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分析中空玻璃強度、剛度、密封性

文(wen)章出處:人氣:-發表時間:2014-08-06 18:54【

  中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)在(zai)運(yun)(yun)(yun)用(yong)(yong)(yong)(yong)的(de)(de)整(zheng)個(ge)壽命周期中(zhong)(zhong)(zhong)要(yao)不斷遭到(dao)外(wai)界環境腐蝕(shi)及(ji)外(wai)力效果(guo),在(zai)運(yun)(yun)(yun)用(yong)(yong)(yong)(yong)一(yi)(yi)段時間后有(you)些中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)會(hui)呈現各(ge)種(zhong)質量(liang)問題,其間主要(yao)有(you)兩種(zhong):一(yi)(yi)是中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)密(mi)封功(gong)用(yong)(yong)(yong)(yong)失(shi)(shi)效(氣體走漏(lou)),使中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)發生露點(dian)(dian),并失(shi)(shi)掉保(bao)(bao)溫隔熱功(gong)用(yong)(yong)(yong)(yong);二是中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)迸裂及(ji)外(wai)片全體掉落,簡單形(xing)成(cheng)嚴峻的(de)(de)安(an)全隱患(huan)。特(te)別是中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)密(mi)封功(gong)用(yong)(yong)(yong)(yong)失(shi)(shi)效會(hui)致(zhi)使其承(cheng)載(zai)才能降(jiang)低(di),在(zai)外(wai)力效果(guo)下,其外(wai)片更簡單發生全體掉落。因而(er),研(yan)討中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)承(cheng)載(zai)功(gong)用(yong)(yong)(yong)(yong)的(de)(de)基(ji)本(ben)理論,知(zhi)道(dao)中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)在(zai)外(wai)載(zai)效果(guo)下的(de)(de)強度特(te)征及(ji)變形(xing)特(te)征,合理規劃中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)構造尺度,并提(ti)出一(yi)(yi)套(tao)中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)中(zhong)(zhong)(zhong)空(kong)(kong)層(ceng)(ceng)密(mi)封功(gong)用(yong)(yong)(yong)(yong)失(shi)(shi)效現場檢(jian)(jian)測辦法,對輔導中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)工程(cheng)運(yun)(yun)(yun)用(yong)(yong)(yong)(yong),降(jiang)低(di)中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)失(shi)(shi)效概(gai)率,確(que)保(bao)(bao)中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)安(an)全可(ke)靠運(yun)(yun)(yun)用(yong)(yong)(yong)(yong)有(you)著重要(yao)意義(yi)。為此(ci),這篇文章根據(ju)中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)構造特(te)點(dian)(dian),分析了影響(xiang)中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)承(cheng)載(zai)功(gong)用(yong)(yong)(yong)(yong)的(de)(de)各(ge)方面(mian)要(yao)素,提(ti)出了采(cai)用(yong)(yong)(yong)(yong)在(zai)中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)面(mian)板中(zhong)(zhong)(zhong)間施加會(hui)集荷載(zai),通(tong)過觀測中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)內、外(wai)片變形(xing)量(liang)的(de)(de)巨細或中(zhong)(zhong)(zhong)空(kong)(kong)層(ceng)(ceng)的(de)(de)厚度改變來評價中(zhong)(zhong)(zhong)空(kong)(kong)玻(bo)(bo)(bo)(bo)璃(li)(li)(li)中(zhong)(zhong)(zhong)空(kong)(kong)層(ceng)(ceng)的(de)(de)密(mi)封功(gong)用(yong)(yong)(yong)(yong),并規劃了一(yi)(yi)套(tao)配(pei)套(tao)的(de)(de)檢(jian)(jian)測設備。

  中空玻璃承載功用分析

  影響中(zhong)空(kong)(kong)玻(bo)璃(li)承載(zai)功(gong)(gong)用的主要要素為中(zhong)空(kong)(kong)玻(bo)璃(li)強(qiang)度、中(zhong)空(kong)(kong)玻(bo)璃(li)剛度及中(zhong)空(kong)(kong)玻(bo)璃(li)中(zhong)空(kong)(kong)層(ceng)密封功(gong)(gong)用。

  1.中空玻璃的強度及剛度

  中空(kong)(kong)玻(bo)璃(li)強(qiang)度(du)(du)是(shi)指中空(kong)(kong)玻(bo)璃(li)反(fan)抗外載(zai)效果的(de)(de)才(cai)(cai)(cai)能,剛度(du)(du)是(shi)指中空(kong)(kong)玻(bo)璃(li)承載(zai)變(bian)形的(de)(de)才(cai)(cai)(cai)能。明顯,在玻(bo)璃(li)資料給定后,比方(fang)普(pu)通(tong)平板玻(bo)璃(li)或鋼化玻(bo)璃(li),那么根據玻(bo)璃(li)強(qiang)度(du)(du)規劃(hua)理論(lun),玻(bo)璃(li)原(yuan)片(pian)的(de)(de)斷裂強(qiang)度(du)(du)就(jiu)確定下(xia)來了。因而,要使中空(kong)(kong)玻(bo)璃(li)承載(zai)才(cai)(cai)(cai)能提高,就(jiu)必(bi)須在同載(zai)荷(he)效果下(xia)使玻(bo)璃(li)表面彎拉(la)應力更小,這就(jiu)與(yu)中空(kong)(kong)玻(bo)璃(li)原(yuan)片(pian)尺度(du)(du)(各原(yuan)片(pian)的(de)(de)長度(du)(du)、寬(kuan)度(du)(du)、長寬(kuan)比與(yu)厚(hou)度(du)(du))及中空(kong)(kong)層(ceng)厚(hou)度(du)(du)有關。外載(zai)效果下(xia)直接(jie)分配(pei)到每(mei)片(pian)玻(bo)璃(li)上(shang)的(de)(de)載(zai)荷(he)巨細決議著中空(kong)(kong)玻(bo)璃(li)的(de)(de)承載(zai)才(cai)(cai)(cai)能。

  因為中(zhong)(zhong)(zhong)(zhong)空玻(bo)璃是由兩(liang)(liang)片(pian)(或(huo)兩(liang)(liang)片(pian)以上)玻(bo)璃構成,周(zhou)邊密封形(xing)成一個(ge)密封的空氣(qi)層,中(zhong)(zhong)(zhong)(zhong)空玻(bo)璃在一面(mian)玻(bo)璃遭到載(zai)(zai)荷效果時,受力面(mian)玻(bo)璃變(bian)形(xing)緊縮中(zhong)(zhong)(zhong)(zhong)空層氣(qi)體,氣(qi)體壓強增大(da),將有些載(zai)(zai)荷傳送給(gei)另一面(mian)玻(bo)璃,因而在氣(qi)體密封狀態下(xia),中(zhong)(zhong)(zhong)(zhong)空玻(bo)璃是兩(liang)(liang)片(pian)玻(bo)璃一起(qi)承當載(zai)(zai)荷,兩(liang)(liang)片(pian)玻(bo)璃一起(qi)變(bian)形(xing)。

  2.中空層失效狀態下中空玻璃承載特性

  在(zai)中(zhong)空(kong)層(ceng)(ceng)氣體(ti)密封(feng)的(de)情況下,氣體(ti)的(de)傳(chuan)(chuan)遞(di)(di)效果可以將一(yi)有(you)些外荷(he)載(zai)傳(chuan)(chuan)遞(di)(di)給(gei)另一(yi)片玻璃,但(dan)是當(dang)氣體(ti)層(ceng)(ceng)走漏時,中(zhong)空(kong)層(ceng)(ceng)氣體(ti)則徹底喪失了(le)傳(chuan)(chuan)遞(di)(di)荷(he)載(zai)的(de)效果,此刻,中(zhong)空(kong)玻璃接受(shou)荷(he)載(zai)徹底由直接受(shou)力的(de)那片玻璃承當(dang)。