How to choose the right size cartridge heater for mold heating?

Cartridge electric heating tubes are widely used in mold heating, industrial electric furnace ovens and other industries. In great demand! How to choose the right electric heating tube? Here are two suggestions for you:

1. The selection of the installation hole size is closely related to the heat density of the cylindrical heating tube. Different heat densities produce different temperatures, and the degree of expansion of the protective cover varies greatly. Therefore, it is necessary to make a suitable mounting hole size and determine the diameter of the electric heating pipe.

2. For the heating tube, the heat of the heating tube is transferred to the heating medium at the fastest speed, which reduces the heat of the heating tube itself and makes it last longer. At the same time, the air also hinders the conduction of heat. If the gap between the heating tube and the die hole is too large, the heat of the heating tube cannot be transferred to the module in time, resulting in an excessively high internal temperature of the heating tube and affecting the service life of the heating tube. If there is no gap between the heating tube and the die hole, the heating tube is used It will swell later, and it is difficult to replace when damaged. Therefore, we recommend that the pipe diameter and bore diameter be as close as possible. And the gap is generally between 1mm and 2mm, which can quickly transfer the heating heat to the mold, reduce the heat of the heating tube itself, and prolong the service life of the heating tube.