The 3105 aluminum sheet belongs to the 3000 series aluminum-manganese alloy, which has good rust resistance and good deep drawing effect. The strength, elongation and processing performance of 3105 aluminum sealing plate can meet the production process of automatic high-strength bottle caps, and there will be no creases or cracks during processing. In addition, the pp cap material is made of 3105 aluminum sheet, which has a flat shape, no roller printing, and no oil spots, which is convenient for later printing, and the pattern is clear and recognizable.
The production characteristics of 3105 and 8011 aluminum plates for anti-theft caps are:
1. In the process of smelting, casting and rolling, the composition content of the aluminum alloy is optimized in a small range: the weight component content of Si accounts for 0.5-0.58% of the total weight of the alloy, and the weight component content of Fe accounts for 0.6% of the total weight of the alloy. -0.68%, the weight component content of Ti accounts for 0.015-0.025% of the total alloy weight; meanwhile, the weight component content of trace elements Mn, Mg and Cu respectively accounts for ≤0.03% of the total alloy weight.
2. During cold rolling, the above cast aluminum billets are cold rolled for 9-10 passes on a cold rolling mill. The rolling thickness of the first four passes is reduced by 10-25%. The finished product of the last pass is rolled with a thickness reduction of 10-25%, and the middle 45 passes are rolled with a thickness reduction of 30-40%. The final thickness of 3000 Series Aluminum Sheet used for pp cap products is 0.19-0.21 mm
3. Annealing During the production process of the cold-rolled billet, two intermediate anneals are performed: the first time is to select a high-temperature homogenization annealing with a thickness of 2.0-2.5 mm, the annealing temperature is 530-550 degrees, and the constant temperature time is 20 hours. The second intermediate annealing with a thickness of 0.4-0.6 mm, the annealing temperature is 430-450 degrees, and the rapid annealing method of heating to the set temperature in an empty furnace is adopted. After the constant temperature time is 10-12 hours, the furnace is stopped and kept for 1 hour before the furnace is released. Finally, it will be cold rolled to the desired thickness of aluminum sheet for the production of anti-theft hat products.
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Aluminum plate for anti-theft cap | Huawei Aluminum
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