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辉光离子氮化炉是七十年代的新产品,是新型化学热处理设备,在国内生产的这种设备上,阴极绝缘件一直没有很好地解决。过去一般采用普通陶瓷作绝缘器件,也有少数单位用玻璃丝带或石英砂作绝缘材料。而这些材料作为离子氮化设备的绝缘器材都有一些难以克服的缺点。一般陶瓷成型尺寸不稳定,承载能力低,特别在装炉时经不起冲击载荷,有的在打弧和长时间受阴极溅射情况下,绝缘性能显著降低,若采用九五瓷,同样存在烧成时易变形,烧成率低,不易加工。在高温下易炸裂等不可克服的缺点。
Glow ion nitriding furnace is a seventies new product is a new type of chemical heat treatment equipment, domestic production of such equipment, the cathode insulation has not been well resolved. In the past generally used ordinary ceramic insulation devices, there are a few units with glass ribbons or quartz sand for insulation. However, these materials have some insurmountable disadvantages as insulating materials for ion nitriding equipment. General ceramic molding size instability, low carrying capacity, especially when loaded in the furnace can not withstand the impact load, and some arc and long time under the condition of the cathode sputtering, insulation significantly reduced, if the use of nine five porcelain, the same Easy deformation when firing, firing rate is low, not easy processing. Easy to burst at high temperatures and other insurmountable shortcomings.