发明名称 |
Titanium sheet covered with protective film superior in high temperature oxidation resistance and high temperature salt damage resistance, automobile exhaust system using same, and methods of production of same |
摘要 |
The present invention provides a titanium sheet covered with a protective film superior in high temperature oxidation resistance and high temperature salt damage resistance and a method of production of the same and an automobile exhaust system using the same. The titanium sheet covered with a protective film is formed on its surface with a protective film of a thickness of 1 to 100 μm where flake-shaped metal Al with an average thickness of 0.1 to 5 μm and average width or average length of 1 to 50 μm or grain-shaped metal Al with an average size of 0.1 to 30 μm is dispersed in 20 to 60 mass % silicone resin or silicone grease and comprised of Si: 15 to 55 mass % and C: 10 to 45 mass % and having a balance of unavoidable impurities. Preferably the titanium sheet of the substrate contains one or both of 0.5 to 2.1 mass % of Cu and 0.4 to 2.5 mass % of Al. The method of production is to brush or spray the above composition of a silicone resin on a titanium sheet to form a protective film and heat it at 150 to 300° C. for 5 to 60 minutes. |
申请公布号 |
US9011976(B2) |
申请公布日期 |
2015.04.21 |
申请号 |
US200611992911 |
申请日期 |
2006.10.05 |
申请人 |
Nippon Steel & Sumitomo Metal Corporation |
发明人 |
Otsuka Hiroaki;Fujii Hideki;Tokuno Kiyonori;Itami Yoshiaki;Domoto Takashi |
分类号 |
B05D1/12;C22C14/00;C09D5/10;C09D5/18;C22F1/18;F01N13/16;C23C26/00 |
主分类号 |
B05D1/12 |
代理机构 |
Kenyon & Kenyon LLP |
代理人 |
Kenyon & Kenyon LLP |
主权项 |
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 Al2O3, SiO2, 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. |
地址 |
Tokyo JP |