MANUFACTURING METHOD OF ZINC-PLATED STRIP FOR FOLLOWING APPLICATION OF POLYMER COATING Russian patent published in 2014 - IPC C21D8/04 B21B1/24 C22C38/00 C21D9/48 C23C2/00 

Abstract RU 2529323 C1

FIELD: metallurgy.

SUBSTANCE: at bending test with 3 T to 11/2 T as per GOST R 52146-2003 the method involves hot rolling of a low-carbon steel strip containing the following substances, wt %: carbon 0.02-0.05, silicon maximum 0.04, manganese 0.12-0.25, sulphur maximum 0.018, phosphorus maximum 0.020, chromium maximum 0.05, nickel maximum 0.06, copper maximum 0.08, aluminium 0.025-0.070, nitrogen maximum 0.007, iron and unavoidable impurities making the rest. Afterwards the strip is subject to reeling in a roll, etching, cold-rolling, degreasing, continuous annealing, application of zinc coating with the weight of maximum 300 g/m2, cooling, pinch pass rolling and reeling in roll, the temperatures of hot rolling end and reeling are set as 830-900°C and 670-720°C respectively, continuous annealing of a cold-rolled strip is carried out under the temperature of 680-820°C, pinch pass rolling is performed with cobbing of 0.4-1.2%, then zinc-coated strip is flattened.

EFFECT: increased strength of rolled metal with polymer coating.

2 cl, 2 tbl

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RU 2 529 323 C1

Authors

Mishnev Petr Aleksandrovich

Adigamov Ruslan Rafkatovich

Shchelkunov Igor' Nikolaevich

Antonov Pavel Valer'Evich

Filatova Anna Andreevna

Mitrofanov Artem Viktorovich

Petrova Anastasija Gennad'Evna

Nikitin Dmitrij Ivanovich

Kazandzhijan Ovanes Ambartsumovich

Moroz Anatolij Terent'Evich

Levenkov Vladimir Vasil'Evich

Dates

2014-09-27Published

2013-06-27Filed