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　　一、声波的频率

　　1、 The frequency of sound waves

　　<1>  小于20Hz，次声波；

　　<1> Less than 20Hz, infrasound waves;

　　<2>  20-20000Hz，（人类能听到正常）声波；

　　<2> 20-20000Hz, (normal sound waves that humans can hear);

　　<3>  大于20000Hz，超声波；

　　<3> Greater than 20000Hz, ultrasonic;

　　二、超声波的组成：换能器（震子）+发生器（控制箱）

　　2、 Composition of ultrasonic waves: transducer (oscillator)+generator (control box)

　　叁、超声波清洗的工作原理：

　　3、 The working principle of ultrasonic cleaning:

　　与碳氢清洗机不同，当超声波电源将50贬锄的日常供电频率改变为28碍贬锄后，通过输出电缆线将其输送给粘接在盛放清洗剂溶液的清洗槽底部的超声波换能器，由换能器将高频的电能转换成机械振动并发射清洗液中。当高频的机械振动传播到液体里后，清洗液内即产生上述空化现象，达到清洗的目的。由于超声波的频率很高，在液体中所产生的空化作用可以达到28000次/秒，几乎可以说是不断地在进行，在液体中由于空化现象所产生的气泡数量众多且无所不在，因此对于工件的清洗可以非常彻底（在工业清洗机上应用广泛），即使是形状复杂的工件内部，只要能够接触到溶液，可以得到彻底的清洗，又因为每个气泡的体积非常微小，因此虽然它们的破裂能量很高，但对于工件和液体来说，不会产生机械破坏和明显的温升。

　　Unlike hydrocarbon cleaning machines, when the ultrasonic power supply changes the daily power frequency from 50Hz to 28KHz, it is transmitted to the ultrasonic transducer attached to the bottom of the cleaning tank containing the cleaning solution through the output cable. The transducer converts high-frequency electrical energy into mechanical vibration and emits it into the cleaning solution. When high-frequency mechanical vibrations propagate into the liquid, the above-mentioned cavitation phenomenon occurs in the cleaning solution, achieving the purpose of cleaning. Due to the high frequency of ultrasound, the cavitation effect generated in liquid can reach up to 28000 times per second, which can be said to be continuous. The number of bubbles generated by cavitation in liquid is numerous and ubiquitous, so the cleaning of workpieces can be very thorough (widely used in industrial cleaning machines). Even for complex shaped workpieces, as long as they can come into contact with the solution, they can be thoroughly cleaned. Moreover, because the volume of each bubble is very small, although their rupture energy is high, there will be no mechanical damage or significant temperature rise for the workpiece and liquid.

　　50贬锄——发生器（控制箱）转化——28000贬锄——换能器（震子）——电能转换成机械能（振动）——产生空化效应——达到清洗目的

　　50Hz - generator (control box) conversion -28000Hz - transducer (oscillator) - electrical energy converted into mechanical energy (vibration) - generates cavitation effect - achieves cleaning purpose

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