包装机械、食品机械中经常要用到电加热部件,用以保证某些场合的加热或恒温,加热的方法有许多种,例如脉冲式、电阻式、超声波式等。这些加热方式具有各种各样的加热元件,在通电的情况下,这些元件发热,并使得工作部件温度逐渐升高;当温度达到一定值后,需要将电源切断;当温度下降后,可以再次接通电 Packaging machinery, food machinery often use electric heating components to ensure that some occasions, heating or constant temperature, there are many ways to heat, such as pulse, resistance, ultrasonic and so on. These heating methods have a variety of heating elements, in the case of electricity, these elements heat and make the working parts temperature gradually increased; when the temperature reaches a certain value, you need to cut off the power; when the temperature drops, you can again Turn on the electricity