ABSTRACT

Figure 75 Bonded lead [61]. (Courtesy of Lead Industries Association, New York.)

and hydrochloric acid. Next, a precoat is applied by hot-dipping the steel in a molten bath of a lead-tin or lead-nickel alloy. Finally, the lead sheet, degreased and wire brushed to remove the oxide film, is roll bonded to the steel. This last step is done in a rolling mill in one pass to avoid buildup of lead. If both sides of the steel are to be lined with lead, it is done in two separate passes to avoid deforming the steel.