三种铸钛包埋材料对铸型尺寸的影响  

Influence of three types of titanium investments on the dimension change of casting mold

作　　者：余桂林[1] 李楠[2] 李友胜[2] 王贻宁[3] 

机构地区：[1]武汉科技大学医学院,武汉430065 [2]武汉科技大学耐火材料与高温陶瓷国家重点实验室培育基地,武汉430081 [3]武汉大学口腔医学院,武汉430072

出　　处：《口腔材料器械杂志》2010年第1期9-11,共3页Chinese Journal of Dental Materials and Devices

基　　金：武汉科技大学博士科研启动基金(J090097)

摘　　要：目的研究三种体系的铸钛包埋材料对铸型尺寸的影响。方法蜡型分别包埋在氧化硅系、氧化铝系和氧化镁系铸钛包埋料中,经900℃烧结后检测铸型的内外径、高度和厚度的尺寸变化。结果氧化铝系包埋材料引起的铸型尺寸变化最小,氧化硅系包埋材料收缩最大,氧化镁系包埋材料的铸型变化在两者之间。结论氧化铝系铸钛包埋材料的铸型尺寸变化最小,是一种较理想的铸钛包埋材料。Objective To study the dimension change of casting mold invested by SiO2 , Al2O3 , and MgO-based titanium investment and heated to 900℃. Methods To examine the dimension change of casting mold in diameter, height and thickness, after wax molds were invested by SiO2 , Al2O3 , and MgO-based titanium investment and heated to 900℃ respectively. Results The dimension change of mold invested with Al2O3 -based titanium investment was the least,and the dimension change of mold invested with SiO2-based titanium investment materials was the most, and MgO-based titanium investment was between them. Conclusions The dimension change of mold invested with Al2O3-based titanium investment is the least, and Al2O3-based titanium investment is a good investment.

关 键 词：包埋材料 铸型 三维重建 

分 类 号：R783[医药卫生—口腔医学]