high quality anodizing tshuab semi pib aluminium anodizing kab
① Aluminium profile nto kho:
Kev kho deg ntawm aluminium profiles, tseem hu ua deg pretreatment, yog siv lub cev thiab tshuaj lom neeg los tshem tawm cov av ntawm qhov chaw ntawm aluminium profiles, kom lub cev txhuas profile raug, uas yog yooj yim rau tom qab oxidation kev kho mob ntawm txhuas. profile nto.
② Aluminium profile nto degreasing txheej txheem:
Lub hom phiaj ntawm cov txheej txheem degreasing rau aluminium profiles yog tshem tawm cov roj lubricating roj thiab cov roj los tiv thaiv corrosion ntawm aluminium profiles, nrog rau cov av thiab impurities adhering rau saum npoo ntawm cov profiles, kom ntseeg tau tias cov xim alkali corrosion ntawm aluminium profiles, thiab los xyuas kom meej qhov huv ntawm alkali etching tanks;thiab txhawm rau txhim kho qhov kev kho saum npoo zoo ntawm aluminium profiles.
③ Aluminium profile acid etching txheej txheem:
Cov txheej txheem acid etching rau ntawm qhov chaw ntawm aluminium profiles yog los ua cov txheej txheem acid corrosion tom qab degreasing aluminium profiles.Lub hom phiaj tseem ceeb yog tshem tawm cov oxides tsim tom qab oxidation ntawm lwm yam hlau ntsiab nyob rau saum npoo ntawm aluminium profiles thiab oxide films lawm tsim los ntawm cov profiles;nws yuav tsum tau tam sim ntawd tom qab kev kho acid corrosion.Ua cov dej ntxuav, thiab qhov kub ntawm cov dej ntxuav yog tswj kom ntxov li 50 ° C kom tsis txhob ntws cov cim ntawm qhov profile, thiab tom qab ntawd ntxuav nrog dej ntws.Txij li thaum cov txhuas profile muaj tooj liab, qhov saum npoo yuav tsaus tom qab cov kua qaub corrosion, thiab nws yuav tsum tau soaked nyob rau hauv nitric acid tov rau 3-5 feeb kom lub nto ci nyiaj.
④ Alkaline etching txheej txheem ntawm txhuas profiles:
Lub hom phiaj tseem ceeb ntawm cov txheej txheem alkali etching ntawm aluminium profiles yog roughly tib yam li cov kua qaub etching txheej txheem, kom tshem tawm cov residual tshuaj thiab metamorphic txheej nyob rau saum npoo ntawm cov txhuas profiles thaum lub sij hawm oxidation txheej txheem, thiab tshem tawm cov khawb tsis xws luag sab laug ntawm lub nto ntawm aluminium profiles thaum lub sij hawm extrusion txheej txheem;Kev kho deg alkali etching plays lub luag haujlwm tseem ceeb hauv tag nrho qhov zoo ntawm aluminium profile nto.
⑤ Aluminium profile neutralization txheej txheem:
Lub hom phiaj ntawm cov txheej txheem aluminium profile neutralization yog tshem tawm cov tooj liab, manganese, hlau, silicon thiab lwm yam hlau alloy lossis impurities uas nyob rau saum npoo ntawm aluminium profile tom qab acid etching thiab alkali etching kho, uas yog insoluble hauv alkaline tov, thiab neutralize aluminium profile.Cov lye tshuav tom qab kev kho alkaline etching feem ntau yog siv los siv 30% -50% nitric acid tov.Rau siab silicon aluminium alloys, nrum rau hauv alloys, siv ib tug sib tov ntawm nitric acid thiab hydrogen fluoride nyob rau hauv ib tug ntim ratio ntawm 1: 3 acid.Silicon reacts nrog hydrogen thiab hydrofluoric acid los tsim fluorosilicic acid thiab tawm ntawm txhuas nto.
⑥ Anodizing kev kho mob ntawm aluminium profiles:
Cov txheej txheem ntawm anodizing aluminium profile yog siv cov tshuaj raws li qhov nruab nrab, thiab siv cov lus tso tawm los tsim cov oxide zaj duab xis rau saum npoo ntawm aluminium profile, kom cov txhuas profile muaj super corrosion kuj, vim cov txheej txheem tiv thaiv tau txais. los ntawm anodized txhuas profile Nws muaj siab hardness thiab corrosion kuj, thiab tus qauv thickness yog 10-12μ, uas yuav zoo dua txhim kho oxidation tsis kam ntawm txhuas profiles thiab txhim kho qhov zoo nkauj ntawm cov profiles.
Sulfuric acid anodization feem ntau siv 10-20% H2SO4 raws li cov electrolyte, kev ua haujlwm kub yog 15-20 ℃, qhov ceev tam sim no yog 1-2.5A / dm2, thiab lub sij hawm electrolysis nyob ntawm cov zaj duab xis thickness, feem ntau 20-60min.Cov khoom siv hluav taws xob ntau tshaj plaws yog tam sim no ncaj qha.Qhov kev siv hluav taws xob sib txawv nyob ntawm seb qhov conductivity, kub thiab cov ntsiab lus txhuas ntawm cov electrolyte.Feem ntau, nws yog 15-20V.Cov txheej txheem tsis muaj feem cuam tshuam rau kev ua haujlwm ntawm daim nyias nyias.
⑦ Aluminium profile nto sealing kev kho mob:
Tom qab cov txhuas profile yog anodized, micropores yuav tsim nyob rau saum npoo, uas yooj yim rau oxidized thiab corroded thaum siv.Kev kho sealing yuav tsum tau ua tom qab kho anodizing.Cov txheej txheem lub qhov yog los ntawm cov teb chaws Europe), sulfuric acid anodizing feem ntau siv 10-20% H2SO4 raws li cov electrolyte, ua hauj lwm kub yog 15-20 ℃, tam sim no ceev yog 1-2.5A / dm2, lub sij hawm electrolysis nyob ntawm lub thickness ntawm zaj duab xis. kev xav tau, feem ntau hauv 20-60min.Cov khoom siv hluav taws xob ntau tshaj plaws yog tam sim no ncaj qha.Qhov kev siv hluav taws xob sib txawv nyob ntawm seb qhov conductivity, kub thiab cov ntsiab lus txhuas ntawm cov electrolyte.Feem ntau, nws yog 15-20V.Cov txheej txheem tsis muaj feem cuam tshuam rau kev ua haujlwm ntawm daim nyias nyias.
