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Industrial gear pump lubricants
According to usage, industrial gear pump lubricants can be divided into general industrial lubricants, special oils and special oils. Ordinary industrial lubricants are used for machinery that has no special requirements, low operating temperature and load, and relatively mild working conditions. Such as machine tool transmission machinery, textile machinery, construction-roads, lifting, transportation, metallurgy, mining machinery and other industrial gear pumps.
Special lubricating oil is used to lubricate individual parts (certain parts, parts, machinery).
Special lubricating oil is used to lubricate industrial machinery, metal processing machine tools and other special gear pumps. Such as high-speed machinery (grinding machine spindle and bearing), industrial gear pump hydraulic system, gear transmission, metal cutting machine tool guide rail, steel rolling machine, steam turbine, compressor, etc.
1. Oil for high-speed machinery
For example, a high-speed machine tool spindle with rolling and sliding bearings, the higher the spindle speed, the lower the oil viscosity. When the load is low, the high-speed spindle is in hydrodynamic lubrication and boundary friction may occur. At this time, in order to reduce friction and wear, you can Use surfactant-type friction reducers and antiwear additives.
2. Hydraulic oil
Hydraulic oils used in industry can be divided into five groups.
(1) The properties of mineral oil without additives are close to ordinary industrial lubricants. Such as using the lubricating oil of a hydraulic jack.
(2) Lubricating oil containing anti-corrosion and anti-oxidant agents. The oil also contains anti-foaming agents, which has a wide range of uses, but is limited to hydraulic transmission. The anti-wear performance is not high.
(3) Hydraulic oils containing anti-corrosion, anti-oxidation and anti-wear additives are widely used in gear pump hydraulic systems.
(4) Hydraulic oil with excellent viscosity-temperature performance In addition to containing the same additives as the previous group of oils, there are also tackifiers for use in the hydraulic system of programmable precision machine tools.
(5) Lubricating oil used for hydraulic system and machine-made guide rails. The composition is similar to the three groups, and friction additives that can stabilize friction performance are added. It is used in the hydraulic system of the automatic production line of metal cutting machine tools and other high-pressure gear pumps. It can also be used as a general oil for hydraulic systems and guide rails.
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