發布時間：2026-04-21 16:35:19 人氣：252878 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
yinweicailiaozaijiezhizhongderongzhangchengdushimifengxingnenghaohuaideguanjianyinsu，suoyizaixuanzeyeyamifengjiancailiaoshi，diyiyaokaolvdeyinsushisuoxuanzedecailiaonengfouhenhaodiyumifengjiezhixiangrong;ruguomifengcailiaohemifengliutixiangrong，huidaozhimifengjianpengzhanghuoshousuo，zaishiyongchuqijiufashengguzhang。mifengjianpengzhangyinqimocazulizengjia，tongshihuishimifengjiangundong。mifengjianshousuohuiyinqiyuyaliangjianshao，pianxinbuchangnenglijiangdi，zhizhixielou。
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
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
suoweijiyaxingmifengjiushizhiyikaomifengcailiaoshouyahouzishenchanshengdehuidanlierdedaomifengnenglideyizhongmifengfangshi。yinweichunxingmifengkenengcunzaiyidingliangdepianxin，suoyixuyaoyikaocailiaodedanxinglaibuchangmifengdejiechuyinglibuzudengwenti。suoyi，cailiaodedanxingduiyumifengxiaoguodehaohuaizhiguanzhongyao;
7、硬度
硬ying度du是shi密mi封feng材cai料liao的de重zhong要yao指zhi標biao，主zhu要yao根gen據ju密mi封feng麵mian的de粗cu糙cao度du來lai確que定ding。當dang密mi封feng麵mian比bi較jiao粗cu糙cao時shi，密mi封feng件jian的de硬ying度du要yao低di，這zhe樣yang才cai能neng保bao證zheng密mi封feng效xiao果guo好hao。密mi封feng壓ya力li比bi較jiao高gao的de部bu位wei，則ze要yao求qiu適shi當dang提ti高gao密mi封feng件jian的de硬ying度du，這zhe樣yang可ke以yi防fang密mi封feng件jian過guo度du變bian形xing，防fang止zhi發fa生sheng密mi封feng件jian被bei擠ji出chu的de現xian象xiang。此ci外wai，材cai料liao硬ying度du有you隨sui使shi用yong溫wen度du升sheng高gao而er下xia降jiang的de特te點dian，並bing且qie硬ying度du高gao，材cai料liao的de耐nai磨mo性xing能neng也ye強qiang。
