Method and apparatus for joining fixing elements on the mask frame of color TV tubes

摘要

After positioning, the fixing elements (3, 9) are welded by laser beams from at least one laser source which is located outside the screen unit so that before welding the laser beams pass through the glass wall of the screen unit. The apparatus includes a laser source located outside the screen unit (4) so that before hitting the fixing disk (9) the laser beams (8) pass through the wall (7) of the screen unit.