What does annealing mean? What is the working principle of high frequency annealing equipment? -Kehua
In metal processing, annealing is required to increase the toughness of metal products. When annealing, it is necessary to use annealing equipment, such as a high-frequency annealing machine. Now Kehua will tell you what annealing means, and what is the working principle of high-frequency annealing equipment? What does annealing equipment mean? Annealing is a metal heat treatment process, which refers to slowly heating the metal to a certain temperature for a sufficient time. , and then cool at an appropriate rate. The purpose is to reduce hardness, improve machinability; reduce residual stress, stabilize size, reduce deformation and crack tendency; refine grains, adjust organization, and eliminate organizational defects. Kehua believes that annealing is a heat treatment process for materials, including metallic materials and non-metallic materials. Moreover, the purpose of annealing of new materials is similar to that of traditional metal annealing. Annealing equipment What is the working principle of high-frequency annealing equipment? High-frequency annealing equipment needs to be annealed after ion implantation. Because when impurity ions are implanted into the semiconductor, the high-energy incident ions will collide with the atoms on the semiconductor lattice, causing some lattice atoms to be displaced, resulting in a large number of vacancies, which will make the arrangement of atoms in the implanted area disorder or become It is an amorphous region, so after ion implantation, the semiconductor must be annealed at a certain temperature to restore the crystal structure and eliminate defects. At the same time, annealing also has the function of activating the donor and acceptor impurities, that is, some impurity atoms in the interstitial position are annealed to allow them to enter the replacement position. The annealing temperature is generally 200~800C, which is much lower than the temperature of thermal diffusion doping. Annealing is an indispensable process for metal smelting and processing. After metal products are annealed, they can increase their toughness and improve their service life. When annealing, annealing equipment is required.