Science and technology to promote the development of industrial electric furnace

Forecast of the heat treatment market demand: 70% of the parts in the machinery industry need to be heat-treated, 70% to 80% of the parts in the automobile and tractor industries need to be heat-treated, and 100% of the tools, cutting tools and bearing products need to be heat-treated. Even if the service life of some civil light industrial metal products is mostly improved by heat treatment. The fastener industry, bearing industry, chain industry, motorcycle parts industry, etc. all need to rely on heat treatment quality to compete in the market. With the development of industry, it is predicted that there will be 400,000 to 500,000 tons of new thermal processing annually within ten years, and a large part of the domestic electric furnace equipment is outdated and backward, and it will tend to be eliminated.

 

At the same time, with the development of computer technology and automation technology, computer control systems are widely used in industrial automation, which greatly improves the technical level of factory equipment, promotes production, improves product quality, and ensures the safety and reliability of production. Industrial electric furnaces It has become a major pillar of industrial automation. Today, in terms of use, in the foundry workshop, there are cupolas for melting metals, induction furnaces, tube resistance furnaces, electric arc furnaces, vacuum furnaces, open hearth furnaces, crucible furnaces, etc .; there are sand-type drying furnaces for baking sand, iron alloy ovens, and Casting annealing furnace, etc .; in the welding workshop, there are pre-welding preheating furnace and post-welding tempering furnace with welding parts; in the forging and pressing workshop, there are various heating furnaces for heating the ingot or steel blank before forging; in the metal heat treatment workshop, there are Various annealing, normalizing, quenching and tempering heat treatment furnaces to improve the mechanical properties of the workpiece. Industrial electric furnaces are also widely used in other industries, such as distillation and cracking furnaces in the petroleum industry, ore sintering furnaces and coke ovens, cement kilns and glass melting in the silicate industry, metal melting furnaces in the metallurgical industry, and food industry Baking furnace, gas furnace, etc. According to the thermal system, industrial electric furnaces can be divided into two categories, namely intermittent furnaces, also known as periodic furnaces, and continuous furnaces.

 

Science and technology are constantly advancing with each passing step, and are constantly advancing the development of industrial electric furnaces, and provide huge technical possibilities to improve the automation and intelligentization of industrial electric furnace heat treatment. For metallurgical furnaces that use electrothermal effects to provide heat, the electric furnace equipment is usually complete. Compared with the fuel furnace, the electric furnace has the characteristics that the gas in the furnace is easy to control, and can even be evacuated, the heating temperature is high, the temperature is easy to control, and the possibility of mechanization and automation in the production process is high. Therefore, the demand for industrial electric furnaces is still very large.