Single-head electric heating tubes are widely used in the process of mold electric heating tubes or in other industrial electric heating equipment. Since everyone uses them more, they will find that there will be a short circuit between the two lead wires, so many customers When changing clothes, there is a problem with the magnesium oxide rod and the magnesium oxide powder in the winding wire, so the electric heating tube manufacturer is required to change the original 95% magnesium oxide to 98% or even 99% pure magnesium oxide, so as to improve the failure of the two lead wires. Probability of a short circuit. Of course, we cannot deny that magnesium oxide powder is the most useful. Inferior non-modified magnesium oxide powder will absorb moisture in the air, which will cause the electric heating tube to short-circuit, and then the two leads of the single-head electric heating tube are short-circuited. For this reason. Now let's take a look at how the problem caused by the aperture distance is short-circuited:
Through my communication with the technician and the attributes of the electric heating tube, I learned:
(1) The distance between the inferior sealing silica gel and the first circle of screws at the root of the lead wire is too close, and the manufacturing process is produced at this time.
(2) Using iron, chromium and aluminum as the excessive resistivity of the lead wire to increase the temperature of the lead wire and cause an accident.
(3) The distance between the two holes through the lead wire is too close.
(4) The location of the heating zone has moved to the lead-out port and is exposed to the air.
(5) Excessive temperature is a sufficient and necessary condition for short circuit caused by the rated voltage of the two lead wires.
(6) When in use, the aperture of the mold hole is horn-shaped, which is due to the defect of the module drilling process, which affects the heat conduction.
(7) There is powder loosening at the end of the lead wire at the nozzle, which affects heat conduction and air breakdown.
The above seven reasons are only our insights and are for customers' reference only. Specific analysis of the specific problems of the electric heating tube.
