描述

ASTM G151 Uv light accelerated resistance test chamber,Uv aging testerISO 4892
This test chamber can simulate the harm caused by sun and rain, using fluorescent ultraviolet lamp to simulate sunlight, using distilled water spray to simulate the effect of rain. The tested material is placed in a light cycle program at a certain temperature for testing. The machine can be used in days or weeks to reproduce outdoor months or years of damage. Harm types include: fading, 变色, loss of light, 粉末, 开裂, 浊度, bubbles, brittleness, 力量, decay and oxidation.
ASTM G151 Uv light accelerated resistance test chamber,Uv aging testerISO 4892

ASTM G151 Uv light accelerated resistance test chamber,Uv aging testerISO 4892
标准
国标/T 14522-93 National standard of the People’s Republic of China “Accelerated test method for Plastics, 涂料, rubber materials and artificial climate for machinery industry products”
参考标准: 国际标准化组织 4892, ASTM G151, G154, D4329, D4587, D4799, SAE J2020

ASTM G151 Uv light accelerated resistance test chamber,Uv aging testerISO 4892
Structure and material
1. Studio size: 450×500×1170 mm (D × W × H)
2. 尺寸: about D900×W600×H1580mm
3. Interior material: SUS304 stainless steel plate
Case material: SUS304 stainless steel plate
4. Uv lamp: UVA-340 UV lamp, 总共 8, 40W/ each
5. Water source and consumption: Clean water or distilled water 8 l/day (customer’s own)
6. 控制系统: Touch screen TEMI880,PLC programmable controller

ASTM G151 Uv light accelerated resistance test chamber,Uv aging testerISO 4892
Test equipment
1. The structure of the test chamber is made of corrosion-resistant metal materials and contains 8 fluorescent ultraviolet lamps, test sample rack and temperature and time control system and indicators.
2. The lamp power is 40W.
3. The lights are mounted in a row, with each switch controlling four tubes divided into two groups.

ASTM G151 Uv light accelerated resistance test chamber,Uv aging testerISO 4892
The test box should be placed in the temperature of 15 ~ 35ºC laboratory, 300 from the wall, and should prevent the influence of other heat sources, the air in the laboratory should not be strong circulation, so as not to affect the lighting and condensation conditions.

ASTM G151 Uv light accelerated resistance test chamber,Uv aging testerISO 4892
Test condition
1. The test sample is placed on the sample rack
2. 测试温度: RT+10~70ºC can be used in the light, the temperature tolerance uniformity is ±3ºC.
3. The condensation cycle of each light can be selected as 4H light, 4H condensation or 8H light, 4H condensation and other cycles.
4. After the first light 400 ~ 450H, one or two tubes need to be replaced, and other tubes should be replaced in accordance with the lamp cycle and replacement to compensate for the loss caused by the aging of the tubes. This operation mode ensures the service life of each lamp in 1600 ~ 2000H.
Test sample and performance evaluation
1. Evaluation of appearance: the paint is mainly the evaluation of appearance, plastic and rubber can also be evaluated if necessary, check the main items are luster, 颜色变化, 粉末, spots, bubbles, cracks and dimensional stability. Should try to use the instrument for quantitative item detection, such as gloss meter, color difference meter.
2. Evaluation of mechanical and other properties: general rubber material tensile strength, 伸长, hardness measurement, plastic measurement impact strength, 断裂伸长率, 抗拉强度, 弯曲强度, if necessary can specify other performance test items.