초록 ▼

Method of fabricating and assembling metal catalytic converter catalyst substrates by sequentially laying strips of foil of predetermined widths onto a strip of sheet metal as the latter is formed into a single seam tube about the layers of foil to contain and restrain same, seam welding the tube al

Method of fabricating and assembling metal catalytic converter catalyst substrates by sequentially laying strips of foil of predetermined widths onto a strip of sheet metal as the latter is formed into a single seam tube about the layers of foil to contain and restrain same, seam welding the tube along its length, and cross cutting the tube and contained layers of foil into predetermined lengths to form catalyst substrate units.

대표청구항 ▼

A method of fabricating and assembling a metal catalytic converter catalyst substrate of predetermined cross-sectional profile comprised of a tubular sheet metal shell containing layers of metal foil, said method comprising the steps of (1) initially forming a strip of sheet metal stock of predeterm

A method of fabricating and assembling a metal catalytic converter catalyst substrate of predetermined cross-sectional profile comprised of a tubular sheet metal shell containing layers of metal foil, said method comprising the steps of (1) initially forming a strip of sheet metal stock of predetermined width into a concave shape (2) sequentially laying strips of metal foil of predetermined widths onto the concave sheet metal strip so as to assemble layers of foil thereon conforming to said predetermined profile, (3) finally forming the strip of sheet metal stock about the layers of foil into a single seam tube conforming to said predetermined profile, (4) sealingly joining the seam of the tube along the length thereof, and (5) cross-cutting the tube with the layers of foil therein to predetermined lengths so as to form catalyst substrate units therefrom.