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stone coated metal tile weathering test program recommendations
stone coated metal tile weathering test program recommendations
Tile surface weathering test is dump heavy rain and winter temperatures repeated the role in the analog summer sun tile surface at high temperature, acceleration of climate on the roof tile conducted aging test is to test and evaluate the quality roof tile system, the most important the pilot project. Weathering test and the actual project has a good correlation, can well reflect the actual weather performance. Large weather resistance test requirements by 20 times the sample temperature (70 ℃) - Rainfall (15 ℃) and 20 times the heating cycle (50 ℃) - frozen (-20 ℃) shall occur after circulation hollowing, shedding and cracking. Specific test methods research, draw a similar national building materials testing center weathering test methods.
Our internal performance testing of integrated outdoor series has the following characteristics:
A high frequency: a focus on technology and testing for manufacturers, research and development every product, every adjustment formula, the replacement of each raw material, in addition to detection and analysis of individual indicators should be strictly quantitative, physical products should also be carried out construction performance qualitative and comprehensive performance testing.
Second, the aging high: Business is war, enterprises in order to meet the needs of the market for aging tests are often very demanding, while the vast majority of the testing organization due to institutional reasons, the services provided are often difficult to achieve enterprise testing requirements .
Third, the sunshine simulation: anti-aging test method is prevailing domestic xenon arc radiation, but in foreign xenon test methods are widely applied test arc radiation and ultraviolet aging, these two methods are based on entirely different principles. Xenon lamp irradiation chamber imitation full solar spectrum, including ultraviolet, visible and infrared light, the aim is to simulate sunlight. The UV aging test does not attempt to imitate the sun's rays, but only mimic the effect of sunlight damage. It is based on the principle that the durability of the material, the long-term outdoor exposure, and short-wave ultraviolet radiation by the damage caused by the aging of the maximum.
After a comprehensive cost analysis: We intend to use UV + direct state general curing lights simulate sunlight to ensure the destruction of sunshine and temperatures are close to the actual situation of destruction.
Fourth, analog temperature: According to the requirements of the subject line, the temperature control range weathering laboratory should reach -25 ℃ ~ 30 ℃. However, due to the cooling equipment is expensive, and according to the temperature range in hot summer and cold winter region, we Zanan 0 ℃ ~ 70 ℃ simulation, as follows:
1: Range 0 ℃ ~ 10 ℃: mainly uses ice to cool the laboratory, using both experimental tiles were a mixture of ice water spray cooling.
2: Range 10 ℃ ~ 50 ℃: mainly temperature control box to adjust the temperature of the laboratory, which is adjustable in the range from room temperature to 50 ℃, while the use of auxiliary heating means for heating the laboratory.
3: The range of 50 ℃ ~ 70 ℃: Summer sunshine for a long time, and large solar radiation, air temperature is usually integrated roof level reaches the outer surface 60 ~ 70 ℃, the west wall synthesis temperature reaches 50 ~ 60 ℃, the east wall synthesis temperature reaches 45 ~ 50 ℃, according to this requirement, we have adopted a 5-10 group and two groups bake ultraviolet lamp lights to simulate sunlight baking, make sure the wall surface temperature to achieve the desired test temperature, and to ensure adequate exposure time.
Five, with reference: As detection methods are not representative of our products will be able to achieve such a requirement, but you can get color stone metal tile adhesives 3020 produced stones metal tile and other similar color stone tile products that do the same test to distinguish the pros and cons.
  Qingdao Alabama Industrial Co., Ltd was founded in 1994 and has since become one of the largest manufacturers of color stone coated metal roof tiles.