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  • How to use the electric heating tube correctly
    How to use electric heating tubes correctly The two types of electric heating tubes that are commonly used are dry-fired electric heating tubes and liquid electric heating tubes. Different types of electric heating tubes have different points of attention when using them. So how to use the electric heating tube correctly? Here is a brief introduction by Xiaolei Xiong. 1. Dry-fired electric heating tube The dry-fired electric heating tube is mainly divided into air electric heating tube and mold electric heating tube: when using the air electric heating tube, we must pay attention to temperature control, and use it in a windy environment. Because air has a hindering effect on heat conduction, the electric heating tube is prone to high surface temperature without temperature control. In severe cases, it will ...

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  • What are the working principles of electric heating coils
    What are the working principles of electric heating coils? First, the working principle of electric heating coils: High-frequency high-frequency large current flows to heating coils that are wound into a ring or other shapes. As a result, a strong magnetic beam that changes instantaneously is generated in the coil. When a heated object such as a metal is placed in the coil, the magnetic beam will penetrate the entire heated object, and the corresponding direction of the heating current inside the heated object will correspond Large eddy current. Because there is resistance in the heated object, a lot of Joule heat will be generated, which will cause the temperature of the object to rise rapidly. To achieve the purpose of heating all metal materials. Second, then electricity ...

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  • Reliability and life of electric heating coil
    The reliability and life of the electric heating coil are very much related to the type of the core. For example, the core of the main tube which is rolled into a network pipe with a metal mesh is self-filled and very sensitive to the presence of non-condensable gas. , So its reliability is poor. In contrast, axial channel heating coils are much more reliable. Reliability also includes predictability and reproducibility of performance. Multilayer network dies are worse in this regard. Its temperature difference has a great relationship with the tightness between the mesh layers, and it is difficult to ensure consistency in the process. And the sintering process of the core (sintered powder, mesh, fiber, etc.), the performance reproducibility is better. The life of the heating coil is mainly determined by ...

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  • Fixed installation of cast aluminum electric heating coil
    The cast aluminum electric heating coil is fixedly installed in the use of mechanical heating equipment. Some series of cast aluminum heating coils do not need to be fixed. They can be directly installed in the heating holes for heat transfer, such as mold heating tubes; The series needs to be strengthened and fixed in order to make it more stable to work properly, such as single-headed heating tube. Here we mainly discuss how to fix the heating tube and how to install it? We all know that fixing and installing the heating pipe is a subtle and indispensable link to ensure its normal and stable operation. Without this link, the heating pipe will collapse, the work will be unstable, and partial bare leakage will easily become a hidden danger of accidents. .

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  • Why is the resistance of the cast aluminum electric heating coil smaller?
    What is the reason why the resistance value of the cast aluminum electric heating coil becomes smaller? The cast aluminum electric heating coil uses a tubular electric heating element as a heating element, and the element is bent and formed into a mold to cast aluminum into various products. It can be closely attached to the body to be heated, with uniform heat generation, good thermal conductivity and long service life. This product is currently one of the ideal heaters at home and abroad. According to the user's needs, an insulation layer can be added on the outside of the heater. The thermal efficiency is higher and the electricity consumption can be saved by about 20%. Mainly used in plastic machinery, ovens, boilers, pipes and non-corrosive liquids to heat up the technical parameters of cast aluminum heating rings 1. Conditions of use: ambient temperature -20 ℃ ~ + 60 ℃; relative humidity <80%. 2...

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  • Application and precautions of cast aluminum electric heating coil
    Application and precautions of cast aluminum electric heating ring As the name suggests, cast aluminum electric heating ring is made of high-quality metal aluminum alloy as the raw material shell, and is formed by die casting to form an electric heater, and a tubular heating element is used as a heating element. After years of industry research by technicians of China Electric Heater Network, it has been molded into various shapes, such as round, right-angle, flat, and other special shapes. After careful processing, it is closely connected with the object being heated. Together. Cast aluminum heater is a kind of heater with high efficiency and uniform heat generation. It has a metal aluminum alloy with excellent thermal conductivity to ensure uniform surface temperature. The hot and cold points of the equipment are removed to make its service life more ...

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  • Cast aluminum electric heating coil _ 8 points to note when using electric heating pipe
    Cast aluminum electric heating coil _ pay attention to the use of electric heating pipe ... Cast aluminum electric heating coil manufacturers remind the electric heating pipe to pay attention to the use of matters: 1. Components are allowed to perform tasks under the following conditions: A. The absolute humidity of the air is not more than 95%, and there is no explosive or corrosive gas. B. The task voltage should be no more than 1.1 times the extra value, and the case should be ineffectively grounded. C. Insulation resistance ≥1MΩ Dielectric strength: 2KV / 1min. 2. The electric heating tube should be well positioned and fixed. The ineffective heating area must be completely immersed in liquid or metal solids. Empty burning is strictly prohibited. When scale or carbon deposits are found on the surface of the tube, it should be cleaned and reused in time to avoid heat dissipation and prolong the service life. 3.Yuan ...

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  • Performance and application of ceramic electric heating coil
    Performance and use of ceramic electric heating coils Performance and use of ceramic electric heating coils 1. One is to wire the alloy wire on a small ceramic block, and the outer packaging is made of stainless steel shell. Ceramic heating rings are widely used in plastic machinery and chemical fiber machinery. 2. Ceramic heater is a kind of heater with uniform heat distribution and good thermal conductivity of metal alloy, which can ensure uniform hot surface temperature and eliminate hot and cold points of equipment. Adding heat insulation equipment on the external cooling surface, sintering infrared on the internal cooling surface can save 30% of the power consumption 3. The ceramic heater is not made by the ordinary mica winding method, but by the ceramic strip threading method, so The power of the product is 0.5 to ...

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  • Advantages of ceramic electric heating coil
    Advantages of ceramic electric heating coils The requirements and applications of ceramic electric heating coils are becoming more and more widespread, but many users may not have a comprehensive understanding of ceramic heating coils. Let me give a brief introduction today: ceramic heating coils are made by casting alloy wire Radiation-heatable ceramics, popularly speaking, can be heated with a long distance; the other is to wire alloy wires in small ceramic boxes, and the outer cover is made of stainless steel. It is widely used in plastic machinery and chemical fiber machinery, which can only fit the heat conduction. Ceramic fiber belongs to refractory insulation material. It does not generate heat by itself, but provides heat insulation protection for heat. It is mainly embedded in ceramic fiber through pre-embedding (or post-processing) ...

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  • The use method and advantages of ceramic heating ring
    The use and advantages of ceramic heating coils There are many specifications of ceramic heating coils, which are basically made to manufacturers according to their own needs, including the diameter and height of the electric heating coil, and the shape is basically strip-shaped, not yet assembled For your own needs, do you want to install insulation cotton, install the insulation cotton into a circle as shown in the figure, and fix it with screws. Generally, there are ceramic cables, high temperature cables, screw cables, plug cables, etc. Simply connect the cable outlets after assembly, check whether the orientation and specifications of the device are consistent with the heater, and whether the operating voltage is common. The operating voltage must not exceed 10% of the rated value. The wiring part is placed outside the heating layer and insulation layer, and ...

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  • Electric heating coil resistance heating principle
    Electric heating coil resistance heating principle The electric heating coil uses the Joule effect of the amount of current to convert electromagnetic energy into energy to warm the block. The heating coil is generally divided into immediate resistance wire heating and immediate resistance wire heating. The operating voltage of the two switching power supplies is immediately added to the heated block. When the current flow expires, the electric heater ironing machine of the heated block itself becomes hot. The block that can be immediately heated by the resistance wire must be an electrical conductor, but has a higher resistance. Since the heat is generated in the heated block itself, it is classified as internal heating, and the thermal efficiency is very high. Immediate resistance wire heating needs to be made of professional aluminum alloy materials or non-metallic materials.

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  • Energy-saving improvement results of electric heating coils
    Results of energy-saving improvement of electric heating coils With China's economic reforms, traditional industrial products are undergoing various improvements. The heating coils are gradually improved from high energy consumption to energy-saving ones, which will adapt to international trends! Electric heating coils, as auxiliary heating equipment for injection molding machines, generally account for more than 20% of the energy consumption of the entire machine. Since 2013, many technology companies in the market have invested in research and development of energy-saving processing of heating coils, and basically launched two major energy-saving Heating loop factions: infrared energy-saving heating coil technology and electromagnetic energy-saving heating coil technology. The following is a brief introduction to two technical schools: electromagnetic energy-saving heating coil: the principle of electromagnetic heating is through the electronic circuit board components ...

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  • Difference between ceramic electric heating coil and mica heating coil
    Differences between ceramic electric heating coils and mica heating coils I. Overview of ceramic electric heating coils and stainless steel mica heating coils 1. The ceramic electric heating coils are not made by ordinary mica flexing, but by ceramic strip threading. The power of the product is 0.5 ~ 1.5 times higher than ordinary. 2. The stainless steel mica heating coil is made of high-quality nickel-chromium alloy heating wire as the heating element, and is wound with natural mica as the edge layer group. The outer layer is made of high-quality stainless steel as the conductive heating layer. The mica heating coil can be according to the needs of users. Machined rings, plates, and various shaped products. Second, the difference between the advantages and disadvantages 1, ceramic electric heating coils are flexible, curved into an arc, tile ...

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  • Advantages of ceramic electric heating coil
    Advantages of ceramic electric heating coils The requirements and applications of ceramic electric heating coils are becoming more and more widespread, but many users may not have a comprehensive understanding of ceramic heating coils. Today I will give a brief introduction: One kind of ceramic heating coil is the casting of alloy wire. Radiation-heatable ceramics, popularly speaking, can be heated with a long distance; the other is to wire alloy wires in small ceramic boxes, and the outer cover is made of stainless steel. It is widely used in plastic machinery and chemical fiber machinery, which can only fit the heat conduction. Ceramic fiber belongs to refractory insulation material. It does not generate heat by itself, but provides heat insulation protection for heat. It is mainly embedded in ceramic fiber through pre-embedding (or post-processing) ...

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