Alyuminiy rulonlarni anodlash qanday rol o'ynaydi?

Alyuminiy rulonlarni anodlash qanday rol o'ynaydi?

Alyuminiy rulonlari va alyuminiy qotishmalari havoda oksidlanadi. Albatta, alyuminiy yuzasida hosil bo'lgan oksid plyonkasi amorf tuzilishga ega, alyuminiy metall yuzasi asl yorqinligini yo'qotishiga olib keladi, garchi bu sof tabiiy oksid plyonkasi qatlami alyuminiy metall yuzasini biroz passivatsiya qiladi, but it is very thin, about 4-5nm, and has large porosity and poor physical properties. It cannot effectively prevent further corrosion of aluminum metal by various substances in the air.

Masalan, 1050 alyuminiy lasan is treated by anodic oxidation, which can make the surface of aluminum and aluminum alloy get a high-density film layer (from tens of microns to hundreds of microns) that is much thicker than the natural oxide film.

This layer of man-made oxide film is closed again, va kristall tuzilishga ega bo'lmagan oksid plyonkasi modifikatsiyalangan epoksi qatronining oksid plyonkasiga aylanadi., va g'ovakligi ham yopiq bo'ladi, metall yuzaning porlashi uzoq vaqt davomida o'zgarmasligi uchun, va korroziyaga qarshi xususiyatlar , zarba chidamliligi asta-sekin yaxshilanadi, va dekorativ san'atning ko'rinishini bo'yashdan keyin ham olish mumkin. Chunki alyuminiy va metall mahsulotlari anodlashdan keyin ko'plab xususiyatlarga ega, alyuminiy anodlash jarayoni metall alyuminiyning sirtini qayta ishlashda keng qo'llaniladi.