Heating plate: Converts electrical energy into thermal energy to heat an object. It is a form of electrical energy utilization. Compared with the general fuel heating, electric heating can obtain a higher temperature (such as arc heating, the temperature can be more than 3000 ℃), easy to achieve automatic temperature control and remote control, car electric heating cup.
Can be heated object to maintain a certain temperature distribution as needed. Electric heating can be heated directly inside the object to be heated, thus high thermal efficiency, fast heating speed, and according to the heating process requirements, to achieve overall uniform heating or local heating (including surface heating), easy to achieve vacuum heating and control atmosphere heating. In the process of electric heating, the generated exhaust gas, residues and soot are less, which can keep the heated object clean and not pollute the environment. Therefore, electric heating is widely used in the fields of production, research and testing. Especially in the manufacturing of single crystal and transistor, mechanical parts and surface quenching, melting of iron alloy and manufacturing of artificial graphite, etc., electric heating is used.
Principle of operation: High frequency high current flows to the heating coil (usually made of purple copper tube) which is wound into a ring or other shape. As a result, a strong magnetic beam with instantaneous change of polarity is generated in the coil, and the heated objects such as metals are placed in the coil, the magnetic beam will pass through the whole heated object, and a large eddy current will be generated inside the heated object in the opposite direction of the heating current. Since there is resistance in the heated object, a lot of Joule heat is generated, which causes the temperature of the object itself to rise rapidly. The purpose of heating all metal materials is achieved.
Post time: Apr-20-2023