Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1987-02-10
1988-02-23
Goldberg, Howard N.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
295271, 29530, 29557, 29DIG16, 422177, B21D 5300
Patent
active
047261056
ABSTRACT:
A method for producing a metallic substrate used for an automobile exhaust gas purifying device, which comprises the steps of: preparing a heat-resisting steel member having a length and capable of containing therein other members; densely filling the heat-resisting steel member with easy-soluble material members and with stainless steel members for separating the easy-soluble material members from each other, to form a filled body; hot-working the filled body to reduce the cross sectional area thereof for achieving a metallic bond between the stainless steel members; cutting the filled body to a predetermined length; and removing the easy-soluble material from the filled body by a chemical and/or an electrochemical treatment for boring throughholes to expose catalyst carrier-destined surfaces of the stainless steel.
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patent: 4417908 (1983-11-01), Pitcher, Jr.
patent: 4521947 (1985-06-01), Nonnenmann et al.
Omura Keiichi
Tendo Masayuki
Yamanaka Mikio
Goldberg Howard N.
Nippon Steel Corporation
Wallace Ronald S.
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