English
Induction tempering is a heat treatment process typically performed after the completion of the induction hardening process. Its main purpose is to improve the mechanical properties of steel, such as reducing hardness, increasing toughness, and ductility, by heating and subsequent controlled cooling.
Electromagnetic Induction: Induction tempering uses high-frequency alternating current to generate a magnetic field in an induction coil, which in turn induces eddy currents in the metal workpiece. These eddy currents generate heat due to the resistance of the metal, thereby heating the workpiece. This method can achieve rapid and uniform heating with high thermal efficiency.
Material Preparation: Place the quenched steel parts inside the induction coil.
Induction Heating: Generate a magnetic field in the induction coil through high-frequency current, inducing eddy currents to rapidly heat the workpiece to the tempering temperature.
Soaking: After reaching the tempering temperature, maintain it for a period to allow changes in the internal microstructure of the workpiece, forming fine carbide particles.
Cooling: After soaking, the workpiece undergoes controlled cooling, usually air cooling or water cooling, to achieve the desired mechanical properties.
Post-treatment: Depending on the requirements, further machining or surface treatment may be performed.
Rapid Heating: Induction tempering can achieve rapid heating, usually only taking a few seconds, significantly reducing heating time.
Energy Efficiency: Due to high thermal efficiency, induction tempering is more energy-efficient than traditional furnace tempering methods.
Uniform Heating: Induction heating ensures uniform temperature across all parts of the workpiece, avoiding inconsistent heating in traditional methods.
Flexibility: Suitable for various shapes and sizes of workpieces, including complex geometries.
Improved Safety: Only the workpiece itself is heated, reducing the risk of burns and fire hazards for on-site workers.
Mechanical Parts: Used to improve the toughness and ductility of mechanical parts and reduce internal stresses after quenching.
Tools and Dies: Improve the mechanical properties of tools and dies through tempering to extend their service life.
Automotive and Aerospace: In these industries, induction tempering is used to enhance the performance and reliability of critical components.
The steel tube heat treatment production line features dual-channel operation, which allows for centralized control or independent control of each channel, making operation and switching convenient.
After manually placing the "tube products" into the material hopper, the loading table conveys the workpieces onto the production line's conveyor belt. The line then automatically completes the smooth transportation, rotation, heating and cooling (quenching), further transportation, heating (tempering), and cooling of the workpieces, as well as unloading, without the need for manual operation (after the production line is adjusted). It is a fully automatic steel tube quenching and tempering production line.
The quenching coolant is automatically filtered and circulated, and the system is equipped with alarm or shutdown functions for abnormal operating conditions (such as overload, overheating, workpiece loss of speed, failure).
Production Speed: 6 meters/minute - 8 meters/minute.
The mechanical rotation and transmission parts of the equipment should be agile and reliable. The noise and heat generated by the parts during movement should meet the requirements for product accuracy and national mechanical equipment industry standards. All equipment and components have reached the service life specified by the industry.
Components of both strong and weak electrical appliances should be safe and durable, and fully comply with relevant national technical standards.
The production line has a one-button quick start working mode, with an operation panel display screen and all related instruments (interfaces) "man-machine dialogue," using a Chinese interface.
The production line has the "dual-station" integrated operation or split operation function, and at the same time, has the split operation function for each module of equipment.
The production line has alarm or shutdown functions for each module under abnormal operating conditions (such as overload, overheating, workpiece loss of speed, failure).
The production line has the "intermittent quenching" function, with control error not exceeding 5 millimeters.
The production line is equipped with maintenance sockets and lighting lamps. The external power cables need to be routed reasonably and neatly, with the cable (or copper bar) entrance located at the bottom (or top) of the power supply.
The appearance of the production line should be aesthetically designed, adopt a "box-type" structure, and meet the requirements for heat dissipation and convenient maintenance. The color of the equipment should be based on the color plate provided by the purchasing manufacturer (except for safety signs).
After the entire production line is running, there should be no leaks (electricity, gas, quenching liquid, coolant, oil, etc.). The liquid and airflow direction signs should be prominently displayed in each pipeline, and the water inlet and outlet pipes should use quick connectors for easy connection; pressure gauges and thermometers should be installed in all water pipes for secondary cooling to monitor water pressure and temperature.
The main pipe of the water cooling part of the power supply is made of copper pipes to reduce the formation of scale. All water pipe connections use 3/8 copper triple quick connectors, which are convenient for maintenance.
The design, manufacture, and installation of the production line should comply with national and industry regulations and must meet the requirements for safe production. Safety protection devices must be added to parts with hidden safety hazards, and notices must be clearly indicated.
