The principle of

Oxide skin, rust and other iron oxides (Fe3O4, Fe2O3, FeO, etc.) react with acid solution to form salts dissolved in acid solution and be removed.

Acid is commonly used for pickling

Acid for pickling includes sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, chromic acid, hydrofluoric acid and mixed acid. The most commonly used are sulfuric and hydrochloric acids.

Pickling processes mainly include dipping pickling, spraying pickling and acid paste rust removal. General use of dipping pickling method, mass production can be spray method.

Industrial concentrated sulfuric acid sold on the market usually contains H2SO475%~97% (mass fraction), can also choose brown industrial sulfuric acid solution, it contains H2SO475%~78%(mass fraction).

Hot rolling pickling products with its surface quality, saving process energy consumption and other unique advantages, more and more applied in automobile manufacturing, auto parts and other industries, become the main material of automobile chassis, wheels, seats, safety components, etc. Baosteel is oriented to meet the needs of users, closely tracking the development of the automobile industry, relying on long-term accumulation of production technology. Through the exploration and practice of hot rolling pickling products, we have produced serialized products with good quality, and achieved stable supply in batches, which meet the requirements of safety and economy and are used in batches by well-known manufacturers at home and abroad, and are favored by users.

The steel described provides stamping, swing shearing, leveling, laser cutting, laser welding and strip processing, and we also have a professional logistics team to provide you with a full range of services.

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