铝合金化铣中Na_(2)S消耗方式的研究  

Study on consumption mode of Na_(2)S in aluminum alloy chemical milling

作　　者：陈庆龙[1] 廖睿智 Chen Qinglong;Liao Ruizhi(China Aviation Industry Jincheng Nanjing Electrical and Hydraulic Engineering Research Center,Nanjing 211106;AVIC Landing-Gear Hunan,Changsha 410200,China)

机构地区：[1]南京机电液压工程研究中心,南京211106 [2]中航飞机起落架有限责任公司,长沙410200

出　　处：《铝加工》2022年第1期27-30,共4页Aluminium Fabrication

摘　　要：Na_(2)S是铝合金化铣槽液中不可缺少的成分之一,主要起到降低表面粗糙度的作用。本文研究了Na_(2)S在整个化铣过程中的消耗方式。实验结果表明,化铣过程中主要是合金元素消耗S^(2-)。2024-T3化铣时主要是元素Cu消耗S^(2-)形成Cu_(2)S,槽液中每增加1g/L的Al^(3+)需消耗0.0301 g/L的Na_(2)S。7075-T6则主要是Zn和Cu消耗S^(2-)形成ZnS和Cu_(2)S,槽液中每增加1g/L的Al^(3+)需消耗0.0797 g/L的Na_(2)S。Sodium sulfide is an integral part of aluminum alloy chemical milling components,it’s main role is to reless roughness.The consumption way of sodium sulfide during the whole chemical milling process is researched.The results showed that alloy elements were the main reason to consume S^(2-).The main element Cu consumed S^(2-) and Cu_(2)S was formed during 2024-T3 chemical milling.0.0301g/L Na_(2)S is consumed when Al^(3+) increased 1g/L.The main elements Cu and Zn consume S^(2-) and formed Cu_(2)S and ZnS in 7075-T6 chemical milling 0.0797g/L Na_(2)S is consumed when Al^(3+) increased 1g/L.

关 键 词：铝合金 化铣 硫化钠 消耗方式 

分 类 号：TG178.2[金属学及工艺—金属表面处理]