Aluminum and aluminium alloy sheets and strips are supplied by hot rolling, annealing, various grades of soft and various heat treatment conditions.
The preparation before hot rolling mainly includes quality inspection of ingot, soaking, sawing, milling, aluminium cladding and heating, etc.
In semi-continuous casting, the cooling rate is very high, the dispersion process in solid phase is difficult, and the chemical composition and structure of ingot are uneven, such as intragranular segregation, which reduces the plasticity.
When there are defects such as segregation float, slag inclusion, scarring and crack on the surface of ingot, milling surface (see milling surface of non-ferrous metal alloy ingot) should be carried out, which is an important factor to ensure good surface quality of products.
Hot rolling: Hot rolling of aluminium alloy ingot is to supply billet for cold rolling or directly produce thick plate in hot rolling condition.
Hot rolling process includes pass reduction rate, rolling temperature, rolling speed, lubrication and cooling, etc.
The above information is our aluminium plate manufacturer's collation and publication hope to help you with our website is: http://www.jndclyxgs.com!