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Professional Zinc Alloy Surface Finishing Solutions

Anodizing — Technician Levels

Anodizing — Technician Levels

Pick your level to see exactly which pages you should read. Each level below carries its own article library.

Anodizing: which level are you?Four levels - the work you do on this equipment, and the pages you should read.etchanodizedyeJunior1-3 yearsetchanodizedyeIntermediate3-5 yearsetchanodizedyeSenior5-8 yearsetchanodizedyeManagementsupervisor / owner

Process route: Degrease & Etch → Desmut → Anodize → Colour Dye → Seal & Dry

5-25 um
Film
1-5 g/L
Dye
> 98%
Seal pass

What each level covers

Junior · 1-3 years
Start here if you are 1-3 years in: the standard steps, the daily checks and the values you must not skip.
Inside: 5-step flow walk-through · daily check list · basic parameter values · simple do / do-not rules
Anodizing → Junior pages
Intermediate · 3-5 years
For 3-5 years: diagnose defects, read real data (titration, hull cell, salt spray, film gauge) and set the working windows.
Inside: defect cause & cure · parameter windows · data reading · option comparisons
Anodizing → Intermediate pages
Senior · 5-8 years
For 5-8 years: how the steps before and after this one change your result - root cause, cross-process reasoning, deep analysis.
Inside: root-cause tracing · interaction with pre-treatment / post-finish · failure analysis · boundary conditions
Anodizing → Senior pages
Management · supervisor / owner
For the supervisor / owner: cost per piece, capacity, staffing, emergency recovery and keeping customers happy.
Inside: cost & payback models · capacity and staffing · KPI and governance · claims & recovery plans
Anodizing → Management pages

Anodizing on the shop floor

Anodizing LineINTERMEDIATEAnodizing - process boardOperatorEtch 1-3 min. Longer etch gives a matte look you cannotpolish out.Chemist1.2-1.8 A/dm2 builds 0.4-0.7 um per minute - log thefilm, not the clock.QCSeal quality decides colour fastness - run the dye-bleedtest.ManagerSealing is energy-heavy: 95-100 C for 20-30 min on everyload.STEP 1Degrease & EtchNaOH 40-60 g/L1-3 min50-60 C1STEP 2DesmutHNO3 20-30%0.5-2 minRoom temp2STEP 3Anodize180-200 g/L H2SO41.2-1.8 A/dm215-30 min3STEP 4Colour DyeDye 1-5 g/LpH 5-65-15 min4STEP 5Seal & DryNi-free seal95-100 C20-30 min5!Nickel-free seal is standard for jewellery - check EN 1811 release limits.COMMON MISTAKES vs WHAT WORKSfrom shop-floor auditsxLonger etch for a deeper colourv1-3 min etch; longer gives a matte lookxJudge film thickness by colourvLog um per minute at 1.2-1.8 A/dm2xShorten sealing to raise outputv95-100 C for 20-30 min; run the dye-bleed test5-25 umFilm1-5 g/LDye> 98%Seal passCASE FROM THE LINECase: colour complaints ended after sealing time was logged for every load.QLQ Surface Treatment | steps, roles, checkpoints, mistakes and a real case

Related: Process Overview · All trades · Process Selection