Study On Cooling Properties Of Quenching Medium

Quenching is important in the heat treatment process after quenching, cooling is anessential part. After quenching is often not easy or impossible to be corrected or mechanicalprocessing, once the deformation and cracking and other defects, may not be able to restorepreviously faced scrapped, so quenching with a cooling medium is crucial. The depth andextent directly related to the control of heat treatment progress and quality of the work-piece.As in our heat treatment industry and long-term tendency to re-heat and light cold, resulting inquenching cooling technology development is slow, as the weak link in the heat treatmentindustry. We must attach importance to and vigorously strengthen the research and thedissemination and application of the quenching medium, and actively study the developmentof economic, security, non-polluting new quenching medium, changing the backwardness ofheat production technology, improve the quality of mechanical products.Cooling properties of quenching medium, usually refers to the heat capacity of the mediaaway from the work-piece surface. Quenching ability to obtain the required cooling rate,depending on the cooling capacity of the quenching medium. Quenching the coolingperformance of the media to understand and evaluate, in addition to the necessary physicalproperties of parameter detection, currently conducted in-depth research in two major ways,first, what parameters to characterize the cooling capacity of quenching media; how thedetermination of quenching medium cooling characteristics.The main subject of a factory quenching medium performance testing, optimization, andsummarizes the characteristics of the quenching medium, the formation process optimizationof the underlying data for the cooling performance; surface hardening with quenchingmedium to carry out regular inspection experiment, so to maintain a reasonable the use ofquenching medium. Elect a quenching medium to change its concentration and temperature totest the impact on the cooling characteristics. The subject test, quenching medium in use forsome time, of N32, WP quenching medium, the cooling capacity of the old media fell; theFQO quenching medium, the cooling capacity of the old media. Old of N32, WP quenchingmedium of low sample intensity, while old FQO quenching medium processing the samplestrength is slightly higher; discussed in detail the cooling characteristics of the WP2water-based quenching media.