Behavior of a Particleboard Mat During the Press Cycle

This paper deals with the fundamental aspects of the particleboard pressing process. Specific topics discussed include 1) the structure of the particleboard mat–a discussion of the formulation of a mat model represented by the summation of the binomial distribution of the sums of the flake thickness over the area of the mat, 2) the particleboard press cycle–a discussion of the fundamental aspects involved in the development of adequate contact between particles by densification of the mat, and transfer of heat to the mat to enable rapid curing of the resin, 3) mat compression–a discussion of factors involved in compression of the mat, including the effect of pressure level on closing time, pressure relaxation after closing, stress relief in the compressed mat, and stabilization of compression deformation, and 4) an analysis of the three-layer board with emphasis on the various raw material and operational variables that favor the development of sandwich or layered characteristics.

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