Idoti idinku ni pataki han lori dada ti bankanje aluminiomu ni 0 ipinle. Lẹhin ti aluminiomu bankanje ti wa ni annealed, o ti wa ni idanwo nipasẹ awọn omi brushing ọna, ati pe ko de ipele ti a pato ninu idanwo fifọ omi.
Aluminiomu bankanje ti o nilo idanwo fifọ omi ni a lo fun titẹ sita, apapo pẹlu awọn ohun elo miiran, ati be be lo. Nitorina, the surface of the aluminum foil must be degreasing clean and reach the level specified by the water-washing test.
The main reasons for unclean degreasing: excessive oil on the surface of the aluminum box; excessive slitting tension; unreasonable annealing process.
