－ resistance.
出处
《现代铸铁》
CAS
2001年第2期53-55,共3页
Modern Cast Iron
关键词
低合金灰铸铁
含锑孕育剂
缸体
柴油机
铸造
low alloying gray iron
antimon－ containing inoculant
cylinder block
