Aluminum foil production technology has undergone great changes in recent years. 5.5 micron, 5 micron, and 4.5 micron products that were considered mysterious in the past have almost become common products with the improvement of smelting technology. The high attention to the surface has made the detection method of printing and colorimetric become the conventional detection method of aluminum foil. The number of pinholes measured in square meters has become more accurately measured in square centimeters. Pinhole online detection is increasingly used in finishing equipment. The widespread use of dyne pens is replacing the original water brush test. It has become a trend to accurately adjust the properties of aluminum foil by means of micro-alloying. The stricter control of harmful elements from tobacco packaging and food packaging is placing more stringent requirements on aluminum foil production technology. Tetra Pak packaging is also becoming a product with no technical difficulties other than certification thresholds. The widespread application of rewinding machines has made the verification of aluminum foil product quality a necessary means.
Aluminum foil, especially double-zero foil, is becoming a common commodity, a standardized product with increasingly stringent requirements and increasingly mature technology.
Aluminum foil production equipment has been digested and absorbed domestically, thanks to more than 30 years of understanding and accumulation of core technologies in aluminum foil production.
From all angles, China has become the world's aluminum foil powerhouse. It not only has the world's largest production capacity, but also brings together the world's most advanced equipment, accumulated the most advanced technology, and has the world's largest production enterprise.
According to the use of aluminum foil, it can be divided into: soft packaging foil, cardboard foil, cigarette foil, wine label foil, cable foil, pharmaceutical foil, household foil, etc. These are basically traditional aluminum foils used in packaging. With the continuous development of science and technology, the use of aluminum foil in electronic products has also emerged, and the usage in electronic products has also increased several times year by year. Such as: aluminum foil for batteries, electronic capacitor foil, electronic label foil, etc.
Generally speaking, electronic capacitor foil requires the thinnest aluminum foil thickness. The commonly used specifications are around 0.005~0.006mm, and it is required to be in an annealed state.
The commonly used thickness of battery aluminum foil is about 0.01~0.03mm, and the requirements are generally H18 hard state. This product has high requirements on the appearance of aluminum foil, especially the plate shape.
Electronic label foil is an aluminum foil made into an electronic closed circuit. The thickness is generally above 0.015mm and is in an annealed state. This type of product has higher requirements for the pinholes, pits, and pits of the aluminum foil.
With the continuous enrichment and development of electronic products, it is believed that the application of aluminum foil in the electronic product market will become more and more extensive and will become a new important development trend and opportunity for the aluminum foil industry.
