一(yi)(yi)、功(gong)率(lv)的(de)(de)(de)(de)選擇(ze) 超聲波清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)效(xiao)果不一(yi)(yi)定與(功(gong)率(lv)×清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)時(shi)(shi)(shi)(shi)間)成正比,有(you)(you)(you)(you)時(shi)(shi)(shi)(shi)用(yong)(yong)(yong)(yong)小(xiao)功(gong)率(lv),花費很(hen)長時(shi)(shi)(shi)(shi)間也(ye)沒(mei)有(you)(you)(you)(you)清(qing)(qing)(qing)(qing)(qing)除污(wu)垢。而如果功(gong)率(lv)達到(dao)一(yi)(yi)定數值,有(you)(you)(you)(you)時(shi)(shi)(shi)(shi)很(hen)快(kuai)便將污(wu)垢去除。若選擇(ze)功(gong)率(lv)太大,空(kong)(kong)(kong)(kong)化(hua)(hua)強度(du)將大大增加,清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)效(xiao)果是(shi)提高(gao)了,但(dan)這時(shi)(shi)(shi)(shi)使(shi)(shi)較精密的(de)(de)(de)(de)零(ling)件(jian)(jian)也(ye)產生(sheng)(sheng)蝕(shi)點(dian),得不償失,而且清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)缸(gang)底(di)部振動板處空(kong)(kong)(kong)(kong)化(hua)(hua)嚴重,水點(dian)腐蝕(shi)也(ye)增大,在采用(yong)(yong)(yong)(yong)三(san)氯乙烯等有(you)(you)(you)(you)機溶劑時(shi)(shi)(shi)(shi),基本(ben)上(shang)沒(mei)有(you)(you)(you)(you)問題(ti),但(dan)采用(yong)(yong)(yong)(yong)水或水溶性清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液(ye)(ye)時(shi)(shi)(shi)(shi),易于受到(dao)水點(dian)腐蝕(shi),如果振動板表(biao)面已受到(dao)傷痕,強功(gong)率(lv)下水底(di)產生(sheng)(sheng)空(kong)(kong)(kong)(kong)化(hua)(hua)腐蝕(shi)更(geng)嚴重,因此(ci)要按實際(ji)使(shi)(shi)用(yong)(yong)(yong)(yong)情(qing)況選擇(ze)超聲功(gong)率(lv)。 二、頻率(lv)的(de)(de)(de)(de)選擇(ze) 超聲清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)頻率(lv)從(cong)28kHz到(dao)120kHz之間,在使(shi)(shi)用(yong)(yong)(yong)(yong)水或水清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)劑時(shi)(shi)(shi)(shi)由空(kong)(kong)(kong)(kong)穴作用(yong)(yong)(yong)(yong)引起的(de)(de)(de)(de)物理清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)力顯然對低(di)頻有(you)(you)(you)(you)利,一(yi)(yi)般(ban)使(shi)(shi)用(yong)(yong)(yong)(yong)28-40kHz左右。對小(xiao)間隙、狹(xia)縫、深孔的(de)(de)(de)(de)零(ling)件(jian)(jian)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi),用(yong)(yong)(yong)(yong)高(gao)頻(一(yi)(yi)般(ban)40kHz以上(shang))較好(hao)(hao),甚至幾百kHz。對鐘表(biao)零(ling)件(jian)(jian)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)時(shi)(shi)(shi)(shi),用(yong)(yong)(yong)(yong)400kHz。若用(yong)(yong)(yong)(yong)寬帶調頻清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi),效(xiao)果更(geng)良好(hao)(hao)。 三(san)、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)籃的(de)(de)(de)(de)使(shi)(shi)用(yong)(yong)(yong)(yong) 在清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)小(xiao)零(ling)件(jian)(jian)物品時(shi)(shi)(shi)(shi),常使(shi)(shi)用(yong)(yong)(yong)(yong)網(wang)籃,由于網(wang)眼要引起超聲衰減(jian),要特(te)別(bie)引起注意。當頻率(lv)為28khz時(shi)(shi)(shi)(shi)使(shi)(shi)用(yong)(yong)(yong)(yong)10mm以上(shang)的(de)(de)(de)(de)網(wang)眼為好(hao)(hao)。 四、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液(ye)(ye)溫(wen)(wen)度(du)的(de)(de)(de)(de)選擇(ze) 水清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液(ye)(ye)最適宜的(de)(de)(de)(de)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)溫(wen)(wen)度(du)為40-60℃,尤(you)其在天冷時(shi)(shi)(shi)(shi)若清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液(ye)(ye)溫(wen)(wen)度(du)低(di)空(kong)(kong)(kong)(kong)化(hua)(hua)效(xiao)應差,清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)效(xiao)果也(ye)差。因此(ci)有(you)(you)(you)(you)部分清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)機在清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)缸(gang)外邊(bian)繞(rao)上(shang)加熱電熱絲進行溫(wen)(wen)度(du)控制(zhi),當溫(wen)(wen)度(du)升高(gao)后空(kong)(kong)(kong)(kong)化(hua)(hua)易發(fa)生(sheng)(sheng),所(suo)以清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)...
發布時(shi)間:
2020
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06
-
18
瀏(liu)覽次數:139