This problem could be solved by using ferrite nodular graphite castiron.
采用以铁素体为基的蠕墨铸铁可解决此问题。
2
The result show that, the as-cast casting can completely meet the specification of Cummins standard about ferrite ductile iron after omitting annealing by high volume production provement.
经批量生产验证,取消了退火,铸态完全达到了康明斯标准规定的铁素体球铁的要求。
3
The quality control of cored-wire injection process used for production of as-castferrite nodular iron was described.