PURPOSE: To use in a severe environment and manufacture simply a honeycomb body of high strength of a bonding section by applying flux to the honeycomb body composed of a flat plate and a corrugated plate of heat-resistant metal and then coating them with molten aluminum.
CONSTITUTION: When a honeycomb body 1 composed by laminating a flat plate 2 with a corrugated plate 3 of heat-resistant is manufactured, first, flux 5 is applied to the flat plate 2 and the corrugated plate 3 and the honeycomb body 1 is formed, or the flux 5 is applied after forming the honeycomb body 1. Then molten aluminum is applied for coating to the honeycomb body 1 with the flux 5 on its surface. Successively the honeycomb body 1 is heated in the non-oxidizing atmosphere to diffusion bond the honeycomb body 1. In other words, an alloy layers 6 are formed on the surfaces of the flat plate 2 and the corrugated plate 3, and the above-said top layers are covered with aluminum layers 7. Then, aluminum on the surface of the honeycomb layer 1 is diffused inside a metal plate, and a bonding section (a) of the flat plate 2 with the corrugated plate 3 is diffusion bonded.
AOYANAGI HIKARI
SUGIMOTO SHIGETOSHI
TANAKA ATSUO
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