Automatic tempering furnace is an important heat treatment equipment in metal processing, mainly used to reduce the hardness of metal materials, increase toughness, eliminate internal stress, etc. Here is the specific usage method of it in metal processing:

1、 Preparation work before operation

Equipment inspection

Before starting the tempering furnace, a comprehensive inspection must be conducted. Check if the furnace door is tightly closed to prevent heat leakage and external air from entering. At the same time, check whether key components such as burners, thermocouples, and temperature controllers are working properly, and ensure that all connection parts (such as gas pipelines and electrical circuits) are not loose or damaged.

Material Preparation

Ensure that the surface of the metal material to be processed is clean, free from oil stains, rust, or other impurities. These impurities may burn or decompose at high temperatures, producing harmful gases that affect the atmosphere inside the furnace and the heat treatment effect of the materials. According to the type and size of materials, arrange the placement of the furnace reasonably to ensure even distribution of heat.

Parameter Settings

According to the process requirements, set the temperature, time, and atmosphere parameters of the tempering furnace. Different materials and processes may require different temperature curves and insulation times. Ensure that the temperature controller and combustion system can operate according to the set parameters, and conduct a simulation run before starting to check whether the parameters are accurate.

2、 Precautions during operation

Monitoring equipment operation

During the tempering process, it is necessary to monitor the operating status of the equipment in real time to ensure that parameters such as temperature, time, and atmosphere meet the set requirements. By using temperature sensors and control systems, the heating power can be adjusted in a timely manner to ensure uniform temperature inside the furnace.

Heating and insulation

After heating the metal material to the specified temperature, maintain it at that temperature for a period of time (holding time) to ensure that the lattice structure inside the material changes, thereby eliminating internal stress and improving performance. The length of insulation time depends on the type, thickness, and required properties of the material.

cooling control

After insulation is completed, cool according to the process requirements. The cooling rate has a significant impact on the final performance of materials, and slow cooling is usually required to avoid the generation of new internal stresses. Some automatic tempering furnaces can control the cooling process by adjusting the speed of the cooling medium (such as air or water).

3、 Post operation processing

Equipment maintenance

After each use, the tempering furnace should be cleaned and maintained, and the heating elements, furnace door seals, and other components should be checked for damage. Regularly clean the residue inside the furnace to prevent carbon buildup or impurities from affecting the next use.

record data

Record the temperature, time, cooling rate, and other parameters of each tempering process for subsequent analysis and optimization. This is very important for improving product quality and consistency.

4、 Safety precautions

Prevent burns

During the operation of the tempering furnace, the temperature is high. Operators should wear protective equipment such as gloves and goggles to avoid contact with high-temperature components.

Prevent explosion

Ensure a stable atmosphere inside the furnace and avoid the accumulation of flammable gases. Some tempering furnaces are equipped with exhaust chimneys to release excess gas and prevent excessive internal pressure.

alarm system

This reheating furnace is usually equipped with an alarm and warning indicator light, which will automatically sound an alarm when the temperature exceeds the set range. Operators should be familiar with the functions of the alarm system and take timely measures when an alarm occurs.

In short, automatic tempering furnaces play an important role in metal processing. By proper operation and maintenance, the performance and quality of metal materials can be effectively improved.