When the internal combustion engine is running, piston moves up and down in the cylinder to convert combustion energy to mechanical action. Piston rings seal the combustion chamber and is subject to constant friction during motion. Conventional coating deposited by electroplating cannot meet the friction reduction requirement.
|Steel / Cast Iron
|6~8μm (up to 50 μm)
i-TAC® deposits a thick layer of ta-C (tetrahedral amorphous carbon) coating with hardness up to 3,500HV on the piston ring. It reduces the coefficient of friction to less than 0.1, increases airtightness, improves fuel efficiency, reduces carbon emission, extend piston ring lifespan and reduces maintenance needs.
|Product：Cast-Iron Piston Ring
|HF 1~HF 3
|Inhouse twisting bonding force testing instrument
|Coating no peel with 90°twist
|Coating no peel off under 350℃ for 2h
|Mitutoyo surface roughness measuring instrument
|Fisher Micro Hardness Indentation Tester
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