B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 9/26 (2006.01) B23K 9/133 (2006.01)
Patent
CA 2435627
The contact tip is used for electric arc welding in a protective gas medium (MIG-MAG welding) or under a layer of flux, feeding the wire electrode from the wire- feeding device through the tip torch to the weld zone, simultaneously conducting current to the wire. The aperture comprises sectors with triangular and circular cross section or the aperture shape can be helical with a triangular cross section, and part of its sector with a triangular cross section can be fabricated as a separate bush. The wire electrode contacts the walls and arms of the angles of the triangular aperture and it has minimal elastic energy. The shape of the wire feed aperture provides simultaneous increase of the contact areas and tip/wire contact pressure together with high passability, regardless of the tip length and the presence of cumulative deposit of dirt and extraneous matter from the welding wire or electrode surface.
Ivanov Bojidar I.b.
Setchensky Hristo S.h.
Ivanov Bojidar I.b.
Setchensky Hristo S.h.
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