一(yi)、功(gong)(gong)率(lv)(lv)(lv)的(de)(de)選擇(ze) 超聲(sheng)波(bo)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)效(xiao)(xiao)果(guo)(guo)(guo)(guo)不一(yi)定(ding)(ding)與(功(gong)(gong)率(lv)(lv)(lv)×清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)時(shi)(shi)(shi)(shi)(shi)(shi)間)成(cheng)正比,有(you)時(shi)(shi)(shi)(shi)(shi)(shi)用(yong)(yong)小功(gong)(gong)率(lv)(lv)(lv),花費很長(chang)時(shi)(shi)(shi)(shi)(shi)(shi)間也沒有(you)清(qing)(qing)(qing)(qing)(qing)除污(wu)垢。而如果(guo)(guo)(guo)(guo)功(gong)(gong)率(lv)(lv)(lv)達(da)到(dao)一(yi)定(ding)(ding)數值,有(you)時(shi)(shi)(shi)(shi)(shi)(shi)很快便將污(wu)垢去除。若選擇(ze)功(gong)(gong)率(lv)(lv)(lv)太大(da),空(kong)化強度將大(da)大(da)增(zeng)加,清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)效(xiao)(xiao)果(guo)(guo)(guo)(guo)是提高了,但(dan)(dan)這時(shi)(shi)(shi)(shi)(shi)(shi)使(shi)較精密的(de)(de)零件(jian)(jian)也產(chan)生蝕點,得不償失,而且清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)缸底(di)部(bu)振(zhen)動(dong)板處空(kong)化嚴(yan)重,水(shui)點腐蝕也增(zeng)大(da),在采(cai)用(yong)(yong)三(san)氯乙烯等(deng)有(you)機溶(rong)劑時(shi)(shi)(shi)(shi)(shi)(shi),基本(ben)上(shang)(shang)(shang)沒有(you)問題,但(dan)(dan)采(cai)用(yong)(yong)水(shui)或水(shui)溶(rong)性清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)液(ye)時(shi)(shi)(shi)(shi)(shi)(shi),易于受到(dao)水(shui)點腐蝕,如果(guo)(guo)(guo)(guo)振(zhen)動(dong)板表(biao)面已(yi)受到(dao)傷痕,強功(gong)(gong)率(lv)(lv)(lv)下水(shui)底(di)產(chan)生空(kong)化腐蝕更嚴(yan)重,因(yin)此要按(an)實際使(shi)用(yong)(yong)情(qing)況選擇(ze)超聲(sheng)功(gong)(gong)率(lv)(lv)(lv)。 二、頻(pin)率(lv)(lv)(lv)的(de)(de)選擇(ze) 超聲(sheng)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)頻(pin)率(lv)(lv)(lv)從28kHz到(dao)120kHz之間,在使(shi)用(yong)(yong)水(shui)或水(shui)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)劑時(shi)(shi)(shi)(shi)(shi)(shi)由(you)空(kong)穴作用(yong)(yong)引起的(de)(de)物理清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)力顯然對(dui)低頻(pin)有(you)利,一(yi)般使(shi)用(yong)(yong)28-40kHz左右。對(dui)小間隙、狹縫、深孔的(de)(de)零件(jian)(jian)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi),用(yong)(yong)高頻(pin)(一(yi)般40kHz以(yi)上(shang)(shang)(shang))較好(hao)(hao),甚至幾百(bai)kHz。對(dui)鐘表(biao)零件(jian)(jian)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)時(shi)(shi)(shi)(shi)(shi)(shi),用(yong)(yong)400kHz。若用(yong)(yong)寬(kuan)帶調頻(pin)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi),效(xiao)(xiao)果(guo)(guo)(guo)(guo)更良好(hao)(hao)。 三(san)、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)籃(lan)的(de)(de)使(shi)用(yong)(yong) 在清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)小零件(jian)(jian)物品時(shi)(shi)(shi)(shi)(shi)(shi),常使(shi)用(yong)(yong)網(wang)籃(lan),由(you)于網(wang)眼要引起超聲(sheng)衰減,要特(te)別引起注(zhu)意。當(dang)頻(pin)率(lv)(lv)(lv)為28khz時(shi)(shi)(shi)(shi)(shi)(shi)使(shi)用(yong)(yong)10mm以(yi)上(shang)(shang)(shang)的(de)(de)網(wang)眼為好(hao)(hao)。 四(si)、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)液(ye)溫(wen)度的(de)(de)選擇(ze) 水(shui)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)液(ye)最(zui)適(shi)宜(yi)的(de)(de)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)溫(wen)度為40-60℃,尤其在天冷時(shi)(shi)(shi)(shi)(shi)(shi)若清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)液(ye)溫(wen)度低空(kong)化效(xiao)(xiao)應差,清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)效(xiao)(xiao)果(guo)(guo)(guo)(guo)也差。因(yin)此有(you)部(bu)分清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)機在清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)缸外邊繞(rao)上(shang)(shang)(shang)加熱電熱絲進行溫(wen)度控制(zhi),當(dang)溫(wen)度升高后空(kong)化易發生,所以(yi)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)...
發(fa)布(bu)時間:
2020
-
06
-
18
瀏覽次(ci)數:139