一(yi)(yi)、功率(lv)的(de)選擇(ze)(ze) 超聲(sheng)波清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)效果(guo)(guo)(guo)不(bu)一(yi)(yi)定與(功率(lv)×清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)時(shi)間(jian))成正比,有(you)(you)(you)時(shi)用(yong)(yong)小功率(lv),花費(fei)很長時(shi)間(jian)也沒有(you)(you)(you)清(qing)(qing)(qing)(qing)(qing)(qing)除污垢(gou)。而如果(guo)(guo)(guo)功率(lv)達到(dao)一(yi)(yi)定數值,有(you)(you)(you)時(shi)很快便將(jiang)污垢(gou)去除。若(ruo)選擇(ze)(ze)功率(lv)太大(da),空(kong)化強(qiang)度(du)(du)將(jiang)大(da)大(da)增加,清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)效果(guo)(guo)(guo)是提(ti)高了,但這時(shi)使(shi)(shi)較精密的(de)零(ling)件(jian)也產(chan)(chan)生(sheng)蝕(shi)點(dian),得(de)不(bu)償(chang)失,而且清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)缸(gang)底(di)部振動板(ban)處空(kong)化嚴(yan)(yan)重,水(shui)(shui)點(dian)腐(fu)蝕(shi)也增大(da),在(zai)(zai)采用(yong)(yong)三氯乙烯(xi)等有(you)(you)(you)機溶(rong)劑時(shi),基本上沒有(you)(you)(you)問題(ti),但采用(yong)(yong)水(shui)(shui)或(huo)水(shui)(shui)溶(rong)性清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)液時(shi),易于受(shou)到(dao)水(shui)(shui)點(dian)腐(fu)蝕(shi),如果(guo)(guo)(guo)振動板(ban)表面已受(shou)到(dao)傷痕,強(qiang)功率(lv)下(xia)水(shui)(shui)底(di)產(chan)(chan)生(sheng)空(kong)化腐(fu)蝕(shi)更嚴(yan)(yan)重,因此要(yao)按實(shi)際使(shi)(shi)用(yong)(yong)情(qing)況(kuang)選擇(ze)(ze)超聲(sheng)功率(lv)。 二、頻(pin)率(lv)的(de)選擇(ze)(ze) 超聲(sheng)清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)頻(pin)率(lv)從28kHz到(dao)120kHz之(zhi)間(jian),在(zai)(zai)使(shi)(shi)用(yong)(yong)水(shui)(shui)或(huo)水(shui)(shui)清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)劑時(shi)由空(kong)穴作用(yong)(yong)引(yin)起(qi)的(de)物(wu)理清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)力顯(xian)然對(dui)低(di)頻(pin)有(you)(you)(you)利,一(yi)(yi)般使(shi)(shi)用(yong)(yong)28-40kHz左右。對(dui)小間(jian)隙、狹縫、深孔的(de)零(ling)件(jian)清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi),用(yong)(yong)高頻(pin)(一(yi)(yi)般40kHz以(yi)上)較好(hao),甚至幾(ji)百kHz。對(dui)鐘表零(ling)件(jian)清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)時(shi),用(yong)(yong)400kHz。若(ruo)用(yong)(yong)寬帶調頻(pin)清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi),效果(guo)(guo)(guo)更良好(hao)。 三、清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)籃的(de)使(shi)(shi)用(yong)(yong) 在(zai)(zai)清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)小零(ling)件(jian)物(wu)品時(shi),常使(shi)(shi)用(yong)(yong)網籃,由于網眼要(yao)引(yin)起(qi)超聲(sheng)衰減,要(yao)特(te)別引(yin)起(qi)注意。當頻(pin)率(lv)為28khz時(shi)使(shi)(shi)用(yong)(yong)10mm以(yi)上的(de)網眼為好(hao)。 四、清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)液溫(wen)(wen)度(du)(du)的(de)選擇(ze)(ze) 水(shui)(shui)清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)液最適宜(yi)的(de)清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)溫(wen)(wen)度(du)(du)為40-60℃,尤其在(zai)(zai)天(tian)冷時(shi)若(ruo)清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)液溫(wen)(wen)度(du)(du)低(di)空(kong)化效應差,清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)效果(guo)(guo)(guo)也差。因此有(you)(you)(you)部分清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)機在(zai)(zai)清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)缸(gang)外邊繞上加熱電熱絲進行溫(wen)(wen)度(du)(du)控制(zhi),當溫(wen)(wen)度(du)(du)升(sheng)高后(hou)空(kong)化易發生(sheng),所以(yi)清(qing)(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)...
發布時間:
2020
-
06
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18
瀏覽次數:168