Electric heating pipes have different shortcomings due to different raw materials and production processes. The tube of the electric heating tube presents corrosion, cracking, failure and other reasons are also greatly present in the shopping mall, the end of the user is confused, ceramic heating element how to find and deal with it very well may be very good to eradicate such an operation seizure, we need to carry out the onset of these causes for analysis.
The reasons for the corrosion and cracking and failure of the detailed electric heating pipe are as follows:
First, high temperature hydrogen corrosion
High-temperature hydrogen corrosion is the chemical reaction of hydrogen and unstable carbides that disperse and invade steel under high temperature and high pressure conditions to generate methane bubbles. There are two ways of high-temperature hydrogen corrosion in the equipment: one is the decarburization of the surface, and the decarburization of the surface does not occur cracks; The second is internal decarburization, because hydrogen atoms invade and disperse in the steel to generate methane, and methane collects in the vicinity of intergranular holes and inclusions, constituting a higher partial stress, so that the steel cracks and bulges, and its mechanical properties are significantly deteriorated.
Second, the electric heating pipe empty heat burst tube:
(1) The quality of the 304 pipe is in doubt.
(2) There are doubts about the quality of magnesium oxide.
(3) There is a leakage problem in the electric heating pipe.
(4) The depiction of the electric heating tube is questionable, the power per meter is too large, under normal circumstances, the dry burning heating tube does 1KW per meter, if the pipe diameter is added or fins are added, there is fan circulation and temperature control, 1.5KW per meter.
(5) The stainless steel electric heating tube continues to operate, and the silicone hair hot wire has no temperature control and fan circulation.
Third, the common reason why the electric heating tube does not heat up:
(1) The electric heating tube, especially the industrial electric heating tube, is convenient for control in the process of use, so an adjustable temperature control is installed on the electric heating tube, which is convenient for adjusting the temperature. Such an electric heating tube does not heat up, that is, the thermostat contacts are poorly contacted or burned and melted off.
(2) If the electric heating tube does not work, that is, it does not generate heat, check the electric heating tube and find that the lead or lead of the electric heating tube has fallen.
(3) After all the sweeps, the electric heating tube still does not heat, then the electric heating pipe is now broken.
