It is modified by medium frequency furnace to carry out precision casting of ductile iron or alloy steel. In forging, the use of dare to heat to achieve rapid diathermy hot forging not only reduces the scale loss but also greatly increases the life of the forging die. The rate of up to 85, the surface roughness of forgings can be less than 50μm; in the field of welding and quenching, foreign countries are committed to the development of high-power all-solid-state high-frequency power supply, on the one hand, to develop a highly automated heat treatment complete processing system. At present, about 10 million tons of castings needs in China per year, and the foundry industry is still mainly based on cupola melting and casting of general cast iron. The tonnage is small, resulting in large fluctuations in temperature and composition, and high scrap rate. The better casting industry scrap rate is also 6 to 15, while the average foundry's scrap rate is as high as 30.
Before operation, first familiarize yourself with the heat treatment process and the equipment to be used.
When handling, you must wear the necessary protective equipment, such as overalls, gloves, protective glasses, and so on.
Do not place any obstructing items between the induction heating device and the cooling device.
Mixed carburizing agents, sand blasting, etc. are carried out in separate rooms and adequate ventilation should be provided.
Equipment hazardous areas (such as electric furnace power leads, bus bars, conductive rods and transmission mechanisms, etc.) should be protected by wire mesh, fences, plates, etc.
All tools for heat treatment should be placed in an organized manner, and cracked, unsuitable tools are not allowed.
The entrances and exits of the workshop and the access roads in the workshop shall be unimpeded. In the vicinity of the nozzle of the heavy oil furnace and the nozzle of the gas furnace, a fire extinguishing sand box shall be placed; a fire extinguisher shall be placed in the workshop.
Heat-treated workpieces should not be used to touch them to avoid burns.
