镶铸法+精密铸造制备钛合金细长孔工艺研究  

Slender Hole Process of Titanium Alloy Prepared by Inlay Casting+Investment Casting

作　　者：孙冰 韩云飞 乔海滨 孙宏喆 程亚珍 穆建文 李渤渤 SUN Bing;HAN Yunfei;QIAO Haibin;SUN Hongzhe;CHEN Yazhen;MU Jianwen;LI Bobo(Luoyang Shuangrui Precision Casting Titanium Co.,Ltd.,Luoyang 471000)

机构地区：[1]洛阳双瑞精铸钛业有限公司,洛阳471000

出　　处：《特种铸造及有色合金》2024年第6期858-861,共4页Special Casting & Nonferrous Alloys

摘　　要：采用镶铸法+精密铸造技术制备带细长孔钛合金试样,并对镶铸试样进行组织分析和微观形貌、化学成分等检测,研究不同镶铸比条件下镶铸界面结合的形态及结构特征,分析酸洗对镶铸管的浸除效果。结果发现,镶铸试样的细长孔均能完整成形,且随镶铸比增大,镶铸界面熔合效果越好;当镶铸比达到20∶1时,界面分布一层细小致密的网状熔合层,通过酸洗工艺能够完全浸除。Titanium alloy slender hole specimens were prepared by inlay casting+investment casting,and microstruc⁃ture analysis,micro-morphology and chemical composition were carried out to investigate morphology and structural characteristics of the inlay cast interface bonding under different inlaying ratio and analyze the leaching effect of pickling on cast tube.The results indicate that the slender holes of inlay cast specimens can be formed completely,and the fusion effect of inlaid interface is desirable with the increase of inlaying ratio.When the inlay ratio reaches 20∶1,a fine and dense mesh fusion layer is distributed on the interface,which can be completely removed by pickling process.

关 键 词：钛合金 镶铸法 细长孔 

分 类 号：TG249.5[机械工程—精密仪器及机械] TG146.23[金属学及工艺—铸造]