Sealed crack control industrial electroheat pipe

The utility model discloses a sealed crack control industrial electroheat pipe, including a body, a resistance wire with two draw forth the stick, this body both ends mouth all seal and is equipped with admittedly that seal and the body intussuseption is filled with insulating powder, and this resistance wire is established in the body, and this two draws forth that the stick is sealed respectively to be passed two and seal and electrically conduct connecting resistance silk both ends respectively, should seal including sealing a layer part, should seal layer part and use including the multilayer and draw that excellent arrange inside and outside as the center and sealed rigid coupling is in the same place seals the layer, the layer is sealed including ceramic seal layer and low -melting glass in sealing the layer at least to this multilayer. It has following advantage: can reduce low -melting glass inside self stress and crackle, improve the ability of product heat resistanceheat resistant shake, improve the