Corrugated paperboard manufacturing apparatus providing controllable heat and related methods

摘要: An paperboard making apparatus includes at least one heating plate having opposing first and second surfaces; electrically powered heater positioned adjacent the surface of plate; a take-up for advancing corrugated sheet along path travel so that heat is transferred to sheet. The preferably base, an electrical element on base. base mounted in closely spaced relation from radiates plate. Accordingly, conventional steam chests are not used their associated drawbacks overcome. Method aspects invention also disclosed.