PREHEAT CHAMBER OXIDATION PROCESS

摘要

A process for coating a part comprises the steps of: loading a bond coated part into a load chamber; moving the bond coated part from the load chamber to a preheat chamber; subjecting the bond coated part to a preheat treatment with controlled conditions to promote a specific thermally grown oxide layer to form; and moving the bond coated part with the thermally grown oxide layer to a electron beam physical vapor coating chamber for ceramic coating.