In the electric heater equipment, too many products are related to each other. This is actually the penetration of knowledge. It is often not a good product that can be produced by a graduate student. The current society and industry need people with multiple flowers to improve Good reading products develop better products. Today I talked with everyone about the latest discoveries of heating tubes and heating wires.
The electric heating tube, as its name implies, is a tubular electric heating element (electric heating tube) with a metal tube as a shell (including stainless steel and copper tubes), and spiral electric heating alloy wires (nickel-chromium, iron-chromium alloy) such as (electric heating wire or Resistance wire), the gap is filled and compacted with magnesia sand with good insulation and thermal conductivity. The two ends of the nozzle are sealed with silica gel, and the two ends are connected with lead rods or lead wires. The heating wire mentioned here and playing a very critical step is the heating wire. The heating of the heating wire determines the heating of the heating tube. Therefore, choosing the right heating wire plays a very important role in the design and production of the heating tube.
The resistance of the heating wire of the heating tube is selected according to the set power. The greater the power, the smaller the total resistance.
The resistivity of the heating wire has an appropriate range. If the resistivity is too large or too small, a very short or very long, very thin or very thick heating wire is needed. This makes it difficult to manufacture and use electric heating tubes of large and small power. . An important parameter of the heating wire is the surface power. If the resistivity is too large, the surface power will be large after a certain current is passed through. Therefore, for low-power electrical appliances, small diameter and small current are used, but the size of the current depends on the size of the resistance, and the length and diameter of the heating wire are calculated.
The use of electric heating belts for large industrial electric furnaces is to increase the surface area to ensure that the surface power does not exceed the standard. At the same time, in order to ensure high power, there must be a large enough current, so that the length, cross-sectional area and shape of each electric heating belt are comprehensively considered. Therefore, when designing the heating tube for the heating wire used in the heating tube, various factors such as power must be considered. In order to produce a qualified and durable electric heating tube.
