Automotive Chemical Cleaning Line with Salt Spray Resistance

Equipment Description:

I. Typical process flow

1. Pretreatment stage: degreasing → pickling → water washing, removing the oxide layer and impurities on the workpiece surface.
2. Surface treatment stage: electroplating/passivation/oxidation: the robot grabs the workpiece and immerses it in the corresponding tank, and the coating thickness (5-30μm) and reaction time (30-300 seconds) are controlled by the program.
3. Post-processing stage: three-stage countercurrent water washing → centrifugal drying → hot air drying (60-80℃) → automatic unloading.

2. Technical features

1.Full process closure: reduce the risk of chemical exposure, and reduce VOCs emissions by more than 70%.
2. Flexible production: support multi-process switching (such as galvanizing, nickel plating, passivation), and the changeover time is ≤15 minutes.
3. Data traceability: real-time storage of process parameters and production data, supporting quality traceability and process optimization.

3. Application scenarios

Main structures and components:

I. Core modules ‌

‌1. Closed processing unit ‌
‌Tanker structure ‌: Made of PP/PVC or corrosion-resistant stainless steel, the fully enclosed design prevents the escape of chemical gases, with built-in electroplating tank, passivation tank, pickling tank, etc.
‌Liquid circulation system ‌: Equipped with a magnetic pump and a 5μm precision filter to achieve closed-loop circulation of plating liquid/passivation liquid, with a utilization rate of ≥95%.
‌2. Automated conveying system ‌
‌Gantry track ‌: Equipped with a servo-driven manipulator (6-axis linkage), positioning accuracy ≤±0.5mm, supporting precise transportation of hangers or rollers.
‌Chain transmission device ‌: Fully enclosed track combined with chain or magnetic suspension drive, adjustable transportation speed (1-3m/min), suitable for multi-station collaborative operations.
‌3. Intelligent control module ‌
‌PLC+HMI control ‌: Integrated Siemens or Mitsubishi PLC, preset process parameters (temperature, pH value, time), support real-time monitoring, fault alarm and data storage.
‌Visual inspection system‌: Industrial cameras monitor the state of the tank liquid and the surface quality of the workpiece, and automatically adjust the process parameters.
‌4. Environmental protection treatment system‌ ‌Waste gas purification device‌: Acid mist collection hood + alkali liquid spray tower + activated carbon adsorption, treat harmful gases such as NOx and HCl, and the purification efficiency is ≥95%. ‌Wastewater reuse device‌: RO reverse osmosis technology is used to achieve zero discharge of wastewater or low-concentration discharge that meets the standards.

‌II. Auxiliary equipment‌ ‌

1. Pretreatment module‌ ‌Degreasing tank‌: Alkaline solution ultrasonic cleaning removes surface oil. ‌Pickling tank‌: Hydrochloric acid or sulfuric acid solution removes the oxide layer. ‌2. Post-processing module‌ ‌Centrifugal dryer‌: Speed 800-1200r/min, quickly remove residual liquid. ‌Hot air drying oven‌: Temperature 60-80℃, ensure the surface of the workpiece is dry. ‌3. Hanger and roller‌
‌Drum design‌: hexagonal prism structure, made of PP or titanium alloy, pore size 1-3mm, suitable for small metal parts (recommended Φ50mm or less).

‌III. Technical features‌

‌Fully enclosed environmental protection‌: reduce chemical exposure, VOCs emissions reduced by more than 70%.
‌Flexible production‌: support multi-process switching (such as galvanizing, passivation, oxidation), changeover time ≤15 minutes.
‌Data traceability‌: real-time recording of process parameters and production data, support quality traceability and optimization.

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.