| 摘要 |
PURPOSE:To prevent the overheating of a sprayed deposit and to prevent various disadvantages due to overheating by forming a sprayed deposit while applying cooling to the internal surface of a cylinder bore by introducing a refrigerant into a passage formed by covering the opening of a cooling jacket. CONSTITUTION:The opening of a cooling jacket 3 provided to the periphery of a cylinder bore 2 is covered, e.g. with a cover plate 4, by which a passage connecting one end of the above jacket 3 to the other end is formed. A material having wear resistance and corrosion resistance is thermally sprayed while applying cooling to the internal surface of the above cylinder bore 2 by introducing a refrigerant into the above passage by which a sprayed deposit is formed. By this method, the cooling effect is increased and the overheating of the sprayed deposit can be prevented, and the shape precision of the cylinder bore can be improved. |
