Medium frequency furnace tilting methods

Tilting Methods of Medium-Frequency Electric Furnaces

In industrial production, medium-frequency electric furnaces are key equipment for melting metals and alloys. To facilitate the discharge of molten materials and molten steel (copper, aluminum, etc.), the furnace needs to be equipped with a tilting function. The rationality of the tilting method design for medium-frequency electric furnaces directly affects the technological process, production efficiency, and safety.

What Are the Tilting Methods of Medium-Frequency Electric Furnaces?

1. Hydraulic Tilting

Hydraulic tilting is a currently widely used method. The system consists of a hydraulic cylinder, a hydraulic station, and a control system. The hydraulic cylinder pushes the base to make the entire medium-frequency electric furnace body rotate around the hinge center, thereby realizing the tilting action.

• Advantages: Stable movement, flexible rotation, suitable for large-scale electric furnaces.
• Disadvantages: High investment and maintenance costs for the hydraulic system, and a certain risk of leakage.

2. Electric Screw Tilting

This is a tilting method based on the mechanical transmission principle. The motor drives the screw to rotate through a reducer, and the screw then pushes the connecting rod through a nut to make the electric furnace body rotate.

• Compared with the hydraulic system: It has a simpler structure and lower maintenance costs.
• Disadvantages: The movement is relatively unsteady, and it is generally suitable for small and medium-sized electric furnaces.

3. Electric Chain Tilting

The system is composed of a drive motor, a sprocket, a connecting rod, and a control system. The motor drives the sprocket to rotate, and the sprocket then pushes the electric furnace to tilt through the connecting rod.

• Advantages: Small space occupation, high degree of automation, flexible and controllable movement, suitable for electric furnaces of various specifications.
• Disadvantages: The chain is prone to wear and needs to be replaced regularly.

4. Traverse-Lifting Tilting

Traverse-lifting tilting is a special tilting method developed on the basis of fixed electric furnaces. Through the traverse track and the lifting hydraulic cylinder, the crucible can be slowly moved horizontally to the tap hole position, and then lifted vertically to an appropriate height to slowly pour out the liquid metal in the molten pool.

• Advantages: The overall movement is stable.
• Disadvantages: High system investment and large floor space. It is mainly used in large-scale electric furnaces with large production capacity.

5. Cylinder Reversing Tilting

The crucible of the entire electric furnace is designed in a cylindrical shape. The whole machine performs a 180° rotational tilting action around a fixed axis through a hydraulic push rod and a hinge.

• Advantages: Simple structure and fast movement.
• Disadvantages: It requires a special crucible shape and has high requirements for the design of the electric furnace. It is generally used in small and medium-sized casting electric furnaces.

Different tilting methods have their own advantages and disadvantages. Generally, electric furnace manufacturers will reasonably design and select the tilting method of the medium-frequency electric furnace according to the actual production needs and on-site conditions to enhance flexibility and reliability.