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1. (WO2018025286) METHOD AND DEVICE FOR WELDING ANCHOR SUPPORTS FOR REFRACTORY LININGS

Pub. No.:    WO/2018/025286    International Application No.:    PCT/IT2017/000164
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Sat Aug 05 01:59:59 CEST 2017
IPC: B23K 9/20
B23K 9/00
F27D 1/16
Applicants: PERIOTTO, Bruno
Inventors: PERIOTTO, Bruno
Title: METHOD AND DEVICE FOR WELDING ANCHOR SUPPORTS FOR REFRACTORY LININGS
Abstract:
A method for welding anchor supports for refractory linings of a metal structure of an industrial plant comprises the steps of making a plurality of holes (f) in a residual refractory lining (cu) until the metal structure (s) is uncovered, each hole (f) having a diameter greater than that of a ceramic ferrule (8) for stud-welding, cleaning the bottom of the holes (f), arc welding the anchor (Z) on the metal structure (s) of the industrial plant through each hole (f) made in the residual refractory liner (cu) so that the anchor protrudes from the residual refractory lining (cu), and overlapping new refractory concrete (cn) in order to restore the protective lining for the metal structure (s) of the industrial plant. A device for welding anchor supports for refractory linings of a metal structure of an industrial plant, consisting of a welding gun (1) for arc stud-welding, comprising a body (2) that holds a chuck member (9) for an anchor or clamp (Z) and is connected to a handle (3), a perforated support plate (4) mounted on the body (2) by means of stems (5), a tubular extension (6) mounted on the perforated support plate and supporting a ceramic ferrule (8) by a nut ring (7), wherein the tubular extension (6) and the nut ring (7) have a diameter smaller than that of the ceramic ferrule (8).