High quality aluminum plate aluminium sheet needs to be hot rolled, annealed and heat treated in the process of production. In order to obtain more smooth and smooth aluminum plate sheet, hot rolling is necessary and sufficient lubrication must be carried out. Water base emulsion is often used in aluminum plate lubrication. It is made of emulsion and water, and the concentration should be slightly less when rolling aluminum sheet.
Hot/cold rolled aluminium sheet in industrial production in great demand, because of its wide range of aluminum production, need to master certain process.
Manufacturing process of high quality aluminium sheet:
On the edge of each lane didn't crack under the circumstances of pure aluminum cold rolling total pressure rate can reach more than 95%, in order to prevent the crack boundary and fault belt, for poor plastic alloy hot coil annealing, needs to be done in the process of cold rolling and two intermediate annealing.In order to obtain more high-quality aluminum plate, require more complex process.
In order to obtain good flatness of hot rolled aluminum coil, must control the rolling roll gap shape, using the method of hydraulic bending roll body, partition and cooling, but also with the regulation of the press rules and rolling speed. In addition, the emulsion sprayed on the roller can also play a role of cooling in addition to the role of lubrication. The pressure and flow of the emulsion at the nozzle should be set in advance so as to ensure smooth flow.
By cold rolling way can make the aluminum alloy sheets become more flat, smooth, uniform thickness of tissue with better performance, can be performed in a single frame or cold rolling mill. Under the condition of allowable equipment capacity, good lubrication and cooling, and no crack edge, cold rolling reduction rate is adopted. Pass reduction rate can pass rolling force is basically the same, so as to ensure a uniform thickness of aluminum precision plate rolling, better flatness.