如何做(zuo)好不銹鋼螺絲鍍層厚度的檢驗

關于不銹鋼螺絲釘(ding)鍍(du)層耐(nai)腐蝕的檢驗方法，主要(yao)是：

鍍(du)層耐腐(fu)蝕(shi)(shi)的檢驗(yan)(yan)(yan)方法有：大氣爆曬試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan);中性(xing)鹽(yan)霧(wu)(wu)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(NSS試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan));醋(cu)酸(suan)鹽(yan)霧(wu)(wu)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(ASS試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan))、銅加速醋(cu)酸(suan)鹽(yan)霧(wu)(wu)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(CASS試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan));以及腐(fu)蝕(shi)(shi)膏腐(fu)蝕(shi)(shi)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)(CORR試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan))和溶(rong)液點滴腐(fu)蝕(shi)(shi)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan);浸(jin)漬試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)、間浸(jin)腐(fu)蝕(shi)(shi)試(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)等等。

另外，如何做好螺絲鍍層厚度的檢驗呢？

一、量(liang)具法:所用量(liang)具有千(qian)分尺、游標卡尺、塞(sai)規(gui)等。

二(er)、磁(ci)性法(fa):磁(ci)性法(fa)測(ce)量(liang)鍍(du)膜層厚度(du),是(shi)用(yong)磁(ci)性測(ce)厚儀(yi)對磁(ci)性基(ji)體上的非(fei)磁(ci)性鍍(du)膜層進行的非(fei)破壞性測(ce)量(liang)。

三(san)、顯微鏡(jing)(jing)法：顯微鏡(jing)(jing)法有(you)稱為金(jin)相法,它是(shi)將經過(guo)浸蝕的緊固件(jian),放在(zai)具有(you)測微目鏡(jing)(jing)的金(jin)相顯微鏡(jing)(jing)上放大,測量斷面上鍍層的厚度(du)。

四、計時液流法

計時液(ye)(ye)流法是用能使鍍(du)(du)(du)層溶解(jie)的溶液(ye)(ye)流注在鍍(du)(du)(du)層的局部表面上,根(gen)據局部鍍(du)(du)(du)層溶解(jie)完畢所需要的時間,來計算鍍(du)(du)(du)層的厚度。還(huan)有鍍(du)(du)(du)層點滴法、陽極溶解(jie)庫侖法等。

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