Innovative development of China's aluminum foil industry
According to statistics, as of the end of 2018, there were more than 500 aluminum flat-rolled product manufacturers in China, including billets, cold-rolled, aluminum foil and other products, more than the total aluminum flat-rolled product manufacturers in other countries. In terms of billets, it has more than 800 double-rolling production lines with a production capacity of more than 8 million tons / year; it has more than 200 ingot hot-rolling production lines with a production capacity of about 20 million tons / year. In cold rolling, there are more than 200 production lines with a production capacity of over 18 million tons per year. In terms of aluminum foil rolling, the number of professional foil rolling mills is more than 600, and the production capacity is about 4.6 million tons per year. China's aluminum hot-rolled, cold-rolled and foil-rolled production capacity accounts for more than 50% of the world's total, and cast-rolled production capacity accounts for more than 70% of the world's, making it one of the world's largest producers of aluminum sheet. This situation will not change in the next five to ten years.
Advanced technical equipment. China' aluminum foil industry is not only large in scale, but also very advanced in technology and equipment. According to incomplete statistics, in terms of hot rolling, 11 aluminum foil hot rolling production lines with imported technology have been established; 8 wide-width hot rough rolling-finishing rolling production lines; 2 Hazlet continuous casting and rolling production lines. In terms of cold rolling, 6 cold continuous rolling production lines with imported technology and 30 CVC-6 cold rolling mills have been established. In foil rolling, more than 40 wide-purpose aluminum foil rolling mills with imported technology have been built. And most of these equipment are made this century. It can be said that China now has advanced global advanced aluminum flat rolled product production technology and equipment.
In addition, the main rolling equipment such as hot continuous rolling and cold rolling manufactured by China itself has also reached a useful level. Since 1984, about 450 4 / 6-roll cold rolling mills (roll surface ≥800mm) have been manufactured in China, not only equipped with Chinese enterprises, but also complete sets of exports.
Export dependence has risen. China's existing aluminum foil production capacity far exceeds domestic demand, which can be said to be a significant surplus, so its dependence on exports is becoming higher and higher. According to customs statistics, China exported 1.29 million tons of aluminum foil in 2018, accounting for about one-third of domestic production. China has become the world's largest exporter of aluminum foil products, and its export volume is almost the same as that of other countries in the world. Of course, China ’s large export volume has also led to increased trade frictions, which makes it difficult to expand exports.