How to choose a metal tempering furnace?

When choosing a metal tempering furnace, there are many aspects to pay attention to. Let’s take a detailed look below!

Customized industrial high-temperature box type electric furnace (click on the picture to view product details)

1. Workpiece material: Different metal materials require different tempering temperatures and cooling methods. The tempering temperature of carbon steel is usually between 500 ℃ and 650 ℃, while the tempering temperature of stainless steel may be higher. For some special alloys, their specific tempering process requirements also need to be considered.
2. Workpiece size and shape: For large or complex shaped workpieces, to ensure uniform heating and cooling, a suitable furnace structure needs to be selected. The trolley type tempering furnace is suitable for large workpieces, the well type tempering furnace is suitable for long axis parts, and for some small precision parts, the box type tempering furnace may be more suitable.
3. Production batch: During large-scale production, continuous tempering furnaces or large trolley tempering furnaces have high production efficiency and can meet production capacity requirements; For small batch or laboratory use, a box type tempering furnace can be chosen for flexible operation and lower cost.
4. Temperature control accuracy: High precision temperature control can improve the stability of tempering quality. Precision machined metal workpieces have strict requirements for tempering temperature, and tempering furnaces with high-precision temperature control systems should be selected. For example, tempering furnaces using high-precision digital PID self-tuning instruments can achieve a temperature control accuracy of ± 1 ℃.
5. Furnace structure and insulation performance: Choosing a furnace structure with good sealing and insulation performance can reduce heat loss and improve energy utilization efficiency. A tempering furnace with a full fiber lining structure has good insulation performance, light weight, and fast heating; The use of high-performance materials such as ceramic fibers and silicon carbide as furnace lining can greatly improve the insulation performance and corrosion resistance of the furnace body.
6. Cooling method: Choose the appropriate cooling method based on the workpiece material and process requirements, such as air cooling, water cooling, oil cooling, etc. Some tempering processes have strict requirements for cooling rate, such as certain alloy steels that require rapid cooling to obtain specific microstructure and properties. In this case, it is necessary to choose a tempering furnace with corresponding cooling capacity.
7. Automation level: The tempering furnace with intelligent and automated control can automatically adjust heating and cooling parameters, optimize the process flow, and improve production efficiency and product quality. Remote monitoring and fault diagnosis can also be realized through Internet technology, which is convenient for management and maintenance.
8. Environmental Protection and Energy Consumption: Prioritize the selection of tempering furnaces with low energy consumption and good environmental performance, while meeting production requirements. If energy-saving measures such as using efficient insulation materials and optimizing heating systems are adopted for tempering furnaces, production costs can be reduced and the impact on the environment can be minimized.
9. After sales service: Choose manufacturers with good reputation and comprehensive after-sales service, so that in case of any problems encountered during the use of the equipment, technical support and maintenance services can be obtained in a timely manner to ensure the normal operation of the equipment.

Large scale 1700 degree customized atmosphere furnace (click on the picture to view product details)

In summary, when choosing a metal tempering furnace, one should consider the material, shape, output, temperature control accuracy, etc. of the workpiece. It is recommended to communicate with relevant technical personnel before purchasing in order to select the tempering furnace that suits one’s needs!Click to learn more Muffle Furnaces! Or click on online customer service to learn more about product information!