and Environmentally Friendly Electroplating Oxidation Production Line for Low

Product Specification

Equipment Description:

I. Process flow

1. Pretreatment process:
Degreasing → Alkaline etching → Neutralization → Multi-stage water washing.
2. Oxidation treatment:
Workpiece hanging → Immersed in electrolytic tank (sulfuric acid solution, current density 1-3A/dm², time 30-60 minutes) → Pure water washing.
3. Post-treatment:
Dyeing → Sealing → Drying → Quality inspection.

II. Technical parameters
Processing capacity: Single line daily processing capacity ≤500kg (based on 8 hours).
Oxidation film performance: Thickness range 5-25μm, hardness ≥300HV.
Dyeing uniformity meets ASTM B137 standard.
Energy consumption: DC power consumption ≤600kWh/ton, steam consumption ≤1.2 tons/ton.

III. Application scenarios
R&D test: New product proofing, small batch trial production. ‌Multi-specification production‌: Supports mixed processing of aluminum parts of different sizes and shapes (such as 3C accessories, auto parts).
‌High value-added products‌: Decorative oxidation (such as colored aluminum profiles) and functional oxidation (wear-resistant parts).
‌IV. Selection recommendations‌ ‌Small enterprises/laboratories‌: Give priority to semi-automatic or manual lines to reduce initial investment costs.
‌Multi-process compatibility‌: Choose a U-shaped layout that can expand the number of tanks for easy later upgrades.
‌Environmental protection requirements‌: Configure basic wastewater neutralization devices (pH adjustment) and exhaust gas collection systems.

Main structures and components:

I. Pretreatment unit ‌
‌1. Cleaning tank group ‌
‌Degreasing tank ‌: Alkaline solution (NaOH concentration 50-80g/L) removes oil stains on the surface of aluminum, and the tank body is made of corrosion-resistant PP material. ‌Alkali etching tank ‌: NaOH solution (50-100g/L) corrodes the surface of the aluminum substrate, eliminates the oxide layer and microscopic defects, and the tank is equipped with a circulating filtration system. ‌Neutralization tank ‌: Nitric acid/sulfuric acid mixture neutralizes residual alkali solution and activates the surface. The tank body and degreasing tank share the same material. ‌Multi-stage water washing tank ‌: City water + pure water cleaning to ensure that there is no residue on the surface of the workpiece. ‌2. Auxiliary equipment ‌
‌Manual lifting device ‌: Track-type crane or manual hoist, support cross-tank transfer of workpieces. ‌

II. Anodizing unit ‌
1.. Electrolytic tank ‌
‌Tannel body material ‌: Acid-resistant PP/PVC material, single tank volume ≤2000L, suitable for small batch production. ‌ ‌Electrolyte‌: sulfuric acid solution (concentration 150-200g/L), temperature control range 15-22℃ (±2℃), equipped with titanium alloy heating/cooling tube.
‌Manual hanger system‌: titanium alloy or aluminum alloy hanger, adjustable fixture design, suitable for workpieces of different sizes.
‌2. Power supply system‌ ‌DC power supply‌: voltage 0-24V adjustable, current density 1-3A/dm², generating 5-25μm oxide film.

‌III. Post-processing unit‌ ‌

1. Dyeing tank‌ constant temperature control (40-60℃), support organic dye/inorganic salt dyeing, tank material is consistent with electrolytic tank.
‌2. Sealing tank‌ high temperature steam (95-100℃) or nickel salt sealing process to improve the corrosion resistance of the oxide film.
‌3. Drying furnace‌ hot air circulation device (80-120℃), segmented temperature control to prevent the oxide film from cracking.

IV. Basic control system‌
‌1. Operation panel‌Simple PLC + touch screen (optional), supports manual adjustment of current, temperature and other parameters.
‌2. Tank liquid monitoring‌Manual detection tools (such as pH meter, concentration meter), regular maintenance of tank liquid parameters (Al³+ content ≤ 20g/L).

V. Equipment layout features‌
‌U-shaped arrangement‌: The tank body is arranged in a U-shaped manner according to the process flow to reduce the manual handling distance.
‌Modular design‌: The number of tank bodies can be expanded to meet different production requirements (such as adding multi-stage washing tanks or dyeing tanks).

Features:

1.High cost performance: Based on the customer's product positioning and development strategy, and with economic affordability as the foundation, we achieve the best cost performance.
2.The advanced and meticulous design concept of the equipment, along with the highly automated industrial equipment, showcases the image of a modern and advanced enterprise.
3. It has high adaptability, meeting the current production requirements and reserving room for development, taking into account the needs of increased production and improved quality in the future.
4.Quality compliance strictly adheres to the ISO900 quality management system, with every minute detail of the entire equipment installation being strictly controlled.