Equipment use

         XR-UV series ultraviolet weatherproof box can simulate the harm caused by sunlight, rain, and dew. UV uses fluorescent ultraviolet UV lamp to simulate the effect of sunlight, and uses condensed moisture to simulate rain and dew. The tested material is placed at a certain temperature. The test is carried out in a cycle program of alternating light and moisture. UV can reproduce the hazards that occur outdoors in months to years in a few days or weeks. The hazard types include: fading, discoloration, loss of gloss, chalking, cracking, turbidity, bubbles, embrittlement, strength decline and oxidation. UV test data can help you choose new materials and evaluate how changes in formulations affect the durability of new products.

Equipment structure

The structure of the ultraviolet weatherproof box is a stainless steel inner box space. Two rows of four lamps are installed to simulate ultraviolet light. The temperature of the inner box is increased by a humidification system to simulate a humid environment, and a sprinkler system is used to simulate rain. Three different environments are set to cycle alternately through programming.

开机界面

运行界面

参数设定界

Alarm information

1. Technical indicators

1. Model number: XR-UV-A (intelligent type)

2. Temperature range: RT+10℃～70℃

3. Temperature uniformity: ±3℃ Temperature fluctuation: ±0.5℃

4. Humidity range: ≥75%RH

5. Center distance in lamp tube: 65~70mm

6. The distance between the test product and the center of the lamp tube: 55mm

7. Ultraviolet tube: UV-A340 wavelength range of 290～400nm (its peak value is 340nm)

8. Standard test piece: 21 pieces of 75×150mm

9. Irradiation intensity: 0.30-1.1W/㎡/adjustable 340nm band [can reach 1.38 W/㎡] (setting the irradiation intensity value through the touch screen)

10. Irradiation control: Intelligent control of irradiance imported from Germany, real-time feedback of irradiance value is detected by irradiance sensor, compared with the set value of irradiation on the touch, and then the lamp town is controlled by the output voltage of PLC The flow device finally realizes the control of the brightness of the lamp tube, so as to adjust the irradiance PID setting and automatically compensate the set value.

11. Compliant with standards: GB/T 14522-93 ASTM G 154, ISO 4892-1 ISO 11507 ASTMD 4329

2. Structure and material

1. Studio size: 500 × 1140 × 400mm (depth × width × height)

2. Dimensions: D660XW1400XH1550mm

3. ◎Inner material: SUS304 stainless steel plate

◎No shell rust steel; SUS304 paint

4. Q-LAB American brand: UVA-340 ultraviolet lamp, 8 pieces in the second row, 40W/piece (12 pieces in total) Specification: 1220MM length, diameter: 38MM

5. Water source and consumption: clean water or distilled water 8 liters/day (customer provided)

6. Control system: Teelong (Siemens touch screen and PLC controller)

7. Main components: All electrical appliances of French Sneider and Omron of Japan

8. Automatic control of radiation sensor: Teelong intelligent radiation sensor, 0-5V signal output

There are four UV solar eyes, each of which controls two lamps, which can independently control the irradiance

3. Test equipment

1. The structure of the test box is made of corrosion-resistant metal materials, including 8 fluorescent ultraviolet lamps, a water pan, a test sample rack, a temperature and time control system and an indicator.

2. The lamp power is 40W, and the lamp length is 1200mm. The uniform working area of the test box is 1140×500mm.

3. The lights are installed in a row of four, and installed in two rows. The tubes of each row are installed in parallel, and the center distance of the lights is 70 mm.

4. The test sample is fixedly installed at a position 50 mm away from the nearest parallel surface of the lamp surface. The test sample and its bracket constitute the inner wall of the box, and their backs are exposed to the cooling air at room temperature due to the temperature difference between the test sample and the air in the box. In order to produce stable condensation conditions during the condensation stage on the surface of the test sample, the test box should generate natural air convection from the bottom through the outer wall of the box and the channel of the test sample.

5. The water vapor is generated by the water tray with the lower heating box, the water depth is not more than 25mm, and there is an automatic water supply controller. The water tray should be cleaned regularly to prevent the formation of scale.

6. The temperature of the test box is measured by a sensor fixed on a black aluminum plate (black board) with a width of 75 mm, a height of 100 mm, and a thickness of 2.5 mm. The blackboard should be placed in the central area of the exposure test. The measuring range of the thermometer is 30～80℃. , The tolerance is ±1℃. The light and condensation stage should be controlled separately, and the condensation stage is controlled by the heating water temperature.

7. The test box should be placed in a test room with a temperature of 15～35℃, 300mm away from the wall, and the influence of other heat sources should be prevented. The air in the test room should not circulate strongly, so as not to affect the light and condensation conditions.

4. Test conditions

1. The test sample fixing device is on the test rack, facing the fluorescent lamp. When the sample does not fill the sample rack, it is necessary to fill the sample rack with a blackboard to keep the inner wall of the test box closed.

2. Test temperature. Three temperatures of 50, 60, 70°C can be used for illumination, and 60°C is preferred; the temperature in the condensation stage is 50°C, and the temperature tolerance uniformity is ±2.

4. The cycle of each condensation of illumination can choose 4H illumination, 4H condensation or 8H illumination, 4H condensation two cycles.

After the first 400-450 hours of light, each row of tubes needs to be replaced with a fluorescent lamp, and other tubes should compensate for the loss caused by the aging of the tubes according to the lamp cycle and replacement method. This mode of operation ensures that the service life of each lamp tube is between 1600 and 1800H.

5. When replacing the lamp, the water pan should be wiped dry and cleaned to avoid the formation of scale.

5. Test samples and performance evaluation

1. Appearance evaluation: The paint is mainly the appearance evaluation. Plastic and rubber can also be evaluated when necessary. The inspection items are mainly gloss, color change, chalking, spots, blistering, cracks and dimensional stability. Instruments should be used as far as possible for quantitative item testing, such as gloss and color difference meters.

2. Evaluation of mechanics and other properties: general rubber materials are tested for tensile strength, elongation, hardness, impact strength, elongation at break, tensile strength, bending strength of plastics, and other performance test items can be specified if necessary.

Six, after-sales service commitment

1. Warranty for 12 months, lifetime service;

2. Free installation, debugging and training at the buyer's site;

3. After the equipment is checked and accepted, Shenzhen City will arrive at the scene service within 8 hours; outside the city and Guangdong Province will arrive at the scene service within 24 hours; outside Guangdong Province will arrive at the scene within 3 working days to solve the problem for the user.

4. During the warranty period: If a part is damaged due to normal operation, the supplier can replace a part for free.

5. After the warranty period: If it is normal operation, a component or part is damaged and needs to be replaced, and only the cost will be charged.

6. Comprehensive technical training can be provided, and timely and perfect after-sales service should be provided for equipment maintenance, spare parts supply and other aspects

Seven, delivery deadline: delivery within 25 working days from the date of receipt of the deposit.

8. Price: Including freight, tax and commissioning fee.

9. Delivery method: Free delivery by our company to the first floor of the designated place, and installation, commissioning, training and use. (If there is no industrial elevator in the laboratory above the second floor, customers need to arrange a crane by themselves)

This quotation has been confirmed by both parties to have the same legal efficiency as the contract.

smart

There are four nozzles on one side and eight on both sides.

21 sample racks, each size: 75X150MM (ten on one side, eleven on the other side)