cartridge heater also known as single-ended electric heating pipes and cartridge electric heating pipes (Cartridge Heaters), are a type of electric heating pipes (tubular electric heating elements). In the late 1990s, due to the wide application of electric heating pipes in China, there are many shapes of electric heating pipes. , in southern China, the electric heating tube used in the mold with one outlet is called a single-ended electric heating tube or a single-ended electric heating tube, which is very vivid. In foreign countries, it is called a cartridge heater, which is also an image name, because the cartridge case is cylindrical, and one end is blocked. It is called a single-head electric heating tube in China.
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Structure of cartridge heater:
The typical structure of cartridge heater (the most popular structure) is the same as that of an electric heating tube, and generally consists of 5 parts: insulator, sealing material, lead-out rod, filler, heating wire, metal sheath, and terminal. The spiral heating wire and the lead-out help are located in the center of the metal sheath. The manufacturing process is to insert the spiral heating wire into the seamless steel tube, copper tube or aluminum tube, and the gap is evenly filled by a multi-tube filling machine. Thermally conductive oxidizing medium, such as crystalline magnesium oxide powder (alumina or clean quartz sand can also be used). Then use a tube shrinking machine to reduce the diameter of the tube to make the oxide medium dense (density above 3.3g/cm3), to ensure that the heating wire is isolated from the air, and the center position does not deviate and touch the tube wall.
Appliacation of cartridge heater:
1. Mold heating has been accepted by a wide range of customers in modern industrial applications.
2, in the plastic machinery heating system.
3. Pharmaceutical production line.
4. Laboratory heat treatment test.
5. Chemical industry, etc.
specification
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