發布時間：2026-04-22 03:46:51 人氣：253181 來源：
液壓密封技術的好壞會影響液壓支架的工作質量和壽命。那麼液壓密封件產品應該具備哪些性能呢?
1、耐溫性能
mifengjiandegongzuowenduqujueyumifengjiezhidewendujimifengjianbenshenzaiyundongguochengzhongdewensheng。wenduzhijieyingxiangmifengxingneng。guogaodewenduwangwanghuijiasumifengcailiaodelaohua，jiangdicailiaodedanxing、硬度等性能，發生材料硬化;溫度過低也會導致材料加速硬化，失去彈性性能，降低了材料的密封效果。綜上所述，應采用有一定使用溫度範圍的材料。
2、耐介質性
因yin為wei材cai料liao在zai介jie質zhi中zhong的de溶rong脹zhang程cheng度du是shi密mi封feng性xing能neng好hao壞huai的de關guan鍵jian因yin素su，所suo以yi在zai選xuan擇ze液ye壓ya密mi封feng件jian材cai料liao時shi，第di一yi要yao考kao慮lv的de因yin素su是shi所suo選xuan擇ze的de材cai料liao能neng否fou很hen好hao地di與yu密mi封feng介jie質zhi相xiang容rong;如ru果guo密mi封feng材cai料liao和he密mi封feng流liu體ti相xiang容rong，會hui導dao致zhi密mi封feng件jian膨peng脹zhang或huo收shou縮suo，在zai使shi用yong初chu期qi就jiu發fa生sheng故gu障zhang。密mi封feng件jian膨peng脹zhang引yin起qi摩mo擦ca阻zu力li增zeng加jia，同tong時shi會hui使shi密mi封feng件jian滾gun動dong。密mi封feng件jian收shou縮suo會hui引yin起qi預yu壓ya量liang減jian少shao，偏pian心xin補bu償chang能neng力li降jiang低di，直zhi至zhi泄xie漏lou。
3、耐磨性能
cailiaodenaimotexingshidongmifengdezhongyaoxingnengzhibiaozhiyi。naimoxinghao，zeshiyongshoumingchang。cailiaonaimoxingnengyucailiaodeyingduyouzhemiqiedelianxi，cailiaoyingduyuegaonaimoxingyuehao，shiyongshoumingyuechang;
4、抗拉強度
因(yin)為(wei)一(yi)般(ban)密(mi)封(feng)材(cai)料(liao)的(de)抗(kang)拉(la)強(qiang)度(du)會(hui)伴(ban)隨(sui)著(zhe)溫(wen)度(du)的(de)升(sheng)高(gao)而(er)成(cheng)下(xia)降(jiang)趨(qu)勢(shi)，所(suo)以(yi)選(xuan)擇(ze)材(cai)料(liao)時(shi)，必(bi)須(xu)考(kao)慮(lv)其(qi)實(shi)際(ji)最(zui)高(gao)使(shi)用(yong)溫(wen)度(du)及(ji)高(gao)溫(wen)情(qing)況(kuang)下(xia)的(de)機(ji)械(xie)強(qiang)度(du)。抗(kang)拉(la)強(qiang)度(du)過(guo)低(di)，會(hui)產(chan)生(sheng)一(yi)定(ding)量(liang)的(de)應(ying)力(li)鬆(song)弛(chi)甚(shen)至(zhi)永(yong)久(jiu)變(bian)形(xing)，造(zao)成(cheng)密(mi)封(feng)失(shi)效(xiao)。抗(kang)拉(la)強(qiang)度(du)過(guo)高(gao)，對(dui)材(cai)料(liao)的(de)性(xing)能(neng)要(yao)求(qiu)過(guo)於(yu)苛(ke)刻(ke)。所(suo)以(yi)，實(shi)際(ji)選(xuan)擇(ze)材(cai)料(liao)時(shi)，應(ying)該(gai)綜(zong)合(he)考(kao)慮(lv)材(cai)料(liao)的(de)抗(kang)拉(la)強(qiang)度(du);
5、永久變形
因yin為wei液ye壓ya密mi封feng件jian密mi封feng能neng力li的de提ti供gong主zhu要yao是shi依yi靠kao其qi在zai密mi封feng溝gou槽cao內nei自zi身shen產chan生sheng可ke恢hui複fu的de壓ya縮suo變bian形xing而er獲huo得de的de。所suo以yi，所suo選xuan的de密mi封feng材cai料liao的de永yong久jiu性xing變bian形xing要yao小xiao，彈dan性xing要yao強qiang，回hui彈dan力li要yao高gao。另ling外wai，材cai料liao的de永yong久jiu變bian形xing還hai與yu溫wen度du變bian化hua有you一yi定ding關guan係xi，溫wen度du過guo高gao或huo過guo低di都dou會hui增zeng加jia永yong久jiu變bian形xing;
6、彈性
所suo謂wei擠ji壓ya型xing密mi封feng就jiu是shi指zhi依yi靠kao密mi封feng材cai料liao受shou壓ya後hou自zi身shen產chan生sheng的de回hui彈dan力li而er得de到dao密mi封feng能neng力li的de一yi種zhong密mi封feng方fang式shi。因yin為wei唇chun形xing密mi封feng可ke能neng存cun在zai一yi定ding量liang的de偏pian心xin，所suo以yi需xu要yao依yi靠kao材cai料liao的de彈dan性xing來lai補bu償chang密mi封feng的de接jie觸chu應ying力li不bu足zu等deng問wen題ti。所suo以yi，材cai料liao的de彈dan性xing對dui於yu密mi封feng效xiao果guo的de好hao壞huai至zhi關guan重zhong要yao;
7、硬度
yingdushimifengcailiaodezhongyaozhibiao，zhuyaogenjumifengmiandecucaodulaiqueding。dangmifengmianbijiaocucaoshi，mifengjiandeyingduyaodi，zheyangcainengbaozhengmifengxiaoguohao。mifengyalibijiaogaodebuwei，zeyaoqiushidangtigaomifengjiandeyingdu，zheyangkeyifangmifengjianguodubianxing，fangzhifashengmifengjianbeijichudexianxiang。ciwai，cailiaoyingduyousuishiyongwendushenggaoerxiajiangdetedian，bingqieyingdugao，cailiaodenaimoxingnengyeqiang。
