輸(shu)送帶粘接時會出現(xian)哪(na)些問題

 一、輸送帶粘(zhan)(zhan)(zhan)(zhan)(zhan)接(jie)時出現"濕(shi)潤天不粘(zhan)(zhan)(zhan)(zhan)(zhan)" 現象時, 我們在夏天粘(zhan)(zhan)(zhan)(zhan)(zhan)合(he)(he)傳送(song)帶, 特別是(shi)雨后(hou)(hou)粘(zhan)(zhan)(zhan)(zhan)(zhan)合(he)(he), 刷膠單調后(hou)(hou)的膠粘(zhan)(zhan)(zhan)(zhan)(zhan)劑表面(mian)(mian)的粘(zhan)(zhan)(zhan)(zhan)(zhan)合(he)(he)層, 往(wang)往(wang)會(hui)呈現一層白(bai)霧, 當刷膠粘(zhan)(zhan)(zhan)(zhan)(zhan)合(he)(he)經常發現, 膠水沒(mei)有(you)(you)強(qiang)度大(da), 關節不能粘(zhan)(zhan)(zhan)(zhan)(zhan), 構(gou)(gou)成(cheng)(cheng) "濕(shi)潤天不粘(zhan)(zhan)(zhan)(zhan)(zhan)" 的現象。這(zhe)是(shi)因(yin)為(wei)夏天或雨后(hou)(hou), 空氣(qi)濕(shi)度較大(da), 在蒸發進(jin)程(cheng)中(zhong)的溶(rong)劑會(hui)從膠粘(zhan)(zhan)(zhan)(zhan)(zhan)劑層的表面(mian)(mian)帶走許多(duo)的熱(re)量, 使(shi)空氣(qi)中(zhong)的水汽在其表面(mian)(mian)凝(ning)結, 白(bai)霧的構(gou)(gou)成(cheng)(cheng)。白(bai)霧構(gou)(gou)成(cheng)(cheng)的水基界(jie)面(mian)(mian)與膠粘(zhan)(zhan)(zhan)(zhan)(zhan)劑構(gou)(gou)成(cheng)(cheng)的油(you)性界(jie)面(mian)(mian)不兼(jian)容, 兩(liang)個(ge)界(jie)面(mian)(mian)之(zhi)間(jian)構(gou)(gou)成(cheng)(cheng)的各種化學力(li)非(fei)常小(xiao), 標明粘(zhan)(zhan)(zhan)(zhan)(zhan)接(jie)接(jie)頭沒(mei)有(you)(you)強(qiang)度, 導(dao)致(zhi)粘(zhan)(zhan)(zhan)(zhan)(zhan)附失利。要(yao)處理這(zhe)些問題, 應選用烘焙法, 加(jia)熱(re)去除表面(mian)(mian)的水霧, 單調粘(zhan)(zhan)(zhan)(zhan)(zhan)合(he)(he)層不要(yao)粘(zhan)(zhan)(zhan)(zhan)(zhan)在手上, 并(bing)有(you)(you)粘(zhan)(zhan)(zhan)(zhan)(zhan)附感(gan)即可(ke)粘(zhan)(zhan)(zhan)(zhan)(zhan)合(he)(he)。

二、"預干(gan)(gan)濕" 現(xian)(xian)象在(zai)(zai)(zai)輸(shu)送帶的(de)(de)(de)運(yun)用(yong)中(zhong)(zhong)粘(zhan)(zhan)合, 特別(bie)是在(zai)(zai)(zai)夏天(tian)運(yun)用(yong)耐(nai)火膠(jiao)(jiao)(jiao)(jiao)粘(zhan)(zhan)劑(ji)時, 我們(men)(men)(men)常常覺(jue)得(de)膠(jiao)(jiao)(jiao)(jiao)粘(zhan)(zhan)劑(ji)層(ceng)的(de)(de)(de)表(biao)面(mian)(mian)現(xian)(xian)已單(dan)(dan)調(diao), 但粘(zhan)(zhan)合表(biao)面(mian)(mian)很簡單(dan)(dan)剝落, 并(bing)且(qie)膠(jiao)(jiao)(jiao)(jiao)粘(zhan)(zhan)劑(ji)側的(de)(de)(de)膠(jiao)(jiao)(jiao)(jiao)水(shui)(shui)(shui)層(ceng)與手接(jie)觸也與粘(zhan)(zhan)性, 構成 "預干(gan)(gan)濕" 的(de)(de)(de)現(xian)(xian)象, 這(zhe)是因為夏天(tian)高溫, 膠(jiao)(jiao)(jiao)(jiao)粘(zhan)(zhan)劑(ji)中(zhong)(zhong)的(de)(de)(de)溶劑(ji)蒸(zheng)(zheng)(zheng)發(fa)速度(du)(du)快(kuai)于秋(qiu)冬, 而我們(men)(men)(men)在(zai)(zai)(zai)拋光輸(shu)送帶粘(zhan)(zhan)面(mian)(mian)刷膠(jiao)(jiao)(jiao)(jiao), 部分膠(jiao)(jiao)(jiao)(jiao)水(shui)(shui)(shui)對(dui)輸(shu)送帶內的(de)(de)(de)滲透(tou), 構成像鉚(liu)釘的(de)(de)(de)鉚(liu)接(jie)點(dian), 這(zhe)部分膠(jiao)(jiao)(jiao)(jiao)水(shui)(shui)(shui)溶劑(ji)蒸(zheng)(zheng)(zheng)發(fa)的(de)(de)(de)速度(du)(du)比(bi)表(biao)面(mian)(mian)蒸(zheng)(zheng)(zheng)發(fa)慢, 在(zai)(zai)(zai)高溫單(dan)(dan)調(diao)和快(kuai)的(de)(de)(de)環境(jing)下通(tong)常是單(dan)(dan)調(diao)通(tong)過表(biao)面(mian)(mian), 并(bing)且(qie)溶劑(ji)里面(mian)(mian)沒有完(wan)全蒸(zheng)(zheng)(zheng)發(fa), 然后在(zai)(zai)(zai)關節粘(zhan)(zhan)合, 溶劑(ji)里面(mian)(mian)會逐漸蒸(zheng)(zheng)(zheng)發(fa), 通(tong)過一段時間會潤(run)澤粘(zhan)(zhan)合層(ceng), 損壞粘(zhan)(zhan)合表(biao)面(mian)(mian), 影響(xiang)粘(zhan)(zhan)合影響(xiang)。為了消除上述影響(xiang), 我們(men)(men)(men)需求刷榜(bang)首膠(jiao)(jiao)(jiao)(jiao), 以(yi)確保足夠的(de)(de)(de)單(dan)(dan)調(diao)時間或烘烤, 以(yi)確保滲透(tou)到(dao)傳送帶膠(jiao)(jiao)(jiao)(jiao)液溶劑(ji)充沛蒸(zheng)(zheng)(zheng)發(fa), 構成一個安穩的(de)(de)(de)粘(zhan)(zhan)合層(ceng)。

三、 "干頭(tou)" 現象在(zai)粘(zhan)(zhan)(zhan)(zhan)(zhan)接(jie)(jie)輸送帶接(jie)(jie)頭(tou)的(de)(de)進(jin)程(cheng)中(zhong), 我(wo)們有(you)時(shi)會依據粘(zhan)(zhan)(zhan)(zhan)(zhan)接(jie)(jie)進(jin)程(cheng)中(zhong)的(de)(de)一(yi)切進(jin)程(cheng), 還發(fa)現連(lian)(lian)接(jie)(jie)器沒有(you)粘(zhan)(zhan)(zhan)(zhan)(zhan), 剝開(kai)連(lian)(lian)接(jie)(jie)器, 發(fa)現粘(zhan)(zhan)(zhan)(zhan)(zhan)合(he)層(ceng)(ceng)不(bu)粘(zhan)(zhan)(zhan)(zhan)(zhan),表(biao)面的(de)(de)膠(jiao)粘(zhan)(zhan)(zhan)(zhan)(zhan)劑(ji)(ji)硬, 有(you)光澤, 這(zhe)是 "干頭(tou)" 的(de)(de)現象。這(zhe)是在(zai)刷膠(jiao)單(dan)調或烘(hong)焙進(jin)程(cheng)中(zhong), 為(wei)了(le)確(que)保(bao)溶(rong)劑(ji)(ji)的(de)(de)完全(quan)(quan)(quan)蒸(zheng)發(fa), 確(que)保(bao)膠(jiao)粘(zhan)(zhan)(zhan)(zhan)(zhan)劑(ji)(ji)層(ceng)(ceng)的(de)(de)完全(quan)(quan)(quan)固(gu)(gu)化(hua), 過度延伸單(dan)調或烘(hong)焙時(shi)間, 使膠(jiao)粘(zhan)(zhan)(zhan)(zhan)(zhan)劑(ji)(ji)已完全(quan)(quan)(quan)固(gu)(gu)化(hua)或已完全(quan)(quan)(quan)固(gu)(gu)化(hua)或已被(bei)固(gu)(gu)化(hua)。快速完全(quan)(quan)(quan)固(gu)(gu)化(hua), 使粘(zhan)(zhan)(zhan)(zhan)(zhan)合(he)時(shi)兩層(ceng)(ceng)表(biao)面分子間的(de)(de)力(li)和(he)化(hua)學力(li)變得(de)非常(chang)小, 導致關(guan)節(jie)粘(zhan)(zhan)(zhan)(zhan)(zhan)連(lian)(lian)。這(zhe)就(jiu)要求我(wo)們在(zai)單(dan)調或烘(hong)烤(kao)時(shi), 依據現場(chang)溫度、氣候(hou)等實際(ji)情況, 控制恰當(dang)的(de)(de)時(shi)間, 不(bu)只要確(que)保(bao)溶(rong)劑(ji)(ji)在(zai)輸送帶中(zhong)的(de)(de)滲(shen)透蒸(zheng)發(fa), 還要做膠(jiao)粘(zhan)(zhan)(zhan)(zhan)(zhan)劑(ji)(ji)層(ceng)(ceng)狀和(he)粘(zhan)(zhan)(zhan)(zhan)(zhan)性, 以(yi)確(que)保(bao)榜首膠(jiao)完全(quan)(quan)(quan)單(dan)調, 留(liu)意第(di)二, 第(di)三膠(jiao)水單(dan)調, 以(yi)不(bu)粘(zhan)(zhan)(zhan)(zhan)(zhan)的(de)(de)手和(he)粘(zhan)(zhan)(zhan)(zhan)(zhan)附能夠 。

標簽： 輸送帶、 PVC輸送帶、 阻燃輸送帶、 EP輸送帶、 花紋輸送帶、 環形輸送帶、 耐酸堿輸送帶、