Cold rolling mainly deals with sheets that cannot be thermally strengthened. Generally, the surface requirements are relatively high, and ultra-thin materials such as single-zero foil and double-zero foil can only be rolled by cold rolling.

Relative hot rolling firstly provides blank for cold rolling, and secondly, many materials need high corrosion resistance, fatigue resistance and plasticity, which all need hot rolling.

Hot rolling and cold rolling are two common aluminum coil manufacturing processes. The main difference is that cold rolling is rolling at the recrystallization temperature, and hot rolling is rolling above the recrystallization temperature. So what's the difference in other ways?

1.Production Process

Cold rolling mainly deals with sheets that cannot be thermally strengthened. Generally, the surface requirements are relatively high, and ultra-thin materials such as single-zero foil and double-zero foil can only be rolled by cold rolling. Cold rolling is processed by a casting and rolling machine into cast and rolled coils (8mm thickness) and processed by a cold rolling mill, while hot rolling is heated by aluminum coil ingots (400-500mm thickness), and rolled by a hot rolling mill at high temperature. made.

2.Raw material supply

The difference between the two is that the billet is different. The hot-rolled blank supply is cast aluminum ingot-heated-rolled into coil for cold rolling, while the cold-rolled blank supply is cast-rolled coil-cold rolled.

3.Performance

Many materials require high corrosion resistance, fatigue resistance, and strong plasticity, which all require hot rolling. The hot-rolled aluminum coil has good surface quality, strong mechanical properties and ductility, and good oxidation effect. At the same time, the processed aluminum circles are generally processed from aluminum coils, which are naturally affected by the performance of aluminum coils.

4.Application

Cold-rolled aluminum coils are mostly used in molds, and hot-rolled aluminum coils are suitable for stamping and drawing.

5.Price

The process of cold-rolled aluminum coil is simple, and the price is cheaper than that of hot-rolled aluminum coil.

MC Aluminum specializes in the production of various specifications of aluminum sheets, aluminum coils, aluminum circles and other aluminum products, welcome to order!