一(yi)、功(gong)率(lv)的(de)(de)選(xuan)(xuan)擇(ze) 超(chao)聲波清(qing)(qing)(qing)洗(xi)(xi)(xi)效(xiao)果不(bu)一(yi)定與(功(gong)率(lv)×清(qing)(qing)(qing)洗(xi)(xi)(xi)時(shi)(shi)(shi)間)成正比,有時(shi)(shi)(shi)用小功(gong)率(lv),花費很長時(shi)(shi)(shi)間也(ye)(ye)沒(mei)有清(qing)(qing)(qing)除污(wu)垢(gou)。而如果功(gong)率(lv)達到(dao)(dao)一(yi)定數值(zhi),有時(shi)(shi)(shi)很快(kuai)便將污(wu)垢(gou)去除。若選(xuan)(xuan)擇(ze)功(gong)率(lv)太(tai)大(da),空(kong)(kong)(kong)化強度(du)將大(da)大(da)增(zeng)加,清(qing)(qing)(qing)洗(xi)(xi)(xi)效(xiao)果是提高(gao)了,但這時(shi)(shi)(shi)使(shi)較精密的(de)(de)零(ling)件也(ye)(ye)產生蝕(shi)點(dian),得不(bu)償(chang)失(shi),而且清(qing)(qing)(qing)洗(xi)(xi)(xi)缸(gang)底(di)部振動板(ban)處空(kong)(kong)(kong)化嚴重,水(shui)(shui)(shui)點(dian)腐蝕(shi)也(ye)(ye)增(zeng)大(da),在采用三(san)氯乙烯(xi)等有機(ji)溶劑時(shi)(shi)(shi),基本上(shang)沒(mei)有問題(ti),但采用水(shui)(shui)(shui)或水(shui)(shui)(shui)溶性清(qing)(qing)(qing)洗(xi)(xi)(xi)液時(shi)(shi)(shi),易于(yu)(yu)受到(dao)(dao)水(shui)(shui)(shui)點(dian)腐蝕(shi),如果振動板(ban)表面已受到(dao)(dao)傷痕,強功(gong)率(lv)下水(shui)(shui)(shui)底(di)產生空(kong)(kong)(kong)化腐蝕(shi)更嚴重,因(yin)此(ci)要按實際(ji)使(shi)用情況選(xuan)(xuan)擇(ze)超(chao)聲功(gong)率(lv)。 二(er)、頻(pin)(pin)(pin)率(lv)的(de)(de)選(xuan)(xuan)擇(ze) 超(chao)聲清(qing)(qing)(qing)洗(xi)(xi)(xi)頻(pin)(pin)(pin)率(lv)從28kHz到(dao)(dao)120kHz之間,在使(shi)用水(shui)(shui)(shui)或水(shui)(shui)(shui)清(qing)(qing)(qing)洗(xi)(xi)(xi)劑時(shi)(shi)(shi)由空(kong)(kong)(kong)穴作用引(yin)起的(de)(de)物理清(qing)(qing)(qing)洗(xi)(xi)(xi)力(li)顯(xian)然對(dui)低頻(pin)(pin)(pin)有利,一(yi)般使(shi)用28-40kHz左右。對(dui)小間隙、狹縫(feng)、深孔的(de)(de)零(ling)件清(qing)(qing)(qing)洗(xi)(xi)(xi),用高(gao)頻(pin)(pin)(pin)(一(yi)般40kHz以(yi)上(shang))較好,甚(shen)至幾百kHz。對(dui)鐘表零(ling)件清(qing)(qing)(qing)洗(xi)(xi)(xi)時(shi)(shi)(shi),用400kHz。若用寬帶調頻(pin)(pin)(pin)清(qing)(qing)(qing)洗(xi)(xi)(xi),效(xiao)果更良好。 三(san)、清(qing)(qing)(qing)洗(xi)(xi)(xi)籃(lan)的(de)(de)使(shi)用 在清(qing)(qing)(qing)洗(xi)(xi)(xi)小零(ling)件物品時(shi)(shi)(shi),常(chang)使(shi)用網籃(lan),由于(yu)(yu)網眼要引(yin)起超(chao)聲衰減,要特別引(yin)起注意。當頻(pin)(pin)(pin)率(lv)為28khz時(shi)(shi)(shi)使(shi)用10mm以(yi)上(shang)的(de)(de)網眼為好。 四、清(qing)(qing)(qing)洗(xi)(xi)(xi)液溫度(du)的(de)(de)選(xuan)(xuan)擇(ze) 水(shui)(shui)(shui)清(qing)(qing)(qing)洗(xi)(xi)(xi)液最適宜的(de)(de)清(qing)(qing)(qing)洗(xi)(xi)(xi)溫度(du)為40-60℃,尤其在天冷時(shi)(shi)(shi)若清(qing)(qing)(qing)洗(xi)(xi)(xi)液溫度(du)低空(kong)(kong)(kong)化效(xiao)應(ying)差(cha),清(qing)(qing)(qing)洗(xi)(xi)(xi)效(xiao)果也(ye)(ye)差(cha)。因(yin)此(ci)有部分(fen)清(qing)(qing)(qing)洗(xi)(xi)(xi)機(ji)在清(qing)(qing)(qing)洗(xi)(xi)(xi)缸(gang)外(wai)邊繞(rao)上(shang)加熱(re)電熱(re)絲進行溫度(du)控制,當溫度(du)升高(gao)后空(kong)(kong)(kong)化易發生,所以(yi)清(qing)(qing)(qing)洗(xi)(xi)(xi)...
發布時間:
2020
-
06
-
18
瀏覽(lan)次數:168