电阻炉所以要进行经常性的中、小修,其中一个重要的原因是因电阻丝、带易受炉内气氛或炉衬材料及外力作用的影响而受到化学腐蚀、扭曲变形、顶、撞、压、氧化、脱碳等而无法继续使用。中、小修更换下来的电阻丝极大部分被报废。在我国,因镍铬原料缺乏,其制品价格昂贵,为了降低成本,对电阻丝、带的使用及报废就必须谨慎,在可能的条件下,尽量延长其使用寿命。电阻丝、带经使用后,虽有某些缺陷,但经过局部焊补、修整尚可继续使用者,就一定要修理后再用,对于较 One of the most important reasons for the resistance furnace is that it is subject to chemical corrosion, distortion, top, impact, pressure, and pressure due to the influence of the furnace atmosphere or the lining material and the external force. Oxidation, decarburization, etc. can not continue to use. Medium and small repair resistance wire replaced most of the scrapped. In our country, due to the lack of nickel-chromium raw materials, their products are expensive. In order to reduce the cost, we must be cautious about the use and rejection of the resistance wires and belts, and try to extend their service life under the possible conditions. Resistance wire, with the use of the band, although some defects, but after partial welding repair, dressing can continue to use the user must be repaired, for more