Mask member for placing on an engine body during the thermal coating of the internal cylinder bores and process using this masking member

摘要

Mask (4) for placing on an engine block (1) during thermal coating of cylinder bores (2) has a hollow cylindrical shape and agrees with the diameter of the bores to be coated. Preferred Features: The mask has a tubular outer part (5) and an insert (6). The mask and the insert lie on a circular surface along the cylinder bores to be coated. The insert protrudes over the outer part on the lower side. The insert is made of a metallic, ceramic and/or organic material.