Aluminum shell heater installation principle and advantage analysis
Principle of electromagnetic induction heating of aluminum housings
The working principle of electromagnetic induction heating is based on Faraday's law of electromagnetic induction. When an alternating current passes through an induction coil, an alternating magnetic field is generated. When this alternating magnetic field acts on the aluminum shell, because aluminum is a kind of conductive metal, the magnetic field will cut the electron movement orbit of aluminum atoms inside the aluminum shell, so that the free electrons inside the aluminum shell are directed to move by the action of Lorentz force, thus generating eddy current inside the aluminum shell. Eddy current flow inside the aluminum shell, due to the existence of the aluminum shell itself resistance, the current through the resistance will occur when the energy loss, the loss of energy will be converted into heat, so that the temperature of the aluminum shell to rise, so as to achieve the purpose of heating.
Benefits of electromagnetic induction heating aluminum shell:
1. High efficiency and energy saving
High energy conversion efficiency, electrical energy is directly converted into heat energy inside the aluminum shell, reducing the loss of heat transfer in the traditional heating method. Compared with the resistance wire heating and other ways, it can save a lot of electricity, energy saving effect is remarkable. For example, in some industrial heating applications, it can effectively reduce energy costs.
Fast heating speed, the alternating magnetic field can quickly generate eddy currents in the aluminum shell and make the temperature rise, can reach the required heating temperature in a short period of time, improve production efficiency.
2. Good heating uniformity
The eddy current generated by the alternating magnetic field in the aluminum shell is uniformly distributed, so that the whole shell can be uniformly heated, this uniformity of the heating characteristics of some of the higher temperature uniformity requirements of the processing technology is very important to ensure the quality and performance of the aluminum shell products, to reduce the deformation due to uneven temperature, stress concentration and other issues.
3.Non-contact heating
In the electromagnetic induction heating process, there is no direct physical contact between the induction wire garden and the aluminum shell, and no friction and wear. This not only reduces. This not only reduces the maintenance cost and downtime of the equipment, but also avoids the problems of scratches and damages on the surface of the aluminum shell that may be caused by contact heating, which is conducive to maintaining the appearance quality of the aluminum shell.
4.Easy to control
The heating temperature and heating speed of the aluminum shell can be precisely controlled by adjusting the frequency and voltage of the alternating current and other parameters, and this precise control 4 ability makes the heating process more stable and reliable, and can meet the strict requirements of different processes on the heating temperature. And with high degree of automation, it can be matched with modern automatic production system to realize intelligent production.
5. Environmental protection and safety
Electromagnetic induction heating process does not produce open flames, will not be like the traditional gas heating or fuel oil heating that produces waste gas, waste residue and other pollutants, more friendly to the environment. At the same time, because there is no open flame, also reduces the risk of fire and other safety accidents, to protect the production site personnel and equipment safety.
6. Long service life
Induction wire garden is usually made of high temperature, corrosion-resistant materials, and in normal use, the wire garden itself will not heat, will not be directly affected by high temperatures, so the service life is longer, compared to traditional heating elements such as resistance wire is easy to high temperature environment aging, damage, the need for frequent replacement.