Application of tempering furnace in mechanical manufacturing industry

The application of tempering furnaces in the mechanical manufacturing industry is extensive and critical, mainly reflected in improving the performance of metal materials, optimizing production processes, and ensuring product quality. The following is an introduction for you:

Improve the performance of metal materials
Eliminating residual stress: In mechanical manufacturing, many components generate significant residual stress after quenching, leading to increased brittleness and easy fracture in practical use. The tempering furnace can effectively eliminate these residual stresses by tempering at an appropriate temperature. For example, after quenching, the hardness of the gears in the reducer increases significantly, but the internal residual stress is high and the brittleness becomes stronger. After being placed in a tempering furnace and tempered at an appropriate temperature, the gears not only maintain high hardness to cope with friction and wear, but also have sufficient toughness to withstand alternating loads, greatly extending their service life.
Improving material organization structure: The tempering furnace can accurately control the tempering temperature and time according to the component material, pre-treatment process, and final usage requirements, achieving diverse tempering processes and thus improving the material organization structure. Special material shaft components, after high-temperature tempering in a reheating furnace, can refine grain size, optimize material structure, improve comprehensive mechanical properties, and meet the high-precision and high reliability requirements of mechanical manufacturing.
Adjusting hardness and toughness: Different mechanical components have different requirements for hardness and toughness. Tempering furnaces can adjust the hardness and toughness of metal materials by controlling the tempering temperature and time. For example, for some mechanical parts that need to withstand large impact loads, tempering treatment at lower temperatures can be used to improve the toughness of the material while ensuring a certain hardness; For some parts that require high hardness and wear resistance, higher temperature tempering treatment can be used to increase hardness while maintaining appropriate toughness.

Optimize production process
Improving the heat treatment process chain: In mechanical manufacturing, different processing steps have different requirements for component performance. As an important link in the heat treatment process chain, tempering furnaces can be used in conjunction with other heat treatment equipment (such as quenching furnaces, carburizing furnaces, etc.) to achieve a complete heat treatment process. For example, in the production process of gears, quenching treatment is first carried out to increase hardness, then tempering treatment is carried out through a tempering furnace to eliminate residual stress, adjust hardness and toughness, and finally precision machining is carried out to obtain gear products that meet performance requirements.
Realize diverse tempering processes: The tempering furnace can accurately control the tempering temperature and time based on component materials, pre-processing processes, and final usage requirements, achieving various tempering processes such as low-temperature tempering, medium temperature tempering, and high-temperature tempering. Low temperature tempering (150-250 ℃) can maintain high hardness and is suitable for cutting tools and measuring tools; Medium temperature tempering (350-500 ℃) can form tempered martensite, suitable for springs and molds; High temperature tempering (500-650 ℃) can form tempered martensite, which is suitable for mechanical parts such as shafts and gears.

Ensuring product quality
Digital precision control: Modern tempering furnaces are equipped with advanced digital control systems that can monitor and adjust parameters such as temperature and atmosphere in real-time. Operators can easily set the tempering program based on different components and process requirements through a digital interface. Once the parameters are abnormal, the system will immediately sound an alarm and automatically adjust to ensure the best tempering effect each time. For example, Zhejiang Hengchi’s tempering furnace utilizes digital technology to fully unleash the efficiency of the tempering furnace and provide customers with higher quality and reliable reducer products.
Product quality traceability: The digital recording function can retain each tempering data, achieving product quality traceability. If there is a problem with the product, it can quickly trace back to the production process, identify the root cause, and make improvements. For example, when a mechanical manufacturing enterprise produces a batch of shaft parts, the digital recording function of the tempering furnace can record the tempering temperature, time, and other parameters of each batch of parts. If quality problems are found in some parts during subsequent use, they can be identified by querying records to identify potential production links with issues and make timely adjustments and improvements.