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September 30, 2022
When construction machinery performs field operations in cold winter, due to the low outdoor temperature and large temperature difference between day and night, the kinematic viscosity of conventional anti-wear hydraulic oil becomes very large at low temperature, which will cause the hydraulic pump to fail to start.
According to GB 11118.1-2011 HS viscosity grade, kinematic viscosity, viscosity index limit, combined with the Newtonian fluid characteristics of hydrocarbon liquids, it can be calculated that HS10, HS15, HS22, HS32 and HS46 at 100T, 90 degrees, 80 degrees, 70 degrees, 60 degrees , 50 degrees, 40 degrees, 30 degrees, 20 degrees, 10 degrees kinematic viscosity data, see table as below.
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