You have to know the quality parameters that need to be paid attention to when buying
askaluadmin > 06-25-2023, 07:36 AM
You have to know the quality parameters that need to be paid attention to when buying aluminum foil
In the production process of aluminum foil, it has to go through multiple processes such as rolling, finishing, annealing, packaging, etc., and the production process is interlocking. Any problem in any link may lead to quality problems of aluminum foil. The quality defects of the purchased aluminum foil products will not only affect the appearance, but also directly affect the quality of the produced products, and what's more, it will directly cause the aluminum foil to break and stop, which will greatly affect the production efficiency. So how to distinguish the quality of aluminum foil?
According to the experience of people in the aluminum industry, you can directly use your "eyes" to detect the quality of aluminum foil. However, to distinguish the quality of aluminum foil, we should first understand what are the common quality defects of aluminum foil.
Today, I will sort out the most comprehensive aluminum foil quality defect problems in history for you, and attach a high-definition large picture of the problematic aluminum foil. When we buy the aluminum foil back, we only need to diagnose the problem once for this batch of aluminum foil. Whether the quality is good or bad is natural. You can get it out!
1. Aluminum foil bumps
▲ Aluminum foil bruising refers to the damage on the surface or end surface of the foil material after it collides with other objects during handling or storage. Most of the bruises are caused by carelessness in aluminum foil packaging.
2. Corrosion
▲ The surface of the aluminum foil is in contact with the surrounding medium, and after a chemical reaction or electrochemical reaction occurs, defects will be generated on the surface of the aluminum foil, the surface of the corroded aluminum foil will lose its luster, and gray corrosion products will be produced in severe cases. The corroded aluminum foil will have a great impact on the aesthetics of the products produced by the terminal.
3. Surface air bubbles
▲ Aluminum foil with surface bubble defects will have irregular circular or strip-shaped cavity bulges on the surface of the foil; the edges of the bulges are smooth, the two sides are asymmetrical, and the distribution is irregular. If the force is unbalanced, it is likely to cause the breakage and shutdown.
4. Dark Side Streaks
▲ Most of the stripes on the dark side appear on double-heeled products, and the dark side has obvious light and dark stripes along the rolling direction, which affects the ap