Sunrise trade quenching medium quenching medium [supply], Jining quenching medium

Sunrise trade quenching medium quenching medium [supply], Jining quenching medium is provided by Sunrise trade. We are Weifang City Sunrise Trade Co., Ltd. (www.wfxusheng.net) located at: Shandong Weifang specializes in: quenching medium, NQ NQ Series Series quenching medium cooling properties of water-soluble quenching medium: cooling mechanism NQ series of water-soluble quenching medium : NQ-A, NQ-B, NQ-C by mixing various additives and polymer formed a viscous solution of poly no inverse solubility. When the red-hot piece quenched by the quenching water into the preparation of the medium from the quenching liquid is rapidly vaporized water interface, forming a layer of vapor film package in the workpiece appearance, because NQ-A, NQ-B, NQ-C main ingredient quenching medium is a polymer of high quality, easy to vaporize, it is gradually formed in the surface layer of thin gelatinous film was slow conduction of heat to the workpiece, the workpiece to avoid excessive thermal stress to reduce the deformation of the workpiece quenching medium manufacturers, when the workpiece absorbs heat from the vapor film is less than the heat absorbed by the solution from the colloid film, the film becomes unstable until the rupture surface direct contact with the solution, the cooling rate is rapidly increasing, and due to the additive effect of the film rupture occurs just supercooled austenite unstable region (600-400 degrees C), in order to avoid non-hardening martensitic transformation generated media supply, ensure that the workpiece surface hardness and hardenability depth. When the temperature was lowered to the workpiece so that the martensite transition region (400 degrees Celsius), because of the special role of quenching medium, here using gentle cooling, reducing the workpiece transformation stress effectively prevent quenching cracking. An ordinary quenching oil: strong cooling performance, oxidation stability, suitable for quenching bath heaters or protective atmosphere of bearing steel, tool and die steel, alloy steel and carburizing steel workpiece. Best temperature 50-80 ℃. 2, rapid quenching oil: cooling speed, oxidation stability, light medium, suitable for high-speed quenching cold, carburizing and other parts and large forging parts, large gears and hardened press quenching. Temperature 20-80 ℃. 3, fast bright quenching oil: fast cooling, oxidation stability, bright, good for bearing steel, tool and die steel and other structural steel hardening under protective atmosphere. Temperature 20-80 ℃.