一(yi)、功率(lv)(lv)(lv)(lv)的(de)(de)選(xuan)擇 超(chao)(chao)聲波清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)效(xiao)(xiao)(xiao)果(guo)(guo)不一(yi)定與(功率(lv)(lv)(lv)(lv)×清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)時(shi)(shi)(shi)(shi)間)成正比,有時(shi)(shi)(shi)(shi)用(yong)(yong)小功率(lv)(lv)(lv)(lv),花費很長時(shi)(shi)(shi)(shi)間也沒(mei)有清(qing)(qing)(qing)(qing)(qing)除(chu)污垢。而如(ru)果(guo)(guo)功率(lv)(lv)(lv)(lv)達到(dao)一(yi)定數(shu)值,有時(shi)(shi)(shi)(shi)很快便(bian)將(jiang)污垢去除(chu)。若選(xuan)擇功率(lv)(lv)(lv)(lv)太(tai)大(da)(da),空(kong)化(hua)強度(du)將(jiang)大(da)(da)大(da)(da)增加(jia),清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)效(xiao)(xiao)(xiao)果(guo)(guo)是提高了,但這(zhe)時(shi)(shi)(shi)(shi)使較精密的(de)(de)零(ling)件也產(chan)生(sheng)蝕(shi)點(dian)(dian),得不償(chang)失,而且(qie)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)缸(gang)底(di)部振動(dong)(dong)板處空(kong)化(hua)嚴重,水(shui)(shui)(shui)點(dian)(dian)腐蝕(shi)也增大(da)(da),在采用(yong)(yong)三(san)氯乙烯等(deng)有機溶劑(ji)時(shi)(shi)(shi)(shi),基本上(shang)沒(mei)有問題,但采用(yong)(yong)水(shui)(shui)(shui)或水(shui)(shui)(shui)溶性(xing)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液(ye)時(shi)(shi)(shi)(shi),易(yi)于受(shou)到(dao)水(shui)(shui)(shui)點(dian)(dian)腐蝕(shi),如(ru)果(guo)(guo)振動(dong)(dong)板表面(mian)已受(shou)到(dao)傷痕(hen),強功率(lv)(lv)(lv)(lv)下水(shui)(shui)(shui)底(di)產(chan)生(sheng)空(kong)化(hua)腐蝕(shi)更嚴重,因此(ci)要按實際使用(yong)(yong)情況選(xuan)擇超(chao)(chao)聲功率(lv)(lv)(lv)(lv)。 二、頻(pin)率(lv)(lv)(lv)(lv)的(de)(de)選(xuan)擇 超(chao)(chao)聲清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)頻(pin)率(lv)(lv)(lv)(lv)從(cong)28kHz到(dao)120kHz之間,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)劑(ji)時(shi)(shi)(shi)(shi)由(you)空(kong)穴作用(yong)(yong)引(yin)起(qi)的(de)(de)物理清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)力顯(xian)然對低頻(pin)有利,一(yi)般使用(yong)(yong)28-40kHz左右。對小間隙、狹縫、深孔的(de)(de)零(ling)件清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi),用(yong)(yong)高頻(pin)(一(yi)般40kHz以上(shang))較好,甚(shen)至(zhi)幾百(bai)kHz。對鐘表零(ling)件清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)時(shi)(shi)(shi)(shi),用(yong)(yong)400kHz。若用(yong)(yong)寬帶調頻(pin)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi),效(xiao)(xiao)(xiao)果(guo)(guo)更良好。 三(san)、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)籃(lan)的(de)(de)使用(yong)(yong) 在清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)小零(ling)件物品時(shi)(shi)(shi)(shi),常使用(yong)(yong)網籃(lan),由(you)于網眼要引(yin)起(qi)超(chao)(chao)聲衰(shuai)減,要特別引(yin)起(qi)注意。當頻(pin)率(lv)(lv)(lv)(lv)為(wei)(wei)28khz時(shi)(shi)(shi)(shi)使用(yong)(yong)10mm以上(shang)的(de)(de)網眼為(wei)(wei)好。 四(si)、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液(ye)溫(wen)度(du)的(de)(de)選(xuan)擇 水(shui)(shui)(shui)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液(ye)最適(shi)宜的(de)(de)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)溫(wen)度(du)為(wei)(wei)40-60℃,尤其在天冷時(shi)(shi)(shi)(shi)若清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)液(ye)溫(wen)度(du)低空(kong)化(hua)效(xiao)(xiao)(xiao)應(ying)差,清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)效(xiao)(xiao)(xiao)果(guo)(guo)也差。因此(ci)有部分清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)機在清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)缸(gang)外邊(bian)繞上(shang)加(jia)熱(re)電(dian)熱(re)絲進行溫(wen)度(du)控制,當溫(wen)度(du)升高后(hou)空(kong)化(hua)易(yi)發生(sheng),所以清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)...
發(fa)布時間:
2020
-
06
-
18
瀏覽(lan)次(ci)數(shu):139