钛 ,具有极好的生物亲和性、机械性能和电化学性质 ,被认为是最有前途的可以成为外科和牙科所用的关节和植入物的生物材料。但这种金属的铸造有其弱点 :传统的制作易成型金属的方法是蜡模浇铸法 ,但是钛在高温时具有很高的氧亲和性 ,在凝固过程中发生体积的收缩及较小的密度使 Titanium, which has excellent biocompatibility, mechanical and electrochemical properties, is considered to be the most promising biomaterials that can be used as joints and implants for surgery and dentistry. But the casting of this metal has its weaknesses: the traditional method of making formable metal is wax casting, but titanium has a high oxygen affinity at high temperatures, volume shrinkage during solidification and small Density makes