Second, the physical properties of neutral refractory 0.670W. (MK) -1, electrical insulation 200kv, radioresistant 5 × 1014 neutron / cm2 contrast ratio. Another chemically neutral refractory composition, structure, and kaolin similar structure, but also has some of the characteristics of refractory clay minerals agency, or scattered good suspension refractory Which house in aqueous media and organic solvents, white tablets fine, sticky and so on. Therefore refractory multiple characteristics of both neutral refractories refractory minerals and clay minerals. Roller hearth kiln (roller kiln). On the bottom of the tunnel for a row of heat-resisting steel or a high temperature ceramic substance made of parallel rolls, each roll center distance must be a separate pad or article at least three rollers supported by refractory sales, each roller in under the action of external furnace sprocket, chain, such as a motor drive mechanism to rotate constantly; large articles can be placed directly on the rollers, under the action of rotation of each roll through the preheating, firing and cooling zone III. Rollers available at low heat-resistant steel, high temperature requires the use of Corundum mullite quality, recrystallized SiC or re Bergamo to stone coating. Conveyor. By the end of a conveyor roller kiln stays tight with a heat-resistant alloy materials, products placed on the conveyor belt, excellent electric mechanism driven by the belt as a result of active wheel tropical like the beginning of the continuous cooling belt final drive. Heating element is usually installed in the kiln top and bottom. Refractory agents, shangzhuang Refractories (certified), Jiangxi refractories by shangzhuang Refractories Co., Ltd., Zhengzhou City. Zhengzhou City shangzhuang Refractories Co. (www.yntjj.com.cn) (www.yntjj.com.cn) is Zhengzhou, charge, flux leader, over the years, the company is implementing the scientific management, innovation and development, honesty and trustworthiness guidelines, and satisfy customer needs. In shangzhuang refractory leadership with the staff warmly welcome all inquiries negotiations to create shangzhuang Refractories a better future.