【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。更多还原

【Abstract】 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 ℃.更多还原