- 2018-5-17Influence of copper corrosion test on gear pump of hydraulic
The following items should be noted in the copper corrosion test for determining whether there is active sulfur in oil. (1) the choice of copper sheet used in the experiment: the copper sheet used ...
- 2018-5-17Can the active sulfur in oil be filtered by hydraulic oil fi
The active sulfur in the oil is also called sulfur corrosion. Sulfur is usually transferred from raw oil to oil, which may be a very stable compound, or an unstable compound, which is not allowed in t ...
- 2018-5-17When the water content of the hydraulic oil is not qualified
When the water content of the hydraulic oil is not qualified, the general treatment methods are as follows. (1) insulating oil: the most stringent requirement for water content in insulating oil i ...
- 2018-5-15Change of viscosity of waste liquid in oil recovery and filt
Hydraulic oil is mainly used for: 1. industrial hydraulic system, hydraulic oil is suitable for various types of hydraulic systems in manufacturing and industry. 2. mobile hydraulic transmission syste ...
- 2018-5-15Change of viscosity of waste insulating oil recovery and fil
When the waste insulating oil is moved by external forces, the nature of the internal friction between the liquid molecules is called viscosity. In physics, viscosity is explained by the interaction f ...
- 2018-5-15Requirements for the density testing of waste lubricating oi
The main significance of measuring oil density on production and operation is as follows. To calculate the weight of the oil in the container, the volume V and the density p of the oil are measured fi ...
- 2018-5-15Density detection for the treatment of oil filter equipment
The main quality requirements of hydraulic oil. 1. suitable viscosity and good viscosity temperature performance, in order to ensure that the working temperature change conditions can accurately and s ...
- 2018-5-15Density detection for the treatment of oil filter equipment
The main application areas of insulating oil, insulating oil and other liquid insulating medium need to test the dielectric loss angle and volume resistivity, such as the use of MS101Y insulating oil ...
- 2018-5-15Testing instrument for oil density and viscosity of transfor
The dielectric loss of transformer oil insulation oil at 90 degrees C should be less than 0.5%. Naphthenic base oil is a good material for the manufacture of electric oil because of its low pour point ...
- 2018-5-15Testing method for density viscosity of oil filter after fil
The oil filter is used to filter the waste hydraulic oil and the density of the oil is determined by densitometer. The densitometer method is based on Archimedes's law. When a densitometer sinks a liq ...
- 2018-5-15 Influence of hydraulic oil density and temperature proporti
Hydraulic oil is an excellent wear resistant hydraulic oil, specially designed to meet the requirements of various hydraulic equipment. This series of products can extend the service life of the oil / ...
- 2018-5-15Influence of density, temperature and viscosity of insulatin
Insulating oil requires low pour point and low viscosity at low temperature. In electrical equipment, oil is oxidized for a long time by the action of heat and oxygen under the action of electric fiel ...
- 2018-5-15Color comparison between new hydraulic oil and waste hydraul
Waste liquid pressure oil is mainly the oil products after the use of mechanical equipment, the chemical composition has changed, mainly the additives, antioxidants, antiwear agents and other additive ...
- 2018-5-15Turbidity change of oil product transparency after filtratin
The transparency of oil products is to observe the transparency of oil quality with naked eyes. The main factors affecting the transparency of oil products are external and intrinsic two aspects. Unde ...
- 2018-5-15Color judgement of oil filter for waste liquid pressure lubr
The recovery and utilization of waste liquid oil is advocated by the state. After being filtered by hydraulic oil filter, the waste lubricating oil will be reduced to new oil. Hydraulic oil is the hyd ...
- 2018-5-15Color judgement of filter oil for transformer insulation oil
The color judgement of transformer insulation oil is mainly based on the observation of naked eyes to determine the depth of oil color. The color of oil depends on the content of bitumen, resin and ...
- 2018-5-12How to test breakdown voltage after filtration of transforme
The oil quality test method is to determine the quality and performance of oil products. The indicators specified in the oil quality standards are closely related to the test methods adopted. Because ...
- 2018-5-11Oil recovery standard after filtration of transformer oil pu
The oil sample of transformer oil is the basis of oil quality test. If the oil sample is not correct, it is not representative, and the result of the test is meaningless, so the correct sampling is th ...
- 2018-5-11The main performance of electric oil for insulation oil puri
(1) physical properties. The general physical performance items are: appearance color, transparency, density (specific gravity), viscosity, flash point, condensation point, dip, interfacial tension, a ...
- 2018-5-11Edge oil is used as an indicator of insulation performance i
Insulation oil is mainly used in electrical insulation, mainly used in transformers, transformers, switches and other electrical appliances, the performance is mainly low temperature performance, oxid ...