Professional Zinc Alloy Surface Finishing Solutions
الألوان الخاصة
Speical color
1. Process Flow Chart
2. Process Video
3. Process Details
After preprocessing and nickel plating, the next step is:
1. Oil removal electrolysis
2. Three times Cleaning Tank
Remove residual liquid on the workpiece surface.
3. Dull nickel for 1 minute
Removing the brightness of nickel
4. Three times Cleaning Tank
Remove residual liquid on the workpiece surface.
5. Chromium plating
6. Two-grid recovery tank
7. Six times Cleaning Tank
Remove residual liquid on the workpiece surface.
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Workshop Planning Data
Speical color — Data Zinc Alloy Finishing Managers Need
The rack plating line handles larger zinc alloy parts, sliders on frames and parts requiring precise current distribution — high-end finishes with zero contact marks and excellent throwing power.
800 m²Workshop Area
26 peopleTeam Size
330 kWInstalled Power
300-600k pcs/dayDaily Output (10 h)
Quality Inspection & Control
| Check item | Method | Acceptance standard |
|---|---|---|
| Coating thickness | X-ray / coulometric | Cu 5-12 μm, Ni 5-15 μm per spec |
| Adhesion | Bend + thermal shock | No blister at 150 °C × 30 min |
| Color & gloss | Colorimeter / gloss meter | ΔE ≤ 1.0, gloss per customer card |
| Contact marks | Visual 10× | Zero rack contact marks on A-surface |
| Salt spray | NSS chamber | 12-96 h per spec |
| Throwing power | Cross-section micro | Minimum:maximum thickness ≥ 1:1.6 |
Workshop Layout & Floor Area
| Zone | Area |
|---|---|
| Rack line (16-20 tanks) | 320 m² |
| Rack loading / unloading | 90 m² |
| Rectifier & control room | 50 m² |
| QA lab + microscope | 60 m² |
| Rack maintenance | 60 m² |
| Chemical store | 60 m² |
| Waste treatment | 120 m² |
| Utility & lockers | 40 m² |
| Total workshop | 800 m² |
Manpower & Shift Plan
| Role | Headcount |
|---|---|
| Rack loaders / operators | 12 |
| Chemical technicians | 3 |
| QC inspectors | 3 |
| Rack maintenance | 2 |
| Wastewater operator | 1 |
| Supervisor | 1 |
| Maintenance / electrician | 2 |
| Logistics | 2 |
| Total (2 shifts × 10 h) | 26 |
Power & Utility Demand
| Equipment | Demand |
|---|---|
| Rectifiers 0-15 V × 1000-3000 A | 120 kW |
| Tank heating / cooling | 70 kW |
| Hoist / transporter system | 30 kW |
| Pumps / filters / dosing | 38 kW |
| Exhaust + scrubber | 25 kW |
| Dryer / oven | 22 kW |
| Wastewater treatment | 20 kW |
| Lighting & auxiliary | 5 kW |
| Installed total | 330 kW |
| Typical running load | ≈ 260 kW |
Production Flow Chart
PretreatmentHand / barrel polish, degrease
Rack LoadingLoad parts on plated copper racks
Copper Strike & BuildAlkaline Cu → acid Cu
Nickel / Color PlatingBright Ni, gold, gun, black etc.
Rinse ChainRecovery → DI rinse
Dry / Unload / QCOven dry, unload, inspect, pack
Daily Capacity — 10-Hour Operating Day
| Parameter | Value |
|---|---|
| Cycle per flight bar | 35-60 min |
| Parts per flight bar | 3,000-8,000 |
| Flight bars per 10 h day | 14-18 |
| Daily output | 300,000-600,000 pcs |
| Monthly output (26 days) | 8-15 million pcs |
Output Value Estimate
| Parameter | Value |
|---|---|
| Plating fee per piece | USD 0.015-0.04 |
| Daily output value (10 h) | USD 8,000-18,000 |
| Monthly output value | USD 210,000-470,000 |
| Annual output value | USD 2,500,000-5,600,000 |
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