鹽霧腐蝕(shi)試驗箱采用含鹽量的(de)(de)有機溶(rong)劑，或(huo)含鹽量的(de)(de)酸(suan)堿(jian)有機溶(rong)劑，在不可避免的(de)(de)溫度和相對(dui)環境濕度的(de)(de)自然環境下，加速原材料或(huo)產品的(de)(de)腐蝕(shi)，從而在不可避免的(de)(de)瞬間范圍內再(zai)現原材料或(huo)產品的(de)(de)損傷程度。
那(nei)么鹽(yan)霧腐蝕試驗箱的腐蝕原(yuan)理是什么呢？
鹽(yan)(yan)霧(wu)(wu)腐(fu)蝕(shi)(shi)(shi)試(shi)驗(yan)箱中(zhong)(zhong)(zhong)金(jin)(jin)(jin)(jin)屬(shu)(shu)材(cai)(cai)料(liao)(liao)(liao)(liao)的(de)(de)(de)腐(fu)蝕(shi)(shi)(shi)主要是(shi)由(you)于導電(dian)(dian)(dian)(dian)鹽(yan)(yan)類有(you)(you)機(ji)溶(rong)劑進(jin)(jin)入金(jin)(jin)(jin)(jin)屬(shu)(shu)材(cai)(cai)料(liao)(liao)(liao)(liao)中(zhong)(zhong)(zhong)發生(sheng)光電(dian)(dian)(dian)(dian)催(cui)化(hua)(hua)反應(ying)，形(xing)成(cheng)“低電(dian)(dian)(dian)(dian)位(wei)差金(jin)(jin)(jin)(jin)屬(shu)(shu)材(cai)(cai)料(liao)(liao)(liao)(liao)-電(dian)(dian)(dian)(dian)解(jie)質(zhi)(zhi)(zhi)溶(rong)液(ye)有(you)(you)機(ji)溶(rong)劑-高電(dian)(dian)(dian)(dian)位(wei)殘留物”的(de)(de)(de)微型(xing)可充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池管理系統，患(huan)病的(de)(de)(de)電(dian)(dian)(dian)(dian)子器件(jian)被運輸，作(zuo)為(wei)陽(yang)極化(hua)(hua)金(jin)(jin)(jin)(jin)屬(shu)(shu)材(cai)(cai)料(liao)(liao)(liao)(liao)顯示熔(rong)化(hua)(hua)，形(xing)成(cheng)新的(de)(de)(de)化(hua)(hua)學物質(zhi)(zhi)(zhi)，即腐(fu)蝕(shi)(shi)(shi)劑。金(jin)(jin)(jin)(jin)屬(shu)(shu)材(cai)(cai)料(liao)(liao)(liao)(liao)維(wei)(wei)護層和有(you)(you)機(ji)化(hua)(hua)學原(yuan)料(liao)(liao)(liao)(liao)維(wei)(wei)護層是(shi)相同的(de)(de)(de)。當作(zuo)為(wei)電(dian)(dian)(dian)(dian)解(jie)質(zhi)(zhi)(zhi)溶(rong)液(ye)的(de)(de)(de)鹽(yan)(yan)類有(you)(you)機(ji)溶(rong)劑進(jin)(jin)入內部時，會形(xing)成(cheng)以金(jin)(jin)(jin)(jin)屬(shu)(shu)材(cai)(cai)料(liao)(liao)(liao)(liao)為(wei)電(dian)(dian)(dian)(dian)層面，以金(jin)(jin)(jin)(jin)屬(shu)(shu)材(cai)(cai)料(liao)(liao)(liao)(liao)維(wei)(wei)持(chi)層或有(you)(you)機(ji)化(hua)(hua)學原(yuan)料(liao)(liao)(liao)(liao)為(wei)另一電(dian)(dian)(dian)(dian)層面的(de)(de)(de)微型(xing)可充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池。鹽(yan)(yan)霧(wu)(wu)腐(fu)蝕(shi)(shi)(shi)試(shi)驗(yan)箱在腐(fu)蝕(shi)(shi)(shi)破壞過程中(zhong)(zhong)(zhong)，主要的(de)(de)(de)實(shi)際作(zuo)用(yong)是(shi)氯離子含量。它(ta)具(ju)有(you)(you)很(hen)強的(de)(de)(de)滲透(tou)作(zuo)用(yong)，快速(su)簡單地穿透(tou)金(jin)(jin)(jin)(jin)屬(shu)(shu)材(cai)(cai)料(liao)(liao)(liao)(liao)的(de)(de)(de)空氣(qi)氧(yang)化(hua)(hua)層，進(jin)(jin)入金(jin)(jin)(jin)(jin)屬(shu)(shu)材(cai)(cai)料(liao)(liao)(liao)(liao)，破壞金(jin)(jin)(jin)(jin)屬(shu)(shu)材(cai)(cai)料(liao)(liao)(liao)(liao)的(de)(de)(de)鈍化(hua)(hua)。鹽(yan)(yan)霧(wu)(wu)腐(fu)蝕(shi)(shi)(shi)試(shi)驗(yan)箱中(zhong)(zhong)(zhong)的(de)(de)(de)氯離子水合能很(hen)小，簡單吸附在金(jin)(jin)(jin)(jin)屬(shu)(shu)表(biao)面，取代維(wei)(wei)修金(jin)(jin)(jin)(jin)屬(shu)(shu)氧(yang)化(hua)(hua)層中(zhong)(zhong)(zhong)的(de)(de)(de)氧(yang)，對金(jin)(jin)(jin)(jin)屬(shu)(shu)造成(cheng)損傷。除了氯離子，鹽(yan)(yan)霧(wu)(wu)腐(fu)蝕(shi)(shi)(shi)試(shi)驗(yan)箱還(huan)受(shou)到溶(rong)于鹽(yan)(yan)溶(rong)劑中(zhong)(zhong)(zhong)的(de)(de)(de)氧(yang)氣(qi)（基本(ben)上溶(rong)于樣品外(wai)表(biao)面的(de)(de)(de)鹽(yan)(yan)液(ye)膜(mo)）的(de)(de)(de)影響(xiang)。
結(jie)構(gou)特點：
1.內(nei)外膽均采用環氧玻(bo)璃鋼整體(ti)模(mo)壓(ya)成型，具有重量輕、耐腐蝕、強(qiang)度高、無滲漏、表面平(ping)整、光滑易(yi)清洗等特點；
2.水密(mi)封形式使鹽霧(wu)不致(zhi)外溢，夾套風(feng)道加熱，使工作室升溫快(kuai)，溫度(du)分布(bu)均勻；
3.鹽霧腐蝕試驗箱頂蓋設計成110~112℃頂角(jiao)，不使箱內的冷凝聚水直接滴落在試品上；
4.噴霧(wu)方式為(wei)塔(ta)式噴霧(wu)，噴霧(wu)塔(ta)放(fang)置于工(gong)作室的底面(mian)中部。噴嘴的材料(liao)為(wei)石英玻璃(li)燒制(zhi)而成(cheng)，噴出的霧(wu)料(liao)細小(xiao)，鹽霧(wu)呈自(zi)然沉降分布均勻；
5.設(she)(she)備的(de)控制系(xi)統放置在箱體的(de)右(you)上方，用戶操作方便，面板(ban)上設(she)(she)置有(you)電(dian)源(yuan)開關(guan)(guan)、排(pai)霧(wu)開關(guan)(guan)、噴霧(wu)轉換開關(guan)(guan)、兩只PID自整定(ding)數顯儀表、以及設(she)(she)備運轉時(shi)間定(ding)時(shi)器(qi)和間隙噴霧(wu)定(ding)時(shi)器(qi)，在箱體的(de)線路(lu)板(ban)上還特設(she)(she)超溫保護器(qi)。
