Test Purpose
This Combined Salt Spray Test Chamber is designed to simulate the environment in which a battery pack or system is exposed to salt spray with specific temperature, pH value, and salinity for a certain duration, to evaluate whether leakage, housing rupture, fire, or explosion may occur. These observed behaviors serve as a crucial basis for assessing the safety performance of the battery pack/system.
Additionally, the Combined Salt Spray Test Chamber for Battery can be used to assess the corrosion resistance of various materials and surface treatments, such as electroplating, anodizing, coating, and anti-rust oil.
The walk-in chamber is engineered with high explosion-proof performance and a rapid fire-extinguishing design to ensure test safety.
Test Procedures
- The test object is a battery pack or system.
- Conduct four test cycles.
- Prepare the salt solution using sodium chloride (chemically pure or analytically pure) and distilled or deionized water.
The concentration should be (5 ± 0.1)% (mass fraction).
At (20 ± 2)°C, the pH value should be 6.5–7.2. - Place the test object into the salt spray chamber and spray salt mist at 15°C–35°C for 2 hours.
After spraying, transfer the object to a damp-heat chamber for 20–22 hours, at (40 ± 2)°C and (90 ± 3)% RH, forming one cycle.
Repeat this cycle three more times, then store the object for 3 days under standard atmospheric conditions (23 ± 2 °C, 45–55% RH).
This completes one test period. Perform four test periods in total. - Test Requirements: The battery pack or system must show no leakage, housing rupture, fire, or explosion.
Specifications
| Product Name | Combined Salt Spray Test Chamber for Battery |
| Internal Dimensions | W2000 * D3000 * H2000 mm |
| External Dimensions | W2300 * D5200 * H3000 mm (subject to actual design) |
| Load Capacity | 1000 kg (customizable) |
| Temperature Range | 0°C to +85°C |
| Temperature Fluctuation | ±0.5°C |
| Temperature Deviation | ±2°C |
| Salt Spray Output | 1–2 mL / 80 cm² / 1 hr (collected for 16 hr, average value taken) |
| Spray Pressure | 1.00 ± 0.01 kgf/cm² |
| Resolution | Temperature: 0.01°C / Humidity: 0.01% RH |
| Humidity Range | 20%–98% RH |
| Humidity Fluctuation | ±3% RH |
| Solution pH (chemical) | Neutral: 6.0–7.0 / Acidic: 3.0–3.1 |
| Spray Solution pH | Neutral: 6.5–7.2 / Acidic: 3.1–3.3 |
| Time Range | 1 s – 9999 h (programmable) |
| Control System | 7-inch TFT full-color LCD touch screen |
| Internal Chamber Material | SUS316 stainless steel with Teflon coating (acid & alkali resistant) |
| External Chamber Material | Cold-rolled steel plate with anti-corrosion paint |
| Cooling Method | Air-cooled |
| Total Weight | Approx. 7 tons |
| Power Supply | AC220V/50Hz, or AC110V/60Hz |
| Safety Features | Explosion relief system, spray extinguishing system, video monitoring system, smoke alarm system, and lighting system. |
