發布時間：2026-04-22 07:25:55 人氣：253265 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
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
yinweiyeyamifengjianmifengnenglidetigongzhuyaoshiyikaoqizaimifenggoucaoneizishenchanshengkehuifudeyasuobianxingerhuodede。suoyi，suoxuandemifengcailiaodeyongjiuxingbianxingyaoxiao，danxingyaoqiang，huidanliyaogao。lingwai，cailiaodeyongjiubianxinghaiyuwendubianhuayouyidingguanxi，wenduguogaohuoguodidouhuizengjiayongjiubianxing;
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。
