Description
Product introduction:With the development of automobile, tractor manufacturing industry and large-scale mining equipment, the size and weight of heat-treated parts are increasing. In order to improve production efficiency, the quenching amount of primary parts is increasing, and continuous quenching automatic line is emerging, which leads to the development of high speed quenching oil. Fast quenching oil is quenching oil with additives added, and the cooling speed is faster than ordinary quenching oil.
Kerun's fast quenching oil has strong cooling capacity, high temperature cooling speed and moderate low temperature cooling speed, which can not only make the workpieces obtain high and uniform surface hardness and enough hardening layer depth, but also can better control the quenching deformation, and the surface of the workpieces after quenching is easy to clean, with good thermal oxidation stability and long service life. KERUN® KR-H28B fast & bright quenching oil is suitable for quenching of thick and large workpiece because of its short vapor film stage, high cooling speed and good hardenability.
Product Features:1.Short vapor film stage, cooling speed is higher than mechanical oil with good hardenability.
2.Less oil consumption, reduces the production cost
3.Stable cooling characteristic, long service life.
4.High flash point, Small volatility.
| Item | KR-H28B | Method |
| Moisture | ≤0.03% | GB/T 11133 |
| Flash point (open cup) | ≥180°C | GB/T 3536 |
| Kinematic viscosity (40°C) | 20-30 mm2/s | ASTM D7279 |
| Corrosion (Copper sheet 100°C×3h) | ≤1 | GB/T 5096 |
| Thermal oxidation stability | viscosity ratio | ≤1.45 | SH/T 0219 |
| Carbon residual added value, %, ≤ | 1.2 |
Cooling performance
(60°C, static) | Characteristic temperature
Max. typical cooling rate | ≥680°C
98°C /s | GB/T30823 |
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