Box-type UV Aging Test Chamber / ISO Certified UV Simulation Environment Test Chamber
1. Application
1.1 The UVA-340 fluorescent ultraviolet lamp is used as the light source to simulate the damage caused by sunlight, rain and dew. UV weatherproof chamber uses fluorescent ultraviolet lamp to simulate the effect of sunlight, and uses condensation moisture to simulate dew. The material under test is placed in a cyclic program of alternating light and moisture at a certain temperature. The accelerated weathering test is carried out to obtain the results of the weathering resistance of the material. UV chambers can be used for several days or weeks to reproduce the hazards of outdoor months or years. Hazard types include: fading, discoloration, loss of light, pink, cracking, turbidity, bubbles, brittleness, strength, decay and oxidation. This machine contains sprinkling device.
1.2 The ultraviolet accelerated aging test chamber can simulate the ultraviolet, rain, high temperature, high humidity, condensation, darkness and other environmental conditions in the natural climate, by reproducing these conditions, merging into a cycle, and letting it automatically complete the cycle number. This is the working principle of UV aging test chamber. In this process, the equipment can automatically monitor the blackboard temperature and the flume temperature. By configuring the irradiance measuring and controlling device (optional), the irradiance can be measured and controlled, so that the irradiance can be stabilized at 0.76W/m2/340nm or the specified set value, and the life span of the lamp can be greatly prolonged.
2. Standards
Conforms with ASTM G 153, ASTM G 154, ASTM D 4329, ASTM D 4799, ASTM D 4587, SAE J2020, ISO 4892, all current UV aging test standards.
3. Chamber Material
(1) The shell is sprayed with A3 steel plate.
(2) The inner liner is made of SUS stainless steel plate.
(3) The box cover is made of A3 steel sheet.
(4) 4 UV series ultraviolet lamps are installed at the top of the studio.
(5) The heating method is high speed heating of titanium alloy, fast heating and uniform temperature distribution.
(6) The box cover is one-way push and pull, easy to open and close.
(7) The bottom of the test box is made of high quality and fixed pads.
4. Sub Item Introduction
Light Source:
The source uses 8 imported ultraviolet fluorescent lamps with a rated power of 40 W as the source. Ultraviolet fluorescent lamps are distributed in machines.
Each side has 4 branches. There are UVA-340 and UVB-313 light source for user configuration.
The energy of the luminescence spectrum of the UVA-340 lamp is mainly concentrated at the wavelength of 340 nm.
The luminescence spectra of UVB-313 lamps are mainly concentrated near the wavelength of 313nm.
We use the UVA-340 lamp.
Because the energy output of fluorescent lamp decays gradually with time, in order to reduce the influence of the experiment caused by the light energy decay,
So every quarter of the fluorescent lamp life of the test box in all eight lamps, a new lamp replaces an old one.
A lamp tube, in this way, the ultraviolet light source is always composed of a new lamp and an old lamp, thus obtaining a constant output of light energy.
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