How to ensure the hardness of aluminum plate/sheet
Rapid annealing: heating temperature 350 ~ 410 ℃; with the effective thickness of the different materials, holding time between 30 ~ 120min; air or water. 2) high-temperature annealing: heating temperature 350 ~ 500 ℃;
(Aluminum Plate)Product thickness ≥ 6mm, the holding time of 10 ~ 30min, <6mm, the heat through the so far; 3) low-temperature annealing: heating temperature 150 ~ 250 ℃; holding time of 2 ~ 3h; air or water.
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