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Descaling / Scale Removal

High-pressure water descaling is a core surface treatment technology in modern metallurgy and metal processing. Utilizing the physical action of high-pressure water jets, it efficiently removes oxide scale (iron scale) from the surface of high-temperature steel billets and steel plates, serving as a key process to ensure the surface quality of steel products.
Descaling is achieved through three mechanisms:

  1. Angled nozzles generate a strong impact force on the moving steel billet to break up the oxide scale.

  2. The low temperature of high-pressure water causes the oxide scale on the surface of newly heated billets to expand and contract unevenly due to a large temperature difference, thus falling off spontaneously.

  3. High-pressure water penetrates into the gaps between the oxide scale and the steel billet, vaporizes and expands on the high-temperature surface, causing the oxide scale to burst and peel off under steam pressure.