Process for fixing wooden articles pressure treated with...

Details Process for fixing wooden articles pressure treated with... Process for fixing wooden articles pressure treated with...

B - Operations, Transporting

27

K

9/70

B27K 5/04 (2006.01) B27K 3/32 (2006.01)

Patent

CA 1324708

PROCESS FOR FIXING WOODEN ARTICLES PRESSURE TREATED WITH CHROMATED-COPPER-ARSENATE ABSTRACT OF THE DISCLOSURE This invention is directed to a process for accelerating the fixation of chromated-copper-arsenate (CCA) preservative in wooden articles. The invention particularly pertains to a process of fixing CCA in softwoods such as lodgepole pine, so that it does not leach. A process of fixing chromated-preservatives in freshly treated wood by applying moderate heat to the treated wood while initially maintaining the treated wood in a highly humid or saturated atmosphere, and subsequently maintaining the atmosphere about the freshly treated wood at a controlled equilibrium moisture content level.

593023

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