材料热膨胀系数的发展与未来分析  

Analysis of the development and future tendency of material thermal expansion coefficient

作　　者：费业泰[1] 赵静[1] 

机构地区：[1]合肥工业大学,安徽合肥230009

出　　处：《中国计量学院学报》2002年第4期259-263,共5页Journal of China Jiliang University

基　　金：国家自然科学基金资助项目(50075023).

摘　　要：　全面分析了材料热膨胀系数的发展过程及现状,指出了传统热膨胀系数以圆柱棒体为标准之不足,提出了以球体为标准试件的精确膨胀系数新概念及要解决的理论与实际技术问题.In the precision engineering, the material thermal expansion coefficient is required to be more accurate. This paper comprehensively analyses the development and present conditions of material thermal expansion coefficient. After posing of the deficiency of traditional thermal expansion coefficient, it puts forward the new concept of accurate thermal expansion coefficient and technological problems, which need to be solved in theoretic and practical application.

关 键 词：精密工程 热膨胀系数 热膨胀系数新概念 热变形系数 

分 类 号：TH133.31[机械工程—机械制造及自动化]