Ozone Aging Test Chamber IntroductionThe content of ozone in the atmosphere is very small, but it is the main factor for rubber cracking. The ozone ag
Free QuoteThe content of ozone in the atmosphere is very small, but it is the main factor for rubber cracking. The ozone aging test 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 antiozonants. The method of protective efficiency, and then take effective anti-aging measures to improve the service life of rubber products,
Ozone aging test chamber. The ozone gas generated by the silent and high-efficiency ozone generator and a certain amount of treated air are mixed in the exchanger and sent to the test chamber. The ultraviolet detector will feedback the ozone concentration continuously detected online to the ozone The generator control system enables the control system to effectively control the occurrence of ozone according to the set value, so that the test chamber maintains the set ozone concentration, and the heating and humidification system works to meet all test conditions.
According to the test methods and standards, it can be divided into "static" and "dynamic". Static means that the sample is stretched and then placed in the test chamber for testing. Dynamic means that the sample is placed on the fixture of the test chamber, and the test is done while stretching. In the test, the tensile fluctuation is about 5%-45% of the tested sample itself.
The inner and outer boxes of the ozone test chamber are made of SUS304 and plastic-sprayed steel plates respectively. The inner box has buckles and multi-layer sample racks (please consult sales for specific quantities), all of which are made of 304. The outer chamber is treated with sheet metal spraying, which is beautiful in color and corrosion-resistant.
Usually the chamber has a single door, the left door is open. It can also be made into double doors (need to customize).
There is a hollow heating and frost-proof observation window on the door, which is resistant to high and low temperature, and will not be affected by fog. It has LED lights, which are opened when in use and closed when not in use. The size of the conventional observation window is W400*H300mm. There is also a silicone rubber sealing strip on the door, which is resistant to high and low temperature, anti-aging and good sealing performance. In order to prevent condensation or frost on the door frame and the edge of the door during the low temperature test, the door frame and the edge of the door are provided with an electric heating defrosting device. The door handle adopts a non-reaction handle, which can open the door with one hand, easy to operate, safe and reliable.
There is a 50mm diameter test hole on the left side of the chamber, equipped with a silicone rubber plug, which can be used for external test power lines or signal lines.
The control panel is on the upper left of the chamber, and the conventional control is PID touch screen. User-friendly operation, English operating system, other languages can be customized, need to confirm before placing an order.
The sound and light alarm system is above the control panel, with three colors of yellow (standby), red (alarm) and green (running). When the device is in different states, the corresponding indicator light will be on for a long time.
The water outlet of the equipment is at the rear and bottom position. After connecting the water pipe, the water can be directly drained to the sewer without pollution.
The small temperature and humidity chambers all use the Foma wheel, which is convenient for the operator to move the equipment. By simply releasing the footbrake, one person can transfer the device. Of course, before the transfer, it needs to be powered off.
The temperature and humidity chambers produced by Noki use 220V/380V voltage, 50 Hz. Voltage Hertz can be customized, please explain the situation when communicating the needs of the equipment, so as to avoid the situation that the equipment cannot be used after receiving it.
Requirements for Sample Holders - Static and Dynamic 2-in-1
a) Fix both ends of the sample with clamps at the required elongation. When in contact with ozonated air, the length direction of the sample should be substantially parallel to the direction of the airflow
b) The jig should be made of a material that does not easily decompose ozone (eg aluminum).
c) Make the rotation speed of the sample between (20^-25) mm/s, in a plane perpendicular to the dry air flow, each sample moves continuously along the same path
d) The time for one rotation of the same sample is (8^-12) min. The scanning area of the sample is at least 40% of the effective area of the test chamber.
e) Sample preparation shall comply with the provisions of GB/T 9865.1. Specimens are preferably cut from newly extruded test pieces or, if desired, from the finished product. The samples shall be at least 3 samples per test condition. The width of the long standard sample is not less than 10mm, the thickness is 2.0mm ± 0.2mm, and the length of the sample between the two ends of the clamp before stretching is not less than 40mm.
French Tecumseh fully hermetic compressor to ensure the cooling requirements of the studio.
R404a; (environmentally friendly refrigerant)
Forced air cooling
Ozone aging test chamber dehumidification system
Ozone aging test chamber heating system
Heating method: direct heating in the test chamber;
The military-grade stainless steel fin-type heating tube is adopted, and the heating rate is stable, which can keep the temperature inside the chamber from changing sharply. It has the advantages of corrosion resistance, high and low temperature resistance, no leakage, and easy installation;
Using SSR (solid state relay) output control, it has the advantages of no noise, reliable operation, long life, strong anti-interference ability, fast switching speed, small external interference, and convenient use;
The air circulation system is located in the interlayer at the rear of test chamber, in which devices such as heaters, fan blades, evaporators, and PT100 temperature sampling sensors are distributed.
When the fan rotates at high speed, the air in the working room is sucked into the air duct from the upper part, and the heat generated by the heater and the cooling capacity of the evaporator are fully mixed in the air duct and blown out from the bottom, and the heat exchange with the sample is carried out in the working room. The air after it is sucked into the air duct for mixing; repeated circulation, so as to achieve the target temperature requirements, and at the same time ensure a higher temperature and humidity index in the test chamber.
Steam generator: vaporizes water to generate the steam required by the equipment.
Water level control: The solenoid valve controls the water inlet, the liquid level switch controls the water level, and provides signals for controlling the water addition and alarm of the humidifier
Ozone aging test chamber ozone system
The electrode adopts the welding process of quartz glass tube electrode, no impurities, no glue seal, not easy to produce electrode breakdown and aging, long life of electrode, and high frequency creeping discharge ceramic corona generator, the electrode is limited by the production process of ceramic matrix, When used under different ambient humidity conditions, the electrode is easily broken down
Utilize voltage silent discharge tube to generate ozone
Ozone concentration sensor for precise control
After the experiment is completed, the ozone in the experiment chamber is exhausted to the outside through a special exhaust fan and air duct.
Ozone Flow Regulator
Glass flow rotameter for precise adjustment
GB12831-86 Vulcanized rubber artificial climate (xenon lamp) aging test method
GB/T1644.2-1999 Test method for plastic laboratory light source exposure (Part 2: Arc xenon lamp)
GB/T8427-89 Textile color fastness test, color fastness to artificial light xenon arc
GB/T8430-98 Test for color fastness of textiles, color fastness to artificial light xenon arc
GB/T1865-97 Paints, varnishes, artificial weathering and artificial radiation exposure (filtered xenon arc radiation)
GB/T16991-97 Textile Color Fastness Test High Temperature Light Fastness Color Fastness: Xenon Lamp
GB/T5137.3-96 Test method for radiation resistance, high temperature, humidity, combustion and simulated climate resistance of automotive safety glass
GB/T16259-96 Color building materials, artificial climate acceleration, color aging test method.
GB/T2423.24-95 Environmental Testing of Electronic and Electrical Products Part 2: Test Methods, Test SQ: Simulated Solar Radiation on the Ground
ASTM D1149 Test Method for Ozone Cracking of Rubber in a Controlled Environment
ISO 1431 Test method for resistance to ozone cracking of vulcanized or thermoplastic rubber
ASTM D1171 Standard Test Method for Rubber Aging - Ozone Surface Cracking in Outdoor or Test Chamber (Triangular Specimen)
1. Voltage 220V 380V 50Hz
2. Ambient temperature 5℃～+35℃ Humidity≤85%RH
4. Atmospheric pressure
5. Venue Requirements
a) It is better to have a drain or a drain pipe near the test chamber.
b) Arrange the on-site wall to configure the air or power switch of the corresponding capacity for the equipment
c) The ground site should be flat, well ventilated, free of flammable, explosive, corrosive gases and dust
AC220V 50HZ Single-phase three-wire system, single-phase 220V
Can adapt 110V, 230V, 240V, 360V, 380V, 415V, etc
