CN105803373B - 热浸锌后冷却钝化液及热浸锌冷却钝化工艺 - Google Patents

热浸锌后冷却钝化液及热浸锌冷却钝化工艺 Download PDF

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CN105803373B
CN105803373B CN201610325305.9A CN201610325305A CN105803373B CN 105803373 B CN105803373 B CN 105803373B CN 201610325305 A CN201610325305 A CN 201610325305A CN 105803373 B CN105803373 B CN 105803373B
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workpiece
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兰国隆
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Chifeng Guangyuan Electric Power Iron Tower Manufacturing Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26After-treatment
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06Zinc or cadmium or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/53Treatment of zinc or alloys based thereon

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  • Mechanical Engineering (AREA)
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Abstract

本发明提供一种热浸锌后冷却钝化液及热浸锌冷却钝化工艺。所述热浸锌后冷却钝化液配方为:氯化物1‑5g/L,硫酸盐8‑15g/L,草酸3‑10g/L,67%硝酸1‑5ml/L,硫酸铝钾15‑20g/L,溶水比例为1:6000‑1:9000,所述热浸锌后冷却钝化液酸碱度pH典型值为2‑5。所述热浸锌后冷却钝化液的热浸锌冷却钝化工艺,其特征在于,包括以下步骤:步骤一、热浸锌处理:将工件进行热浸锌处理;步骤二、冷却钝化:浸锌的工件放入冷却钝化槽中,冷却钝化时间为:1‑3分钟;步骤三、干燥整理:将钝化后的工件进行干燥,并进入整理工序本发明提供的热浸锌后冷却钝化液及热浸锌冷却钝化工艺将冷却及钝化工艺合并,减少工序流程,省时省力,降低制造成本,减少作业面积及工业废水的数量。

Description

热浸锌后冷却钝化液及热浸锌冷却钝化工艺
技术领域
本发明属于金属防腐领域,尤其涉及一种热浸锌锌后冷却钝化液及热浸锌冷却钝化工艺。
背景技术
热浸锌又叫热浸镀锌,作为一种有效的金属防腐方式,已被广泛用于各行业的金属结构设施上。热浸锌是将除锈后的钢构件浸入450℃左右高温融化的锌液中,使钢构件表面附着锌层,锌层厚度对5mm以下薄板不得小于65μm,对厚板不小于86μm。从而起到防腐蚀的目的。耐久年限长,生产工业化程度高,质量稳定。因而被大量用于受大气腐蚀较严重且不易维修的室外钢结构中。如大量输电塔、通讯塔等。近年来大量出现的轻钢结构体系中的压型钢板等。也较多采用热浸锌防腐蚀。目前,我国输电线路铁塔产品的防腐均采用热浸镀锌技术,工艺要求工件热浸镀锌后要经过水冷却和钝化两道工序进行处理。费时费力,处理工序繁琐,增加制造成本,占用作业面积大,产生的工业废水多。
发明内容
为了解决上述热浸锌后冷却钝化费时费力,处理工序繁琐,增加制造成本,占用作业面积大,产生的工业废水多的问题,本发明提供一种省时省力,处理工序简单,降低制造成本,占用作业面积小,产生的工业废水少的热浸锌后冷却钝化液及热浸锌冷却钝化工艺。
本发明提供的热浸锌后冷却钝化液,所述热浸锌后冷却钝化液配方为:氯化物1-5g/L,硫酸盐8-15g/L,草酸3-10g/L,67%硝酸1-5ml/L,硫酸铝钾15-20g/L,溶水比例为1:6000-1:9000,所述热浸锌后冷却钝化液酸碱度pH典型值为2-5。
在本发明提供的应用所述热浸锌后冷却钝化液的热浸锌冷却钝化工艺一种较佳实施例中,包括以下步骤:
步骤一、热浸锌处理:将工件进行热浸锌处理;
步骤二、冷却钝化:浸锌的工件放入冷却钝化槽中,冷却钝化时间为:1-3分钟;
步骤三、干燥整理:将钝化后的工件进行干燥,并进入整理工序。
在本发明提供的热浸锌后冷却钝化液的热浸锌冷却钝化工艺一种较佳实施例中,所述步骤一中的热浸锌处理工艺包括如下步骤:
步骤一、镀前处理:将需要镀锌的工件表面清理干净;
步骤二:酸洗:将工件放入酸洗槽中进行酸洗除锈;
步骤三、溶剂助镀:将工件放入助镀溶剂槽中,使工件表面附着助镀溶剂;
步骤四、工件挂串:将工件挂串好以备浸锌;
步骤五:浸锌:将工件放入浸锌槽中浸锌。
本发明的热浸锌后冷却钝化液配方简单,原材料成本低,配方液易于获得,热浸锌后热浸锌冷却钝化工艺通过增加低温反应时间,在工件冷却时,钝化液吸收了一定的热量易于溶敷,同时钝化液起到了冷却和钝化的双重作用,省时省力,处理工序简单,降低制造成本,占用作业面积小,产生的工业废水少,使防腐质量达到了预期的效果。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图,其中:
图1是本发明提供的应用所述热浸锌后冷却钝化液的热浸锌冷却钝化工艺一种实施例的工艺流程图;
图2是图1所示的热浸锌冷却钝化工艺的热浸锌处理S111的工艺流程图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
所述热浸锌后冷却钝化液配方为:氯化物1-5g/L,硫酸盐8-15g/L,草酸3-10g/L,67%硝酸1-5ml/L,硫酸铝钾15-20g/L,溶水比例为1:6000-1:9000。所述热浸锌后冷却钝化液酸碱度pH典型值为2-5。
请一并参阅图1及图2,其中图1是本发明提供的应用所述热浸锌后冷却钝化液的热浸锌冷却钝化工艺一种实施例的工艺流程图;图2是图1所示的热浸锌冷却钝化工艺的热浸锌处理S111的工艺流程图。
应用所述热浸锌后冷却钝化液的热浸锌冷却钝化工艺1包括如下步骤:
步骤S11、热浸锌处理:将工件进行热浸锌处理;
具体包括如下步骤:
步骤S111、镀前处理:将需要镀锌的工件表面清理干净;
步骤S112:酸洗:将工件放入酸洗槽中进行酸洗除锈;
步骤S113、溶剂助镀:将工件放入助镀溶剂槽中,使工件表面附着助镀溶剂;
步骤S114、工件挂串:将工件挂串好以备浸锌;
步骤S115:浸锌:将工件放入浸锌槽中浸锌。
步骤S12、冷却钝化:浸锌的工件放入冷却钝化槽中,冷却钝化时间为:1-3分钟;
步骤S13、干燥整理:将钝化后的工件进行干燥,并进入整理工序。
本发明的热浸锌后冷却钝化液配方简单,原材料成本低,配方液易于获得,热浸锌后热浸锌冷却钝化工艺1通过增加低温反应时间,在工件冷却时,钝化液吸收了一定的热量易于溶敷,同时钝化液起到了冷却和钝化的双重作用,省时省力,处理工序简单,降低制造成本,占用作业面积小,产生的工业废水少,使防腐质量达到了预期的效果。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换,或直接或间接运用在其它相关的技术领域,均同理包括在本发明的专利保护范围内。

Claims (3)

1.一种热浸锌后冷却钝化液,其特征在于,所述热浸锌后冷却钝化液配方为:氯化物1-5g/L,硫酸盐8-15g/L,草酸3-10g/L,67%硝酸1-5ml/L,硫酸铝钾15-20g/L,溶水比例为1:6000-1:9000,所述热浸锌后冷却钝化液酸碱度pH典型值为2-5。
2.一种应用权利要求1所述的热浸锌后冷却钝化液的热浸锌冷却钝化工艺,其特征在于,包括以下步骤:
步骤一、热浸锌处理:将工件进行热浸锌处理;
步骤二、冷却钝化:浸锌的工件放入冷却钝化槽中,冷却钝化时间为:1-3分钟;
步骤三、干燥整理:将钝化后的工件进行干燥,并进入整理工序。
3.根据权利要求2所述的热浸锌冷却钝化工艺,其特征在于,所述步骤一中的热浸锌处理工艺包括如下步骤:
步骤一、镀前处理:将需要镀锌的工件表面清理干净;
步骤二:酸洗:将工件放入酸洗槽中进行酸洗除锈;
步骤三、溶剂助镀:将工件放入助镀溶剂槽中,使工件表面附着助镀溶剂;
步骤四、工件挂串:将工件挂串好以备浸锌;
步骤五:浸锌:将工件放入浸锌槽中浸锌。
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