噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)板(ban)是(shi)紡(fang)絲(si)(si)(si)(si)(si)(si)機的(de)(de)(de)重(zhong)要部(bu)件(jian)之一(yi),它(ta)(ta)的(de)(de)(de)作(zuo)用是(shi)將黏流態的(de)(de)(de)高(gao)(gao)聚物熔體或溶液,通過微(wei)孔(kong)(kong)(kong)轉變成(cheng)有特(te)定截面狀(zhuang)的(de)(de)(de)細流,經(jing)過凝固(gu)介質或凝固(gu)浴固(gu)化(hua)而(er)(er)形(xing)成(cheng)絲(si)(si)(si)(si)(si)(si)條。在(zai)(zai)紡(fang)絲(si)(si)(si)(si)(si)(si)過程中(zhong)噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)板(ban)會(hui)被(bei)機械(xie)雜質、碳纖(xian)、凝膠等堵(du)塞(sai)噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)孔(kong)(kong)(kong),當(dang)噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)孔(kong)(kong)(kong)部(bu)分堵(du)塞(sai)時(shi),在(zai)(zai)噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)頭/板(ban)外表面會(hui)有紡(fang)絲(si)(si)(si)(si)(si)(si)溶液漫流,從而(er)(er)造成(cheng)原(yuan)絲(si)(si)(si)(si)(si)(si)纖(xian)度(du)不(bu)勻和產生(sheng)(sheng)(sheng)絲(si)(si)(si)(si)(si)(si)細、絲(si)(si)(si)(si)(si)(si)毛等問題。而(er)(er)當(dang)噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)孔(kong)(kong)(kong)完(wan)全堵(du)塞(sai)時(shi),則(ze)會(hui)大(da)大(da)提高(gao)(gao)纖(xian)維的(de)(de)(de)斷頭率,對纖(xian)維品(pin)質有極(ji)大(da)的(de)(de)(de)影響(xiang),因(yin)此必須定期對噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)板(ban)進(jin)行清(qing)(qing)(qing)洗(xi)(xi)。 傳(chuan)統的(de)(de)(de)噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)板(ban)清(qing)(qing)(qing)洗(xi)(xi)方法如化(hua)學、物理或機械(xie)會(hui)使噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)孔(kong)(kong)(kong)磨損以(yi)致(zhi)出現侵蝕、微(wei)裂、孔(kong)(kong)(kong)徑不(bu)規則(ze)等問題,因(yin)而(er)(er)要選用清(qing)(qing)(qing)洗(xi)(xi)效(xiao)果好且(qie)(qie)不(bu)會(hui)對噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)孔(kong)(kong)(kong)造成(cheng)損傷的(de)(de)(de)清(qing)(qing)(qing)洗(xi)(xi)方式(shi),為(wei)解決噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)孔(kong)(kong)(kong)堵(du)塞(sai)及清(qing)(qing)(qing)洗(xi)(xi)工(gong)(gong)藝會(hui)對噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)孔(kong)(kong)(kong)造成(cheng)損傷的(de)(de)(de)問題,現在(zai)(zai)很多工(gong)(gong)廠(chang)采用超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)(bo)清(qing)(qing)(qing)洗(xi)(xi)機來清(qing)(qing)(qing)洗(xi)(xi)噴(pen)(pen)(pen)絲(si)(si)(si)(si)(si)(si)板(ban)。 超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)(bo)清(qing)(qing)(qing)洗(xi)(xi)是(shi)目(mu)前工(gong)(gong)業上應(ying)用廣(guang)泛且(qie)(qie)效(xiao)果好的(de)(de)(de)一(yi)種清(qing)(qing)(qing)洗(xi)(xi)方式(shi),其工(gong)(gong)作(zuo)原(yuan)理是(shi)超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)(bo)在(zai)(zai)清(qing)(qing)(qing)洗(xi)(xi)液傳(chuan)播時(shi),清(qing)(qing)(qing)洗(xi)(xi)液中(zhong)的(de)(de)(de)微(wei)小(xiao)氣(qi)泡(pao)(pao)在(zai)(zai)聲(sheng)(sheng)(sheng)場的(de)(de)(de)作(zuo)用下產生(sheng)(sheng)(sheng)振動(dong),當(dang)聲(sheng)(sheng)(sheng)壓達到一(yi)定值后,氣(qi)泡(pao)(pao)會(hui)迅速增(zeng)大(da),然(ran)后閉合瞬間爆(bao)破(po)產生(sheng)(sheng)(sheng)可達到上千個大(da)氣(qi)壓的(de)(de)(de)沖(chong)擊波(bo)(bo)(bo),沖(chong)擊波(bo)(bo)(bo)減小(xiao)了污漬與(yu)被(bei)清(qing)(qing)(qing)洗(xi)(xi)工(gong)(gong)件(jian)的(de)(de)(de)粘著力,可以(yi)破(po)壞(huai)(huai)不(bu)溶性污漬而(er)(er)使它(ta)(ta)們分散(san)在(zai)(zai)清(qing)(qing)(qing)洗(xi)(xi)液體中(zhong),從而(er)(er)達到清(qing)(qing)(qing)洗(xi)(xi)的(de)(de)(de)目(mu)的(de)(de)(de)。雖(sui)然(ran)氣(qi)泡(pao)(pao)的(de)(de)(de)破(po)裂能(neng)量(liang)很高(gao)(gao),但是(shi)因(yin)每個氣(qi)泡(pao)(pao)的(de)(de)(de)體積非(fei)常(chang)微(wei)小(xiao),對于(yu)工(gong)(gong)件(jian)來說(shuo)不(bu)會(hui)產生(sheng)(sheng)(sheng)機械(xie)破(po)壞(huai)(huai)和明顯的(de)(de)(de)溫升。 在(zai)(zai)清(qing)(qing)(qing)洗(xi)(xi)液中(zhong)由于(yu)空(kong)化(hua)效(xiao)應(ying)產生(sheng)(sheng)(sheng)的(de)(de)(de)氣(qi)泡(pao)(pao)數量(liang)眾多且(qie)(qie)無處不(bu)在(zai)(zai),因(yin)此對于(yu)工(gong)(gong)件(jian)的(de)(de)(de)清(qing)(qing)(qing)洗(xi)(xi)可以(yi)非(fei)常(chang)徹底,即使是(shi)形(xing)狀(zhuang)復雜的(de)(de)(de)工(gong)(gong)件(jian)內部(bu),只要能(neng)夠...
發(fa)布時(shi)間:
2020
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05
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19
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