Anodizing kho qauv ntawm txhuas nto

Nto Pretreatment

Tsis muaj teeb meem dab tsi siv los ua cov txheej txheem aluminium cov ntaub ntawv thiab cov khoom lag luam, Yuav muaj av thiab tsis xws luag nyob rau saum npoo rau kev sib txawv, xws li hmoov av, Hlau oxides (ntuj los yog aluminium oxide zaj duab xis tsim nyob rau ntawm qhov kub), Residual Roj, Asphalt Marks, Artificial Nqa Mudra (Lub ntsiab ntawm cov fatty acids thiab nitrogenous

1. Oxalic Acid Anodizing

Feem ntau ntawm cov sulfuric acid anodization kuj siv rau oxalic acid anodization, uas tuaj yeem siv tam sim no, Hloov pauv tam sim no, los yog superposter ntawm lwm txoj kev tam sim no thiab ncaj qha tam sim no. Raws li tib qho kev mob, zaj duab xis tau txais los ntawm lwm cov oxidation tam sim no yog softer thiab tsawg dua elastic; Kev ncaj qha oxidation ncaj qha yog nquag rau pitting corrosion, Tab sis hloov cov oxidation tam sim no tuaj yeem tiv thaiv nws. Nrog kev nce ntawm lwm cov cheebtsam tam sim no, lub corrosion tsis kam ntawm cov zaj duab xis nce, Tab sis cov xim dag taus , Cov cuab yeej xim yog qhov phem tshaj li ntawm cov sulfuric acid zaj duab xis. Cov concentration ntawm dawb oxalic acid nyob rau hauv electrolyte 3%-10%, raws li ib txwm 3%-5%. Thaum lub sij hawm oxidation txheej txheem, txhua a. h siv txog 0.13-0.14g, Thaum txhua tus a. h muaj 0.08-0.09g ntawm txhuas yaj nyob rau hauv electrolyte frakes oxalate, uas xav tau haus 5 lub sij hawm tus nqi ntawm oxalic acid. Aluminium Ions concentration hauv kev daws teeb meem yog tswj hwm hauv qab no 20g / l, thiab thaum nws muaj 30g / u txhuas, Kev daws teeb meem yuav swb. Oxalic acid electrolyte yog rhiab heev rau chloride. Thaum anodizing ntshiab txhuas lossis txhuas alloy, Cov chloride cov ntsiab lus yuav tsum tsis pub tshaj 0.04-0.02g / l, raws li tau hais lawm. Kev daws teeb meem yog qhov zoo tshaj plaws npaj nrog dej ntshiab. Raws li qhov ntsuas kub ntawm electrolyte nce, zaj duab xis ua nyias. Kom tau cov na forms, PHIC ntawm kev daws teeb meem yuav tsum tau tsa. Ncaj qha anodizing siv cov hmoov txhuas, graphite lossis stainless hlau raws li cathode, thiab nws thaj tsam piv rau anode yog nruab nrab (1:2)-(1:1). Oxalic acid yog cov kua qaub tsis muaj zog nrog cov solubility tsawg. Thaum txhuas yog oxidized, Cov khoom lag luam thiab electrolyte yuav tsum txias. Lub thickness thiab xim ntawm oxalic acid zaj duab xis sib txawv raws li cov tshuaj tiv thaiv ntawm cov alloy. Cov yeeb yaj kiab tuab ntawm ntshiab txhuas yog daj ntseg daj lossis silvery dawb, Thaum cov yeeb yaj kiab tuab ntawm cov alloy yog sib sib zog nqus li daj thiab tooj daj. Tom qab oxidation, Cov zaj duab xis txheej yog ntxuav. Yog tias nws tsis yog dyed, Nws tuaj yeem kaw nrog chav nrog lub siab ntawm 3.43 × 10 4 PA siab rau 30-60 feeb.

2. Chromic Acid Anodizing

Cov chromic acid anodizing txheej txheem yog qhia hauv rooj-4. Cov kev ntsuas siab yog yuav tsum tau nqa tawm nquag thaum lub sij hawm oxidation, thiab chromic anhydride yuav tsum tau ntxiv rau hauv lub sijhawm. Canhode ntaub ntawv rau kev siv tshuab hluav taws xob tuaj yeem ua, liv, Stainless hlau, Thiab thaj chaw zoo tshaj plaws ntawm anode rau cathode yog (5:1)-(10:1). Thaum muaj ntau cov kev siv hluav taws xob chromium li hauv kev daws, lawv tuaj yeem oxidized rau hexavalent chromium ions los ntawm electrolysis. Yog hais tias sulfate cov ntsiab lus nyob rau hauv kev daws tau ntau dua 0.5%, Anodic oxidation nyhuv yog tsis zoo. Thaum sulfate ion ntev, barium hydroxide lossis Barium carbonate tuaj yeem raug ntxiv rau ua cov barium sulfate nag lossis daus. Cov chloride cov ntsiab lus hauv kev daws yuav tsum tsis pub tshaj 0.2g / l. Thaum cov ntsiab lus chromium hauv kev daws teeb meem tshaj 70g / l, Kev daws yuav tsum tau diluted lossis hloov. Muaj ob hom chromic acid anodizing txoj kev, Anodizing txoj kev ntawm voltage lub voj voog hloov lossis lub contrant voltage anodizing txoj kev (Txoj Kev Lom Zem Chromic Acid).

3. Tawv (Tuab Film) anodizing

Hard anodizing yog txheej txheem txheej txheem rau kev sib sau cov tuab thiab tawv oxide zaj duab xis nyob rau saum npoo ntawm txhuas thiab aluminium alloys. Qhov ntau ntawm cov tuab ntawm lub zog zaj duab xis tuaj yeem ncav cuag 250μm, Lub microhardness ntawm zaj duab xis tsim rau ntawm Aluminium yog 12000-15000MPA, thiab lub alloy feem ntau yog 4000-6000mpa, uas yuav luag zoo ib yam li ntawm lub zog chrome txheej, thiab lawv tau hnav zoo heev ntawm kev teeb tsa tsawg. , Lub porosity ntawm lub zog zaj duab xis yog hais txog 20%, uas yog qis dua uas ntawm cov pa sulfuric acid zaj duab xis. Qee qhov nyuaj anodizing cov txheej txheem muaj nyob hauv Table-7.
Rooj-7 Lub Hard Anodizing Txheej Txheem

Tsis muaj. Electrolyte kub / degree tam sim no ntom /(A / DM2) Pib thiab xaus voltage / v sij hawm / min zaj duab xis thickness / μm

Pib voltage kawg voltage

1 15% sulfuric acid + 14- + 4.4 2-2.1 26 120 90 50
2 15% boric acid, 4%Na2hc6h55o7 +60-+70 0.4-0.6 100 300 240 200
3 10% sulfuric acid + 10 250W / DM2 15-25 80 60 10-130
4 15% Sulfuric acid-1- + 4.5 2-2.5 25-30 40-60 60-240 28-150
5 10% Sulfuric acid + 8- + 10 25 60 60 25-60
6 10%-15% Sulfuric acid0 -+4 5 AC 10-12 60-70
Dc 20-24 120-140
7 6%-8% Oxalic Acid Dihydrate tej yam kev mob sib txawv raws li cov alloy
8 6%-7% sulfuric acid + 3% -6% organic additive + 4.5-+18+4.5-+18 1.3-2 10 150 40 65
9 10%-20% Sulfuric acid-6- + 10 30 280 160 115-150
10 10%-15% Sulfuric acid + 8 4 20-25 60 60 55 -80
11 5.5% ua yeeb yaj duab acid, 8% Oxalic Acid Dihydrate +15-+25 3-6 45 90 100-250

4. Ploojcelax anodizing

Iav Anodizing Aluminium Thiab txhuas alloys yog anodized hauv titanium ntsev, zirconium ntsev lossis thia ntsev tov ntawm oxalic acid, citric acid thiab boric acid, Thiab hydroxide ntawm cov ntsev hlau hauv kev daws tau nkag mus rau cov pores ntawm oxide zaj duab xis, yog li ntawd qhov chaw ntawm cov khoom qhia kev kho mob nrog opaque thiab tuab-txha hniav laus lossis zoo li cov tsos nrog lub npe tshwj xeeb. Cov txheej txheem ntawm plooj (veneerain anodizing yog yeej zoo ib yam li uas ntawm cov pa roj sulfuric acid anodizing. Qhov sib txawv yog cov plooj (veneerain anodizing tau ua nyob rau ntawm DC voltage (115-125V) thiab cov ntsuas kub siab (50-60 degrees), thiab electrolyte feem ntau starred. , Feem ntau hloov kho tus nqi pH kom ua rau nws hauv cov 1.6-2.

Dyeing Kho

Cov txheej txheem tshuaj lom neeg muaj cov txheej txheem zoo ntawm cov txheej txheem yooj yim, Kev tswj yooj yim, siab efficiency, Tus nqi qis, Cov khoom lag luam qis, Pide xim gamut thiab qaim xim. Txawm li cas los, Cov khoom loj-thaj chaw yog qhov tsis sib xws xim, Yooj yim rau decolorize tom qab tu, tsis zoo sealing, lossis kev puas tsuaj puas. . Tshuaj lom neeg cov tshuaj pleev xim ntawm txhuas anodized zaj duab xis yog raws li lub peev xwm ntawm cov duab ua yeeb yaj kiab txheej los nqus cov lus nug zoo li textile fibers. Raws li ib txwm, Lub Pore txoj kab uas hla ntawm cov yeeb yaj kiab anodized yog 0.01-0.03μm, thiab zas yog cais ua ib qho molecules hauv dej, Nrog ib txoj kab uas hla ntawm 0.0015-0.0030μm. Thaum lub sij hawm xim, Cov xim yog adsorbed nyob rau saum npoo ntawm cov hws thiab sib txawv thiab accumulates nyob rau hauv lub pores. Daim nyias nyias txheej yog xim los ntawm kev ua haujlwm ionic thiab hydrogen khi, thiab cov xim yog tsau rau hauv qhov hws tom qab sib khi.

(1) Dyeing nrog organic dyes

1. Xaiv Cov
dyes muaj ntau hom organic dyes , thiab Dyes raug xaiv raws li kev siv sib txawv thiab cov khoom qib. Piv txwv li, Soluble Vat yog kim thiab muaj xim zoo xim sai, yog li lawv feem ntau siv nyob rau hauv dyeing ntawm high-qib aluminium cov khoom xws li cov mill kub kub, kaj, thiab hnov ​​lus; cawv-soluble dyes yog siv rau txhuas cov ntawv ci; Roj-Soluble Dyes yog siv rau txhuas ntawv nyiaj luam ntawv. Yaj nyob rau hauv nitrocellulose ua ntej siv nws tuaj yeem siv hauv varnishes xws li tiaj, Vinyl lossis polyamide resins, los yog hauv melamine resins thiab epoxy resins yaj nyob rau hauv ci varnishes. Tom qab luam ntawv, Ib zaj yeeb yaj kiab cob nrog DYES yog tsim nyob rau saum npoo ntawm cov tshuaj ntxuav tau pleev xim. Cov hom no siv rau dye txhuas cov khoom muaj cov kua qaub ua kua qaub, Acid enllex dyes, Acid Mordant Dyes, Ncaj Nrees Dyes, qaug zog acid dyes, dams dyes, Soluble Vat Dyes, reactive dyes, Qhov yooj yim deyes, cawv-soluble ua kom tuag, Roj-Soluble Ua, lwm. .

2. Organic Dye Xim Ua Thiab Tswj

(1) Monochrataus Dyeing: Dip cov anodized thiab ntxuav txhuas cov khoom lag luam rau hauv cov dej khov ntawm qhov ntsuas kub. Lub sijhawm dyinging nyob ntawm cov xim tob, thiab cov xim da dej ntim tuaj yeem tswj tau ntawm ib tus piv ntawm 10 rau cov khoom ntim: 1.

(2) Ntau xim xim Dyeing: Yog tias ob lossis ntau cov xim sib txawv yog dyed ntawm txhuas qhov chaw, xws li ua toj roob hauv pes, Paj thiab noog, num, tus cim, lwm., Cov txheej txheem luam ntawv feem ntau yog siv los ua kom tiav daim phaj luam ntawv. zaj) thiab tshuaj ntsuam version, Txoj Kev Luam Ntawv Direct, Xim anti-dyeing txoj kev, Ua npuas ncauj Dyeing Txoj Kev, lwm. Yuav siv tau. Qhov kev coj ua dav dav yog tias tom qab zas xim thawj xim, Siv tus qauv los sau cov yeeb yaj kiab tiv thaiv ntawm ib feem uas yuav tsum tau tawm xim, thiab tshem cov xim ntxiv, thiab tus thib ob, Thib peb thiab ntau cov xim muaj peev xwm rho tawm los ntawm kev sib piv. Qhov dyeing converration thiab cov txheej txheem ntawm ntau yam organic dyes tau qhia hauv Table-9.

Xim zas xim lub npe nkag siab G / Leme 0C PHIC nqi lub sijhawm min

Aludye Dub Dub HBK 8-10 50-60 5.5-6 15-30
MBK MBK 8-10 50-55 5.0-5.5 5-10
Dub MRL 10-12 50-60 5.0-6.0 5-30
Dub BBK 10-12 50 -60 5.0-6.0 15-30
DG DG 10 55-60 6.0-7.0 10-30
Wal 10-12 50-55 6.0-7.0 15-30
Dub mlw 8-12 50-60 4.2-4.8 5-30
Aludye liab loj liab a 2-5 50-60 5-5.5 5-10
Loj Liab D4BS <25 55-60 6.0-7.0 5-10
Ci ntsa iab liab MB 0.5-5 50-55 5.5-6.0 5-15
Liab b 2-5 55-60 5.5-6.0 5-15
D4b 2 55-60 5.5-6.0 5-10
Liab sbr <3 50-55 5.0-6.0 5-10
Daim frb liab 0.5-5 50-55 5.0-5.5 5-10
Qaim liab 3b 1- 2 50-55 5.5-6.0 5-15
Liab mbes 1-2 55-60 5.0-5.5 5-10
Loj liab MBes 1-2 55-60 5.0-5.5 5-10
Liab rbl 2 55-60 4.5-5.0 5-15
Liab PBL 2 55-60 5.0-6.0 5-10
Liab CFB 0.5-5 50-55 6.0-7.0 5-15
Liab FPR Siab 0.5-5 50-55 5.0-6.0 5-15
Liab liab deb siab 0.5-5 50-55 6.0-7.0 5-10
Paj Yeeb Bn 0.5-5 50-55 6.0-7.0 5-15
Aludye Purpe Violet Vb <2 50-55 5.5-6.0 5-10
Ntshav MFBL <5 50-55 5.5-6.0 5-10
Ntshav RVB <5 50-55 5.0-6.0 5-15
Ntshav MBB <5 50-55 5.0-6.0 5-15
Burgundy bl 50-55 5.0-5.5 5-15
Aludye Xim av Brl <2 50-60 4.5-5.0 5-15
Xim av Cfa 0.5-2 55-60 4.5-5.5 5-15
Xim av thm 0.5-5 55-60 5.0 -6.0 5-10
Brown BM 0.5-5 55-60 5.5-6.0 5-15
Xim av gl 0.5-5 55-60 5.5-6.0 5-15
Xim av kbl 1-5 55-60 5.5-6.5 5-15
Liab xim av Ag 0.1-2 50-55 6.0-7.0 5-10
Daj xim av asg 0.2-2 56-60 4.5-5.0 5-10
Aludye Ntsuab BGLN <2 50-55 5.0-5.5 5-15
Ntsuab RGS 1-9 55-60 5.0-5.5 5-15
Ntsuab 5gm <2 50-55 5.0-6.0 5-15
Ntsuab M6B <2 50-60 5.5-6.0 5-15
Ntsuab ablg <2 50-55 5.5-6.0 5-10
Ntsuab dB 0.5-2 55-60 5.0-6.0 5-10
Ntsuab A3GM 2-5 55-60 6.0- 7.0 5-15
Aludye Daj daj FD 0.5-5 50-55 5.0-5.5 5-10
Daj ya 0.2-5 50-60 5.0-5.5 5-10
Daj drl 0.5-2 55-60 6.0-6.5 5-10
Daj gr 0.2-2 50-55 5.5-6.0 5-10
Daj Dll 0.2-2 50-55 6.0-7.0 5-10
Daj 3RF 0.5-5 55-60 4.5-5.5 5-10
Tus yoov daj 0.2-2 50-55 5.0 – 5.5 5-15 Xim daj
xeeb ntxwv 0.5-2 55-60 5.5-6.5 5-10
Daj 2G 1-2 50-55 5.5-6.0 5-15
Caj daj <2 50-55 5.5-6.0 5-10
Ci daj alnw 1-2 50-55 6.0-7.0 5-10
Aludye Txiv Kab Ntxwv Kub D2Gl 0.1-2 55-60 6.0-7.0 5-15
Txiv kab ntxwv gr 0.1-2 50-55 5.5-6.5 5-10
Kub G 2 27-60 5.5-6.5 1- 10
Txiv kab ntxwv srl 2-5 50-55 5.5-6.5 1-10
Txiv kab ntxwv Bes <2 50-55 4.5-5.5 5-10
Txiv kab ntxwv gns 0.5-5 50-55 5.5-6.0 5-10
Aludye Blue Lake Xiav AB 1-2 50-55 4.5-5.0 5-15
Xiav 2LW 0.5-2 55 5.5-6.0 5-15
Xiav gbl 1-2 50-55 4.5-5.5 5-15
Xiav 2al 1-2 50-55 4.5 5-15
Navy xiav nbl 1-2 55 5.8 5-15
Turquoise xiav GB 0.5-2 55-60 5.0-6.0 5-15
Aludye Grey Grey Mbl 0.5-2 55-60 6.0-7.0 5-10
Grey Brl 0.5-1 50-55 6.0-7.0 5-10
Grey 2bl 0.1-1 55-60 5.0-6.0 5-10
Grey Abl 0.5-10 55-60 6.0-6.5 5-20
Grey GBL 0.5-2 55-60 5.5-6.0 5-10
Grey Va 0.5-1 50-55 5.0-5.5 5-10
Grey G2RC 1-10 55-60 5.0-6.0 5-15
Xim gr 1-10 50-55 5.0-5.5 5-15
GLAUL 2-5 55-60 6.0-6.5 5-10
Aludee Bronze Bronze 2LW 2-5 55-60 4.0- 5.0 5-10