3003 aluminum plate is often used in ships, ships, vehicle materials, automobile and aircraft plate welding parts, pressure vessels requiring strict fire protection, refrigeration equipment, TV towers, drilling equipment, transportation equipment, missile components, armor, etc. The density formula and calculation of 3003 aluminium plate are: length mm*width mm*height mm*0.00000272.
The semi-continuous casting method is used to obtain aluminum ingots, and after sawing and milling, heating, hot rolling, cold rolling, cleaning and straightening, and transverse shearing, alloy 3003 aluminum sheet with a thickness of 2.0-4.0 mm and a state of H14 are obtained;
1, Ingot heating and heat treatment:
Before hot rolling, the flat ingot is heated at 510±10℃ and the holding time is 3~6 h, which can reduce the segregation inside the ingot, dissolve the non-equilibrium phase of the internal structure, improve the hot rolling deformation process performance, and obtain good quality Microstructure and properties of hot-rolled strip. If the temperature is too high, it is easy to overheat, and if the holding time is too long, it is uneconomical to waste energy.
2, Hot rolled:
The final rolling temperature of hot rolling is controlled at 320℃-340℃, and is adjusted according to the total reduction ratio of cold rolling, so as to finally achieve fine and uniform grains and phases.
3, Cold rolled:
The cold rolling processing rate is 20~30%, which can not only ensure sufficient work hardening, but also reduce the surface roughness of the hot rolled aluminum coil.
4, Cleaning and straightening:
Foreign matter such as aluminum powder and oil stains on the surface of the aluminum coil can be removed by cleaning. The aluminum coil can be straightened by stretching and bending to eliminate the plate shape defect, improve the flatness, and facilitate the subsequent processing of the aluminum coil, , in the cross-cutting machine to open the flat cutting sheet.