电热管是以金属管为外壳，沿管内 中心轴向均布螺旋电热合金丝其空隙填充压实具有良好绝缘导热性能的氧化镁砂，管口两端用硅胶密封，这种金 属铠装电热元件可以加热空气，金属模具和各种液体。
Electric heat pipe based on metal shell, along the axial uniform spiral tube center electric thermal bonding wire the gap filling compaction with good thermal conductivity of insulating oxide sintered magnesia, with silicone seal on both ends of the tube, the metal armoured electric heating element to heat the air, metal molds and all kinds of liquid.
电热管组装是 在入粉机上填充耐高温、绝缘和 导热性的氧化镁粉，再经过缩管机上“缩经”而成，可以单独使用，也可由 若干片组成加热器，具有远 红外线加热功能金属管状电热元件应用于电烤箱，还有远 红外发热板和发热盘。用螺旋 状电热合金丝作发热材料，外面包敷以PVC、硅像胶 等绝缘材料即制成电热线，绝缘层 的包敷在生产上是在挤塑机上实现的。
Electric heat pipe assembly is in the powder filled with high temperature resistance, insulation and thermal conductivity of magnesium oxide powder, go up after shrink machine “shrink”, can be used alone, also can be composed of several pieces of heater, with functions of far infrared heating tube shape electric heating element used in electric oven, and the far infrared heating plate and the heating plate. Using spiral electric thermal bonding wire as heating material, bread apply to PVC, silicon rubber insulation materials such as as that is made from electric hotline, insulation package apply is on the squeeze molding machine in the production.
Electric heat pipe assembly is currently the most widely used, simple structure, reliable performance, long service life and sealed electric heating element, can be successfully applied to industry, household electrical appliances, more and more widely used. Hope that more users about the structure of electric heat pipe principle have clear understanding.