Method of and system for forming a fire door core

Details Method of and system for forming a fire door core Method of and system for forming a fire door core

2006-01-17

2006-01-17

Colaianni, Michael P. (Department: 1732)

Plastic article or earthenware shaping or treating: apparatus

Plural female mold cavities cooperating with single press...

Male-type press member

C425S405100, C425S405200, C425S430000, C425S434000, C366S013000, C366S014000, C366S015000

Reexamination Certificate

active

06986656

ABSTRACT:
A method and system of forming a fire door core are provided. Hydraulic binder and resin are supplied from raw material bins and mixed to provide a submixture. Exfoliated vermiculite is then mixed with the submixture to provide a mixture that is deposited into a plurality of compression molds. Each of the filled molds are pressed in a press at a predetermined temperature at a predetermined pressure for a predetermined period of time sufficient to harden the mixture into a hardened slab. The hardened slabs are then removed from the molds, impregnated with water or steam in a water impregnation assembly and dried in a drying assembly.

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