发明授权
- 专利标题： Fluxes for lead-free galvanizing
- 专利标题（中）： 无铅镀锌助焊剂
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申请号： US264133申请日： 1994-06-21
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公开(公告)号： US5437738A公开(公告)日： 1995-08-01
- 发明人: Yum Gerenrot , David Leychkis , Thomas L. Ranck , James L. Griffin , Gary Stefanick
- 申请人： Yum Gerenrot , David Leychkis , Thomas L. Ranck , James L. Griffin , Gary Stefanick
- 专利权人： Gerenrot; Yum,Leychkis; David,Ranck; Thomas L.,Griffin; James L.,Stefanick; Gary
- 当前专利权人： Gerenrot; Yum,Leychkis; David,Ranck; Thomas L.,Griffin; James L.,Stefanick; Gary
- 主分类号： B23K35/36
- IPC分类号： B23K35/36 ; C23C2/02 ; C23C2/30 ; B23K35/34
摘要：
The thermal resistance of a zinc chloride/ammonium chloride galvanizing preflux is improved by incorporating therein boric acid, other alkali metal chlorides and an aliphatic amino derivative. An improved zinc chloride/ammonium chloride galvanizing, top-flux includes a deoxidizer such as graphite or charcoal, other alkali metal chlorides and a foaming agent. Both compositions, the preflux and the top-flux, can be used to advantage in galvanizing steel with low lead or no lead zinc.
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