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    Current Location:Home > News > Company News

    Common faults and maintenance of high frequency machine

    2018-04-09 8:52:12

    RIO Technology 瑞安瑞奧科技有限公司
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    Keywords: high frequency machine heating machine

    The high-frequency machine mainly uses high-voltage ballast to stimulate the oscillation of high-frequency electronic tubes, and instantly generates a high-frequency electromagnetic wave electric field. The processed PVC, TPU, EVA and other plastic materials are used to melt molecules in the electromagnetic wave electric field, and add a certain pressure to achieve purpose of welding. What are the main faults and troubleshooting of high-frequency machine equipment during use:

    1. Customers need to check the water filter regularly when using high-frequency machines and high-frequency equipment;

    2. If there is dust on the machine, use it to dry the compressed air and carefully blow the machine, but the main power must be turned off;

    Failure: Before checking, be sure to turn off the main power supply, because there are several thousand volts to tens of thousands of volts in the machine.

    Phenomenon 1: Common overcurrent red light is on (overload light)


    A) The lower die insulation is damaged.

    B) There are dirt, dust and water in the work object, vibrating cylinder or upper and lower molds that need to be cleaned.

    C) The level of the upper and lower molds of the high-frequency machine is not good.

    D) The upper and lower dies have no insulation, but directly touch each other.

    E) The input power of the high frequency machine is too high.

    F) The vacuum tube of the high-frequency machine is damaged or loose.

    G) Over-power protection electronic board is damaged. The overcurrent protection board is the one with the three mains.

    H) The high frequency machine coherent is too large and the output is too high.

    I) The work object is too large and exceeds the rated output of the same machine.

    J) The temperature control part is faulty.

    K) The high voltage capacitor is damaged.

    L) The high frequency machine insulation column (upper template) is damaged.

    Phenomenon 2: During high cycle output, the main power supply is disconnected or the fuse is burned


    A) Vacuum tube failure.

    B) Transformer failure.

    C) High voltage rectifier board failure.

    D) The three-phase magnetic switch is damaged.

    E) Short block of high voltage line.

    F) Electric heating plate failure.

    Phenomenon 3: The high-frequency machine has no high-frequency output during use


    A) The switch is in poor contact.

    B) Line failure.

    C) Vacuum tube failure.

    Phenomenon 4: The high-frequency machine has poor work when welding products


    A) Poor adjustment.

    B) Die problem.

    C) There is a problem with the plastic parts (workpieces).

    D) The insulation is too thick and the insulation is too high.

    Note: When the mold is pressed down and hits the lower mold, the ground copper sheet must be pressed against the lower plate, and the circular copper sheet can be slightly deformed. If the grounding copper sheet is not adjusted properly, the machine will not work stably. When changing the mold of different heights, the ground copper plate needs to be adjusted again.

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