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AssigneeHydro Extruded Solutions AS
InventorsGiorgio Giovanni Battista ZAFFARONI, Marco PASQUALON, Jeffrey Lee INSALACO, Vincent BUZZELLE, Andrej MANGELSDORF
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A seam guide assembly configured to maintain the longitudinal edges of a metal strip in position before welding in a welding section of a welded tube roll forming apparatus, the seam guide assembly having a front seam guide tip component, a through channel being provided in the holder, the channel having an inlet opening located on said first side of the holder, adjacent the front seam guide tip component, and an outlet opening located on a second side of the holder, the outlet opening being configured to connect to a vacuum source; a welded tube roll forming apparatus having a vacuum extraction section configured to extract solid particles produced inside the tube during the high frequency induction welding of the tube edges, and being located in the apparatus at a position where the where the edges of the roll formed tube have not yet been welded together; and related method.
A seam guide assembly (1) configured to maintain the longitudinal edges (101) of a metal strip (102), which is being roll formed into a tube (100), in position before welding the edges together in a welding section (201) of a welded tube roll forming apparatus (200), said seam guide assembly (1) comprising a front seam guide tip component (2), which is attached to a holder (3) in such a way that an elongated tip (4) protrudes from a first side (5) of the holder (3), said tip (4) being configured to be inserted between the tube edges (101) to be welded wherein a through channel (6) is provided in the holder (3), said channel having an inlet opening (7) located on said first side (5) of the holder, adjacent the front seam guide tip component (2) in a longitudinal direction of the holder, and an outlet opening (8) located on a second side (9) of the holder, said outlet opening being configured to be connected to a vacuum source.
A welded tube roll forming apparatus (200) comprising a roll forming section (202) configured to form a metal strip (102) into a tube (100), followed by a welding section (201) comprising a seam guide assembly (208), a high frequency induction weld coil (203) and a pair of weld rollers (204) and being configured to weld together the longitudinal edges (101) of a metal strip (102), which is being roll formed into a tube (100), while the tube is forwarded through the apparatus in a travel direction (T) wherein the apparatus further comprises vacuum extraction section (205) configured to extract solid particles produced inside the tube (100) during the high frequency induction welding of the tube edges, said vacuum extraction section (205) being located in the apparatus at a position where the edges (101) of the roll formed tube have not yet been welded together.
A method of manufacturing a tube comprising aluminium or alloys thereof, comprising roll forming a strip comprising aluminium or alloys thereof into a tube (100) in a roll forming section (202) of a welded tube roll forming apparatus (200);
Dependencies are inferred from the claim text.