Study on optimizing for methods of gluing of Chinese Fir wood

The optimum methods of gluing of Chinese Fir were studied from types of adhesives,spread,press,bonded time and grain patterns in this paper.The results shown that the effect of types of adhesives on the drying shear strength and wood failure of Chinese Fir were no significant.After treated in accelerated aging test,the shear strength and wood failure of the Chinese Fir bonded with API and PF still met the requirement of Japanese Agricultural standard for structural laminated timber,and that of specimens bonded with PVAc and UF didn’t met the standard.When Chinese Fir bonded with API,the effect of spread,press,pressed time and grain patterns on the gluability of Chinese Fir,and the effect of press and grain patterns on the gluability of Poplar were significant.The optimized spread,press,pressed time and grain patterns for the two species was 250 g/cm2,1.5MPa,50 min and a tangential face glued to another tangential face(T-T).