發布時間：2026-04-21 09:44:57 人氣：252745 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
密mi封feng件jian的de工gong作zuo溫wen度du取qu決jue於yu密mi封feng介jie質zhi的de溫wen度du及ji密mi封feng件jian本ben身shen在zai運yun動dong過guo程cheng中zhong的de溫wen升sheng。溫wen度du直zhi接jie影ying響xiang密mi封feng性xing能neng。過guo高gao的de溫wen度du往wang往wang會hui加jia速su密mi封feng材cai料liao的de老lao化hua，降jiang低di材cai料liao的de彈dan性xing、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
材cai料liao的de耐nai磨mo特te性xing是shi動dong密mi封feng的de重zhong要yao性xing能neng指zhi標biao之zhi一yi。耐nai磨mo性xing好hao，則ze使shi用yong壽shou命ming長chang。材cai料liao耐nai磨mo性xing能neng與yu材cai料liao的de硬ying度du有you著zhe密mi切qie的de聯lian係xi，材cai料liao硬ying度du越yue高gao耐nai磨mo性xing越yue好hao，使shi用yong壽shou命ming越yue長chang;
4、抗拉強度
yinweiyibanmifengcailiaodekanglaqiangduhuibansuizhewendudeshenggaoerchengxiajiangqushi，suoyixuanzecailiaoshi，bixukaolvqishijizuigaoshiyongwendujigaowenqingkuangxiadejixieqiangdu。kanglaqiangduguodi，huichanshengyidingliangdeyinglisongchishenzhiyongjiubianxing，zaochengmifengshixiao。kanglaqiangduguogao，duicailiaodexingnengyaoqiuguoyukeke。suoyi，shijixuanzecailiaoshi，yinggaizonghekaolvcailiaodekanglaqiangdu;
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
suoweijiyaxingmifengjiushizhiyikaomifengcailiaoshouyahouzishenchanshengdehuidanlierdedaomifengnenglideyizhongmifengfangshi。yinweichunxingmifengkenengcunzaiyidingliangdepianxin，suoyixuyaoyikaocailiaodedanxinglaibuchangmifengdejiechuyinglibuzudengwenti。suoyi，cailiaodedanxingduiyumifengxiaoguodehaohuaizhiguanzhongyao;
7、硬度
yingdushimifengcailiaodezhongyaozhibiao，zhuyaogenjumifengmiandecucaodulaiqueding。dangmifengmianbijiaocucaoshi，mifengjiandeyingduyaodi，zheyangcainengbaozhengmifengxiaoguohao。mifengyalibijiaogaodebuwei，zeyaoqiushidangtigaomifengjiandeyingdu，zheyangkeyifangmifengjianguodubianxing，fangzhifashengmifengjianbeijichudexianxiang。ciwai，cailiaoyingduyousuishiyongwendushenggaoerxiajiangdetedian，bingqieyingdugao，cailiaodenaimoxingnengyeqiang。
