The plate shape of aluminum foil wool is required to be controlled within 15I. Bad plate shapes such as loose on both sides or tight on both sides, loose or tight on both ribs, loose in the middle, etc. are not allowed. The ideal shape of the plate should be parabolic, and the convexity should be controlled within 1% of the thickness.
The technical standards of aluminum foil wool should cover the following 12 aspects: alloy and condition, coil size and tolerance, chemical composition, performance and structure, surface roughness, flatness, convexity, internal and external quality, end face quality, Packaging requirements, quality certificates and other requirements, etc. As a technical standard, each content should have specific technical requirements.
The processing rate of original aluminum foil rolling passes is generally controlled at 50%~60%, and the processing rate of aluminum foil after reducing passes is generally above 60%. The distribution of rolling reduction is based on the principle of gradually increasing the processing rate in each pass. The comparison between the reduction of passes and the original rolling processing rate is shown in Table 2 and Table 3.
