密度对刨花板热压过程中表层与芯层压力的影响

Effect of density on the surface and central layers pressure of particleboard during hot-pressing

研究了密度对刨花板热压过程中表层与芯层压力的影响,并对不同密度刨花板热压过程中芯层压力与芯层温度的关系进行了探讨。结果表明,随着密度增大,热压过程中刨花板板坯表层与芯层的压力最高值增大;板坯芯层汽化段的温度高低与此阶段板坯芯层的压力大小有关,板坯密度越大,芯层压力越大,汽化段温度也越高。

The paper presents the research of density＇s effect on the pressure of surface and central layers,and discusses the relationship of central layer＇s pressure and temperature. Results indicate that the pressure maximum values of both the surface and central layers increase with the increasing density of particleboard mat ;the central layers temperature of evaporation stage is closely related to its pressure,and the temperature and the pressure of central layer is in direct proportion to the particleboard mat density.