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Color stone metal tile durability test program and recommendations

 Published:2014-02-14 03:11:22    Source:    Views:1392

 Color stone metal tile durability test program and recommendations

2012-04-05
 
 
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First, the tile surface weathering test is to simulate the summer sun tile surface after high temperature dump heavy rain and repeated the role in summer and winter temperatures , accelerating climate roof tile surface aging tests conducted , the inspection and evaluation of the quality of the roof tile system the most important pilot projects. Weathering test and the actual project has a very 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 appear after cycle hollowing, shedding and cracking. South China University of Technology conducted a specific test methods research, draw a similar national building materials testing center weathering detection methods, our internal performance testing of integrated outdoor series products have the following characteristics :
 
Second, the high frequency : a focus on technology and testing for manufacturers , research and development every product , every recipe adjustments, replace each of the raw materials , 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.
 
Third, the aging high : Business is war, enterprises in order to meet the needs of the market , often for aging test requirements are high , while the vast majority of the testing organization because of the system , the service provided is often difficult to achieve enterprise testing requirements .
 
Fourth, the sunshine simulation : anti-aging test method is currently the prevailing xenon arc radiation, but in foreign xenon test methods are widely applied test arc radiation and UV 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 , damage by short-wave ultraviolet irradiation aging maximum .
 
After a comprehensive cost analysis : We intend to use ordinary baking UV + lamps simulate the direct sunlight condition to ensure the destruction of sunshine and temperatures are close to the actual situation of destruction .
 
Five analog temperature : According to the subject line requirements, temperature control range weathering laboratory should reach -25 ℃ ~ 30 ℃. However, due to the cooling equipment is expensive , and according to the temperature range of hot summer and cold winter , we Zanan 0 ℃ ~ 70 ℃ simulation , as follows:
 
The range of 1:0 ℃ ~ 10 ℃: mainly used for cooling the ice to the laboratory , using a mixture of ice water spray cooling experiment conducted watts .
 
Range 2:10 ℃ ~ 50 ℃: temperature control box used mainly in laboratory temperature regulation , which is adjustable in the range from room temperature to 50 ℃, while the use of auxiliary heating means for heating laboratory .
 
3 : Range 50 ℃ ~ 70 ℃: Summer sunshine for a long time, and a large solar radiation , air temperature is usually integrated outer surface of the roof to reach the level of 60 ~ 70 ℃, the west wall integrated temperature reaches 50 ~ 60 ℃, the east wall integrated temperature reaches 45 ~ 50 ℃, according to this requirement, we used the 5-10 group bake lights and two sets of UV light to simulate sunlight baking , make sure the wall surface temperatures to achieve the desired test temperature , and to ensure adequate exposure time .
 
Six , with reference : as detection methods does not mean that our products will be able to achieve such a requirement , but it can take color stone metal tile adhesives 3020 produced metal tile and other stones of similar color stone tile products that do the same test to distinguish the pros and cons .
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