Patent ID: 9011976
Filing Date: 2015-04-21
Classification: B05D,C09D,C22C,C22F,C23C,F01N,Y10T

Abstract:
1. A method of production of a titanium sheet covered with a protective film superior in high temperature oxidation resistance and high temperature salt damage resistance, the method comprising coating a silicone resin or silicone grease prepared to contain Si: 15 to 55 mass %, C: 10 to 45 mass % and a metal Al alloy on a titanium sheet by brushing or spraying to form a protective film on the surface of the titanium sheet, and heating said titanium sheet covered with the protective film at 600° C. to 800° C. for 30 minutes to 10 hours to form at least one or more compounds of Al 2 O 3 , SiO 2 , Ti—Si and Ti-Al at the interface of the protective film and titanium substrate, wherein the metal Al alloy of a thin flake shape with an average thickness of 0.1 to 5 μm and an average width or average length of 1 to 50 μm or of a grain shape with an average particle size of 0.1 to 30 μm is dispersed in the silicone resin in a ratio of 10 to 40 mass %, said metal Al alloy being one or more of an Al—Si alloy comprised of Si: 10.5 to 30 mass % and having a balance of Al and unavoidable impurities, an Al—Mg alloy comprised of Mg: 0.3 to 13.0 mass % and having a balance of Al and unavoidable impurities, and an Al—Mg—Si alloy comprised of Mg: 0.3 to 13.0 mass % and Si: 0.3 to 13.0 mass % and having a balance of Al and unavoidable impurities.