Abstract:

There are 3 phases in hot-press forming for plant fiber tableware made by stone mechanic pulp. First, the model presses almost 75% water, second, the water among plant fiber cells is dried, and in the 3th phase the fiber is hardened when the wet raw material is heated near the temperature (160～180℃) of the model. During the practical production, the adjustment of hot-press parameters is mainly in the second period. This paper deduces the hot-press time-equation of plant fiber tableware which is tube-shaped based on heat transfer theory, analyses the relationship between parameters, and gives an application example.

Key words: Plant fiber, Tableware, Hot-press forming, Heat transfer, Control, Principle