Back to results
US 4,005,306 AGranted
Flux breaker for submerged arc strip cladding of metallic work pieces
AssigneeCombustion Engineering, Inc.
InventorClarence Winfred Overby
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeCombustion Engineering, Inc.
InventorClarence Winfred Overby
Estimating the term…
The invention relates to an improvement in apparatus for carrying out the submerged arc surfacing of metallic work pieces with metal electrode strips melting in an electric arc while forming welding beads upon the work piece. A slag breaker comprising a series of parallel plate portions disposed substantially perpendicular to the surface of the electrode strip is positioned on the leading side of the electrode strip adjacent the region of the electric arc. The slag breaker serves to break up an accumulation of fused flux particles which tend to form a sheet in front of the welding arc which, if permitted to form would block the flux feed into the welding arc on the leading side. The slag breaker thus serves to prohibit formation of such a sheet and thereby permits uniform flow of flux to insure complete submergence of the arc in the flux material thus minimizing the chance of the arc flashing through the flux burden and resulting in defects in the deposited cladding material.
In combination with weld cladding apparatus for cladding a workpiece to be plated, a plating material strip mounted above said workpiece, and means for creating an electric arc between said workpiece and said strip to melt said strip and to deposit a plating layer on said workpiece to one side of said strip in a generally linear plating zone and wherein means are provided for submerging said arc welding zone in a layer of welding flux material, the improvement which comprises means disposed adjacent said electric arc on the other side of said plating strip for breaking up an accumulation of slag material which forms with continued use on said other side of said plating strip, said slag accumulation, if permitted to form, being capable of blocking the flux feed into the welding arc on said other side of said electrode strip.
Dependencies are inferred from the claim text.