New Mahle piston ring coating for high-output GTDI engines; chromium nitride using high-velocity oxygen fuel process
Green Car Congress
SEPTEMBER 16, 2015
The new top ring coating, also referred to as MSC312, uses chromium nitride applied through a high-velocity oxygen fuel (HVOF) thermal spray process. The thermal and kinetic energy of the flame can be produced either with burning mixtures of fuel gas and oxygen, or by using an electrical power source. cold gas methods (CGS).
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