Process for imparting surface-structures to wood-cement boards

Details Process for imparting surface-structures to wood-cement boards Process for imparting surface-structures to wood-cement boards

1982-08-18

1984-08-28

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With reshaping or surface embossing of formed article

264293, B29J 504

Patent

active

044683618

ABSTRACT:
A process is created for incorporating surface structures into wood-cement boards which are pressed during cement hardening in a batch press and then are kept in clamping apparatus in the pressed state for a substantial length of time.
In the invention the wood-cement boards freed from their plates and after their storage in the clamping apparatus are fed to a calendering system of which the calendering rolls are provided with a surface structure, the wood-cement boards moving between the calender rolls and being provided by these with surface structures on one or on both sides.

REFERENCES:
patent: 1634462 (1927-07-01), Mallauer
patent: 2171155 (1939-08-01), Wright
patent: 2531016 (1950-11-01), Waechter
patent: 3271492 (1966-09-01), Elmendorf

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