在(zai)飛(fei)(fei)機上(shang)，其(qi)實(shi)有很(hen)多(duo)的(de)(de)(de)系統(tong)(tong)(tong)(tong)采(cai)用流體傳動。比如說液(ye)壓(ya)系統(tong)(tong)(tong)(tong)里(li)液(ye)壓(ya)油(you)(you)、燃油(you)(you)系統(tong)(tong)(tong)(tong)中的(de)(de)(de)燃油(you)(you)、滑(hua)(hua)油(you)(you)系統(tong)(tong)(tong)(tong)中的(de)(de)(de)滑(hua)(hua)油(you)(you)、飲用水系統(tong)(tong)(tong)(tong)中的(de)(de)(de)水。當(dang)然，飛(fei)(fei)機上(shang)還有氣動系統(tong)(tong)(tong)(tong)。在(zai)這(zhe)些系統(tong)(tong)(tong)(tong)使用和維護中，最(zui)難解決的(de)(de)(de)、也是最(zui)多(duo)的(de)(de)(de)問題就(jiu)是滲(shen)漏。這(zhe)些滲(shen)漏常見的(de)(de)(de)地方莫過于輸送管道的(de)(de)(de)連接處密封圈的(de)(de)(de)變形、劃傷(shang)、磨(mo)損而導致的(de)(de)(de)滲(shen)漏。　　滲(shen)漏不但影響系統(tong)(tong)(tong)(tong)的(de)(de)(de)工作(zuo)效(xiao)率，嚴重時可(ke)能危(wei)及航空器的(de)(de)(de)飛(fei)(fei)行安全，所以(yi)飛(fei)(fei)機上(shang)會大量采(cai)用密封元件。O型密封圈的(de)(de)(de)作(zuo)用就(jiu)是阻擋

O型(xing)(xing)密(mi)封圈(quan)(quan)(quan)是目前(qian)較常(chang)用的密(mi)封圈(quan)(quan)(quan)之一，而氟(fu)(fu)橡(xiang)膠O型(xing)(xing)密(mi)封圈(quan)(quan)(quan)又是一種較常(chang)用的材質(zhi)(zhi)，那氟(fu)(fu)橡(xiang)膠具有那些性(xing)能(neng)呢？O型(xing)(xing)密(mi)封圈(quan)(quan)(quan)廠(chang)家(jia)東盛迪告訴你。氟(fu)(fu)橡(xiang)膠O型(xing)(xing)密(mi)封圈(quan)(quan)(quan)是乙(yi)烯基氟(fu)(fu)化(hua)物、六氟(fu)(fu)丙烯及多種配(pei)方配(pei)制混煉而成的密(mi)封圈(quan)(quan)(quan)，具有良好的阻燃(ran)性(xing)、氣密(mi)性(xing)、耐(nai)(nai)高溫、耐(nai)(nai)油(you)、耐(nai)(nai)溶劑、耐(nai)(nai)燃(ran)、耐(nai)(nai)化(hua)學(xue)(xue)物與耐(nai)(nai)氣候的性(xing)質(zhi)(zhi)，通(tong)常(chang)用于汽車(che)業(ye)、化(hua)學(xue)(xue)制程、航天與許多行業(ye)上。氟(fu)(fu)橡(xiang)膠O型(xing)(xing)密(mi)封圈(quan)(quan)(quan)使用溫度(du)可(ke)達250度(du)的高溫，短(duan)時可(ke)耐(nai)(nai)300°C高溫，它以耐(nai)(nai)高溫

O型密(mi)(mi)封(feng)圈(quan)(quan)(quan)是(shi)目前較(jiao)常用的(de)密(mi)(mi)封(feng)件之一，很多人在(zai)做選擇的(de)時(shi)候由于(yu)(yu)對于(yu)(yu)密(mi)(mi)封(feng)圈(quan)(quan)(quan)材質、硬(ying)度(du)(du)等各種性(xing)能(neng)技術(shu)要(yao)求還不(bu)是(shi)很清楚，接下來(lai)東盛迪密(mi)(mi)封(feng)告訴(su)你。由于(yu)(yu)橡(xiang)膠是(shi)彈性(xing)材料，在(zai)負荷作(zuo)用下會發生變形，尤其(qi)是(shi)在(zai)壓力高(gao)的(de)情況下，會讓(rang)密(mi)(mi)封(feng)圈(quan)(quan)(quan)擠入密(mi)(mi)封(feng)間隙，影響浮動性(xing)而使(shi)密(mi)(mi)封(feng)性(xing)失(shi)效。因(yin)此，要(yao)根(gen)據使(shi)用壓力合理選擇O型密(mi)(mi)封(feng)圈(quan)(quan)(quan)的(de)硬(ying)度(du)(du)和(he)其(qi)截(jie)面直徑。一般(ban)高(gao)壓時(shi)選擇硬(ying)度(du)(du)比較(jiao)高(gao)的(de)密(mi)(mi)封(feng)圈(quan)(quan)(quan)，低壓時(shi)選擇硬(ying)度(du)(du)比較(jiao)低的(de)密(mi)(mi)封(feng)圈(quan)(quan)(quan)。常用橡(xiang)膠O型密(mi)(mi)封(feng)圈(quan)(quan)(quan)的(de)硬(ying)度(du)(du)

O型密(mi)封圈(quan)使用廣泛(fan)，在眾多(duo)橡(xiang)膠(jiao)(jiao)材(cai)(cai)質中(zhong)，氟橡(xiang)膠(jiao)(jiao)也(ye)是(shi)(shi)(shi)比較常用的(de)材(cai)(cai)質之一，那(nei)么(me)氟橡(xiang)膠(jiao)(jiao)O型密(mi)封圈(quan)有(you)什么(me)特點呢？氟橡(xiang)膠(jiao)(jiao)O型密(mi)封可以想象成為不(bu)可壓縮的(de)、具有(you)提高表面張力(li)(li)的(de)“高粘度流體(ti)”。不(bu)論是(shi)(shi)(shi)受周圍(wei)機(ji)械結(jie)構的(de)機(ji)械壓力(li)(li)作用、還是(shi)(shi)(shi)受液壓流體(ti)傳遞(di)的(de)壓力(li)(li)作用，這種“高粘度流體(ti)”在溝槽中(zhong)“流動”，形成“零空間”，或(huo)者(zhe)說阻止了被(bei)其密(mi)封的(de)流體(ti)的(de)流動。橡(xiang)膠(jiao)(jiao)的(de)彈(dan)性補償了制造和裝配公差(cha)，其材(cai)(cai)料內(nei)部的(de)彈(dan)性記憶是(shi)(shi)(shi)維持密(mi)封的(de)重要條件。

氫化(hua)(hua)(hua)丁(ding)(ding)(ding)腈(jing)(jing)(jing)橡(xiang)(xiang)膠(jiao)相對丁(ding)(ding)(ding)腈(jing)(jing)(jing)橡(xiang)(xiang)膠(jiao)來(lai)說使(shi)用較少，O型密(mi)封(feng)圈中比(bi)較常見的也(ye)是(shi)丁(ding)(ding)(ding)腈(jing)(jing)(jing)橡(xiang)(xiang)膠(jiao)，但因氫化(hua)(hua)(hua)丁(ding)(ding)(ding)腈(jing)(jing)(jing)橡(xiang)(xiang)膠(jiao)的綜合性能也(ye)比(bi)較好，因此也(ye)常用于(yu)O型密(mi)封(feng)圈中，接下(xia)來(lai)東盛迪密(mi)封(feng)就為大家(jia)介紹氫化(hua)(hua)(hua)丁(ding)(ding)(ding)腈(jing)(jing)(jing)O型密(mi)封(feng)圈的主要工藝與(yu)(yu)特點(dian)。氫化(hua)(hua)(hua)丁(ding)(ding)(ding)腈(jing)(jing)(jing)橡(xiang)(xiang)膠(jiao)是(shi)由丁(ding)(ding)(ding)腈(jing)(jing)(jing)橡(xiang)(xiang)膠(jiao)進行特殊加氫處理后而得到的一(yi)種高度飽和(he)的彈性體。氫化(hua)(hua)(hua)丁(ding)(ding)(ding)腈(jing)(jing)(jing)橡(xiang)(xiang)膠(jiao)是(shi)丁(ding)(ding)(ding)腈(jing)(jing)(jing)橡(xiang)(xiang)膠(jiao)經加氫飽和(he)雙鍵(jian)，一(yi)般分完全飽和(he)與(yu)(yu)少量雙鍵(jian)殘留。完全飽和(he)不(bu)能用硫磺(huang)硫化(hua)(hua)(hua)，能用過氧化(hua)(hua)(hua)物(wu)硫化(hua)(hua)(hua)；少量雙鍵(jian)殘留可以用

由于(yu)O型密封圈使用(yong)(yong)簡(jian)便，成(cheng)本與(yu)工(gong)序上也比(bi)較有(you)優勢，因此被廣泛(fan)使用(yong)(yong)，但(dan)對于(yu)選(xuan)(xuan)用(yong)(yong)材(cai)質(zhi)上可能就有(you)很多人就不是(shi)很了解(jie)，而目前丁腈橡(xiang)(xiang)膠與(yu)乙丙膠也是(shi)較常用(yong)(yong)的(de)(de)材(cai)質(zhi)，那么選(xuan)(xuan)用(yong)(yong)哪種材(cai)質(zhi)比(bi)較好呢？O型密封圈廠家東盛(sheng)迪告訴你(ni)！1、一般丁腈膠用(yong)(yong)于(yu)制(zhi)作O型密封圈的(de)(de)比(bi)較多，耐油(you)、耐熱、耐磨(mo)性好，也是(shi)密封制(zhi)品中(zhong)常見(jian)的(de)(de)材(cai)質(zhi)，但(dan)不適合(he)用(yong)(yong)于(yu)磷酸酯系列的(de)(de)液(ye)壓(ya)(ya)油(you)以及(ji)含有(you)極壓(ya)(ya)添(tian)加劑的(de)(de)齒輪油(you)中(zhong)。2、乙丙橡(xiang)(xiang)膠耐氣(qi)候性好，在(zai)空氣(qi)中(zhong)耐老化(hua)，耐油(you)性

目前丁(ding)腈(jing)(jing)橡(xiang)膠(jiao)是(shi)O型密(mi)封(feng)(feng)圈較常用的密(mi)封(feng)(feng)圈之一(yi)，但很(hen)多人對于它的一(yi)些性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)還不是(shi)很(hen)了(le)解，本文主(zhu)要帶大(da)家了(le)解丁(ding)腈(jing)(jing)橡(xiang)膠(jiao)O型密(mi)封(feng)(feng)圈的一(yi)些主(zhu)要性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)。丁(ding)腈(jing)(jing)橡(xiang)膠(jiao)，簡稱NBR，主(zhu)要采用低溫乳液聚合(he)法生產，由(you)丁(ding)二烯與丙(bing)烯腈(jing)(jing)共聚而制得的一(yi)種(zhong)合(he)成橡(xiang)膠(jiao)，它的耐油(you)性(xing)(xing)(xing)(xing)(xing)好(hao)，所以耐油(you)性(xing)(xing)(xing)(xing)(xing)要求較高的O型密(mi)封(feng)(feng)圈一(yi)般采用丁(ding)腈(jing)(jing)橡(xiang)膠(jiao)，其(qi)耐磨性(xing)(xing)(xing)(xing)(xing)較高，耐熱性(xing)(xing)(xing)(xing)(xing)也比(bi)較好(hao)，粘接力(li)強。其(qi)缺點(dian)是(shi)耐低溫性(xing)(xing)(xing)(xing)(xing)差、耐臭(chou)氧性(xing)(xing)(xing)(xing)(xing)差，絕緣(yuan)性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)低劣(lie)，彈性(xing)(xing)(xing)(xing)(xing)稍低。丁(ding)腈(jing)(jing)橡(xiang)膠(jiao)中丙(bing)烯腈(jing)(jing)

之前(qian)有給大家介紹(shao)過氫(qing)化(hua)丁(ding)(ding)腈(jing)(jing)O型密封(feng)圈的(de)主(zhu)要特(te)點，但最近有部分客(ke)戶問到(dao)氫(qing)化(hua)丁(ding)(ding)腈(jing)(jing)橡(xiang)(xiang)膠(jiao)與(yu)丁(ding)(ding)腈(jing)(jing)橡(xiang)(xiang)膠(jiao)的(de)區(qu)別，O型密封(feng)圈廠家東盛(sheng)迪帶大家簡(jian)單了(le)解(jie)一下(xia)。1、首先工藝上丁(ding)(ding)腈(jing)(jing)橡(xiang)(xiang)膠(jiao)是(shi)由丁(ding)(ding)二烯(xi)和丙(bing)烯(xi)腈(jing)(jing)經(jing)乳液聚合法制得的(de)；而氫(qing)化(hua)丁(ding)(ding)腈(jing)(jing)橡(xiang)(xiang)膠(jiao)是(shi)在丁(ding)(ding)腈(jing)(jing)橡(xiang)(xiang)膠(jiao)的(de)基礎上加工而得，由丁(ding)(ding)腈(jing)(jing)橡(xiang)(xiang)膠(jiao)進(jin)行特(te)殊加氫(qing)處理后而得到(dao)的(de)一種高度飽和的(de)彈性(xing)體(ti)。2、耐熱性(xing)，常規丁(ding)(ding)腈(jing)(jing)膠(jiao)使(shi)用溫度為100℃，特(te)殊配方(fang)可以(yi)在120℃下(xia)使(shi)用；而氫(qing)化(hua)丁(ding)(ding)腈(jing)(jing)橡(xiang)(xiang)膠(jiao)常規使(shi)用溫度為

氟橡膠O型密封(feng)圈(quan)是目前比較(jiao)常(chang)用的(de)O型密封(feng)圈(quan)之(zhi)一(yi)，因其良(liang)好的(de)耐(nai)高溫(wen)，耐(nai)腐(fu)蝕性而被(bei)廣(guang)泛使用，那氟橡膠O型密封(feng)圈(quan)一(yi)般可耐(nai)多少度(du)(du)高溫(wen)？硬(ying)度(du)(du)、耐(nai)壓性怎么(me)樣呢？東盛迪(di)告(gao)訴(su)你。耐(nai)高溫(wen)：-25~280℃。有些特殊(shu)的(de)全氟橡膠可用到300℃硬(ying)度(du)(du)：50-85度(du)(du)，一(yi)般常(chang)見硬(ying)度(du)(du)為70度(du)(du)顏色(se)：可調配，一(yi)般黑色(se)為較(jiao)常(chang)見的(de)氟橡膠O型密封(feng)圈(quan)壓力：10-20Mpa適(shi)用范(fan)圍：可用于各(ge)種(zhong)要(yao)汽車，電子，航(hang)天，船(chuan)舶、冶金、機械等(deng)等(deng)要(yao)求精度(du)(du)比

液(ye)壓(ya)密(mi)封(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)(quan)(quan)常(chang)用的(de)(de)自封(feng)(feng)(feng)(feng)(feng)式(shi)壓(ya)緊型液(ye)壓(ya)密(mi)封(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)(quan)(quan)主要是(shi)O型密(mi)封(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)(quan)(quan)、圓形密(mi)封(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)(quan)(quan)和(he)矩形圈(quan)(quan)(quan)(quan)(quan)等(deng)，它們具有結構簡單、易于制造、成本低廉等(deng)優點。在選購維(wei)修(xiu)用液(ye)壓(ya)密(mi)封(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)(quan)(quan)時，很多人都會按樣(yang)品(pin)的(de)(de)尺寸(cun)及顏色去購買，這(zhe)樣(yang)不(bu)一定(ding)能選中合(he)適產品(pin)。廣東密(mi)封(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)(quan)(quan)廠家東盛迪建議采用下(xia)列程序去提(ti)高采購密(mi)封(feng)(feng)(feng)(feng)(feng)件的(de)(de)準確性：1、密(mi)封(feng)(feng)(feng)(feng)(feng)重點例如決定(ding)活動(dong)點是(shi)在內徑的(de)(de)拉桿封(feng)(feng)(feng)(feng)(feng)或活動(dong)點是(shi)在外徑的(de)(de)活塞(sai)封(feng)(feng)(feng)(feng)(feng)等(deng)。2、運動(dong)方向(xiang)先決定(ding)液(ye)壓(ya)密(mi)封(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)(quan)(quan)所(suo)在位置(zhi)的(de)(de)運動(dong)方向(xiang)，例如往(wang)復、