一(yi)、功(gong)(gong)率(lv)(lv)(lv)的選擇(ze) 超(chao)(chao)聲(sheng)波(bo)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)效果(guo)不(bu)(bu)一(yi)定(ding)與(yu)(功(gong)(gong)率(lv)(lv)(lv)×清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)時(shi)(shi)間(jian)(jian))成正比,有時(shi)(shi)用(yong)(yong)(yong)小(xiao)功(gong)(gong)率(lv)(lv)(lv),花費很長時(shi)(shi)間(jian)(jian)也(ye)沒有清(qing)(qing)(qing)(qing)(qing)除污垢。而如果(guo)功(gong)(gong)率(lv)(lv)(lv)達到一(yi)定(ding)數值,有時(shi)(shi)很快便將污垢去除。若選擇(ze)功(gong)(gong)率(lv)(lv)(lv)太大(da)(da),空(kong)化(hua)(hua)強度(du)(du)(du)將大(da)(da)大(da)(da)增加(jia),清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)效果(guo)是提高了,但(dan)這時(shi)(shi)使(shi)(shi)(shi)較(jiao)精(jing)密的零件也(ye)產(chan)生(sheng)蝕(shi)點,得不(bu)(bu)償失,而且清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)缸(gang)底部振動板處(chu)空(kong)化(hua)(hua)嚴(yan)重,水(shui)(shui)(shui)點腐蝕(shi)也(ye)增大(da)(da),在(zai)(zai)采(cai)用(yong)(yong)(yong)三氯乙烯等有機(ji)溶劑(ji)時(shi)(shi),基本上(shang)沒有問題,但(dan)采(cai)用(yong)(yong)(yong)水(shui)(shui)(shui)或水(shui)(shui)(shui)溶性(xing)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)液時(shi)(shi),易于受到水(shui)(shui)(shui)點腐蝕(shi),如果(guo)振動板表面已受到傷(shang)痕(hen),強功(gong)(gong)率(lv)(lv)(lv)下水(shui)(shui)(shui)底產(chan)生(sheng)空(kong)化(hua)(hua)腐蝕(shi)更(geng)嚴(yan)重,因此要(yao)(yao)按(an)實際使(shi)(shi)(shi)用(yong)(yong)(yong)情況選擇(ze)超(chao)(chao)聲(sheng)功(gong)(gong)率(lv)(lv)(lv)。 二、頻(pin)率(lv)(lv)(lv)的選擇(ze) 超(chao)(chao)聲(sheng)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)頻(pin)率(lv)(lv)(lv)從28kHz到120kHz之間(jian)(jian),在(zai)(zai)使(shi)(shi)(shi)用(yong)(yong)(yong)水(shui)(shui)(shui)或水(shui)(shui)(shui)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)劑(ji)時(shi)(shi)由(you)空(kong)穴作用(yong)(yong)(yong)引起的物理清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)力(li)顯然對(dui)低頻(pin)有利(li),一(yi)般(ban)使(shi)(shi)(shi)用(yong)(yong)(yong)28-40kHz左(zuo)右(you)。對(dui)小(xiao)間(jian)(jian)隙、狹縫、深孔的零件清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi),用(yong)(yong)(yong)高頻(pin)(一(yi)般(ban)40kHz以上(shang))較(jiao)好(hao),甚至幾(ji)百kHz。對(dui)鐘(zhong)表零件清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)時(shi)(shi),用(yong)(yong)(yong)400kHz。若用(yong)(yong)(yong)寬帶調頻(pin)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi),效果(guo)更(geng)良好(hao)。 三、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)籃的使(shi)(shi)(shi)用(yong)(yong)(yong) 在(zai)(zai)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)小(xiao)零件物品(pin)時(shi)(shi),常使(shi)(shi)(shi)用(yong)(yong)(yong)網籃,由(you)于網眼要(yao)(yao)引起超(chao)(chao)聲(sheng)衰減,要(yao)(yao)特(te)別引起注意。當(dang)頻(pin)率(lv)(lv)(lv)為28khz時(shi)(shi)使(shi)(shi)(shi)用(yong)(yong)(yong)10mm以上(shang)的網眼為好(hao)。 四、清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)液溫度(du)(du)(du)的選擇(ze) 水(shui)(shui)(shui)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)液最適宜的清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)溫度(du)(du)(du)為40-60℃,尤其在(zai)(zai)天(tian)冷時(shi)(shi)若清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)液溫度(du)(du)(du)低空(kong)化(hua)(hua)效應差,清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)效果(guo)也(ye)差。因此有部分清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)機(ji)在(zai)(zai)清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)缸(gang)外(wai)邊繞上(shang)加(jia)熱(re)(re)電熱(re)(re)絲進(jin)行溫度(du)(du)(du)控(kong)制,當(dang)溫度(du)(du)(du)升(sheng)高后空(kong)化(hua)(hua)易發生(sheng),所以清(qing)(qing)(qing)(qing)(qing)洗(xi)(xi)...
發布時間:
2020
-
06
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18
瀏覽次數:139