刨花板板坯预压回弹率的研究

本研究对刨花大小与形态，密度，施胶量，以及预压温度，保压时间，压缩厚度六个因素与板坯预压后厚度回弹率的关系进行了试验。试验结果证明，木材的材料属性和刨花刚性下降是引起回弹的主要原因，刨花的大小与形态、密度，胶施量等预压条件对板坯的回弹率都产生影响。适当的工艺措施可以减少预压板坯的厚度回弹率。

Study on Spring back of Particleboard Mat after Prepressing

The relation among six factors (particle size and particle geometry, board density, resin consumption, prepressing temperature, closing time and compressing thickness) and particleboard mat spring back after prepressing was studied. The results showed that wood properties and particle's rigidity decrease were the main reasons of the spring back; and that all of reconstituting factors (particle size and particle geometry, board density, resin consumption and prepressing factors) affected the spring back. It concluded that proper technological counter measure could be adopted to reduce the spring back.