OPTIMIZATION OF A PICLE FOR SURFACE RINSING OF HOTEXTRUDED PIPES WITH CORROSION RESISTANCE

The corrosion test to the hot-extruded pipes with corrosion resistance in the aqueous solution with different quantities of HNO₃,HF,HCl or HNO₃,HCl,H₂SO₄ are carried out and a optimized pickle for rinsing glass lubricants and passivating aurfaces is obtained.