選(xuan)用(yong)(yong)(yong)適當(dang)的(de)(de)清(qing)(qing)(qing)洗(xi)(xi)(xi)劑對超(chao)聲波清(qing)(qing)(qing)洗(xi)(xi)(xi)效果(guo)影響較大。超(chao)聲清(qing)(qing)(qing)洗(xi)(xi)(xi)的(de)(de)作(zuo)用(yong)(yong)(yong)機制主要(yao)是空化(hua)作(zuo)用(yong)(yong)(yong),除物(wu)質(zhi)(zhi)的(de)(de)主要(yao)成(cheng)分、油垢或(huo)機體自(zi)身的(de)(de)機械雜質(zhi)(zhi)外(wai),選(xuan)擇(ze)的(de)(de)清(qing)(qing)(qing)洗(xi)(xi)(xi)液(ye)必須考慮到清(qing)(qing)(qing)洗(xi)(xi)(xi)液(ye)的(de)(de)粘度和表(biao)面張力,才能起到空化(hua)作(zuo)用(yong)(yong)(yong)。超(chao)聲清(qing)(qing)(qing)洗(xi)(xi)(xi)對清(qing)(qing)(qing)洗(xi)(xi)(xi)質(zhi)(zhi)量的(de)(de)要(yao)求(qiu)很高,經(jing)常使(shi)用(yong)(yong)(yong)幾(ji)種(zhong)不(bu)(bu)同的(de)(de)清(qing)(qing)(qing)洗(xi)(xi)(xi)液(ye)在不(bu)(bu)同的(de)(de)槽(cao)中或(huo)依次進行(xing),每一種(zhong)清(qing)(qing)(qing)洗(xi)(xi)(xi)液(ye)的(de)(de)作(zuo)用(yong)(yong)(yong)都不(bu)(bu)一樣。舉(ju)例(li)來說,三氯乙烯、氫氧化(hua)鈉水(shui)溶液(ye)、合(he)成(cheng)洗(xi)(xi)(xi)滌劑、水(shui)、酒(jiu)精先后用(yong)(yong)(yong)來清(qing)(qing)(qing)洗(xi)(xi)(xi)光學元件(jian),丙酮及1*混合(he)清(qing)(qing)(qing)洗(xi)(xi)(xi)液(ye),用(yong)(yong)(yong)來清(qing)(qing)(qing)洗(xi)(xi)(xi)半導體設備,用(yong)(yong)(yong)2*的(de)(de)清(qing)(qing)(qing)洗(xi)(xi)(xi)液(ye)和去離子水(shui),經(jing)過多次清(qing)(qing)(qing)洗(xi)(xi)(xi),零件(jian)表(biao)面達到預期效果(guo)。
最常(chang)見的(de)方式(shi)就是將超(chao)聲(sheng)(sheng)波(bo)(bo)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)浸(jin)入槽(cao)內(nei),在含(han)有(you)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液的(de)超(chao)聲(sheng)(sheng)波(bo)(bo)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)槽(cao)內(nei),由超(chao)聲(sheng)(sheng)波(bo)(bo)換能(neng)器產(chan)生的(de)超(chao)聲(sheng)(sheng)波(bo)(bo)振動由清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)槽(cao)底(di)部輻射到清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液中(zhong)(zhong)。尤(you)其適(shi)用(yong)(yong)于(yu)中(zhong)(zhong)小(xiao)(xiao)型零(ling)件(jian)(jian)。對大小(xiao)(xiao)、重量較(jiao)大的(de)零(ling)件(jian)(jian),可采用(yong)(yong)局(ju)部清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)的(de)方法(fa)(fa),即將零(ling)件(jian)(jian)浸(jin)入清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液中(zhong)(zhong)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi),未清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)部分(fen)浸(jin)在清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液中(zhong)(zhong),直至完全清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)。另外一種(zhong)方法(fa)(fa)是根(gen)據大尺寸零(ling)件(jian)(jian)形狀及(ji)局(ju)部清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)的(de)需要,設(she)計特殊形狀的(de)超(chao)聲(sheng)(sheng)換能(neng)器,實現局(ju)部清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)。對具有(you)嚴格清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)要求的(de)零(ling)件(jian)(jian),在不同的(de)槽(cao)內(nei)采用(yong)(yong)多種(zhong)不同的(de)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液進行超(chao)聲(sheng)(sheng)波(bo)(bo)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)。另外,還可以使用(yong)(yong)其他的(de)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)方法(fa)(fa),例如(ru)加熱(re)浸(jin)洗(xi)(xi)(xi)(xi)(xi),超(chao)聲(sheng)(sheng)波(bo)(bo)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)等(deng)。對含(han)有(you)特厚(hou)油(you)脂的(de)零(ling)件(jian)(jian),一般先用(yong)(yong)熱(re)浸(jin)洗(xi)(xi)(xi)(xi)(xi)或(huo)高溫噴(pen)洗(xi)(xi)(xi)(xi)(xi),再用(yong)(yong)超(chao)聲(sheng)(sheng)波(bo)(bo)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)。對某些零(ling)件(jian)(jian)形狀過于(yu)復雜,如(ru)孔、孔角不一致等(deng),可采用(yong)(yong)一次多次清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi),即在不同超(chao)聲(sheng)(sheng)頻率下清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)。
清(qing)(qing)(qing)洗(xi)(xi)液的(de)超(chao)聲(sheng)振動(dong)(dong)頻率(lv)對(dui)(dui)超(chao)聲(sheng)清(qing)(qing)(qing)洗(xi)(xi)效(xiao)果有(you)(you)很大的(de)影(ying)響,這是因為它對(dui)(dui)空化(hua)的(de)影(ying)響很大。通(tong)常用(yong)(yong)在20kHz左右。約20kHz時(shi)容易(yi)產生氣穴,清(qing)(qing)(qing)洗(xi)(xi)效(xiao)果明顯。但(dan)(dan)是對(dui)(dui)表面要(yao)(yao)求高(gao)、孔(kong)徑或縫(feng)隙小的(de)產品(pin),宜使用(yong)(yong)短(duan)波(bo)、能量(liang)集中的(de)高(gao)頻超(chao)聲(sheng)波(bo)清(qing)(qing)(qing)洗(xi)(xi),有(you)(you)時(shi)頻率(lv)可(ke)達800KHz。但(dan)(dan)高(gao)頻超(chao)聲(sheng)振動(dong)(dong)在清(qing)(qing)(qing)洗(xi)(xi)液中衰減大,作用(yong)(yong)距離短(duan),空化(hua)強(qiang)度小,清(qing)(qing)(qing)洗(xi)(xi)效(xiao)率(lv)低。另外,由于(yu)高(gao)頻指向(xiang)性引(yin)起的(de)“陰影(ying)”區域,部(bu)分部(bu)件不能清(qing)(qing)(qing)潔。采用(yong)(yong)無頻率(lv)跟蹤超(chao)聲(sheng)清(qing)(qing)(qing)洗(xi)(xi)裝置時(shi),需要(yao)(yao)對(dui)(dui)發生器頻率(lv)進(jin)行調節(jie),使其輸出信(xin)號的(de)頻率(lv)與(yu)傳感器的(de)固有(you)(you)振動(dong)(dong)頻率(lv)一致。這時(shi),空泡效(xiao)應最強(qiang)。清(qing)(qing)(qing)潔液中可(ke)見大量(liang)積聚的(de)白色物質。手指頭像一根(gen)針一樣。
高(gao)功率(lv)密(mi)度(du)(du)(du)的超聲清(qing)(qing)洗(xi)(xi)是(shi)提高(gao)超聲清(qing)(qing)洗(xi)(xi)效(xiao)率(lv)的有效(xiao)途徑。然而(er),功率(lv)密(mi)度(du)(du)(du)過(guo)(guo)高(gao)會由于氣蝕(shi)(shi)過(guo)(guo)強而(er)對(dui)(dui)(dui)工(gong)(gong)(gong)件(jian)(jian)表面(mian)造(zao)成(cheng)侵(qin)蝕(shi)(shi)(即(ji)氣蝕(shi)(shi)腐蝕(shi)(shi)),對(dui)(dui)(dui)工(gong)(gong)(gong)件(jian)(jian)造(zao)成(cheng)損害,尤其(qi)是(shi)對(dui)(dui)(dui)于有各種涂層的工(gong)(gong)(gong)件(jian)(jian)或(huo)鋁及鋁合金工(gong)(gong)(gong)件(jian)(jian)。能(neng)量密(mi)度(du)(du)(du)過(guo)(guo)大也(ye)(ye)不會產生飽和效(xiao)應(ying)。對(dui)(dui)(dui)油污嚴重(zhong)、形狀復雜、深(shen)孔盲孔的零件(jian)(jian),清(qing)(qing)洗(xi)(xi)槽要深(shen)、清(qing)(qing)洗(xi)(xi)液粘度(du)(du)(du)大、功率(lv)密(mi)度(du)(du)(du)大。高(gao)頻率(lv)超聲清(qing)(qing)洗(xi)(xi)功率(lv)密(mi)度(du)(du)(du)也(ye)(ye)很大。能(neng)量密(mi)度(du)(du)(du)可在用水或(huo)酒精清(qing)(qing)洗(xi)(xi)或(huo)漂洗(xi)(xi)時(shi)降低。
由于(yu)清(qing)洗(xi)(xi)液的空化程度(du)與溫(wen)度(du)有關,溫(wen)度(du)的升高(gao)有利于(yu)汽蝕,但(dan)蒸氣(qi)壓力也相(xiang)應增大(da)。溫(wen)度(du)過高(gao)會(hui)使氣(qi)穴減少。所(suo)以(yi)必須(xu)保(bao)持一定的溫(wen)度(du)范圍。例如水(shui)(shui)溶劑清(qing)洗(xi)(xi)液一般在45℃左右,三氯乙烯清(qing)洗(xi)(xi)液約75℃,水(shui)(shui)約60℃。對揮發性和易燃(ran)的清(qing)洗(xi)(xi)液,溫(wen)度(du)不(bu)宜過高(gao)。
超聲清(qing)(qing)洗(xi)的(de)效果和質(zhi)量(liang)取決于(yu)超聲清(qing)(qing)洗(xi)的(de)時(shi)(shi)(shi)間(jian)。對于(yu)清(qing)(qing)洗(xi)質(zhi)量(liang)的(de)要(yao)求,時(shi)(shi)(shi)間(jian)過短。但是,零件表(biao)面(mian)氣蝕腐蝕嚴重(zhong),從而影響零件的(de)質(zhi)量(liang),延長使(shi)用壽命,不僅降低生產效率。油(you)污(wu)染(ran)嚴重(zhong),形狀復(fu)雜的(de)零件,清(qing)(qing)洗(xi)時(shi)(shi)(shi)間(jian)要(yao)長。不同涂層的(de)鋁及鋁合金(jin)零件的(de)清(qing)(qing)洗(xi)時(shi)(shi)(shi)間(jian)不宜(yi)過長。一般說(shuo)來(lai),表(biao)面(mian)光潔度高(gao)的(de)零件的(de)油(you)污(wu)較少,清(qing)(qing)洗(xi)時(shi)(shi)(shi)間(jian)不宜(yi)過長。特定(ding)的(de)清(qing)(qing)潔時(shi)(shi)(shi)間(jian)要(yao)通(tong)過實(shi)驗確(que)定(ding)。
為改善清(qing)洗效果,并(bing)確保(bao)超(chao)聲(sheng)波(bo)清(qing)洗裝置(zhi)的(de)(de)正常使用(yong),部(bu)件(jian)(jian)(jian)在(zai)清(qing)洗槽(cao)中(zhong)的(de)(de)位置(zhi)應引起重視。開始,要避免在(zai)超(chao)聲(sheng)振動(dong)輻(fu)射面直接擠壓零(ling)件(jian)(jian)(jian),使輻(fu)射面無法產生預(yu)期的(de)(de)振動(dong),導(dao)致清(qing)洗裝置(zhi)無法正常工(gong)(gong)作。對(dui)較(jiao)重的(de)(de)部(bu)件(jian)(jian)(jian)尤其重要。部(bu)件(jian)(jian)(jian)由(you)專用(yong)工(gong)(gong)具吊在(zai)清(qing)洗槽(cao)內,并(bing)盡可(ke)能(neng)接近表面。第二,關鍵的(de)(de)清(qing)洗部(bu)位必須對(dui)準超(chao)聲(sheng)波(bo)源。三是要考慮清(qing)潔后污物能(neng)夠(gou)順利排放。第四,使清(qing)洗液(ye)在(zai)清(qing)洗槽(cao)內的(de)(de)對(dui)流。使用(yong)循環連續補充清(qing)洗液(ye)的(de)(de)方法時,進液(ye)速度不宜過快,否則由(you)于補充的(de)(de)清(qing)洗液(ye)中(zhong)氣(qi)體較(jiao)多,氣(qi)穴(xue)就會(hui)減弱(ruo)。
在盲(mang)孔清(qing)(qing)洗時,應先(xian)在盲(mang)孔內(nei)注入清(qing)(qing)洗液(ye),然后將盲(mang)孔對準(zhun)超聲源。清(qing)(qing)潔時,要始終將清(qing)(qing)洗液(ye)注入孔內(nei),以達到(dao)顯著的效果(guo)。
超音(yin)波清洗(xi)槽應避免(mian)撞(zhuang)擊及快速冷卻加熱(re),以免(mian)損壞與傳感(gan)器的連接。對某些零件進行超聲清洗(xi)時,應進行消磁(ci)處理,否則殘(can)余鐵屑不易清除。
超聲清洗(xi)質量(liang)檢(jian)查主要是(shi)檢(jian)查被清潔零件表面的污垢殘留。
廣(guang)東固(gu)特(te)超聲股份有限(xian)公(gong)司現已成(cheng)為(wei)集(ji)超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)(bo)(bo)應用技(ji)術(shu)(shu)研(yan)究、超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)(bo)(bo)清(qing)洗(xi)機設(she)備研(yan)發(fa)、生產(chan)、銷(xiao)售(shou)和技(ji)術(shu)(shu)服務(wu)于(yu)一體的(de)(de)國家高新技(ji)術(shu)(shu)企業(ye)。公司(si)在(zai)(zai)超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)(bo)(bo)行(xing)業(ye)中占有一定的(de)(de)地位,作(zuo)為(wei)業(ye)界公認的(de)(de)超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)(bo)(bo)清(qing)洗(xi)技(ji)術(shu)(shu)解決方(fang)案專家,固(gu)特超(chao)(chao)聲(sheng)(sheng)(sheng)于(yu)2015年(nian)率先在(zai)(zai)新三板掛牌上(shang)市。是擁有專業(ye)研(yan)發(fa)團隊的(de)(de)超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)(bo)(bo)清(qing)洗(xi)機廠家,率先提出健康家用超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)(bo)(bo)清(qing)洗(xi)機品類并開發(fa)了百款產(chan)品,是商用超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)(bo)(bo)清(qing)洗(xi)機、工業(ye)超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)(bo)(bo)清(qing)洗(xi)機、超(chao)(chao)聲(sheng)(sheng)(sheng)環(huan)保(bao)設(she)備尤其是超(chao)(chao)聲(sheng)(sheng)(sheng)除垢設(she)備領(ling)域行(xing)業(ye)翹楚,擅長產(chan)業(ye)資本(ben)和金(jin)融(rong)資本(ben)的(de)(de)對接,致力于(yu)成(cheng)為(wei)超(chao)(chao)聲(sheng)(sheng)(sheng)清(qing)洗(xi)綜合服務(wu)領(ling)軍企業(ye)。