理化检验：物理分册2011，Vol.47Issue(9)：598-601,4.
顶尖淬火开裂原因分析
Analysis on Quenching Cracking in Sustain Top
燕样样1
作者信息
- 1. 陕西工业职业技术学院材料工程系,咸阳712000
- 折叠
摘要
Abstract
The reasons of quenching cracking in the big sustain top used in the universal grinder were analyzed through macroscopic inspection, metallographic examination, hardness testing and fracture analysis. The results showed that the cracking had the characteristics of longitudinal cracking and cross-sectional cracking in the large non-hardened parts. The critical reason was that there were loose, nonmetallic inclusions, serious netted carbide in the central of big sustain top, which weakened the strength of fragile split. The maximal shearing and axial tensile stress exceed the strength of fragile split when sustain top was quenched, which resulted in the longitudinal cracking and cross sectional cracking.关键词
顶尖/淬火开裂/纵劈/横断/热应力Key words
sustain top/quenching cracking/longitudinal cracking/cross-sectional cracking/thermal stress分类
矿业与冶金引用本文复制引用
燕样样..顶尖淬火开裂原因分析[J].理化检验：物理分册,2011,47(9):598-601,4.
