The speed of natural aging of different alloys of aluminum alloy plates is very different. Some alloys only need a few days, while some alloys need several months or even years to approach a stable state. , the recrystallization process cannot be completed, the supersaturated solid solution cannot be completely synthesized, and some work hardening and quenching effects are still preserved. It is difficult to continue cold rolling without annealing, so it is necessary to stop slab annealing.
It is mainly recognized according to the requirements of the pressure processing technology and the requirements of the material application department for the performance of the product. The annealing standards often used for aluminum alloy materials in industrial production include billet annealing, center annealing and product annealing, which are recrystallized texture, two The most common case of secondary recrystallization texture is that natural aging can start immediately after quenching, or it can start after a certain incubation period. The speed of natural aging of different alloys is very different, and the phenomenon of work hardening cannot be completely eliminated.
In this case, finishing operations such as stretching and straightening can be stopped. Natural aging can start immediately after quenching, or it can start after a certain incubation period. The natural aging speed of different alloys is very different, and some alloys only It can take days, while some alloys can take months or even years to approach a steady state (weighed by changes in performance.
Continental Steel Co.,Ltd(CSC) is a pioneering manufacturer, stockist, and supplier of steel pipe products.