Wasakhowga hoos u dhiga ayaa inta badan ka muuqda dusha sare ee aluminium bireed ee ku jira 0 gobol. Ka dib markii biraha aluminiumka la tirtiro, waxa lagu tijaabiyaa habka biyaha cadayashada, oo ma gaadho heerka lagu sheegay tijaabada cadayashada biyaha.
Foornada aluminiumka ah ee u baahan baaritaanka biyaha-dhaqidda ayaa inta badan loo isticmaalaa daabacaadda, isku dhafan oo leh walxo kale, iwm. Sidaa darteed, 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.
