WO2017161582A1 - Agent de formation d'un film de matériau d'aluminium, matériau d'aluminium et procédé associé de traitement de formation d'un film de surface - Google Patents

Agent de formation d'un film de matériau d'aluminium, matériau d'aluminium et procédé associé de traitement de formation d'un film de surface Download PDF

Info

Publication number
WO2017161582A1
WO2017161582A1 PCT/CN2016/077420 CN2016077420W WO2017161582A1 WO 2017161582 A1 WO2017161582 A1 WO 2017161582A1 CN 2016077420 W CN2016077420 W CN 2016077420W WO 2017161582 A1 WO2017161582 A1 WO 2017161582A1
Authority
WO
WIPO (PCT)
Prior art keywords
aluminum
parts
aluminum material
film
coating agent
Prior art date
Application number
PCT/CN2016/077420
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/CN2016/077420 priority Critical patent/WO2017161582A1/fr
Publication of WO2017161582A1 publication Critical patent/WO2017161582A1/fr

Links

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
    • 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
    • C23C22/37—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 containing also hexavalent chromium compounds
    • C23C22/38—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 containing also hexavalent chromium compounds containing also phosphates

Definitions

  • the present invention relates to the field of metal surface treatment technology, and in particular, to an aluminum material coating agent, an aluminum material, and a surface filming treatment method thereof.
  • the surface treatment technology of the workpiece is usually applied.
  • the surface treatment of aluminum, iron and their alloys goes deep into all walks of life.
  • most of the work needs to be pretreated before surface treatment, for example, cleaning, decontamination and degreasing, and some applications of aluminum need to be filmed.
  • the filming treatment generally uses a filming agent to pretreat the aluminum material to form a film layer on the surface of the aluminum material for subsequent surface treatment, thereby increasing the adhesion and corrosion resistance of the subsequent film.
  • Traditional film treatment The traditional film is generally a golden aluminum film.
  • the corrosion resistance and adhesion of the film are very good, but the composition of the surface film of the workpiece is hexavalent chromium.
  • many products have environmental requirements, and the composition of the hexavalent chromium is obviously not Meet the requirements of safety and environmental protection.
  • an aluminum coating agent having good corrosion resistance and strong binding force and an aluminum surface coating treatment method and an aluminum material obtained by the film treatment are provided.
  • An aluminum coating agent for surface treatment of aluminum comprising 1000 parts by weight of the following components by weight: 350-500 parts of phosphoric acid, 60-120 parts of chromic anhydride, 2-4 Part of boric acid, 10-40 parts of ammonium hydrogen fluoride and the balance of water.
  • a method for processing a surface of an aluminum material comprising the steps of: formulating an aluminum coating agent as described above; dissolving the aluminum coating agent in water to prepare a coating agent solution, and coating the coating agent in the coating agent solution The mass percentage is 3-5%; the aluminum material is immersed in the film solution, and the total acidity of the film solution is controlled to be 25-55 pt. After the predetermined daytime treatment, the aluminum material is washed with water and dried. [0007] Also, an aluminum material having a surface having a film formed by a surface treatment method of an aluminum material as described above
  • the film formed by the above aluminum coating agent has good corrosion resistance and strong adhesion to the coating, and can be used as a good substrate for subsequent treatment such as spraying.
  • the film on the surface of the workpiece is mainly trivalent chromium, which is more environmentally friendly than the hexavalent, and the surface of the workpiece is bright.
  • An embodiment of the present invention provides an aluminum coating agent for surface pretreatment of aluminum, comprising 1000 parts by weight of the following components by weight: 350-500 parts of phosphoric acid, 60-120 parts of chromium Anhydride, 2-4 parts of boric acid, 10-40 parts of ammonium hydrogen fluoride and the balance water.
  • the parts by weight of the phosphoric acid are preferably from 350 to 400 parts by weight.
  • the parts by weight of the chromic anhydride are preferably from 60 to 100 parts by weight.
  • the proportion by weight of the boric acid is preferably 2-3 parts.
  • the parts by weight of the ammonium hydrogen fluoride are preferably 15 to 30 parts by weight.
  • the specific gravity of the coating agent is preferably 1.08 ⁇ 0.02 g / mL, and the pH is preferably 1.0 - 1.5.
  • a balance of the distribution ratios of the respective components is controlled to achieve a preferable film forming effect.
  • the proportion of chromic anhydride is too large, the ratio of phosphoric acid and ammonium hydrogen fluoride is low, the film formation is too slow and too thin, and even the film cannot be formed.
  • the reaction is too fast, resulting in film formation being too fast, and the newly formed film is dissolved again.
  • boric acid mainly plays a role in stabilizing the pH value, so that the pH value is controlled within the range of 1.0-1.5 to ensure a better film forming environment.
  • chromium in chromic anhydride is reduced from hexavalent to trivalent, thereby avoiding the presence of hexavalent chromium in the film, trivalent chromium is more environmentally friendly than hexavalent, and the surface of the workpiece is bright.
  • An embodiment of the present invention further provides a method for treating a surface of an aluminum material, comprising the steps of: preparing an aluminum coating agent as described above; dissolving the aluminum coating agent in water to prepare a coating agent solution, in the film The mass percentage of the film agent in the solution is 3-5%; the aluminum material is immersed in the film solution, and the total acidity of the film solution is controlled to be 25-55 pt. After the predetermined daytime treatment, the aluminum material is washed with water and dried.
  • the mass percentage of the coating agent in the coating agent solution is preferably 4%, and the total acidity of the coating solution is controlled to be 30-45 pt after the aluminum material is immersed in the coating agent solution.
  • Treatment of aluminum immersed in a coating agent solution The ratio is preferably from 3 to 10, most preferably 5 minutes, and the film thickness is formed to be about 0.1 to 1 ⁇ m.
  • Embodiments of the present invention also provide an aluminum material which is treated by a surface treatment method of an aluminum material as described above to form a film on the surface of the aluminum material.
  • the film protects the aluminum and is brightly colored.
  • the film agent of the present embodiment can be applied to other materials, for example, a surface treatment process which can be widely applied to parts of automobiles, furniture, electronic instruments, home appliances, CPU radiators, sports equipment, and the like, of course.
  • the aluminum article in these products can be treated with the film agent of this embodiment to form a film.
  • the ingredients were mixed in the following parts by weight: 350 parts of phosphoric acid, 60 parts of chromic anhydride, 2 parts of boric acid, 10 parts of ammonium hydrogen fluoride and 578 parts of water, stirred, uniformly mixed, and formulated into a filming agent.
  • treatment method preparing an aluminum film agent; dissolving the aluminum film agent in water to prepare a film agent solution, the film agent in the film agent solution content of 4% by mass; immersing the aluminum material in the film agent solution In the control solution, the total acidity of the solution is 25-55 pt. After the treatment at room temperature for 5 minutes, the aluminum material is washed with water and dried. During the treatment, a film agent can be added to ensure the effect of the working fluid. The film drying temperature should not be too high, should be controlled at about 80 degrees to prevent cracks in the film.
  • the components were mixed in the following parts by weight: 380 parts of phosphoric acid, 70 parts of chromic anhydride, 2 parts of boric acid, 12 parts of ammonium hydrogen fluoride and 536 parts of water, stirred, uniformly mixed, and formulated into a filming agent.
  • Treatment method preparing aluminum film agent; dissolving aluminum film agent in water to prepare a film agent solution, the film agent in the film agent solution is 5% by mass; immersing the aluminum material in the film agent solution In the control solution, the total acidity of the solution is 25-55 pt. After the treatment at room temperature for 5 minutes, the aluminum material is washed with water and dried.
  • Embodiment 3 The ingredients were mixed in the following parts by weight: 400 parts of phosphoric acid, 80 parts of chromic anhydride, 3 parts of boric acid, 15 parts of ammonium hydrogen fluoride and 502 parts of water, stirred, uniformly mixed, and formulated into a filming agent.
  • Treatment method preparing an aluminum film agent; dissolving the aluminum film agent in water to prepare a film agent solution, wherein the film agent has a mass percentage of 4% in the film agent solution; immersing the aluminum material in the film agent solution In the control solution, the total acidity of the solution is 25-55 pt. After the treatment at room temperature for 5 minutes, the aluminum material is washed with water and dried.
  • the ingredients were mixed in the following parts by weight: 450 parts of phosphoric acid, 100 parts of chromic anhydride, 3 parts of boric acid, 30 parts of ammonium hydrogen fluoride and 417 parts of water, stirred, uniformly mixed, and formulated into a filming agent.
  • Treatment method preparing an aluminum film agent; dissolving the aluminum film agent in water to prepare a film agent solution, the film agent in the film agent solution is 3% by mass; immersing the aluminum material in the film agent solution In the control, the total acidity of the coating agent solution is 25-55 pt. After the treatment at room temperature for 4 minutes, the aluminum material is washed with water and dried.
  • the ingredients were mixed in the following parts by weight: 500 parts of phosphoric acid, 120 parts of chromic anhydride, 4 parts of boric acid, 40 parts of ammonium hydrogen fluoride and 336 parts of water, stirred, uniformly mixed, and formulated into a filming agent.
  • Treatment method preparing an aluminum film agent; dissolving the aluminum film agent in water to prepare a film agent solution, the film agent in the film agent solution is 3% by mass; the aluminum material is immersed in the film agent solution The total acidity of the control film solution is 25-55 pt, and after washing at room temperature for 6 minutes, the aluminum material is washed with water and dried.

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

La présente invention concerne un agent de formation d'un film de matériau d'aluminium, utilisé pour effectuer un prétraitement de surface sur un matériau d'aluminium, qui comprend, sur la base de 1000 parties en poids, les composants suivants : de 350 à 500 parties d'acide phosphorique, de 60 à 120 parties d'anhydride chromique, de 2 à 4 parties d'acide borique, de 10 à 40 parties de bifluorure d'ammonium et le reste d'eau en parties en poids. L'invention concerne également un procédé de traitement de formation d'un film de surface pour le matériau d'aluminium, et le matériau d'aluminium formé au moyen dudit procédé de traitement de formation d'un film de surface pour le matériau d'aluminium.
PCT/CN2016/077420 2016-03-25 2016-03-25 Agent de formation d'un film de matériau d'aluminium, matériau d'aluminium et procédé associé de traitement de formation d'un film de surface WO2017161582A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/077420 WO2017161582A1 (fr) 2016-03-25 2016-03-25 Agent de formation d'un film de matériau d'aluminium, matériau d'aluminium et procédé associé de traitement de formation d'un film de surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/077420 WO2017161582A1 (fr) 2016-03-25 2016-03-25 Agent de formation d'un film de matériau d'aluminium, matériau d'aluminium et procédé associé de traitement de formation d'un film de surface

Publications (1)

Publication Number Publication Date
WO2017161582A1 true WO2017161582A1 (fr) 2017-09-28

Family

ID=59900977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/077420 WO2017161582A1 (fr) 2016-03-25 2016-03-25 Agent de formation d'un film de matériau d'aluminium, matériau d'aluminium et procédé associé de traitement de formation d'un film de surface

Country Status (1)

Country Link
WO (1) WO2017161582A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1039626A (zh) * 1989-06-30 1990-02-14 航空航天工业部第621研究所 一种铝及铝合金化学氧化的方法
EP0372915A1 (fr) * 1988-12-07 1990-06-13 Novamax Technologies Corporation Composition et procédé pour revêtir des surfaces métalliques
CN104498932A (zh) * 2014-12-21 2015-04-08 天津七六四通信导航技术有限公司 一种卫星导航接收机结构件的表面处理方法
CN104532223A (zh) * 2014-12-24 2015-04-22 重庆望江工业有限公司 一种合金铝发动机活塞的磷化用溶液

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0372915A1 (fr) * 1988-12-07 1990-06-13 Novamax Technologies Corporation Composition et procédé pour revêtir des surfaces métalliques
CN1039626A (zh) * 1989-06-30 1990-02-14 航空航天工业部第621研究所 一种铝及铝合金化学氧化的方法
CN104498932A (zh) * 2014-12-21 2015-04-08 天津七六四通信导航技术有限公司 一种卫星导航接收机结构件的表面处理方法
CN104532223A (zh) * 2014-12-24 2015-04-22 重庆望江工业有限公司 一种合金铝发动机活塞的磷化用溶液

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LI YI ET AL.: "CHAPTER THREE CHEMICAL OXIDATION OF METALS", TECHNOLOGY OF CONVERSION COATINGS ON METAL SURFACE, 30 April 2009 (2009-04-30), pages 134 *

Similar Documents

Publication Publication Date Title
WO2017214781A1 (fr) Agent de revêtement sans lavage et sans chrome, matériau d'aluminium et procédé de traitement de revêtement de surface de celui-ci
WO2018000233A1 (fr) Agent de passivation de matériau d'aluminium, matériau d'aluminium et procédé de traitement de passivation de sa surface
WO2017161582A1 (fr) Agent de formation d'un film de matériau d'aluminium, matériau d'aluminium et procédé associé de traitement de formation d'un film de surface
CN110809634A (zh) 钝化剂、金属工件及其表面钝化方法
WO2019006628A1 (fr) Agent de passivation sans chrome, pièce en aluminium et procédé de passivation de surface s'y rapportant
WO2019000448A1 (fr) Agent passivant en acier inoxydable et procédé de passivation de la surface d'une pièce en acier inoxydable
CN112725778A (zh) 无铬免洗皮膜剂、铝材及其表面皮膜化处理方法
WO2019006621A1 (fr) Agent de passivation, procédé de traitement de surface d'une pièce métallique et pièce métallique
JP6777377B2 (ja) 水溶性コーティング剤組成物
CN112647069A (zh) 环保型钛镧成膜剂、铝材及其表面皮膜化处理方法
CN110809635A (zh) 一种钝化剂、金属镀件表面处理方法和金属工件
CN112725782A (zh) 钴钛成膜剂、铝材及其表面皮膜化处理方法
WO2019006629A1 (fr) Agent de passivation sans chrome, produit d'aluminium et procédé de passivation de surface s'y rapportant
WO2019006622A1 (fr) Agent de passivation, pièce de fabrication métallique et procédé de traitement de passivation pour celle-ci
WO2019006625A1 (fr) Agent passivant exempt de chrome, pièce en aluminium et procédé de passivation de surface associé
WO2019006615A1 (fr) Agent passivant, pièce métallique et procédé de passivation de surface associé
WO2019006627A1 (fr) Agent de passivation sans chrome, pièce en aluminium et procédé de passivation de surface correspondant
WO2018218428A1 (fr) Agent de formation de film, composant métallique, et procédé de traitement de formation de film de surface associé
WO2019006676A1 (fr) Agent filmogène pour l'élimination d'huile, l'élimination de rouille et la phosphatation, élément en acier et en fer, et procédé de traitement filmogène associé
WO2019006626A1 (fr) Agent de passivation sans chrome, pièce de fabrication en aluminium et son procédé de passivation de surface
WO2019006624A1 (fr) Agent de passivation sans chrome, produit d'aluminium et son procédé de passivation de surface
WO2019006608A1 (fr) Agent de passivation, procédé de passivation de surface pour pièce métallisée et pièce métallique
CN112760625A (zh) 三价铬皮膜剂、铝材及其表面皮膜化处理方法
CN112760628A (zh) 钴锆钒环保成膜剂、铝材及其表面皮膜化处理方法
US2178977A (en) Surface treatment of magnesium and magnesium base alloys

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16894935

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16894935

Country of ref document: EP

Kind code of ref document: A1