Bethlehem Steel

About: Bethlehem Steel is a based out in . It is known for research contribution in the topics: Coating & Corrosion. The organization has 1529 authors who have published 1559 publications receiving 19098 citations. The organization is also known as: Bethlehem Steel Corporation.

Corrosion inhibiting primer paint for hand cleaned ferrous metals

Abstract: A red lead primer paint having excellent wetting and penetrating characteristics, which when applied to the surface of ferrous metals forms a tough, resilient, adherent coating characterized by having excellent weathering and corrosion inhibiting properties, is comprised of a red lead pigment well dispersed in a binder of raw linseed oil and long oil alkyd resin. The red lead primer paint has a pigment volume concentration (PVC) within the range of about 25% to about 30%. The concentration of the red lead pigment in the primer paint is in the range of 0.25 to 2.2 pounds per gallon (29.95 to 263.56 grams per liter) of solids. The binder is comprised of raw linseed oil and a long oil alkyd resin mixed in a ratio within the range of 1:1 to 2:1.

Method of reconditioning welded joints

Abstract: This invention relates to a combined method of welding and annealing an aluminum-zinc alloy coated ferrous wire, and restoring the corrosion resistant properties to the annealed areas of said wire. The aluminum-zinc coating consists of an alloy overlay and an intermetallic alloy layer, between said alloy overlay and the ferrous wire. The preferred method includes the steps of (1) upset welding two alloy coated steel wires, (2) annealing the weld joint, at a temperature between about 1200° and about 1450° F. whereby during such annealing the weld joint is subjected to brushing to remove said alloy overlay and to prevent the formation of oxides on said intermetallic alloy layer, (3) removing the burr formed during such welding, and (4) cooling. During said cooling, or alternatively by reheating to a maximum temperature where the aluminum-zinc alloy coating on the wire begins to melt, i.e. about 900° F. (482° C.), a flux and lead-free, Zn-containing solder stick or wire is repeatedly moved along the weld joint to further disrupt and remove any oxide remaining thereon while depositing a new corrosion resistant coating comprised of said Zn-containing solder.