O型(xing)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)圈壓(ya)(ya)(ya)縮率(lv)W的(de)(de)(de)選擇應考慮使(shi)用條件，靜密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)或(huo)(huo)動密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)；靜密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)又可分(fen)為徑(jing)向(xiang)(xiang)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)與(yu)軸(zhou)向(xiang)(xiang)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)；徑(jing)向(xiang)(xiang)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)（或(huo)(huo)稱圓柱靜密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)）的(de)(de)(de)泄漏間(jian)隙(xi)是(shi)(shi)(shi)徑(jing)向(xiang)(xiang)間(jian)隙(xi)，軸(zhou)向(xiang)(xiang)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)（或(huo)(huo)稱平面靜密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)）的(de)(de)(de)泄漏間(jian)隙(xi)是(shi)(shi)(shi)軸(zhou)向(xiang)(xiang)間(jian)隙(xi)。軸(zhou)向(xiang)(xiang)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)根據壓(ya)(ya)(ya)力介質作用于O形(xing)圈的(de)(de)(de)內(nei)徑(jing)還是(shi)(shi)(shi)外(wai)(wai)徑(jing)又分(fen)受(shou)內(nei)壓(ya)(ya)(ya)和(he)受(shou)外(wai)(wai)壓(ya)(ya)(ya)兩種情況，內(nei)壓(ya)(ya)(ya)增(zeng)加的(de)(de)(de)拉(la)伸，外(wai)(wai)壓(ya)(ya)(ya)降(jiang)低O形(xing)圈的(de)(de)(de)初(chu)始拉(la)伸。上述不(bu)同(tong)形(xing)式的(de)(de)(de)靜密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)，密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)介質對(dui)O形(xing)圈的(de)(de)(de)作用方向(xiang)(xiang)是(shi)(shi)(shi)不(bu)同(tong)的(de)(de)(de)，所以預壓(ya)(ya)(ya)力設計(ji)也不(bu)同(tong)。對(dui)于動密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)則要(yao)區分(fen)是(shi)(shi)(shi)往復運動密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)還是(shi)(shi)(shi)旋轉運動密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)。臺州(zhou)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)件O型(xing)圈，請聯系(xi)無錫鼎正新材購(gou)買(mai)。杭州(zhou)聚(ju)氨酯O型(xing)圈生(sheng)產廠家

金(jin)(jin)(jin)屬(shu)(shu)墊(dian)片：（1）金(jin)(jin)(jin)屬(shu)(shu)環墊(dian)金(jin)(jin)(jin)屬(shu)(shu)環墊(dian)主要用(yong)(yong)于高(gao)(gao)壓、高(gao)(gao)溫(wen)的(de)(de)(de)設備(bei)和(he)管(guan)(guan)道法(fa)蘭上(shang)。國家(jia)標準(zhun)和(he)石化(hua)行(xing)業(ye)標準(zhun)規定(ding)(ding)適用(yong)(yong)于公稱壓力(li)2.0～42.0MPa，化(hua)工行(xing)業(ye)標準(zhun)適用(yong)(yong)于2.5～16.0MPa，JB/T89-94規定(ding)(ding)適用(yong)(yong)于6.3、10、16、20MPa。金(jin)(jin)(jin)屬(shu)(shu)環墊(dian)的(de)(de)(de)使(shi)用(yong)(yong)溫(wen)度(du)(du)取決于所使(shi)用(yong)(yong)的(de)(de)(de)金(jin)(jin)(jin)屬(shu)(shu)材料(liao)(liao)。金(jin)(jin)(jin)屬(shu)(shu)環墊(dian)材料(liao)(liao)的(de)(de)(de)硬度(du)(du)應比法(fa)蘭密封(feng)(feng)面(mian)(mian)(mian)材料(liao)(liao)的(de)(de)(de)硬度(du)(du)低HB30～40，且其(qi)較(jiao)(jiao)大(da)值(zhi)應符合(he)相關標準(zhun)的(de)(de)(de)規定(ding)(ding)。金(jin)(jin)(jin)屬(shu)(shu)環墊(dian)的(de)(de)(de)密封(feng)(feng)面(mian)(mian)(mian)不得有(you)劃痕、磕碰、裂(lie)紋和(he)疵點，表面(mian)(mian)(mian)粗糙度(du)(du)不大(da)于Ra1.6μm。采(cai)用(yong)(yong)10號(hao)鋼(gang)或(huo)(huo)08鋼(gang)之(zhi)稱的(de)(de)(de)金(jin)(jin)(jin)屬(shu)(shu)環墊(dian)，成品檢(jian)驗(yan)后(hou)應涂上(shang)防銹油(you)（2）金(jin)(jin)(jin)屬(shu)(shu)齒形墊(dian)片金(jin)(jin)(jin)屬(shu)(shu)齒形墊(dian)片可用(yong)(yong)于公稱壓力(li)4.0～16.0MPa的(de)(de)(de)凹凸面(mian)(mian)(mian)整體鑄(zhu)鋼(gang)管(guan)(guan)法(fa)蘭和(he)對焊鋼(gang)制管(guan)(guan)法(fa)蘭，08或(huo)(huo)10或(huo)(huo)022Cr17Ni12Mo2較(jiao)(jiao)高(gao)(gao)使(shi)用(yong)(yong)溫(wen)度(du)(du)為450℃,0Cr13較(jiao)(jiao)高(gao)(gao)使(shi)用(yong)(yong)溫(wen)度(du)(du)為540℃，06Cr19Ni9較(jiao)(jiao)高(gao)(gao)使(shi)用(yong)(yong)溫(wen)度(du)(du)為600℃。云浮碳化(hua)硅(gui)O型圈廠家(jia)無錫鼎(ding)正(zheng)新材料(liao)(liao)致力(li)于提(ti)供專業(ye)的(de)(de)(de)O型圈，歡迎您的(de)(de)(de)來電！

5.壓(ya)力(li)等級-從(cong)原廠機(ji)械使用說明查閱有(you)(you)(you)關(guan)數據，或通(tong)過觀察原密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)件的(de)(de)(de)(de)軟(ruan)硬(ying)度和結(jie)構(gou)推斷(duan)工(gong)作(zuo)(zuo)壓(ya)力(li)等級。有(you)(you)(you)關(guan)壓(ya)力(li)等級的(de)(de)(de)(de)說明可參(can)考下(xia)面(mian)的(de)(de)(de)(de)生(sheng)(sheng)產(chan)用戶注意事項。模(mo)(mo)型的(de)(de)(de)(de)建立(li)幾何模(mo)(mo)型的(de)(de)(de)(de)建立(li)O形(xing)橡膠密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)圈(quan)(quan)(quan)工(gong)作(zuo)(zuo)時依靠(kao)密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)圈(quan)(quan)(quan)發(fa)生(sheng)(sheng)彈(dan)性(xing)變(bian)(bian)形(xing)，在密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)接(jie)(jie)(jie)觸(chu)面(mian)上產(chan)生(sheng)(sheng)接(jie)(jie)(jie)觸(chu)應(ying)(ying)力(li)，當接(jie)(jie)(jie)觸(chu)應(ying)(ying)力(li)大于(yu)密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)介(jie)質(zhi)的(de)(de)(de)(de)壓(ya)力(li)時，則不發(fa)生(sheng)(sheng)泄漏。如圖1(a)所示，當O型密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)圈(quan)(quan)(quan)裝入密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)槽后，其(qi)(qi)截面(mian)承受接(jie)(jie)(jie)觸(chu)壓(ya)縮應(ying)(ying)力(li)而(er)產(chan)生(sheng)(sheng)彈(dan)性(xing)變(bian)(bian)形(xing)，對接(jie)(jie)(jie)觸(chu)面(mian)產(chan)生(sheng)(sheng)一定的(de)(de)(de)(de)不均勻的(de)(de)(de)(de)初始接(jie)(jie)(jie)觸(chu)密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)壓(ya)力(li)，即使沒(mei)有(you)(you)(you)介(jie)質(zhi)壓(ya)力(li)或者壓(ya)力(li)很小，O型密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)圈(quan)(quan)(quan)也(ye)能(neng)靠(kao)自身的(de)(de)(de)(de)彈(dan)性(xing)力(li)作(zuo)(zuo)用實現密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)。如圖1(b)所示，全氟O型圈(quan)(quan)(quan)價格，當容腔內充(chong)入有(you)(you)(you)壓(ya)力(li)的(de)(de)(de)(de)介(jie)質(zhi)后，在介(jie)質(zhi)壓(ya)力(li)p的(de)(de)(de)(de)作(zuo)(zuo)用下(xia)，O形(xing)密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)圈(quan)(quan)(quan)發(fa)生(sheng)(sheng)位移，移向低壓(ya)側(ce)，且(qie)其(qi)(qi)彈(dan)性(xing)變(bian)(bian)形(xing)進(jin)(jin)一步(bu)加大，填充(chong)和封(feng)(feng)閉了(le)密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)間隙。鑒于(yu)O形(xing)橡膠密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)圈(quan)(quan)(quan)邊(bian)界(jie)條件的(de)(de)(de)(de)復雜(za)性(xing)，對其(qi)(qi)進(jin)(jin)行(xing)有(you)(you)(you)限元(yuan)分(fen)析時，將密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)結(jie)構(gou)作(zuo)(zuo)為(wei)整體分(fen)析。根據密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)結(jie)構(gou)的(de)(de)(de)(de)幾何形(xing)狀、材料、邊(bian)界(jie)條件的(de)(de)(de)(de)特(te)點和ANSYS的(de)(de)(de)(de)功能(neng)，O形(xing)橡膠密(mi)(mi)(mi)(mi)(mi)封(feng)(feng)圈(quan)(quan)(quan)的(de)(de)(de)(de)模(mo)(mo)型可以簡化為(wei)二(er)維(wei)平面(mian)對稱模(mo)(mo)型，并(bing)且(qie)取其(qi)(qi)1/2進(jin)(jin)行(xing)分(fen)析。

橡膠密封圈的分類作用表：按類狀分1.O型密封圈系列擁有氟橡膠，丁晴膠，硅膠、乙丙橡膠、雙氟橡膠等多種材質的產品，普遍應用于各種機械，耐各類石油基油及多種化學介質：運用不膠種可滿足-60℃-+200℃(雙氟橡膠FFKM經過特定的硫化方式可達300度以上)的溫度區域，使用壓力范圍：<10MPa(液壓)，<1MPa(氣動)<16MPa(靜密封)的丁晴膠及耐汽油配(90，93，97)膨脹率為0。2.Y型密封圈擁氟膠、丁晴膠，氯橡膠等多種材質的產品，普遍應用于液壓、機械、氣動等行業。耐種石油基油個有較佳耐磨性，選用不同膠種可滿足-60℃-+200℃的溫度區域。聚氨酯O型圈，請聯系無錫鼎正新材購買。

O型圈(quan)(quan)(quan)是密封中(zhong)很常用的(de)(de)(de)(de)一種密封件。但由于(yu)選(xuan)用、溝槽(cao)設計、加工和裝配上的(de)(de)(de)(de)不當，常常造(zao)成漏油故障，可謂(wei)是小件壞(huai)大(da)事。我(wo)國(guo)國(guo)家標(biao)準(zhun)中(zhong)關于(yu)O型圈(quan)(quan)(quan)尺寸的(de)(de)(de)(de)標(biao)準(zhun)有GB1235-76、GB3452.1-88以及GB3452.1-92，其中(zhong)GB1235-76規定的(de)(de)(de)(de)O型圈(quan)(quan)(quan)截面直(zhi)徑(jing)(jing)(jing)（又稱(cheng)線徑(jing)(jing)(jing)）有1.9、2.4、3.1、3.5、5.7等，O型圈(quan)(quan)(quan)采用“外(wai)(wai)徑(jing)(jing)(jing)×線徑(jing)(jing)(jing)”的(de)(de)(de)(de)標(biao)記(ji)方法，一般稱(cheng)為(wei)老國(guo)標(biao)；GB3452.1-82與GB3452.1-92基本相同，一般稱(cheng)為(wei)新國(guo)標(biao)，它規定的(de)(de)(de)(de)O型圈(quan)(quan)(quan)截面直(zhi)徑(jing)(jing)(jing)有1.8、2.65、3.55、5.3等，新國(guo)標(biao)采用國(guo)際(ji)慣例，O型圈(quan)(quan)(quan)采用“內徑(jing)(jing)(jing)×線徑(jing)(jing)(jing)”的(de)(de)(de)(de)標(biao)記(ji)方法。選(xuan)用O型圈(quan)(quan)(quan)時，首先應(ying)盡(jin)量選(xuan)用新國(guo)標(biao)，線徑(jing)(jing)(jing)2.65和3.55的(de)(de)(de)(de)使(shi)用普遍，在(zai)外(wai)(wai)徑(jing)(jing)(jing)大(da)于(yu)30左右，結構(gou)尺寸允許(xu)的(de)(de)(de)(de)情況下，盡(jin)量選(xuan)用線徑(jing)(jing)(jing)3.55的(de)(de)(de)(de)O型圈(quan)(quan)(quan)，以達到更大(da)的(de)(de)(de)(de)壓縮量和接觸面積(ji)。安徽蝶閥(fa)O型圈(quan)(quan)(quan)批發，請聯系(xi)無(wu)錫鼎正新材。鷹潭(tan)O型圈(quan)(quan)(quan)規格

浙江聚氨酯(zhi)O型圈批發，請聯系(xi)無錫鼎正(zheng)新(xin)材。杭州聚氨酯(zhi)O型圈生產廠家

四氟墊(dian)(dian)片(pian)和硅膠墊(dian)(dian)片(pian)的(de)(de)不同(tong)(tong)之處，還體現在(zai)用(yong)途。四氟墊(dian)(dian)片(pian)在(zai)化學和醫藥工(gong)(gong)業中(zhong)應(ying)用(yong)非常普遍(bian)(bian)，它(ta)普遍(bian)(bian)應(ying)用(yong)于石油、化工(gong)(gong)、制藥、電(dian)(dian)(dian)(dian)力、鋼(gang)鐵等行業，應(ying)用(yong)介(jie)質包括幾乎所有(you)(you)化學成分，如水、油、酸、堿溶液等。硅膠墊(dian)(dian)片(pian)在(zai)不同(tong)(tong)行業都有(you)(you)使用(yong)，普遍(bian)(bian)用(yong)于有(you)(you)機玻璃、玻璃工(gong)(gong)藝品(pin)(pin)、展示(shi)架、家(jia)電(dian)(dian)(dian)(dian)產(chan)品(pin)(pin)、家(jia)私產(chan)品(pin)(pin)、五(wu)金(jin)配件、透明(ming)塑料制品(pin)(pin)等，如家(jia)用(yong)的(de)(de)餐墊(dian)(dian)、桌墊(dian)(dian)，較(jiao)強的(de)(de)吸附性(xing)能可防止鍋碗滑(hua)溜，同(tong)(tong)時起(qi)到隔熱作(zuo)用(yong);可做電(dian)(dian)(dian)(dian)子半導體的(de)(de)導電(dian)(dian)(dian)(dian)硅膠片(pian)，只因其在(zai)加(jia)入(ru)催化劑(ji)后具有(you)(you)一(yi)定的(de)(de)靜(jing)電(dian)(dian)(dian)(dian)和導電(dian)(dian)(dian)(dian)性(xing)能，在(zai)其中(zhong)嵌入(ru)五(wu)金(jin)片(pian)材(cai)，導電(dian)(dian)(dian)(dian)黑(hei)粒和涂料等來達(da)到傳感效(xiao)果;硅膠墊(dian)(dian)片(pian)通(tong)常應(ying)用(yong)在(zai)工(gong)(gong)業生產(chan)設(she)(she)備(bei)(bei)上(shang)，作(zuo)為設(she)(she)備(bei)(bei)工(gong)(gong)作(zuo)的(de)(de)緩存件、標準件，可具有(you)(you)止滑(hua)、抗震、防靜(jing)電(dian)(dian)(dian)(dian)、耐熱的(de)(de)功效(xiao)，可以更好地維護(hu)(hu)設(she)(she)備(bei)(bei)，減(jian)少耗損，堅固耐用(yong)，低碳環保(bao)又(you)環境保(bao)護(hu)(hu)。杭(hang)州聚氨酯O型圈生產(chan)廠家(jia)

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