Analysis of the Stem-fillet blend fracture of exhaust valve was conducted by means of macroexamination, microstructure examination, chemical composition analysis and hardness test.
This paper also analyzes the unfavorable influence on loaded force of web from consortion, creepage and prestress as well as provides relative measures and design suggestions.
It is proved that the pressmark of tooth root, the state of carbide and remanentelements in the material have different effects on the toughness of POwer hacksaw blades.
The method of synthesising terpinol with ion exchange resin catalysis was investigated. Effects of kind of solvent used, reaction temperature and reaction time on product output were studied.