Particleboard is a widely used panel material because of its physical properties and low cost, the hot-pressing operation is the one of the most important stages of the whole particleboard production in which many physical processes are involved, such as mat moisture content and distribution, heat transfer. A number of factors are involved including resin type, press temperature, wood species and press closing time, pressure during pressing, Considering coupled heat transfer with resin release, we presented a mathematical model have been given and solve the modeling with the method of variable separation characteristics and function expansion method. The model has described the relation of center layer temperature changes with pressing times. It is helpful for further research of Internal change in hot-pressing.
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