麻湧鎮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

　　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。