Brief Introduction to the Structure of Buffer Modulated Wave Aluminum Melting Furnace

The buffer modulated wave aluminum melting furnace is an induction crucible self-heating electric furnace, which is mainly used for melting and heat preservation of aluminum alloy solution. It is composed of a shell, a furnace lining, a heating element, a cooling fan, a crucible, a baffle, and a temperature control system.

1. Furnace shell: It is welded and assembled by section steel and gold plate. The shell wall is made of aluminum alloy plate, and the furnace bottom is made of stainless steel section steel, aluminum alloy plate and stainless steel plate. The shell ensures sufficient strength and achieves a beautiful appearance. The square tube is connected with the bottom bracket steel to achieve the purpose of supporting the furnace bottom. Other parts are appropriately strengthened. The furnace panel adopts a cast panel to ensure that it will not be deformed for long-term use. The integral furnace shell has the function of preventing magnetic flux leakage and meets the national electromagnetic radiation safety standards.

2. Furnace lining: adopts a three-layer thermal insulation structure, in which the inner refractory layer of the furnace lining is made of high-aluminum all-fiber vacuum forming the overall furnace lining, which is made according to the crucible dimensions and filled with nano-powder. The heat resistance is 1260℃, and the outer insulation layer is made of high-quality silicon The acid aluminum nanofiber needle-punched blanket achieves the effect of light-weight, heat-insulating and energy-saving, and is easy to move. There is an aluminum leakage port and an aluminum leakage alarm electrode at the bottom, and an integral heavy crucible base is placed in the middle.

3. High-frequency power cord: High-quality high-temperature high-frequency electromagnetic wire is used, and the number of turns is designed according to the power to be wound on the outside of the insulation layer, which has the advantages of good heat dissipation and convenient maintenance and replacement.

4. Cooling fan: The special cooling fan for electromagnetic induction furnace is evenly distributed around the shell, which can effectively prevent the high temperature of the high-temperature electromagnetic wire from being too high, and timely cool the high-temperature electromagnetic wire to improve the service life of the high-temperature electromagnetic wire.

5. Crucible: Graphite crucible is used, which has the advantages of good thermal conductivity and long service life, achieving the effect of energy saving and reducing user production costs.

6. The deflector is installed on the top of the furnace panel, and the nanofiber seal is filled between the lower end and the upper mouth of the crucible to prevent molten aluminum from falling into the furnace during casting and has the effect of heat preservation. The material is heat-resistant cast iron.

7. Tilting mechanism (optional): The tilting action is controlled by a reducer, the operation is stable and safe, and the dumping action is consistent and easy to operate.

8. Temperature control system: The temperature control cabinet is an independent combined front and rear single-door control cabinet; adopts variable frequency inverter rectification technology, uses variable frequency electromagnetic induction to heat the crucible, and the temperature control is intelligent dual temperature dual control, main control aluminum liquid temperature, auxiliary control Magnet wire temperature. The protective sleeve for measuring the temperature of molten aluminum is made of silicon nitride, which has good thermal conductivity and accurate temperature control. The executive components are mainly composed of high-voltage resonant capacitors, filter capacitors, film capacitors, high-performance single-chip controllers, dedicated drive boards, voltage and current Hall, etc. It has the functions of phase loss protection, over current protection, over temperature protection, coil short circuit protection, etc., full-bridge series harmonic circuit topology, strong anti-interference ability.

The temperature of the electric furnace is controlled by the thermocouple inserted into the molten aluminum and the furnace as the primary instrument, and the temperature is automatically controlled by the secondary temperature control instrument on the temperature control cabinet.

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