Weld back up assembly

Details Weld back up assembly Weld back up assembly

1978-05-15

1980-01-08

Goldberg, E. A.

Electric heating

Metal heating

Work holders

228 50, 228216, B23K 902

Patent

active

041829514

ABSTRACT:
An assembly for shielding the underside of a weldment joint comprising an elongated, flexible, preferably metallic mounting strip and a plurality of small, discrete back up blocks made of a refractory material suitably secured in end to end array to one face of the metallic strip centrally thereof. The blocks preferably having a groove wider than the weldment joint, the grooves being aligned to define a channel confronting the joint and of a predetermined depth to control the penetration and depth of the weld bead. The back up blocks are of a width narrower than said metallic strip to expose side edge portions of said metallic strip, the exposed side edge portions having an adhesive coating to provide a substantially air-tight sealing engagement with the weldment joint along both edges of the mounting strip.
The assembly has a degree of flexibility to permit conformation of the assembly to the shape of the weldment and in use supports slag and the welding pool formed during welding.

REFERENCES:
The Condensed Chemical Dictionary, sixth edition, Reinhold, N.Y. 1962, pp. 1103-1104.

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