Continuous Electric Annealing and Acid Washing Line

The Continuous Bright Annealing Machine operates through a highly orchestrated sequence of processes that begins with feeding cold-rolled steel strips into the system. Initially, the strips undergo an acid pickling stage where they are immersed in a bath of dilute sulfuric acid or hydrochloric acid. This chemical treatment effectively removes oxides, scale, and other surface contaminants that have formed during the Cold Rolling process, preparing the strip surface for subsequent operations and ensuring enhanced coating adhesion and overall product quality.

Following acid pickling, the strips enter a rinse and drying section where they are thoroughly cleaned of any residual acid solution, typically using high-pressure water sprays and hot air blowers. This step is crucial to prevent corrosion and to maintain an optimal surface condition for annealing.

In essence, the Annealing Pickling Line leverages a combination of chemical treatment, controlled heating and cooling, and mechanical processing to transform cold-rolled steel strips into high-quality, finished stainless steel products with optimized properties tailored to meet diverse application requirements.