平和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

　　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

　　yinweiyibanmifengcailiaodekanglaqiangduhuibansuizhewendudeshenggaoerchengxiajiangqushi，suoyixuanzecailiaoshi
，bixukaolvqishijizuigaoshiyongwendujigaowenqingkuangxiadejixieqiangdu。kanglaqiangduguodi，huichanshengyidingliangdeyinglisongchishenzhiyongjiubianxing，zaochengmifengshixiao。kanglaqiangduguogao，duicailiaodexingnengyaoqiuguoyukeke。suoyi，shijixuanzecailiaoshi，yinggaizonghekaolvcailiaodekanglaqiangdu;

　　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。