![超聲波清洗機的原理是什么？]( "超聲波清洗機的原理是什么？")
超(chao)聲(sheng)(sheng)(sheng)(sheng)波(bo)(bo)(bo)在(zai)(zai)(zai)(zai)液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)中(zhong)傳(chuan)播(bo)，使(shi)液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)和(he)(he)(he)清(qing)(qing)(qing)洗(xi)(xi)(xi)槽(cao)在(zai)(zai)(zai)(zai)超(chao)聲(sheng)(sheng)(sheng)(sheng)波(bo)(bo)(bo)頻(pin)率下(xia)振動，液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)和(he)(he)(he)清(qing)(qing)(qing)洗(xi)(xi)(xi)槽(cao)在(zai)(zai)(zai)(zai)自己的(de)(de)(de)(de)(de)固有頻(pin)率（即聲(sheng)(sheng)(sheng)(sheng)頻(pin)）下(xia)振動，人(ren)們(men)聽到(dao)嗡(weng)嗡(weng)聲(sheng)(sheng)(sheng)(sheng)。沿著清(qing)(qing)(qing)洗(xi)(xi)(xi)行業的(de)(de)(de)(de)(de)發展，越來越多的(de)(de)(de)(de)(de)行業和(he)(he)(he)企業使(shi)用超(chao)聲(sheng)(sheng)(sheng)(sheng)波(bo)(bo)(bo)清(qing)(qing)(qing)洗(xi)(xi)(xi)機(ji)(ji)。依據(ju)(ju)超(chao)聲(sheng)(sheng)(sheng)(sheng)波(bo)(bo)(bo)清(qing)(qing)(qing)洗(xi)(xi)(xi)器(qi)(qi)的(de)(de)(de)(de)(de)原理(li)，來源于(yu)超(chao)聲(sheng)(sheng)(sheng)(sheng)波(bo)(bo)(bo)換能(neng)器(qi)(qi)的(de)(de)(de)(de)(de)高(gao)(gao)頻(pin)率振動數(shu)據(ju)(ju)信號根據(ju)(ju)超(chao)聲(sheng)(sheng)(sheng)(sheng)波(bo)(bo)(bo)換能(neng)器(qi)(qi)轉(zhuan)換為(wei)(wei)(wei)(wei)高(gao)(gao)頻(pin)率現(xian)代控制(zhi)理(li)論，散播(bo)到(dao)做為(wei)(wei)(wei)(wei)物質的(de)(de)(de)(de)(de)清(qing)(qing)(qing)理(li)有機(ji)(ji)溶劑中(zhong)，超(chao)音波(bo)(bo)(bo)在(zai)(zai)(zai)(zai)清(qing)(qing)(qing)潔(jie)液(ye)(ye)(ye)(ye)中(zhong)粗密地前后左右放射(she)性，使(shi)液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)流動性而(er)造成(cheng)(cheng)數(shu)十萬(wan)米的(de)(de)(de)(de)(de)直(zhi)徑50-500μm的(de)(de)(de)(de)(de)細微汽(qi)泡，液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)中(zhong)存有的(de)(de)(de)(de)(de)細微汽(qi)泡在(zai)(zai)(zai)(zai)音場中(zhong)振動。這(zhe)些氣泡形成(cheng)(cheng)并(bing)生(sheng)長在(zai)(zai)(zai)(zai)超(chao)聲(sheng)(sheng)(sheng)(sheng)縱向傳(chuan)輸負(fu)壓(ya)(ya)(ya)區,而(er)在(zai)(zai)(zai)(zai)正壓(ya)(ya)(ya)區,當聲(sheng)(sheng)(sheng)(sheng)壓(ya)(ya)(ya)達(da)(da)到(dao)一(yi)定(ding)值時(shi),氣泡迅速(su)增加,然(ran)后突(tu)然(ran)關(guan)閉(bi)(bi)。并(bing)在(zai)(zai)(zai)(zai)氣泡閉(bi)(bi)合時(shi)產生(sheng)沖擊波(bo)(bo)(bo)，在(zai)(zai)(zai)(zai)其周圍產生(sheng)上千個(ge)大氣壓(ya)(ya)(ya)，破壞不溶性污(wu)物而(er)使(shi)他們(men)分散于(yu)清(qing)(qing)(qing)洗(xi)(xi)(xi)液(ye)(ye)(ye)(ye)中(zhong)，當團體(ti)(ti)(ti)(ti)粒子被油污(wu)裹著而(er)黏附在(zai)(zai)(zai)(zai)清(qing)(qing)(qing)洗(xi)(xi)(xi)件(jian)表面時(shi)，油被乳(ru)化(hua)，固體(ti)(ti)(ti)(ti)粒子及脫離，從而(er)達(da)(da)到(dao)清(qing)(qing)(qing)洗(xi)(xi)(xi)件(jian)凈化(hua)的(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)。在(zai)(zai)(zai)(zai)這(zhe)種被稱之為(wei)(wei)(wei)(wei)“空化(hua)”效(xiao)應的(de)(de)(de)(de)(de)過程中(zhong)，氣泡閉(bi)(bi)合可形成(cheng)(cheng)幾百度的(de)(de)(de)(de)(de)高(gao)(gao)溫和(he)(he)(he)超(chao)過1000個(ge)氣壓(ya)(ya)(ya)的(de)(de)(de)(de)(de)瞬間(jian)高(gao)(gao)壓(ya)(ya)(ya)。超(chao)聲(sheng)(sheng)(sheng)(sheng)波(bo)(bo)(bo)清(qing)(qing)(qing)洗(xi)(xi)(xi)機(ji)(ji)的(de)(de)(de)(de)(de)優點是(shi)：超(chao)聲(sheng)(sheng)(sheng)(sheng)波(bo)(bo)(bo)清(qing)(qing)(qing)洗(xi)(xi)(xi)效(xiao)果好(hao)，操(cao)作(zuo)簡單(dan)。人(ren)們(men)聽到(dao)的(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)音是(shi)20-20000Hz頻(pin)率高(gao)(gao)于(yu)20000Hz的(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)波(bo)(bo)(bo)信號,稱為(wei)(wei)(wei)(wei)超(chao)聲(sheng)(sheng)(sheng)(sheng)波(bo)(bo)(bo)。一(yi)個(ge)原因(yin)是(shi)液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)中(zhong)的(de)(de)(de)(de)(de)局部拉(la)應力形成(cheng)(cheng)負(fu)壓(ya)(ya)(ya),壓(ya)(ya)(ya)力的(de)(de)(de)(de)(de)減小使(shi)原溶解氣體(ti)(ti)(ti)(ti)飽和(he)(he)(he),但(dan)從液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)中(zhong)逃逸,成(cheng)(cheng)為(wei)(wei)(wei)(wei)一(yi)個(ge)小泡;另一(yi)個(ge)原因(yin)是(shi)強拉(la)應力將液(ye)(ye)(ye)(ye)體(ti)(ti)(ti)(ti)撕裂(lie)成(cheng)(cheng)一(yi)個(ge)孔(kong),稱為(wei)(wei)(wei)(wei)空化(hua)。
發布時間:
2020
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01
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14
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