Abstract:
A ceramic engine cylinder assembly of a car comprises a cylinder and a piston. A layer of ceramic material is coated on an inner surface of the cylinder; similarly, a layer of ceramic material is coated on an outer surface of the piston. When the piston is moving in the inner surface of the cylinder reciprocately, which can produce better lubricating effects so as to reduce the friction resistance and increase the power of the engine.
Abstract:
A method for ceramic electroplating a cylinder assembly of an internal combustion engine is provided, wherein an engine cylinder assembly's aluminum alloy based work-pieces having been inspected are chemically degreased and roughened, placed into an electroplating tank containing an electroplating solution and an additive, with blowing air for stirring the electroplating solution. After the work-pieces in the electroplating tank are suspended on cathode hook-bars, nickel plates are disposed in the anode and the right middle of the cylinder inner-wall is connected to a current auxiliary anode with a voltage, metallic ions and ceramic materials in the electroplating solution accumulate on the work-pieces and a electroplating layer is formed alternatively stacked with one metal alloy layer by one ceramic layer. The ceramic is electroplated on the surface of the aluminum alloy based work-pieces. After the work-pieces are taken out, cleaned and grinding, the parts having smooth and lubricative surfaces are gained.