Enwere mgbanwe ndị a na oke nha nke aluminum alloy tupu na mgbe oxidation!?

Ọtụtụ ndị mmadụ nwere ajụjụ: "Gịnị mere pores ji buru ibu mgbe oxidation gasịrị?" Ekwesịrị ịkọwa nke a site na ụkpụrụ nke oxidation, oxidation dị iche na spraying ma ọ bụ electroplating, anodizing na-eme n'elu aluminom alloy, ọ bụ usoro mmeghachi omume sitere n'elu iji mepụta ihe nkiri oxide.

N'ozuzu, usoro uto nke ihe nkiri oxide gụnyere akụkụ abụọ ndị a: (1) usoro nhazi nke ihe nkiri (2) usoro mgbasa nke electrochemical nke ihe nkiri ahụ.

N'oge ọkụ eletrik, oxygen na aluminom nwere nnukwu mmekọrịta, na aluminom mkpụrụ ngwa ngwa na-etolite a ok na-abụghị porous mgbochi oyi akwa, onye ọkpụrụkpụ dabere na tank voltaji.

N'ihi nnukwu olu nke alumina atom, ọ na-agbasawanye, ihe mgbochi mgbochi na-aghọ nke na-adịghị mma, na-eme ka nkesa na-adịghị mma ugbu a, obere nkwụsị na concave, nnukwu ugbu a, na nke na-abụghị nke convex.

Mgbasa electrochemical na mgbasa nke kemịkalụ nke H2SO4 na-eme na oghere n'okpuru ọrụ eletriki, na oghere ahụ ji nwayọọ nwayọọ ghọọ oghere na mgbidi oghere, a na-ebufe ihe mgbochi ahụ na oyi akwa porous.

A na-eji ígwè ma ọ bụ alloy mee ihe dị ka anode, a na-emepụta ihe nkiri oxide n'elu ya site na electrolysis. Ihe nkiri metal oxide na-agbanwe ọnọdụ elu na arụmọrụ, dị ka agba agba n'elu, na-eme ka nguzogide corrosion na-eme ka ọ dịkwuo mma, na-eme ka ọnyà na-adịghị ike na-eyi, na-echebe elu igwe. Aluminom anodizing, aluminum na alloy na-etinye na kwekọrọ ekwekọ electrolyte (dị ka sulfuric acid, chromic acid, oxalic acid, wdg) dị ka anode, n'okpuru kpọmkwem ọnọdụ na masịrị ugbu a, electrolysis. Aluminom anodic ma ọ bụ alloy ya bụ oxidized na-eme ka oyi akwa nke aluminum oxide dị n'elu, nke nwere ọkpụrụkpụ nke 5 ruo 30 microns, na ihe nkiri oxide siri ike nwere ike iru 25 ruo 150 microns.

Na mbụ anodizing ọrụ

N'ime usoro ịmepụta ihe nkiri oxide, ọ dị mkpa ime alkali etching na polishing ọrụ na mmalite.

Alkali corrosion bụ usoro ikpochapụ na nhazi ihe nkiri oxide eke (AL2O3) n'elu aluminom. The ọsọ nke alkali corrosion dabere na ịta na okpomọkụ nke alkali bath, nke siri ike na-adabere na dose nke alkali corrosion n'ụlọnga (sodium gluconate) na ọdịnaya nke aluminum ion (AL3+). Aluminom elu àgwà, mmetụta, flatness na oxide film electroplating, alkali corrosion niile na-arụ a mkpebi siri ike.

Ebumnuche nke alkali etching bụ iji wepụ ihe nkiri oxidized kpụrụ n'elu akụkụ aluminom site na-arụ ọrụ ọkụ ma ọ bụ n'okpuru ọnọdụ eke, yana mmanụ fọdụrụnụ etinyere n'oge mmepụta nke mmiri ara ehi na imepụta ihe. Ma a na-arụ ọrụ a nke ọma na-ekpebi isi ihe dị mma nke ihe nkiri anodic oxide nwetara. Isi ihe ị ga-aṅa ntị bụ ihe ndị a. Jiri nlezianya mee ezigbo ọrụ nyocha tupu alkali corrosion, chọpụtara na ọ bụghị kwesịrị ekwesị maka ọgwụgwọ corrosion alkali kwesịrị iburu n'ọdịnihu. Usoro pretreatment tupu alkali etching kwesịrị ekwesị na nke ọma. Nnapụta ọnọdụ nkà na ụzụ nke alkali etching ọrụ n'ụzọ ziri ezi.

A na-eme ya na igwe na-egbuke egbuke, a na-etinye profaịlụ aluminom na tebụl ọrụ mgbe niile, a na-emetụkwa elu ahụ aka ma na-ehicha ya site na elu na-agbagharị agbagharị polishing wheel, nke mere na elu ahụ dị mma ma dị larịị, na ọbụna mmetụta mirror. na-enweta. A na-ejikarị polishing eme ihe n'ichepụta iji kpochapụ streaks extrusion, ya mere a na-akpọkwa ya "sweep mechanical" n'oge a.

nchikota

Enwere ike ịhọrọ mgbanwe nke nha alloy aluminum, dabere na usoro oxidation, oge, na usoro ọgwụgwọ tupu oge eruo.

Obere nha: N'oge usoro oxidation dum, ọ dịkwa mkpa ịkwanye alloy aluminum na ngwọta sulfuric acid, usoro ọrụ a ga-eme ka corrosion nke aluminum alloy, ya mere, mgbe anyị na-ahụ aluminum alloy ngwaahịa ọzọ, ya size ga-aghọ. obere n'ihi corrosion.

Nha buru ibu: Iji mee oxidation siri ike, ị nwere ike ime ka ọnụọgụ nke aluminum alloy na-abawanye ụba.

Ogo nke aluminom alloy na-egosikarị mmụba doro anya.