CN110029339A - 一种酸洗磷化工艺 - Google Patents

一种酸洗磷化工艺 Download PDF

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CN110029339A
CN110029339A CN201910126300.7A CN201910126300A CN110029339A CN 110029339 A CN110029339 A CN 110029339A CN 201910126300 A CN201910126300 A CN 201910126300A CN 110029339 A CN110029339 A CN 110029339A
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steel wire
acid
pickling
phosphatization
hung
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胡众凯
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Haiyan Zhaofeng Fasteners Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23C—COATING 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
    • C23C22/00—Chemical 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
    • C23C22/05—Chemical 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
    • C23C22/06—Chemical 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
    • C23C22/48—Chemical 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
    • C23C22/50—Treatment of iron or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23C—COATING 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
    • C23C22/00—Chemical 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
    • C23C22/05—Chemical 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
    • C23C22/60—Chemical 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 alkaline aqueous solutions with pH greater than 8
    • C23C22/62—Treatment of iron or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/083—Iron or steel solutions containing H3PO4
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/021—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by dipping

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

本发明公开了一种酸洗磷化工艺，包括步骤如下：A：去油：将装好盘条钢丝的线架吊入装有去油液的去油池内，常温下浸泡5‑15min，浸泡完后用水冲洗3‑5min；B：磷化：将步骤A冲洗后的钢丝卷吊入装有磷化液的磷化池内，逐渐加热升温至85度左右，浸泡磷化15‑20min，同时在浸泡过程中加入促进剂；C：皂化：将步骤B磷化后的钢丝卷吊入石灰池内，浸泡20min左右；D：酸洗；E：水洗：将步骤D酸洗后的钢丝卷用水冲洗2‑3分钟，冲洗后进行烘干喷漆，该工艺在钢丝磷化后浸入石灰池内进行皂化，能在使钢丝的表面形成保护膜，同时将附着在钢丝表面的磷化液起到除磷效果，同时能够除去磷化后钢丝表面的其他污染物。

Description

一种酸洗磷化工艺
技术领域
本发明涉及钢丝处理技术领域，特别涉及一种酸洗磷化工艺。
背景技术
磷化工艺过程是一种化学与电化学反应形成磷酸盐化学转化膜的过程，所形成的磷酸盐转化膜称之为磷化膜。磷化的目的主要是：给基体金属提供保护，在一定程度上防止金属被腐蚀；用于涂漆前打底，提高漆膜层的附着力与防腐蚀能力。
传统的酸洗磷化工艺通常在经过酸洗后对钢材进行磷化，钢材容易在在酸洗过程中受到腐蚀而产生氢脆的现象，通常采用缓蚀剂来减缓钢材在酸洗时受到的腐蚀，针对上述方案，提出的一种酸洗磷化工艺，先将钢材进行清洗磷化，使钢材表面产生一层保护膜，随后进行酸洗，能够减少钢材受到的腐蚀，同时能够清洗磷化膜表面的氧化层，具有较强的润滑性、耐腐蚀性，冷镦性能和抗疲劳强度高。
发明内容
本发明的目的是提供一种酸洗磷化工艺使得制造的钢丝表面质量优良，光亮度好，具有较强的润滑性、耐腐蚀性，冷镦性能和抗疲劳强度高。
本发明的上述技术目的是通过以下技术方案得以实现的：
一种酸洗磷化工艺，包括步骤如下：
A：去油：将装好盘条钢丝的线架吊入装有去油液的去油池内，常温下浸泡5-15min，浸泡完后用水冲洗3-5min；
B：磷化：将步骤A冲洗后的钢丝卷吊入装有磷化液的磷化池内，逐渐加热升温至85度左右，浸泡磷化15-20min，同时在浸泡过程中加入促进剂；
C：皂化：将步骤B磷化后的钢丝卷吊入石灰池内，浸泡20min左右；
D：酸洗：将步骤C所得的钢丝卷吊入装有酸洗液的酸洗池中，常温下酸洗5-15min；
E：水洗：将步骤D酸洗后的钢丝卷用水冲洗2-3分钟，冲洗后进行烘干喷漆。
作为优选，所述酸洗液为浓度约25%的盐酸、15%硫酸或20%的磷酸中的一种或多种。
作为优选，所述磷化液为氧化锌、磷酸、硝酸、水的混合溶液。
作为优选，所述促进剂为硝酸盐、亚硝酸盐、氯酸盐中的一种或多种。
作为优选，所述在酸洗过程中加入适当的缓蚀剂，所述缓蚀剂为铬酸盐、亚硝酸盐、硅酸盐中的其中一种。
作为优选，所述石灰池内溶液为硬脂肪酸、 片碱 、硼砂、水的混合溶液。
本发明与现有技术相比，具有如下优点和有益效果：
1、该工艺在钢丝磷化后浸入石灰池内进行皂化，能在使钢丝的表面形成保护膜，使钢丝的表面起到润滑的作用。
2、该工艺在酸洗的过程中加入缓蚀剂能够抑制酸对磷化膜以及钢丝内部金属的腐蚀，从而在溶解磷化膜表面氧化物的同时，保护、减少对铁基体的溶解，既可防止金属过腐蚀，还能抑止金属在酸洗过程中产生的氢脆，使金属在酸洗后保持原有材质的机械性能不变。
3、该工艺采用先磷化后酸洗的过程，能够使最后得到的钢丝具有较高的硬度、较强的润滑性、耐腐蚀性，冷镦性能和抗疲劳强度高。
具体实施方式
以下所述仅是本发明的优选实施方式，保护范围并不仅局限于该实施例，凡属于本发明思路下的技术方案应当属于本发明的保护范围。同时应当指出，对于本技术领域的普通技术人员而言，在不脱离本发明原理前提下的若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。
一种酸洗磷化工艺，包括步骤如下：
A：去油：将装好盘条钢丝的线架吊入装有去油液的去油池内，常温下浸泡5-15min，浸泡完后用水冲洗3-5min；
B：磷化：将步骤A冲洗后的钢丝卷吊入装有磷化液的磷化池内，逐渐加热升温至85度左右，浸泡磷化15-20min，磷化液为氧化锌、磷酸、硝酸、水的混合溶液，同时在浸泡过程中加入促进剂，促进剂为硝酸盐、亚硝酸盐、氯酸盐中的一种或多种，促进剂能够缩短磷化膜的生成时间，提高磷化效率；
C：皂化：将步骤B磷化后的钢丝卷吊入石灰池内，浸泡20min左右，石灰池内溶液为硬脂肪酸、 片碱 、硼砂、水的混合溶液，能在使钢丝的表面形成保护膜，对钢丝的表面起到润滑的作用；
D：酸洗：将步骤C所得的钢丝卷吊入装有酸洗液的酸洗池中，常温下酸洗5-15min，在酸洗过程中加入适当的缓蚀剂，所述缓蚀剂为铬酸盐、亚硝酸盐、硅酸盐中的其中一种，能够抑制酸对磷化膜以及钢丝内部金属的腐蚀，从而在溶解磷化膜表面氧化物的同时，保护、减少对铁基体的溶解，既可防止金属过腐蚀，还能抑止金属在酸洗过程中产生的氢脆，使金属在酸洗后保持原有材质的机械性能不变；
E：水洗：将步骤D酸洗后的钢丝卷用水冲洗2-3分钟，冲洗后进行烘干喷漆。
该工艺采用先磷化后酸洗的过程，能够使最后得到的钢丝具有较高的硬度、较强的润滑性、耐腐蚀性，冷镦性能和抗疲劳强度高，提高了钢丝的表面质量，便于后期制得的紧固件涂油和上漆。

Claims (6)

1.一种酸洗磷化工艺，其特征在于，包括步骤如下：
A：去油：将装好盘条钢丝的线架吊入装有去油液的去油池内，去油剂为丙烯酸酯或甲基丙烯酸酯类的乙烯类聚合物，常温下浸泡5-15min，浸泡完后用水冲洗3-5min；
B：磷化：将步骤A冲洗后的钢丝卷吊入装有磷化液的磷化池内，逐渐加热升温至85度左右，浸泡磷化15-20min，同时在浸泡过程中加入促进剂；
C：皂化：将步骤B磷化后的钢丝卷吊入石灰池内，浸泡20min左右；
D：酸洗：将步骤C所得的钢丝卷吊入装有酸洗液的酸洗池中，常温下酸洗5-15min；
E：水洗：将步骤D酸洗后的钢丝卷用水冲洗2-3分钟，冲洗后进行烘干喷漆。
2.根据权利要求1所述的一种酸洗磷化工艺，其特征在于，所述酸洗液为浓度约25%的盐酸、15%硫酸或20%的磷酸中的一种或多种。
3.根据权利要求1所述的一种酸洗磷化工艺，其特征在于，所述磷化液为氧化锌、磷酸、硝酸、水的混合溶液。
4.根据权利要求1所述的一种酸洗磷化工艺，其特征在于，所述促进剂为硝酸盐、亚硝酸盐、氯酸盐中的一种或多种。
5.根据权利要求1所述的一种酸洗磷化工艺，其特征在于，所述在酸洗过程中加入适当的缓蚀剂，所述缓蚀剂为铬酸盐、亚硝酸盐、硅酸盐中的其中一种。
6.根据权利要求1所述的一种酸洗磷化工艺，其特征在于，所述石灰池内溶液为硬脂肪酸、 片碱 、硼砂、水的混合溶液。
CN201910126300.7A 2019-02-20 2019-02-20 一种酸洗磷化工艺 Pending CN110029339A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110561037A (zh) * 2019-07-31 2019-12-13 天津实德新型建材科技有限公司 一种安全防变形的推拉窗的生产方法

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