Hot-based spangle-free galvanized steel coil and production method thereof
A production method and technology of galvanized steel, which are applied in hot-dip plating process, coating, metal material coating process, etc., can solve the problem of difficult to meet the high strength and high corrosion resistance of photovoltaic brackets, and improve the corrosion resistance. and oxidation resistance, improve corrosion resistance, and ensure the effect of cleanliness
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Embodiment 1
[0025] A hot-based spangle-free galvanized steel coil, the chemical composition and mass percentage of the base plate of the galvanized steel coil are: C: 0.15%; Si: 0.03%; Mn: 0.68%; P: 0.02%; S: 0.004%; Als: 0.022%; Nb: 0.010%; V: 0.006%; Ti: 0.06%, and the balance is Fe and inevitable impurities.
[0026] The production method of the above-mentioned hot-based zinc-free galvanized steel coil, comprising the following steps:
[0027] S1: prepare molten iron, carry out converter smelting, LF refining and RH refining, and continuously cast the molten iron to obtain slabs;
[0028] S2: The obtained slab is passed through a hot rolling production line to obtain a hot rolled steel with a thickness of 1.8 mm;
[0029] S3: The obtained hot-rolled steel enters the continuous pickling process, and undergoes pickling, inspection, and coiling to obtain a pickling coil, wherein, in the continuous pickling process, the pickling tank is composed of three series-connected and mutually inde...
Embodiment 2
[0032] A hot-based spangle-free galvanized steel coil, the chemical composition and mass percentage of the base plate of the galvanized steel coil are: C: 0.18%; Si: 0.04%; Mn: 0.69%; P: 0.02%; S: 0.004%; Als: 0.026%; Nb: 0.010%; V: 0.007%; Ti: 0.056%, and the balance is Fe and inevitable impurities.
[0033] The production method of the above-mentioned hot-based zinc-free galvanized steel coil, comprising the following steps:
[0034] S1: prepare molten iron, carry out converter smelting, LF refining and RH refining, and continuously cast the molten iron to obtain slabs;
[0035] S2: The obtained slab is passed through a hot rolling production line to obtain a hot rolled steel with a thickness of 1.8 mm;
[0036] S3: The obtained hot-rolled steel enters the continuous pickling process, and undergoes pickling, inspection, and coiling to obtain a pickling coil, wherein, in the continuous pickling process, the pickling tank is composed of three series-connected and mutually ind...
Embodiment 3
[0039] A hot-based spangle-free galvanized steel coil, the chemical composition and mass percentage of the base plate of the galvanized steel coil are: C: 0.17%; Si: 0.07%; Mn: 0.7%; P: 0.014%; S: 0.002%; Als: 0.04%; Nb: 0.009%; V: 0.003%; Ti: 0.053%, and the balance is Fe and inevitable impurities.
[0040] The production method of the above-mentioned hot-based zinc-free galvanized steel coil, comprising the following steps:
[0041] S1: prepare molten iron, carry out converter smelting, LF refining and RH refining, and continuously cast the molten iron to obtain slabs;
[0042] S2: The obtained slab is passed through a hot rolling production line to obtain a hot rolled steel with a thickness of 2.0 mm;
[0043] S3: The obtained hot-rolled steel enters the continuous pickling process, and undergoes pickling, inspection, and coiling to obtain a pickling coil, wherein, in the continuous pickling process, the pickling tank is composed of three series-connected and mutually inde...
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