Control method for plate shape of high-strength steel plate
A high-strength steel plate and shape control technology, applied in the field of steel rolling, can solve problems such as waste products, large steel plate surface extension, and ineffective effects
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Embodiment 1
[0011] Embodiment 1: A method for controlling the shape of a high-strength steel plate, comprising the following steps: (1) heating, first heating the billet and then soaking, controlling the temperature of the heating section to be 1200°C, the soaking section to 1160°C, and the total heating time to be 6 hours (2) rolling, step (1) carries out preliminary rolling through the heated steel billet, and the control preliminary rolling pressure is 3700 tons, and preliminary rolling temperature is 1050 ℃, then keeps the steel plate straight and the steel plate swims back and forth on the roller table to be warmed , when the temperature of the steel plate reaches 820°C, the finish rolling is carried out, the finish rolling pressure is 3000 tons, the single pass reduction in the initial rolling and finish rolling process is 10mm, the rolling speed is 1.0m / s, and the pass reduction rate is 16% (3) cooling after rolling, cooling the steel plate after rolling through step (2), controllin...
Embodiment 2
[0012] Embodiment 2: A method for controlling the shape of a high-strength steel plate, comprising the following steps: (1) heating, first heating the billet and then soaking, controlling the temperature in the heating section to be 1210°C, the soaking section to 1170°C, and the total heating time is 5 hours (2) rolling, step (1) carries out initial rolling through the heated steel billet, and the control initial rolling pressure is 3800 tons, and initial rolling temperature is 1080 ℃, then keeps the steel plate straight and the steel plate swims back and forth on the roller table to be warmed , when the temperature of the steel plate reaches 830°C, the finish rolling is carried out, the finish rolling pressure is 3200 tons, the single pass reduction in the initial rolling and finish rolling process is 15mm, the rolling speed is 0.9m / s, and the pass reduction rate is 25% (3) cooling after rolling, cooling the steel plate after rolling through step (2), controlling the cooling f...
Embodiment 3
[0013] Embodiment 3: The plate shape control method of high-strength steel plate, comprising the following steps: (1) heating, the billet is first heated and then soaked, the temperature of the heating section is controlled to be 1220 ° C, the soaking section is 1180 ° C, and the total heating time is 4 hours (2) rolling, step (1) carries out preliminary rolling through the heated steel billet, and the control preliminary rolling pressure is 3900 tons, and preliminary rolling temperature is 1100 ℃, then keeps the steel plate straight and the steel plate swims back and forth on the roller table to be warmed , when the temperature of the steel plate reaches 840°C, the finish rolling is carried out, the finish rolling pressure is 3350 tons, the single pass reduction in the initial rolling and finish rolling process is 20mm, the rolling speed is 0.95m / s, and the pass reduction rate is 34% (3) cooling after rolling, cooling the steel plate after rolling through step (2), controlling...
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