铸造纯钛抛光方法的研究  

Effects of Different Polishing Methods on Surface Roughness of Pure Titanium Castings

作　　者：李哲 肖茂春[2] 

机构地区：[1]北京瑞尔齿科,北京100080 [2]四川大学华西口腔医院修复科,四川成都610041

出　　处：《华西口腔医学杂志》2006年第3期214-216,230,共4页West China Journal of Stomatology

基　　金：四川省科委重点资助项目(1998)

摘　　要：目的探讨不同抛光方法对纯钛铸件表面的抛光效果。方法常规制作铸造纯钛试件35个,随机分为7组,除1个对照组外,其余6组分别用不同方法进行抛光处理。观察试件表面形貌,并测定表面粗糙度(Ra值),计算抛光前后的减重率(Wt%)及单位面积损失的厚度(H),比较各种抛光方法的抛光效果。结果用氧化铝和氧化铬抛光膏抛光纯钛铸件可取得良好效果;铸件酸洗后进行电解抛光,表面粗糙度有一定改善。结论氧化铝和氧化铬抛光膏可用于铸钛表面的机械抛光,电解抛光有一定效果,但电解工艺仍需改进。Objective To evaluate the effects of different polishing methods on surface roughness of pure titanium castings. Methods 35 pure titanium castings were devided into 7 groups, used for control, mechanic polishing and electrolytic polishing, respectively. Surface roughness （Ra value） of each castings was measured with a profilometer. Surface mierostrueture was studied by a seaning electron microscopy, and the weight loss （Wt%） and height loss on unit area（H） before and after polishing was calculated. Results The effects of mechanic polishing with aluminium oxide or chromium oxide were acceptable. Surface smoothness was improved with acid treatment followed by electrolytic polishing. Conclusion Aluminium oxide and chromium oxide can be used in mechanic polishing of pure titanium castings, and improvement should be made on electrolytic polishing methods.

关 键 词：钛 抛光 表面粗糙度 

分 类 号：R783.2[医药卫生—口腔医学]