選(xuan)用(yong)(yong)(yong)(yong)(yong)適(shi)當的清(qing)(qing)洗(xi)(xi)(xi)劑對(dui)超聲(sheng)波清(qing)(qing)洗(xi)(xi)(xi)效(xiao)果影響較大。超聲(sheng)清(qing)(qing)洗(xi)(xi)(xi)的作用(yong)(yong)(yong)(yong)(yong)機(ji)制主(zhu)要是空化(hua)(hua)作用(yong)(yong)(yong)(yong)(yong),除物質的主(zhu)要成(cheng)分(fen)、油(you)垢或機(ji)體(ti)自身(shen)的機(ji)械雜質外,選(xuan)擇的清(qing)(qing)洗(xi)(xi)(xi)液(ye)必須考慮(lv)到(dao)清(qing)(qing)洗(xi)(xi)(xi)液(ye)的粘度和表(biao)面(mian)張(zhang)力,才能起到(dao)空化(hua)(hua)作用(yong)(yong)(yong)(yong)(yong)。超聲(sheng)清(qing)(qing)洗(xi)(xi)(xi)對(dui)清(qing)(qing)洗(xi)(xi)(xi)質量的要求很高,經常使(shi)用(yong)(yong)(yong)(yong)(yong)幾種不(bu)(bu)同(tong)的清(qing)(qing)洗(xi)(xi)(xi)液(ye)在不(bu)(bu)同(tong)的槽中或依次進行,每一(yi)種清(qing)(qing)洗(xi)(xi)(xi)液(ye)的作用(yong)(yong)(yong)(yong)(yong)都(dou)不(bu)(bu)一(yi)樣。舉例來說,三(san)氯乙烯、氫氧化(hua)(hua)鈉水溶(rong)液(ye)、合成(cheng)洗(xi)(xi)(xi)滌劑、水、酒精先(xian)后用(yong)(yong)(yong)(yong)(yong)來清(qing)(qing)洗(xi)(xi)(xi)光學元件,丙酮(tong)及1*混合清(qing)(qing)洗(xi)(xi)(xi)液(ye),用(yong)(yong)(yong)(yong)(yong)來清(qing)(qing)洗(xi)(xi)(xi)半(ban)導體(ti)設備(bei),用(yong)(yong)(yong)(yong)(yong)2*的清(qing)(qing)洗(xi)(xi)(xi)液(ye)和去離子水,經過(guo)多次清(qing)(qing)洗(xi)(xi)(xi),零(ling)件表(biao)面(mian)達(da)到(dao)預期效(xiao)果。
最(zui)常見的(de)(de)(de)(de)方式就是(shi)將超(chao)聲(sheng)(sheng)波(bo)(bo)(bo)(bo)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)浸(jin)入(ru)槽(cao)(cao)(cao)內(nei),在(zai)(zai)含有清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)液(ye)的(de)(de)(de)(de)超(chao)聲(sheng)(sheng)波(bo)(bo)(bo)(bo)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)槽(cao)(cao)(cao)內(nei),由超(chao)聲(sheng)(sheng)波(bo)(bo)(bo)(bo)換能器產生的(de)(de)(de)(de)超(chao)聲(sheng)(sheng)波(bo)(bo)(bo)(bo)振(zhen)動由清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)槽(cao)(cao)(cao)底部(bu)輻射(she)到(dao)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)液(ye)中(zhong)。尤其(qi)適用(yong)(yong)(yong)于(yu)中(zhong)小型零(ling)件(jian)。對大(da)小、重量(liang)較大(da)的(de)(de)(de)(de)零(ling)件(jian),可(ke)采用(yong)(yong)(yong)局部(bu)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)的(de)(de)(de)(de)方法(fa),即(ji)(ji)將零(ling)件(jian)浸(jin)入(ru)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)液(ye)中(zhong)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi),未清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)部(bu)分浸(jin)在(zai)(zai)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)液(ye)中(zhong),直至完全清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)。另外(wai)一(yi)種(zhong)方法(fa)是(shi)根據大(da)尺寸零(ling)件(jian)形(xing)狀及(ji)局部(bu)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)的(de)(de)(de)(de)需要(yao),設計特殊形(xing)狀的(de)(de)(de)(de)超(chao)聲(sheng)(sheng)換能器,實現局部(bu)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)。對具有嚴格清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)要(yao)求的(de)(de)(de)(de)零(ling)件(jian),在(zai)(zai)不(bu)同(tong)的(de)(de)(de)(de)槽(cao)(cao)(cao)內(nei)采用(yong)(yong)(yong)多種(zhong)不(bu)同(tong)的(de)(de)(de)(de)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)液(ye)進行超(chao)聲(sheng)(sheng)波(bo)(bo)(bo)(bo)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)。另外(wai),還可(ke)以使用(yong)(yong)(yong)其(qi)他的(de)(de)(de)(de)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)方法(fa),例如(ru)加熱浸(jin)洗(xi)(xi)(xi)(xi)(xi)(xi),超(chao)聲(sheng)(sheng)波(bo)(bo)(bo)(bo)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)等(deng)。對含有特厚油脂的(de)(de)(de)(de)零(ling)件(jian),一(yi)般先用(yong)(yong)(yong)熱浸(jin)洗(xi)(xi)(xi)(xi)(xi)(xi)或(huo)高溫(wen)噴洗(xi)(xi)(xi)(xi)(xi)(xi),再用(yong)(yong)(yong)超(chao)聲(sheng)(sheng)波(bo)(bo)(bo)(bo)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)。對某些零(ling)件(jian)形(xing)狀過于(yu)復雜,如(ru)孔(kong)(kong)、孔(kong)(kong)角不(bu)一(yi)致等(deng),可(ke)采用(yong)(yong)(yong)一(yi)次(ci)多次(ci)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi),即(ji)(ji)在(zai)(zai)不(bu)同(tong)超(chao)聲(sheng)(sheng)頻率下清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)。
清(qing)(qing)洗(xi)(xi)(xi)液的(de)(de)(de)超聲振(zhen)(zhen)動(dong)(dong)頻(pin)率(lv)對(dui)(dui)超聲清(qing)(qing)洗(xi)(xi)(xi)效果(guo)有很大(da)的(de)(de)(de)影響,這(zhe)是因為它對(dui)(dui)空(kong)(kong)化的(de)(de)(de)影響很大(da)。通(tong)常用在(zai)(zai)20kHz左右(you)。約20kHz時(shi)(shi)容易產生氣穴(xue),清(qing)(qing)洗(xi)(xi)(xi)效果(guo)明(ming)顯。但是對(dui)(dui)表面要求(qiu)高、孔徑或縫隙小的(de)(de)(de)產品,宜使用短波、能量(liang)集中的(de)(de)(de)高頻(pin)超聲波清(qing)(qing)洗(xi)(xi)(xi),有時(shi)(shi)頻(pin)率(lv)可達800KHz。但高頻(pin)超聲振(zhen)(zhen)動(dong)(dong)在(zai)(zai)清(qing)(qing)洗(xi)(xi)(xi)液中衰(shuai)減大(da),作用距離短,空(kong)(kong)化強度小,清(qing)(qing)洗(xi)(xi)(xi)效率(lv)低。另(ling)外,由于高頻(pin)指向(xiang)性(xing)引起的(de)(de)(de)“陰影”區域,部分部件不能清(qing)(qing)潔(jie)。采用無(wu)頻(pin)率(lv)跟蹤超聲清(qing)(qing)洗(xi)(xi)(xi)裝置時(shi)(shi),需要對(dui)(dui)發生器頻(pin)率(lv)進行調節,使其輸(shu)出信號的(de)(de)(de)頻(pin)率(lv)與傳感(gan)器的(de)(de)(de)固(gu)有振(zhen)(zhen)動(dong)(dong)頻(pin)率(lv)一(yi)(yi)(yi)致。這(zhe)時(shi)(shi),空(kong)(kong)泡效應最(zui)強。清(qing)(qing)潔(jie)液中可見大(da)量(liang)積(ji)聚的(de)(de)(de)白色物質。手指頭像一(yi)(yi)(yi)根針一(yi)(yi)(yi)樣。
高功率(lv)(lv)(lv)密(mi)(mi)(mi)度(du)的(de)(de)超(chao)聲清(qing)洗(xi)是提高超(chao)聲清(qing)洗(xi)效率(lv)(lv)(lv)的(de)(de)有(you)效途徑(jing)。然(ran)而,功率(lv)(lv)(lv)密(mi)(mi)(mi)度(du)過高會由于氣蝕(shi)過強(qiang)而對(dui)工(gong)(gong)件(jian)表面造成(cheng)侵蝕(shi)(即氣蝕(shi)腐蝕(shi)),對(dui)工(gong)(gong)件(jian)造成(cheng)損害,尤其是對(dui)于有(you)各(ge)種涂層的(de)(de)工(gong)(gong)件(jian)或(huo)鋁及鋁合金工(gong)(gong)件(jian)。能量密(mi)(mi)(mi)度(du)過大(da)也不(bu)會產(chan)生飽和效應。對(dui)油污(wu)嚴重(zhong)、形狀復雜(za)、深(shen)孔盲孔的(de)(de)零件(jian),清(qing)洗(xi)槽要深(shen)、清(qing)洗(xi)液粘度(du)大(da)、功率(lv)(lv)(lv)密(mi)(mi)(mi)度(du)大(da)。高頻率(lv)(lv)(lv)超(chao)聲清(qing)洗(xi)功率(lv)(lv)(lv)密(mi)(mi)(mi)度(du)也很大(da)。能量密(mi)(mi)(mi)度(du)可在(zai)用水或(huo)酒精(jing)清(qing)洗(xi)或(huo)漂洗(xi)時降低(di)。
由(you)于(yu)清洗(xi)液的(de)(de)空(kong)化程度與溫度有關,溫度的(de)(de)升高有利(li)于(yu)汽蝕,但蒸氣壓力也相應增(zeng)大。溫度過高會使氣穴減少。所以必須保持一(yi)定的(de)(de)溫度范(fan)圍(wei)。例如水(shui)溶劑清洗(xi)液一(yi)般在45℃左(zuo)右(you),三氯乙(yi)烯清洗(xi)液約75℃,水(shui)約60℃。對揮發性和易(yi)燃的(de)(de)清洗(xi)液,溫度不宜過高。
超聲清(qing)(qing)洗(xi)(xi)的(de)(de)(de)效(xiao)(xiao)果和質量取決于超聲清(qing)(qing)洗(xi)(xi)的(de)(de)(de)時間。對(dui)于清(qing)(qing)洗(xi)(xi)質量的(de)(de)(de)要求,時間過(guo)短。但(dan)是,零(ling)件(jian)表(biao)面(mian)(mian)氣蝕(shi)腐蝕(shi)嚴(yan)重,從而影響(xiang)零(ling)件(jian)的(de)(de)(de)質量,延長(chang)使(shi)用壽命,不(bu)(bu)僅降低(di)生產效(xiao)(xiao)率。油污染(ran)嚴(yan)重,形狀復雜的(de)(de)(de)零(ling)件(jian),清(qing)(qing)洗(xi)(xi)時間要長(chang)。不(bu)(bu)同涂層的(de)(de)(de)鋁及(ji)鋁合金零(ling)件(jian)的(de)(de)(de)清(qing)(qing)洗(xi)(xi)時間不(bu)(bu)宜過(guo)長(chang)。一般(ban)說來,表(biao)面(mian)(mian)光(guang)潔度高的(de)(de)(de)零(ling)件(jian)的(de)(de)(de)油污較(jiao)少(shao),清(qing)(qing)洗(xi)(xi)時間不(bu)(bu)宜過(guo)長(chang)。特(te)定的(de)(de)(de)清(qing)(qing)潔時間要通過(guo)實驗確定。
為改善清(qing)洗(xi)(xi)效果,并確保超聲(sheng)波清(qing)洗(xi)(xi)裝(zhuang)置(zhi)(zhi)的(de)正常(chang)使用,部件在(zai)(zai)清(qing)洗(xi)(xi)槽(cao)(cao)中的(de)位(wei)置(zhi)(zhi)應引(yin)起(qi)重視。開始,要避免在(zai)(zai)超聲(sheng)振(zhen)動(dong)(dong)輻(fu)(fu)射面直接擠壓零件,使輻(fu)(fu)射面無(wu)法(fa)產生(sheng)預期(qi)的(de)振(zhen)動(dong)(dong),導致清(qing)洗(xi)(xi)裝(zhuang)置(zhi)(zhi)無(wu)法(fa)正常(chang)工作。對較(jiao)重的(de)部件尤其重要。部件由專用工具吊在(zai)(zai)清(qing)洗(xi)(xi)槽(cao)(cao)內,并盡可(ke)能接近表面。第二,關鍵的(de)清(qing)洗(xi)(xi)部位(wei)必須(xu)對準超聲(sheng)波源。三是(shi)要考慮清(qing)潔后污物能夠順利排放。第四,使清(qing)洗(xi)(xi)液在(zai)(zai)清(qing)洗(xi)(xi)槽(cao)(cao)內的(de)對流(liu)。使用循(xun)環(huan)連續補(bu)充清(qing)洗(xi)(xi)液的(de)方法(fa)時,進(jin)液速度不(bu)宜過快,否(fou)則由于補(bu)充的(de)清(qing)洗(xi)(xi)液中氣體較(jiao)多,氣穴就(jiu)會減弱(ruo)。
在盲(mang)(mang)孔清洗時,應(ying)先(xian)在盲(mang)(mang)孔內注入(ru)清洗液(ye),然后(hou)將(jiang)盲(mang)(mang)孔對準(zhun)超聲源。清潔(jie)時,要(yao)始終(zhong)將(jiang)清洗液(ye)注入(ru)孔內,以達到(dao)顯著的效果。
超(chao)音(yin)波清洗槽(cao)應(ying)避免撞擊及快速冷卻(que)加(jia)熱,以(yi)免損壞與傳感器的連(lian)接。對某些零件進行超(chao)聲(sheng)清洗時,應(ying)進行消(xiao)磁(ci)處理,否則(ze)殘余鐵屑不易(yi)清除。
超(chao)聲清洗(xi)質(zhi)量(liang)檢查主(zhu)要(yao)是(shi)檢查被(bei)清潔零件表面的污垢殘(can)留。
廣東固特(te)超聲股份(fen)有(you)限公司現已(yi)成為集超聲(sheng)(sheng)(sheng)波(bo)應用(yong)技術研究、超聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)機(ji)設備研發、生產、銷售和技術服(fu)務(wu)于一體的國(guo)家(jia)高新技術企業(ye)。公(gong)司在超聲(sheng)(sheng)(sheng)波(bo)行業(ye)中(zhong)占有一定的地位,作為業(ye)界(jie)公(gong)認的超聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)技術解決(jue)方案專(zhuan)家(jia),固特超聲(sheng)(sheng)(sheng)于2015年(nian)率先在新三板掛牌上市。是擁有專(zhuan)業(ye)研發團(tuan)隊的超聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)機(ji)廠(chang)家(jia),率先提出健(jian)康家(jia)用(yong)超聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)機(ji)品類并開(kai)發了百款產品,是商用(yong)超聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)機(ji)、工業(ye)超聲(sheng)(sheng)(sheng)波(bo)清(qing)(qing)洗(xi)機(ji)、超聲(sheng)(sheng)(sheng)環(huan)保設備尤其是超聲(sheng)(sheng)(sheng)除垢設備領域行業(ye)翹楚(chu),擅長產業(ye)資(zi)本(ben)和金融資(zi)本(ben)的對接,致力于成為超聲(sheng)(sheng)(sheng)清(qing)(qing)洗(xi)綜合服(fu)務(wu)領軍企業(ye)。