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一(yi)、功(gong)率的(de)(de)(de)(de)(de)選(xuan)擇(ze) 超聲(sheng)波清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)效(xiao)果(guo)(guo)不一(yi)定與(功(gong)率×清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)時(shi)(shi)(shi)(shi)(shi)間(jian))成正比,有(you)(you)(you)(you)時(shi)(shi)(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong)小(xiao)功(gong)率,花(hua)費很長時(shi)(shi)(shi)(shi)(shi)間(jian)也沒有(you)(you)(you)(you)清(qing)(qing)(qing)(qing)(qing)除(chu)污(wu)垢。而如果(guo)(guo)功(gong)率達到一(yi)定數值(zhi),有(you)(you)(you)(you)時(shi)(shi)(shi)(shi)(shi)很快便將污(wu)垢去除(chu)。若選(xuan)擇(ze)功(gong)率太大,空(kong)化強度將大大增加,清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)效(xiao)果(guo)(guo)是提(ti)高了,但這(zhe)時(shi)(shi)(shi)(shi)(shi)使(shi)(shi)(shi)較(jiao)精密的(de)(de)(de)(de)(de)零件(jian)也產生蝕(shi)點,得不償失,而且清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)缸底(di)(di)部振動板處空(kong)化嚴重,水(shui)(shui)(shui)點腐蝕(shi)也增大,在(zai)采用(yong)(yong)(yong)(yong)(yong)三氯乙(yi)烯等有(you)(you)(you)(you)機溶劑(ji)時(shi)(shi)(shi)(shi)(shi),基(ji)本上(shang)(shang)沒有(you)(you)(you)(you)問題,但采用(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)或(huo)水(shui)(shui)(shui)溶性清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)液時(shi)(shi)(shi)(shi)(shi),易于(yu)受到水(shui)(shui)(shui)點腐蝕(shi),如果(guo)(guo)振動板表面已受到傷痕(hen),強功(gong)率下水(shui)(shui)(shui)底(di)(di)產生空(kong)化腐蝕(shi)更(geng)嚴重,因此要(yao)(yao)按實際使(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong)情況選(xuan)擇(ze)超聲(sheng)功(gong)率。 二(er)、頻(pin)率的(de)(de)(de)(de)(de)選(xuan)擇(ze) 超聲(sheng)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)頻(pin)率從28kHz到120kHz之間(jian),在(zai)使(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong)水(shui)(shui)(shui)或(huo)水(shui)(shui)(shui)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)劑(ji)時(shi)(shi)(shi)(shi)(shi)由(you)(you)空(kong)穴作用(yong)(yong)(yong)(yong)(yong)引起(qi)的(de)(de)(de)(de)(de)物理(li)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)力顯(xian)然對(dui)低頻(pin)有(you)(you)(you)(you)利(li),一(yi)般使(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong)28-40kHz左右。對(dui)小(xiao)間(jian)隙、狹縫(feng)、深孔的(de)(de)(de)(de)(de)零件(jian)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi),用(yong)(yong)(yong)(yong)(yong)高頻(pin)(一(yi)般40kHz以上(shang)(shang))較(jiao)好(hao),甚至(zhi)幾百kHz。對(dui)鐘表零件(jian)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)時(shi)(shi)(shi)(shi)(shi),用(yong)(yong)(yong)(yong)(yong)400kHz。若用(yong)(yong)(yong)(yong)(yong)寬帶(dai)調頻(pin)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi),效(xiao)果(guo)(guo)更(geng)良(liang)好(hao)。 三、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)籃(lan)的(de)(de)(de)(de)(de)使(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong) 在(zai)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)小(xiao)零件(jian)物品(pin)時(shi)(shi)(shi)(shi)(shi),常使(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong)網籃(lan),由(you)(you)于(yu)網眼要(yao)(yao)引起(qi)超聲(sheng)衰(shuai)減,要(yao)(yao)特別引起(qi)注意。當頻(pin)率為(wei)28khz時(shi)(shi)(shi)(shi)(shi)使(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong)10mm以上(shang)(shang)的(de)(de)(de)(de)(de)網眼為(wei)好(hao)。 四、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)液溫度的(de)(de)(de)(de)(de)選(xuan)擇(ze) 水(shui)(shui)(shui)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)液最適宜的(de)(de)(de)(de)(de)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)溫度為(wei)40-60℃,尤(you)其(qi)在(zai)天冷(leng)時(shi)(shi)(shi)(shi)(shi)若清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)液溫度低空(kong)化效(xiao)應差,清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)效(xiao)果(guo)(guo)也差。因此有(you)(you)(you)(you)部分清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)機在(zai)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)缸外(wai)邊繞上(shang)(shang)加熱(re)電(dian)熱(re)絲(si)進(jin)行溫度控(kong)制,當溫度升高后(hou)空(kong)化易發生,所以清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)(xi)...
發布時間(jian):
2020
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06
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18
瀏(liu)覽次數：139