一(yi)、功(gong)率(lv)的選擇(ze) 超(chao)聲波清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)效(xiao)果(guo)不一(yi)定(ding)與(yu)(功(gong)率(lv)×清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)時(shi)(shi)間(jian))成(cheng)正比,有時(shi)(shi)用(yong)(yong)小功(gong)率(lv),花費很長時(shi)(shi)間(jian)也沒有清(qing)(qing)(qing)(qing)(qing)除(chu)污垢(gou)(gou)。而如果(guo)功(gong)率(lv)達到(dao)(dao)一(yi)定(ding)數(shu)值(zhi),有時(shi)(shi)很快便(bian)將污垢(gou)(gou)去除(chu)。若(ruo)選擇(ze)功(gong)率(lv)太大,空化(hua)強度(du)(du)將大大增(zeng)加,清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)效(xiao)果(guo)是提高了,但這時(shi)(shi)使較精(jing)密的零件(jian)(jian)也產(chan)生蝕點,得不償失,而且(qie)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)缸(gang)(gang)底部(bu)振動板處(chu)空化(hua)嚴(yan)重,水(shui)(shui)(shui)點腐(fu)蝕也增(zeng)大,在采用(yong)(yong)三(san)氯乙烯等有機溶劑時(shi)(shi),基本上(shang)沒有問(wen)題(ti),但采用(yong)(yong)水(shui)(shui)(shui)或水(shui)(shui)(shui)溶性清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液時(shi)(shi),易于(yu)受(shou)到(dao)(dao)水(shui)(shui)(shui)點腐(fu)蝕,如果(guo)振動板表面(mian)已受(shou)到(dao)(dao)傷痕,強功(gong)率(lv)下水(shui)(shui)(shui)底產(chan)生空化(hua)腐(fu)蝕更嚴(yan)重,因此要(yao)(yao)按(an)實際使用(yong)(yong)情況(kuang)選擇(ze)超(chao)聲功(gong)率(lv)。 二、頻(pin)(pin)率(lv)的選擇(ze) 超(chao)聲清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)頻(pin)(pin)率(lv)從(cong)28kHz到(dao)(dao)120kHz之間(jian),在使用(yong)(yong)水(shui)(shui)(shui)或水(shui)(shui)(shui)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)劑時(shi)(shi)由空穴作用(yong)(yong)引(yin)起的物理(li)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)力顯然對低(di)頻(pin)(pin)有利(li),一(yi)般使用(yong)(yong)28-40kHz左右(you)。對小間(jian)隙、狹(xia)縫、深(shen)孔的零件(jian)(jian)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi),用(yong)(yong)高頻(pin)(pin)(一(yi)般40kHz以(yi)(yi)上(shang))較好,甚至幾(ji)百kHz。對鐘表零件(jian)(jian)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)時(shi)(shi),用(yong)(yong)400kHz。若(ruo)用(yong)(yong)寬帶調頻(pin)(pin)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi),效(xiao)果(guo)更良好。 三(san)、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)籃的使用(yong)(yong) 在清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)小零件(jian)(jian)物品時(shi)(shi),常使用(yong)(yong)網(wang)籃,由于(yu)網(wang)眼(yan)要(yao)(yao)引(yin)起超(chao)聲衰減,要(yao)(yao)特別引(yin)起注(zhu)意。當頻(pin)(pin)率(lv)為28khz時(shi)(shi)使用(yong)(yong)10mm以(yi)(yi)上(shang)的網(wang)眼(yan)為好。 四、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液溫(wen)度(du)(du)的選擇(ze) 水(shui)(shui)(shui)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液最適宜(yi)的清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)溫(wen)度(du)(du)為40-60℃,尤其在天冷(leng)時(shi)(shi)若(ruo)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)液溫(wen)度(du)(du)低(di)空化(hua)效(xiao)應(ying)差(cha),清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)效(xiao)果(guo)也差(cha)。因此有部(bu)分清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)機在清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)缸(gang)(gang)外邊繞(rao)上(shang)加熱電熱絲進(jin)行溫(wen)度(du)(du)控制,當溫(wen)度(du)(du)升高后(hou)空化(hua)易發生,所(suo)以(yi)(yi)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)...
發布時間:
2020
-
06
-
18
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