ã€China Aluminum Network】 Annealing treatment is a kind of heat treatment technology with the intention of obtaining uniform composition, stable or excellent technical performance. Depending on the intent and needs, annealing can be divided into homogenization annealing, recrystallization annealing, center annealing and product annealing. (1) Homogenization Annealing Homogenization annealing is mainly performed in an aluminum alloy smelter. Quenching effects can occur if the homogenization anneal cools too quickly. In order to avoid the composition of the quenching effect, the furnace should be cooled after being annealed, or be air-cooled after being released. (2) Recrystallization annealing Recrystallization annealing is used to eliminate crystal defects and work hardening caused by various plastic deformations and to improve commercial plasticity and toughness. The process of metal recrystallization is a process of nucleation and nuclear growth. (3) Center annealing In the process of cold deformation processing, when the deformation is large, one cold deformation is usually difficult to meet the required scale occupational shape, and annealing is required to eliminate work hardening and recovery plasticity so as to facilitate continuous processing and deformation. (4) Annealing of products According to the characteristics of alloys and the use requirements, annealing of products can be divided into incomplete annealing (low temperature annealing) and finish annealing (high temperature annealing). End-annealing is the cold hardening caused by cold plastic deformation, or the alloy that has undergone some quench hardening, heated to the temperature above the transformation point, and kept warm, making the alloy a single-phase solid solution, and then slowly cooling (usually furnace cooling) In order to ensure the solid solution differentiation and the dispersion of the second phase point set to proceed. Incomplete annealing is to heat the alloy to a suitable temperature below the critical point of transformation, and then cool it quickly (usually air-cooled), eliminating some cold hardening effects, so that subsequent smaller forming deformation processes, or in the progress Together with the plasticity, some strengthening effects (semi-cold hardening) obtained by cold deformation are also preserved. Hand dryer Handy Dryer,Hand Dryer,Electric Hand Dryers,Commercial Hand Dryers SHENZHEN KING OF SUN INDUSTRY CO.,LTD , https://www.handybasinfaucet.com
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