中频感应炉改造节能显著我所１５０中频感应炉自１９８８年投入使用已经６年，由于精铸工艺特殊，腐蚀性气体以及灰尘等原因，使其控制系统严重锈蚀，性能每况愈下，以至瘫痪。为保证生产，提高效益，必须进行更新改造，为此，制定了如下改造内容：一是更换新的送变电源；... Medium frequency induction furnace retrofit energy-saving significant I 150 IF induction furnace has been in use since 1988, 6 years, due to special casting technology, corrosive gases and dust and other reasons, to control the system serious corrosion, performance deteriorating and even paralyzed. In order to ensure the production and improve the efficiency, we must carry out the renovation and reconstruction. To this end, we have formulated the following reformation contents: First, to replace the new power transmission unit;