| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust gas recirculating member that has high corrosion resistance and prevents coating from affecting an internal combustion engine, and to provide a method for forming the coating of the exhaust gas recirculating member. <P>SOLUTION: The method for forming the coating of the exhaust gas recirculating member on at least a surface of an inner wall in which at least a passage is formed, in the exhaust gas recirculating member where the passage for recirculating the exhaust gas emitted from an engine combustion chamber into the combustion chamber is formed. The method includes a part manufacturing step (step S11) of manufacturing the gas exhaust recirculating member, an immersing step (step S12) of immersing the exhaust gas recirculating member into gasoline, and a heating step (step S13) of heating the gas exhaust recirculating member that is immersed into the gasoline to promote oxidation reaction and polymerizing reaction of the gasoline. <P>COPYRIGHT: (C)2013,JPO&INPIT |
