發布時間:2026-04-23 05:32:04 人氣:310735 來源:
碳化矽材料的優點是:優異的機械性能、耐腐蝕性和良好的摩擦學性能,因此它已在密封材料的許多領域得到開發和應用。本文編輯整理了碳化矽的具體性,以滿足不同工況下阿合奇機械密封產品應用
1、碳化矽在高密封介質壓力阿合奇機械密封中的應用
阿合奇機械密封zaigaoyaxiagongzuoshi,mifengmianxuyaochengshoujiaodadezaihe,zhejiuyaoqiumifengcailiaobixujuyoujiaogaodeqiangduhegangdu。fouze,mifengmianhuiyinyalierbianxing,daozhixielouhuoxunsumosun,daozhi阿合奇機械密封失效。碳化矽是一種高強度、高剛度、高彈性模量的材料。在高壓下不容易變形。同時,SiC的抗壓強度很高,如在大氣壓下燒結的SiC的抗彎強度為410MPa,而抗壓強度大於2800MPa,是抗彎強度的7倍。完全能承受高端應力,滿足使用要求。
2、碳化矽在高速阿合奇機械密封中的應用
zaigaosugongzuozhuangtaixia,youyumocafudexiansudujiaogao,mocafuderemosunhezhendongjiangshigongzuoguochengzhongmianlindeyigezhongyaowenti。yinci,zuoweiyizhongxuanzhuanmifengcailiao,yaoqiuqijuyougaoqiangduhedimidu。zheyang,gaosuyunzhuanshixuanzhuanhuanchanshengdelixinlijiaoxiao,eryouxuanzhuanhuanyinqidezhendonghepianhangyejiaoxiao,yibaochimifengmiandewendingpeihe。yingzhihejindemidubiyongyumifengdeyingzhihejinxiaodeduo,danxingmolianggao,baozhenglegaosutiaojianxiayingzhihejinmifengmianbuyibianxinghezhendong,baochileduanmiandewendinghepeihe。youyutanhuaguimidudi、熱性能好、摩擦係數低,在高速旋轉密封材料中具有明顯的優勢,因此廣泛應用於阿合奇機械密封硬環中。
3、SiC在高溫阿合奇機械密封中的應用
高溫容易引起摩擦副材料性能的變化,使密封麵變形,硬度降低,導致阿合奇機械密封壽命下降。因此,高溫密封材料的熱變形、gaowenqiangduhenaimoxingshixuanzemifengcailiaoshiyingkaolvdeguanjianyinsu。tanhuaguizaigaowenxiajuyouhengaodeqiangdu,liru,reyatanhuaguidekangwanqiangduyuchangwenjibenxiangtong,yincibuhuichuxianleisiyujinshudegaowenrubianxianxiang,erqieyouyujuyouzirunhuaxing。zaitanhuaguitaocizhong,liangduanzhuandongshibuhuifashengzhanzhemosun,yincikeyizaigaowentiaojianxiashiyongtanhuaguijinxing阿合奇機械密封。
腐蝕磨損是腐蝕介質中阿合奇機械密封mocacailiaoshixiaodezhuyaoxingshi。zhezhongfushizuoyonghenqiang,huizhijiehuoxunsuyinqimifengxingnengdebianhua。yinci,yinggenjumifengjiezhidetexingxuanzemifengcailiao。tanhuaguihuaxuewendingxinghao,naifushixingqiang,keyongyugezhongfushixingsuanjianjiezhi(部分耐腐蝕性見表)。

5、SiC在固體顆粒機械密封中的應用
在機械密封的實際應用中,密封流體中往往含有固體顆粒,如待處理的廢水、某些海域的海水和一些容易結晶的物質。
6、碳化矽在幹摩擦機械密封中的應用
通(tong)常(chang),機(ji)械(xie)密(mi)封(feng)不(bu)希(xi)望(wang)出(chu)現(xian)幹(gan)摩(mo)擦(ca),但(dan)在(zai)某(mou)些(xie)情(qing)況(kuang)下(xia)不(bu)可(ke)能(neng)完(wan)全(quan)避(bi)免(mian)幹(gan)摩(mo)擦(ca)。例(li)如(ru),當(dang)密(mi)封(feng)件(jian)的(de)微(wei)凸(tu)體(ti)溫(wen)度(du)開(kai)始(shi)接(jie)觸(chu)或(huo)由(you)於(yu)其(qi)他(ta)原(yuan)因(yin)時(shi),流(liu)體(ti)力(li)的(de)增(zeng)加(jia)和(he)機(ji)械(xie)密(mi)封(feng)件(jian)上(shang)的(de)間(jian)隙(xi)的(de)減(jian)小(xiao)將(jiang)導(dao)致(zhi)幹(gan)摩(mo)擦(ca);erqie,daduoshumifengjianshizhimide。banganmocahuoganmocayekenengzaidakaihuotingzhimifengshiduanzanfasheng。youyumifengmianganmocahuizengjiamocaxishu,jiajumosun,daozhimifengquanshaosunhuoreyinglikailie,daozhixielou。yinci,yaoqiumifengcailiaojuyounaigaowenhelianghaodemocaxuexingneng。tanhuaguicailiaojuyouzhezhongtexing。reyatanhuaguidexingnengzai1600℃時shi不bu會hui衰shuai減jian,在zai密mi封feng麵mian旋xuan轉zhuan摩mo擦ca過guo程cheng中zhong,在zai較jiao低di的de溫wen度du下xia,碳tan化hua矽gui中zhong的de石shi墨mo微wei粒li可ke以yi起qi到dao潤run滑hua作zuo用yong。即ji使shi在zai特te殊shu的de工gong作zuo條tiao件jian下xia,碳tan化hua矽gui也ye能neng完wan全quan滿man足zu工gong作zuo的de需xu要yao。