What is the air-release capability of the lubricants?
Posted by Hamid Shakouri on 3rd Sep 2024
Air release refers to the
oil’s capacity to release air bubbles from the oil's bulk to the surrounding
environment. The air release test assesses the duration required for air
bubbles to ascend and exit an oil sample, conducted at a temperature of 54°C. Various
factors influence the air release outcome of oils, encompassing oil viscosity,
the molecular structure and composition of the base oil, an
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Viscosity Stability and its Importance in Hydraulic Oils
Posted by Hamid Shakouri on 3rd Sep 2024
Viscosity
Stability and its Importance in Hydraulic Oils.Maintaining viscosity
stability is a crucial factor for any lubricant, particularly hydraulic oils.
Equipment manufacturers (OEMs) suggest specific ISO-grade hydraulic oils, and the
hydraulic oil needs to retain its recommended ISO grade throughout its
operational lifespan.The degree of viscosity
stability is assessed through shear stability
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What is the Temperature operation of hydraulic oil?
Posted by Hamid Shakouri on 3rd Sep 2024
The significance of operating
temperature in hydraulic oil lies in the fact that within this specific
temperature range, the hydraulic oils maintain their viscosity within the
ISO-grade standards, ensuring optimal performance. Additionally, operating within
this temperature range contributes to a low oxidation rate, promoting a
well-functioning system and overall good operational conditions.
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What is the relationship between viscosity loss and the performance of hydraulic oils?
Posted by Hamid Shakouri on 3rd Sep 2024
There is a connection between the degree of viscosity
loss and hydraulic performance. When hydraulic oil experiences significant
shear instability leading to high viscosity loss, it can be detrimental to your
system. This is because the viscosity of the hydraulic oil may fall outside the
specified range for its viscosity grade. Increasing shear reduces the
high-temperature properties of the fluid.
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