不(bu)(bu)同種(zhong)類橡(xiang)膠密(mi)(mi)封(feng)圈(quan)有何應用(yong)(yong)(yong)NBR丁(ding)氰橡(xiang)膠密(mi)(mi)封(feng)圈(quan)：這種(zhong)密(mi)(mi)封(feng)圈(quan)是目前成本較低、應用(yong)(yong)(yong)范圍(wei)廣的一(yi)種(zhong)密(mi)(mi)封(feng)件它(ta)非常(chang)(chang)適合用(yong)(yong)(yong)在(zai)(zai)汽油(you)、石油(you)、甘醇等介質中(zhong)，但不(bu)(bu)宜用(yong)(yong)(yong)于(yu)極性(xing)溶劑中(zhong)。FLS氟(fu)(fu)硅橡(xiang)膠密(mi)(mi)封(feng)圈(quan)：這種(zhong)密(mi)(mi)封(feng)圈(quan)的性(xing)能較為均(jun)衡，它(ta)綜合了硅橡(xiang)膠與(yu)氟(fu)(fu)氯橡(xiang)膠的優點(dian)，在(zai)(zai)耐高溫、耐低溫、耐油(you)、耐溶劑等方面(mian)都(dou)有出色的表(biao)現(xian)。它(ta)的使用(yong)(yong)(yong)溫度范圍(wei)在(zai)(zai)零下五十度到兩百(bai)攝氏度之間，常(chang)(chang)常(chang)(chang)內用(yong)(yong)(yong)于(yu)領域(yu)，比如(ru)航空(kong)航天領域(yu)等等。EPDM三元(yuan)乙丙(bing)橡(xiang)膠密(mi)(mi)封(feng)圈(quan)：具有很好的耐候性(xing)、耐臭氧(yang)性(xing)、耐水(shui)性(xing)及(ji)(ji)耐化(hua)學性(xing)。可用(yong)(yong)(yong)于(yu)醇類及(ji)(ji)酮類，還可用(yong)(yong)(yong)于(yu)高溫水(shui)蒸氣環境之密(mi)(mi)封(feng)。適用(yong)(yong)(yong)于(yu)衛浴設備、汽車(che)散熱(re)器(qi)及(ji)(ji)汽車(che)剎車(che)系統(tong)中(zhong)。不(bu)(bu)建議(yi)用(yong)(yong)(yong)于(yu)食品用(yong)(yong)(yong)途或是暴露于(yu)礦物油(you)之中(zhong)。O型(xing)圈(quan)(O-rings)是一(yi)種(zhong)截面(mian)為圓形的橡(xiang)膠密(mi)(mi)封(feng)圈(quan)，因(yin)其(qi)(qi)截面(mian)為O型(xing)，故(gu)稱其(qi)(qi)為O型(xing)密(mi)(mi)封(feng)圈(quan)，也叫O型(xing)圈(quan)。南(nan)通星型(xing)密(mi)(mi)封(feng)圈(quan)生產(chan)廠家

做硅膠(jiao)密(mi)(mi)封(feng)圈(quan)用(yong)什么(me)硬度合適(shi)密(mi)(mi)封(feng)圈(quan)除應具備密(mi)(mi)封(feng)圈(quan)材(cai)料(liao)(liao)的(de)(de)一般(ban)要(yao)求外，密(mi)(mi)封(feng)圈(quan)還要(yao)注(zhu)意(yi)下述(shu)條件：(1)富有彈性(xing)和(he)回彈性(xing);(2)適(shi)當的(de)(de)機械強度，包括擴張強度、伸長率和(he)抗撕(si)裂強度等(deng)。(3)性(xing)能穩定，在(zai)介(jie)質(zhi)中(zhong)不(bu)(bu)(bu)易溶脹，熱收(shou)縮(suo)效(xiao)(xiao)應(焦耳(er)效(xiao)(xiao)應)小。(4)易加工成(cheng)型(xing)，并能保持精密(mi)(mi)的(de)(de)尺寸。(5)不(bu)(bu)(bu)腐蝕(shi)接(jie)觸面，不(bu)(bu)(bu)污染(ran)介(jie)質(zhi)等(deng)。滿足上述(shu)要(yao)求的(de)(de)極適(shi)合而且極常用(yong)的(de)(de)材(cai)料(liao)(liao)是橡(xiang)(xiang)(xiang)膠(jiao)，所以密(mi)(mi)封(feng)圈(quan)大多用(yong)橡(xiang)(xiang)(xiang)膠(jiao)材(cai)料(liao)(liao)制(zhi)成(cheng)。橡(xiang)(xiang)(xiang)膠(jiao)的(de)(de)品(pin)種很多，而且不(bu)(bu)(bu)斷有新(xin)的(de)(de)橡(xiang)(xiang)(xiang)膠(jiao)品(pin)種出現，設計與選用(yong)時(shi)，應了解各種橡(xiang)(xiang)(xiang)膠(jiao)的(de)(de)特性(xing)，合理選擇。宿遷液壓密(mi)(mi)封(feng)圈(quan)廠家O型(xing)密(mi)(mi)封(feng)圈(quan)在(zai)耐(nai)油、酸堿、磨、化學侵蝕(shi)等(deng)環境依然起到良好密(mi)(mi)封(feng)、減震作用(yong)。

無(wu)錫鼎正新材料科技有限公司分享：選購O型圈(quan)(quan)的(de)注意事項4、預(yu)壓(ya)縮(suo)(suo)量O形圈(quan)(quan)安裝(zhuang)在(zai)(zai)溝槽里，為(wei)保證(zheng)其密(mi)(mi)(mi)封性能，應(ying)(ying)預(yu)留(liu)一(yi)個(ge)初始壓(ya)縮(suo)(suo)量。對(dui)于不(bu)同的(de)應(ying)(ying)用(yong)(yong)場(chang)合(he)，相對(dui)于截面直(zhi)徑W的(de)預(yu)壓(ya)縮(suo)(suo)量也不(bu)同。通(tong)常，在(zai)(zai)靜密(mi)(mi)(mi)封中(zhong)約為(wei)15%~30%，而(er)在(zai)(zai)動密(mi)(mi)(mi)封中(zhong)約為(wei)9%~25%。5、拉(la)(la)伸與(yu)壓(ya)縮(suo)(suo)將O形圈(quan)(quan)安裝(zhuang)在(zai)(zai)溝槽內(nei)時，要(yao)受到拉(la)(la)伸或壓(ya)縮(suo)(suo)。若拉(la)(la)伸和壓(ya)縮(suo)(suo)的(de)數值(zhi)過大，將導致O形圈(quan)(quan)截面過度(du)增大或減小(xiao)(xiao)，因為(wei)拉(la)(la)伸1%相應(ying)(ying)地使截面直(zhi)徑減小(xiao)(xiao)約0.5%。對(dui)于孔用(yong)(yong)密(mi)(mi)(mi)封，0形圈(quan)(quan)處(chu)于拉(la)(la)伸狀態，允(yun)許(xu)拉(la)(la)伸量為(wei)6%;對(dui)于軸用(yong)(yong)密(mi)(mi)(mi)封，O形圈(quan)(quan)比較(jiao)好沿(yan)其周長(chang)方向(xiang)受壓(ya)縮(suo)(suo)，允(yun)許(xu)周長(chang)壓(ya)縮(suo)(suo)量為(wei)3%

如(ru)何正(zheng)(zheng)確(que)選擇o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)規(gui)格(ge)正(zheng)(zheng)確(que)選擇o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)規(gui)格(ge)主要(yao)(yao)(yao)與材料(liao)，尺寸，公差，壓(ya)縮(suo)量(liang)(liang)(liang)有(you)重(zhong)要(yao)(yao)(yao)直接關系。以下是(shi)(shi)無錫鼎正(zheng)(zheng)新(xin)材料(liao)科技有(you)限(xian)公司的(de)(de)(de)經(jing)驗供大家分享：4、選擇o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)規(gui)格(ge)時壓(ya)縮(suo)量(liang)(liang)(liang)是(shi)(shi)很(hen)重(zhong)要(yao)(yao)(yao)的(de)(de)(de)，因為選擇不(bu)正(zheng)(zheng)確(que)，在產品(pin)組裝時不(bu)然就(jiu)不(bu)密封，不(bu)然就(jiu)組裝時太緊，這(zhe)樣就(jiu)沒有(you)起到產品(pin)的(de)(de)(de)所需的(de)(de)(de)作用(yong)。那(nei)我們如(ru)何正(zheng)(zheng)確(que)選擇o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)規(gui)格(ge)的(de)(de)(de)壓(ya)縮(suo)量(liang)(liang)(liang)呢，下面給(gei)你們做(zuo)參考：o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)的(de)(de)(de)壓(ya)縮(suo)量(liang)(liang)(liang)一般是(shi)(shi)主要(yao)(yao)(yao)決定(ding)于(yu)o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)的(de)(de)(de)硬度(du)(du)與材料(liao)，如(ru)果o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)的(de)(de)(de)硬度(du)(du)是(shi)(shi)70度(du)(du)時，那(nei)么o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)的(de)(de)(de)壓(ya)縮(suo)量(liang)(liang)(liang)等于(yu)20%。那(nei)當然，o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)的(de)(de)(de)硬度(du)(du)越(yue)(yue)低(di)(di)，o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)的(de)(de)(de)壓(ya)縮(suo)量(liang)(liang)(liang)就(jiu)越(yue)(yue)大，主要(yao)(yao)(yao)用(yong)于(yu)低(di)(di)壓(ya)力的(de)(de)(de)場所。那(nei)么o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)的(de)(de)(de)硬度(du)(du)越(yue)(yue)高，o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)的(de)(de)(de)壓(ya)縮(suo)量(liang)(liang)(liang)就(jiu)越(yue)(yue)小(xiao)(xiao)，主要(yao)(yao)(yao)用(yong)于(yu)高壓(ya)力、耐壓(ya)、阻力小(xiao)(xiao)的(de)(de)(de)環境使用(yong)。以此類推，就(jiu)可(ke)以得到你所需要(yao)(yao)(yao)的(de)(de)(de)任何硬度(du)(du)o型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)的(de)(de)(de)壓(ya)縮(suo)量(liang)(liang)(liang)。O型(xing)(xing)(xing)(xing)(xing)圈(quan)(quan)(quan)(quan)的(de)(de)(de)優勢（2）適合各種(zhong)用(yong)途材料(liao)，尺寸和溝槽(cao)都(dou)已標(biao)準化，互換性強(qiang)。

硅(gui)(gui)(gui)膠(jiao)(jiao)(jiao)密(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)優點和(he)缺(que)點說了(le)這(zhe)么(me)多(duo)硅(gui)(gui)(gui)橡(xiang)膠(jiao)(jiao)(jiao)密(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)的優點。他(ta)的缺(que)點也是(shi)(shi)比較明顯的，其缺(que)點決(jue)定了(le)其在哪些環境(jing)中不(bu)(bu)太適(shi)合(he)使用(yong)硅(gui)(gui)(gui)膠(jiao)(jiao)(jiao)密(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)。首先在工作壓力超過50磅的工作環境(jing)下不(bu)(bu)適(shi)合(he)用(yong)硅(gui)(gui)(gui)膠(jiao)(jiao)(jiao)密(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)，硅(gui)(gui)(gui)橡(xiang)膠(jiao)(jiao)(jiao)雖然與大(da)多(duo)數的油、化(hua)合(he)物及(ji)(ji)溶劑兼(jian)容，具(ju)有很好的耐(nai)酸堿(jian)性(xing)(xing)能(neng)(neng)，但是(shi)(shi)對于烷氫和(he)芳香族類的油沒(mei)有什么(me)抵抗(kang)性(xing)(xing)。還(huan)有就是(shi)(shi)不(bu)(bu)建議(yi)在大(da)多(duo)數濃(nong)縮的溶劑、油品、濃(nong)酸及(ji)(ji)稀釋后的火(huo)堿(jian)溶液(ye)中使用(yong)硅(gui)(gui)(gui)膠(jiao)(jiao)(jiao)密(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)。一些加入特殊配料額特種(zhong)硅(gui)(gui)(gui)膠(jiao)(jiao)(jiao)密(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)還(huan)具(ju)有耐(nai)輻射(she)、耐(nai)燃、耐(nai)油的性(xing)(xing)能(neng)(neng)，但是(shi)(shi)硅(gui)(gui)(gui)硅(gui)(gui)(gui)橡(xiang)膠(jiao)(jiao)(jiao)一直的缺(que)點就是(shi)(shi)機械性(xing)(xing)能(neng)(neng)較差，對于在工作環境(jing)中存在拉抻、撕扯、強磨損的環境(jing)中不(bu)(bu)建議(yi)使用(yong)硅(gui)(gui)(gui)膠(jiao)(jiao)(jiao)密(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)，通常(chang)請款下只(zhi)作為靜(jing)密(mi)封(feng)(feng)(feng)(feng)使用(yong)。氟橡(xiang)膠(jiao)(jiao)(jiao)(FPM)：耐(nai)高(gao)溫(wen)性(xing)(xing)強，可達280度(du)的高(gao)溫(wen)，具(ju)有良好的抗(kang)老化(hua)和(he)抗(kang)氧化(hua)、非常(chang)低的氣體滲透性(xing)(xing)。宿遷硅(gui)(gui)(gui)膠(jiao)(jiao)(jiao)密(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)設計

在數次變形后(hou)產生的熱量小且(qie)耐屈(qu)撓性(xing)也很好(hao)，并且(qie)天然橡膠屬于非極性(xing)橡膠，所以(yi)絕(jue)緣性(xing)能好(hao)。南通星型密封圈生產廠家

防(fang)塵密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)圈有(you)(you)哪(na)些性(xing)(xing)能(neng)(neng)，跟著(zhu)無錫鼎正新材料科技有(you)(you)限公司一(yi)(yi)起來(lai)瞧(qiao)一(yi)(yi)瞧(qiao)吧(ba)！2、羥基封(feng)(feng)(feng)(feng)(feng)(feng)端氟(fu)硅密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)劑的(de)(de)性(xing)(xing)能(neng)(neng)羥基封(feng)(feng)(feng)(feng)(feng)(feng)端氟(fu)硅密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)劑長期(qi)(qi)工(gong)作溫(wen)度(du)為(wei)一(yi)(yi)55~185°C，可(ke)在230°C短(duan)期(qi)(qi)使用(yong)(yong)。具(ju)有(you)(you)耐(nai)航空煤(mei)油、汽油、柴油、滑油、液(ye)壓(ya)油和(he)水(shui)浸泡的(de)(de)能(neng)(neng)力(li)(li)，對(dui)鋁合金、鋼不(bu)腐蝕并有(you)(you)良(liang)好的(de)(de)粘接(jie)(jie)力(li)(li)，可(ke)作為(wei)結(jie)構貼合面(mian)、連接(jie)(jie)件頭部、填角的(de)(de)密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)劑。耐(nai)受(shou)各種環(huan)境試驗(yan)后仍(reng)能(neng)(neng)保持良(liang)好的(de)(de)力(li)(li)學性(xing)(xing)能(neng)(neng)。3、羥基封(feng)(feng)(feng)(feng)(feng)(feng)端氟(fu)硅亞(ya)苯基密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)劑的(de)(de)性(xing)(xing)能(neng)(neng)與(yu)羥基封(feng)(feng)(feng)(feng)(feng)(feng)端氟(fu)硅密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)劑的(de)(de)性(xing)(xing)能(neng)(neng)大致(zhi)相仿(fang)，不(bu)同之處是能(neng)(neng)耐(nai)受(shou)更高的(de)(de)溫(wen)度(du)和(he)抗(kang)輻射性(xing)(xing)能(neng)(neng)，使用(yong)(yong)溫(wen)度(du)范圍為(wei)一(yi)(yi)55~200°C，可(ke)在250°C短(duan)期(qi)(qi)使用(yong)(yong)。南通星型密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)圈生產廠家

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