一、前言由于罩式炉生产能力大、热效率较高、工艺调节方便、设备投资少等优点,所以无论在钢铁厂、有色材料厂以及金属制品厂,历来作为重要的退火炉型。虽然罩式炉的出现已有几十年的历史,然而现在罩式炉无论在容量、结构、性能等方面决非原始的罩式炉能比拟的。近几年来我国在上海、苏州、常州、洛阳、北京、沈阳等地,分别从奥地利、联邦德国等国家引进强对流罩式炉几十台套用于 I. INTRODUCTION Due to its large capacity, high thermal efficiency, convenient process adjustment and low equipment investment, it has always been an important annealing furnace in the iron and steel plant, non-ferrous materials factory and metal products factory. Although hood stoves have been around for decades now, hood stoves are by no means inferior to original hood stoves in terms of capacity, structure, performance, and the like. In recent years, our country from Shanghai, Suzhou, Changzhou, Luoyang, Beijing, Shenyang and other places, from Austria, the Federal Republic of Germany and other countries to introduce dozens of sets of strong convection stoves