Abstract:
The invention relates to a method for removing adhered particles (5) from the contact tip (6) of a welding torch, wherein a short-time duration stream of cleaning gas (7) with a high speed is directed to said contact tip (6).
Abstract:
A supporting structure (1) for supporting receptacles (2) for foods in apparatuses (4) for thermally treating said foods comprises crosspiece means (5) such as to act as a guide for said receptacles (2), upright means (7, 8) for supporting said crosspiece means (5) and welding joint means (11) for fixing an end portion (9, 10) of said crosspiece means (5) to a further portion (12, 13) of said upright means (7, 8); said end portion (9, 10) and said further portion (12, 13) are substantially coplanar and said welding joint means (11) extends along a profile (14) having at least a concavity (15).
Abstract:
The invention relates to a method for producing a body (1) for exhaust treatment, said body comprising a plurality of metallic layers (2). According to the inventive method, the layers (2) are brought into contact with each other in an assembly region (3), and a join is made by means of a roller seam welding method in such a way that the layers (2) form channels (4) through which a gas flow can pass. The invention also relates to corresponding bodies (1) for exhaust treatment, that can especially be used as filters or catalyst carrier bodies in the car industry.
Abstract:
A method of performing magnetic pulse welding operation to secure first and second metallic components (10, 20) together involves initially increasing the temperature of a first portion (11) of the first metallic component to soften same without substantially increasing the temperature of and softening a second portion of the first metallic component adjacent to the first portion (11). Then, the first portion (11) of the first metallic component (10) is disposed in an axially overlapping manner relative to a portion of the second metallic component (20) with a space therebetween. An inductor (40) is provided relative to the axially overlapping portions of the first and second metallic components (10, 20). The inductor (40) is energized to deform the first portion (11) of the first metallic component (10) into engagement with the portion of the second metallic component (20) so as to secure the first and second metallic components (10, 20) together.
Abstract:
L'invention propose un dispositif de préhension de fût avec un bâti avec un évidement destiné à être traversé par le fût et des moyens de serrage aptes à retenir le fût dans une position de travail, les moyens de serrage étant solidaires d'une partie mobile en rotation par rapport au bâti autour de l'axe défini par le fût dans sa position de travail. Le bâti (202, 203) et la partie mobile (205) s'étendent respectivement sur une partie seulement de l'étendue angulaire autour dudit axe de manière à ménager une ouverture (204) de passage du fût selon une direction perpendiculaire audit axe, ladite ouverture (204) débouchant dans ledit évidement. Une ligne d'assemblage et un procédé d'assemblage associés sont également proposés.
Abstract:
A laser beam source (11) is allocated to each of a number of linear joint sections in the joining area of the housing. Laser beam sources are mounted on the side of a laser welding head (1) facing the joint area. An Independent claim is made for a laser welding process for joining plastic components in which the latter are moved relative to a laser welding head (1) until each laser source (11) is directed at the sections to be joined. All joints are then simultaneously welded in a single operation.
Abstract:
A heating furnace tube, a method of using the same have been developed with a view to eliminating inconveniences occurring when a carbon-containing fluid is made to flow in the heating furnace tube. The heating furnace tube which comprises a rare earth oxide particle distributed iron alloy containing 17-26 wt.% of Cr and 2-6 wt.% of Al.