To measure the quality of electric heating tubes, high voltage must be considered

To measure the quality of electric heating tubes, high voltage must be considered

At present, the electric heating element type electric heating tubes we produce are relatively popular in terms of usage and usage environment. However, the configuration and installation of electric heating tubes on electric heating equipment have a significant impact on the temperature uniformity of the equipment. Therefore, what aspects should be paid attention to during installation?

When using a heat sink electric heating tube, the first step is to ensure a uniform temperature distribution in the furnace. Aluminum products should be selected as the support for the heating tube in the medium temperature furnace. High temperature furnaces with a furnace temperature above 1000 can use purer aluminum products, while low temperature furnaces can use general clay products.

2. There are generally three installation methods for the installation of heat sink electric heating pipes, namely wire shaped heating pipe corrugated type, spiral shaped heating pipe corrugated type, and corrugated type. The radiation shielding between the heat sink electric heating pipes and the furnace wall support brick should be minimized to ensure that the installation position of the heat sink electric heating pipe can ensure heat conduction to the workpiece, and the workpiece cannot be locally overheated.

To measure the quality of electric heating tubes, it is necessary to consider the main indicators such as high pressure, leakage, reliability life, and heating uniformity. However, many product design technicians from manufacturers have insufficient understanding of electric heating tubes, and their actual technical requirements and future performance are not yet very clear. Therefore, the standards for electric heating tubes, coupled with some companies blindly following the trend and others blindly following the trend, many manufacturers in China have high requirements for electric heating tubes.

When the insulation resistance reaches 1000 megawatts and the high voltage reaches 2000 volts, a dry burning test is required, which far exceeds UL and IEC standards. The requirements for ceramic electric heating tubes are much stricter than those in the market, and they are also very strict. However, if the standard requirements are too high, it does not mean it is reasonable. Due to the higher standards required, there is a greater need for special designs, processes, and materials to complete the production of heating tubes, resulting in high material costs.

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