O型(xing)(xing)(xing)圈(quan)(quan)的(de)(de)(de)材料主(zhu)要(yao)有(you)丁氰橡(xiang)膠NBR和(he)氟橡(xiang)膠FKM，氟橡(xiang)膠更(geng)適用(yong)于(yu)(yu)(yu)高溫工況。除材料之(zhi)外(wai)(wai)，O型(xing)(xing)(xing)圈(quan)(quan)很重要(yao)的(de)(de)(de)一個指(zhi)標(biao)的(de)(de)(de)是它的(de)(de)(de)硬(ying)度(du)，一般(ban)采(cai)用(yong)邵氏硬(ying)度(du)來表示，從60到90左右(you)不等(deng)，數值越(yue)(yue)大表示硬(ying)度(du)越(yue)(yue)高。在同樣壓力下(xia)，硬(ying)度(du)越(yue)(yue)高，防(fang)擠出（變形甚至(zhi)撕裂）的(de)(de)(de)能(neng)力就越(yue)(yue)強。因(yin)此，應(ying)選用(yong)硬(ying)度(du)較高的(de)(de)(de)O型(xing)(xing)(xing)圈(quan)(quan)。O型(xing)(xing)(xing)圈(quan)(quan)的(de)(de)(de)溝槽設計有(you)相關的(de)(de)(de)國(guo)家(jia)(jia)標(biao)準(zhun)，主(zhu)要(yao)分動密封(feng)、軸(zhou)向(xiang)靜密封(feng)和(he)徑向(xiang)靜密封(feng)三種。法蘭(lan)、箱蓋等(deng)的(de)(de)(de)O型(xing)(xing)(xing)圈(quan)(quan)采(cai)用(yong)軸(zhou)向(xiang)壓緊更(geng)便(bian)于(yu)(yu)(yu)裝配和(he)保證密封(feng)性能(neng)。另外(wai)(wai)，我(wo)國(guo)國(guo)家(jia)(jia)標(biao)準(zhun)中的(de)(de)(de)溝槽尺寸標(biao)準(zhun)已顯落后，如國(guo)家(jia)(jia)標(biao)準(zhun)中受內壓的(de)(de)(de)O型(xing)(xing)(xing)圈(quan)(quan)溝槽外(wai)(wai)徑等(deng)于(yu)(yu)(yu)O型(xing)(xing)(xing)圈(quan)(quan)外(wai)(wai)徑，而PARKER法蘭(lan)接(jie)頭(tou)的(de)(de)(de)O型(xing)(xing)(xing)圈(quan)(quan)溝槽外(wai)(wai)徑小于(yu)(yu)(yu)O型(xing)(xing)(xing)圈(quan)(quan)外(wai)(wai)徑。設計時應(ying)適當(dang)參考國(guo)外(wai)(wai)標(biao)準(zhun)。機械廠密封(feng)件O型(xing)(xing)(xing)圈(quan)(quan)，請聯系無(wu)錫(xi)鼎正(zheng)新材購買。安徽聚氨(an)酯O型(xing)(xing)(xing)圈(quan)(quan)型(xing)(xing)(xing)號(hao)

O型圈

墊(dian)片(pian)(pian)選(xuan)(xuan)用(yong)(yong)：1.、進(jin)口設備（包(bao)括儀器儀表）上墊(dian)片(pian)(pian)更(geng)換原(yuan)則是型(xing)(xing)式(shi)(shi)及材(cai)(cai)料(liao)原(yuan)樣(yang)更(geng)換。因特殊原(yuan)因墊(dian)片(pian)(pian)形式(shi)(shi)或(huo)(huo)(huo)材(cai)(cai)料(liao)需(xu)更(geng)換時，需(xu)經(jing)審批。2.、墊(dian)片(pian)(pian)的型(xing)(xing)式(shi)(shi)和(he)材(cai)(cai)料(liao)應(ying)根據流體、使用(yong)(yong)工況(kuang)（壓力(li)、溫度(du)）以及法(fa)蘭(lan)接頭的密封要求選(xuan)(xuan)用(yong)(yong)。法(fa)蘭(lan)密封面型(xing)(xing)式(shi)(shi)和(he)表面粗糙度(du)應(ying)與墊(dian)片(pian)(pian)的型(xing)(xing)式(shi)(shi)和(he)材(cai)(cai)料(liao)相適應(ying)。3.、石(shi)棉或(huo)(huo)(huo)柔性(xing)石(shi)墨墊(dian)片(pian)(pian)用(yong)(yong)于不銹鋼或(huo)(huo)(huo)鎳(nie)基合金(jin)法(fa)蘭(lan)時，墊(dian)片(pian)(pian)材(cai)(cai)料(liao)中(zhong)的氯離子含量不得超過50PPm。4.、柔性(xing)石(shi)墨材(cai)(cai)料(liao)用(yong)(yong)于氧化(hua)性(xing)介質時，較高(gao)使用(yong)(yong)溫度(du)應(ying)不超過450℃。5.、公稱壓力(li)小于或(huo)(huo)(huo)等于1.6MPa的法(fa)蘭(lan)，采(cai)用(yong)(yong)纏繞式(shi)(shi)墊(dian)片(pian)(pian)、金(jin)屬包(bao)覆墊(dian)片(pian)(pian)等半金(jin)屬墊(dian)或(huo)(huo)(huo)金(jin)屬環墊(dian)時，應(ying)選(xuan)(xuan)用(yong)(yong)帶頸對焊法(fa)蘭(lan)等剛性(xing)較大的法(fa)蘭(lan)結(jie)構型(xing)(xing)式(shi)(shi)（非(fei)常重要）。安徽聚氨(an)酯O型(xing)(xing)圈(quan)型(xing)(xing)號山(shan)東聚氨(an)酯O型(xing)(xing)圈(quan)批發，請聯系無錫鼎正新(xin)材(cai)(cai)。

板式熱交(jiao)換器(qi)橡(xiang)膠(jiao)(jiao)墊片密(mi)封(feng)原(yuan)理：橡(xiang)膠(jiao)(jiao)與(yu)金屬彈簧(huang)的(de)彈性不(bu)同，是(shi)(shi)一(yi)種粘彈材料這(zhe)就(jiu)意味(wei)著橡(xiang)膠(jiao)(jiao)在長期變(bian)形的(de)情(qing)況下會發生(sheng)應(ying)力(li)(li)松(song)(song)(song)(song)(song)弛(chi)(chi)，即(ji)在不(bu)變(bian)的(de)張力(li)(li)或壓力(li)(li)下，密(mi)封(feng)應(ying)力(li)(li)會隨時間的(de)延長而衰(shuai)減(jian)。較高的(de)應(ying)力(li)(li)松(song)(song)(song)(song)(song)弛(chi)(chi)是(shi)(shi)限(xian)制熱交(jiao)換器(qi)橡(xiang)膠(jiao)(jiao)墊片使用(yong)壽(shou)命的(de)重(zhong)要因(yin)素。應(ying)力(li)(li)松(song)(song)(song)(song)(song)弛(chi)(chi)有兩種,一(yi)種是(shi)(shi)物(wu)理松(song)(song)(song)(song)(song)弛(chi)(chi),這(zhe)是(shi)(shi)因(yin)聚合物(wu)分子和填充劑微粒(li)之間的(de)重(zhong)排(pai)引起的(de)，此(ci)種重(zhong)排(pai)隨著橡(xiang)膠(jiao)(jiao)的(de)變(bian)形而逐漸接(jie)衡(heng)，密(mi)封(feng)應(ying)力(li)(li)與(yu)時間的(de)對數呈(cheng)線性關系。另一(yi)種是(shi)(shi)化學松(song)(song)(song)(song)(song)弛(chi)(chi)，這(zhe)是(shi)(shi)因(yin)橡(xiang)膠(jiao)(jiao)交(jiao)聯網中化學鍵的(de)開裂引起的(de)。氧(yang)化與(yu)溫度是(shi)(shi)影(ying)響此(ci)種松(song)(song)(song)(song)(song)弛(chi)(chi)的(de)重(zhong)要因(yin)素。因(yin)此(ci)應(ying)力(li)(li)松(song)(song)(song)(song)(song)弛(chi)(chi)的(de)速率在很大(da)程度上(shang)就(jiu)取決于溫度和每種橡(xiang)膠(jiao)(jiao)墊片所適(shi)用(yong)的(de)工(gong)作溫度范(fan)圍。低溫丁腈(jing)適(shi)用(yong)于低溫范(fan)圍，因(yin)此(ci)，隨著溫度上(shang)升，其應(ying)力(li)(li)松(song)(song)(song)(song)(song)弛(chi)(chi)迅速惡(e)化，而適(shi)于高溫范(fan)圍的(de)氟橡(xiang)膠(jiao)(jiao)則(ze)相反。

O型密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)圈壓(ya)縮率W的(de)(de)選擇應(ying)考慮使用條件，靜密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)或(huo)(huo)動(dong)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)；靜密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)又(you)可分為徑(jing)(jing)向(xiang)(xiang)(xiang)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)與軸(zhou)(zhou)向(xiang)(xiang)(xiang)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)；徑(jing)(jing)向(xiang)(xiang)(xiang)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)（或(huo)(huo)稱圓柱靜密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)）的(de)(de)泄漏(lou)間隙是(shi)徑(jing)(jing)向(xiang)(xiang)(xiang)間隙，軸(zhou)(zhou)向(xiang)(xiang)(xiang)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)（或(huo)(huo)稱平面(mian)靜密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)）的(de)(de)泄漏(lou)間隙是(shi)軸(zhou)(zhou)向(xiang)(xiang)(xiang)間隙。軸(zhou)(zhou)向(xiang)(xiang)(xiang)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)根據壓(ya)力介質作用于(yu)O形(xing)圈的(de)(de)內(nei)徑(jing)(jing)還是(shi)外(wai)徑(jing)(jing)又(you)分受內(nei)壓(ya)和(he)受外(wai)壓(ya)兩種情況，內(nei)壓(ya)增加的(de)(de)拉伸(shen)，外(wai)壓(ya)降(jiang)低O形(xing)圈的(de)(de)初始拉伸(shen)。（歡迎關(guan)注：泵(beng)友圈）上述(shu)不同形(xing)式的(de)(de)靜密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)，密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)介質對O形(xing)圈的(de)(de)作用方向(xiang)(xiang)(xiang)是(shi)不同的(de)(de)，所以預壓(ya)力設計也不同。對于(yu)動(dong)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)則(ze)要區分是(shi)往復(fu)運動(dong)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)還是(shi)旋轉運動(dong)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)。徐州聚四氟O型圈批發，請聯(lian)系無錫鼎正新材。

O型密(mi)封(feng)(feng)(feng)圈(quan)(quan)適用(yong)(yong)于(yu)裝(zhuang)在各(ge)種(zhong)機(ji)(ji)械(xie)(xie)(xie)設(she)備上，在規(gui)定的(de)溫度、壓力、以及(ji)不同的(de)液體(ti)和(he)氣體(ti)介質中，于(yu)靜止或(huo)運(yun)動(dong)狀態下起(qi)密(mi)封(feng)(feng)(feng)作用(yong)(yong)。在機(ji)(ji)床、船舶(bo)、汽(qi)(qi)車、航(hang)空航(hang)天設(she)備、冶金(jin)機(ji)(ji)械(xie)(xie)(xie)、化(hua)工機(ji)(ji)械(xie)(xie)(xie)、工程機(ji)(ji)械(xie)(xie)(xie)、建筑(zhu)機(ji)(ji)械(xie)(xie)(xie)、礦山機(ji)(ji)械(xie)(xie)(xie)、石油機(ji)(ji)械(xie)(xie)(xie)、塑料機(ji)(ji)械(xie)(xie)(xie)、農業機(ji)(ji)械(xie)(xie)(xie)、以及(ji)各(ge)類(lei)儀器儀表上，大量應用(yong)(yong)著各(ge)種(zhong)類(lei)型的(de)密(mi)封(feng)(feng)(feng)元件。O型密(mi)封(feng)(feng)(feng)圈(quan)(quan)主要(yao)用(yong)(yong)于(yu)靜密(mi)封(feng)(feng)(feng)和(he)往復(fu)運(yun)動(dong)密(mi)封(feng)(feng)(feng)。用(yong)(yong)于(yu)旋轉運(yun)動(dong)密(mi)封(feng)(feng)(feng)時，于(yu)低(di)速(su)回轉密(mi)封(feng)(feng)(feng)裝(zhuang)置。O型密(mi)封(feng)(feng)(feng)圈(quan)(quan)一般(ban)安裝(zhuang)在外圓或(huo)內(nei)圓上截面為矩(ju)形的(de)溝槽內(nei)起(qi)密(mi)封(feng)(feng)(feng)作用(yong)(yong)。O型密(mi)封(feng)(feng)(feng)圈(quan)(quan)在耐(nai)油、酸堿(jian)、磨、化(hua)學侵蝕等環(huan)境(jing)依然起(qi)到良好密(mi)封(feng)(feng)(feng)、減(jian)震作用(yong)(yong)。因此，O型密(mi)封(feng)(feng)(feng)圈(quan)(quan)是液壓與氣壓傳動(dong)系(xi)統(tong)中使用(yong)(yong)較多(duo)的(de)一種(zhong)密(mi)封(feng)(feng)(feng)件。聚四氟O型圈(quan)(quan)，請聯系(xi)無錫(xi)鼎正新材購買。蕪湖汽(qi)(qi)車O型圈(quan)(quan)

蘇州聚四氟O型圈批發，請聯系無錫(xi)鼎正新(xin)材(cai)。安徽聚氨酯(zhi)O型圈型號

板(ban)(ban)式換(huan)(huan)(huan)熱(re)(re)器橡膠(jiao)密封(feng)(feng)墊(dian)(dian)(dian)片的(de)(de)(de)(de)維(wei)護：但目前有些(xie)板(ban)(ban)式換(huan)(huan)(huan)熱(re)(re)器擁有可(ke)再調(diao)節的(de)(de)(de)(de)功能，也(ye)就(jiu)是可(ke)以在出現(xian)小(xiao)量滴漏(lou)時二(er)次將換(huan)(huan)(huan)熱(re)(re)器片組(zu)擰固，達(da)(da)到(dao)增加(jia)密封(feng)(feng)墊(dian)(dian)(dian)之(zhi)間的(de)(de)(de)(de)應(ying)力，在短時間內有效解(jie)決滴漏(lou)現(xian)象。在新組(zu)裝的(de)(de)(de)(de)換(huan)(huan)(huan)熱(re)(re)器中(zhong)，可(ke)以使(shi)(shi)用(yong)較(jiao)大(da)(da)的(de)(de)(de)(de)組(zu)合長度尺(chi)(chi)寸，當出現(xian)滴漏(lou)后(hou)，再擰緊各組(zu)板(ban)(ban)式換(huan)(huan)(huan)熱(re)(re)器，較(jiao)大(da)(da)組(zu)合長度尺(chi)(chi)寸和較(jiao)小(xiao)組(zu)合長度尺(chi)(chi)寸一般都(dou)可(ke)在熱(re)(re)交換(huan)(huan)(huan)器的(de)(de)(de)(de)銘牌中(zhong)看到(dao)。需注意的(de)(de)(de)(de)是不(bu)能小(xiao)于較(jiao)小(xiao)組(zu)合長度尺(chi)(chi)寸，當組(zu)合后(hou)的(de)(de)(de)(de)換(huan)(huan)(huan)熱(re)(re)器達(da)(da)到(dao)較(jiao)小(xiao)組(zu)合長度尺(chi)(chi)寸仍出現(xian)滴漏(lou)時，說明密封(feng)(feng)墊(dian)(dian)(dian)必須需要改換(huan)(huan)(huan)了。對橡膠(jiao)密封(feng)(feng)墊(dian)(dian)(dian)的(de)(de)(de)(de)使(shi)(shi)用(yong)壽命有著重(zhong)要影響的(de)(de)(de)(de)原因為換(huan)(huan)(huan)熱(re)(re)器的(de)(de)(de)(de)工作方(fang)式、散熱(re)(re)的(de)(de)(de)(de)介質和使(shi)(shi)用(yong)的(de)(de)(de)(de)清(qing)潔劑的(de)(de)(de)(de)腐蝕(shi)性(xing)、較(jiao)高工作溫度、較(jiao)高工作壓(ya)力、由于過大(da)(da)的(de)(de)(de)(de)壓(ya)力和不(bu)均衡的(de)(de)(de)(de)壓(ya)力而(er)使(shi)(shi)彈性(xing)密封(feng)(feng)墊(dian)(dian)(dian)的(de)(de)(de)(de)應(ying)力較(jiao)大(da)(da)、自然老化。出現(xian)這些(xie)就(jiu)要及(ji)時進行維(wei)護和保(bao)養或(huo)是更換(huan)(huan)(huan)。安徽聚氨(an)酯O型圈型號

無錫鼎正新(xin)(xin)(xin)(xin)材(cai)料科技(ji)有(you)限公(gong)(gong)司(si)(si)成(cheng)立于(yu)(yu)2017-03-20，是一家(jia)專注于(yu)(yu)車(che)(che)削(xue)密(mi)(mi)(mi)封(feng)(feng)件(jian)，O型圈(quan)(quan)材(cai)料，彈(dan)性(xing)墊(dian)圈(quan)(quan)，密(mi)(mi)(mi)封(feng)(feng)件(jian)的(de)高新(xin)(xin)(xin)(xin)技(ji)術(shu)企業(ye)(ye)，公(gong)(gong)司(si)(si)位(wei)于(yu)(yu)無錫市新(xin)(xin)(xin)(xin)吳區金(jin)城東路299號(hao)五洲國際工業(ye)(ye)博覽城8棟130號(hao)。公(gong)(gong)司(si)(si)經(jing)常與(yu)行業(ye)(ye)內技(ji)術(shu)專家(jia)交流(liu)學習，研(yan)發(fa)出(chu)(chu)更好的(de)產(chan)(chan)(chan)品給用(yong)戶(hu)(hu)使用(yong)。公(gong)(gong)司(si)(si)業(ye)(ye)務(wu)不(bu)斷豐富，主要經(jing)營的(de)業(ye)(ye)務(wu)包括：車(che)(che)削(xue)密(mi)(mi)(mi)封(feng)(feng)件(jian)，O型圈(quan)(quan)材(cai)料，彈(dan)性(xing)墊(dian)圈(quan)(quan)，密(mi)(mi)(mi)封(feng)(feng)件(jian)等多系列(lie)產(chan)(chan)(chan)品和服(fu)務(wu)。可以(yi)根據客戶(hu)(hu)需求開發(fa)出(chu)(chu)多種不(bu)同功能的(de)產(chan)(chan)(chan)品，深(shen)受客戶(hu)(hu)的(de)好評。無錫鼎正新(xin)(xin)(xin)(xin)材(cai)料科技(ji)有(you)限公(gong)(gong),鼎正密(mi)(mi)(mi)封(feng)(feng)圈(quan)(quan),密(mi)(mi)(mi)封(feng)(feng)件(jian),車(che)(che)削(xue)密(mi)(mi)(mi)封(feng)(feng)件(jian)嚴(yan)格按照行業(ye)(ye)標準進行生產(chan)(chan)(chan)研(yan)發(fa)，產(chan)(chan)(chan)品在按照行業(ye)(ye)標準測試完成(cheng)后(hou)(hou)，通過質檢(jian)部門檢(jian)測后(hou)(hou)推出(chu)(chu)。我們(men)通過全新(xin)(xin)(xin)(xin)的(de)管(guan)理模式和周到的(de)服(fu)務(wu)，用(yong)心服(fu)務(wu)于(yu)(yu)客戶(hu)(hu)。無錫鼎正新(xin)(xin)(xin)(xin)材(cai)料科技(ji)有(you)限公(gong)(gong)司(si)(si)以(yi)誠信為原則，以(yi)安(an)全、便利為基礎(chu)，以(yi)優惠(hui)價格為車(che)(che)削(xue)密(mi)(mi)(mi)封(feng)(feng)件(jian)，O型圈(quan)(quan)材(cai)料，彈(dan)性(xing)墊(dian)圈(quan)(quan)，密(mi)(mi)(mi)封(feng)(feng)件(jian)的(de)客戶(hu)(hu)提供貼心服(fu)務(wu)，努力贏得客戶(hu)(hu)的(de)認(ren)可和支持，歡迎新(xin)(xin)(xin)(xin)老(lao)客戶(hu)(hu)來我們(men)公(gong)(gong)司(si)(si)參觀(guan)。

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