一、功(gong)(gong)率(lv)的(de)選擇 超(chao)聲(sheng)波清(qing)(qing)(qing)(qing)洗(xi)效(xiao)果不(bu)一定(ding)與(功(gong)(gong)率(lv)×清(qing)(qing)(qing)(qing)洗(xi)時(shi)(shi)(shi)(shi)間)成正(zheng)比,有(you)時(shi)(shi)(shi)(shi)用(yong)小(xiao)(xiao)(xiao)功(gong)(gong)率(lv),花費很(hen)長時(shi)(shi)(shi)(shi)間也(ye)(ye)沒(mei)有(you)清(qing)(qing)(qing)(qing)除(chu)污垢(gou)。而如果功(gong)(gong)率(lv)達到一定(ding)數值,有(you)時(shi)(shi)(shi)(shi)很(hen)快(kuai)便將(jiang)污垢(gou)去除(chu)。若選擇功(gong)(gong)率(lv)太大(da)(da),空(kong)(kong)化強(qiang)度(du)將(jiang)大(da)(da)大(da)(da)增加(jia),清(qing)(qing)(qing)(qing)洗(xi)效(xiao)果是提高了,但這時(shi)(shi)(shi)(shi)使(shi)較精密的(de)零(ling)(ling)件也(ye)(ye)產(chan)生蝕(shi)點,得不(bu)償失,而且清(qing)(qing)(qing)(qing)洗(xi)缸(gang)底(di)部振(zhen)動板(ban)處空(kong)(kong)化嚴重(zhong),水(shui)(shui)(shui)點腐(fu)蝕(shi)也(ye)(ye)增大(da)(da),在采用(yong)三(san)氯(lv)乙烯等有(you)機(ji)溶劑(ji)時(shi)(shi)(shi)(shi),基本(ben)上(shang)沒(mei)有(you)問題,但采用(yong)水(shui)(shui)(shui)或水(shui)(shui)(shui)溶性清(qing)(qing)(qing)(qing)洗(xi)液(ye)(ye)時(shi)(shi)(shi)(shi),易于(yu)受到水(shui)(shui)(shui)點腐(fu)蝕(shi),如果振(zhen)動板(ban)表面已受到傷痕,強(qiang)功(gong)(gong)率(lv)下水(shui)(shui)(shui)底(di)產(chan)生空(kong)(kong)化腐(fu)蝕(shi)更(geng)嚴重(zhong),因(yin)此要按實際使(shi)用(yong)情況選擇超(chao)聲(sheng)功(gong)(gong)率(lv)。 二、頻(pin)(pin)率(lv)的(de)選擇 超(chao)聲(sheng)清(qing)(qing)(qing)(qing)洗(xi)頻(pin)(pin)率(lv)從28kHz到120kHz之(zhi)間,在使(shi)用(yong)水(shui)(shui)(shui)或水(shui)(shui)(shui)清(qing)(qing)(qing)(qing)洗(xi)劑(ji)時(shi)(shi)(shi)(shi)由空(kong)(kong)穴(xue)作用(yong)引起(qi)(qi)(qi)的(de)物(wu)理(li)清(qing)(qing)(qing)(qing)洗(xi)力顯然對低(di)頻(pin)(pin)有(you)利,一般(ban)使(shi)用(yong)28-40kHz左右。對小(xiao)(xiao)(xiao)間隙、狹縫、深孔的(de)零(ling)(ling)件清(qing)(qing)(qing)(qing)洗(xi),用(yong)高頻(pin)(pin)(一般(ban)40kHz以(yi)(yi)上(shang))較好(hao)(hao),甚至(zhi)幾百(bai)kHz。對鐘表零(ling)(ling)件清(qing)(qing)(qing)(qing)洗(xi)時(shi)(shi)(shi)(shi),用(yong)400kHz。若用(yong)寬帶調頻(pin)(pin)清(qing)(qing)(qing)(qing)洗(xi),效(xiao)果更(geng)良好(hao)(hao)。 三(san)、清(qing)(qing)(qing)(qing)洗(xi)籃的(de)使(shi)用(yong) 在清(qing)(qing)(qing)(qing)洗(xi)小(xiao)(xiao)(xiao)零(ling)(ling)件物(wu)品(pin)時(shi)(shi)(shi)(shi),常(chang)使(shi)用(yong)網籃,由于(yu)網眼要引起(qi)(qi)(qi)超(chao)聲(sheng)衰減,要特別引起(qi)(qi)(qi)注(zhu)意(yi)。當(dang)頻(pin)(pin)率(lv)為(wei)28khz時(shi)(shi)(shi)(shi)使(shi)用(yong)10mm以(yi)(yi)上(shang)的(de)網眼為(wei)好(hao)(hao)。 四、清(qing)(qing)(qing)(qing)洗(xi)液(ye)(ye)溫(wen)度(du)的(de)選擇 水(shui)(shui)(shui)清(qing)(qing)(qing)(qing)洗(xi)液(ye)(ye)最適宜的(de)清(qing)(qing)(qing)(qing)洗(xi)溫(wen)度(du)為(wei)40-60℃,尤其(qi)在天冷時(shi)(shi)(shi)(shi)若清(qing)(qing)(qing)(qing)洗(xi)液(ye)(ye)溫(wen)度(du)低(di)空(kong)(kong)化效(xiao)應差,清(qing)(qing)(qing)(qing)洗(xi)效(xiao)果也(ye)(ye)差。因(yin)此有(you)部分清(qing)(qing)(qing)(qing)洗(xi)機(ji)在清(qing)(qing)(qing)(qing)洗(xi)缸(gang)外(wai)邊繞上(shang)加(jia)熱電熱絲進行溫(wen)度(du)控(kong)制(zhi),當(dang)溫(wen)度(du)升高后空(kong)(kong)化易發生,所以(yi)(yi)清(qing)(qing)(qing)(qing)洗(xi)...
發布時間(jian):
2020
-
06
-
18
瀏覽次數(shu):139