Heat treatment technology by high-frequency heat treatment furnace at 83MEC

In the mechanical engineering industry, in addition to enhancing the efficiency of the machining process, heat treatment transforms metal materials into those with the desired properties by altering the material’s structure. This results in an increase in the material’s bending ability, impact reduction, abrasion resistance, and hardness. This stage also has a direct impact on the durability of the material. The greater the customer demand for mechanical properties, the stricter the requirements for machinery and monitoring, and the greater the quantity of heat-treated components. To determine whether a country has developed industry and is successful in the mechanical field, it is sufficient to examine the heat treatment process because even if mechanical processing is precise, without Annealing or heat treatment quality is not guaranteed, the life of the part is short, and the precision of the machine is not up to par. Mainly, high-frequency heat treatment furnaces play a crucial role in the steel production process, helping to enhance product quality, boost productivity, conserve energy, and reduce environmental pollution. 

1. A summary of heat treatment

83 Mec – Mastering the heat treatment of metals

2. What is a high-frequency furnace for heat treatment? 

The induction loop and high-frequency current are utilized by the high-frequency heat treatment furnace, also known as the high-frequency quenching furnace. This device operates on the electromagnetic induction principle using IGBT semiconductor devices. 

Due to its small size, lightweight, and low cost, the high-frequency quenching furnace is regarded as one of the best pieces of machinery for heating, melting, and welding forgings. 

3. High-frequency heat treatment furnace construction 

A high-frequency furnace comprises the following components: 

– Heating ring 

– Cooling pump 

– Cement resistant to high temperatures (helps safeguard the heating ring) 

– Cooling tower 

– Main Water, 

4. Principle of operation of a high-frequency heat treatment furnace 

The high-frequency heat treatment furnace’s structural principle is based on the phenomenon of electromagnetic induction. Similar to transformers, the ceramic tube is located between the helical induction coil (primary coil) and the metallic material (secondary coil). 

5. Advantages of using a high-frequency heat treatment furnace 

– A high-frequency heat treatment furnace has a straightforward structure, a compact design, and simple operation. 

– A high-frequency heat treatment furnace is also very affordable. The high-frequency heat treatment furnace has a structure that is both simple and extremely practical. Its direct impact on the metal workpiece expedites the heating of the heat-treatment component, saving time, increasing work output, and conserving energy. The consumption is reduced. 

Using a high-frequency heat treatment furnace in the heat treatment process minimizes component damage because the equipment is equipped with a suitable protection mode, the usage cycle is longer, and the cost of repairs and maintenance is reduced. 

– A high-frequency heat treatment furnace helps to heat the product’s surface precisely. This is especially useful when the heat-treating shaft or gear-shaped parts, require a surface that is hard and wear-resistant but a rugged interior. 

6. Disadvantages of high-frequency heat treatment furnaces: 

– High-frequency heat treatment furnaces are unsuitable for treating complex and irregularly shaped metal components. 

– Although high-frequency quenching can be used on many difficult metals to melt, there are a few exceptions, such as certain high-alloy steels, such as SKD, and other steel grades with strict temperature requirements for heat treatment atmosphere 

7. Utilization of high-frequency furnace for heat treatment 

– High-frequency heat treatment furnaces are utilized in numerous industries, including welding, forging, billet heating, and heat treatment of metal technical details (such as saw teeth, drill bits, shaft holes, saw blades, milling discs, knives, turning, carpentry tools, etc.). 

– High-frequency quenching furnace heat treatment may also be applied to metal components, tin plating, conductors, and fields such as mechanical bonding and glass sealing. 

– Used in other applications such as mechanical bonding, glass-metal sealing, and tin plating of conductors,… 

– I gear, rivets, screws, and bolts 

– Heating all types of agricultural equipment (crowbar, hammer, chisels, etc.), glue heating tube, glue heating tube. 

– Used to preheat bearings to disassemble the motor. 

– Welding saw blades, milling discs, turning knives,… 

– Heat treatment of variously sized gears, sprockets, and other components. 

– Used to smelt metals (gold, silver, copper …) 

In conclusion, one cannot deny the significance of high-frequency heat treatment technology. It helps to increase productivity and ensure product quality, while reducing customer costs and working hours. Additionally, the technology benefits the environment because it reduces temperatures and emissions. Consequently, the high-frequency heat treatment furnace is an indispensable technology and an efficient solution for the industrial sector.

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