Causes and Treatment of Hot-rolled Al-Zn Alloy Coated Steel Sheets
Abstract
Steel exposure is a major defect of hot-rolled Al-Zn alloy coated steel sheets, which are manufactured on the production line of cold-rolled Al-Zn alloy coated steel sheets, using the United States Steel Corp method. This paper experimentally analyzes morphological features of steel exposure, dusts adhered to furnace roller and degreasing cleaning technology, identifies the main causes of steel exposure, and proposes a method to eliminate the defect, providing a solution to insufficient solder.