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Heat Treatment
At Kerun, our R&D engineers and industry experts collaborate closely with our customers to determine the most suitable quenching medium according to different application requirements.
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KR328
With the continuous development of vacuum heat treatment technology, vacuum quenching has become increasingly common for workpieces. KR328 vacuum quenching oil has been widely applied in industries such as tool and die, bearings, springs, and oil pumps and nozzles.
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KR468G
Kerun has conducted in-depth research on two major challenges in bearing heat treatment—deformation and brightness—over years of service to the bearing industry. Based on this research, we specifically developed KR468G, a quenching oil tailored for bearings. This specialized oil is designed for quenching various types of inner and outer bearing rings, effectively minimizing ovality changes during the quenching and cooling process and maintaining excellent surface brightness.
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KR105
When using conventional quenching oils for thick, large workpieces or those with low hardenability, issues such as soft spots, low hardness, and insufficient hardened layer depth often arise. KR105 Over speed Quenching Oil, with a faster cooling rate than similar quenching oils, effectively addresses these issues. It enables the workpieces to achieve high and uniform surface hardness, along with sufficient hardened layer depth.
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KR218(H)
KR218H Fast Bright Quenching Oil offers high cooling speed and stable performance, making it particularly suitable for quenching large-module gears, large cross-section bearing rings, bearing rolling elements, textile components, sewing machine parts, and hardware tools. It performs exceptionally well under protective or controlled atmosphere conditions, ensuring effective quenching results for these types of workpieces.
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KR468C
In its years of service to the gear industry, Kerun has conducted in-depth research on quenching deformation issues in gear heat treatment. Based on this research, Kerun has developed KR468C, a quenching oil specifically designed for gears. This product is suitable for quenching gears in passenger cars, micro-cars, light and heavy-duty vehicles, motorcycles, and construction machinery. It effectively reduces changes in tooth profile, tooth direction, and flatness during the quenching and cooling process.
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KR118(H)
When using conventional quenching oils for thick, large workpieces or those with low hardenability, issues such as soft spots, low hardness, and insufficient hardened layer depth often occur. KR118H Fast Quenching Oil, with a faster cooling rate than similar quenching oils, effectively addresses these problems. It provides high and uniform surface hardness along with sufficient hardened layer depth, ensuring superior quenching results for these challenging workpieces.
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KR128
When thick, large workpieces or those with low hardenability are quenched with conventional oils, issues such as soft spots, low hardness, and insufficient hardened layer depth are common. KR128 Fast Quenching Oil, with a faster cooling rate than similar quenching oils, effectively eliminates these problems. It provides high and uniform surface hardness and ensures sufficient hardened layer depth, making it ideal for challenging quenching applications.
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KR468
Quenching deformation is one of the three major challenges in heat treatment quality control. KR468 Isothermal Graded Quenching Oil significantly reduces quenching deformation in thin-walled, complex-shaped workpieces such as automotive gears, motorcycle gears, clutch plates, and bearing rings. This improvement enhances product precision, reduces the machining allowance, and significantly lowers production costs.
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