METHOD TO PREVENT OR REDUCE FORMATION OF MAGNETISM IN TWO ADJACENTLY LOCATED SAW BLADES ROTATING IN OPPOSED DIRECTIONS, AND A DEVICE FOR UTILIZATION OF THE METHOD

摘要

A method and device for preventing or reducing formation of magnetism in two adjacently located saw blades rotating in opposed rotary directions in relation to each other. Each saw blade is arranged having a number of substantially radially extending through grooves having an extension within the area of the rotary center for each saw blade and the surrounding saw teeth area. The grooves are arranged, when rotating, to remove air existing between adjacent planes of the saw blades. The through grooves are arranged having a substantially curved extension, but may also have a substantially linear extension. The grooves are arranged having a chamfer by the edge portions, arranged to increase removal of air from the space between the interacting saw blades.