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本文介绍了一种节能均温型井式电阻炉的制造技术特点及机理。该炉改进了现行井式电炉通常设计方法,解决了常规井式电阻炉热效率低、热场不均、加热体寿命短等技术缺陷。它采用了长纤维加珍珠岩复合型均温节能炉衬、加热体分区匹配热场、粗丝精绕制长寿命加热丝、高精度微电脑模糊温度控制系统等先进技术。该炉该炉节电率:20%-30%;温度均匀度:上中下区温差±1-2℃;低、高温区(室温-1200℃)全过程程序控温精度:〈±5℃。其技术已接近世界同行先进水平,性价比很高。保护气氛井式电阻炉可替代真空要求不高的真空炉,并广泛应用于金属退火、淬火、渗碳、渗氮、还原等热处理领域;快速膨化井式电阻炉已成为国内外保温材料珍珠岩加工专用炉型。通过各行业的广泛实际应用表明,它所采用的先进技术,在窑炉设计、制作、应用、节能领域都非常具推广价值。
This paper introduces a manufacturing technology characteristics and mechanism of an energy-saving isothermal well-type resistance furnace. The furnace improves the current design method of the pit-type electric furnace and solves the technical defects of the conventional pit type resistance furnace, such as low thermal efficiency, uneven thermal field and short heating body life. It uses a combination of long fiber and perlite composite temperature-saving energy-saving lining, heating body partition to match the thermal field, thick wire precision winding long life heating wire, high-precision microcomputer fuzzy temperature control system and other advanced technologies. The furnace power-saving rate: 20% -30%; Temperature uniformity: upper and lower zone temperature difference ± 1-2 ℃; low and high temperature (room temperature -1200 ℃) The whole process temperature accuracy: <± 5 ℃ . Its technology is close to the world advanced level, cost-effective. Pit furnace resistance atmosphere can replace the vacuum less demanding vacuum furnace, and is widely used in metal annealing, quenching, carburizing, nitriding, reduction and other heat treatment areas; rapid expansion pit resistance furnace has become the insulation material at home and abroad perlite Special furnace processing. Through a wide range of practical applications in various industries, it shows that the advanced technology it adopts is of great promotional value in the field of furnace design, manufacture, application and energy saving.