電気亜鉛めっき鋼板のはんだ特性に及ぼす前めっきの影響 Effect of Preplating on Electrogalvanized Steel Solderability

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抄録

Sn and Pb-Sn plating steels are generally used as solderable outer-packaging materials for electrical machinery. Short-circuiting of electric machine parts due to the growth of Sn whiskers and the adverse influence of poisonous Pb on the environment arising with such materials have become increasingly serious problems.<br>Electrogalvanized steels have been used as replacements even though their solderability is not as good as that of Sn and Pb-Sn plating steels.<br>To improve solderability, we have studied Ni, Fe, and Sn preplating on electrogalvanized steels. In this report, we investigated solder spreadability, wettability, and peeling strength.<br>Ni or Fe preplating under the Zn plating layer effectively improved solderability. Ni preplating showed a particularly excellent value for solder peeling strength.<br>It was found that, while Zn gradually dissolved in solder, preplated Ni or Fe did not. This prevented the surface of the base steel from being exposed. Ni or Fe also formed Ni<sub>3</sub>Sn<sub>2</sub>, Ni<sub>3</sub>Sn, or FeSn<sub>2</sub> with solder. These improve steel solderability.

収録刊行物

  • 表面技術 = The Journal of the Surface Finishing Society of Japan  

    表面技術 = The Journal of the Surface Finishing Society of Japan 47(8), 701-706, 1996-08 

    The Surface Finishing Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002257042
  • NII書誌ID(NCID)
    AN1005202X
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09151869
  • NDL 記事登録ID
    4012579
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-291
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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