超(chao)(chao)聲(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)在(zai)(zai)(zai)液(ye)(ye)(ye)體(ti)中(zhong)(zhong)傳(chuan)播,使(shi)液(ye)(ye)(ye)體(ti)和清(qing)(qing)洗(xi)(xi)槽在(zai)(zai)(zai)超(chao)(chao)聲(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)頻率(lv)(lv)(lv)下(xia)振(zhen)動,液(ye)(ye)(ye)體(ti)和清(qing)(qing)洗(xi)(xi)槽在(zai)(zai)(zai)自(zi)己的(de)(de)(de)固有(you)頻率(lv)(lv)(lv)(即聲(sheng)(sheng)(sheng)(sheng)(sheng)頻)下(xia)振(zhen)動,人們聽到(dao)嗡(weng)嗡(weng)聲(sheng)(sheng)(sheng)(sheng)(sheng)。沿著(zhu)清(qing)(qing)洗(xi)(xi)行業的(de)(de)(de)發展,越(yue)來(lai)越(yue)多的(de)(de)(de)行業和企業使(shi)用超(chao)(chao)聲(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)清(qing)(qing)洗(xi)(xi)機(ji)。依(yi)據(ju)超(chao)(chao)聲(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)清(qing)(qing)洗(xi)(xi)器(qi)的(de)(de)(de)原(yuan)(yuan)理(li),來(lai)源于超(chao)(chao)聲(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)換能(neng)器(qi)的(de)(de)(de)高(gao)頻率(lv)(lv)(lv)振(zhen)動數(shu)據(ju)信(xin)號(hao)根據(ju)超(chao)(chao)聲(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)換能(neng)器(qi)轉(zhuan)換為(wei)高(gao)頻率(lv)(lv)(lv)現代控制(zhi)理(li)論,散播到(dao)做(zuo)為(wei)物(wu)質(zhi)的(de)(de)(de)清(qing)(qing)理(li)有(you)機(ji)溶劑中(zhong)(zhong),超(chao)(chao)音(yin)波(bo)(bo)在(zai)(zai)(zai)清(qing)(qing)潔液(ye)(ye)(ye)中(zhong)(zhong)粗密地前(qian)后左右放射性(xing),使(shi)液(ye)(ye)(ye)體(ti)流(liu)動性(xing)而(er)造成(cheng)(cheng)數(shu)十萬(wan)米的(de)(de)(de)直徑50-500μm的(de)(de)(de)細微(wei)汽泡(pao)(pao)(pao),液(ye)(ye)(ye)體(ti)中(zhong)(zhong)存(cun)有(you)的(de)(de)(de)細微(wei)汽泡(pao)(pao)(pao)在(zai)(zai)(zai)音(yin)場中(zhong)(zhong)振(zhen)動。這(zhe)(zhe)些氣(qi)(qi)(qi)泡(pao)(pao)(pao)形(xing)成(cheng)(cheng)并生(sheng)長在(zai)(zai)(zai)超(chao)(chao)聲(sheng)(sheng)(sheng)(sheng)(sheng)縱向(xiang)傳(chuan)輸負壓(ya)(ya)(ya)區,而(er)在(zai)(zai)(zai)正(zheng)壓(ya)(ya)(ya)區,當(dang)聲(sheng)(sheng)(sheng)(sheng)(sheng)壓(ya)(ya)(ya)達到(dao)一定值時,氣(qi)(qi)(qi)泡(pao)(pao)(pao)迅速(su)增加,然后突(tu)然關閉。并在(zai)(zai)(zai)氣(qi)(qi)(qi)泡(pao)(pao)(pao)閉合(he)(he)時產生(sheng)沖擊波(bo)(bo),在(zai)(zai)(zai)其(qi)周圍產生(sheng)上千(qian)個(ge)(ge)大氣(qi)(qi)(qi)壓(ya)(ya)(ya),破壞不(bu)溶性(xing)污(wu)物(wu)而(er)使(shi)他們分(fen)散于清(qing)(qing)洗(xi)(xi)液(ye)(ye)(ye)中(zhong)(zhong),當(dang)團體(ti)粒子被油污(wu)裹著(zhu)而(er)黏(nian)附在(zai)(zai)(zai)清(qing)(qing)洗(xi)(xi)件表面時,油被乳化,固體(ti)粒子及脫離,從而(er)達到(dao)清(qing)(qing)洗(xi)(xi)件凈(jing)化的(de)(de)(de)目的(de)(de)(de)。在(zai)(zai)(zai)這(zhe)(zhe)種被稱(cheng)之(zhi)為(wei)“空化”效應的(de)(de)(de)過程中(zhong)(zhong),氣(qi)(qi)(qi)泡(pao)(pao)(pao)閉合(he)(he)可形(xing)成(cheng)(cheng)幾百度的(de)(de)(de)高(gao)溫和超(chao)(chao)過1000個(ge)(ge)氣(qi)(qi)(qi)壓(ya)(ya)(ya)的(de)(de)(de)瞬(shun)間(jian)高(gao)壓(ya)(ya)(ya)。超(chao)(chao)聲(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)清(qing)(qing)洗(xi)(xi)機(ji)的(de)(de)(de)優點(dian)是(shi)(shi)(shi):超(chao)(chao)聲(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)清(qing)(qing)洗(xi)(xi)效果好,操作簡(jian)單。人們聽到(dao)的(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)音(yin)是(shi)(shi)(shi)20-20000Hz頻率(lv)(lv)(lv)高(gao)于20000Hz的(de)(de)(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)信(xin)號(hao),稱(cheng)為(wei)超(chao)(chao)聲(sheng)(sheng)(sheng)(sheng)(sheng)波(bo)(bo)。一個(ge)(ge)原(yuan)(yuan)因(yin)是(shi)(shi)(shi)液(ye)(ye)(ye)體(ti)中(zhong)(zhong)的(de)(de)(de)局(ju)部(bu)拉應力(li)形(xing)成(cheng)(cheng)負壓(ya)(ya)(ya),壓(ya)(ya)(ya)力(li)的(de)(de)(de)減小使(shi)原(yuan)(yuan)溶解氣(qi)(qi)(qi)體(ti)飽(bao)和,但從液(ye)(ye)(ye)體(ti)中(zhong)(zhong)逃逸,成(cheng)(cheng)為(wei)一個(ge)(ge)小泡(pao)(pao)(pao);另一個(ge)(ge)原(yuan)(yuan)因(yin)是(shi)(shi)(shi)強拉應力(li)將液(ye)(ye)(ye)體(ti)撕裂成(cheng)(cheng)一個(ge)(ge)孔,稱(cheng)為(wei)空化。
發(fa)布時間:
2020
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01
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14
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