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 PDFInfo
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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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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 22
- 239000010959 steel Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 16
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 12
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 claims abstract description 12
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 8
- 229920002472 Starch Polymers 0.000 claims abstract description 8
- 239000010452 phosphate Substances 0.000 claims abstract description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 8
- 235000019698 starch Nutrition 0.000 claims abstract description 8
- 239000008107 starch Substances 0.000 claims abstract description 8
- 239000011787 zinc oxide Substances 0.000 claims abstract description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 6
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000005246 galvanizing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000012993 chemical processing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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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
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。
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