Causes of cartridge heater short circuit

(1) The location of the heating area has moved to the lead-out port and is exposed in the air.

(2) Excessive temperature is sufficient and necessary to form a short circuit with the voltage of the two lead wires at the same time.

(3) The nozzle has a powdery appearance at the end of the lead wire, which affects heat conduction and air breakdown.

(4) The distance between the defective sealing silicone and the first ring screw at the root of the lead wire is really too close, and the manufacturing technology fails at this time.

(5) When in use, the aperture of the production model hole has a trumpet shape. This is due to the lack of plate drilling technology, which affects heat conduction.

(6) If iron-chromium-aluminum is used as the lead-out wire, the excessive resistivity will increase the temperature of the lead-out wire and cause accidents.

(7) The distance between the two holes for the lead-out is really too close.

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