雞澤液壓密封件材料性能要求

　　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

　　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

　　suoweijiyaxingmifengjiushizhiyikaomifengcailiaoshouyahouzishenchanshengdehuidanlierdedaomifengnenglideyizhongmifengfangshi。yinweichunxingmifengkenengcunzaiyidingliangdepianxin，suoyixuyaoyikaocailiaodedanxinglaibuchangmifengdejiechuyinglibuzudengwenti。suoyi，cailiaodedanxingduiyumifengxiaoguodehaohuaizhiguanzhongyao;

　　7、硬度

　　yingdushimifengcailiaodezhongyaozhibiao，zhuyaogenjumifengmiandecucaodulaiqueding。dangmifengmianbijiaocucaoshi，mifengjiandeyingduyaodi
，zheyangcainengbaozhengmifengxiaoguohao。mifengyalibijiaogaodebuwei
，zeyaoqiushidangtigaomifengjiandeyingdu，zheyangkeyifangmifengjianguodubianxing，fangzhifashengmifengjianbeijichudexianxiang。ciwai，cailiaoyingduyousuishiyongwendushenggaoerxiajiangdetedian，bingqieyingdugao，cailiaodenaimoxingnengyeqiang。