NANJING KERUN LUBRICANTS CO., LTD.  

Product Name: Kerun Isothermal Stepped Quenching Oil for Heat Treatment Kr498 Model NO.: KR498 Usage: Machinery Appearance: Liquid Color: Yellow Environmental Protection: Yes Trademark: KERUN Transport Package: Bucket Specification: 170KG Origin: Nanjing, Jiangsu Product Description Product introduction:Isothermal stepped quenching oil is a special cooling medium for heat treatment. With the continuous improvement of industrialization level in China, the industrial upgrading of heat treatment industry is imperative, and higher requirements will be put forward for the quenching cooling medium in the key link. Therefore, reasonable and scientific allocation of isothermal stepped quenching oil has an important impact on reducing environmental pollution, improving product quality and enhancing the comprehensive competitiveness of heat treatment industry. Kerun's Isothermal stepped quenching oil has a high flash point, which can realize Martempering quenching, significantly reduce the quenching deformation of complex shaped workpieces, effectively improve the product precision and reduce the processing margin of the workpieces, significantly reduce the production cost, and the surface of workpieces after quenching is easy to clean, with excellent thermal oxidation stability and long service life under high temperature conditions. Quenching deformation is one of the three difficulties in quality control of heat treatment. KERUN®KR498 isothermal stepped quenching oil can significantly reduce the quenching deformation of thin and complex shaped workpiece such as automobile gear, motorcycle gear, clutch disc and bearing ring, thus improving the product accuracy, reducing the machining allowance of the workpiece and significantly reducing the production cost.ProductFeatures:1.Shortvapor film stage, fast coolingat high temperature, andrelatively slow coolingat low temperature, which entitle the bearing race with high and uniform surface hardness and enough hardening depthas well as control the deformation of the race.2.Goodthermal oxidation stabilitywhichkeepslong-term stable cooling characteristicsand long service life.3.Goodbrightness, lowoil consumption andlow cost of use.Product description:ItemKR498MethodMoisture, ≤0.03%GB/T11133Flash point (open cup), ≥240°CGB/T 3536Kinematic viscosity (40°C)98mm2/sASTM D7279Corrosion (Copper sheet 100°C×3h), ≤1ASTM D130Thermal oxidation stability, viscosity ratio, ≤1.25SH/T 0219Max. typical cooling rate @100°C, static80°C /sISO 9950