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AssigneePosco
InventorsRho-Bum Park, Yon-Kyun Song, Ji-Hoon Park, Hoon Yun, Seok-Chan Choe, Kyoung-Pil Ko
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A composition for washing a pickled steel plate and a method for washing a pickled steel plate using the same are provided. The composition for washing a pickled steel plate includes a phosphoric acid ester compound, an amine-based compound, sodium carbonate, ammonium acetate, ethylene diamine tetraacetic acid (EDTA) and a remainder of water, and the method for washing a pickled steel plate is performed using the same.
A composition for washing a pickled steel plate comprising 6 to 14 wt % of a phosphoric acid ester compound, 6 to 19 wt % of an amine-based compound, 1 to 9 wt % of sodium carbonate, 1 to 9 wt % of ammonium acetate, 1 to 14 wt % of ethylene diamine tetraacetic acid (EDTA), and a remainder of water;
A method for washing a pickled steel plate, comprising:
Dependencies are inferred from the claim text.