| 摘要 |
In a process for preparing a cast cylinder bore for thermal coating, a cylinder crankcase is cast, those surfaces of the subsequent cylinder barrels which are to be thermally coated are roughened, the cylinder barrels are coated by a thermal spraying process, and the cylinder barrels are remachined to their final dimensions. The surface of the cylinder bore is roughened by a jet, preferably a water jet and/or liquid jet mixed with solid particles, and material of the cylinder bore is simultaneously removed. A material thickness, which may be between 0.020-0.140 mm but preferably is between 0.004 mm-0.006 mm, is removed during the roughening operation.
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