樂安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

　　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

　　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。