Why do workpieces need to be quenched? Why do workpieces need to be quenched? What is the purpose of quenching? Zhengzhou Guoyun answers for you: Why quenching is needed and what is the purpose of quenching:
1. The purpose of quenching is to make the overcooled austenite undergo a martensitic or bainitic transformation, obtaining a martensitic or lower bainitic structure, then combining it with tempering at different temperatures to significantly enhance the steel's strength, hardness, wear resistance, fatigue strength, and toughness, thus meeting various mechanical parts and tools' different usage requirements. Quenching can also satisfy certain special steels' ferromagnetic properties, corrosion resistance, and other special physical and chemical properties.
2. The quenching process for workpieces involves heating metal workpieces to an appropriate temperature and holding them for a period of time, then quickly cooling them in water or oil. This method is called quenching. Common quenching media include saltwater, water, mineral oil, and air. Quenching can improve the hardness and wear resistance of metal workpieces. Therefore, it is widely used in various metals and parts requiring surface wear resistance (such as gears of various shapes, shafts, machine tool guideways, high-frequency pump tube quenching equipment selection and application).
Quenching technology is widely applied in modern machinery manufacturing industries. Important parts in machinery, especially steel components used in cars, airplanes, and rockets, are almost all treated with quenching. To meet various parts' diverse technical requirements, various quenching processes have been developed. For example, according to the treated area, there are whole, partial, and surface quenching; according to whether the phase change is complete during heating, there are complete quenching and incomplete quenching (for hypo-eutectoid steel, this method is also known as subcritical quenching); according to the content of phase change during cooling, there are分级quenching, isothermal quenching, and under-speed quenching, etc. Workpieces such as rolls, through quenching combined with tempering at different temperatures, can greatly increase the metal's strength, toughness, and fatigue strength, and achieve coordination among these properties to meet different customers' usage requirements.
3. Zhengzhou Guoyun Electronics produces high-frequency brazing equipment models ranging from 16kw to 250kw, which can be customized according to specific customer requirements. Technical support is available at 0371-67998706 or 13937100064. Visit their websites: www.guoyunwu.com for high-frequency brazing equipment, www.gaopinchang.com for shaft brazing equipment, and www.zzgpl.com for medium-frequency heating power supply.