Patent ID: 9610707
Date: 2017-04-04
CPC Classifications: B27H,B27N,B29K

Claim:
1. A method of molding a wood fiber board, comprising the steps of: conveying a wood fiber board into a chamber of a forming station, the chamber having a hollow lid; supplying steam from a steam supply to the chamber to directly contact the wood fiber board and heat the wood fiber board to a thermal softening point of the wood fiber board, the steam supplied to the chamber expanding inside the chamber to reduce in temperature and moistening the wood fiber board; heating an inside of the hollow lid of the chamber with steam from the steam supply so that the hollow lid has substantially the same temperature as the steam supplied to the chamber for expansion and a higher temperature than the reduced temperature of the expanded steam inside the chamber; conveying the softened wood fiber board from the forming station to a press; and pressing and deforming the softened wood fiber board in the press to form a door skin.