High strength cold rolling packaging steel belt and production method thereof
A high-strength, steel strip technology, applied in the field of metallurgy, can solve the problems of affecting popularization and use, high smelting costs, low tensile strength and high-strength cold-rolled packaging steel strips, etc., to achieve good prospects for popularization and use, improve anti-corrosion performance, The effect of low production cost
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Embodiment 1
[0037] Example 1 Preparation of high-strength cold-rolled packaging steel strip
[0038] a. Smelting molten steel: The smelting equipment is a 120-ton top-blown converter. The blast furnace molten iron is used as the raw material. The temperature of the blast furnace molten iron is 1377°C. Steelmaking auxiliary materials are added to smelt to 1690°C to tap the steel to the molten steel tank. Add 1.2 tons of aluminum when tapping 1 / 3 Ferromanganese (Wuxi Juyuan Alloy Co., Ltd.) pre-deoxidation, 0.05Kg deoxidizer aluminum pellets (Wuxi Juyuan Alloy Co., Ltd.) for deoxidation, and then add pitch coke (Panzhihua Yangcheng Metallurgical Accessories Co., Ltd.) to the deoxidized molten steel and ferromanganese (Dechang Ferroalloy Co., Ltd.), so that the content of each component in molten steel is (based on the total weight of molten steel, wt%) C: 0.16, Si: 0.03%, Mn: 0.39, P: 0.025, S: 0.011, Al: 0.03, and the rest is Fe. Then carry out bottom blowing argon gas treatment on the mo...
Embodiment 2
[0049] Embodiment 2 The preparation of high-strength cold-rolled packaging steel strip
[0050] The preparation method of the high-strength cold-rolled packaging steel strip is basically the same as in Example 1, except that the composition of molten steel obtained by converter smelting is (wt%) C: 0.15%, Si: 0.04%, Mn: 0.41%, P: 0.021% , S: 0.016%, Al: 0.04%, the rest is Fe, and use the aforementioned molten steel to produce steel slabs, the components of which are (wt%) C: 0.15%, Si: 0.04%, Mn: 0.41%, P: 0.021%, S: 0.016%, Al: 0.04%, and the rest is Fe. Steel billets are used to produce high-strength cold-rolled packaging strips. The slab exit temperature is 1215°C, the final rolling temperature is 888°C, and the coiling temperature is 555°C. The thickness of the hot-rolled finished product is 3.25mm, and the thickness of the cold-rolled finished product is 0.9mm. The ratio was 72.3%, and the blue color temperature was 390°C.
[0051] The mechanical properties of the prepa...
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