The characteristic of Aluminum Alloy Ceramic Electroplating Cylinders of Jaiway:
1, Prolonging engine service life: Ceramic electroplating can strengthen the hardness and wear resistance of the cylinder wall and also increase surface oil storage. When the piston is in reciprocating motion, the ceramic powder can keep a layer of oil film on the surface of the cylinder to maintain good lubricating effects and reduce friction.
2, Improving thermal diffusivity: In addition to the good wear resistance, with the metal layer material and very thin coating, the effects of the ceramic electroplated coating on heat conduction can be neglected due to direct electroplating on aluminum alloy cylinder with good thermal conductivity instead of the cast iron cylinder or sleeve with poor thermal diffusivity.
3, Reducing emissions and noises: The expansion coefficient of aluminum cylinder is similar to that of aluminum alloy piston, so the matching with higher air tightness can be selected as to make the gasoline completely combusted, which has lower oil consumption and reduced emissions as well as less noises and hazardous gases emitted by incomplete combustion.
4, Lessening weight: As it is directly electroplated on the inner bore of the integrated aluminum alloy cylinder without cast iron sleeve, the cylinder weight is lessened.
5, Engine performance: With the improvements of the air tightness and the thermal diffusivity, problems on the thermal diffusion during starting and running vehicles at high speed are settled, and the engine horsepower, the torque curve and other performances are significantly enhanced.
| Item |
Cast iron |
Ceramic Electroplated Coating |
| Oil lubricating mode |
Released alloy or compounds |
Ceramic particles |
| Hardness(Hv) |
300 |
500—700 |
| Wet friction factor |
0.04 |
0.01 |
| Friction amount(um/100hrs) |
100 |
2 |
| Major advantages |
Easily rebored |
wear-resisting, lubricating |
| Major disadvantages |
*short lifetime; *poor thermal diffusivity, nondurable; *high engine temperature; performance can not be upgraded |
*can not be rebored |
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