Method of manufacturing agglomerated facing boards

Details Method of manufacturing agglomerated facing boards Method of manufacturing agglomerated facing boards

B - Operations, Transporting

28

B

18/1021

B28B 5/02 (2006.01) B32B 27/04 (2006.01) B32B 33/00 (2006.01) E04F 13/14 (2006.01)

Patent

CA 1313740

METHOD OF MANUFACTURING AGGLOMERATED FACING BOARDS ABSTRACT OF THE DISCLOSURE A method of manufacturing facing boards containing hard ma- terials previously crushed to the size of granules or powder particles and bonded with synthetic resins is provided. The boards are intended notably for covering exterior walls. On an endless conveyor belt driven with a continuous linear motion and previously coated with a stripping agent, two layers of a binder consisting of synthetic resins of diffe- rent compositions are formed by deposition, the external sur- face which is to constitute the ornamental surface of the facing board contacting the belt surface. Then, the band this formed by the two superimposed layers is fed by gravity with two types of granules such that the granules of the first type penetrate into the first binder layer and the granules of the second type penetrate into the second binder layer.

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