The heating and cooling during the heat treatment equipment process can cause changes in the shape and size of metal workpieces after treatment. The increased machining allowance can be eliminated by reprocessing methods, while deformation exceeding the tolerance will lead to scrapping, resulting in the loss of materials and resources that have been invested. Workpiece deformation can also affect interchangeability and reduce the precision of operation, resulting in reduced efficiency, increased energy consumption and noise and other drawbacks. For this reason, zero distortion in heat treatment is of great significance, which is guaranteed by the production of the heat treatment process. Production relies on heat treatment equipment with high control accuracy and reliable operation, as well as small deviations in the composition and structure of materials and the corresponding thermal physical properties and process performance of materials to ensure quality, thereby reducing the quality differences of batch processed parts in the same furnace and improving the reproducibility of batch processed products in different furnaces.

  The application of induction heating in industry in China began in the 1950s. At the end of the 1950s, China independently developed electronic tube high-frequency power supplies and mechanical medium-frequency generators. After the 1960s, thyristor medium-frequency power supplies were developed. Currently, in the medium-frequency range of 150 to 10kHz abroad, SCR medium-frequency power supplies have completely replaced medium-frequency generator sets and electromagnetic frequency doublers. Since the reform and opening up, the introduction of modern induction heating technology from industrialized countries has greatly promoted the development of induction heat treatment technology in China.

  Heat treatment equipment is a process that has a significant impact on product quality in the mechanical manufacturing process. In the face of the new situation, it is necessary to carefully analyze the requirements of the development of the mechanical industry, and in combination with the development characteristics of the heat treatment industry itself, make necessary adjustments to the work priorities of enterprises. In recent years, China's heat treatment equipment industry has achieved a series of gratifying accomplishments: there have been varying degrees of progress in quality management, technological transformation, professionalization, and the degree of opening up to the outside world. The labor productivity of all employees in the industry has also significantly improved. According to the data analysis from the survey of 843 heat treatment plants and sites last year, it is approximately 40% higher than the data from the survey in 1997. Induction heat treatment has many advantages such as fast heating speed, energy conservation, no oxidation or decarburization, no environmental pollution and high production efficiency. These advantages have been widely recognized by heat treatment workers, and thus it has developed rapidly in the past decade or so.

  The superiority of heat treatment equipment is widely recognized by heat treatment workers

  The heating and cooling during the heat treatment equipment process can cause changes in the shape and size of metal workpieces after treatment. The increased machining allowance can be eliminated by reprocessing methods, while deformation exceeding the tolerance will lead to scrapping, resulting in the loss of materials and resources that have been invested. Workpiece deformation can also affect interchangeability and reduce the precision of operation, resulting in reduced efficiency, increased energy consumption and noise and other drawbacks. For this reason, zero distortion in heat treatment is of great significance, which is guaranteed by the production of the heat treatment process. Production relies on heat treatment equipment with high control accuracy and reliable operation, as well as small deviations in the composition and structure of materials and the corresponding thermal physical properties and process performance of materials to ensure quality, thereby reducing the quality differences of batch processed parts in the same furnace and improving the reproducibility of batch processed products in different furnaces.

  The application of induction heating in industry in China began in the 1950s. At the end of the 1950s, China independently developed electronic tube high-frequency power supplies and mechanical medium-frequency generators. After the 1960s, thyristor medium-frequency power supplies were developed. Currently, in the medium-frequency range of 150 to 10kHz abroad, SCR medium-frequency power supplies have completely replaced medium-frequency generator sets and electromagnetic frequency doublers. Since the reform and opening up, the introduction of modern induction heating technology from industrialized countries has greatly promoted the development of induction heat treatment technology in China.

  Improving labor productivity and reducing production costs to achieve economic benefits are the goals pursued by heat treatment production and all enterprises. An important prerequisite for achieving high production efficiency is the batch production of a single variety. Under conditions of large-scale and mass production, the adoption of production process automation, online informatization of quality, simulation and adaptive control of process parameters and quality effects can maximize production efficiency, achieve unmanned operation, and thus completely eliminate human factors, ensuring low dispersion of product quality. Heat treatment processes that shorten the production cycle can not only save energy but also improve production efficiency. Improving the reliability of equipment and reducing the failure rate can decrease the frequency of maintenance and auxiliary time. Under the production mode of multiple varieties and small batches, the adoption of flexible equipment and multi-purpose equipment production lines can also enhance production efficiency.

  Heat treatment equipment is a process that has a significant impact on product quality in the mechanical manufacturing process. In the face of the new situation, it is necessary to carefully analyze the requirements of the development of the mechanical industry, and in combination with the development characteristics of the heat treatment industry itself, make necessary adjustments to the work priorities of enterprises. In recent years, China's heat treatment equipment industry has achieved a series of gratifying accomplishments: there have been varying degrees of progress in quality management, technological transformation, professionalization, and the degree of opening up to the outside world. The labor productivity of all employees in the industry has also significantly improved. According to the data analysis from the survey of 843 heat treatment plants and sites last year, it is approximately 40% higher than the data from the survey in 1997. Induction heat treatment has many advantages such as fast heating speed, energy conservation, no oxidation or decarburization, no environmental pollution and high production efficiency. These advantages have been widely recognized by heat treatment workers, and thus it has developed rapidly in the past decade or so.