Equipment description:

Aluminum alloy special design points
‌1, ‌ oxidation control ‌ phosphating solution pH value 4.5-5.5, film forming time 3-5min (zinc nano ceramic film)
2, ‌ electrostatic spraying optimization ‌ spray gun voltage 40-70kV (adaptive aluminum surface compensation)
Powder charging efficiency ≥85%, Faraday effect suppression technology
3, ‌ safety enhancement ‌ powder concentration monitoring +CO₂ automatic fire extinguishing (Ex ia IIB T4 explosion-proof certification) grounding resistance ≤1Ω, electrostatic leakage rate > 0.1mJ/ms
According to the requirements of GB 6514-202X Painting Operation Safety Regulations: ‌ space matching ‌ : cross-sectional area of dusting chamber ≥ 1.5 times of workpiece projection area, ‌ production capacity calculation ‌ : backward linear speed according to curing furnace volume ×0.7 (loading factor)
‌ Environmental compliance ‌ : Configure RTO incineration or activated carbon adsorption.

Main structure and components:

Workpiece feeding → degreasing (waste water treatment) → washing → passivation (waste water treatment) → drying → electrostatic powder spraying (powder recovery) → curing → cooling → quality inspection.
Key parts technical details ‌‌ electrostatic spray gun ‌‌ rotary cup ‌ : 60-100kV high pressure, suitable for complex surfaces (such as aluminum alloy wheels) ‌ friction ‌ : no corona discharge design, reduce the risk of aluminum powder explosion ‌ intelligent feedback ‌ : Real-time monitoring powder charging efficiency (≥82%) ‌ passivation tank ‌ Chromium-free passivation solution (zirconium-titanium system), pH 4.0-4.8, temperature 35-40℃
Film thickness 0.3-0.8μm, salt spray test ≥500h (ASTM B117) ‌ curing furnace ‌ zone temperature control: preheating area (150±5℃) → curing area (200±3℃) → cooling area Hot air circulation fan: 304 stainless steel, wind speed 0.5-1.2m/s adjustable ‌ suspension conveyor chain ‌ double chain redundancy design, tensile strength ≥5000N insulation hook surface resistance ≥1×10¹³Ω, to prevent electrostatic breakdown coating.

Features:

1. High cost performance Based on the customer's product positioning and development strategy, based on economic benefits, to achieve the best cost performance.

2.Advanced equipment design concept of excellence, high degree of automation of industrial equipment, show modern advanced enterprise style.

3.High adaptability to meet the current production requirements, and reserve space for development, considering the later production increase and quality improvement needs.

4.Quality standards strictly follow the IS0900 quality management system, and every small link of the entire equipment installation is strictly checked.