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随着我国节能政策的推进,从1982年开始,针对长期产品存在着高能耗等缺点,电炉行业对国产工业电阻炉五个系列十三个品种一百一十八个规格的产品进行了第二次换代,出现了第二次换代的新产品。新产品同初期和中期产品比较,最突出的特点是节能,分别取得了平均节能30～50％和15～25％的显著经济效果。新产品节能的效果是通过对炉用节能材料的研究与应用和对炉衬、炉门等部分结构设计的改进这两方面的措施而取得的。
With the promotion of China’s energy conservation policy, there have been some shortcomings such as high energy consumption for long-term products since 1982, and the electric furnace industry has taken the second place in the series of 113 products of 118 varieties of five series of domestic industrial resistance furnaces Replacement, there has been the second replacement of new products. Compared with the first and mid-term products, the most prominent feature of the new products is energy saving, which have achieved remarkable economic results of 30-50% and 15-25% respectively on average. The effect of energy-saving of new products is achieved through the research and application of energy-saving materials for furnaces and the improvement of some structural design of furnace linings and furnace doors.