Overview: The highly refined mineral oil as base oil, adding a variety of additives reminder refrigerant through a unique formula, brighteners, antioxidants and other refined. The main technical indicators vacuum quenching oil -1002A dragon dragon -1002B testing standards Flash point (open) ℃ ≥ 170 210 ASTM D92 kinematic viscosity (40 ℃) mm2 / s≤ 40 90 ASTM D455 Moisture None None ASTM D95 bright, level 1- 2 1-2 SH0564 saturated vapor pressure (20 ℃) ??KPa, ≤ 6.7 × 10-6 6.7 × 10-6 ASTM D323 thermal oxidation stability,, ≤ 1.25 1.25 ASTM D943 viscosity ratio main advantages: 1, anti-gasification ability less volatile, easily evacuated two, bright, good, easy to clean, after quenching, bright surface, less oil consumption 3, thermal oxidation stability, long life 4, vapor pressure, a small amount of evaporation, vacuum heat treatment does not pollute hearth furnace, does not affect the operation of the vacuum effect 5, stable cooling capacity, under vacuum conditions, ensure that the workpiece can be hardened 6, does not contain environmentally harmful substances, health