Introduction
Immersion preheating furnace is special equipment used for preheating and tempering of castings and weldments. Compared with traditional heating processes, immersion preheating furnace adopts direct immersion method to preheat products and can control temperature parameters accurately. It has the advantages of energy saving and emission reduction, as well as an excellent heating process for metallurgical heat treatment and surface treatment.
Working Principle
Immersion preheating furnace is composed of electric heating elements, charging and discharging devices, water cooling system, display control system and other components. In the normal operation of the furnace, the electric heating element forms a certain temperature field in a short time, and the object enters the furnace to absorb the heat. After the preset heating time is completed, the preheated object is discharged, and the impurities and oxides on the surface of the preheated object are cleaned in an efficient and reliable way.
Advantages
Immersion preheating furnace has the advantages of uniform heating, quick temperature rise and flat temperature field, so that the oxidation and scaling of steel can be avoided to a certain extent, and the cracking of material under thermal shock can be avoided. In addition, the furnace features low noise, stable performance, high efficiency and low energy consumption.
Application Field
Immersion preheating furnace is widely used in oil field heat treatment, surface hardening, heat treatment of steel tubing and pipe, and oxide removal of steel products. It is mainly used in the heat treatment of steel pipe and bar before quenching.
Conclusion
Immersion preheating furnace is a special equipment to preheat and temper castings and weldments. It has excellent heating process for metallurgical heat treatment and surface treatment with the advantages of energy saving, emission reduction, uniform heating, quick temperature rise and flat temperature field, low noise, stable performance, high efficiency and low energy consumption. It is widely used in the heat treatment of steel pipe and bar before quenching.
