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一、ET-4高辐射率敷层目前欧洲正在推广使用一种称之为高辐射率敷层(ET-4 high emisivity coatings)的新型节能涂料。该涂料由英国CRC(Ceramic Refractory Corporation)公司研制生产。经近千次涂敷试用,已获得十分理想的技术经济效果。被称为工业炉技术发展的里程碑。最初该公司原打算研制一种防止炉内金属件在高温下腐蚀的稀薄敷层,但在试验中发现这种涂层改变了喷涂有敷层的金属件的黑度,同时影响通过该金属件的热流量。CRC公司首先在辐射管上对ET-4敷层进行了工业性试验。结果表明,使用ET-4喷涂后,辐射管寿命增加了三倍。在炉子生产率
I. ET-4 High Emissivity Coatings At present, a new type of energy-saving coating called ET-4 high emisivity coatings is being promoted in Europe. The paint by the British CRC (Ceramic Refractory Corporation) company development and production. After nearly a thousand coating trial, has been very ideal technical and economic results. Known as the industrial furnace technology milestone. Originally, the company originally intended to develop a thin coating that would prevent corrosion of the metal parts of the furnace at elevated temperatures. However, it was found during the tests that this coating changed the blackness of the coated metal parts and at the same time affected the passage through the metal parts The heat flow. CRC first conducted an industrial test on the ET-4 cladding on a radiant tube. The results showed a threefold increase in radiant tube life after spraying with ET-4. Productivity in the stove