Haomei is a leading manufacturer who supply aluminum sheet metal for sale in China with sincere service for you! As a professional aluminum sheet supplier, we have rich experience on the aluminum processing and manufacturing. There are several typical processing techniques of aluminum sheet metal.
1, Hot rolling process
The hot rolling process is gradually evolved from the method of semi-continuous casting, headcounting, milling, and then completing the processing of the product through multiple hot rolling on a single stand. Today’s hot rolling mills are divided into single stand single coil, single stand double coil and multi stand, and the thickness of the aluminum billet is rolled from 600 ~ 350mm to 8 ~ 2mm. The product range is: 1XXX, 3XXX, 5XXX, 7XXX, 8XXX series aluminum and aluminum sheet metal for sale. Hot rolled aluminum sheet products have a wide range, good quality and large output. The aluminum sheet and strip billets produced by hot rolling account for more than 65% of the total production worldwide. However, the investment in the hot rolling production line is large, and the investment in a production line is 150-20 billion yuan, which limits the development of the hot rolling process to a certain extent.
2, Casting and rolling process
The casting and rolling process is a method of directly introducing molten metal into the gap between two internal water-cooled rotating rolls, and after crystallization, solidification and deformation, the aluminum strip is drawn from the other side of the rolls. It integrates a series of complex production processes such as casting and rolling, which greatly simplifies the hot rolling production process and opens up a new way for the production of aluminum processing strips. The casting and rolling mill can directly produce aluminum coils with a thickness of 5 to 12 mm from molten aluminum, which greatly reduces the production cost of aluminum sheet metal. However, due to the limitation of the length of the cooling area and the limited cooling strength of the casting and rolling mill, the range of materials produced by the casting and rolling process is narrow, the amount of thermal deformation is small, the deep drawability is not good, the strip is easily broken during foil rolling, and the output is low. These problems The development of casting and rolling technology is limited.
3, Continuous casting and rolling process
The method of introducing molten metal into a pair of water-cooled circulating steel belts (including crawler belts), directly casting them into aluminum sheet metal for sale with a thickness of 20 to 30 mm, and then rolling them into aluminum coils by 1 to 3 racks at the rear is called continuous casting. Casting and rolling process. The range of materials produced by it is close to that of hot rolling, and the product performance is better than that of cast-rolled aluminum sheet, but worse than that of hot-rolled aluminum sheet. The quality of the processed aluminum sheet product is affected by the accumulation of subcutaneous inclusions on the upper surface of the billet, which greatly limits the development of the continuous casting process.