Mmetụta nke usoro ọgwụgwọ nke aluminom

Mmetụta nke usoro ọgwụgwọ nke aluminom

A maara nke ọma na aluminom na alloys oxize na ikuku, nke a na-eme ka ihe nkiri a na-eme ka ọ bụrụ ihe nkiri a na-eme ka ọ bụrụ nke ọma Ga-echebe elu akụkụ alumini mana ọ dị oke mkpa, ihe dị ka 4 ruo 5 nm, ma nwee nnukwu ụlọ na akụrụngwa ndị na-arụ ọrụ. Ọ nweghị ike iji ike nke ọma gbochie corrosion nke abụọ nke igwe na-enweghị usoro dị iche iche na ikuku.

Mgbe ihe mgbochi, akụkụ nke alumini nwere ike nweta oyi akwa nwere ike nweta oyi fim (site na iri nke micrometers ka ọ bụrụ otu narị micrometers) nke dị oke njọ karịa ihe nkiri mara mma. A na-emezi ihe nkiri oxigi a oxigical oxide a akara akara. A na-agbanwe ihe nkiri amorphous n'oxidexigine mara mma nke ukwuu, na-emechikwa pores. Ya mere, nke ọma nke elu igwe na-agbanwe agbanwe, na nguzogide corsonion na ike nke ọrụ ike ka mma. Mgbe ịchasịrị, enwere ike ịnweta ọdịdị eji achọ mma. Ebe ọ bụ na akụkụ aluminom nwere ọtụtụ njirimara mgbe ọdịdị ahụ, usoro a alluminium usoro a na-ejikarị ọgwụgwọ akụkụ nke aluminom . A na-ekekarị ngwa na ụlọ ọrụ nwere ike nkewa na ụdị ndị a.

(1) mgbochi nke akụkụ aluminom : Ihe nkiri a nwetara site na nchịkọta nke a na-edobe ọgwụgwọ kwesịrị ekwesị ma nwee ezigbo nkwụsi ike na ikuku. N'agbanyeghị ihe nkiri oxide na-enwe site na sulfuric acidiyo ma ọ bụ chromic acidic acù na usoro dị mma, dị ka ite na-eji ite, ite, igwe mkpuchi igwe, na dika.

(2) Nchedo-2) Enwere ike ịnweta agba dị iche iche na ụdị na-egbuke egbuke na ụdị ihe nkiri oxide. Ọdịdị nke usoro ọ bụla dị ka ọtụtụ usoro ọpụpụ nke oxidation , ọkụ na-ere ihe, oxidation nke mbipụta ọdịnala, wdg. Nke a na-acha uhie uhie nke agba bụ ma akwa mara mma na mgbochi mgbochi corrisoon.

(3) dị ka ihe siri ike na-eyi akwa, a pụrụ inweta sulfuric acid ma ọ bụ ihe siri ike ma ọ bụ nke siri ike ma ọ bụ na-agbanwe ọnọdụ usoro ọdịbendị, yana iji mmanụ na-ahọpụta site na iji ya fim oyi. A na-etinye ya nke ọma na ọnọdụ nke ịrụ ọrụ na esemokwu ahụ ma nwee njiri mara nke lubrication ma na-eyi ntuli aka, dịka cylinders nke ụgbọala na tractors.

(4) Dị ka igwe eletrik na-egbochi ọnya nke a na-eme bụ ihe ndị dị mma nke eji eji elegide anya, yana ọkpụrụkpụ nke oyi akwa ahụ. Njirimara a nwere ụfọdụ ihe bara uru dị ka mkpuchi eletrik ma enwere ike iji ya mee ihe dịka ikike. A nwekwara ike iji atụmatụ a rụọ ọrụ na ngwa eletriki ndị ọzọ.

(5) Dị ka ala oyi akwa maka eserese na electroplating: dị ka oke oyibo nwere ike ime, enwere ike iji ya dị ka ala oyi akwa maka eserese. Enwere ike iji oyi akwa nke phosphoric acid dị ka akwa oyi akwa na foto aluminom.