Patent ID: 6178798
Filing Date: 2001-01-30
Classification: B60J,C21D,Y02P

Abstract:
An apparatus comprising:a roll forming machine;a heat treatment machine adjacent said roll forming machine;a plurality of rollers for moving tubular beam stock from said roll forming machine through said heat treatment machine along a predetermined path as determined by said rollers, said beam stock having a length;said heat treatment machine including a heater and a quencher adjacent said predetermined path, said quencher following said heater in said predetermined path;a roller drive coupled to said rollers for guiding said tubular beam stock through said heater and said quencher;a controller coupled to said heater and to said quencher for controlling the operation of said heater between an on/off state with respect to said length of tubular beam stock to form heat treated portions and non heat treat portions respectively; anda cutting machine at the end of the predetermined path for cutting said tubular beam stock into predetermined lengths at non heat treated portions of said beam stock.