3003 H22 aluminum foil manufacturer
Aluminum alloy has low density but relatively high strength, which is close to or exceeds the strength of high-quality steel. It has good plasticity and can be processed into various profiles or aluminum foil rolls. It is widely used in industry, and its use is second only to steel. Some aluminum alloy materials can be heat treated to obtain good mechanical properties, physical properties and corrosion resistance. It is characterized by high hardness, but poor plasticity. Super-hard aluminum belongs to the Al-Cu-Mg-Zn series, which can be strengthened by heat treatment and is the highest strength aluminum alloy at room temperature. But the corrosion resistance is poor, and the high temperature softening speed is fast. Forged aluminum alloys are mainly Al-Zn-Mg-Si alloys. Although there are many types of added elements, the content is small, the thermoplasticity is excellent, and it is suitable for forging, so it is also called forged aluminum alloy material.
At present, the alloy used to produce container foils on the market is generally 3003 alloy or 8011 alloy. The container foil produced with 3003 alloy has good punching performance, but due to the high content of Mn in the alloy, the diameter is easy to grow during homogenization annealing, and it is rolled to the thickness of the finished product (0.03, . 08mm), the surface coverage will appear coarse grain streaks, affecting the normal use of customers; allowed, due to the characteristics of 3003 alloy itself, the material strength is higher, the loss of rolling equipment and punching equipment is prolonged, and it needs to be added at the same time A large amount of copper and manganese metals increase the production cost of enterprises. Aluminum foil for tableware produced with 8011 alloy can overcome some of the shortcomings of 3003 alloy, but due to the content of alloy elements in 8011 alloy, the performance is soft, not suitable for high-speed punching, and the punching depth is insufficient, so its use range is greatly affected. limits.
3003 H22 aluminum foil has undergone multiple tests for bacteria and molds, and organized production in strict accordance with industry standards. The content of heavy metals does not exceed 0.25 ppm to ensure safety and health. The lunch box made with it meets the national sanitary standards for food containers and conforms to the international environmental protection trend. Today, the pace of modern life is accelerating, because this kind of aluminum foil tableware can be directly heated on a gas stove or baked in a microwave oven, which brings great convenience to people's lives.
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