钛合金粉浆涂塑底层冠用耐火代型材料的高温抗压强度和耐火度测试  

Determination of High Temperature Compressive Strength and Refractory Degree of Die Material Compatible with Slip Casting Core of Sintered Titanium Powder

作　　者：邝先昊[1] 廖运茂[1] 巢永烈[1] 孟玉坤[1] 

机构地区：[1]华西医科大学口腔医学院

出　　处：《华西口腔医学杂志》1999年第2期163-165,共3页West China Journal of Stomatology

基　　金：国家自然科学基金

摘　　要：目的：测试自行研制的粉浆涂塑底层冠专用耐火代型材料高温抗压强度和耐火性能。方法：用耐火代型材料制作３个圆柱形试件，在１０００℃测定其抗压强度，制作截头三角锥试件，以１４２０℃、１４００℃、１３５０℃、１１００℃的顺序降低处理温度，确定耐火材料的实用耐火度。结果：耐火代型材料１０００℃高温时抗压强度为１７．８１ＭＰａ，实用耐火度高于１１００℃。结论：自行研制的钛合金粉浆涂塑底层冠用耐火代型材料（基础型）的主要高温性能可以满足钛合金粉浆涂塑底层冠的应用要求。Objective: The refractory die is the precondition for developing slip casting core of sintered powder. This study is to determine the high temperature properties of the refractory die material compatible with slip casting core. Methods: To prepare three cylindrical specimens (Φ10×15mm) and determine their compressive strength at 1000℃: to make four specimens in flat topped cone for determining the practical refractory degree by decreasing the pressing temperatures in a sequence of 1420, 1400, 1350 and 1100℃.Results: The compressive strength of this material was 17.8 MPa at 1000℃. Its practical refractory degree was higher than 1100℃.Conclusion: The high temperature properties of the refractory die material that we developed meet the demand of slip casting core of sintered powder.

关 键 词：耐火代型 钛合金 耐火度 涂塑底层冠 粉浆涂塑 

分 类 号：R783.2[医药卫生—口腔医学] R783.1[医药卫生—临床医学]