ʻO ka pale ʻekolu no ka mālama ʻana o Dacromet

Kau ʻia ma 2018-08-13ʻO ke kumu o ka lāʻau lapaʻau Dacromet e hoʻokaʻawale i ka pilina ma waena o ka wai, oxygen a me ka hao e loaʻa ai kahi hopena antiseptic ikaika.ʻO ke kumu nui ka hui pū ʻana o ʻekolu ala palekana.

ʻO ka hopena pale: ʻO ka zinc flaky a me nā papa alumini i loko o ka uhi e uhi ʻia ma ka ʻili o ke kila e hana i ka papa pale mua, ka mea e keakea ai i ke ʻano corrosive e like me ka wai a me ka oxygen mai ka hoʻopili ʻana i ka substrate, e pāʻani ana i ka hopena kaʻawale pololei loa.

Passivation: I ke kaʻina hana o ka uhi ʻana i ka waika chromic me ka zinc, ka pauka alumini a me ka metala kumu Dacromet, ke kiʻi passivation i hoʻokumu ʻia ma ka ʻili e ka hopena kemika, ʻaʻole kūpono ke kiʻi passivation i ka hopena corrosion, a hana pū nō hoʻi i mea pale.ʻO ka hana o ka media corrosive, me ka hopena pale, hāʻawi i kahi pale pale ʻelua e hoʻoikaika i nā hopena o ke kaʻawale kino.

Palekana Cathodic: ʻO kēia ka hopena pale koʻikoʻi.E like me ke kumumanaʻo o ka papa galvanized, hoʻohana ʻia ka pale cathodic i ka substrate ma ka papa kemika ma ka mōhai ʻana i ka anode.

Ma ka lima hoʻokahi, ʻo kēia mau ʻano pale ʻekolu e hoʻokaʻawale i ka hopena corrosive o ka mea ʻino ma ke kila.Ma ka ʻaoʻao hoʻokahi, ua ʻino ʻia ka substrate, a ʻaʻole ia he mea kupanaha he nui nā manawa i ka hopena pale o ka zinc electroplating kuʻuna.