COMPRESSION OF LOG PROCESSING METHOD

PURPOSE: A compression processing method is provided to increase hardness and strength of a log by forcibly pushing the log into a compressor with a smaller diameter to decrease the volume of the log and increase the density of fiber textures. CONSTITUTION: A log(10) is pushed into a piston(4) in the axial direction of a compressor frame(2) by holding the end of the log(10) with a jaw(9). A vibration from an ultrasonic wave generator(15) is applied to the log(10) through an ultrasonic concentrator(16). A vibrating force is divided into V1, V2 and V3, wherein V1 is in the axial direction of a forming dice(3), V2 is perpendicular to the forming dice(3), and V3 is in the tangential direction of the forming dice(3). Static pressure and vibration compress the log(10) to have the same strength and hardness. Fiber density and strength of the log(10) are changed while log texture is not fractured. A cam guide(13) assists the log(10) to be inserted easily without damage.