Distortion Control by Cooling Process Design-Control of Quench Oils and Cooling Process Condition-
The most important issue for distortion control is the optimization of the cooling process regardless of quench media, of quite different cooling characteristics. Simultaneously, with optimum jig and tray design, various efforts are devoted to improve quench oils based on the worlds oldest JIS Quench Oil Evaluation standard(1965). Various quench oils have been developed to reduce distortion problems with joint efforts of suppliers and users. Periodical analysis and control of quench oil characteristics (H-value, L.P., viscosity and etc.) are the basis for production of quality works. Not only the selection of quench oil types, temperature, agitation and dipping time, but also typical characteristics of cooling processes should be optimized to reduce distortion. In this paper, ideas for a cooling process design will be introduced and several successful examples of distortion control technologies and methoare explained.
cooling cooling process quenching oils heat transfer coefficient distorion
Kiyoshi Funatani
IMST Inst.Mizuho-ku Nagoya Japan
国际会议
The Fourth Asian Conference on Heat Treatment and Surface Engineering(第四届亚洲热处理及表面工程大会)
北京
英文
400-404
2009-10-27(万方平台首次上网日期,不代表论文的发表时间)