Equipment Description:
Automotive spring pretreatment equipment is the core equipment for the surface pretreatment of springs. Through processes such as degreasing, rust removal, phosphating and passivation , it enhances the corrosion resistance and coating adhesion of springs. It is suitable for the mass production of metal springs such as suspension springs and clutch springs.
I. Standard Process Flow
A[Feeding] --> B(Alkaline spray degreasing) --> C(Pure water rinsing) --> D(Surface adjustment treatment)
D --> E(Phosphating reaction) --> F(Passivation and sealing) --> G(hot air drying) --> H[Quality inspection and material cutting]
Ii. Key Technical Indicators
Processing efficiency : 200-800 pieces per hour (depending on spring size)
Phosphating film quality : Film weight 2-4g/m², salt spray test ≥120h no rust
Energy consumption control : Equipped with waste heat recovery system, energy saving rate ≥25%
Environmental protection standard : The recycling rate of wastewater is ≥85%, which meets the discharge requirements of GB 8978
Iii. Application Scenarios
Mass production line for passenger car suspension springs
Continuous production line for commercial vehicle leaf springs
High-strength steel wire springs (such as valve springs) are precisely processed
Customized pretreatment for special-shaped springs (torsion bars/coil springs)
Iv. Suggestions for Equipment Selection
Material matching : For high carbon steel springs, shot blasting + phosphating double process is recommended; for stainless steel springs, chemical polishing is preferred
Capacity matching : Medium and small batch (< 50,000 pieces/month) Compact equipment recommended (floor area < 50㎡)
Upgrade option : Optional AI vision inspection module (surface defect recognition rate ≥99.7%)
This equipment, through precise process control, can increase the fatigue life of springs by 15% to 20%, and is particularly suitable for the strict process requirements of lightweight springs in new energy vehicles. It is recommended to calibrate the PH/ conductivity sensor regularly and monitor the free acidity (FA value) of the phosphating solution to ensure the stability of the treatment.
Main structures and components:
Core component module
| Module name | Function Description |
| Spray cleaning system | High-pressure alkaline solution spray to remove surface oil stains (working pressure: 0.3-0.5MPa, temperature: 50-70℃) |
| Shot blasting rust removal system | High-speed impact surface of steel shot, Sa2.5 grade cleanliness (controlled by variable frequency motor, dust removal efficiency ≥99%) |
| Phosphating tank | Zinc-based phosphating solution generates a 5-10μm microcrystalline layer, enhancing surface activity (PH value control range: 2.8-3.5) |
| Closed-loop drying system | Hot air circulation drying (temperature accuracy ±2℃, energy consumption 30% lower than traditional equipment) |
| Intelligent control system | PLC+ touch screen to achieve parameter monitoring (supporting formula storage, self-diagnosis of faults, and energy consumption statistics) |
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.
|
|
Continuous Production Line for Commercial Vehicle Leaf Springs Chemical Cleaning Line Images
|
