鷹手營子礦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

　　yinweicailiaozaijiezhizhongderongzhangchengdushimifengxingnenghaohuaideguanjianyinsu，suoyizaixuanzeyeyamifengjiancailiaoshi，diyiyaokaolvdeyinsushisuoxuanzedecailiaonengfouhenhaodiyumifengjiezhixiangrong;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

　　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。