Foundry melting electric furnace--medium frequency furnace

Foundry melting electric furnace--medium frequency furnace

Medium frequency electric furnaces have significant advantages in the field of metal material melting. It can quickly heat metals to their melting point, achieving efficient melting. Compared to traditional gas melting methods, medium frequency electric furnaces have lower energy consumption, are more environmentally friendly, and are easier to operate. Therefore, it is widely used in melting non-ferrous metals such as copper, aluminum, and zinc to produce high-quality castings. In addition, medium frequency electric furnaces also play an important role in the casting industry and are regarded as standard equipment for casting and melting, used to manufacture castings of various shapes, such as components in the automotive, mechanical, and aerospace fields.

The basic components of a smelting electric furnace include an intermediate frequency power supply, a compensating capacitor box, and a smelting furnace. These components together form the core part of the smelting electric furnace, responsible for converting 50HZ AC power into intermediate frequency (above 300HZ to 20K HZ) power supply devices to achieve efficient smelting processes.

The intermediate frequency power supply is the power source of the smelting electric furnace, which converts electrical energy into intermediate frequency alternating current and provides necessary energy for the smelting process.

Compensation capacitors are used to compensate for reactive power in the circuit, improve power factor, and ensure the stability and efficiency of the melting process.

A melting furnace is a container for the melting process. According to different application requirements, melting furnaces can be divided into tipping melting furnaces, top out melting furnaces, and fixed melting furnaces. The tilting melting furnace can be further divided into mechanical tilting furnace, electric tilting furnace, and hydraulic tilting furnace according to the tilting method to meet different melting needs.

Smelting electric furnace is a device that uses electrical energy as a heat source to heat solid materials to their melting point and melt them. Its working principle is as follows:

1. Heating element: The electric furnace melting furnace is mainly composed of one or more resistance heating elements, usually using resistance wires or electrodes as heating elements. When current passes through a heating element, a large amount of thermal energy is generated due to the resistance effect.

2. Current conduction: Introduce current into the heating element through the power supply, forming a current loop inside the heating element. When current flows in the heating element, it generates resistance heat, causing the heating element to generate heat.

3. Thermal conduction: After the heating element generates heat, the thermal energy will be transferred to the solid material to be melted through thermal conduction, causing its temperature to rise.

4. Melting process: When the temperature of the solid material to be melted rises above its melting point, the material begins to melt into a liquid state.

5. Temperature control: Electric furnace melting furnaces are usually equipped with temperature control systems that can monitor and adjust the current and temperature of heating elements to ensure temperature control accuracy and stability during the melting process.