The problem of uneven heating of the electric heating tube

The heat in the electric heating tube is mainly realized by the electric resistance wire, and the electric resistance wire is spiral. When the spacing is different, the heating is different, the spacing is close, and the heat is high. vice versa. However, the quality of the process will lead to uneven heating of the electric heating tube. I have organized the following:

1, the quality of the heating wire is not good, resulting in uneven spacing of the wire after compression will directly lead to uneven heating of the electric heating tube, so manufacturers must purchase high-quality electric heating wire to create a good quality good quality brand.

2, as far as possible, the resistance wire is evenly distributed during processing. Especially when winding the wire, it must be wrapped around. Otherwise, the fever will not be uniform.

3. Fill the electric heating tube with a sufficient amount of magnesium powder to make the filling in the tube dense, and then compress it with a tube shrinking machine.