METALLIC HONEYCOMB BASE MATERIAL, METHOD FOR PRODUCING THE SAME, AND METALLIC HONEYCOMB CATALYTIC CONVERTER

摘要

PROBLEM TO BE SOLVED: To provide a metallic honeycomb base material which exhibits excellent wettability with a wash-coating liquid, withstands a strong vibration or impact, exhibits excellent adhesiveness to a catalyst layer and has an oxide layer excellent in impact peel resistance and drop impact peel resistance and to provide a method for producing the metallic honeycomb base material, and a metallic honeycomb catalytic converter the catalyst layer of which is not peeled off even the strong vibration or impact is caused.;SOLUTION: The metallic honeycomb base material is coated with activated alumina containing 3-10 mass% silica. The surface of the covering layer has 0.3-3.0 μm arithmetic mean roughness Ra and 0.3-26.0 μm mean spacing RSm of the roughness profile irregularities. The method for producing the metallic honeycomb base material, and the metallic honeycomb catalytic converter using the metallic honeycomb base material are provided.;COPYRIGHT: (C)2010,JPO&INPIT