TAILIEUCHUNG - Lubricants and Lubrication Part 8

Tham khảo tài liệu 'lubricants and lubrication part 8', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Tab. Continued. Oxidation stability by rotating bomb modified N2-blown RBOT Siemens TLV 901304 duly 1999 . General Electric CEK 101941A Nov. 1999 85 min. of time in unmodified test . General Electric G EK 32568E May 1999 85 min. of time in unmodified test Alstom HTGD 90117 V0001U 7 2005 Alstom HTGD 90117 V0001U 7 2005 Testing according to DIN ISO Testing according toASTM ASTM-D 2272 Viscosity Index VI 95 min. 95 min. 90 90 - ASTM-D 2270 Atomic emission spectroscopy Zinc content 5 ppm 5 ppm 5 ppm - ASTM-D 4951 Filtrability Stage I min 93 Stage II min 85 ISO 13 357-2 378 I 13 Turbine Oils Neutralization Number KOH g sludge accordingtoDP 7624 Base Oils 1 Mineral oils or synthetic oils with additives to improve corrosion protection and aging stability additionally EP AW additives in the case of gearbox lubrication . 2 Petroleum lubricating oil - Synthetic Hydrocarbons with greater high temperature oxidation stability and R o inhibitors EP AW additives 3 Petroleum lubricating oil - Synthetic Hydrocarbons with greater high temperature oxidation stability and R o inhibitors 4 Refined mineral oils with additives mainly aging inhibitors and corrosion inhibitors no EP AWadditives . Other important specifications examples Westinghouse . 1250-5312-Steam Turbines 21 T 0591-Gas Turbines Solar ES 9-224-Gas Turbines 5 . Load Stage Flushing Turbine Oil Circuits 379 coolers to reduce the temperature of the filtered oil. It must also be possible to remove the oil from the tank with a mobile filter unit or centrifuge if water steam or other contaminants enter the system. For this the lowest point of the oil tank is normally fitted with a corresponding connector which can also be used to draw oil samples . Oil aging is also influenced by the frequency with which the oil is pumped through the circuit. If the oil is pumped too fast excessive amounts of air are either dispersed or dissolved problem cavitation in bearings premature aging etc. . Oil

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