銅片腐蝕測定儀注意事項

(1)金屬銅片的純度和大(da)小都必須符合(he)方法的要求。試驗(yan)所用的溶劑經(jing)銅片腐(fu)蝕(shi)試驗(yan)合(he)格后方可使用。

(2)銅(tong)片(pian)(pian)(pian)(pian)表(biao)(biao)面必須嚴格(ge)進行表(biao)(biao)面處理(li)。磨光材料要(yao)符合(he)要(yao)求，試(shi)(shi)(shi)(shi)(shi)片(pian)(pian)(pian)(pian)要(yao)均勻(yun)地磨光試(shi)(shi)(shi)(shi)(shi)片(pian)(pian)(pian)(pian)的各個(ge)表(biao)(biao)面。銅(tong)試(shi)(shi)(shi)(shi)(shi)片(pian)(pian)(pian)(pian)處理(li)時要(yao)用(yong)(yong)專(zhuan)用(yong)(yong)夾真，防正用(yong)(yong)手直接接觸。銅(tong)試(shi)(shi)(shi)(shi)(shi)片(pian)(pian)(pian)(pian)放入玻璃試(shi)(shi)(shi)(shi)(shi)管(guan)時刻將(jiang)試(shi)(shi)(shi)(shi)(shi)管(guan)適當傾斜，小心地將(jiang)試(shi)(shi)(shi)(shi)(shi)片(pian)(pian)(pian)(pian)滑(hua)入，以避(bi)免打破(po)試(shi)(shi)(shi)(shi)(shi)管(guan)。

(3)試驗(yan)時(shi)溫度(du)應恒定在士1℃地范圍(wei)內，試驗(yan)時(shi)間要控制(zhi)在士5分鐘內。

(4)試(shi)驗(yan)(yan)結(jie)束后，要(yao)用(yong)不銹鋼鑷子取出(chu)銅片，浸入(ru)洗(xi)滌溶劑(ji)，洗(xi)去上面的試(shi)樣，再用(yong)定量濾紙吸干，然后和標準色板(ban)對照，判(pan)斷試(shi)驗(yan)(yan)結(jie)果。

(5)銅片和腐蝕標準色板(ban)進行比(bi)較時，要對(dui)光(guang)線成45°角折射的方法(fa)那持進行觀察。