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WO2019000451A1 - Agent de passivation à base de silane, pièce de fabrication métallique et procédé de traitement de passivation pour celle-ci - Google Patents

Agent de passivation à base de silane, pièce de fabrication métallique et procédé de traitement de passivation pour celle-ci Download PDF

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Publication number
WO2019000451A1
WO2019000451A1 PCT/CN2017/091315 CN2017091315W WO2019000451A1 WO 2019000451 A1 WO2019000451 A1 WO 2019000451A1 CN 2017091315 W CN2017091315 W CN 2017091315W WO 2019000451 A1 WO2019000451 A1 WO 2019000451A1
Authority
WO
WIPO (PCT)
Prior art keywords
silane
metal workpiece
passivating agent
passivation
agent according
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/091315
Other languages
English (en)
Chinese (zh)
Inventor
王饶玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Hengzhaozhi Technology Co Ltd
Original Assignee
Shenzhen Hengzhaozhi Technology Co Ltd
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 Shenzhen Hengzhaozhi Technology Co Ltd filed Critical Shenzhen Hengzhaozhi Technology Co Ltd
Priority to PCT/CN2017/091315 priority Critical patent/WO2019000451A1/fr
Publication of WO2019000451A1 publication Critical patent/WO2019000451A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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

Definitions

  • the present invention relates to the technical field of metal surface treatment, and in particular to a silane 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 steel, zinc, 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 metalworking parts for certain applications require process passivation.
  • a silane passivating agent with good bonding ability and strong corrosion resistance and environmental protection is provided, which is suitable for immersion of pure aluminum, aluminum-magnesium alloy, aluminum-manganese alloy, aluminum-silicon alloy, and ferrous metal parts.
  • Spray passivation A colorless to light-colored corrosion-resistant passivation layer can be formed on the aluminum surface by spraying or immersion.
  • the film thickness is 0.5-5 ⁇ , which has good adsorption and is suitable as the bottom layer of the organic coating.
  • the film is crystalline, evenly distributed, and has good corrosion resistance. And the metal workpiece surface passivation treatment and the metal workpiece obtained after passivation treatment.
  • a silane passivating agent comprising the following components: 3-20 G/L alkyl phosphate, 0.2-4 G/L fluorozirconic acid, 0.
  • a metal workpiece surface passivation treatment comprising the steps of: formulating a silane passivating agent as described above; controlling the passivation solution to have a enthalpy value of 2-6, immersing the metal workpiece in the passivation solution After the predetermined daytime treatment, the metal workpiece is washed and dried. And a metal workpiece whose surface is passivated by a metal workpiece surface passivation film treatment method as described above.
  • the above silane passivating agent forms a passivation film on the surface of the metal, has good bonding ability with the paint film and has strong corrosion resistance, and the silane passivating agent is a better alternative to the traditional chromium-containing passivating agent, avoiding Heavy metals such as chromium produce environmental pollution and are a new type of material that is energy-saving, environmentally friendly and non-polluting.
  • Embodiments of the present invention provide a silane passivating agent comprising the following components, 3-20 G/L alkyl phosphate, 0.
  • the alkyl phosphate has a weight fraction of 5-15 G/L.
  • the fluorozirconic acid is 1-4 G/L by weight
  • the silica sol is 1-4 G/L by weight
  • the silane coupling agent is in parts by weight 3-
  • the pH of the silane passivating agent is 2.0-6.0
  • alkyl phosphate and fluorozirconic acid are main film-forming components, and a silane coupling agent or a silica sol is used as a filling and covering agent to increase the corrosion resistance of the passivated workpiece.
  • the embodiment of the present invention further provides a metal workpiece surface passivation film treatment, comprising the following steps: preparing a silane passivating agent as described above; pH value is controlled to 2.0-6.0; immersing the metal workpiece in the passivation solution After the predetermined daytime treatment, the metal workpiece is washed and dried.
  • the formation is a desired metal workpiece.
  • the metal workpiece is processed by forming the desired metal workpiece.
  • the spray or impregnation is between 2 and 10 minutes, and the spray pressure is between 0.8 and 1.2 kgf/cm 2 . If the enthalpy is deregulated, add the ammonia water and the silane passivator to adjust the pH to the above working range.
  • the silane passivating agent in the embodiment of the invention is a zirconium salt silane treating agent, no heavy metal, low-sludge, suitable for surface treatment and passivation before coating of steel, zinc and aluminum, and can replace phosphating solution and chromizing agent.
  • the silane passivating agent forms a pale yellow passivation film on the surface of the metal, which has a very good bonding ability with the painted paint film and strong corrosion resistance.
  • the passivation film treatment film can be matched to various types of coatings.
  • Embodiments of the present invention also provide a metal workpiece that is passivated by a metal workpiece surface passivating agent as described above to form a passivation of the surface of the metal workpiece.
  • the components were mixed in the following parts by weight: 3 parts of alkyl phosphate, 0.2 part of fluorozirconic acid, 0.2 part of silica sol, 1 part of silane coupling agent, and the balance of water.
  • Treatment method preparing the silane passivating agent as described above, stirring uniformly; PH value is controlled to 3-4; immersing the aluminum alloy workpiece in the passivation solution, treating the surface of the clean metal workpiece, after 10 minutes After processing
  • the ingredients were mixed in the following parts by weight: 6 parts of alkyl phosphate, 1 part of fluorozirconic acid, 1 part of silica sol, 3 parts of silane coupling agent, and the balance of water.
  • Treatment method preparing the silane passivating agent as described above, stirring uniformly; PH value is controlled to 3-4; immersing the aluminum alloy workpiece in the passivation solution, treating the surface of the clean metal workpiece, after 10 minutes After processing
  • the ingredients were mixed in the following parts by weight: 12 parts of alkyl phosphate, 2 parts of fluorozirconic acid, 3 parts of silica sol, 6 parts of silane coupling agent, and the balance of water.
  • Treatment method preparing the silane passivating agent as described above, stirring uniformly; PH value is controlled to 3-4; immersing the aluminum alloy workpiece in the passivation solution, treating the surface of the clean metal workpiece, after 10 minutes After processing
  • the components were mixed in the following parts by weight: 20 parts of alkyl phosphate, 4 parts of fluorozirconic acid, 4 parts of silica sol, 10 parts of silane coupling agent, and the balance of water.
  • Treatment method preparing the silane passivating agent as described above, stirring uniformly; PH value is controlled to 3-4; immersing the aluminum alloy workpiece in the passivation solution, treating the surface of the clean metal workpiece, after 10 minutes After processing

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

Cette invention concerne un agent de passivation à base de silane, une pièce de fabrication métallique et un procédé de traitement de passivation s'y rapportant. L'agent de passivation comprend de 3 à 20 G/L de phosphate d'alkyle, de 0,2 à 4 G/L d'acide hexafluorozirconique, de 0,2 à 5 G/L d'un sol de silicone, de 1 à 10 G/L d'un promoteur d'adhérence au silane, le reste étant de l'eau L'agent de passivation à base de silane forme un film de passivation sur la surface d'un métal, et ce film de passivation présente une bonne capacité d'adhésion à un film revêtu et similaire et une forte résistance à la corrosion.
PCT/CN2017/091315 2017-06-30 2017-06-30 Agent de passivation à base de silane, pièce de fabrication métallique et procédé de traitement de passivation pour celle-ci Ceased WO2019000451A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/091315 WO2019000451A1 (fr) 2017-06-30 2017-06-30 Agent de passivation à base de silane, pièce de fabrication métallique et procédé de traitement de passivation pour celle-ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/091315 WO2019000451A1 (fr) 2017-06-30 2017-06-30 Agent de passivation à base de silane, pièce de fabrication métallique et procédé de traitement de passivation pour celle-ci

Publications (1)

Publication Number Publication Date
WO2019000451A1 true WO2019000451A1 (fr) 2019-01-03

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PCT/CN2017/091315 Ceased WO2019000451A1 (fr) 2017-06-30 2017-06-30 Agent de passivation à base de silane, pièce de fabrication métallique et procédé de traitement de passivation pour celle-ci

Country Status (1)

Country Link
WO (1) WO2019000451A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111676472A (zh) * 2020-06-15 2020-09-18 武汉迪赛环保新材料股份有限公司 一种具有高耐蚀性能的批量热镀锌用无铬钝化剂
US20230018337A1 (en) * 2019-12-11 2023-01-19 Robert Bosch Gmbh Method for producing a diaphragm for an ultrasonic sensor, and diaphragm for an ultrasonic transducer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101158037A (zh) * 2007-11-07 2008-04-09 中南大学 冰箱、冰柜蒸发器用铝管的无铬钝化工艺及钝化液
CN101429661A (zh) * 2008-12-05 2009-05-13 常熟华冶薄板有限公司 连续热浸镀锌钢板用的钼酸盐钝化液
CN101775596A (zh) * 2010-04-06 2010-07-14 中南大学 一种冰箱、冰柜蒸发器用铝管无铬钝化方法及钝化液
US20140017409A1 (en) * 2011-03-30 2014-01-16 Mahindra & Mahindra Limited Corrosion resistance passivation formulation and process of preparation thereof
CN103966590A (zh) * 2014-04-02 2014-08-06 上海大学 单硅烷复合无铬钝化液及钝化镀锌钢丝表面镀层的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101158037A (zh) * 2007-11-07 2008-04-09 中南大学 冰箱、冰柜蒸发器用铝管的无铬钝化工艺及钝化液
CN101429661A (zh) * 2008-12-05 2009-05-13 常熟华冶薄板有限公司 连续热浸镀锌钢板用的钼酸盐钝化液
CN101775596A (zh) * 2010-04-06 2010-07-14 中南大学 一种冰箱、冰柜蒸发器用铝管无铬钝化方法及钝化液
US20140017409A1 (en) * 2011-03-30 2014-01-16 Mahindra & Mahindra Limited Corrosion resistance passivation formulation and process of preparation thereof
CN103966590A (zh) * 2014-04-02 2014-08-06 上海大学 单硅烷复合无铬钝化液及钝化镀锌钢丝表面镀层的方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230018337A1 (en) * 2019-12-11 2023-01-19 Robert Bosch Gmbh Method for producing a diaphragm for an ultrasonic sensor, and diaphragm for an ultrasonic transducer
CN111676472A (zh) * 2020-06-15 2020-09-18 武汉迪赛环保新材料股份有限公司 一种具有高耐蚀性能的批量热镀锌用无铬钝化剂
CN111676472B (zh) * 2020-06-15 2022-04-22 武汉迪赛环保新材料股份有限公司 一种具有高耐蚀性能的批量热镀锌用无铬钝化剂

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