Mixed Gas Flow SO₂ H₂S NO₂ Cl₂ Corrosion Chamber

This Mixed Gas Flow Corrosion Test Chamber supports precise control of SO₂, H₂S, NO₂, and Cl₂ gases, which are commonly found in industrial pollution, exhaust emissions, and marine atmospheres. The temperature range is typically +15 °C to +80 °C, with humidity control from 30 % to 98 % RH. Gas concentration can be adjusted from 1 ppm to 200 ppm depending on test requirements, while air exchange rate is maintained at 3–5 times per hour to ensure uniform distribution. High-precision gas sensors continuously monitor concentration stability within ±10 %, ensuring consistent exposure conditions during long-term testing.

Working Principle of the Mixed Gas Flow SO₂ H₂S NO₂ Cl₂ Corrosion Chamber 

1. Precise Mixed Gas Control System: The chamber uses mass flow controllers to accurately regulate SO₂, H₂S, NO₂, and Cl₂ gas concentrations. Each gas is independently controlled and mixed before entering the chamber, ensuring stable and uniform gas distribution throughout the test space.

2. Temperature and Humidity Control System: A PID intelligent control system maintains stable environmental conditions with temperature fluctuation within ±0.5 °C and humidity deviation within ±2.5 % RH. Heating, cooling, and humidification systems work together to simulate real industrial atmospheric conditions.

3. Uniform Airflow Circulation System: A built-in centrifugal fan ensures continuous airflow circulation, eliminating dead zones and ensuring that all samples are exposed evenly to corrosive gases.

4. Corrosion-Resistant Chamber Structure: The interior is made of SUS304 stainless steel with optional anti-corrosion coating to withstand long-term exposure to acidic gases. Gas pipelines are specially treated to prevent corrosion and leakage.

5. Safety and Protection System: The chamber is equipped with gas leakage detection, automatic exhaust neutralization, over-temperature protection, and emergency shutdown systems. Optional gas neutralization units ensure safe discharge after testing.

Operating Parameters

Testing Standards of the Mixed Gas Flow SO₂ H₂S NO₂ Cl₂ Corrosion Chamber

Mixed Gas Flow SO₂ H₂S NO₂ Cl₂ Corrosion Chamber complies with IEC 60068-2-42, IEC 60068-2-43, IEC 60068-2-60, ISO 9227, ISO 16750, ASTM B845, ASTM B827, MIL-STD-810, and other series for accelerated corrosion testing and reliability evaluation. Typical conditions include 25 °C–40 °C, 70%–95% RH, SO₂ 0.5–30 ppm, H₂S 0.1–10 ppm, NO₂ 10–200 ppm, and Cl₂ 0.5–5 ppm, with 3–5 air changes per hour. Test duration ranges from 24 to 1000 hours, with evaluation of corrosion rate, oxidation, coating failure, and contact resistance change.

FAQs on the Mixed Gas Flow SO₂ H₂S NO₂ Cl₂ Corrosion Chamber

Q1: What is the main purpose of a Mixed Gas Corrosion Chamber?

It is used to simulate real industrial atmospheric corrosion environments containing SO₂, H₂S, NO₂, and Cl₂, helping evaluate the long-term durability and reliability of metals, coatings, and electronic components under accelerated conditions.

Q2: Can the gas concentration be controlled accurately during testing?

Yes. The system uses high-precision mass flow controllers and gas sensors to independently regulate each gas, ensuring stable and accurate concentrations throughout the entire test process.

Q3: What safety protections are included for toxic gas testing?

The chamber is equipped with gas leakage detection, automatic exhaust treatment, over-temperature protection, and emergency shutdown systems to ensure safe operation during corrosive and hazardous gas testing.