Plastic Injection and Blow Moulding - Manufacturing
KLEENTEK's proposal to those involved in Plastic Injection and Blow Moulding - Manufacturing
What problems are you having?
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Expected performance cannot be attained
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Malfunctions occur while testing
1. Issues for Industrial Hydraulic Oil/Lubricant
Hydraulic oils used for operating a speed governor and inlet valve are not fed directly into pump to move cylinder but first sent to a pressurized oil tank and the oil will be kept at constant pressure. The oil which was kept at constant pressure is used as source of pressure to move cylinder.
When oil is pressurized by air, a large amount of air is dissolved into oil following the Henry’s law. The dissolved air will be bubbled out when the oil returns to an oil tank in atmospheric pressure.
2. About Malfunctions of Hydraulic Valves
Sometimes visible along the near surface wall of a hydraulic oil tank are black traces due to carbons and/or blackish brown or brownish red sticky substances (oxidation products) They are generated because when air bubbles trapped in oil are subjected to adiabatic compression, they get heated to generate carbons through shearing of oil molecules or oil oxidation products. Filters cannot remove these oil oxidation products, resulting in malfunction of valves. With the Electrostatic Cleaner, ELC, such carbons and oil oxidation products can be eliminated.
3. Issues on Lubricating Thrust Bearings
Thrust bearings support the giant rotating water mills at a hydropower plant. These bearings are known to be protected by about 50 micrometer thick fluid lubricant films. If foreign materials and/or water penetrate this lubricant film, lubrication is disrupted.
4. Thrust Bearing on Lubricant Oil Control
Since a water mill rotates by water pressure, there is a possibility of water getting into the lubricant oil. Water not only initiates rusting or oxidizing oil, but also is a very poor lubricant. Top priority of thrust lubricant control is to eliminate water content and the contaminants that induce wear once migrated in the lubricant film.
To remove water contamination, the use of a Dehydrator Filter ('DH') is required. ('DH') Filter Element is a deep layer filter with about 50 micrometer porosity for filtering – since flow rate of the pump unit is configured to be low and slow, water is removed in a stable condition. Once the water is absorbed, the expansion of the fiber makes the filter mesh smaller so that the contaminants that are lesser than 50 micrometer may be also removed. Due to the low flow rate of the pump unit, no electrostatic charge is induced by oil by filter friction. In addition, the filter element wet with water would not retain electrostatic charges. EDH is the best unit for oil control, combining Dehydrator Filter ('DH') with Electrostatic Oil Cleaner ('EOC').
