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一、前言电阻式砂芯干燥炉,在国内逐渐被经济效益显著的远红外砂芯干燥炉取代。目前国内多数厂家采用的远红外砂芯干燥炉,仅是对旧炉进行局部改造,仍沿用原耐火砖炉体;因此节能效果受到了一定限制,劳动条件和砂芯干燥质量尚未得到明显的改善。针对国内远红外砂芯干燥炉使用情况,我们吸取了兄弟厂局部应用远红外加热技术的经
First, the foreword Resistance sand core drying furnace, in the country has been significantly economic benefits far-infrared sand core drying furnace replaced. At present, the far-infrared sand core drying furnace adopted by most domestic manufacturers only partially renovates the old furnace and still uses the original refractory brick body; therefore, the energy-saving effect has been limited, and the working conditions and the quality of the sand core drying have not been significantly improved . In view of the use of far-infrared sand core drying furnace in our country, we have learned that the far-infrared heating technology