METHOD OF MANUFACTURING THE PRINCIPAL WORKING SURFACE OF A CYLINDER IN THE BLOCK OF CYLINDERS OF A INTERNAL COMBUSTION ENGINE, AND ALSO SUCH A CYLINDER BLOCK

摘要

There are the cylinder block crankshaft cases of the internal combustion engine on known method production cylinder surface, the cylinder inner wall cast cylinder crankcase (24) generated on its floating coat (30) passes through thermal spraying, wherein inert gas is used as atomizer gasoline, however, the layer of creation is often subject to corrode. In this in order to prevent, it is proposed that quality throughput heat spray coating layer material (15) be 8 to 22.5 flow velocity. This cylinder bearing face for providing a kind of cylinder block crankshaft case of internal combustion engine has layer 4. with wherein flash coating (30)5 to 25% porosity and oxide content is 0.5 to 5%. The coating has highly corrosion resistant.