Yuav ua li cas siab - precision machining ua tiav los ntawm anodizing?

Kev Sib Tham Txog Kev Ua Tau Zoo -Cov Txheej Txheem Anodizing Precision

Anodizing yog txheej txheem txheej txheem hlau saum npoo, dav siv rau kev hloov kho ntawm txhuas thiab nws cov alloys. Nrog rau kev nce precision ntawm kev tsim khoom, kev ua tiav siab -kev tswj xyuas qhov tseeb hauv anodizing tau dhau los ua qhov tseem ceeb hauv kev lag luam. Kab lus no tshawb nrhiav txoj hauv kev kom ua tiav qib siab -precision anodizing los ntawm ntau yam, suav nrog cov txheej txheem kev tswj hwm, kev ua kom zoo ntawm cov cuab yeej, cov txheej txheem ua ntej, thiab tom qab- thev naus laus zis kho.

I. Precise Control of Process Parameters

Thawj qhov xwm txheej rau kev ua tiav siab -precision anodizing yog tsim kom muaj qhov tseeb thiab tswj tau cov txheej txheem parameter. Electrolyte kub, qhov ceev tam sim no, qhov hluav taws xob, thiab lub sijhawm yog plaub qhov tseem ceeb uas cuam tshuam rau qhov zoo thiab qhov tseeb ntawm cov oxide zaj duab xis.

Kev tswj qhov tseeb ntawm electrolyte kub yuav tsum nyob rau hauv ± 0.5 degree. Qhov kub hloov pauv tuaj yeem ua rau qhov tsis sib xws ntawm oxide zaj duab xis kev loj hlob. Siv ntau-theem cua txias system thiab faib cov ntsuas kub ntsuas tuaj yeem txhim kho qhov ntsuas kub kom raug. Kev tswj qhov yuam kev ntawm qhov ceev tam sim no yuav tsum tsawg dua 3%. Kev siv lub zog hluav taws xob tas mus li nrog lub sijhawm tiag tiag - lub sijhawm tawm tswv yim tuaj yeem ua kom muaj kev ruaj ntseg tam sim no. Qhov voltage hloov pauv yuav tsum tau tswj tsis pub dhau ± 1V. Tshwj xeeb tshaj yog nyob rau hauv nyuaj anodizing, txawm me me voltage hloov yuav ho cuam tshuam rau hardness ntawm zaj duab xis. Lub sijhawm ua haujlwm tswj qhov tseeb yuav tsum mus txog qib thib ob. Lub sijhawm ua haujlwm tsis siv neeg lub sijhawm ua ke nrog cov txheej txheem cuam tshuam kev tshawb nrhiav tuaj yeem ua kom paub tseeb qhov tseeb ntawm lub sijhawm tswj.

II. Cov cuab yeej tshwj xeeb thiab cuab yeej tsim

High - cov txheej txheem anodizing qhov chaw tshwj xeeb rau cov khoom siv. Lub xovtooj ntawm electrolytic yuav tsum tau ua los ntawm corrosion- cov ntaub ntawv tiv taus nrog cov phab ntsa sab hauv smoothness Ra tsawg dua lossis sib npaug li 0.8μm kom txo cov electrolyte ntws cuam tshuam. Qhov tsis sib xws ntawm qhov anode-cathode qhov sib nrug yuav tsum tsawg dua 1 hli, thiab cov khoom siv hluav taws xob kho tau yuav tsum tau siv los xyuas kom meej qhov sib txawv. Lub hwj chim mov yuav tsum muaj DC tso zis muaj peev xwm nrog ib tug ripple yam tsawg tshaj li 1% thiab yuav nruab nrog multi-seg programmable tswj.

Nyob rau hauv cov nqe lus ntawm cov cuab yeej tsim, clamping thiab positioning raug thiab conductivity uniformity yuav tsum tau xav txog. Cov khoom siv tshwj xeeb yuav tsum xyuas kom meej tias qhov cuam tshuam ntawm qhov chaw ua haujlwm ntawm qhov chaw ua haujlwm thiab cov khoom siv hluav taws xob yog nyob rau hauv 0.1mm, thiab ntau -taw tes tsim kev sib cuag yuav tsum tau txais, nrog kev sib cuag tsis sib txawv tsis tshaj 5%. Rau txoj haujlwm - zoo li tus workpieces, lub contour electrode system tuaj yeem tsim los ua kom cov hluav taws xob sib faib ntau dua.

III. Pretreatment Process Optimization

Qhov zoo ntawm pretreatment ncaj qha cuam tshuam rau precision kev ua tau zoo ntawm anodizing. Cov txheej txheem degreasing yuav tsum tau tshem tawm cov roj kom huv si, thiab cov roj seem ntawm cov yeeb yaj kiab yuav tsum tsawg dua 10nm. Rau alkaline etching, tus nqi corrosion yuav tsum tau ua tib zoo tswj. Siv cov tshuaj tiv thaiv corrosion tuaj yeem txwv qhov kev hloov pauv mus rau hauv ± 5%. Cov txheej txheem polishing yuav tsum xaiv cov neeg kho tshuab polishing lossis electrolytic polishing raws li qhov yuav tsum tau ua tiav, nrog rau qhov roughness Ra tus nqi tswj nyob rau hauv thaj tsam ntawm 0.2-0.4 μm.

Rau cov khoom ua haujlwm uas yuav tsum tau muaj kev cuam tshuam siab, cov txheej txheem tshuaj polishing tuaj yeem ntxiv, siv phosphoric acid -nitric acid sib tov. Qhov ntsuas kub yuav tsum tswj ntawm 90-100 degree, thiab lub sijhawm ua haujlwm yuav tsum raug rau qhov thib ob. Cov dej yaug tom qab kev kho mob yuav tsum siv ntau theem countercurrent rinsing system, nrog rau cov dej tsis kam qis dua 1 MΩ·cm, txhawm rau tiv thaiv cov kab mob los ntawm impurity ions.

IV. Precise Control ntawm Electrolyte System

Kev ruaj ntseg ntawm cov electrolyte muaj pes tsawg leeg yog qhov tseem ceeb rau siab - precision machining. Cov sulfuric acid concentration nyob rau hauv sulfuric acid anodizing tov yuav tsum tau tswj nyob rau hauv qhov ntau ntawm 180-200 g / L, thiab cov ntsiab lus ntawm txhuas ion yuav tsum tsis txhob ntau tshaj 15 g / L. Ib qho kev ntsuas qhov ceev hauv online thiab ib qho kev hloov pauv tsis siv neeg yuav tsum tau siv los tswj kom muaj kev ruaj khov. Rau cov tawv anodizing, cov organic acids (xws li oxalic acid thiab malic acid) tuaj yeem muab ntxiv rau cov electrolyte los txhim kho daim nyias nyias. Qhov sib ntxiv yuav tsum tau tswj ntawm 5-15 g / L, nrog qhov tseeb ntawm ± 0.5 g / L.

Lub tshuab electrolyte pom yuav tsum tau nruab nrog 1 μm precision lim, tswj cov ntsiab lus ntawm cov ntsiab lus kom tsawg dua lossis sib npaug li 5 mg / L. Kev khiav dej num yuav tsum tau tsim raws li lub tank loj kom ntseeg tau tias cov dej ntws tawm thoob plaws hauv lub tank, nrog qhov sib txawv tsis tshaj 10%. Pulse electrolysis thev naus laus zis tuaj yeem txhim kho daim nyias nyias nyias; Cov mem tes zaus yuav tsum tau tswj ntawm 50-100 Hz, thiab lub voj voog ua haujlwm hloov tau los ntawm 30-70%.

V. Post-Kev kho mob thiab Sealing Technology

Cov txheej txheem tom qab- kev kho mob yog qhov tseem ceeb rau kev tswj xyuas qhov ruaj khov ntawm cov oxide zaj duab xis. Kev kho mob khaub thuas sib khi yuav tsum tau ua ntawm dej kub ntawm 25 ± 1℃rau 20-30 feeb; Kub sealing kev kho mob yuav tsum tau ua nyob rau hauv ib tug dej kub ntawm 96-100 degree, pH ntawm 5.5-6.5, thiab meej lub sij hawm tswj. Rau cov tawv anodized daim nyias nyias uas tsis xav tau kev sib khi, cov txheej txheem ziab kom qhuav tuaj yeem siv rau ntawm 60-80℃rau 30-60 feeb.

Hauv cov txheej txheem dyeing, dye concentration tswj qhov tseeb yuav tsum ncav cuag ± 2%, thiab qhov sib txawv xim ΔE tsawg dua lossis sib npaug li 1 yog saib hauv online siv lub spectrophotometer. Rau qhov siab -qhov tseeb, qhov kev kho kom ruaj khov tuaj yeem raug ntxiv, suav nrog kev kho cua sov ntawm 120-150℃rau 2-4 teev kom tshem tawm cov kev ntxhov siab sab hauv.

VI. Kev soj ntsuam zoo thiab cov txheej txheem tswj

Tsim kom muaj kev tshuaj xyuas zoo tshaj plaws yog qhov tseem ceeb los xyuas kom meej qhov tseeb ntawm machining. Zaj duab xis tuab yog ntsuas siv qhov ntsuas qhov ntsuas tam sim no nrog qhov tseeb ntawm ± 1μm; hardness tester siv lub microhardness tester nrog ib tug load ntawm 25-50gf; Kev ntsuam xyuas corrosion kuj yog ua raws li cov qauv ntsev tsuag tshuaj ntsuam. Dimensional soj ntsuam siv lub ntsuas peb-dimensional, nrog rau qhov tseem ceeb ntawm qhov ntev ntawm kev tswj tsis pub dhau ± 5μm.

Hais txog kev tswj cov txheej txheem, SPC cov txheej txheem kev txheeb cais tau siv, nrog rau qhov tseem ceeb ntawm CPK tus nqi Ntau dua lossis sib npaug rau 1.33. Ib qho kev ua tiav traceability yog tsim los sau cov ncauj lus kom ntxaws rau txhua pawg ua haujlwm. MES system yog siv los ua kom tau txais cov ntaub ntawv tsis siv neeg thiab kev tshuaj xyuas, txheeb xyuas tam sim thiab kho qhov sib txawv.

VII. Environmental Control thiab Kev cob qhia neeg ua haujlwm

Ib puag ncig tej yam tseem ceeb muaj feem cuam tshuam rau siab - precision machining. Rhiav kub yuav tsum tau tswj ntawm 20 ± 2 degree, av noo ntawm 40-60%, thiab huv si ntawm 100,000. Yuav tsum muaj chav fais fab sib cais kom tsis txhob cuam tshuam hluav taws xob. Cov neeg ua haujlwm yuav tsum tau txais kev cob qhia kev tshaj lij, paub txog cov txheej txheem tshwj xeeb, kev paub txog kev ua haujlwm ntawm cov cuab yeej siv, thiab tau txais kev ntsuam xyuas tsis tu ncua thiab ntawv pov thawj.

Los ntawm kev ua raws li cov txheej txheem kev ntsuas saum toj no, anodizing tuaj yeem ua tiav μm- theem kev tswj hwm, ua tau raws li qhov yuav tsum tau ua ntawm siab -kawg kev lag luam xws li aerospace, precision instruments, thiab cov khoom siv kho qhov muag. Nyob rau hauv lub neej yav tom ntej, nrog rau txoj kev loj hlob ntawm automation thiab ntse technologies, lub precision ntawm anodizing yuav tsum tau ntxiv txhim kho, muab kev lag luam kev lag luam nrog txawm zoo dua nto kho kev daws teeb meem.