walk in Salt Spray Test Chamber
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TheLarge-Scale Composite Salt Spray Test Chamberis a professional environmental simulation instrument designed to replicate complex corrosion conditions, including high-salt, high-humidity, and temperature-humidity cycles. You can use it to test full vehicles, large components, or batch samples for corrosion resistance, providing reliable data for product development, quality control, and durability verification in automotive, aerospace, and defense industries.
Applications
1. Automotive Industry
Testing the corrosion resistance of complete vehicles, bodies, chassis, and new energy vehicle battery packs in coastal and frigid regions is a critical validation step for export model development.
2. Aerospace and Defense
Evaluating the reliability of aircraft components and military equipment under high salt fog and extreme temperature/humidity conditions ensures service life.
3. Large Structural Components
Simulating harsh environments like chemical plants and marine atmospheres to validate long-term corrosion resistance for items such as corrosion-resistant pipelines, photovoltaic modules, and ship components.
Standards
GMW 14872 Simulating the Corrosion Resistance of Automotive Components in Alternating Salt Spray, Humidity, and Dry Environments
GJB 150.11A Salt Spray Testing for Military Equipment
GB/T 10125-2021 Artificial Atmosphere Corrosion Testing—Salt Spray Test
ASTM B117 Simulating Complex Corrosion Environments (Marine, Chemical, etc.) to Evaluate Material or Coating Corrosion Resistance
ISO 9227:2022 Corrosion tests under artificial climatic conditions—Salt spray test
ASTM G85 Standard Test Method for Modified Salt Spray Test
GB/T 2423.17 Salt spray test for electrical and electronic products
GB/T 2423.18 Combined salt spray test
Features
1. Composite Environmental Simulation
Integrates multiple environmental stresses including salt spray (neutral NSS, acetic acid AASS, copper-accelerated CASS modes), temperature-humidity cycling (-40°C to 150°C, humidity 30% to 98% RH), and drying/condensation cycles. Simulates real-world corrosion scenarios such as marine atmospheres and industrial pollution zones.
2. Large-Scale Testing Capacity
Chamber dimensions typically range from 10–18m (L) × 3–5m (W) × 3–4m (H), accommodating large components like complete vehicles, body-in-white, and battery packs. Supports walk-through or lift platform designs for easy sample loading/unloading.
3. High-Precision Control and Intelligent Operation
Salt deposition is precisely controlled at 1–2 mL/80 cm²/h, with temperature fluctuations ≤±0.5°C and humidity deviation ≤±5% RH.
Equipped with a touchscreen programmable system supporting multi-mode cyclic testing (e.g., salt spray-damp heat-dry cycles), delivering high automation.
4. Corrosion-Resistant Structural Design
Interior walls utilize corrosion-resistant materials like PVC, FRP, or PP. Exterior shells are constructed from stainless steel or carbon steel with anti-corrosion coatings. Select models feature double-walled insulation to minimize heat loss.
Parameters
| Item | Specifications | Features |
|---|---|---|
| Working Chamber Dimensions | 10–18 m (L) × 3–5 m (W) × 3–4 m (H) | Customizable, suitable for whole vehicles or large components |
| Salt Spray Modes | Switchable between NSS/ASS/CASS modes | Meets different corrosion intensity requirements |
| Temperature Range | -40°C ~ 150°C (higher in some expanded models) | Supports combined temperature-humidity and salt spray tests |
| Salt Spray Settling Rate | 1–2 mL/80 cm²/h, digitally displayed and automatically adjustable | Complies with GB/T 10125. ASTM B117. and other standards |
| Safety Protection | Over-temperature protection, water shortage alarm, leakage protection | Prevents sample damage |
Accessories
Touchscreen programmable control panel
Salt spray generator and dosing system
Temperature and humidity sensors
Automated data logging and monitoring software
Sample racks, lifting platforms, and access doors
Test Procedures
1. Equipment Preparation
Verify chamber structural integrity and safety interlocks.
Check water supply, salt solution concentration, and salt spray generator operation.
Arrange samples securely on racks or lifting platforms.
2. Parameter Configuration
Select the desired salt spray mode (NSS/ASS/CASS).
Set temperature and humidity ranges, along with cycle duration.
Activate automated monitoring and data acquisition.
3. Test Execution
Start the chamber and monitor temperature, humidity, and salt spray deposition rates.
Perform cyclic testing according to programmed schedules.
Ensure safety alarms are active throughout the test.
4. Test Completion
Gradually return chamber to ambient conditions.
Remove samples carefully and analyze corrosion performance data.
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