JP5396921B2 - 溶融金属が表面に付着し難い亜鉛系めっき鋼板 - Google Patents
溶融金属が表面に付着し難い亜鉛系めっき鋼板 Download PDFInfo
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- JP5396921B2 JP5396921B2 JP2009052768A JP2009052768A JP5396921B2 JP 5396921 B2 JP5396921 B2 JP 5396921B2 JP 2009052768 A JP2009052768 A JP 2009052768A JP 2009052768 A JP2009052768 A JP 2009052768A JP 5396921 B2 JP5396921 B2 JP 5396921B2
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- Prior art keywords
- steel sheet
- molten metal
- znso
- zinc
- layer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Coating With Molten Metal (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Chemical Treatment Of Metals (AREA)
Description
(2) (1)において、酸化物が3Zn(OH)2・ZnSO4・3〜5H2Oを有することを特徴とする溶融金属が表面に付着し難い亜鉛系めっき鋼板である。
(1)溶融金属の耐付着性
溶融金属の耐付着性を評価するために、各供試材について下記の条件でスポット溶接スパッタ発生試験を行った。
・電極:DR形、先端径φ6
・加圧力:200kgf
・通電時間:10cyc/60Hz
・初期加圧時間:35cyc/60Hz
・保持時間:1cyc/60Hz
・電流値:スパッタ発生限界電流+1.0kA
供試材を下記市販のリン酸塩化成処理液にて通常の化成処理を施し、リン酸亜鉛皮膜の結晶状態をSEM観察した。
・脱脂液:FC−4460(日本パーカライジング社製)
・表面調整液:PL−4040(日本パーカライジング社製)
・化成処理液:PB−L3060(日本パーカライジング社製)
<リン酸亜鉛皮膜の結晶状態の評価>
・スケなし:○
・スケあり:×
2 冷延鋼板(被溶接材)
3 電極
4 スパッタ
Claims (2)
- 少なくとも一方の面のめっき層表面に、断面観察から測定される嵩高さが100〜2000nmの酸化物層が存在し、該酸化物が3Zn(OH)2・ZnSO4・xH2Oを有することを特徴とする溶融金属が表面に付着し難い亜鉛系めっき鋼板。
- 前記酸化物が3Zn(OH)2・ZnSO4・3〜5H2Oを有することを特徴とする請求項1に記載の溶融金属が表面に付着し難い亜鉛系めっき鋼板。
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JP2009052768A JP5396921B2 (ja) | 2009-03-06 | 2009-03-06 | 溶融金属が表面に付着し難い亜鉛系めっき鋼板 |
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JP2009052768A JP5396921B2 (ja) | 2009-03-06 | 2009-03-06 | 溶融金属が表面に付着し難い亜鉛系めっき鋼板 |
Publications (2)
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JP2010202960A JP2010202960A (ja) | 2010-09-16 |
JP5396921B2 true JP5396921B2 (ja) | 2014-01-22 |
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JP2009052768A Active JP5396921B2 (ja) | 2009-03-06 | 2009-03-06 | 溶融金属が表面に付着し難い亜鉛系めっき鋼板 |
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JP (1) | JP5396921B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5239570B2 (ja) | 2007-09-04 | 2013-07-17 | Jfeスチール株式会社 | 亜鉛系めっき鋼板 |
JP5928247B2 (ja) * | 2012-08-27 | 2016-06-01 | Jfeスチール株式会社 | 冷延鋼板およびその製造方法 |
US11078573B2 (en) * | 2016-01-19 | 2021-08-03 | Thyssenkrupp Ag | Method for producing a steel product with a Zn coating and a tribologically active layer deposited on the coating, and a steel product produced according to said method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2864552B1 (fr) * | 2003-12-24 | 2006-07-21 | Usinor | Traitement de surface par hydroxysulfate |
JP2007231375A (ja) * | 2006-03-01 | 2007-09-13 | Jfe Steel Kk | 合金化溶融亜鉛めっき鋼板 |
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- 2009-03-06 JP JP2009052768A patent/JP5396921B2/ja active Active
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JP2010202960A (ja) | 2010-09-16 |
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