| 摘要 |
<p>The process for electrically welding a heating tube with a collector pipe for assembling tubular elements (2, 3, 4) for a radiator with fluid coolant, comprises arranging an initial support zone and a second support zone (14) in an external wall of the tubular elements, packing the tubular elements between two electrodes to create a contact area of the external walls of the elements, and welding the contact area by passing a current of high intensity for a very short time. The collector pipe has holes (6, 8) to ensure the passage of the fluid inside the tubular elements. The process for electrically welding a heating tube with a collector pipe for assembling tubular elements (2, 3, 4) for a radiator with fluid coolant, comprises arranging an initial support zone and a second support zone (14) in an external wall of the tubular elements, packing the tubular elements between two electrodes to create a contact area of the external walls of the elements, and welding the contact area by passing a current of high intensity for a very short time. The collector pipe has holes (6, 8) to ensure the passage of the fluid inside the tubular elements. The initial support zone is located at the periphery of the fluid passage holes, forms a protuberance with respect to the second support zone, and is obtained by local deformation of a portion of the tubular element wall. The heating tube of the tubular elements comprises an internal chamber without partitions. The tubular elements further include an inlet opening, and an outlet opening arranged in a median area of the heating tube. The local deformation is obtained by enlargement of a section of the tubular element at the periphery of the holes, and by contraction of a section of the tubular element adjacent to a peripheral zone of the holes.</p> |
