High service strength enameled steel plate and preparation method thereof
A manufacturing method and technology for steel plates, applied to the steel plate for enamel and its manufacturing field, can solve the problems of lack of steel plates for enamel, low yield strength, etc., and achieve the effects of high strength level, reduced wear, and good anti-scalding performance.
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[0041] Example 1
[0042] A steel plate for enamel with high strength after enamelling, its chemical composition is shown in Table 1 by weight percentage, and its thickness is 11mm.
[0043] The preparation method of above-mentioned steel plate for enamel, comprises the steps:
[0044] Step 1, the molten iron is subjected to pretreatment, converter steelmaking and refining to obtain molten iron with the composition ratio of the steel plate for enamel, wherein the chemical composition of the steel plate for enamel is shown in Table 1 by weight percentage;
[0045] Step 2, continuous casting: the refined molten iron is continuously casted to obtain a billet;
[0046]Step 3, heating the billet: the temperature of the billet is controlled to be 1220°C by heating;
[0047] Step 4, two-stage hot rolling: 6 passes of rough rolling are performed first, followed by 7 passes of finishing rolling, and the final rolling temperature is 860°C;
[0048] Step 5, coiling: the finish-rolled ...
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[0056] Example 2
[0057] A steel plate for enamel with high strength after enamelling, its chemical composition is shown in Table 1 by weight percentage, and its thickness is 13mm.
[0058] The preparation method of above-mentioned steel plate for enamel, comprises the steps:
[0059] Step 1, the molten iron is subjected to pretreatment, converter steelmaking and refining to obtain molten iron with the composition ratio of the steel plate for enamel, wherein the chemical composition of the steel plate for enamel is shown in Table 1 by weight percentage;
[0060] Step 2, continuous casting: the refined molten iron is continuously casted to obtain a billet;
[0061] Step 3, heating the billet: the temperature of the billet is controlled to be 1230°C by heating;
[0062] Step 4, two-stage hot rolling: 6 passes of rough rolling are performed first, followed by 7 passes of finishing rolling, and the final rolling temperature is 840°C;
[0063] Step 5, coiling: the finish-rolled...
Example Embodiment
[0071] Example 3
[0072] A steel plate for enamel with high strength after enamelling, its chemical composition is shown in Table 1 by weight percentage, and its thickness is 14mm.
[0073] The preparation method of above-mentioned steel plate for enamel, comprises the steps:
[0074] Step 1, the molten iron is subjected to pretreatment, converter steelmaking and refining to obtain molten iron with the composition ratio of the steel plate for enamel, wherein the chemical composition of the steel plate for enamel is shown in Table 1 by weight percentage;
[0075] Step 2, continuous casting: the refined molten iron is continuously casted to obtain a billet;
[0076] Step 3, heating the billet: the temperature of the billet is controlled to be 1210°C by heating;
[0077] Step 4, two-stage hot rolling: 6 passes of rough rolling are performed first, followed by 7 passes of finishing rolling, and the final rolling temperature is 840°C;
[0078] Step 5, coiling: the finish-rolled...
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