METHOD FOR PRODUCING A warp beam and warp beam manufactured in accordance with this method.

摘要

In order, in a welded metal warp beam (1),… - to detect material and/or weld defects of the welding seams (9; 10) and their immediate vicinity on the same side as the beam flange,… and… - during its use, to prevent the beam flange or flanges (3; 4) from jumping off, for example as a result of pressure forces generated by the yarn cop,… it is proposed,… - after the welding of the beam-flange necks (5; 6) to the beam-tube ends, these being internally reinforced, to lathe-turn welding seams (9; 10), their immediate vicinity on the same side as the beam tube and their immediate vicinity on the same side as the beam flange approximately to the final dimension,… - subsequently to test the warp beam (1) by means of tensile forces directed along the longitudinal axis of the beam tube, the total force being greater than the force necessary for reaching the yield point of the metal in the beam-tube wall part (14) without internal reinforcement (15), in the final state, and being less than the force necessary for reaching the yield point of the metal in the beam-tube wall part (13) previously lathe-turned, in a state not yet lathe- turned to the final dimension,… and… - thereafter to lathe-turn the warp beam (1) in the cylindrical part in such a way that the thickness (s2) of the warp beam-tube wall part (13) is greater than the thickness (s1) of the warp beam-tube wall part (14). …IMAGE…