Production method of 360 MPa grade single-sided enameled hot-rolled pickled steel plate
A hot-rolled pickling and production method technology, which is applied in the field of hot-rolled pickling plates, can solve the problems of high production cost of enamelled special steel, poor scale explosion resistance and poor quality stability of hot-rolled pickling plates, and achieve production cost Low, anti-scale explosion performance and good adhesion performance, good performance stability
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Embodiment 1
[0025] In this embodiment, the high-titanium low-cost alloy composition of the hot-rolled pickled steel plate for 360MPa grade single-sided enamelling is as follows:
[0026] C: 0.061%, Si: 0.01%, Mn: 0.35%, P: 0.015%, S: 0.010%, Als (acid-soluble aluminum): 0.025%, Ti: 0.065%, N: 0.003%, and the balance is iron and unavoidable impurities.
[0027] In the present embodiment, the production method of hot-rolled pickled steel plate for 360MPa single-sided enamelling is as follows:
[0028] 1) Smelt 360MPa-grade single-sided enamel hot-rolled pickled steel plate alloys according to conventional methods, and cast them into billets;
[0029] 2) Place the billet in a heating furnace and heat it to 1230°C, roll at 1030°C, cool in laminar flow to 650°C for coiling, pickle and oil. The yield strength of the product is 445MPa, and the elongation after breaking is 27%.
Embodiment 2
[0031] In this embodiment, the high-titanium low-cost alloy composition of the hot-rolled pickled steel plate for 360MPa grade single-sided enamelling is as follows:
[0032] C: 0.064%, Si: 0.03%, Mn: 0.52%, P: 0.012%, S: 0.008%, Als (acid-soluble aluminum): 0.020%, Ti: 0.062%, N: 0.002%, and the balance is iron and unavoidable impurities.
[0033] In the present embodiment, the production method of hot-rolled pickled steel plate for 360MPa single-sided enamelling is as follows:
[0034] 1) Smelt 360MPa-grade single-sided enamel hot-rolled pickled steel plate alloys according to conventional methods, and cast them into billets;
[0035] 2) Place the billet in a heating furnace and heat it up to 1200°C, roll it at 1080°C, cool it in laminar flow to 620°C for coiling, pickle and oil it. The yield strength of the product is 431MPa, and the elongation after breaking is 30%.
Embodiment 3
[0037] In this embodiment, the high-titanium low-cost alloy composition of the hot-rolled pickled steel plate for 360MPa grade single-sided enamelling is as follows:
[0038] C: 0.068%, Si: 0.02%, Mn: 0.45%, P: 0.010%, S: 0.012%, Als (acid-soluble aluminum): 0.035%, Ti: 0.070%, N: 0.004%, and the balance is iron and unavoidable impurities.
[0039] In the present embodiment, the production method of hot-rolled pickled steel plate for 360MPa single-sided enamelling is as follows:
[0040] 1) Smelt 360MPa-grade single-sided enamel hot-rolled pickled steel plate alloys according to conventional methods, and cast them into billets;
[0041] 2) Place the billet in a heating furnace and heat it to 1250°C, roll it at 1050°C, cool it in laminar flow to 680°C for coiling, pickle and oil. The yield strength of the product is 458MPa, and the elongation after breaking is 27%.
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Abstract
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