Low concentration ozone aging test chamber

Low concentration ozone aging testboxProduct Description

The low content of ozone in the atmosphere is the main factor causing rubber cracking. The ozone aging chamber simulates and strengthens the ozone conditions in the atmosphere, studies the effect of ozone on rubber, and quickly identifies and evaluates the anti ozone aging performance of rubber and the protective effectiveness of anti ozone agents. Effective anti-aging measures are then taken to improve the service life of rubber products

Low concentration ozone aging test chamberreference standard

GB/T 13642-2015 Rubber, vulcanized - Ozone aging resistance test - Dynamic tensile test method;

GB/T 7762-2014 Rubber, vulcanized or thermoplastic - Static tensile test method for resistance to ozone cracking;

Low concentration ozone aging test chamberModel

1. Model: QL-100C Studio Size: 450 × 450 × 550mm Dimensions: Approximately 1000 × 950 × 1800mm

2. Model: QL-250C Studio size: 600 × 600 × 700mm External dimensions approximately: 1150 × 1100 × 1950mm

3. Model: QL-500C Studio size: 700 × 800 × 900mm External dimensions approximately: 1250 × 1300 × 2300mm

4. Model: QL-010C Studio Size: 1000 × 1000 × 1000mm Dimensions: Approximately 1550 × 1500 × 2400mm

Low concentration ozone aging test chamberMain technical parameters

1temperature range：20～65℃

2Temperature Uniformity：≤2℃

3temperature fluctuation：±0.5℃

4temperature deviation：≤±2℃

5humidity range：30%～98% R.H

6Humidity deviation：+2%/-3% R.H (± 5% R.H, humidity below 75% R.H)

7heating rate：0.7-1.0℃/min

8Time setting range：0-9999 hours

9ozone concentration：20～500PPHM

10Ozone concentration deviation：± 10% (± 5PPHM when the concentration is below 50PPHM)

11Sample rack speed：(20-25) mm/S (adjustable)

12Fixture elongation rate：0～100%

Low concentration ozone aging test chamberIntroduction to Structural Design

1thisLow concentration ozone aging test chamberSelect high-quality materials and use current domestic materialsProcessing equipment is used to process and shape, and the surface of the shell is treated with spray coating for a beautiful and smooth appearance. The color matching is coordinated and the lines are smooth. The inner liner is made of imported high-quality stainless steel plate and adopts a * air duct structure. The indoor sample racks, fixtures, conduits, and other accessories are made of materials such as stainless steel that are not easily decomposed by ozone and affect ozone concentration.

2The sample holder can rotate 360 degrees with adjustable speed, and can stretch up and down while rotating. The frequency is adjustable at 0.5HZ.

3The observation window is made of multi-layer insulated tempered glass with a laminated conductive film on the inside, which has the advantages of heat insulation and is not prone to steam frosting.

4The interlayer between the inner container and the outer shell of the equipment is filled with high-density glass fiber cotton to ensure that the box will not experience excessive temperature fluctuations due to temperature conduction, and to maintain a constant temperature of the sample during the testing process.

5The equipment uses a long axis fan motor for stirring and a stainless steel multi blade impeller that is resistant to high and low temperatures to achieve strong convection and vertical diffusion circulation, ensuring uniform and stable temperature in the laboratory.

6A double-layer high-temperature resistant high tensile sealing strip is used between the door and the box to ensure the sealing of the testing area. Using non reactive door handles makes operation easier. High quality casters are installed at the bottom of the machine, making it easy to move and fix the machine.

7Static tensile test

The standard stipulates that the two ends of the sample should be clamped on a fixture, and a tensile elongation of 20% should be selected. The fixture should be installed on a rotating sample holder with a rotation speed between (20-25) mm/S. The test should be conducted at a temperature of (40 ± 2) ℃ and a specified ozone concentration. Check the cracking condition of the sample after the specified time. The general selection of ozone concentration is (50 ± 5) × 10-8.

8Dynamic tensile test

The standard stipulates that the sample fixture can automatically stretch and reset the sample, with a stretching frequency of 0.5 ± 0.025Hz. The two ends of the sample are clamped on the fixture, and the sample is cyclically stretched from 0 to high elongation. The fixture is installed on a rotating sample holder, with a sample holder speed between (20-25) mm/S. At a temperature of (40 ± 2) ℃ and a specified ozone concentration, the fixture is cyclically stretched and reset and rotated with the sample holder for testing. Check the cracking condition of the sample after the specified time. The general selection of ozone concentration is (50 ± 5) × 10-8.

Low concentration ozone aging test chambercontrol system

17-inch color LCD touch screen controller (for setting, controlling temperature, humidity, and concentration)

2Temperature sensor: PT100 platinum resistor;

3Control mode: thermal balance temperature regulation mode;

4It has the function of automatic calculation, which can reduce the inconvenience caused by manual setting.

Low concentration ozone aging test chamberozone concentration

1Ozone concentration detection uses an imported ultraviolet analyzer from the United States, with a detection range from 0 to 100 ppm and an accuracy of 0.002 ppm (2 ppb) or 2% of the reading.

2Measurement based on UV absorption method

3Low power consumption, battery powered

4Real time internal data recording

5Car mounted microprocessor with interactive menu, including 10 second, 1-minute, 5-minute, and 1-hour data averaging options

6Output time, date, ozone concentration, internal temperature, and pressure through USB and RS232

7Analog output (0-2.5V and 4-20mA), based on the ozone concentration unit selected by the customer

8Dual relay control (e.g. controlling ozone source or turning on and off alarm lights)

9The ozone generator adopts a medium frequency high voltage discharge method, which stabilizes the concentration of ozone produced due to the electrode not producing corona overheating, and does not decrease with working time or gas flow rate. No vulnerable components, maintenance free operation, it is a long-life type. Multiple groups can be used in parallel to meet design requirements.

Low concentration ozone aging test chamberHeating and humidification system

1Heating adopts far-infrared nickel chromium alloy high-speed heating electric wire;

2Equipped with automatic water level compensation and water shortage alarm system;

3Humidification adopts far-infrared stainless steel high-speed heating electric heating tube;

4The temperature and humidity control adopts P.I.D+S.S.R, and the system is coordinated and controlled in the same channel;

5The output power of temperature and humidity control is calculated by a microcomputer to achieve high-precision and high-efficiency electricity efficiency.

Low concentration ozone aging test chamberrefrigeration system

1Compressor: Fully enclosed French Taikang;

2Refrigeration method: mechanical refrigeration;

3Condensation method: forced air cooling;

4Refrigerant: environmentally friendly;

5The entire system pipeline undergoes a 48 hour leak detection test with ventilation and pressurization;

6Heating and cooling system * independent;

7Internal spiral refrigerant copper tube;

8Slope evaporator;

9Dry filters, solenoid valves, etc. are all imported original parts;

10Dehumidification system: using evaporator coil dew point temperature laminar contact dehumidification method;

Low concentration ozone aging test chamberprotection system

1Air purification and filtration device;

2Exhaust gas treatment device;

3Overall equipment overheating;

4Overall equipment under phase/reverse phase;

5Overall equipment overload;

6Overall equipment timing;

7Water shortage protection;

8Compressor overpressure protection;

9Other protections include leakage, operation indication, automatic shutdown after fault alarm, etc.