CN103726040B - 一种用于提高电镀锌钢板表面明度的磷化剂及制备方法 - Google Patents

一种用于提高电镀锌钢板表面明度的磷化剂及制备方法 Download PDF

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CN103726040B
CN103726040B CN201310687446.1A CN201310687446A CN103726040B CN 103726040 B CN103726040 B CN 103726040B CN 201310687446 A CN201310687446 A CN 201310687446A CN 103726040 B CN103726040 B CN 103726040B
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steel sheet
bonderite
plated steel
nitrate
lightness
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CN103726040A (zh
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王伟
陈杰
吴伏生
谢贇
张建伟
孙家琪
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Pakase Precision Surface Treatment (Hubei) Co.,Ltd.
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SHENYANG PARKERIZING CO Ltd
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Abstract

一种用于提高电镀锌钢板表面明度的磷化剂,其特征是由以下物质按重量百分比组成:磷酸:13.0~15.0,硝酸:8.0~12.0,氧化锌:4.0~8.0,磷酸淀粉:2.0~5.0,硝酸镁:0.6~0.8,硝酸锌:0.4~0.8,硝酸镍:0.5~1.0,水 余量。本发明使磷化膜的明度提高到75以上,从而提高电镀锌钢板磷化后的表面质量。

Description

一种用于提高电镀锌钢板表面明度的磷化剂及制备方法
技术领域
本发明属于金属表面化学处理领域,具体涉及一种用于提高电镀锌钢板磷化膜表面明度的磷化剂及制备方法。
背景技术
近年来,随着汽车产量的逐年增加,家用电器、电脑的普及,电子产品的大量出口,对电镀锌钢板的需求增长很快。2007~2010年以宝钢、武钢为主的各钢厂陆续新建或改建电镀锌生产线:2007年广东华冠钢铁有限公司建成20万吨的电镀锌生产线;2008年宝钢新增一条30万吨的电镀锌生产线;2010年武钢建成一条30万吨的电镀锌生产线。随着电镀锌钢板行业的飞速发展,要求配套的钢板表面处理行业必然跟上其发展速度,现阶段电镀锌钢板的表面处理有磷化、钝化等;在对各钢厂的调研中,各钢铁企业普遍期望进一步调整现有磷化技术,使磷化后钢板表面的明度提高,增强钢板的表面外观状态,最终提高钢板处理后的产品质量。
发明内容
本发明的目的在于针对现有产品的缺陷,提出一种可以提高电镀锌钢板表面明度的磷化剂,使磷化膜的明度提高到75以上,从而提高电镀锌钢板磷化后的表面质量。
本发明的目的是通过如下技术方案实现的,产品是由以下物质按重量百分比组成:
磷酸:13.0~15.0,
硝酸:8.0~12.0,
氧化锌:4.0~8.0,
磷酸淀粉:2.0~5.0,
硝酸镁:0.6~0.8,
硝酸锌:0.4~0.8,
硝酸镍:0.5~1.0,
水余量。
制备方法:首先在容器中加入水和无机酸,之后加入氧化锌,待氧化锌全部溶解后,加入磷酸淀粉,并恒温到75℃,1小时,溶液全部溶解透明冷却到50℃以下后,加入硝酸盐搅拌均匀即可。
本发明的积极效果:使磷化膜的明度提高到75以上,从而提高电镀锌钢板磷化后的表面质量。
附图说明
图1是本发明电镀锌磷化剂与常规磷化剂分别进行磷化实验,磷化后的表面质量示意。
具体实施方式
实施例1
磷化剂是由以下物质按照质量百分比组成:
磷酸:13.0%,
硝酸:8.0%,
氧化锌:6.0%,
磷酸淀粉:3.5%,
硝酸镍:0.7%,
硝酸锌:0.6%,
硝酸镁:0.8%,
余水:67.4%;
制备方法:首先在容器中加入水和无机酸,之后加入氧化锌,待氧化锌全部溶解后,加入磷酸淀粉,并恒温到75℃,1小时,溶液全部溶解透明冷却到50℃以下后,加入硝酸盐搅拌均匀即可。
实施例2
磷化剂是由以下物质按照质量百分比组成:
磷酸:14.0%,
硝酸:10.0%,
氧化锌:6.0%,
磷酸淀粉:3.0%,
硝酸镍:0.6%,
硝酸锌:0.6%,
硝酸镁:0.7%,
余水:65.1%;
制备方法同上。
实施例3
磷化剂是由以下物质按照质量百分比组成:
磷酸:15.0%,
硝酸:12.0%,
氧化锌:7.0%,
磷酸淀粉:4.0%,
硝酸镍:1.0%,
硝酸锌:0.7%,
硝酸镁:0.8%,
余水:59.5%;
制备方法同上。
实验数据
由上述实施例配制的电镀锌磷化剂与常规磷化剂分别进行磷化实验,采用明度仪测量钢板表面的明度,见图1的对比图片。可见本发明的电镀锌磷化剂与常规磷化剂相比明度提高到75以上,磷化后的表面质量具有显著提高。

Claims (2)

1.一种用于提高电镀锌钢板表面明度的磷化剂,其特征是由以下物质按重量百分比组成:
磷酸:13.0,
硝酸:8.0~12.0,
氧化锌:4.0~8.0,
磷酸淀粉:2.0~5.0,
硝酸镁:0.6~0.8,
硝酸锌:0.4~0.8,
硝酸镍:0.5~1.0,
水余量。
2.一种如权利要求1所述的用于提高电镀锌钢板表面明度的磷化剂的制备方法,其特征是:首先在容器中加入水和无机酸,之后加入氧化锌,待氧化锌全部溶解后,加入磷酸淀粉,并升温到75℃,恒温1小时,溶液全部溶解透明,冷却到50℃以下后,加入硝酸盐搅拌均匀即可。
CN201310687446.1A 2013-12-17 2013-12-17 一种用于提高电镀锌钢板表面明度的磷化剂及制备方法 Active CN103726040B (zh)

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CN106086852A (zh) * 2016-08-11 2016-11-09 太仓市凯福士机械有限公司 一种表面处理用经济型钝化液
CN107557823A (zh) * 2017-08-11 2018-01-09 江苏富翔汽车科技有限公司 一种新型碱性镀锌高纯度电镀液

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