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What about the abnormal temperature of the electromagnetic heater?

Author: Zhongshan Shengchi Electronic Technology Co., Ltd.: professional knowledge release: 2019-01-03 02:40:48 reading: (522)
Abstract:
    Electromagnetic heater
    1, after the electromagnetic heater device temperature is not up to standard treatment 1
    When the injection molding machine is similar to small power, after installing the electromagnetic heater, some machines always get a little worse. When the power is changed, it is still the case. Sometimes people are always confused. Most of them are not the reason of small power installation. This is due to the PID operation of the temperature controller in the original machine. The starting signal is very short, and the electromagnetic heater has not yet worked and broken. Therefore, most of the electromagnetic heaters stop heating, without heating. At this point, we can adjust the delay time in the machine to achieve the temperature requirement. Be careful not to adjust too much. Otherwise, it may be overheated.
    2, after the electromagnetic heater device temperature is not up to standard treatment 2
    When the pelletizer is similar to high power, after installing the electromagnetic heater, the temperature can not reach. The electromagnetic heater has been working and the current is normal, but the temperature is not going up. The general situation is that the power is not big enough. Can increase the actual power to achieve. If it is determined that the actual power is not small, it is caused by the material of the barrel, and the heat absorbed by different materials at different operating frequencies is also different. We should try to increase the capacitance of resonant capacitor, increase the Q value and increase the high frequency current of the coil. The temperature inside and outside the barrel can be evenly distributed to increase the temperature of the barrel. If conditions permit, you can replace the barrel.
    3. How to deal with the temperature exceeding the temperature after the electromagnetic heater is installed?
    Most of these phenomena are injection molding machines, and the number of electromagnetic heaters in injection molding machines is quite large. Disturbing is also serious. Sometimes it is found that the temperature is jumping and the temperature is unstable and punctual. Several ways can be used to test: first, the two ends of the thermocouple can be connected with a 102P ceramic capacitor to eliminate high-frequency disturbance. Second, check whether the gun barrel grounding is outstanding. The test barrel was forced to ground. Third, keep the coil away from the thermocouple and reduce the disturbance. Fourth, test the high temperature cloth to wrap the thermocouple, so that it does not touch the barrel. Fifth, test for a new thermocouple. Sixth, test the injection molding machine to control the computer center and add a Pai type wave detector to reduce the disturbance of power supply.
    The above is the treatment of abnormal temperature in the process of using the electromagnetic heater. The advantages of the electromagnetic heater's environmental protection, energy saving and high efficiency are favored by the majority of users. The electromagnetic heater will be more and more widely used in the industrial field.
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