Metal workpieces need to be quenched and heated. Induction quenching equipment is the most popular way for manufacturers. According to the frequency, it can be divided into high-frequency induction quenching equipment, medium-frequency quenching equipment and ultra audio quenching equipment. When purchasing, some people need medium-frequency quenching equipment, some people need high-frequency quenching equipment, and of course, some people need ultra audio quenching equipment, This depends on the required quenching layer thickness of the workpiece.
Although high frequency quenching equipment, medium frequency quenching equipment and ultra audio frequency quenching equipment are very different, their working principle is the same. They all use the induced current frequency to quickly heat and cool the surface of steel. That is, through the induction coil with a certain frequency of AC, the same frequency of angular force magnetic field will be generated inside and outside the coil. If the workpiece is placed in the coil, the workpiece will be induced by AC and heat the workpiece.
The current penetration of the induced workpiece surface depth depends on the current frequency (cycles per second). At higher frequencies, the shallower the current penetration depth, the thinner the hardened layer. Therefore, it can select different frequencies to achieve different depths of hardened layer. That is why some people choose medium frequency quenching equipment, some choose high frequency quenching equipment, and others choose ultra audio frequency quenching equipment,
Guangyuan · guangzhiyuan technology produces high-frequency quenching equipment, medium frequency quenching equipment and ultra audio quenching equipment. Let's talk about high-frequency quenching equipment, medium frequency quenching equipment and ultra audio quenching equipment.
1. High frequency quenching equipment is 50-500khz, hardened layer (1.5-2mm), high hardness frequency, workpiece is not easy to oxidize and deform, quenching quality and high production efficiency. This kind of equipment is suitable for friction conditions, such as general pinion and shaft type (for materials of 45 steel and 40Cr steel).
2. Ultra audio frequency quenching equipment 30-36khz, Hardened layer (1.5-3mm). The hardened layer can be divided into small and medium modulus gears along the workpiece contour. The surface heat treatment is to change the surface structure of the part to obtain martensite with high hardness, while retaining the core toughness and plasticity (i.e. surface quenching), or change the chemical composition of the surface at the same time to obtain corrosion resistance, acid resistance and alkali resistance, and the surface hardness is higher than the former (i.e. chemical heat treatment).
3. The medium frequency quenching equipment is 1-10khz and the frequency of hardened layer depth (3-5mm). This kind of equipment is suitable for bearing parts, such as crankshaft, pressure load of large gear, grinder spindle, etc. (the materials are 45 steel, 40Cr steel, 9mn2v and nodular cast iron).
The customer decides which frequency band of quenching equipment to choose, and which product to choose. The quenching equipment of a frequency band is determined by the quenching workpiece. Customers need to carefully distinguish the quality of products, and choose trustworthy and reliable manufacturers and high-quality products to make their work efficiency higher.