Welding device for the replacement of a heating rod of a pressur

Details Welding device for the replacement of a heating rod of a pressur Welding device for the replacement of a heating rod of a pressur

1991-09-19

1992-12-15

Wasil, Daniel D.

Electric heating

Metal heating

Of cylinders

228119, B23K 900

Patent

active

051719533

ABSTRACT:
To ensure the sealed fixing of a replacement heating rod (4) on a collar (3) for passing through the casing (1) of a pressurizer, a weld is made in a single pass by a regulated MIG process. A shaft is fixed on one end of the heating rod projecting in relation to the collar (3) and in the extension thereof. A welding device is engaged and fixed in position on the shaft, this welding device comprising a tubular support (14) and an inert-gas orbital welding torch (10) with an electrode made of fusible metal, rotatably mounted about the axis of the support (14) which coincides with the axis of the rod (4). The welding torch (10) and a device to unwind welding wire which is placed in a cabinet (6) are set into synchronous rotation during the welding, by appropriate drive means. The welding is carried out in a single pass on the entire periphery of the heating rod (4) and of the collar (3).

REFERENCES:
patent: 3194937 (1965-07-01), Brons et al.
patent: 4255840 (1981-03-01), Loch et al.
patent: 4804813 (1989-02-01), Tesch

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