超聲(sheng)波(bo)(bo)(bo)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)原理(li)(li)就是在清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液(ye)中產(chan)生(sheng)(sheng)“空(kong)(kong)(kong)化(hua)(hua)(hua)效應(ying)”,即清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液(ye)產(chan)生(sheng)(sheng)拉伸(shen)(shen)和壓(ya)縮(suo)(suo)現象,清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液(ye)拉伸(shen)(shen)時(shi)會產(chan)生(sheng)(sheng)大(da)量微小氣(qi)(qi)(qi)泡(pao),清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)液(ye)壓(ya)縮(suo)(suo)時(shi)氣(qi)(qi)(qi)泡(pao)會被壓(ya)碎破(po)裂(lie)。這些(xie)氣(qi)(qi)(qi)泡(pao)產(chan)生(sheng)(sheng)和破(po)裂(lie)的(de)局部壓(ya)強(qiang)可達到上(shang)千個(ge)大(da)氣(qi)(qi)(qi)壓(ya)的(de)沖擊力(li)(li),這種極強(qiang)大(da)的(de)壓(ya)力(li)(li)足以(yi)(yi)使得物質分(fen)子發生(sheng)(sheng)變化(hua)(hua)(hua),引起各種化(hua)(hua)(hua)學和物理(li)(li)變化(hua)(hua)(hua)(分(fen)解(jie)、化(hua)(hua)(hua)合(he)、乳化(hua)(hua)(hua)、分(fen)散等),可以(yi)(yi)用于(yu)清(qing)(qing)除剝(bo)離物件(jian)(jian)表面(mian)的(de)灰塵、油(you)污、銹跡等雜質。 空(kong)(kong)(kong)化(hua)(hua)(hua)效應(ying)是決定清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)效果(guo)的(de)最主要(yao)因素,而超聲(sheng)波(bo)(bo)(bo)頻(pin)(pin)(pin)率則直接影響(xiang)著空(kong)(kong)(kong)化(hua)(hua)(hua)效果(guo),一般產(chan)生(sheng)(sheng)空(kong)(kong)(kong)化(hua)(hua)(hua)效應(ying)的(de)超聲(sheng)波(bo)(bo)(bo)頻(pin)(pin)(pin)率以(yi)(yi)20KHz-80KHz最為適(shi)合(he)。 頻(pin)(pin)(pin)率與液(ye)體(ti)中氣(qi)(qi)(qi)泡(pao)的(de)直徑成(cheng)反比(bi)(bi),與滲透(tou)(tou)性(xing)成(cheng)正比(bi)(bi)。頻(pin)(pin)(pin)率越(yue)(yue)高(gao),波(bo)(bo)(bo)長(chang)較短(duan),空(kong)(kong)(kong)泡(pao)直徑小,爆炸壓(ya)力(li)(li)低,滲透(tou)(tou)性(xing)好,適(shi)合(he)于(yu)表面(mian)光滑度高(gao)、精細工件(jian)(jian)的(de)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)。另(ling)外,頻(pin)(pin)(pin)率也不(bu)能(neng)過高(gao),否則波(bo)(bo)(bo)長(chang)減短(duan),空(kong)(kong)(kong)化(hua)(hua)(hua)作用反而會減弱,從(cong)而降低清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)效率。 反之(zhi),超聲(sheng)波(bo)(bo)(bo)頻(pin)(pin)(pin)率越(yue)(yue)低,在液(ye)體(ti)中產(chan)生(sheng)(sheng)空(kong)(kong)(kong)化(hua)(hua)(hua)越(yue)(yue)容易,產(chan)生(sheng)(sheng)的(de)力(li)(li)度大(da),作用也越(yue)(yue)強(qiang),適(shi)用于(yu)表面(mian)粗糙且(qie)較難(nan)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)的(de)污垢。超聲(sheng)波(bo)(bo)(bo)頻(pin)(pin)(pin)率還影響(xiang)著工作時(shi)所產(chan)生(sheng)(sheng)的(de)高(gao)頻(pin)(pin)(pin)噪(zao)聲(sheng),頻(pin)(pin)(pin)率越(yue)(yue)低,噪(zao)聲(sheng)越(yue)(yue)大(da),一般在滿足清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)效果(guo)的(de)前提(ti)下(xia),盡(jin)量選擇(ze)較高(gao)的(de)頻(pin)(pin)(pin)率。基于(yu)以(yi)(yi)上(shang)原理(li)(li):1、低頻(pin)(pin)(pin)17K-23K:適(shi)用于(yu)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)污垢較重或(huo)者(zhe)比(bi)(bi)較難(nan)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)的(de)工件(jian)(jian),且(qie)氣(qi)(qi)(qi)泡(pao)爆破(po)沖擊力(li)(li)對工件(jian)(jian)表面(mian)不(bu)會造成(cheng)傷害(hai)時(shi),應(ying)選擇(ze)低頻(pin)(pin)(pin)超聲(sheng)波(bo)(bo)(bo)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi),例如:汽配、紡織等。2、中頻(pin)(pin)(pin)25K-28K:適(shi)用于(yu)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)污垢稍重或(huo)者(zhe)清(qing)(qing)洗(xi)(xi)(xi)(xi)(xi)難(nan)易適(shi)中,且(qie)氣(qi)(qi)(qi)泡(pao)爆破(po)沖擊力(li)(li)對工件(jian)(jian)表面(mian)不(bu)會造成(cheng)傷害(hai)時(shi),應(ying)選擇(ze)中...
發(fa)布時(shi)間(jian):
2020
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09
-
01
瀏(liu)覽(lan)次數:119