Cast-rolled strip billet preparation method for reducing 1060 aluminum alloy five-grade grain occurrence rate
The invention relates to the technical field of aluminum alloy strip preparation, in particular to a cast-rolled strip billet preparation method for reducing the occurrence rate of 1060 aluminum alloy five-grade grains. According to the method, the influence of heating and heat preservation stages o...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the technical field of aluminum alloy strip preparation, in particular to a cast-rolled strip billet preparation method for reducing the occurrence rate of 1060 aluminum alloy five-grade grains. According to the method, the influence of heating and heat preservation stages on molten aluminum overburning is reduced, the number of active nucleation particles of the molten aluminum is increased, the cooling uniformity in the crystallization process is improved, the temperature gradient beneficial to layered crystallization development is reduced, and the crystallization process is systematically inhibited from developing towards the layered crystallization direction; by means of the method, generation of five-level grains in the 1060 alloy casting and rolling process is effectively controlled, stable batch production of the 1060 alloy strip blanks cast and rolled through the electrolytic aluminum liquid is achieved, the method has a remarkable effect on control over generation of the fiv |
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