超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)在(zai)(zai)液體(ti)(ti)中(zhong)(zhong)傳(chuan)播,使(shi)液體(ti)(ti)和清(qing)(qing)洗(xi)(xi)槽在(zai)(zai)超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)頻(pin)(pin)率下(xia)振動(dong),液體(ti)(ti)和清(qing)(qing)洗(xi)(xi)槽在(zai)(zai)自己的(de)固有(you)頻(pin)(pin)率(即(ji)聲(sheng)(sheng)頻(pin)(pin))下(xia)振動(dong),人們(men)聽到(dao)(dao)嗡嗡聲(sheng)(sheng)。沿著清(qing)(qing)洗(xi)(xi)行業的(de)發展,越來越多的(de)行業和企業使(shi)用超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)清(qing)(qing)洗(xi)(xi)機。依據超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)清(qing)(qing)洗(xi)(xi)器(qi)的(de)原(yuan)理,來源于(yu)超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)換能器(qi)的(de)高(gao)頻(pin)(pin)率振動(dong)數據信號(hao)根據超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)換能器(qi)轉換為(wei)(wei)(wei)高(gao)頻(pin)(pin)率現代控(kong)制(zhi)理論,散播到(dao)(dao)做為(wei)(wei)(wei)物質(zhi)的(de)清(qing)(qing)理有(you)機溶(rong)劑(ji)中(zhong)(zhong),超(chao)(chao)音波(bo)(bo)在(zai)(zai)清(qing)(qing)潔(jie)液中(zhong)(zhong)粗密(mi)地(di)前后左(zuo)右放射性,使(shi)液體(ti)(ti)流(liu)動(dong)性而造成(cheng)(cheng)(cheng)(cheng)數十(shi)萬米的(de)直徑50-500μm的(de)細(xi)微汽(qi)泡,液體(ti)(ti)中(zhong)(zhong)存有(you)的(de)細(xi)微汽(qi)泡在(zai)(zai)音場(chang)中(zhong)(zhong)振動(dong)。這些氣(qi)(qi)(qi)泡形成(cheng)(cheng)(cheng)(cheng)并生(sheng)長在(zai)(zai)超(chao)(chao)聲(sheng)(sheng)縱向傳(chuan)輸(shu)負壓(ya)區,而在(zai)(zai)正壓(ya)區,當(dang)聲(sheng)(sheng)壓(ya)達到(dao)(dao)一(yi)(yi)定值時,氣(qi)(qi)(qi)泡迅速(su)增加,然后突然關閉(bi)(bi)。并在(zai)(zai)氣(qi)(qi)(qi)泡閉(bi)(bi)合(he)時產生(sheng)沖擊波(bo)(bo),在(zai)(zai)其周圍產生(sheng)上千個(ge)大氣(qi)(qi)(qi)壓(ya),破壞不溶(rong)性污(wu)物而使(shi)他們(men)分散于(yu)清(qing)(qing)洗(xi)(xi)液中(zhong)(zhong),當(dang)團(tuan)體(ti)(ti)粒子(zi)(zi)被油(you)(you)污(wu)裹著而黏附在(zai)(zai)清(qing)(qing)洗(xi)(xi)件表面(mian)時,油(you)(you)被乳(ru)化(hua),固體(ti)(ti)粒子(zi)(zi)及脫離,從而達到(dao)(dao)清(qing)(qing)洗(xi)(xi)件凈化(hua)的(de)目的(de)。在(zai)(zai)這種被稱(cheng)之為(wei)(wei)(wei)“空(kong)化(hua)”效(xiao)應(ying)的(de)過(guo)程中(zhong)(zhong),氣(qi)(qi)(qi)泡閉(bi)(bi)合(he)可形成(cheng)(cheng)(cheng)(cheng)幾(ji)百度的(de)高(gao)溫和超(chao)(chao)過(guo)1000個(ge)氣(qi)(qi)(qi)壓(ya)的(de)瞬間高(gao)壓(ya)。超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)清(qing)(qing)洗(xi)(xi)機的(de)優(you)點是(shi):超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)清(qing)(qing)洗(xi)(xi)效(xiao)果好,操作(zuo)簡單(dan)。人們(men)聽到(dao)(dao)的(de)聲(sheng)(sheng)音是(shi)20-20000Hz頻(pin)(pin)率高(gao)于(yu)20000Hz的(de)聲(sheng)(sheng)波(bo)(bo)信號(hao),稱(cheng)為(wei)(wei)(wei)超(chao)(chao)聲(sheng)(sheng)波(bo)(bo)。一(yi)(yi)個(ge)原(yuan)因是(shi)液體(ti)(ti)中(zhong)(zhong)的(de)局部拉(la)應(ying)力(li)形成(cheng)(cheng)(cheng)(cheng)負壓(ya),壓(ya)力(li)的(de)減小(xiao)(xiao)使(shi)原(yuan)溶(rong)解氣(qi)(qi)(qi)體(ti)(ti)飽(bao)和,但從液體(ti)(ti)中(zhong)(zhong)逃逸(yi),成(cheng)(cheng)(cheng)(cheng)為(wei)(wei)(wei)一(yi)(yi)個(ge)小(xiao)(xiao)泡;另一(yi)(yi)個(ge)原(yuan)因是(shi)強拉(la)應(ying)力(li)將(jiang)液體(ti)(ti)撕裂成(cheng)(cheng)(cheng)(cheng)一(yi)(yi)個(ge)孔,稱(cheng)為(wei)(wei)(wei)空(kong)化(hua)。
發布時間:
2020
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01
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14
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