The moisture content of the wooden box is within the fiber saturation point of the wood. The bending property of the wood increases with the increase of the moisture content of the wood. When the density of the wood is small, the water content can be appropriately larger due to the low density of the wood and the moisture. Easy to rule out.

       The temperature of the material The bending property of the wood increases as the temperature of the wood increases. However, when the temperature of the wood is too high, the plasticity of the wood increases, and the hemicellulose in the wood degrades, reducing the strength of the wood.

       After the bending speed is softened, the linear square wool must be bent immediately. If the bending speed is too slow, the temperature of the wood is lowered and the plasticity is weakened, which affects the bending property of the wood. If the bending speed of the wood is too fast, the internal structure of the wood is too late. Damage due to the need to adapt to deformation.

       The relationship between the annual ring layer and the curved surface When the annual ring layer of the wood is parallel to the curved surface, the wood will not be destroyed under a large pressure; but when the annual wheel layer is perpendicular to the curved surface, under the bending pressure, the year The wheel layer is prone to slippage and reduces the bending properties of the wood.

       Sectional dimensions of wood The thickness and width of linear square timber are relatively large, and the wood tends to lose stability when bent. Therefore, in actual production, the width of the square wool can be used to make the form of multiple wool, when the linear square wool After bending, the cutting process is performed.