Single-head heating tubes are widely used in the process of mold heating tubes or in other industrial heating equipment. Because they are used more, they will find that there will be a short circuit between the two lead wires. Therefore, many customers I will change the wire, the magnesium oxide rod in the wire winding or have questions about the magnesium oxide powder, so the heating tube manufacturer will propose to change the original 95% magnesium oxide to 98% or even 99% pure magnesium oxide, and then improve the two The probability that the root lead wire will not be short-circuited. Of course, the role of magnesium oxide powder in the heating tube is undeniable, but the next non-modified magnesium oxide powder will absorb moisture in the air and then short-circuit the heating tube. It is not always the case that the two leads of a single-head heating tube are short-circuited. Now Manager Sun of Yancheng Songtai is communicating with technicians-the reason for the short circuit of the aperture interval:
(1) The distance between the defective sealing silica gel and the first circle screw at the root of the lead wire is too close, and the manufacturing technology occurs at this time.
(2) The excessive resistivity of the lead wire with FeCrAl is caused by the temperature of the lead wire.
(3) The distance between the two holes through the lead wire is too close.
(4) The orientation 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 forming a short circuit with the extra voltage of the two lead wires.
(6) When in use, the aperture of the mold hole is horn-shaped. This is because of the shortcomings of the module drilling technology, which affects the heat conduction.
(7) The nozzle of the nozzle presents the appearance of powdery pine at the end of the lead wire, which then affects the heat conduction and air breakdown.
According to the above explanation and analysis, different characteristics can be formed more intuitively through the appearance, and the reason for the short circuit of the aperture interval can be analyzed. It can better help us determine the cause of the short circuit and repair it in a more suitable way.
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