The principle, application and maintenance of high frequency machine
Introduce the working principle of high frequency machine, application on heat treatment process of workpiece surface, maintenance experience and daily and regular maintenance items. The cause of the fault and the treatment method are given. First, the principle High-frequency machine working principle: The high-frequency current flows into a heating coil that is wound into a ring or other shape (usually made of copper tube). By using the electric resistance in the object to be heated, a lot of Joule heat is generated, so that the temperature of the object itself rises rapidly, so that the purpose of heating all the metal materials is achieved. Second, the application of high-frequency induction heating quenching is widely used in heat treatment production, with high heating speed, easy control, high productivity, less oxidative decarburization, less deformation of quenched workpiece, good working conditions, no pollution and easy to achieve mechanization, automation and so on. . The high-frequency equipment is mainly applied to the surface heat treatment of the workpiece, such as the surface quenching of the gear teeth and the pin sleeve shaft, which can improve the surface hardness, increase the wear resistance, and can be used for welding and melting. 1. High-frequency machine is used in welding field: welding of various diamond composite drill bits; welding of various carbide cutter heads and saw blades; various picks, drill heads, drill pipes, coal drill bits, wind Welding of drill parts such as drill bits. Third, maintenance High-frequency machine maintenance experience summary is shown in the table. Fourth, maintenance (2) Always check the electrical system wiring and electrical contacts are good, and the electrical components are working properly.
Toggle switches, also called On Off Toggle Switches, is often used as the switching device of the equipment stalls. Meanwhile, we are also offer our customers Key Switches , Metal Switches , Automotive Switches, Push Button Switches, etc.
The Electrical Toggle Switches is a manually controlled Toggle Switches similar to the dial switch. Most of this Latching Toggle Switches are widely used in on-off control of AC and DC power circuits, and are less commonly used in circuits of several kilohertz or up to 1 megahertz. Let's take a look at the following.
1. Splash-proof knob button switch
The panel is installed with a splash-proof `O` ring seal, and the knob is a ball. It is a splash-proof ball button knob switch. Its terminals are in a straight line and the bottom of the terminals is sealed with epoxy resin. Strong corrosion resistance, suitable for automotive parts
2. Vertical Mount Right Angle Toggle Switch
The vertical mounting of the terminals and the terminal pins are right-angled, so it is a vertically mounted right-angled toggle switch. Its contacts are gold-plated and highly reliable. Mostly used in anti-theft devices, alert system.
3. Bipolar single toggle switch
At the same time, the switch breaks the phase line and the N line and controls one branch. Therefore, it is a bipolar single toggle switches. The contacts are in 3PDT form and are used for multimedia speakers and stereos.
4. Standard surface mount unthreaded toggle switches
The terminal adopts the standard mounting mode. Its sleeve has no thread. It is called a standard surface mount screw-less switch. The contacts are SPDT and its electrical life is as high as 55,000. Used for medical equipment
5. Horizontally mounted right-angle toggle switch
Compared to the vertical switch, it only changes direction to horizontal, so it is horizontally mounted right-angle toggle switch. The contacts are double-pole double-throw and the bottom of the terminal is Epoxy Seal. Mostly used for computer peripherals.
Toggle Switches Toggle Switches,On Off Toggle Switches,Micro Toggle Switches,Electrical Toggle Switches,Toggle Switch Function YESWITCH ELECTRONICS CO., LTD. , https://www.yeswitches.com
[Keywords] high frequency machine principle, maintenance, maintenance, maintenance application
Our company's high-frequency device GP100-C2 is a tube-type inverter, which is a high-power self-excited tube. The 50Hz three-phase 380V current is boosted by the anode transformer and rectified into a 13kV DC current, which is converted into high-frequency alternating current by the self-excited oscillator of the electron tube, and then the output of the quenching transformer is stepped down to the inductor to heat the workpiece. The frequency of the output current of the inverter depends on the inductance and capacitance on the main oscillation circuit. The oscillating circuit is composed of an electronic oscillating tube and an inductor, a spider and a capacitor Ciz.C13, and directly constitutes a heat with the primary of the transformer B6 and the capacitance C, s. The combination of the oscillation and the heating circuit uses a self-carrying transformer coupling circuit with a short-circuit coil. The feedback voltage of the oscillating tube is formed by the feedback coil secondary 117 and the voltage dividing capacitor C113 to form a combined voltage, which is supplied to the gate of the oscillating tube. The starting and stopping of the oscillating tube is controlled by the gate voltage, and the negative voltage of 1 OOOV provided by the blocking circuit is added at the gate. When the DC high voltage on the anode is blocked, the vibration is stopped; when the heating relay is normally open, the gate is closed. The pole's negative voltage is grounded, the negative pressure is cut off, and the oscillating tube generates an anode current to start working.
2, high-frequency machine for quenching field: quenching of various gears, sprockets, shafts; quenching of machine tool bed rails in machine tool industry; quenching of hardware tools.
3, high-frequency machine for the field of heat transfer: a variety of high-strength bolts, nuts enthusiasm; hot-rolled twist drill; all parts of the diameter of 80 within the heat forging. 
1. Daily maintenance project
(1) Frequently clean the dust inside the equipment and capacitors, oscillating tubes, high-pressure porcelain bottles and silicon components, and wipe gently with alcohol.
(3) The temperature of the positive flow, the gate flow and the outlet water shall not exceed the specified value in strict accordance with the operating procedures.
(4) Non-operators are strictly prohibited to operate the equipment, and operators should be familiar with the performance of the equipment.
2. Regular maintenance items (fixed warranty)
(1) The high voltage transformer is inspected once every 1-1.5 years.
(2) Check the insulation of high-voltage porcelain bottles and wires and clean them.
