Rolling controlling method and device for double-roller continuous casting magnesium alloy sheet
A magnesium alloy, continuous casting technology, applied in metal rolling, rolling force/roll gap control, temperature control, etc., can solve the problems of improving uniformity, not mentioned, etc., to reduce anisotropy, improve strength, Effect of suppressing the tendency of rolling cracks
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[0026] The present invention will be further described below in conjunction with accompanying drawing and embodiment:
[0027] a. The molten magnesium alloy solution is cast-rolled in an integrated casting-rolling machine 1 . Taking AZ31 magnesium alloy as an example, the liquid metal casting temperature is controlled at 680-720°C; the temperature of the casting rolls of the cast plate is 350-450°C, the casting and rolling speed is 15-20m / min, and the thickness of the plate is 2.5-3mm; Enter the lower cooling system, control the cooling speed and prevent high-temperature oxidation in the cooling oil, run the oil outlet groove along the guide roller group, and control the temperature of the cast plate oil outlet groove at 300-350°C. Use squeeze rolls to remove excess oil from the surface of the casting rolls.
[0028] b. The cast plate out of the oil tank is leveled and lightly rolled by a rolling mill 2, then cut by flying shear 3, collected on a stand 4 and stacked, and then e...
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