炮膛残留铜垢清除的研究

应用化学热力学理论对清除铜垢机理进行了论证：铜能被强氧化剂Na2S2O3氧化成铜离子，铜离子又与NH3生成稳定的Cu(NHs)3]4^2 络离子；缓蚀剂(NaNO2)的存在可以使炮管材料不发生腐蚀。同时进行了实验验证。

A STUDY ON THE MECHANISM OF EMILINATING RESIDUAL COPPER SCALE

With the theory of chemical thermodynamics, the mechanism of eliminating residual copper scale is proved as follows. Cu is oxidized to Cu~(2+) by a strong oxidant (Na_2S_2O_3), and then Cu~(2+) reacts with NH_3 to form a stable complex Cu( NH_3 )_ 4]~( 2+). The existence of corrosion inhibitor (NaNO_2) prevents the material of gun bore from corrosion. The feasibity of eliminating residual copper has been proved with a lot of chemical tests.