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High-Strength Deformed Aluminum Alloy Billet Continuous Casting and Forging Production
In recent years, with the development of energy-saving and consumption-reducing technologies, the application of high-strength deformed aluminum alloy billets has been further expanded in aerospace, railway, transportation, architectural and other industries. Its weight, strength and cost performance have achieved remarkable results. The production of high-strength deformed aluminum alloy billets requires not only the improvement of alloy components and melt treatment processes, but also the improvement of continuous casting and forging production processes.
The continuous casting and forging process of high-strength deformed aluminum alloy billets mainly includes casting production process and forging production process. The casting production process of high-strength deformed aluminum alloy billets mainly includes: melting, continuous casting, heat treatment, cutting and sampling. In the continuous casting process of high-strength deformed aluminum alloy billets, the amount of oxygen in the molten aluminum liquid is strictly controlled, and protective gases such as argon can be used to reduce oxidation and reduce the occurrence of defects.
The moisture in the air affects the quality of the high-strength deformed aluminum alloy billet, so the casting equipment needs to be equipped with a dehumidification system to ensure the stable quality of the billet. The reheated temperature of the high-strength deformed aluminum alloy billets should be strictly controlled according to the requirements and controlled at a certain temperature range. The carryover rate, alloy composition and yield of the high-strength deformed aluminum alloy billets using squeeze casting technology can be effectively improved and an aluminum forging billet blank with a uniform structure and no defects can be obtained.
Forging production process mainly includes: forging, heat treatment, cutting and sampling. In the forging production of high-strength deformed aluminum alloy billets, the selection of forging equipment and the setting of parameters are very important. The forging equipment must have high equal-force and high-efficiency heating characteristics, and the metal forming process must be safe and reliable. Under the same production conditions, careful adjustment of the deformation rate, deformation temperature, cooling rate and multiple forging times can increase the metal yield and improve the mechanical properties of the billet.
In order to control the surface quality of the high-strength deformed aluminum alloy billet, the surface of the billet should be cleaned, oiled and tempered during forging. When choosing forging dies, attention should be paid to the shape accuracy, the selection of suitable lubricants, timely replacement and maintenance of dies, and the improvement of die lubrication technology.
In summary, in the continuous casting and forging production process of high-strength deformed aluminum alloy billets, the selection of appropriate processes and optimization of process parameters are very important. In the continuous casting process, in order to obtain aluminum forging billet with uniform composition, morphology and performance, attention should be paid to the oxygen content in the molten aluminum liquid, the heating and cooling temperature, the seriousness of the protective gas, etc. of the high-strength deformed aluminum alloy billet. In the forging process, in order to obtain the required performance of the billet, attention should be paid to the die selection, lubrication technology, surface processing, heater selection, forging parameters adjustment, cooling rate and multiple forging times.
