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如何快速识别劣质彩涂铝卷?

返回列表 来源: 发布日期: 2021.02.28

如何快速识别劣质彩涂铝卷?

劣质彩涂铝卷的特点:
1 彩涂铝卷化学成分不合格,掺有大量杂铝和废铝的铝型材成本大大降低,但会导致建筑铝型材化学成分不合格,严重危害建筑工程的稳定性。
2 彩涂铝卷的密封时间大大缩短,化学试剂的损耗减少,成本降低,但型材的耐腐蚀性也大大降低。

26.天物彩涂卷 (1)
铝线圈
三。 彩涂铝卷氧化膜厚度很薄。根据标准,建筑铝型材的氧化膜厚度不应小于10um(微米)。如果厚度不够,铝型材表面容易生锈和腐蚀。一些没有生产名称、厂址、生产许可证和资质证书的铝型材氧化膜厚度只有2~4um,有的甚至没有氧化膜。据专家测算,减少1微米氧化膜厚度,每T段可降低耗电成本150元以上。
4化学成分不合格。大量添加杂铝和废铝可以大大降低成本,但会导致建筑铝型材化学成分不合格,严重危害建筑工程的稳定性。
不合格的铝型材,由于受到空气、雨水、阳光等的影响,会导致铝型材变形,甚至导致玻璃开裂、脱落等现象。

Characteristics of inferior aluminum profiles:
1. The chemical composition is unqualified, and the cost of aluminum profiles doped with a large amount of miscellaneous aluminum and waste aluminum is greatly reduced, but it will lead to unqualified chemical composition of building aluminum profiles, which seriously endangers the stability of construction projects.
2. The sealing time of inferior aluminum profiles is greatly reduced, the loss of chemical reagents is reduced, the cost is reduced, but the corrosion resistance of profiles is also greatly reduced.
Aluminum coil
3. The thickness of oxide film is thin. According to the standard, the thickness of oxide film on building aluminum profile should not be less than 10um (micron). If the thickness is not enough, the surface of aluminum profile is easy to rust and corrode. The oxide film thickness of some aluminum profiles without production name, plant site, production license and qualification certificate is only 2 to 4um, and some even have no oxide film. According to experts' estimation, reducing the thickness of 1 um oxide film can reduce the cost of power consumption by more than 150 yuan per T-section.
4. The chemical composition is unqualified. Adding a large amount of miscellaneous aluminum and waste aluminum can greatly reduce the cost, but it will lead to unqualified chemical composition of building aluminum profile, which seriously endangers the stability of construction engineering.
Unqualified aluminum profiles, due to the influence of air, rain, sunlight and so on, will lead to deformation of aluminum profiles, and even lead to glass cracking, falling off and other phenomena.

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