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公开(公告)号：US4961794A
公开(公告)日：1990-10-09
申请号：US305254
申请日：1989-02-01
CPC分类号： C23C22/73 , C23C22/364
摘要： Processes and solutions for phosphating metal surfaces. The solutions are acidic aqueous phosphate solutions containing (a) from 0.1 to 1.5 g/l of zinc ion; (b) from 5 to 50 g/l of phosphate ion; (c) from 0.2 to 4 g/l of manganese ion; (d) at least 0.05 g/l of fluoride ion; (e) less than 0.5 g/l of chloride ion; and (f) a phosphating accelerator. The metal surface phosphated with the solution including galvanized steel, is free of white spots and is suitable for electrocoating.
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公开(公告)号：US4838957A
公开(公告)日：1989-06-13
申请号：US159474
申请日：1988-02-16
CPC分类号： C23C22/73 , C23C22/364
摘要： Processes and solutions for phosphating metal surfaces. The solutions are acidic aqueous phosphate solutions containing (a) from 0.1 to 1.5 g/l of zinc ion; (b) from 5 to 50 g/l of phosphate ion; (c) from 0.2 to 4 g/l of manganese ion; (d) at least 0.05 g/l of fluoride ion; (e) less than 0.5 g/l of chloride ion; and (f) a phosphating accelerator. The metal surface phosphated with the solution including galvanized steel, is free of white spots and is suitable for electrocoating.
摘要翻译： 磷化金属表面的工艺和解决方案。 溶液是含有（a）0.1-1.5g / l锌离子的酸性磷酸水溶液; （b）5至50g / l磷酸根离子; （c）0.2〜4g / l的锰离子; （d）至少0.05g / l的氟离子; （e）小于0.5g / l氯离子; 和（f）磷化促进剂。 用镀锌钢板溶液磷化的金属表面没有白点，适用于电泳。
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公开(公告)号：US06342107B1
公开(公告)日：2002-01-29
申请号：US07849791
申请日：1992-03-11
IPC分类号： C23C2207
CPC分类号： C23C22/73 , C23C22/364 , C23C22/365
摘要： Processes and solutions for phosphating metal surfaces. The solutions are acidic aqueous phosphate solutions containing a) from 0.1 to 1.5 g/l of zinc ion; b) from 5 to 50 g/l of phosphate ion; c) from 0.2 to 4 g/l of manganese ion; d) at least 0.05 g/l of fluoride ion; e) less than 0.5 g/l of chloride ion; and f) a phosphating accelerator. The metal surface phosphated with the solution including galvanized steel, is free of white spots and is suitable for electrocoating.
摘要翻译： 磷化金属表面的工艺和解决方案。 溶液是酸性磷酸水溶液，其含有a）0.1-1.5g / l的锌离子; b）5至50g / l磷酸根离子; c）0.2〜4g / l的锰离子; d）至少0.05g / l的氟离子; e）小于0.5g / l的氯离子; 和f）磷化促进剂。 用镀锌钢板溶液磷化的金属表面没有白点，适用于电泳。
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公开(公告)号：US4639295A
公开(公告)日：1987-01-27
申请号：US765624
申请日：1985-08-14
摘要： A method for enhancing the corrosion resistance of a metal surface at the edge portion which comprises applying direct current to said metal surface as previously zinc phosphated as a negative electrode in an acidic solution comprising zinc ion in a concentration of 2 to 3 g/L, phosphate ion in a concentration of 8 to 14 g/L and chloride ion in a concentration of 3 to 6 g/L under the condition of 5 to 15 A/dm.sup.2 (metal surface) at a temperature of 20.degree. to 40.degree. C. to make an electric zinc phosphate coating film having corrosion resistance.
摘要翻译： 一种用于提高边缘部分的金属表面的耐腐蚀性的方法，该方法包括在包含浓度为2至3g / L的锌离子的酸性溶液中将如前所述的磷酸锌作为负极的直流电流施加到所述金属表面， 浓度为8〜14g / L的磷酸根离子，浓度为3〜6g / L的氯离子，在5〜15A / dm 2（金属表面）的条件下，在20〜40℃的温度下进行。 制成具有耐腐蚀性的电镀磷酸锌膜。
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