Ultra-thin aluminum foil short process production process

which is characterized by:

Step 1: smelting: the use of a large-capacity regenerative melting furnace to convert the raw aluminum into liquid aluminum, after cleaning into the foundry. In the process of liquid aluminum flow, Al-Ti-B is added online to form a continuous and uniform thinning effect. The graphite rotor can be degassed and slag removed online at 730-735℃, forming a continuous and uniform slag removal effect.

Step 2: rough rolling: the first step of molten aluminum into the casting machine to cast the rolling billet; In this process, the inlet temperature of cooling water in the inner chamber roller is controlled at 20°C, and the outlet water temperature is controlled at 28-32°C. The gap between the static pressure rollers of aluminum melt is controlled at 0.004-0.005 MPa to ensure that the crystallization direction of the material is {100} area ratio >; 95%, particle size ≤ 5μm. Rolling slabs are 6.5 ~ 7.5mm thick.

Step 3:intermediate rolling: the slab is rolled again by a cold rolling machine. When the thickness reaches 4.5mm, it is sent to the annealing furnace, heated to 360°C for 2 hours, and then heated to 580°C. After standing for 18 hours, it is annealed evenly to make the grain size uniform and direction consistent. It is then cold-rolled to 0.60mm on the cold mill and then sent to the annealing furnace again. Heat to 460℃, hold for 5 hours, then reduce to 400℃, hold for 7 hours, intermediate annealing; Then continue rolling into 0.3mm thick aluminum foil cotton.

Step 4: aluminum foil rolling: use a four-high irreversible aluminum foil mill to roll more than 0.3mm aluminum foil cotton into finished aluminum foil. The ultra-thin aluminum foil production process is short, has low operating costs, and production investment scale is small. The quality of ultra-thin aluminum foil has reached the world’s advanced level. Compared with the hot rolling process, the investment cost of billet production is reduced. By two-thirds, operating costs had been cut by more than half.

Why choose us?

Henan Huawei Aluminum Co., Ltd. is the leader of many aluminum manufactures and suppliers in China. We strictly control the quality and focus on customers. We hope to have in-depth cooperation with you and provide you with high quality aluminum material products custom OEM services. If you want to get the newest and best prices by per kg or per ton standard weight, please contact us.

Aluminum foil production line


  • Package: Wooden case
  • Standard Wooden case specification: Length*Width*Hight=1.4m*1.3m*0.8m
  • Once needed,wooden case dimension could be redesigned as required.
  • Per wooden case Gross Weight scale: 500-700KG Net Weight: 450-650KG
  • Remark: For special packaging requirements, corresponding shall be added accordingly.