柔(rou)性石墨(mo)復合墊(dian)片：柔(rou)性石墨(mo)復合墊(dian)片的較高工作壓力為6.3MPa，較高工作溫度取決于(yu)金屬(shu)芯(xin)板(ban)材(cai)料，對于(yu)低碳鋼和不銹鋼芯(xin)板(ban)分別為450℃和650℃（用(yong)于(yu)氧化(hua)性介(jie)質(zhi)時為450℃）。柔(rou)性石墨(mo)復合墊(dian)片適用(yong)于(yu)以下(xia)介(jie)質(zhi)：對液(ye)(ye)體(ti)有(you)水、油品、溶劑(ji)、酸(suan)、液(ye)(ye)態烴(jing)、低溫液(ye)(ye)化(hua)氣(qi)(qi)(qi)等(deng)；對氣(qi)(qi)(qi)體(ti)有(you)空氣(qi)(qi)(qi)、氫氣(qi)(qi)(qi)、油氣(qi)(qi)(qi)、高溫煙氣(qi)(qi)(qi)、蒸汽、烴(jing)類及(ji)各種(zhong)滲(shen)透性強的氣(qi)(qi)(qi)體(ti)等(deng)。柔(rou)性石墨(mo)復合墊(dian)片對法(fa)(fa)蘭面(mian)(mian)的加工要(yao)求(qiu)不高，可(ke)用(yong)于(yu)腐蝕性場(chang)合，適用(yong)于(yu)低壓、高溫凸(tu)面(mian)(mian)、凹凸(tu)面(mian)(mian)對焊鋼制法(fa)(fa)蘭，特別是(shi)可(ke)用(yong)來取代過(guo)去—般參數場(chang)合下(xia)使用(yong)的石棉橡膠板(ban)。江蘇(su)蝶閥O型圈(quan)(quan)批(pi)發(fa)，請聯系無錫鼎正新材(cai)。萍鄉(xiang)洗(xi)衣機(ji)O型圈(quan)(quan)

橡膠O型(xing)圈(quan)成(cheng)(cheng)(cheng)品(pin)的(de)(de)(de)脹大(da)于縮(suo)短率動搖規模(mo)很大(da)，橡膠O型(xing)圈(quan)海面(mian)成(cheng)(cheng)(cheng)品(pin)通常選(xuan)(xuan)用(yong)一(yi)(yi)次(ci)(ci)或(huo)(huo)許(xu)二(er)次(ci)(ci)硫(liu)(liu)化(hua)，發(fa)泡硫(liu)(liu)化(hua)（又成(cheng)(cheng)(cheng)發(fa)孔）模(mo)具型(xing)腔按成(cheng)(cheng)(cheng)品(pin)尺度減小60%擺布，第二(er)次(ci)(ci)按成(cheng)(cheng)(cheng)品(pin)尺度擴大(da)7%-10%作(zuo)為(wei)定型(xing)硫(liu)(liu)化(hua)膠料(liao)(liao)縮(suo)短率是一(yi)(yi)個改(gai)變多(duo)端，極為(wei)雜亂(luan)的(de)(de)(de)疑問，也(ye)是模(mo)具設(she)計(ji)者需求慎重考慮的(de)(de)(de)疑問，當前，還沒有一(yi)(yi)個真實的(de)(de)(de)，完善的(de)(de)(de)，具有實用(yong)價值的(de)(de)(de)核(he)算公式，還只能(neng)以(yi)憑借經歷(li)估計(ji)或(huo)(huo)許(xu)經過(guo)積累實踐丈量數據作(zuo)為(wei)參(can)閱。由(you)于即使是用(yong)一(yi)(yi)種(zhong)膠料(liao)(liao)，同一(yi)(yi)幅模(mo)具，在同一(yi)(yi)技術(shu)條件下（如硫(liu)(liu)化(hua)溫度一(yi)(yi)樣(yang)，硫(liu)(liu)化(hua)壓力一(yi)(yi)樣(yang)，生料(liao)(liao)添入(ru)量也(ye)一(yi)(yi)樣(yang)）硫(liu)(liu)化(hua)，所(suo)得到(dao)的(de)(de)(de)縮(suo)短率也(ye)不盡一(yi)(yi)樣(yang)因而以(yi)實驗(yan)測(ce)的(de)(de)(de)成(cheng)(cheng)(cheng)品(pin)的(de)(de)(de)縮(suo)短率也(ye)是一(yi)(yi)個近似值，再加上遭到(dao)成(cheng)(cheng)(cheng)品(pin)形狀(zhuang)，硬度，成(cheng)(cheng)(cheng)型(xing)技術(shu)等因素的(de)(de)(de)影(ying)響。開封蝶閥(fa)O型(xing)圈(quan)材(cai)質O型(xing)圈(quan)，就選(xuan)(xuan)無錫鼎(ding)正(zheng)新材(cai)料(liao)(liao)，用(yong)戶的(de)(de)(de)信(xin)賴(lai)之(zhi)選(xuan)(xuan)，歡迎(ying)新老客戶來電！

橡膠(jiao)密封圈材(cai)質(zhi)種(zhong)類及O型(xing)圈配方(fang)設計(ji)：1、NBR丁(ding)腈(jing)橡膠(jiao)密封圈：適(shi)合(he)于(yu)(yu)石(shi)油(you)系(xi)液壓(ya)油(you)、甘醇(chun)系(xi)液壓(ya)油(you)、二酯系(xi)潤(run)滑(hua)油(you)、汽油(you)、水(shui)、硅潤(run)滑(hua)脂、硅油(you)等介質(zhi)中使用(yong)。是目(mu)前用(yong)途較(jiao)(jiao)廣、成(cheng)本較(jiao)(jiao)低的(de)橡膠(jiao)密封件。不適(shi)用(yong)于(yu)(yu)極(ji)性(xing)溶(rong)劑之中，例如(ru)酮類、臭氧、硝基(ji)烴、MEK和氯(lv)仿。一般使用(yong)溫度范圍為－40～120℃。2、HNBR氫(qing)化丁(ding)腈(jing)橡膠(jiao)密封圈：具有較(jiao)(jiao)佳的(de)抗(kang)腐(fu)蝕、抗(kang)撕裂和抗(kang)壓(ya)縮變形特性(xing)，耐臭氧、耐陽(yang)光、耐天候(hou)性(xing)較(jiao)(jiao)好(hao)。比丁(ding)腈(jing)橡膠(jiao)有更佳的(de)抗(kang)磨性(xing)。適(shi)用(yong)于(yu)(yu)洗滌(di)機械(xie)、汽車發動機系(xi)統。不建議使用(yong)于(yu)(yu)醇(chun)類、酯類或是芳(fang)香族的(de)溶(rong)液中。一般使用(yong)溫度范圍為－40～150℃。

墊(dian)(dian)片(pian)選用(yong)：1.、進口設備（包(bao)括儀(yi)器儀(yi)表）上(shang)墊(dian)(dian)片(pian)更(geng)換原(yuan)則是(shi)型(xing)式及材(cai)料(liao)(liao)原(yuan)樣更(geng)換。因特殊原(yuan)因墊(dian)(dian)片(pian)形(xing)式或(huo)材(cai)料(liao)(liao)需更(geng)換時(shi)，需經審(shen)批。2.、墊(dian)(dian)片(pian)的(de)(de)型(xing)式和材(cai)料(liao)(liao)應(ying)根據流體、使用(yong)工況（壓(ya)(ya)力、溫(wen)度）以及法(fa)蘭(lan)接頭的(de)(de)密封(feng)(feng)要(yao)求選用(yong)。法(fa)蘭(lan)密封(feng)(feng)面型(xing)式和表面粗糙(cao)度應(ying)與墊(dian)(dian)片(pian)的(de)(de)型(xing)式和材(cai)料(liao)(liao)相適應(ying)。3.、石棉或(huo)柔性(xing)(xing)石墨墊(dian)(dian)片(pian)用(yong)于(yu)(yu)不(bu)銹鋼或(huo)鎳基合金法(fa)蘭(lan)時(shi)，墊(dian)(dian)片(pian)材(cai)料(liao)(liao)中(zhong)的(de)(de)氯離子含(han)量不(bu)得(de)超過50PPm。4.、柔性(xing)(xing)石墨材(cai)料(liao)(liao)用(yong)于(yu)(yu)氧化性(xing)(xing)介質時(shi)，較高使用(yong)溫(wen)度應(ying)不(bu)超過450℃。5.、公稱壓(ya)(ya)力小于(yu)(yu)或(huo)等于(yu)(yu)1.6MPa的(de)(de)法(fa)蘭(lan)，采(cai)用(yong)纏繞(rao)式墊(dian)(dian)片(pian)、金屬包(bao)覆墊(dian)(dian)片(pian)等半金屬墊(dian)(dian)或(huo)金屬環墊(dian)(dian)時(shi)，應(ying)選用(yong)帶頸對(dui)焊(han)法(fa)蘭(lan)等剛性(xing)(xing)較大的(de)(de)法(fa)蘭(lan)結構型(xing)式（非常重要(yao)）。常州(zhou)聚氨(an)酯(zhi)O型(xing)圈批發，請(qing)聯系無(wu)錫鼎正(zheng)新材(cai)。

墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)選(xuan)用(yong)(yong)(yong)：1.、在(zai)選(xuan)用(yong)(yong)(yong)墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)尺(chi)寸時，應(ying)(ying)(ying)注意保證(zheng)非(fei)金(jin)屬平(ping)墊(dian)(dian)(dian)(dian)墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)內(nei)(nei)徑(jing)或(huo)纏繞墊(dian)(dian)(dian)(dian)內(nei)(nei)環內(nei)(nei)徑(jing)不得低于(yu)法(fa)(fa)(fa)蘭(lan)內(nei)(nei)徑(jing)，如使用(yong)(yong)(yong)上要求墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)（或(huo)內(nei)(nei)環）內(nei)(nei)徑(jing)與法(fa)(fa)(fa)蘭(lan)內(nei)(nei)徑(jing)齊平(ping)時，應(ying)(ying)(ying)向墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)制造廠提供法(fa)(fa)(fa)相應(ying)(ying)(ying)的(de)(de)法(fa)(fa)(fa)蘭(lan)內(nei)(nei)徑(jing)作為(wei)墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)內(nei)(nei)徑(jing)，但應(ying)(ying)(ying)保證(zheng)墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)足夠(gou)的(de)(de)承壓(ya)寬(kuan)度。2.、對(dui)溫(wen)度、壓(ya)力(li)有變(bian)化的(de)(de)場合(he)或(huo)存(cun)在(zai)振(zhen)動(dong)、沖擊的(de)(de)場合(he)應(ying)(ying)(ying)采(cai)用(yong)(yong)(yong)具有良(liang)好回(hui)彈特(te)性的(de)(de)墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)，如波(bo)齒復合(he)墊(dian)(dian)(dian)(dian)或(huo)纏繞式墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)（帶內(nei)(nei)、外環）。3.、石(shi)棉(mian)(mian)橡(xiang)膠板墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)：建議一般只應(ying)(ying)(ying)用(yong)(yong)(yong)于(yu)溫(wen)度、壓(ya)力(li)不高(gao)的(de)(de)非(fei)重(zhong)要設備(bei)場合(he)，石(shi)棉(mian)(mian)橡(xiang)膠作為(wei)墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)應(ying)(ying)(ying)綜合(he)考慮(lv)，謹慎選(xuan)用(yong)(yong)(yong)。石(shi)棉(mian)(mian)墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)不應(ying)(ying)(ying)用(yong)(yong)(yong)于(yu)極度或(huo)高(gao)度危害(hai)介質和高(gao)真(zhen)空密封場合(he)。管道用(yong)(yong)(yong)石(shi)棉(mian)(mian)墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)的(de)(de)厚度一般為(wei)1.5～3mm，薄墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)使用(yong)(yong)(yong)壓(ya)力(li)高(gao)，但需要密封壓(ya)力(li)大，厚墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)的(de)(de)回(hui)彈性優于(yu)薄墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)，比較(jiao)容易密封，墊(dian)(dian)(dian)(dian)片(pian)(pian)(pian)(pian)(pian)比壓(ya)力(li)值亦較(jiao)低，但厚度超(chao)過3mm，對(dui)泄漏率(lv)變(bian)化不大，且壓(ya)力(li)較(jiao)高(gao)時易擠出(chu)。湖州聚氨酯(zhi)O型(xing)圈(quan)批發(fa)，請聯系無(wu)錫鼎正新材。許昌(chang)陶瓷O型(xing)圈(quan)價(jia)格

福(fu)建聚氨酯O型圈批發，請(qing)聯系無錫鼎正(zheng)新(xin)材。萍鄉洗(xi)衣機O型圈

5.壓(ya)(ya)力(li)(li)等(deng)級-從原廠機械使用說明查(cha)閱(yue)有(you)關(guan)數據，或通過(guo)觀察(cha)原密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)件的(de)(de)(de)(de)(de)(de)軟硬度和結(jie)(jie)構推斷(duan)工作(zuo)壓(ya)(ya)力(li)(li)等(deng)級。有(you)關(guan)壓(ya)(ya)力(li)(li)等(deng)級的(de)(de)(de)(de)(de)(de)說明可參考下面的(de)(de)(de)(de)(de)(de)生(sheng)產用戶注意事項。模型(xing)(xing)的(de)(de)(de)(de)(de)(de)建立幾何(he)模型(xing)(xing)的(de)(de)(de)(de)(de)(de)建立O形橡膠(jiao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)工作(zuo)時(shi)(shi)依靠密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)發生(sheng)彈性(xing)變(bian)形，在密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)接(jie)(jie)觸面上產生(sheng)接(jie)(jie)觸應(ying)力(li)(li)，當(dang)接(jie)(jie)觸應(ying)力(li)(li)大于(yu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)介(jie)質的(de)(de)(de)(de)(de)(de)壓(ya)(ya)力(li)(li)時(shi)(shi)，則不發生(sheng)泄(xie)漏。如圖1(a)所示，當(dang)O型(xing)(xing)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)裝入密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)槽后，其截(jie)面承(cheng)受接(jie)(jie)觸壓(ya)(ya)縮應(ying)力(li)(li)而產生(sheng)彈性(xing)變(bian)形，對(dui)(dui)接(jie)(jie)觸面產生(sheng)一(yi)定(ding)的(de)(de)(de)(de)(de)(de)不均勻(yun)的(de)(de)(de)(de)(de)(de)初(chu)始接(jie)(jie)觸密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)壓(ya)(ya)力(li)(li)，即(ji)使沒有(you)介(jie)質壓(ya)(ya)力(li)(li)或者壓(ya)(ya)力(li)(li)很小(xiao)，O型(xing)(xing)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)也能靠自身的(de)(de)(de)(de)(de)(de)彈性(xing)力(li)(li)作(zuo)用實現密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)。如圖1(b)所示，全(quan)氟O型(xing)(xing)圈(quan)(quan)(quan)價格，當(dang)容(rong)腔內充入有(you)壓(ya)(ya)力(li)(li)的(de)(de)(de)(de)(de)(de)介(jie)質后，在介(jie)質壓(ya)(ya)力(li)(li)p的(de)(de)(de)(de)(de)(de)作(zuo)用下，O形密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)發生(sheng)位移(yi)，移(yi)向低壓(ya)(ya)側，且(qie)其彈性(xing)變(bian)形進一(yi)步(bu)加大，填充和封(feng)(feng)(feng)(feng)閉了密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)間(jian)隙。鑒于(yu)O形橡膠(jiao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)邊界條(tiao)件的(de)(de)(de)(de)(de)(de)復雜(za)性(xing)，對(dui)(dui)其進行(xing)有(you)限元分析(xi)(xi)時(shi)(shi)，將密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)結(jie)(jie)構作(zuo)為整體(ti)分析(xi)(xi)。根據密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)結(jie)(jie)構的(de)(de)(de)(de)(de)(de)幾何(he)形狀、材料、邊界條(tiao)件的(de)(de)(de)(de)(de)(de)特點(dian)和ANSYS的(de)(de)(de)(de)(de)(de)功能，O形橡膠(jiao)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)模型(xing)(xing)可以簡(jian)化為二維平面對(dui)(dui)稱模型(xing)(xing)，并且(qie)取其1/2進行(xing)分析(xi)(xi)。萍鄉洗衣機O型(xing)(xing)圈(quan)(quan)(quan)

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