一(yi)(yi)、功(gong)率(lv)(lv)(lv)的(de)選(xuan)擇(ze) 超(chao)聲(sheng)波清洗(xi)(xi)(xi)效果(guo)不一(yi)(yi)定與(功(gong)率(lv)(lv)(lv)×清洗(xi)(xi)(xi)時(shi)(shi)間(jian)(jian)(jian))成正比,有(you)時(shi)(shi)用(yong)(yong)(yong)小功(gong)率(lv)(lv)(lv),花費很(hen)(hen)長時(shi)(shi)間(jian)(jian)(jian)也沒有(you)清除污垢。而如果(guo)功(gong)率(lv)(lv)(lv)達到(dao)(dao)(dao)一(yi)(yi)定數值,有(you)時(shi)(shi)很(hen)(hen)快便(bian)將污垢去(qu)除。若選(xuan)擇(ze)功(gong)率(lv)(lv)(lv)太大(da),空(kong)化(hua)強度(du)(du)(du)將大(da)大(da)增加,清洗(xi)(xi)(xi)效果(guo)是(shi)提高了,但這時(shi)(shi)使(shi)較(jiao)精(jing)密的(de)零(ling)件也產生(sheng)(sheng)蝕(shi)點,得(de)不償失,而且清洗(xi)(xi)(xi)缸(gang)底部(bu)振動板(ban)處空(kong)化(hua)嚴重,水(shui)點腐(fu)蝕(shi)也增大(da),在(zai)采(cai)用(yong)(yong)(yong)三(san)氯(lv)乙(yi)烯等(deng)有(you)機溶劑時(shi)(shi),基本上(shang)沒有(you)問題,但采(cai)用(yong)(yong)(yong)水(shui)或(huo)水(shui)溶性(xing)清洗(xi)(xi)(xi)液時(shi)(shi),易(yi)于受到(dao)(dao)(dao)水(shui)點腐(fu)蝕(shi),如果(guo)振動板(ban)表(biao)面(mian)已受到(dao)(dao)(dao)傷痕,強功(gong)率(lv)(lv)(lv)下水(shui)底產生(sheng)(sheng)空(kong)化(hua)腐(fu)蝕(shi)更(geng)(geng)嚴重,因(yin)此(ci)要(yao)按(an)實(shi)際使(shi)用(yong)(yong)(yong)情(qing)況(kuang)選(xuan)擇(ze)超(chao)聲(sheng)功(gong)率(lv)(lv)(lv)。 二、頻(pin)率(lv)(lv)(lv)的(de)選(xuan)擇(ze) 超(chao)聲(sheng)清洗(xi)(xi)(xi)頻(pin)率(lv)(lv)(lv)從28kHz到(dao)(dao)(dao)120kHz之間(jian)(jian)(jian),在(zai)使(shi)用(yong)(yong)(yong)水(shui)或(huo)水(shui)清洗(xi)(xi)(xi)劑時(shi)(shi)由空(kong)穴作用(yong)(yong)(yong)引起(qi)的(de)物(wu)理清洗(xi)(xi)(xi)力顯(xian)然對低頻(pin)有(you)利,一(yi)(yi)般(ban)使(shi)用(yong)(yong)(yong)28-40kHz左(zuo)右。對小間(jian)(jian)(jian)隙、狹縫、深孔的(de)零(ling)件清洗(xi)(xi)(xi),用(yong)(yong)(yong)高頻(pin)(一(yi)(yi)般(ban)40kHz以上(shang))較(jiao)好(hao),甚(shen)至幾百kHz。對鐘表(biao)零(ling)件清洗(xi)(xi)(xi)時(shi)(shi),用(yong)(yong)(yong)400kHz。若用(yong)(yong)(yong)寬帶(dai)調頻(pin)清洗(xi)(xi)(xi),效果(guo)更(geng)(geng)良(liang)好(hao)。 三(san)、清洗(xi)(xi)(xi)籃(lan)的(de)使(shi)用(yong)(yong)(yong) 在(zai)清洗(xi)(xi)(xi)小零(ling)件物(wu)品時(shi)(shi),常使(shi)用(yong)(yong)(yong)網(wang)(wang)籃(lan),由于網(wang)(wang)眼要(yao)引起(qi)超(chao)聲(sheng)衰減,要(yao)特別引起(qi)注意。當(dang)頻(pin)率(lv)(lv)(lv)為28khz時(shi)(shi)使(shi)用(yong)(yong)(yong)10mm以上(shang)的(de)網(wang)(wang)眼為好(hao)。 四、清洗(xi)(xi)(xi)液溫度(du)(du)(du)的(de)選(xuan)擇(ze) 水(shui)清洗(xi)(xi)(xi)液最適(shi)宜(yi)的(de)清洗(xi)(xi)(xi)溫度(du)(du)(du)為40-60℃,尤其(qi)在(zai)天冷時(shi)(shi)若清洗(xi)(xi)(xi)液溫度(du)(du)(du)低空(kong)化(hua)效應(ying)差(cha),清洗(xi)(xi)(xi)效果(guo)也差(cha)。因(yin)此(ci)有(you)部(bu)分清洗(xi)(xi)(xi)機在(zai)清洗(xi)(xi)(xi)缸(gang)外(wai)邊繞上(shang)加熱(re)電熱(re)絲(si)進行溫度(du)(du)(du)控制,當(dang)溫度(du)(du)(du)升(sheng)高后(hou)空(kong)化(hua)易(yi)發(fa)生(sheng)(sheng),所(suo)以清洗(xi)(xi)(xi)...
發布(bu)時間:
2020
-
06
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18
瀏覽次數:139