Pane idzi shanduko muhukuru hwearuminiyamu alloy pamberi uye mushure me oxidation!?

Vanhu vazhinji vane mubvunzo: "Sei pores achikura mushure me oxidation?" Izvi zvinofanirwa kutsanangurwa kubva pamusimboti weiyo oxidation, oxidation yakasiyana nekupfapfaidza kana electroplating, anodizing inoitwa pamusoro pearuminiyamu alloy, inzira yekuita kubva pamusoro kuti ibudise iyo oxide firimu.

Kazhinji, kukura kweiyo oxide firimu kunosanganisira zvinhu zviviri zvinotevera: (1) kuumbwa kwefirimu (2) electrochemical dissolution process yefirimu.

Panguva yemagetsi, okisijeni nealuminium zvine hukama hukuru, uye aluminium substrate inokurumidza kuumba dense isina-porous barrier layer, iyo ukobvu hunoenderana ne tank voltage.

Nekuda kwehukuru hukuru hwealumina maatomu, inowedzera, iyo inovharira layer inova isina kuenzana, zvichikonzera kusaenzana kwazvino kugovera, kushoma kushoma muconcave, hombe ikozvino, uye zvakapesana neiyo convex.

Electrochemical dissolution and chemical dissolution of H2SO4 inowanikwa mugomba pasi pechiito chemunda wemagetsi, uye mhango zvishoma nezvishoma inova gomba uye rusvingo rwegomba, uye chipingamupinyi chinotamirwa kune porous layer.

Iyo simbi kana alloy inoshandiswa seanode, uye iyo oxide firimu inoumbwa pamusoro payo ne electrolysis. Iyo simbi oxide firimu inoshandura mamiriro epamusoro uye kuita, senge pendo pevara, kunatsiridza corrosion kuramba, kuwedzera kupfeka kuramba uye kuoma, kuchengetedza simbi pamusoro. Aluminium anodizing, aruminiyamu uye alloy ayo anoiswa mune inoenderana electrolyte (senge sulfuric asidhi, chromic asidhi, oxalic asidhi, etc.) sezvo anode, pasi chaiwo ezvinhu uye akaororwa ano, electrolysis. The anodiC Aluminium kana alloy yaro yakasvibiswa kuti iite chidimbu chealuminium oxide pamusoro, nehupamhi hwe5 kusvika ku30 microns, uye yakaoma anodic oxide film inogona kusvika 25 kusvika ku150 microns.

Basa rekutanga anodizing

Mukuita kwekugadzira oxide firimu, zvinodikanwa kuita alkali etching uye polishing basa mukutanga.

Alkali corrosion ndiyo nzira yekubvisa uye kuenzanisa iyo yakasikwa oxide firimu (AL2O3) pamusoro pealuminium. Iko kumhanya kwealkali corrosion kunoenderana nekudzika uye tembiricha yekugezesa alkali, izvo zvinoenderana zvakanyanya nedosi yealkali corrosion agent (sodium gluconate) uye zviri mukati mearuminiyamu ion (AL3+). Aluminium pamusoro pemhando, kunzwa, flatness uye oxide firimu electroplating, alkali corrosion zvese zvinotora basa rinoita.

Chinangwa che alkali etching ndechokubvisa iyo oxidized firimu yakaumbwa pamusoro pezvikamu zvealuminium nekushanda kunopisa kana pasi pemamiriro echisikigo, pamwe chete nemafuta akasara akaiswa panguva yekugadzirwa kwemukaka nekugadzira kuumbwa. Kana basa iri raitwa zvakakwana rinotarisa kiyi yemhando yeanodic oxide film yakawanikwa. Pfungwa huru dzekuteerera ndedzinotevera. Nyatsoita basa rakanaka rekuongorora alkali isati yaora, yakaona kuti haina kufanira kurapwa kwekuora kwealkali inofanira kutorwa pachine nguva. Iyo pretreatment nzira pamberi pe alkali etching inofanirwa kuve yakakodzera uye yakakwana. Tenzi mamiriro etekinoroji e alkali etching oparesheni nenzira kwayo.

Inoitwa pamushini wekupukuta, iyo Aluminium Profile inoiswa patafura yebasa nguva dzose, uye nzvimbo yacho inobatwa uye yakakwizwa nepamusoro-soro inotenderera inopenya vhiri, kuitira kuti nzvimbo yacho ive yakatsetseka uye yakatsetseka, uye kunyange girazi rinowanikwa. Kupukuta kunowanzoshandiswa mukugadzira kubvisa extrusion streaks, saka inonziwo "mechanical sweep" panguva ino.

sum up

Shanduko yealuminium alloy size inogona kusarudzwa, zvichienderana neiyo oxidation nzira, nguva, uye pre-kurapa maitiro.

Saizi diki: Panguva yese yeoxidation process, zvinodikanwawo kunyudza iyo aruminiyamu alloy mu sulfuric acid mhinduro, iyi nhevedzano yekushanda ichakonzera kuora kwealuminium alloy, saka patinoona chigadzirwa chealuminium alloy zvakare, ukuru hwayo huchava hudiki nekuda kwekuora.

Saizi yakakura: Kuita yakaoma oxidation, unogona kuita saizi yese yealuminium alloy ine kuwedzera kukuru.

Hunhu hwealuminium alloy kazhinji hunoratidza kuwedzera kuri pachena.