To enable to close an opening of a substrate passage without fault and as requested.
A substrate 1, used for exhausted gas purifying material for purifying components of exhausted gas ejected out of a combustion chamber of an internal combustion engine, is produced by means of a shaping fixture 7, which has active area smaller than that of an end surface of the substrate and has several projections 8. A pushing process, in which the shaping fixture is pushed on the end surface of the substrate so that each projection can be inserted in a passage neighboring to a passage which should be closed, and end parts of bulkhead defining the opening of the passage that should be closed are gathered to be connected by means of each projection of the shaping fixture, is repeated several times with a position of the shaping fixture toward the end surface of substrate shifted every time. In the first pressing process, the shaping fixture is pushed on a pre-determined area of the end surface of the substrate. In the rest processes, the shaping fixture is pushed on the end surface of the substrate so that a part of projections of the shaping fixture can be inserted in the passage in which projections are inserted in a front-end pushing process.
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HIROTA SHINYA
Jun Tsuruta
Masaya Nishiyama
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