硅锰钼耐热球铁的研制  

Research on Heat-resist Si-Mn-Mo Ductile Iron

作　　者：戴斌煜[1] 

机构地区：[1]南昌航空工业学院材料科学与工程系,江西南昌330034

出　　处：《铸造》2006年第12期1291-1293,共3页Foundry

摘　　要：根据钛合金成形模具的技术要求,研制了一种高温力学性能较好的中硅锰钼球铁模具材料。通过选择合适的化学成分,适当提高锰的含量,并采用合理的孕育和热处理工艺,所获得的中硅锰钼球铁高温硬度比中硅钼球铁提高33%。采用酯硬化水玻璃砂消失模铸造工艺制造的钛合金成形模具,能满足600～800℃下成形的技术要求。According to the technical requirements of forming die for titanium alloy, a kind of ductile iron with excellent elevated temperature mechanical properties was studied. By designing composition, adopting rational inoculation and heat treatment process, the elevated temperature hardness of Si-Mn-Mo were 33% more than Si-Mo alloyed ductile iron. The forming die producing by using the ester setting sodium silica bonded sand for lost foam casting process can meet the technical requirements at 600-800 ~C.

关 键 词：中硅锰钼耐热球铁 钛合金 成形模具 消失模 

分 类 号：TG255[金属学及工艺—铸造]