What are the precautions for the installation and use of single-ended heating tubes?

1. Precautions for installation
Reserved installation holes: Reserve installation holes on the mold according to the size of the single-ended heating tube, or customize the outer diameter of the heating tube according to the size of the installation hole.
When processing the installation hole, try to reduce the gap between the heating tube and the installation hole. The single-side gap is recommended to be within 0.05mm to improve the heating efficiency and service life.
Design of installation holes: The depth of the installation hole should be designed according to the length of the heating part of the heating tube to avoid the hole being too shallow to expose the heating part of the heating tube or the hole being too deep to cause the sealing of the heating tube and the wire part to fall into a higher use environment.
It is recommended that the installation hole of the heating tube be reamed to improve the fit between the heating tube and the metal.
Preparation before installation: Make sure that the surface of the heating tube is not contaminated with foreign matter and oil stains. The oil residue during mechanical processing will affect the heat conduction of the heating tube and may cause damage to the heating tube.
Check whether the heating tube is intact and avoid using cracked or damaged heating tubes.
Fixed heating tube: Unfixed heating tubes are easy to move back and forth in the mold hole, which may cause the heating area to be exposed to the air or the lead wire to enter the high-temperature area, causing damage to the heating tube, electric shock, fire and other accidents. You can use top screws or fixing plates to fix the heating tube firmly.

2. Precautions for use
Power supply voltage: The operating voltage should not exceed 10% of the rated voltage marked on the heating tube, otherwise it will cause the power of the heating tube to increase, and abnormally high temperature may cause damage to the heating tube or fire and other accidents.
Heating medium: The heating tube should be completely immersed in the heating medium to avoid damage to the heating tube due to slow heat dissipation and exceeding the allowable heating temperature. The lead-out part of the wiring should be exposed to the insulation layer of the heater or outside the heater to avoid damage due to overheating.
Temperature control: Turn the temperature control switch to the appropriate temperature as needed to avoid excessively high or low temperatures affecting the operating effect or equipment life. After use, the temperature control switch should be turned to the lowest temperature in time and kept for a period of time to let the heating tube cool down.
Regular inspection: Regularly check whether the power cord and casing of the heating tube are damaged. If damaged, they should be repaired or replaced in time.
After the heating tube is used for a long time, if thick scale and oil stains accumulate on the surface, they should be removed regularly to improve heating efficiency and service life.
Safe operation: When using the heating tube, pay attention to the safe use of the power supply to prevent the risk of electric shock.
The heating tube must not be disassembled privately to avoid safety accidents.
It is forbidden to touch the heating tube with your hands during use, especially the high-temperature heating tube. Even if you touch it with protective gloves, there is still a risk of burns.
Environmental requirements: The heating tube usually needs to be used in a well-ventilated environment to avoid dust accumulation or harmful gases affecting the equipment.
When stored and used in a high-humidity environment, the insulation resistance will decrease, but after power is turned on, the moisture in the heating tube evaporates and the insulation performance will gradually recover. At this time, it is recommended to start with a low voltage.