Discussion. The quenching of metal can be conducted with different media. The quenching media available can be water, air, oil, or brine. Quenching is about trade-offs, and while the chemistry behind quenching can be complicated, getting the process right ensures parts will perform as designed. Quenching the arc refers to the stoppage of the arc and/or metal transfer. Quenching is the process of rapid cooling after heat treatment of a workpiece, while tempering is a process that involves heat treating to increase the toughness of iron-based alloys. Brine, water, mineral oil, air, and the like are the commonly used quenching media. A quench refers to the sudden loss of superconductivity when its temperature is raised. Minimizing the current will prolong the life of the contacts. Quenching also increases toughness of both alloys and plastics. Metallurgists at Paulo understand the trade-offs that come with making quenching decisions and can help you find the best heat treating solutions for your parts. After quenching in water, the material is the hardest it can get given the chemistry. Quenching definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. In the superconducting state, the resistance of the magnet coil windings is zero and hence no energy is required to maintain current flow. Although hard, the material is extremely brittle and subject to cracking. Quench definition, to slake, satisfy, or allay (thirst, desires, passion, etc.). So, the key difference between quenching and tempering is that quenching is the rapid cooling of a workpiece, whereas tempering is heat-treating a workpiece. However, because it is more gentle, it does not produce metal that is as hard or strong as steel quenched by water. Tweet. To remedy this, we temper the metal by heating the steel to a point where it becomes ductile. If you are having to break high voltages care must be advised to minimize the amount of current flowing at the time of contact opening to minimize the metal transfer. Look it up now! See more. Since oil quenching is a less violent technique than water quenching, the chance of producing internal stresses, distortion, or cracking is reduced. A quench occurs when there is a rise in the magnet's temperature resulting in a loss of superconductivity, i.e. The main benefit of quenching workpieces after heat treatment is the reduced effect it has on the workpiece’s microstructure, which can be more severe if it undergoes a slower cooling process. Martensite is … Compare quenching with annealing and normalizing, the main difference is the quick cooling, the purpose is to obtain martensite. 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