Patent ID: 8623263
Filing Date: 2014-01-07
Classification: B29C,B29K

Abstract:
1. A process for curing a porous muffler preform defined by a plurality of glass fibers and a heat-curing thermoset or thermoplastic material applied to the plurality of glass fibers, the process comprising: retaining the muffler preform in a perforated mold; enclosing the muffler preform and the perforated mold in a chamber having a baffle positioned therein; introducing steam into the chamber at a temperature in the range of about 330° F. to about 390° F. and at a pressure in the range of about 90 p.s.i. to about 190 p.s.i.; and causing the steam to impact the baffle and change directions prior to entering the muffler preform through the perforated mold.