Influence of electrolyzed oxidizing water on copper nickel alloy for lead frame

This paper describes the elucidation about the influence of electrolyzed oxidizing water (It abbreviates as EO water) on copper nickel alloy for lead frame. First, the etching characteristics of EO water against the surface of copper nickel alloy for lead frame was clarified using chemicals for comp...

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Main Author: Unkai SATO
Format: Article
Language:Japanese
Published: The Japan Society of Mechanical Engineers 2014-06-01
Series:Nihon Kikai Gakkai ronbunshu
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/transjsme/80/814/80_2014smm0148/_pdf/-char/en
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author Unkai SATO
author_facet Unkai SATO
author_sort Unkai SATO
collection DOAJ
description This paper describes the elucidation about the influence of electrolyzed oxidizing water (It abbreviates as EO water) on copper nickel alloy for lead frame. First, the etching characteristics of EO water against the surface of copper nickel alloy for lead frame was clarified using chemicals for comparative immersion experiments. The comparative study showed that as for the etching efficiency on copper iron alloy, Na2SO4 EO water was superior to H2SO4 solution, and NaCl EO water was superior to HCl solution. Also, EO water has the selective etching tendency to Cu element in copper nickel alloy for lead frame like chemicals. As for the relationship between immersion time and etching depth, Na2SO4 EO water is same as NaCl EO water, and become proportional connection. Next, by the observation using SEM image, the influence of EO water on the surface shape of copper nickel alloy for lead frame was clarified. The results indicated that Na2SO4 EO water did not have a big influence on the surface shape. However, when using NaCl EO water, the dimples occurs, and when using H2SO4 solution, projection occurs in the surface. Lastly, as for the test piece after heating processing, it did the surface oxidation layer removal experiment by the immersion. The results show that EO water can remove the surface oxidation layer like chemicals, and Na2SO4 EO water remove the surface oxidation layer more efficiently than NaCl EO water
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spelling doaj.art-375399decb0c4eb096879d7225ed21c42022-12-22T03:39:21ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612014-06-0180814SMM0148SMM014810.1299/transjsme.2014smm0148transjsmeInfluence of electrolyzed oxidizing water on copper nickel alloy for lead frameUnkai SATO0SHINSHU Univ. Faculty of EducationThis paper describes the elucidation about the influence of electrolyzed oxidizing water (It abbreviates as EO water) on copper nickel alloy for lead frame. First, the etching characteristics of EO water against the surface of copper nickel alloy for lead frame was clarified using chemicals for comparative immersion experiments. The comparative study showed that as for the etching efficiency on copper iron alloy, Na2SO4 EO water was superior to H2SO4 solution, and NaCl EO water was superior to HCl solution. Also, EO water has the selective etching tendency to Cu element in copper nickel alloy for lead frame like chemicals. As for the relationship between immersion time and etching depth, Na2SO4 EO water is same as NaCl EO water, and become proportional connection. Next, by the observation using SEM image, the influence of EO water on the surface shape of copper nickel alloy for lead frame was clarified. The results indicated that Na2SO4 EO water did not have a big influence on the surface shape. However, when using NaCl EO water, the dimples occurs, and when using H2SO4 solution, projection occurs in the surface. Lastly, as for the test piece after heating processing, it did the surface oxidation layer removal experiment by the immersion. The results show that EO water can remove the surface oxidation layer like chemicals, and Na2SO4 EO water remove the surface oxidation layer more efficiently than NaCl EO waterhttps://www.jstage.jst.go.jp/article/transjsme/80/814/80_2014smm0148/_pdf/-char/encopper nickel alloylead frameelectrolyzed oxidation wateretching performancesurface shapesurface oxidation layerremoval
spellingShingle Unkai SATO
Influence of electrolyzed oxidizing water on copper nickel alloy for lead frame
Nihon Kikai Gakkai ronbunshu
copper nickel alloy
lead frame
electrolyzed oxidation water
etching performance
surface shape
surface oxidation layer
removal
title Influence of electrolyzed oxidizing water on copper nickel alloy for lead frame
title_full Influence of electrolyzed oxidizing water on copper nickel alloy for lead frame
title_fullStr Influence of electrolyzed oxidizing water on copper nickel alloy for lead frame
title_full_unstemmed Influence of electrolyzed oxidizing water on copper nickel alloy for lead frame
title_short Influence of electrolyzed oxidizing water on copper nickel alloy for lead frame
title_sort influence of electrolyzed oxidizing water on copper nickel alloy for lead frame
topic copper nickel alloy
lead frame
electrolyzed oxidation water
etching performance
surface shape
surface oxidation layer
removal
url https://www.jstage.jst.go.jp/article/transjsme/80/814/80_2014smm0148/_pdf/-char/en
work_keys_str_mv AT unkaisato influenceofelectrolyzedoxidizingwateroncoppernickelalloyforleadframe