Hongjin box-type ultraviolet aging test box.

Hongjin box-type ultraviolet aging test box.
This ultraviolet accelerated aging test box adopts imported UVA-340 fluorescent ultraviolet lamp as the light source, which can simulate the harm caused by sunlight, rain and dew. The UV weatherproof box uses fluorescent ultraviolet lamps to simulate the effect of sunlight, and uses condensed moisture to simulate dew. The tested material is placed in a cycle program of alternating light and moisture at a certain temperature for testing, and accelerated weather resistance test is performed on the material to obtain the weather resistance result of the material. The UV box can reproduce the hazards that occurred outdoors for months or years in a few days or weeks. The hazard types include: fading, discoloration, loss of gloss, pink, cracking, turbidity, bubbles, embrittlement, strength, decay, and oxidation. This machine contains spray device.

1. Product parameters
Working room size: W1140mm×H600 mm×D500 mm
Dimensions: W1300mm×d550 mm×H1760 mm
The center distance of the lamp: 70mm
The distance between the specimen and the nearest parallel surface of the lamp surface: about 50mm
Wavelength range: UV-A wavelength range is 315~400nm
Radiation intensity: 1.5W/m2/340nm
Temperature resolution: 0.1℃
Illumination temperature range: 50℃~70℃／Temperature tolerance is ±3℃
Condensing temperature range: 40℃~60℃／Temperature tolerance is ±3℃
Blackboard thermometer measuring range: 30~80℃/tolerance of ±1℃
Temperature control method: PID self-tuning temperature control method
Humidity range: about 45%~70%R.H (light state)/98% or more (condensing state)
Sink requirements: the water depth is not more than 25mm, and there is an automatic water supply controller
Suggested use environment of the instrument: 5~35℃, 40%~85%R·H, 300mm from the wall

two. The main function
This ultraviolet accelerated aging test box adopts imported UVA-340 fluorescent ultraviolet lamp as the light source, which can simulate the harm caused by sunlight, rain and dew. The UV weatherproof box uses fluorescent ultraviolet lamps to simulate the effect of sunlight, and uses condensed moisture to simulate dew. The tested material is placed in a cycle program of alternating light and moisture at a certain temperature for testing, and accelerated weather resistance test is performed on the material to obtain the weather resistance result of the material. The UV box can reproduce the hazards that occurred outdoors for months or years in a few days or weeks. The hazard types include: fading, discoloration, loss of gloss, pink, cracking, turbidity, bubbles, embrittlement, strength, decay, and oxidation. This machine contains spray device.
This ultraviolet accelerated aging test box can simulate the environmental conditions such as ultraviolet, rain, high temperature, high humidity, condensation, darkness, etc. in the natural climate, by reproducing these conditions, merge into a loop, and let it automatically execute the loop to complete the loop frequency. This is the working principle of the UV aging test chamber. In this process, the equipment can automatically monitor the temperature of the blackboard and the water tank; by configuring the irradiance measurement and control device (optional), the light irradiance can be measured and controlled to stabilize the irradiance at 0.76W/m2/340nm or Specify the set value, and greatly extend the life of the lamp.
Comply with international testing standards:
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.
three. Sub-item introduction
A. Light source:
The light source adopts 8 imported ultraviolet fluorescent lamps with a rated power of 40W as the light source. Ultraviolet fluorescent tubes, distributed in the machine
4 on each side. There are UVA-340 and UVB-313 light sources for users to choose and configure.
The luminous spectrum energy of UVA-340 lamp tube is mainly concentrated at the wavelength of 340nm,
The emission spectrum of UVB-313 lamp tube is mainly concentrated around the wavelength of 313nm.
We use UVA-340 tube
Since the energy output of fluorescent lights will gradually decay over time, in order to reduce the impact of the test caused by the attenuation of light energy,
Therefore, in this test box, every 1/4 of the life of the fluorescent lamp in all the eight lamps, a new lamp will replace an old one.
Lamp tube, in this way, the ultraviolet light source is always composed of new lamps and old lamps, so as to obtain a constant output light energy.
The effective life of the lamp tube can be about 1600 hours.
B. Electric control:
a. Both the blackboard temperature and the condensation temperature are controlled by a controller,
b. The rest are basically imported electronic components.
Irradiance uniformity: ≤4% (at the surface of the sample)
Blackboard temperature monitoring: using standard Pt-100 blackboard temperature
Degree sensor,
Accurately control the surface temperature of the sample during the test.
Blackboard temperature setting range: BPT 40-75℃;
But the temperature protection device inside the machine
The actual maximum temperature limit of the setting is 93℃±10%.
Blackboard temperature control accuracy: ±0.5℃,
c. Water tank temperature monitoring: During the loop test, there is a test section that is the dark condensation process, which requires energy in the tank.
Produces saturated water vapor at a higher temperature. When water vapor encounters a relatively cold sample surface, it will condense on the surface of the sample.
water.
The water tank is located in the lower part of the box and has a built-in electric heater.
Water tank temperature control range: 40~60℃
d. The test chamber is equipped with a time controller, the range is 0~530H, and the power failure memory function.
e. Safety protection device:
◆Over-temperature protection in the box: When the temperature in the box exceeds 93℃±10%, the machine will automatically cut off the electricity to the lamp and heater.
Source supply, and enter the equilibrium state to cool down.
◆The low water level alarm of the water tank prevents the heater from burning.
C. Standard sample folder:
The maximum thickness of the sample can reach 300mm,
Non-standard size users need to explain when ordering.
When the sample holder or sample holder is not needed, it can be loaded directly.
◆ There are 14 rows/sides of standard sample holders, and a blackboard thermometer is placed in one of the rows on the back.
◆ The machine is easy to open the door.
D. Box body making materials:
◆ The inner tank of the box is made of SUS304# stainless steel plate
◆ The shell is made of SUS304# stainless steel plate
◆ The sample rack is made of stainless steel and aluminum alloy frame, which is convenient for sample access
E. General situation of the whole machine:
◆ Dimensions: about H1770mm×W1350mm×D 530 mm
◆ Weight: about 150 kg
F. 3 The host computer requires working environment conditions:
◆ Power requirements: 220V±5%, single-phase three-wire, 50Hz, 8A, 10A slow blow fuse required.
◆ Environment: 5~35℃, 0~80%RH, good ventilation, clean indoor environment.
◆ Working area: about 234×353cm
◆ Drainage: Drainage ditch is required on the floor near the host.
◆ For ease of movement, casters are installed at the bottom of the instrument and the position is fixed
Then fix the position of the testing machine with a U-shaped ring.

Four, control instrument
The equipment uses a true color touch screen PID temperature intelligent controller, which has high temperature control accuracy and good stability.
Five, meet the standards
GB/T14522-93 GB/T16422.3-1997 GB/T16585-96 and other current ultraviolet aging test standards