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CYLINDER LINER
It is an important component which provides the sealing between the engine combustion room and sump while the vacuuming, compression, explosion and sweeping processes are forming in the cylinder during the running of the motor. CHROME PLATING, CR The electrodeposited hard chrome coating combines excellent wear resistance with high resistance to scuffing. This accounts for the superiority of chromed rings to uncoated rings and surface treated rings.
MOLYBDENUM COATING, MOL, MO To avoid scuffing the periphery of the ring is coated with Molybdenum, a process that has yielded excellent results. Molybdenum has a very high melting point (2620°C) and good thermal conductivity, factors which account for the high resistance to scuffing and scoring.
PLASMA SPRAY COATING, PS Plasma spray coatings, which possess high wear, scuff and breakout resistance and high inherent strength, while causing only limited cylinder wear, are today used very successfully in production.
PHOSPHATING, P The process is employed to speed up and improve bedding-in of the rings. The surface of the ring is transformed by chemical treatment to phosphate crystals.
NITRIDING, NT Surface treatment by Nitriding to reduce wear of steel compression rings and steel rails in oil control rings.
CHROMIUM-CERAMIC COATING, CK The CK coating withstands higher thermal and mechanical loading than existing chromium, molybdenum and plasma coatings, though these tried and tested coatings lose none of their significance.
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