As the name implies, Round Molded Graphiteis a cylindrical product of graphite electrode, which is made of graphite block materials by crushing, screening, batching, shaping, cooling, roasting, dipping and graphitization of post section petroleum coke and medium temperature coal tar pitch. It has the advantages of high temperature resistance, corrosion resistance, good conductivity and light weight. It is mainly used for large DC resistance furnaces, blast furnace bricks, conductive electrodes, lining anti-corrosion and other purposes. Round Rod Graphite,Graphite Round Stock,Round Molded Graphite,Graphite Round Square Shape CARBONS TECH&CREATION(HENAN) INDUSTRY CO.,LTD , https://www.kygraphiteblock.com
Dingbao mainly compares the methods for testing weatherability and light stability:
The best way to test is to rely on the need for testing, and each method can be very effective. The appropriate test equipment should be selected based on the product or material being tested, the final application conditions, the degradation mode under consideration, and the budget.
Xenon lamp aging test box and ultraviolet aging test box are the most widely used accelerated aging testing equipment. The testing principles of these two testing equipment are completely different. The xenon lamp aging chamber simulates all the spectrum of sunlight, including ultraviolet (UV), visible, and infrared (IR). The xenon lamp spectrum essentially matches the spectrum of sunlight in the range of 295 nm to 800 nm. The xenon lamp aging chamber is used to test many products that are sensitive to the long wavelength, visible light, and infrared rays of ultraviolet light.
Ultraviolet aging chambers cannot simulate the full spectrum of sunlight. Its principle is that for those durable materials that are exposed outdoors, the short wavelength band of 300-400 nm is the main cause of aging damage. It can be seen that in the short-wave region of ultraviolet rays, which is the lowest band from 365 nm to the sunlight, the ultraviolet aging test box can well simulate sunlight, however, it will be powerless for longer wavelengths.
“Dingbao†is a hi-tech enterprise specializing in the development, production, sales, and service of test equipment. Its products are widely used in scientific research, military, aviation, shipbuilding, post and telecommunications, automobiles, motorcycles, electricians, chemicals, and medical care. Electronics, semiconductors, optoelectronics, machinery and other enterprises and institutions and school laboratories. With excellent quality, reasonable price and perfect service network, we provide our customers with the most professional, most efficient and ideal service, so that customers will not have to worry about after purchasing our products. Users are welcome to negotiate.
The high-purity graphite, graphite block and Molded Graphite produced by Pingdingshan Carbon Graphite Factory for many years are excellent, and the specifications of Round Molded Graphite are as follows: φ 450*800, φ 520*400 φ 630*420, φ 660*620 φ 780*600, φ 820*350~500 φ 900*350~400, φ 1050*350~400 φ 980~350*400, φ 1160*350~680 φ 1260*350~680, φ 1330*400 φ 1420*400, φ 1520*400 φ 1630*350, φ 1800*350 φ 2000*350, φ 520~2000*680