000			01380nam a2200145Ia 4500
008			220216s9999 xx 000 0 und d
100			_aHo K K
245		0	_aProcessing of rubberwood
260			_bProceedings of the Rubberwood Utilization Seminar, Kuala Lumpur, Malaysia, 1982; p11-19 _c1982
520			_aStudies have shown that Rubberwood is easy to saw. The sawn boards can be machined to a fairly smooth surface, but are prone to bowing, spring and end-splitting. These may be due to the juvenile nature of the rubber trees and the presence of internal stresses which are further aggravated by the inclusion of pith. When the pith is excluded in the sawn timber, most of these defects can be minimised. The `turn around' sawing of the Rubberwood logs using the band resaw makes the exclusion of pith possible. However, the average recovery and the average production rates are lower than those of the `through and through' sawing by the frame gang saw. The seasoning defects during air-drying can be minimised by the use of heavy weighting on the stacks and by the absence of pith. In the case of kiln drying the warp relief treatment should be applied in addition to these two remedial measures. Rubberwood has low shrinkage and movement compared to most Malaysian timbers.
650			_aRubberwood
650			_aRubberwood processing
700			_aChew K T
942			_cBO
999			_c48085 _d48085