Selective coating to inhibit cracking from galvanizing
AssigneeSabre Communications Corporation
InventorLeo Dan Padron
Life of this patent
Estimating the term…
Abstract
A process for making a workpiece, e.g., such as a utility or communications monopole can include selectively masking welded regions (e.g., joining the pole to a collar or other portion of a base, or joining component parts of the pole) before a corrosion-inhibiting galvanizing process that can include precleaning (e.g., in a hot acid bath) and a hot zinc galvanizing bath. The masking material can than optionally be removed, such as abrasively. The unmasked regions can optionally be spot-treated, if desired, such as to inhibit corrosion.
Claims20
A process for manufacturing or galvanizing a workpiece including a pole welded to a base, the process comprising:
- selectively covering at least the welded portions of the workpiece using a masking material, while leaving other portions of the workpiece exposed;
- cleaning the selectively masked workpiece using an acid bath;
- and
- galvanizing the cleaned and selectively masked workpiece using a hot zinc bath.
A process for manufacturing or galvanizing a workpiece, the process comprising:
- selectively covering at least the welded portions of the workpiece using a masking material, while leaving other portions of the workpiece exposed;
- cleaning the selectively masked workpiece using an acid bath;
- and
- galvanizing the cleaned and selectively masked workpiece using a hot zinc bath.
A utility or communications pole comprising:
- a base;
- a shaft, welded to the base by a weld;
- and
- a galvanizing-inhibiting covering selectively covering at least the weld while leaving other portions of the base or shaft exposed.
Dependencies are inferred from the claim text.