Method of producing metal substrates used in purification of exhaust gas

Abstract

The present invention relates to an apparatus for mass production of metal substrates used in catalytic purification of exhaust gas, which includes: (a) an uncoiler part for continuously feeding a strip in the lengthwise direction, wherein said strip is coiled along a rotation axis; (b) a tubing processing part for changing the strip into the shape of a pipe by means of gradually putting pressure through multi-stage rolls onto both side edges of the strip in feed from said uncoiler part; (c) a feeder part, which is installed at one side of said tubing processing part, for feeding a pre-made honeycomb body at an equal interval to the strip being changed into the shape of a pipe; (d) a welding part, which is installed at the rear end of said tubing processing part, for welding into a unit both side edges of the strip in feed after being changed into the shape of a pipe; (e) a sizing part, which is installed at the rear end of said welding part, for evening the girth of the pipe in feed; and (f) a cutting part for cutting the pipe in feed from said sizing part into equal intervals.

Dependencies are inferred from the claim text.