公开(公告)号：EP1580304B1

公开(公告)日：2006-06-14

申请号：EP04425208.8

申请日：2004-03-24

申请人： DANIELI & C. OFFICINE MECCANICHE S.p.A.

发明人： Paramonov, Vladimir Andreevic ,  Vinogradov, Vitalij Polikarpovic ,  Takhautdinov, Rafkat Spartakovic ,  Frixione, Angelo ,  Turchetto, Michele ,  Frimpong, Joseph ,  Karpov, Anatoliy Aleksandrovic ,  Guljaeva, Galina Sergeevna

IPC分类号： C25D3/32

CPC分类号： C25D3/32

公开(公告)号：EP1580304A1

公开(公告)日：2005-09-28

申请号：EP04425208.8

申请日：2004-03-24

申请人： DANIELI & C. OFFICINE MECCANICHE S.p.A.

发明人： Paramonov, Andreevic Vladimir ,  Vinogradov, Vitalij Polikorpovic ,  Takhautdinov, Rafkat Spartakovic ,  Frixione, Angelo ,  Turchetto, Michele ,  Frimpong, Joseph ,  Krapov, Anatoliy Aleksandrovic ,  Guljaeva, Galina Sergeevna

IPC分类号： C25D3/32

CPC分类号： C25D3/32

摘要： The invention refers to a composition and method of electrolytic tinning in continuous a steel strip or plate with an electrolyte composition comprising the following components (g/l):

Tin (in a form of tin sulfamate)   50-90
Sulfamic acid, free   40-100
Sulfates, in a form of SO 4 2-    0-15
Nitrogen-bearing block polymer   1-6
said block polymer being a copolymer of propylene oxide and ethylene oxide with molecular weight of 3950 to 6450 and "number of ethylene oxide links-to-number of propylene oxide links" ratio of 1.4-1.2:1.0 at initial buildup of required number of links from propylene oxide followed by oxyethylation.