The heating wire is usually used in an open type household electric furnace, which is often called an electric furnace wire, and the application principle is as shown in the figure (application diagram of the electric heating wire). The bare spiral electric heating wire is embedded in the furnace cavity of the refractory ceramic, and the two ends are taken out from the bottom of the furnace through the small holes of the electric furnace, and the insulating porcelain tube is sleeved at the end where the heating wire is connected with the power line.
1, the characteristics of electric furnace wire
Electric wire application tray drawing The heating wire is usually used in an open type household electric furnace, which is often called an electric furnace wire. The application principle is shown in the figure (the application screen of the heating wire). The bare spiral electric heating wire is embedded in the furnace cavity of the refractory ceramic, and the two ends are taken out from the bottom of the furnace through the small holes of the electric furnace, and the insulating porcelain tube is sleeved at the end where the heating wire is connected with the power line. In this way, as long as the electric furnace inputs a 220V power supply from the power line, the exposed electric furnace wire is heated and burned in a cherry red color, generating a temperature of about 800 to 850 °C.
2. Structural features of the electric heating tube in the electric kettle
| Power (W) | Electric wire direct (mm) | Electric heating wire spiral outer diameter (mm) | Normal temperature resistance value (Ω) |
| 300 | 0.35 | 3.7 | 150.6 |
| 600 | 0.50 | 4.5 | 75.3 |
| 800 | 0.60 | 5.2 | 56.4 |
| 1000 | 0.60 | 5.3 | 45.2 |
| 1200 | 0.70 | 5.4 | 37.8 |
| 1500 | 0.80 | 5.6 | 30.0 |
| 2000 | 0.90 | 5.8 | 22.6 |
| 3000 | 1.20 | 6.9 | 15.1 |
The electric heating pipe is a special electric heating wire component on the electric kettle, and the outer shape is as shown in the figure (the main parameters of the OCR25Al5 type iron-alloyed aluminum electric wire used in the household electric furnace). It is filled with a spiral heating wire in a circular copper tube or a molybdenum tube, and then filled with a magnesium oxide powder material having good insulating properties and thermal conductivity. After ensuring reliable insulation between the heating wire and the metal pipe, the metal pipe is rolled by a shrinking machine to compact the magnesium powder in the pipe, and the copper screw electrode connected to the heating wire at both ends of the pipe is also sealed.
The electric power of commonly used electric heating pipes is 600W, 800W, 1000W, 1500W, 2000W and other specifications.
When using the electric heating tube, first put an insulating rubber pad on each of the two copper screws on the two ends, let the screws pass through the mounting hole of the kettle wall from the inside to the outside, and then put a rubber pad on each of the two copper screws, and then The nut is tightened tightly, and the electric heating tube is tightly mounted by the double rubber pad sandwiching the kettle wall, and is insulated from the kettle wall, and the sealing hole does not leak. Adding 220V voltage to the two electrodes, the electric heating tube generates heat to heat the water in the kettle, and the cold water is boiled into boiling water.
3. The electric heating plate is a special heating wire component for the rice cooker
Electric heating plate application structure The structure is shown in the figure (the application structure of the electric heating plate), which is composed of a cast aluminum disc, a tubular wire, a ceramic mixed filling material, electrode pins at both ends of the heating wire, and support screw holes. The annular electric heating tube is first cast into an aluminum alloy disc, and then the disc body is further processed to make the surface smooth. The cast aluminum disc has good thermal conductivity and high mechanical strength. The disc surface is spherical and can match the bottom surface of the aluminum pan of the rice cooker. The front side of the entire electric heating plate is shown in the figure (electrical heating plate application structure). A circular hole for mounting the magnetic steel is opened in the middle of the cast anchor disc.
When a 220V power supply is applied to the two electrode pins of the electric heating plate, the heating wire is heated, and the heat is transferred to the aluminum pan of the rice cooker through the cast aluminum disc for cooking.
The electric power of common electric heating discs is 350W, 500W, 650W, 900W, 1250W, 1600W, 2000W and other specifications.
Here is a brief introduction and examples of the use of electric heating wire products in their lives. Electric heating wire is used in different fields. We can learn more and master the material and structural principle of electric heating wire to learn more about it. Customers are recommended to read "What is the working principle of high temperature electric heating wire", "Which electric heating wire should be selected in the water vapor environment", "How to use electric heating wire is most suitable", "High temperature electric heating wire parameter description", "Iron chromium aluminum A comparison of silk and nickel-chromium electric wire brittleness, etc., or you can go to the technical news version to find out more about the expertise of electric heating components. At the same time, you can also inquire more detailed heating wire products or order related products, service hotline (Manager Wang).
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