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 for adjacent edges to be joined of at least one element to be welded, of the type comprising an induction pre-heating head of the adjacent edges and a welding head arranged in tandem with respect to the pre-heating head, immediately downstream of the pre-heating head, with respect to a welding direction along which, in use, the pre-heating and welding heads are moved according to a welding trajectory;
- characterized in that the pre-heating head comprises, in combination;
support structure shaped as a sliding block and adapted to move over the edges to be welded, parallel thereto;
a first inductor lying in a first plane, which is parallel to a plane containing, or passing through, the edges to be welded, which is integrally supported by the support structure at a predetermined distance from the edges to be welded; and
a second inductor lying in a second plane, perpendicular to the first plane and integrally supported by the support structure so as to be in use interposed between the edges to be welded and arranged at a predetermined distance from the first inductor.
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
17 Claims
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1. An induction pre-heating and butt welding device for adjacent edges to be joined of at least one element to be welded, of the type comprising an induction pre-heating head of the adjacent edges and a welding head arranged in tandem with respect to the pre-heating head, immediately downstream of the pre-heating head, with respect to a welding direction along which, in use, the pre-heating and welding heads are moved according to a welding trajectory;
- characterized in that the pre-heating head comprises, in combination;
support structure shaped as a sliding block and adapted to move over the edges to be welded, parallel thereto; a first inductor lying in a first plane, which is parallel to a plane containing, or passing through, the edges to be welded, which is integrally supported by the support structure at a predetermined distance from the edges to be welded; and a second inductor lying in a second plane, perpendicular to the first plane and integrally supported by the support structure so as to be in use interposed between the edges to be welded and arranged at a predetermined distance from the first inductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- characterized in that the pre-heating head comprises, in combination;
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11. An induction pre-heating head for a butt welding device of adjacent edges to be joined of at least one element to be welded, comprising, in combination:
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a support structure shaped as a sliding block and adapted to move over the edges to be welded, parallel thereto; a first inductor at least partly defined by a first pipe, 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 so that respective first and second branches of the first pipe are each arranged in use over one of the edges to be welded, at a predetermined distance from the edges to be welded; and a second inductor at least partly defined by a second pipe, which second inductor is U-shaped in a second plane, perpendicular to the first plane, and is integrally carried by the support structure so that respective first and second branches of the second pipe are interposed in use between the edges to be welded, arranged at a predetermined distance from the first inductor.
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12. An apparatus, comprising:
an induction head configured to heat adjacent edges to be joined of at least one element to be welded, the induction pre-heating head comprising; a sliding support structure configured to move over and parallel to the edges to be joined; a first inductor arranged in a first plane, which is parallel to a plane containing, or passing through, the edges to be welded, wherein the first inductor is supported by the sliding support structure at a predetermined distance from the edges to be joined; and a second inductor lying in a second plane that is perpendicular to the first plane, wherein the second inductor is integrally supported by the sliding support structure so as to be in use interposed between the edges to be welded and arranged at a predetermined distance from the first inductor. - View Dependent Claims (13, 14, 15, 16, 17)
Specification