INDUCTION PRE-HEATING AND BUTT WELDING DEVICE FOR ADJACENT EDGES OF AT LEAST ONE ELEMENT TO BE WELDED
First Claim
1. An induction pre-heating and butt welding device (1) for adjacent edges (2, 3) to be joined of at least one element (4) to be welded, of the type comprising an induction pre-heating head (5) of the adjacent edges and a welding head (6) arranged in tandem with respect to the pre-heating head, immediately downstream of the pre-heating head, with respect to a welding direction (D) along which, in use, the pre-heating and welding heads are moved according to a welding trajectory;
- characterized in that the pre-heating head (5) comprises, in combination;
support structure (8) shaped as a sliding block and adapted to move over the edges (2, 3) to be welded, parallel thereto;
a first inductor (9) lying in a first plane, which is parallel to a plane containing, or passing through, the edges (2, 3) to be welded, which is integrally supported by the support structure (8) at a predetermined distance from the edges to be welded; and
a second inductor (14) lying in a second plane, perpendicular to the first plane and integrally supported by the support structure (8) so as to be in use interposed between the edges (2, 3) to be welded and arranged at a predetermined distance (K) from the first inductor (9).
1 Assignment
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Accused Products
Abstract
Device (1) including a head (5) for induction pre-heating the adjacent edges of at least one item requiring welding which have to be joined, in which a sliding-block-shaped supporting structure (8) capable of moving above the edges to be welded (2, 3) and parallel thereto carries a first U-shaped inductor (9) in a first plane parallel to a plane containing the edges which have to be welded and carries a second inductor (14) which is U-shaped in a second plane perpendicular to the first plane in such a way that a first and second branch (16, 17) respectively of a tube (15) of the second inductor (14) are placed between the edges which have to be welded, at a predetermined distance (K) from the first inductor (9), when in use.
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Citations
11 Claims
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1. An induction pre-heating and butt welding device (1) for adjacent edges (2, 3) to be joined of at least one element (4) to be welded, of the type comprising an induction pre-heating head (5) of the adjacent edges and a welding head (6) arranged in tandem with respect to the pre-heating head, immediately downstream of the pre-heating head, with respect to a welding direction (D) along which, in use, the pre-heating and welding heads are moved according to a welding trajectory;
- characterized in that the pre-heating head (5) comprises, in combination;
support structure (8) shaped as a sliding block and adapted to move over the edges (2, 3) to be welded, parallel thereto; a first inductor (9) lying in a first plane, which is parallel to a plane containing, or passing through, the edges (2, 3) to be welded, which is integrally supported by the support structure (8) at a predetermined distance from the edges to be welded; and a second inductor (14) lying in a second plane, perpendicular to the first plane and integrally supported by the support structure (8) so as to be in use interposed between the edges (2, 3) to be welded and arranged at a predetermined distance (K) from the first inductor (9). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- characterized in that the pre-heating head (5) comprises, in combination;
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11. An induction pre-heating head (5) for a butt welding device of adjacent edges (2, 3) to be joined of at least one element to be welded, comprising, in combination:
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a support structure (8) shaped as a sliding block and adapted to move over the edges to be welded, parallel thereto; a first inductor (9) at least partly defined by a first pipe (10), the first inductor being U-shaped in a first plane, which is parallel to a plane containing the edges to be welded, and being integrally carried by the support structure (8) so that respective first and second branches (11, 12) of the first pipe are each arranged in use over one of the edges (2, 3) to be welded, at a predetermined distance from the edges to be welded; and a second inductor (14) at least partly defined by a second pipe (15), which second inductor is U-shaped in a second plane, perpendicular to the first plane, and is integrally carried by the support structure (8) so that respective first and second branches (16, 17) of the second pipe (15) are interposed in use between the edges (2, 3) to be welded, arranged at a predetermined distance (K) from the first inductor (9).
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Specification