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高溫高壓電化學靜態腐蝕反應釜

簡要描述:

高溫高壓(ya)電(dian)化學(xue)靜態腐蝕反應(ying)釜(fu),適用于(yu),高溫高壓(ya),電(dian)化學(xue),動態或靜態的(de)反應(ying)體系中,對(dui)試樣(yang)的(de)腐蝕測試,多用于(yu)金屬、橡膠、和新型的(de)材料體系。

詳(xiang)細介紹(shao)

高溫高壓電化學靜態腐蝕反應(ying)釜,適用于(yu),高(gao)溫(wen)高(gao)壓,電化(hua)學,動態(tai)(tai)或靜態(tai)(tai)的(de)反應體系(xi)中,對試(shi)樣的(de)腐蝕測試(shi),多用于(yu)金屬、橡膠、和新型的(de)材料體系(xi)。由高(gao)溫(wen)高(gao)壓反應釜(fu)、電化(hua)學工(gong)作站(zhan)、三電極(ji)及控制(zhi)系(xi)統組成,在實驗過程中,有實驗會加入光化(hua)化(hua)進行綜合測試(shi)。

三電極為:工作電極、參比電極及對電。工作電極(Work Electrode,WE),又稱為研究電極,是指所研究的反應在該電極上發生,也就是響應的物質在這個電極上發生反應。一般而言,工作電極的材料既可以是固體,又可以是液體。常用的工作電極材料有:玻碳電極、鉑(Pt)、金(Au)、銀(Ag)、鉛(Pb)、導電玻璃(ITO)、汞(Hg)等。對電極(Counter Electrode、CE)又稱為輔助電極。輔助電極和工作電極組成回路,使工作電極上電流暢通,以保證所研究的反應在工作電極上發生。

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當(dang)工作電(dian)極上(shang)發生氧化或還原(yuan)反應時,對電(dian)極上(shang)可(ke)以安排為(wei)氣體的(de)(de)析出反應,或工作電(dian)極反應的(de)(de)逆反應,從(cong)而(er)使得電(dian)解液的(de)(de)組(zu)成(cheng)成(cheng)分不(bu)變。對電(dian)極的(de)(de)性(xing)能一(yi)般不(bu)影(ying)響(xiang)工作電(dian)極上(shang)的(de)(de)反應。

參比(bi)電(dian)極(Reference Electrode,RE)的電(dian)位不受電(dian)解液(ye)成分變化(hua)的影響(xiang),具有(you)恒定的數值

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)化(hua)學(xue)(xue)工(gong)(gong)作(zuo)站,用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)化(hua)學(xue)(xue)測(ce)量(liang)(liang)(liang)(liang)系(xi)(xi)統。含快(kuai)速(su)(su)數(shu)字信(xin)(xin)號(hao)發生(sheng)器(qi)(qi)(qi)(qi),用(yong)于(yu)高(gao)頻交流(liu)(liu)(liu)阻(zu)抗(kang)測(ce)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)直接數(shu)字信(xin)(xin)號(hao)合(he)成(cheng)器(qi)(qi)(qi)(qi),雙(shuang)通(tong)(tong)道(dao)高(gao)速(su)(su)數(shu)據采(cai)集系(xi)(xi)統,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)信(xin)(xin)號(hao)濾波器(qi)(qi)(qi)(qi),多級(ji)信(xin)(xin)號(hao)增(zeng)益,iR降補償電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu),以及恒(heng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位儀/恒(heng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)儀(660E)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位范圍(wei)為(wei)±10V,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)范圍(wei)為(wei)±250mA。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)測(ce)量(liang)(liang)(liang)(liang)下限(xian)低于(yu)10pA。可(ke)(ke)(ke)(ke)直接用(yong)于(yu)超(chao)微(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)上的(de)(de)(de)(de)(de)(de)(de)穩態電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)測(ce)量(liang)(liang)(liang)(liang)。如(ru)果與CHI200B微(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)放(fang)大(da)(da)器(qi)(qi)(qi)(qi)及屏蔽箱連接,可(ke)(ke)(ke)(ke)測(ce)量(liang)(liang)(liang)(liang)1pA或更(geng)低的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。如(ru)果與CHI680C大(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)放(fang)大(da)(da)器(qi)(qi)(qi)(qi)連接,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)范圍(wei)可(ke)(ke)(ke)(ke)拓寬(kuan)為(wei)±2A。CHI600E系(xi)(xi)列也(ye)是十(shi)分快(kuai)速(su)(su)的(de)(de)(de)(de)(de)(de)(de)儀器(qi)(qi)(qi)(qi)。信(xin)(xin)號(hao)發生(sheng)器(qi)(qi)(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)更(geng)新速(su)(su)率(lv)(lv)為(wei)10MHz,數(shu)據采(cai)集采(cai)用(yong)兩個同(tong)(tong)步(bu)16位高(gao)分辨低噪聲(sheng)的(de)(de)(de)(de)(de)(de)(de)模(mo)數(shu)轉換器(qi)(qi)(qi)(qi),雙(shuang)通(tong)(tong)道(dao)同(tong)(tong)時采(cai)樣(yang)的(de)(de)(de)(de)(de)(de)(de)速(su)(su)率(lv)(lv)為(wei)1MHz。雙(shuang)通(tong)(tong)道(dao)同(tong)(tong)步(bu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位采(cai)樣(yang)可(ke)(ke)(ke)(ke)加快(kuai)阻(zu)抗(kang)測(ce)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)速(su)(su)度(du)。某些實驗方法(fa)的(de)(de)(de)(de)(de)(de)(de)時間尺度(du)可(ke)(ke)(ke)(ke)達(da)(da)(da)十(shi)個數(shu)量(liang)(liang)(liang)(liang)級(ji),動態范圍(wei)極(ji)為(wei)寬(kuan)廣。循環伏(fu)安法(fa)的(de)(de)(de)(de)(de)(de)(de)掃(sao)描速(su)(su)度(du)為(wei)1000V/s時,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位增(zeng)量(liang)(liang)(liang)(liang)僅0.1mV,當掃(sao)描速(su)(su)度(du)為(wei)5000V/s時,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)位增(zeng)量(liang)(liang)(liang)(liang)為(wei)1mV。又如(ru)交流(liu)(liu)(liu)阻(zu)抗(kang)的(de)(de)(de)(de)(de)(de)(de)測(ce)量(liang)(liang)(liang)(liang)頻率(lv)(lv)可(ke)(ke)(ke)(ke)達(da)(da)(da)1MHz,交流(liu)(liu)(liu)伏(fu)安法(fa)的(de)(de)(de)(de)(de)(de)(de)頻率(lv)(lv)可(ke)(ke)(ke)(ke)達(da)(da)(da)10KHz。儀器(qi)(qi)(qi)(qi)可(ke)(ke)(ke)(ke)工(gong)(gong)作(zuo)于(yu)二,三,或四(si)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)(de)(de)(de)(de)方式(shi)。四(si)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)可(ke)(ke)(ke)(ke)用(yong)于(yu)液(ye)/液(ye)界面電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)化(hua)學(xue)(xue)測(ce)量(liang)(liang)(liang)(liang),對于(yu)大(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)或低阻(zu)抗(kang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)解池(例如(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池)也(ye)十(shi)分重要,可(ke)(ke)(ke)(ke)消除由于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜和接觸電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)引起的(de)(de)(de)(de)(de)(de)(de)測(ce)量(liang)(liang)(liang)(liang)誤差。儀器(qi)(qi)(qi)(qi)還(huan)有外部信(xin)(xin)號(hao)輸入通(tong)(tong)道(dao),同(tong)(tong)步(bu)16位高(gao)分辨采(cai)樣(yang)的(de)(de)(de)(de)(de)(de)(de)速(su)(su)率(lv)(lv)為(wei)1MHz。可(ke)(ke)(ke)(ke)在(zai)記錄電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)化(hua)學(xue)(xue)信(xin)(xin)號(hao)的(de)(de)(de)(de)(de)(de)(de)同(tong)(tong)時記錄外部輸入的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓信(xin)(xin)號(hao),例如(ru)光(guang)譜信(xin)(xin)號(hao)等。這(zhe)對光(guang)譜電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)化(hua)學(xue)(xue)等實驗極(ji)為(wei)方便。

世紀(ji)森朗高溫(wen)(wen)高壓(ya)掛片動態腐蝕(shi)反應釜,可對鋼鐵(tie)制成的(de)(de)(de)(de)石油鉆桿進(jin)行使用(yong)前的(de)(de)(de)(de)測(ce)試,查看利用(yong)該材料(liao)制成的(de)(de)(de)(de)合金鋼能否低(di)于高溫(wen)(wen)高壓(ya)下(xia)的(de)(de)(de)(de)深層井下(xia)介質(zhi)的(de)(de)(de)(de)腐蝕(shi),若造成腐蝕(shi)則查看腐蝕(shi)帶來的(de)(de)(de)(de)損壞是否對鉆桿的(de)(de)(de)(de)工(gong)作造成影響。

 

 

 



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