| Forsinkingsprosess |
Forsinkingsprosess er en relativt sofistikert prosess som dekker følgende trinn
√ Preparing and cleaning the surface — It's essential to thoroughly clean the surface of the substrate, and alkaline detergent is a popular solution.
√ Preparing the plating solution — It is referred as the plating bath, and the bath consists of the zinc metal ionic solution og ulike kjemikalier som sur sink, alkain sink som letter pletteringsprosesser.
√ Choosing the appropriate zinc plating procedure —Larger parts are affixed to metal racks, and then placed inside the tank containing the plating bath, and the smaller are placed inside a rotating barrel, which provides a more uniform finish.
√ Introducing the electrical current — A DC current originating at the anode is introduced into the bath and flows to the substrate, and the substrate serves as the cathode. When the current complete the circuit, and the zinc ions are then deposited onto the metal surface.
√ Post-treatment — Rinsing the parts in water to remove any remaining contaminants and plating bath remnants. If additional corrosion protection is required, the application of passivates and sealers can be included in the post-treatment process. Chromate treatments are used primarily to improve corrosion resistance, improve paint or adhesive bonding properties, and provide a decorative or colored finish. The Sealer chemically bonds with the chromate film to seal and harden chromate films as well as increase their adhesion to zinc surfaces.
√ Drying- The final step is to thoroughly dry the zinc-plated parts.
| Hvilken sinkbeleggstykkelse trenger du egentlig? |
Basert på atmosfærisk korrosjonstabell nedenfor, gir vi følgende anbefaling:
Massetap overflatefinish og tykkelsesreduksjon (basert på 1 års eksponering)
En omtrentlig veiledning for levetid, gjennomsnittlig korrosjonshastighet (bare sink, ikke inkludert passivater eller toppstrøk);
Mass Loss Surface Finish and Thickness Reduction (Based Upon 1 year of Exposure) | ||||
| Korrosjonskategori | Massetap Tykkelse Reduksjon | |||
| Steel | Sink | |||
| Mass Loss (g/m²) | Thickness Reduction (μm） | Mass Loss (g/m²) | Thickness Reduction (μm） | |
| C1 | <> | <> | <> | <> |
| C2 | >10-200 | >1.3-25 | >0.7-5 | >0.1-0.7 |
| C3 | >200-400 | >25-50 | >5-15 | >0.7-2.1 |
| C4 | >400-650 | >50-80 | >15-30 | >2.1-4.2 |
| C5-I | >650-1500 | >80-200 | >30-60 | >4.2-8.4 |
| C5-M | >650-1500 | >80-200 | >30-60 | >4.2-8.4 |
Recommendation for Application | ||||
| Miljøtilstand | Egnet sted | Weathering Condition | Recommended Zinc Coating Thickness | ISO 2081 Designation |
| Tørr innendørs | Hus, kontor | Litt | 5μm | Passiver Fe/Zn5/A |
| Innendørs minimal kondens | Warehouse, Workshop | Litt | 8μm | Passiver Fe/Zn8/A |
| Covered Outdoor | Light Industry, Places Covered with Roof | Midium | 12μm | Passiver Fe/Zn12/A |
| Utendørs | Industry Zone, Offshore | Midium-alvorlig | 25μm | Passiver Fe/Zn25/A |
| Påføring av sinkbelagte deler |
Zinc plating is typically used for small fasteners, small plates, and various brackets that will be exposed in interior or mildly corrosive conditions. For use in moderate or severe environments,the materials must be chromate-conversion coated or hot dip galvanized for additional corrosion protection. Fabmann provides zinc plating service, and our experienced engineer will make sure that all the custom fabricated parts go through strict pre-treatment for sound zinc plating result, and we are serving the following industries:
√ Maskiner og heis
√ Utstyr
√ Tilbehør til kontormøbler
√ Tilhenger deler
| Hvordan foretar Fabmann inspeksjon ved sinneplettering? |
Our quality engineer focuses on following aspects to make sure our zinc plating quality is upto clients' requirement.
√ Pitting
√ Skarp kant
√ Forurensning
√ Dårlig vedheft
√ Cracking
√ Dull and hazy deposits
√ Blistering
Forsinket brakett
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Forsinket OEM stemplingsdeler
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Sink Plating Service
Forsinket stålkobling
Forsinket sveiset brakett
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