O型(xing)圈(quan)技術應用與普及聚(ju)四氛乙(yi)烯O型(xing)圈(quan)聚(ju)四氛乙(yi)烯又稱PTFE;鐵氟龍;特(te)(te)氟龍;特(te)(te)氟隆;4F。具有不粘(zhan)性(xing)(xing)(xing)(xing)(xing)，優良(liang)的(de)耐(nai)(nai)熱(re)和(he)耐(nai)(nai)低溫(wen)特(te)(te)性(xing)(xing)(xing)(xing)(xing)，它(ta)可以在冷凍溫(wen)度(du)下(xia)工作(zuo)而(er)不脆(cui)化，在高(gao)(gao)溫(wen)下(xia)不融化。滑動性(xing)(xing)(xing)(xing)(xing)，抗濕性(xing)(xing)(xing)(xing)(xing)，耐(nai)(nai)磨損性(xing)(xing)(xing)(xing)(xing)，耐(nai)(nai)腐(fu)蝕(shi)性(xing)(xing)(xing)(xing)(xing)，可以保護零件免于(yu)遭受任(ren)何種類(lei)的(de)化學腐(fu)蝕(shi)。丁(ding)腈橡(xiang)膠O型(xing)圈(quan)丁(ding)腈橡(xiang)膠耐(nai)(nai)油性(xing)(xing)(xing)(xing)(xing)好，耐(nai)(nai)磨性(xing)(xing)(xing)(xing)(xing)較高(gao)(gao)，耐(nai)(nai)熱(re)性(xing)(xing)(xing)(xing)(xing)較好，粘(zhan)接力強。其(qi)缺點是耐(nai)(nai)低溫(wen)性(xing)(xing)(xing)(xing)(xing)差(cha)(cha)、耐(nai)(nai)臭氧性(xing)(xing)(xing)(xing)(xing)差(cha)(cha)，絕緣(yuan)性(xing)(xing)(xing)(xing)(xing)能低劣，彈性(xing)(xing)(xing)(xing)(xing)稍(shao)低。它(ta)可以在120℃的(de)空氣(qi)中或在150℃的(de)油中長期使用。此(ci)外，它(ta)還具有良(liang)好的(de)耐(nai)(nai)水性(xing)(xing)(xing)(xing)(xing)、氣(qi)密性(xing)(xing)(xing)(xing)(xing)及優良(liang)的(de)粘(zhan)結性(xing)(xing)(xing)(xing)(xing)能。材(cai)質：聚(ju)氨酯TPU、CPU、橡(xiang)膠。產品硬度(du)：HS85±2°A 工作(zuo)溫(wen)度(du)：TPU：-40～+80℃。揚州橡(xiang)膠密封圈(quan)廠(chang)家

閥門(men)常用橡膠密(mi)(mi)封(feng)(feng)件的(de)(de)(de)(de)(de)材質有(you)哪些種？流(liu)體(ti)（氣體(ti)、液體(ti)）的(de)(de)(de)(de)(de)密(mi)(mi)封(feng)(feng)是(shi)各工業(ye)領(ling)域所必(bi)需的(de)(de)(de)(de)(de)一門(men)通(tong)用技(ji)術(shu)，不(bu)僅建筑(zhu)、石(shi)油(you)化工、船舶、機械(xie)制造、能源(yuan)、交(jiao)通(tong)、環境保護等(deng)工業(ye)離不(bu)開(kai)密(mi)(mi)封(feng)(feng)技(ji)術(shu)，航(hang)空、航(hang)天等(deng)前列工業(ye)也(ye)與密(mi)(mi)封(feng)(feng)技(ji)術(shu)緊密(mi)(mi)相關。密(mi)(mi)封(feng)(feng)技(ji)術(shu)應用的(de)(de)(de)(de)(de)領(ling)域十分大(da)范圍，凡是(shi)涉及流(liu)體(ti)的(de)(de)(de)(de)(de)儲存、運輸、能量轉換的(de)(de)(de)(de)(de)裝置都存在密(mi)(mi)封(feng)(feng)問題。密(mi)(mi)封(feng)(feng)技(ji)術(shu)的(de)(de)(de)(de)(de)重(zhong)要(yao)性(xing)密(mi)(mi)封(feng)(feng)失(shi)效造成(cheng)的(de)(de)(de)(de)(de)后(hou)(hou)果是(shi)十分嚴(yan)重(zhong)的(de)(de)(de)(de)(de)，輕者(zhe)“跑(pao)、冒(mao)、滴(di)、漏”造成(cheng)能源(yuan)和資源(yuan)的(de)(de)(de)(de)(de)浪費，重(zhong)者(zhe)會使操縱(zong)失(shi)效，甚至產(chan)生火災(zai)、爆裂、環境污染等(deng)后(hou)(hou)果危及人身安全！據初步統(tong)計機械(xie)設(she)備及武器裝備的(de)(de)(de)(de)(de)質量事故(gu)中(zhong)1/3以上是(shi)由于密(mi)(mi)封(feng)(feng)失(shi)效引(yin)起的(de)(de)(de)(de)(de)，其中(zhong)造成(cheng)嚴(yan)重(zhong)后(hou)(hou)果的(de)(de)(de)(de)(de)如(ru)：美國挑戰(zhan)號航(hang)天飛機推進(jin)器O形密(mi)(mi)封(feng)(feng)圈(quan)出(chu)現故(gu)障造成(cheng)的(de)(de)(de)(de)(de)機毀人亡；俄羅斯聯盟號宇宙飛船燃料(liao)艙泄(xie)露(lu)數名宇航(hang)員死于非(fei)命；我(wo)國東方紅(hong)三號宇航(hang)衛(wei)星升(sheng)空后(hou)(hou)管(guan)路泄(xie)露(lu)無法正常工作。這就(jiu)是(shi)現在的(de)(de)(de)(de)(de)機械(xie)制造企(qi)業(ye)為什么不(bu)惜成(cheng)本選用質量密(mi)(mi)封(feng)(feng)產(chan)品的(de)(de)(de)(de)(de)原(yuan)因。嘉(jia)興氟膠USH耐(nai)高(gao)溫(wen)密(mi)(mi)封(feng)(feng)圈(quan)O型圈(quan)很重(zhong)要(yao)的(de)(de)(de)(de)(de)一個指標的(de)(de)(de)(de)(de)是(shi)它的(de)(de)(de)(de)(de)硬(ying)度，一般采用邵氏硬(ying)度來(lai)表示(shi)，從60到90左右不(bu)等(deng)，數值越大(da)表示(shi)硬(ying)度越高(gao)。

O型(xing)圈是(shi)常用(yong)(yong)(yong)的(de)(de)一種密(mi)(mi)(mi)封(feng)件(jian)(jian)嗎？選用(yong)(yong)(yong)O型(xing)圈時(shi)，首先應(ying)盡(jin)量(liang)選用(yong)(yong)(yong)新國標，線徑2.65和(he)3.55的(de)(de)使用(yong)(yong)(yong)極為普遍，在(zai)外徑大(da)于(yu)30左(zuo)右，結構尺寸允許的(de)(de)情(qing)況(kuang)下，盡(jin)量(liang)選用(yong)(yong)(yong)線徑3.55的(de)(de)O型(xing)圈，以達到更(geng)(geng)大(da)的(de)(de)壓縮量(liang)和(he)接觸(chu)面(mian)積。O型(xing)圈的(de)(de)材(cai)料(liao)主要有丁(ding)氰橡(xiang)(xiang)膠(jiao)NBR和(he)氟橡(xiang)(xiang)膠(jiao)FKM，氟橡(xiang)(xiang)膠(jiao)更(geng)(geng)適用(yong)(yong)(yong)于(yu)高(gao)溫工況(kuang)。除材(cai)料(liao)之外，O型(xing)圈很(hen)重要的(de)(de)一個指標的(de)(de)是(shi)它的(de)(de)硬(ying)度(du)，一般(ban)采用(yong)(yong)(yong)邵(shao)氏硬(ying)度(du)來(lai)表示(shi)，從(cong)60到90左(zuo)右不等，數值越(yue)(yue)大(da)表示(shi)硬(ying)度(du)越(yue)(yue)高(gao)。在(zai)同(tong)樣(yang)壓力下，硬(ying)度(du)越(yue)(yue)高(gao)，防擠出（變形甚至撕裂）的(de)(de)能(neng)力就越(yue)(yue)強(qiang)。因此，應(ying)選用(yong)(yong)(yong)硬(ying)度(du)較高(gao)的(de)(de)O型(xing)圈。防塵(chen)密(mi)(mi)(mi)封(feng)條(tiao)，防塵(chen)密(mi)(mi)(mi)封(feng)件(jian)(jian)，防塵(chen)密(mi)(mi)(mi)封(feng)圈專業(ye)生產(chan)廠家，無錫鼎正新材(cai)料(liao)科技有限公司產(chan)品(pin)生產(chan)銷(xiao)售，橡(xiang)(xiang)膠(jiao)密(mi)(mi)(mi)封(feng)件(jian)(jian)，活塞密(mi)(mi)(mi)封(feng)和(he)活塞桿密(mi)(mi)(mi)封(feng)密(mi)(mi)(mi)封(feng)性強(qiang)

O型(xing)圈(quan)(quan)是一(yi)種截(jie)面(mian)(mian)為(wei)(wei)(wei)圓形的橡膠(jiao)密封(feng)圈(quan)(quan)，其截(jie)面(mian)(mian)因(yin)為(wei)(wei)(wei)為(wei)(wei)(wei)O型(xing)，所(suo)以(yi)顧名思義(yi)為(wei)(wei)(wei)0型(xing)圈(quan)(quan)，當然在市場上(shang)無錫O型(xing)圈(quan)(quan)受(shou)到大(da)眾(zhong)的歡迎(ying)也不是沒有(you)原因(yin)的，價格(ge)便(bian)宜，操作更是簡單(dan)便(bian)捷，安(an)(an)裝(zhuang)前就是需(xu)要(yao)涂(tu)上(shang)一(yi)層液(ye)壓(ya)油。(1)安(an)(an)裝(zhuang)前首先進行外觀檢(jian)查,表面(mian)(mian)不得有(you)飛邊(bian)毛(mao)刺、雜(za)質(zhi)、灰塵等缺陷及刮(gua)傷,斷(duan)面(mian)(mian)直徑(jing)(jing)要(yao)均勻;(2)安(an)(an)裝(zhuang)前先涂(tu)上(shang)液(ye)壓(ya)油或潤滑脂;(3)安(an)(an)裝(zhuang)時(shi)(shi)要(yao)防止(zhi)扭曲(qu)或打折、翹(qiao)起。同(tong)時(shi)(shi)要(yao)防止(zhi)器具刮(gua)傷。(4)o型(xing)圈(quan)(quan)安(an)(an)裝(zhuang)的斷(duan)面(mian)(mian)直徑(jing)(jing)壓(ya)縮量占(δ1+δ2)為(wei)(wei)(wei)5%一(yi)3.5%,用于固定密封(feng)取得偏大(da)值,用于活動密封(feng)取偏小值。O型(xing)圈(quan)(quan)(O-rings)是一(yi)種截(jie)面(mian)(mian)為(wei)(wei)(wei)圓形的橡膠(jiao)密封(feng)圈(quan)(quan)，因(yin)其截(jie)面(mian)(mian)為(wei)(wei)(wei)O型(xing)，故稱(cheng)其為(wei)(wei)(wei)O型(xing)密封(feng)圈(quan)(quan)，也叫O型(xing)圈(quan)(quan)。

如(ru)何正(zheng)確地(di)選(xuan)(xuan)擇密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)？用(yong)O形(xing)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)(以下簡稱(cheng)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan))密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)是(shi)(shi)常用(yong)的(de)(de)一種密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)方(fang)(fang)式，然而至關重(zhong)要的(de)(de)是(shi)(shi)如(ru)何正(zheng)確地(di)選(xuan)(xuan)擇密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)和(he)設(she)計(ji)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)槽尺(chi)(chi)寸(cun)(cun)。常規(gui)的(de)(de)方(fang)(fang)法(fa)是(shi)(shi)將密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)套在寶塔上用(yong)游(you)標卡尺(chi)(chi)測(ce)量(liang)(liang)(liang)(liang)外(wai)徑，再確定(ding)其相應(ying)尺(chi)(chi)寸(cun)(cun)。這種方(fang)(fang)法(fa)的(de)(de)弊端(duan)是(shi)(shi)：(1)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)是(shi)(shi)彈性體，外(wai)徑測(ce)量(liang)(liang)(liang)(liang)不準確；(2)在設(she)計(ji)新工具(ju)時(shi)，往(wang)(wang)(wang)往(wang)(wang)(wang)沒有現成的(de)(de)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)，難以確定(ding)尺(chi)(chi)寸(cun)(cun)，其過(guo)盈量(liang)(liang)(liang)(liang)往(wang)(wang)(wang)往(wang)(wang)(wang)掌握不準。過(guo)盈量(liang)(liang)(liang)(liang)太大時(shi)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)易(yi)(yi)被(bei)剪切損壞(huai)，太小(xiao)時(shi)又容(rong)易(yi)(yi)失封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)。密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)的(de)(de)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)機理：密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)屬于擠壓彈性體密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)，是(shi)(shi)靠密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)環預(yu)先被(bei)擠壓由(you)彈性變(bian)形(xing)產(chan)生預(yu)緊(jin)(jin)力，同(tong)時(shi)工作介質壓力也擠壓密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)環，使(shi)之產(chan)生自緊(jin)(jin)力。也就(jiu)是(shi)(shi)說，擠壓彈性體密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)屬于自緊(jin)(jin)式密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)。選(xuan)(xuan)配(pei)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)的(de)(de)建議：(1)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)槽的(de)(de)尺(chi)(chi)寸(cun)(cun)和(he)形(xing)狀應(ying)規(gui)范設(she)計(ji)，不可隨心所欲。(2)為保證密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)長(chang)期有效地(di)工作，必須合(he)(he)理選(xuan)(xuan)擇壓縮率（或過(guo)盈量(liang)(liang)(liang)(liang)）、拉(la)伸量(liang)(liang)(liang)(liang)和(he)孔軸(zhou)配(pei)合(he)(he)精度等(deng)。(3)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)及密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)槽的(de)(de)選(xuan)(xuan)配(pei)可由(you)計(ji)算求得。在維(wei)修時(shi)，應(ying)根據溝槽尺(chi)(chi)寸(cun)(cun)確定(ding)O型圈(quan)(quan)(quan)規(gui)格(ge)，并不是(shi)(shi)線徑越粗越好。阜(fu)陽四氟密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)

由于 O 形(xing)圈本身及安(an)裝(zhuang)部位結構都極其簡單，且已形(xing)成標準化，因此安(an)裝(zhuang)更換(huan)都非(fei)常容易。揚州橡膠密封(feng)圈廠家

O形(xing)(xing)(xing)密(mi)封(feng)(feng)圈(quan)(quan)(quan)的(de)(de)(de)(de)應(ying)用(yong)范(fan)(fan)圍有哪(na)些O形(xing)(xing)(xing)密(mi)封(feng)(feng)圈(quan)(quan)(quan)作為(wei)一種體(ti)積小，結(jie)構簡(jian)單，拆卸方便的(de)(de)(de)(de)密(mi)封(feng)(feng)圈(quan)(quan)(quan)，具有自(zi)己的(de)(de)(de)(de)優(you)勢，所以(yi)(yi)在應(ying)用(yong)范(fan)(fan)圍上也比(bi)較多(duo)，很多(duo)的(de)(de)(de)(de)行業(ye)都使(shi)用(yong)O形(xing)(xing)(xing)密(mi)封(feng)(feng)圈(quan)(quan)(quan)。O形(xing)(xing)(xing)密(mi)封(feng)(feng)圈(quan)(quan)(quan)的(de)(de)(de)(de)應(ying)用(yong)簡(jian)單的(de)(de)(de)(de)來(lai)說，一般(ban)安裝在外圓或內(nei)圓上截(jie)面為(wei)矩形(xing)(xing)(xing)的(de)(de)(de)(de)溝槽內(nei)起密(mi)封(feng)(feng)作用(yong)。O形(xing)(xing)(xing)密(mi)封(feng)(feng)圈(quan)(quan)(quan)在耐油(you)、酸堿、磨(mo)、化學侵(qin)蝕(shi)等環境依然(ran)起到良(liang)好密(mi)封(feng)(feng)、減(jian)震(zhen)作用(yong)。在機(ji)(ji)床、船舶(bo)、汽車、航(hang)空航(hang)天(tian)設備(bei)、冶(ye)金機(ji)(ji)械(xie)(xie)(xie)、化工機(ji)(ji)械(xie)(xie)(xie)、工程機(ji)(ji)械(xie)(xie)(xie)、建筑機(ji)(ji)械(xie)(xie)(xie)、礦山機(ji)(ji)械(xie)(xie)(xie)、石油(you)機(ji)(ji)械(xie)(xie)(xie)、塑料機(ji)(ji)械(xie)(xie)(xie)、農業(ye)機(ji)(ji)械(xie)(xie)(xie)、以(yi)(yi)及各類儀(yi)器儀(yi)表上，大(da)量應(ying)用(yong)著各種類型(xing)的(de)(de)(de)(de)密(mi)封(feng)(feng)元件。密(mi)封(feng)(feng)元件中O形(xing)(xing)(xing)密(mi)封(feng)(feng)圈(quan)(quan)(quan)是重(zhong)要的(de)(de)(de)(de)一種，雖然(ran)我們平時見的(de)(de)(de)(de)少，但一些機(ji)(ji)械(xie)(xie)(xie)設備(bei)上一般(ban)都有應(ying)用(yong)，且從上面的(de)(de)(de)(de)范(fan)(fan)圍介(jie)紹上可以(yi)(yi)看(kan)到，O形(xing)(xing)(xing)密(mi)封(feng)(feng)圈(quan)(quan)(quan)的(de)(de)(de)(de)確應(ying)用(yong)之(zhi)多(duo)。揚州橡膠(jiao)密(mi)封(feng)(feng)圈(quan)(quan)(quan)廠家

本文來自四(si)川精碳偉業(ye)環保(bao)科技有限(xian)責任公司：//wasul.cn/Article/34c35599610.html