Electric heating tubes are operated in numerous machinery industry equipment, and some fundamental results will often be encountered in the process of utilization. Another big problem of the electric heating tube is that the heating area of the electric heating tube is unbalanced and uneven. The occurrence of such a situation will cause the object's heating area to be unable to be heated in a balanced manner, and the desired result will not be achieved.
1. The choice of resistance wire:
When it is not in production, we must first solve a very important step and choose a good quality resistance wire. The advantages and disadvantages of the resistance wire will directly affect the result of the electric heating tube when it is operated. The non-standard resistance wire may not be seen from the overview. However, it can be found through the efficiency during the operation that the materials selected are all low-quality materials, and the electrical conductivity cannot reach the result. Some heat generation is good, and some heat generation results are poor.
2. Uneven gap between resistance wires:
After selecting a good high-quality resistance wire, we will then proceed to the process of wire-cutting. That is, the resistance wire is stretched and entangled according to the design requirements. In this process, try to ensure that the gap between the resistance wires is even, and only after power on can the heating tube heat the object evenly. Otherwise, the temperature of the area with high density will be higher than the area with low density, this process is very important.
3. Improper filling of magnesium oxide powder:
It is known that the inner filling of the electric heating tube is magnesium oxide powder, and most factories now imitate the manual filling, which will cause the internal tightness to be not grasped when filling, and the heat of the too tight part will be slower, while the too loose part Fever is faster.
The problem of uneven heating of electric heating tube
If the heating in the electric heating tube is mainly realized by the resistance wire, the resistance wire is in a spiral shape. When the distance is not right, it will generate heat differently, the distance is close, and the heat is high. vice versa. However, the advantages and disadvantages of the process will also lead to uneven heating of the electric heating tube.
There are several main points, we organize them as follows:
1. The quality of the heating wire is not good, and the distance between the wires is uneven after being shortened. It will directly lead to uneven heating of the heating tube, so manufacturers must purchase high-quality heating wires. Only in this way can we create a brand with good morals and good quality.
2. During processing, try to make the resistance wire evenly distributed, especially when winding the wire, it must be wound well, otherwise the heat will not be uniform.
3. Fill the electric heating tube with enough magnesium powder to make the filling in the tube dense, and then use a tube shrinking machine to compress it.
