WO2018218433A1 - Agent passivant, pièce métallique et procédé de traitement de passivation s'y rapportant - Google Patents

Agent passivant, pièce métallique et procédé de traitement de passivation s'y rapportant Download PDF

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Publication number
WO2018218433A1
WO2018218433A1 PCT/CN2017/086357 CN2017086357W WO2018218433A1 WO 2018218433 A1 WO2018218433 A1 WO 2018218433A1 CN 2017086357 W CN2017086357 W CN 2017086357W WO 2018218433 A1 WO2018218433 A1 WO 2018218433A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal workpiece
passivator
passivating agent
treatment
passivation
Prior art date
Application number
PCT/CN2017/086357
Other languages
English (en)
Chinese (zh)
Inventor
王饶玲
Original Assignee
深圳市恒兆智科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市恒兆智科技有限公司 filed Critical 深圳市恒兆智科技有限公司
Priority to PCT/CN2017/086357 priority Critical patent/WO2018218433A1/fr
Priority to CN201780090796.6A priority patent/CN110651066A/zh
Publication of WO2018218433A1 publication Critical patent/WO2018218433A1/fr

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Classifications

    • 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
    • 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
    • C23C22/34—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 containing fluorides or complex fluorides
    • 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
    • C23C22/56—Treatment of aluminium 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
    • C23C22/78—Pretreatment of the material to be coated

Definitions

  • the present invention relates to the technical field of metal workpiece surface treatment, and in particular to a passivating agent, a metal workpiece and a passivation treatment method thereof.
  • the surface treatment technology of the workpiece is usually applied.
  • the surface treatment of galvanized, aluminum, iron and their alloys goes deep into all walks of life.
  • most workpieces require pre-treatment before surface treatment, for example, cleaning, decontamination and degreasing, and metal parts for some applications require passivation.
  • a passivating agent which is easy to use, safe and environmentally friendly, has a good passivation effect, and a metal workpiece passivation method and a metal workpiece obtained by passivation treatment are provided.
  • a passivating agent comprising the following components in a mass content: 0.2-4 g/L lanthanum nitrate, 0.01-0.3 g/L borax, 0.
  • a metal workpiece passivation method comprising the steps of: formulating a passivating agent as described above; immersing the metal workpiece in a passivating solution, and after a predetermined daytime treatment, washing the metal workpiece and drying.
  • the metal workpiece is not easily oxidized and the coating adhesion is good.
  • the passivating agent has a small dosage, low energy consumption, simple operation, good corrosion resistance, and is non-toxic and environmentally friendly.
  • Embodiments of the present invention provide a passivating agent for surface pretreatment of a metal workpiece, including the following components: 0.2-4 g/L lanthanum nitrate, 0.01-0.3 g/L borax, 0.01-0. lg /L ammonium hydrogen fluoride, 3-20 g / L phytic acid, 0.01-0.3 g / L nickel fluoride.
  • the cerium nitrate has a mass content of 0.5 to 3 g/L, more preferably 1 to 2 g/L.
  • the borax has a mass content of from 0.1 to 0.2 g/L.
  • the ammonium hydrogen fluoride has a mass content of 0.02-0.1 g/L
  • the phytic acid has a mass content of 5-15 g/L
  • the nickel fluoride has a mass content of 0.1-0.3 g/L
  • the passivating agent The pH is controlled to 4-6.
  • Lanthanum nitrate and phytic acid are the main passive film components, borax control and stable PH value, ammonium hydrogen fluoride as a catalytic component, and nickel fluoride increases the corrosion resistance of the film.
  • Embodiments of the present invention also provide a metal workpiece passivation method, comprising the steps of: preparing a passivating agent as described above; immersing the metal workpiece in a passivating solution, after a predetermined daytime treatment, and then washing Metal workpiece, dry, that is, a colorless to light-colored corrosion-resistant passivation layer formed on the metal working surface.
  • the metal workpiece is immersed in the crucible of the passivating solution for 5-10 minutes. Further, after washing, passivation is carried out, followed by washing with water and drying. After passivation treatment, the temperature is controlled at 20 ° C to 30 ° C, that is, it is treated at approximately normal temperature.
  • Embodiments of the present invention also provide a metal workpiece which is treated by the metal workpiece passivation method as described above, so that the coating adhesion and corrosion resistance of the metal workpiece are greatly improved.
  • the following metal workpieces are all based on aluminum alloy 6061.
  • the passivating agent in this embodiment includes the following mass contents: 0.2 g of cerium nitrate, O.Olg borax, O.Olg ammonium hydrogen fluoride, 20 g of phytic acid, O.Olg nickel fluoride, and water to 1 L.
  • Treatment method preparing a passivating agent as defined above; dissolving the passivating agent in water to prepare a passivating agent solution, The metal workpiece is immersed in the passivating solution. After 5 minutes of treatment, the metal workpiece is washed with water and dried at 80 ° C to form a corrosion-resistant passivation layer on the metal working surface.
  • the passivating agent in this embodiment includes the following mass content components: 0.5 g of cerium nitrate, 0.05 g of borax, 0.02 g of ammonium hydrogen fluoride, 10 g of phytic acid, 0.05 g of nickel fluoride, and water to 1 L.
  • Treatment method preparing the passivating agent of the above formula; dissolving the passivating agent in water to prepare a passivating agent solution, immersing the metal workpiece in the passivating agent solution, and after washing for 5 minutes, washing the metal workpiece, 80 Dry at °C, ie a corrosion-resistant passivation layer is formed on the metal working surface.
  • the passivating agent in this example includes the following mass contents: lg lanthanum nitrate, O.lg borax, 0.03 g ammonium hydrogen fluoride, 8 g phytic acid, 0.15 g nickel fluoride, and water to 1 L.
  • Treatment method preparing a passivating agent as defined above; dissolving the passivating agent in water to prepare a passivating agent solution, immersing the metal workpiece in the passivating agent solution, and after washing for 5 minutes, washing the metal workpiece, 80 Dry at °C, ie a corrosion-resistant passivation layer is formed on the metal working surface.
  • the passivating agent in this example comprises the following mass contents: 2 g of cerium nitrate, 0.2 g of borax, 0.05 g of ammonium hydrogen fluoride, 5 g of phytic acid, 0.2 g of nickel fluoride, and water to 1 L.
  • Treatment method preparing the passivating agent of the above formula; dissolving the passivating agent in water to prepare a passivating agent solution, immersing the metal workpiece in the passivating agent solution, and after washing for 5 minutes, washing the metal workpiece, 80 °C dry, That is, a corrosion-resistant passivation layer is formed on the metal working surface.
  • the passivating agent in this example comprises the following mass contents: 4 g of cerium nitrate, 0.3 g of borax, 0.1 g of ammonium hydrogen fluoride, 3 g of phytic acid, 0.3 g of nickel fluoride, and water to 1 L.
  • Treatment method preparing the passivating agent of the above formula; dissolving the passivating agent in water to prepare a passivating agent solution, immersing the metal workpiece in the passivating agent solution, and after washing for 5 minutes, washing the metal workpiece, 80 Dry at °C, ie a corrosion-resistant passivation layer is formed on the metal working surface.

Landscapes

  • 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

L'invention concerne un agent passivant, une pièce métallique et un procédé de traitement de passivation s'y rapportant. L'agent passivant est utilisé pour le prétraitement de surface de la pièce métallique. Sur une base de 100 parties en poids, l'agent passivant comprend les constituants suivants, en teneurs massiques : 0,2 g/L à 4 g/L de nitrate céreux, 0,01 g/L à 0,3 g/L de borax, 0,01 g/L à 0,1 g/L de bifluorure d'ammonium, 3 g/L à 20 g/L d'acide phytique et 0,01 g/L à 0,3 g/L de fluorure nickélifère. Aucun constituant contenant du chrome n'est utilisé dans l'agent passivant, de sorte que l'agent passivant soit un agent passivant sans chrome et soit approprié pour un traitement de passivation de la pièce métallique. Une fois le traitement effectué à l'aide de l'agent passivant, une couche de passivation résistante à la corrosion, de teinte incolore à faiblement colorée, est formée. Le produit ne contient pas d'ions chrome dangereux pour l'environnement ; il est utilisé pour fournir une couche inférieure pour un traitement de revêtement et un traitement de protection, et il constitue un produit écologique et respectueux de l'environnement. Lorsque la pièce traitée est en alliage de magnésium, la valeur de pH est ajustée à 5 à 6 à l'aide d'eau ammoniacale.
PCT/CN2017/086357 2017-05-27 2017-05-27 Agent passivant, pièce métallique et procédé de traitement de passivation s'y rapportant WO2018218433A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2017/086357 WO2018218433A1 (fr) 2017-05-27 2017-05-27 Agent passivant, pièce métallique et procédé de traitement de passivation s'y rapportant
CN201780090796.6A CN110651066A (zh) 2017-05-27 2017-05-27 钝化剂、金属工件及其钝化处理方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/086357 WO2018218433A1 (fr) 2017-05-27 2017-05-27 Agent passivant, pièce métallique et procédé de traitement de passivation s'y rapportant

Publications (1)

Publication Number Publication Date
WO2018218433A1 true WO2018218433A1 (fr) 2018-12-06

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CN (1) CN110651066A (fr)
WO (1) WO2018218433A1 (fr)

Citations (6)

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Publication number Priority date Publication date Assignee Title
CN101054700A (zh) * 2007-02-09 2007-10-17 上海大学 镁合金表面直接电沉积锌镍合金的方法
CN101225517A (zh) * 2008-02-22 2008-07-23 陈东初 镁合金表面制备耐腐蚀性钝化膜的无铬处理液及其使用方法
US20080254205A1 (en) * 2007-04-13 2008-10-16 Enthone Inc. Self-initiated alkaline metal ion free electroless deposition composition for thin co-based and ni-based alloys
CN103088334A (zh) * 2013-02-22 2013-05-08 郭仰南 一种金属表面处理工艺中的中和/钝化剂
CN104388915A (zh) * 2014-11-24 2015-03-04 毛山红 用于铝合金表面处理的锰锆系无铬钝化液及其处理方法
CN106676508A (zh) * 2016-12-30 2017-05-17 宁波际超新材料科技有限公司 一种无铬钝化剂及其制作方法

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CN100552087C (zh) * 2008-02-25 2009-10-21 合肥华清金属表面处理有限责任公司 一种用于镁合金表面处理的专用表面处理剂
JP4903897B2 (ja) * 2008-03-17 2012-03-28 大成プラス株式会社 亜鉛系鍍金鋼板と被着材の接合体及びその製造方法
CN100591802C (zh) * 2008-03-27 2010-02-24 武汉科技大学 一种用于镀锌板的无铬钝化液及其制备方法
CN103255405A (zh) * 2013-05-22 2013-08-21 广东新会罗坑电力线路器材有限公司 一种用于材料镀层处理的稀土无铬钝化液及其应用
CN105463428B (zh) * 2015-12-07 2019-01-11 乐凯胶片股份有限公司 一种铝箔表面钝化液及铝塑膜

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101054700A (zh) * 2007-02-09 2007-10-17 上海大学 镁合金表面直接电沉积锌镍合金的方法
US20080254205A1 (en) * 2007-04-13 2008-10-16 Enthone Inc. Self-initiated alkaline metal ion free electroless deposition composition for thin co-based and ni-based alloys
CN101225517A (zh) * 2008-02-22 2008-07-23 陈东初 镁合金表面制备耐腐蚀性钝化膜的无铬处理液及其使用方法
CN103088334A (zh) * 2013-02-22 2013-05-08 郭仰南 一种金属表面处理工艺中的中和/钝化剂
CN104388915A (zh) * 2014-11-24 2015-03-04 毛山红 用于铝合金表面处理的锰锆系无铬钝化液及其处理方法
CN106676508A (zh) * 2016-12-30 2017-05-17 宁波际超新材料科技有限公司 一种无铬钝化剂及其制作方法

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