Wiping hot dipped galvanized wire or strip

Abstract

Abstract The disclosure relates to the wiping of hot dipped galvanized wire or strip by drawing it upwardly from a bath of molten zinc through a wiping bed of discrete material which floats thereon. The bed is laterally confined and is continuously or intermittently vibrated to thereby cause it to become more dense and uniform so that the zinc coatings formed on the wire or strip are more uniform in thickness. The bed may be loaded at the top so that a downward pressure is exerted thereon. The disclosure further provides for the vibration of the bed under conditions such that the bed forming material is discharged at a restricted rate from the bottom of the bed while the latter remains substantially uniform and dense, the material thus discharged being replaced by the addition of fresh material to the top of the bed (whereby the bed is self-cleaning). The disclosure may be used in combination with ''''gas wiping'''' according to which air is excluded from the wiping bed by continuously passing upwardly therethrough a non-oxidizing gas containing at least a small proportion of hydrogen sulphide or other suitable sulphide forming gas.

Inventors

• 👤 Jack Pryor Sciffer

Bibliographic Details