Method and apparatus for making a molded article from a...

Details Method and apparatus for making a molded article from a... Method and apparatus for making a molded article from a...

B - Operations, Transporting

29

C

18/1131

B29C 43/56 (2006.01) B27N 3/08 (2006.01) B27N 5/00 (2006.01)

Patent

CA 2036584

The process for making a molded article from a nonflowable mixture of chip and/or fiber material and a thermally hardenable binder, includes pressing the mixture in a press with a mold closed on all its sides, hardening the mixture in the mold with thermal energy, and feeding a hot gas, especially steam, in the mixture during the pressing to supply at least a portion of the thermal energy required for hardening. To heat and harden the molded article in a minimum time, the hot gas is fed into the mixture in a direction substantially perpendicular to the pressing direction. A suitable apparatus for performing this process is described in which the mold cavity has walls containing feed ducts for the hot gas which feed the gas perpendicular to the pressing direction.

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