Introduction and application of super audio frequency induction heating equipment

The principle of super audio frequency induction heating: the workpiece is put into the inductor, which is generally a hollow copper tube with medium frequency or high frequency AC input (1000-300000 Hz or higher). The alternating magnetic field produces an induced current of the same frequency in the workpiece. The distribution of the induced current in the workpiece is uneven. It is strong on the surface, but weak in the interior. It is close to 0 at the center. Using this skin effect (skin effect is also called skin effect or surface phenomenon), when the DC current passes through a guide rail, the current density at each point of the conductor section is uniform. When the alternating current passes through the conductor, the current density on the surface of the conductor is larger, while the current density inside the conductor is smaller. When the high frequency current passes through the conductor, the current density difference on the cross section of the conductor increases, and the current mainly concentrates on the surface of the conductor, which is called skin effect, It can heat the surface of the workpiece rapidly, and the surface temperature rises to 800-1000 ℃ in a few seconds, while the temperature of the core rises very little.

application area

1. Hot upsetting of high strength bolts and nuts;

2. Quenching of various gears, sprockets and shafts;

3. Quenching of various half shafts, leaf springs, forks, valves, rocker arms, ball pins and other auto parts.

4. Quenching of various internal combustion engine parts and deceleration surface parts.

5. Quenching of various hand tools such as pliers, knives and scissors, axes and hammers.

6. Welding of various kinds of diamond composite bits;

7. Welding of various cemented carbide cutting heads and saw blades;

8. All kinds of pick, drill bit, drill pipe, coal bit, wind bit, etc.

Diathermy forging

1. Hot upsetting of all kinds of standard parts, fasteners, high strength bolts and nuts;

2. Diathermal forging of bar with diameter less than 800mm;

3. Hot upsetting and hot rolling of mechanical parts, hardware tools and straight shank twist drills

Quenching

1. Quenching of various gears, sprockets and shafts;

2. All kinds of axle, leaf spring, fork, valve, rocker arm, ball pin and other automobile and motorcycle parts quenching.

3. Quenching of all kinds of internal combustion engine parts and deceleration surface parts;

4. Quenching treatment of machine tool surface guide rail in machine tool industry (lathe, milling machine, planer, punch, etc.).

5. All kinds of tongs, knives, axes, hammers and other hand tools quenching.

Welding

1. Welding of various kinds of diamond composite bits;

2. Welding of all kinds of carbide cutter head and saw blade;

3. Welding of various pick, drill bit, drill pipe, coal bit, wind bit and other mine accessories;

Annealing class

1. All kinds of ultrasonic induction heating equipment or local annealing treatment

2. Annealing treatment of various stainless steel products

3. Heating annealing and expansion of metal materials

Other heating fields

1. Heating and laminating of aluminum plastic pipe, cable and wire;

2. Aluminum foil sealing used in food, beverage and pharmaceutical industries

3. Welding of gold and silver jewelry

4. Precious metal smelting: smelting gold, silver, copper, etc