摘要
在厚大机床类产品的生产中,利用Ba含量在10%的高钡孕育剂进行多次孕育处理,在少加或不加贵重金属合金Cu、Mo等的情况下,性能和金相组织均达到HT300的要求。而且铸件本体硬度在HB190-220,均匀性好,很好地解决了铸件表面硬度与内部硬度差大的问题。
High barium inoculants (10%Ba) are used to carry on multiple inoculations to produce large and thick machine tool products whose performance and metallographic structure, with a little or without precious metal (Cu, Mo) alloys addition, meet the requirement of HT300. Moreover, the casting body has a good uniformity with its hardness ranging from HB 190 to HB220, which solves the problem of the big difference between surface and internal hardness.
出处
《铸造》
CAS
CSCD
北大核心
2013年第4期278-281,共4页
Foundry
关键词
厚大灰铸铁件
高钡孕育剂
包内孕育
随流孕育
large and thick gray iron casting
high barium inoculant
ladle inoculation
stream inoculation