鹽霧耐腐蝕試驗分為兩大類

鹽霧(wu)試驗(yan)是一(yi)種主要利用鹽霧(wu)試驗(yan)設備所(suo)創(chuang)造的人工模(mo)擬鹽霧(wu)環(huan)境條件來(lai)考核產品(pin)或金屬材(cai)料耐腐蝕性能(neng)的環(huan)境試驗(yan)。它分為(wei)二(er)大類(lei)，一(yi)類(lei)為(wei)天(tian)然環(huan)境暴露試驗(yan)，另(ling)一(yi)類(lei)為(wei)人工加速模(mo)擬鹽霧(wu)環(huan)境試驗(yan)。 

人工(gong)(gong)模擬鹽(yan)(yan)(yan)(yan)(yan)霧(wu)環境試(shi)驗(yan)(yan)(yan)是利用一種具(ju)有(you)一定容積空間(jian)的(de)(de)試(shi)驗(yan)(yan)(yan)設(she)備(bei)——鹽(yan)(yan)(yan)(yan)(yan)霧(wu)試(shi)驗(yan)(yan)(yan)箱，在其(qi)容積空間(jian)內用人工(gong)(gong)的(de)(de)方法，造成鹽(yan)(yan)(yan)(yan)(yan)霧(wu)環境來(lai)對(dui)產品(pin)的(de)(de)耐鹽(yan)(yan)(yan)(yan)(yan)霧(wu)腐蝕(shi)性能質量進(jin)(jin)行考(kao)核。 它與(yu)天然環境相比，其(qi)鹽(yan)(yan)(yan)(yan)(yan)霧(wu)環境的(de)(de)氯(lv)化物的(de)(de)鹽(yan)(yan)(yan)(yan)(yan)濃度，可以是一般天然環境鹽(yan)(yan)(yan)(yan)(yan)霧(wu)含量的(de)(de)幾倍或幾十倍，使腐蝕(shi)速度大(da)大(da)提(ti)高，對(dui)產品(pin)進(jin)(jin)行鹽(yan)(yan)(yan)(yan)(yan)霧(wu)試(shi)驗(yan)(yan)(yan)，得出結果的(de)(de)時間(jian)也大(da)大(da)縮短。 如(ru)在天然暴露環境下(xia)(xia)對(dui)某產品(pin)樣品(pin)進(jin)(jin)行試(shi)驗(yan)(yan)(yan)，待其(qi)腐蝕(shi)可能要1年，而在人工(gong)(gong)模擬鹽(yan)(yan)(yan)(yan)(yan)霧(wu)環境條件下(xia)(xia)試(shi)驗(yan)(yan)(yan)，只要24小時，即(ji)可得到相似的(de)(de)結果。 人工(gong)(gong)模擬鹽(yan)(yan)(yan)(yan)(yan)霧(wu)試(shi)驗(yan)(yan)(yan)又包括中(zhong)性鹽(yan)(yan)(yan)(yan)(yan)霧(wu)試(shi)驗(yan)(yan)(yan)、醋(cu)酸(suan)鹽(yan)(yan)(yan)(yan)(yan)霧(wu)試(shi)驗(yan)(yan)(yan)、銅鹽(yan)(yan)(yan)(yan)(yan)加速醋(cu)酸(suan)鹽(yan)(yan)(yan)(yan)(yan)霧(wu)試(shi)驗(yan)(yan)(yan)、交(jiao)變鹽(yan)(yan)(yan)(yan)(yan)霧(wu)試(shi)驗(yan)(yan)(yan)。