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                  超聲波震頭在超聲波清洗槽中的分布及特點

                  來源:http://www.asxmb.top/ 時間: 2022-01-19 瀏覽次數: 2

                  目前有些超聲清洗機,粘在清洗槽底或壁上的換能器分布過密,一個緊挨一個的排列.輸入換能器的功率強度達到每平方厘米2-3瓦,這樣高的強度一方面會加快不銹鋼板表面(與清洗液接觸的表面)的空化腐蝕,縮短使用壽命,另一方面由于聲強過高。
                  At present, in some ultrasonic cleaning machines, the transducers adhered to the bottom or wall of the cleaning tank are densely distributed, one by one. The power intensity of the input transducer reaches 2-3 watts per square centimeter. On the one hand, such high intensity will accelerate the cavitation corrosion of the stainless steel plate surface (the surface in contact with the cleaning fluid) and shorten the service life. On the other hand, due to the high sound intensity.
                  會在鋼板表面附近產生大量較大的氣泡,增加聲傳播損失,在遠離換能器的地方削弱清洗作用。一般選用功率強度每平方厘米低于1.5瓦為宜(按粘有換能器的鋼板面積計算)。如果清洗槽較深,除槽底粘有換能器外, 在槽壁上也應考慮粘結換能器,或者只粘于槽體兩邊。
                  A large number of large bubbles will be generated near the surface of the steel plate, increasing the loss of sound propagation and weakening the cleaning effect far away from the transducer. Generally, it is appropriate to select the power strength less than 1.5 watts per square centimeter (calculated according to the area of the steel plate bonded with the transducer). If the cleaning tank is deep, in addition to the transducer stuck at the bottom of the tank, the transducer should also be bonded on the tank wall, or only on both sides of the tank.
                  超聲波換能器(震子)與超聲波清洗槽的粘貼質量對超聲清洗機整機的質量影響很大。不但要粘牢,而且要求膠層均勻、不缺膠和不允許有裂縫,使超聲能量最大限度地向清洗液中傳輸,以提高整機效率和清洗效果。目前有些清洗設備為避免換能器從清洗槽上掉下來。
                  The bonding quality of ultrasonic transducer (vibrator) and ultrasonic cleaning tank has a great impact on the quality of the whole ultrasonic cleaning machine. Not only shall it be firmly adhered, but also the adhesive layer shall be uniform, without glue shortage and cracks, so as to maximize the transmission of ultrasonic energy to the cleaning fluid, so as to improve the efficiency and cleaning effect of the whole machine. At present, some cleaning equipment to avoid the transducer falling from the cleaning tank.
                  采取螺釘加粘膠的固定方式,這種連接方式可以很好的讓換能器不會掉下來。但是要注意螺釘焊接質量,假如不垂直于不銹鋼板表面,則膠層不均勻,甚至有裂痕或缺膠,能量傳輸會削弱;另一方面.如果焊接不好也會影響不銹鋼表面的平整,導致加速空化腐蝕,縮短使用壽命,所以焊接質量非常重要。
                  Adopt the fixing method of screw and glue, which can well prevent the transducer from falling down. However, pay attention to the screw welding quality. If it is not perpendicular to the surface of stainless steel plate, the adhesive layer is uneven, even cracks or lack of adhesive, and the energy transmission will be weakened; On the other hand, poor welding will also affect the flatness of stainless steel surface, accelerate cavitation corrosion and shorten service life, so welding quality is very important.
                  判斷粘貼質量的方法之一,是在超聲波清洗槽裝水并開機工作一段時間后,測量超聲波換能器的溫升。如果在眾多的換能器中某個換能器溫升特別快,則表明該換能器可能粘結不好.因為此時聲輻射不好,電能量大部分消耗在換能器上而發熱。另一個方法是在小信號條件下逐個測量 換能器的電阻抗大小來判別粘結質量。
                  One of the methods to judge the sticking quality is to measure the temperature rise of the ultrasonic transducer after the ultrasonic cleaning tank is filled with water and started up for a period of time. If the temperature rise of one of the many transducers is particularly fast, it indicates that the transducer may not be bonded well. At this time, because the sound radiation is not good, most of the electrical energy is consumed on the transducer and generates heat. Another method is to measure the impedance of transducers one by one under the condition of small signal to judge the bonding quality.
                  目前在超聲波清洗機的性能方面還存在一些模糊的認識:認為功率越大,換能器數目越多.其性能越好,價值越高,甚至以此論價.這種認識是不全面的. 如上述,超聲波換能器布得過密,功率密度過大,不但清洗效果不好,而且槽底易空化腐蝕.
                  工業超聲波清洗機
                  At present, there are still some vague understandings about the performance of ultrasonic cleaning machine: the greater the power, the more the number of transducers. The better the performance, the higher the value, and even the price. This understanding is not comprehensive. For example, if the ultrasonic transducers are densely distributed and the power density is too high, not only the cleaning effect is not good, but also the tank bottom is prone to cavitation and corrosion
                  另一方面, 目前超聲波清洗機商品所標的功率大多是聲功率而不是電功率,如果所標是指消耗工頻功率,則超聲波清洗機質量的優劣應該由效率來判斷。如果效率低,在同樣清洗效果時則耗電大,反而增加了用戶的費用。超聲清洗機的效率包括兩部分.
                  On the other hand, at present, the target power of ultrasonic cleaning machine is mostly acoustic power rather than electrical power. If the target refers to the consumption of power frequency power, the quality of ultrasonic cleaning machine should be judged by efficiency. If the efficiency is low, the power consumption will be high when the cleaning effect is the same, but the cost of users will be increased. The efficiency of ultrasonic cleaning machine includes two parts
                  一是超聲頻電源的效率.即輸入換能器的 高頻電功率與消耗工頻電功率之百分比;另一部分是電聲轉換效率,即進入清洗液中的聲功率與輸入換能器的電功率之百分比.目前我國在工業生產中還沒有一種簡便的方法和設備來測量電聲轉換效率。各廠家所標的超聲波清洗機的功率是含糊不清的,亟需有行業的統一標準.
                  One is the efficiency of ultrasonic frequency power supply, that is, the percentage of high-frequency electric power of input transducer and power frequency electric power consumed; The other part is the electroacoustic conversion efficiency, that is, the percentage of the acoustic power entering the cleaning solution and the electrical power of the input transducer. At present, there is no simple method and equipment to measure the electroacoustic conversion efficiency in China's industrial production. The power of ultrasonic cleaning machine marked by various manufacturers is ambiguous, and there is an urgent need for industry unified standards
                  以上就是今天小編給大家提供的精彩內容,更多的精彩內容請點擊進入我們的官方網站:工業超聲波清洗機http://www.asxmb.top
                  The above is the wonderful content provided by Xiaobian today. For more wonderful content, please click to enter our official website: industrial ultrasonic cleaning machine http://www.asxmb.top

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