CN106086988A - A kind of laser melting coating closes the method for aluminium alloy anode oxide film - Google Patents

A kind of laser melting coating closes the method for aluminium alloy anode oxide film Download PDF

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Publication number
CN106086988A
CN106086988A CN201610645683.5A CN201610645683A CN106086988A CN 106086988 A CN106086988 A CN 106086988A CN 201610645683 A CN201610645683 A CN 201610645683A CN 106086988 A CN106086988 A CN 106086988A
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aluminium alloy
oxide film
anode oxide
alloy anode
laser melting
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CN201610645683.5A
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CN106086988B (en
Inventor
周圣丰
戴晓琴
王梅丰
雷剑波
郭津博
顾振杰
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Tianjin Polytechnic University
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Tianjin Polytechnic University
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • C25D11/246—Chemical after-treatment for sealing layers
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C22C30/04—Alloys containing less than 50% by weight of each constituent containing tin or lead
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0036—Matrix based on Al, Mg, Be or alloys thereof
    • 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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides

Abstract

A kind of laser melting coating closes the method for aluminium alloy anode oxide film, and the feature of the method is: aluminium alloy anode oxide film is cleaned in filling spirituous ultrasonic cleaner by (1)；(2) the cladding powder becoming particle diameter to be 2 ~ 10 microns dedicated aluminium alloy powder ball milling, then carries out Laser Cladding Treatment, it is achieved the closing of aluminium alloy anode oxide film in the closed chamber being filled with argon.The present invention uses special Al alloy powder, uses laser melting and coating technique to be melted, and after there is complicated metallurgical chemistry reaction, the cladding layer that rapid solidification is formed can be effectively sealing off aluminium alloy anode oxide film.Therefore, the method efficiency of the present invention is high, low cost, and the compactness that can enable aluminum alloy to anode oxide film brings up to more than 98%, thus is greatly enhanced the dicoration of aluminium alloy anode oxide film, corrosion resistance and service life.

Description

A kind of laser melting coating closes the method for aluminium alloy anode oxide film
Technical field
The invention belongs to material science and field of surface engineering technique, close aluminium alloy sun particularly to a kind of laser melting coating The method of pole oxide-film.
Background technology
Aluminium alloy has that density is little, intensity is high, easy processing, the advantage such as cheap, have quite varied at industrial circle Application.But, aluminium alloy easily corrodes when at acid-base solution or contacting with the metal of other high potentials, significantly limit Its range of application.Therefore, aluminium alloy is carried out surface process, improve its corrosion resisting property tool and be of great significance.
It is said that in general, aluminum alloy surface is carried out anodic oxidation and sealing treatment, it is possible not only to improve the decoration of aluminium alloy Property, pollution resistance and corrosion resistance, and certain functional of anode oxide film that aluminum alloy surface can be given.At present, aluminum is closed Gold anode oxide-film carries out the method for sealing treatment mainly to be had: high-temperature vapor is closed, with NiF2It is that main room temperature is closed, with chromium Hydrochlorate, silicate etc. are that main inorganic salt is closed, and utilizing stearic acid etc. is that main organic acid is closed.Although these methods are necessarily Positive pole oxidation film on aluminum alloy surface can be carried out sealing treatment in degree, but the working (machining) efficiency of these methods is on the low side, different There is environmental pollution in degree, and the closing membrane flexibility obtained is poor, sealing of hole rate is the highest causes aluminium alloy corrosion resistance poor Etc. problem.
Laser melting coating is a kind of new process for modifying surface, and it is by adding cladding material at substrate surface, and utilizes height The laser beam of energy density is allowed to rapid melting, and after laser beam flying, rapid solidification forms cladding layer, and the method has green The advantages such as environmental protection, automaticity material structure high, preparation are tiny and fine and close.But, use laser to cover dedicated aluminium alloy powder End is closed the method for aluminium alloy anode oxide film and be yet there are no document report.
Summary of the invention
It is an object of the invention to provide a kind of method that laser melting coating closes aluminium alloy anode oxide film.The present invention is this Sample realizes, and its method with step is:
(1) aluminium alloy anode oxide film is cleaned in filling spirituous ultrasonic cleaner；
(2) preparation of cladding powder: carry out mechanical alloying process in dedicated aluminium alloy powder is positioned over high energy ball mill, obtain Particle diameter is that 2 ~ 10 microns and thing are main by α-Al, Al mutually2The cladding powder that Cu forms with rich Sn；
(3) cladding powder is preset in aluminium alloy anode oxide film surface, in the closed chamber being filled with argon, carries out laser melting coating Process, it is achieved the closing of aluminium alloy anode oxide film.
The present invention is when carrying out described step (2), and the chemical composition of dedicated aluminium alloy powder is: Si 3.0 ~ 15.0 Wt.%, B 2.0 ~ 5.0 wt.%, CeO20.2 ~ 1.0 wt.%, Ni 0.5 ~ 1.8 wt.%, Cu 5.0 ~ 10.0 wt.%, Sn 15.0 ~ 30.0 wt.%, surplus is Al；Milling parameters is: rotating speed 400 ~ 450 revs/min, and the time is 10 ~ 15 hours, ball milling During to use the stainless steel ball of a diameter of 2 ~ 10mm, stainless steel ball be 8:1 with the mass ratio of dedicated aluminium alloy powder, use liquid Nitrogen is protected, and prevents dedicated aluminium alloy Powder Oxidation；
The present invention is when carrying out described step (3), and the pre-set thickness of cladding powder is 0.5 ~ 1.0mm；It is being filled with the close of argon Envelope indoor carry out the technological parameter of laser melting coating: semiconductor laser power 0.5 ~ 0.8kW, spot diameter 15mm × 5mm, sweep Retouch speed 300 ~ 480mm/min.
Compared with prior art, the invention have the advantage that employing laser melting coating based on dedicated aluminium alloy powder is closed The method of aluminium alloy anode oxide film belongs to green manufacture technology pollution-free, that automaticity is high, and efficiency is high, low cost, can So that the compactness of aluminium alloy anode oxide film brings up to more than 98%, thus it is greatly enhanced the dress of aluminium alloy anode oxide film Decorations property, corrosion resistance and service life.
Detailed description of the invention
Embodiment 1
Use laser melting and coating technique LY6 aluminium alloy anode oxide film is carried out sealing treatment, specimen size be 150mm × 80mm × 5 mm(length × width × heights), after testing: the porosity through the LY6 aluminium alloy anode oxide film of laser melting coating sealing treatment is less than 5%, specific implementation process is as follows:
(1) aluminium alloy anode oxide film is cleaned in filling spirituous ultrasonic cleaner；
(2) preparation of cladding powder: carry out mechanical alloying process in dedicated aluminium alloy powder is positioned over high energy ball mill, obtain Mean diameter to be about 2 microns and thing main by α-Al, Al mutually2The cladding powder that Cu forms with rich Sn；Dedicated aluminium alloy powder The chemical composition at end is: Si 3.0 ~ 15.0 wt.%, B 2.0 ~ 5.0 wt.%, CeO20.2 ~ 1.0 wt.%, Ni 0.5 ~ 1.8 Wt.%, Cu 5.0 ~ 10.0 wt.%, Sn 15.0 ~ 30.0 wt.%, surplus is Al；Milling parameters is: rotating speed 400 revs/min, Time is 15 hours, uses the stainless steel ball of a diameter of 2 ~ 10mm, stainless steel ball and dedicated aluminium alloy powder in mechanical milling process Mass ratio is 8:1, uses protection of liquid nitrogen, prevents dedicated aluminium alloy Powder Oxidation；
(3) cladding powder is preset in aluminium alloy anode oxide film surface, in the closed chamber being filled with argon, carries out laser melting coating Process, it is achieved the closing of aluminium alloy anode oxide film；The pre-set thickness of cladding powder is 0.5mm；It is being filled with the closed chamber of argon The technological parameter inside carrying out laser melting coating is: semiconductor laser power 0.5kW, spot diameter 15mm × 5mm, scanning speed 300mm/min。
Embodiment 2
Using laser melting and coating technique that 2A12 aluminium alloy anode oxide film is carried out sealing treatment, specimen size is 120mm × 60mm × 4mm(length × width × height), after testing: little through the porosity of the 2A12 aluminium alloy anode oxide film of laser melting coating sealing treatment In 3%, specific implementation process is as follows:
(1) aluminium alloy anode oxide film is cleaned in filling spirituous ultrasonic cleaner；
(2) preparation of cladding powder: carry out mechanical alloying process in dedicated aluminium alloy powder is positioned over high energy ball mill, obtain Mean diameter to be about 5 microns and thing main by α-Al, Al mutually2The cladding powder that Cu forms with rich Sn；Dedicated aluminium alloy powder The chemical composition at end is: Si 3.0 ~ 15.0 wt.%, B 2.0 ~ 5.0 wt.%, CeO20.2 ~ 1.0 wt.%, Ni 0.5 ~ 1.8 Wt.%, Cu 5.0 ~ 10.0 wt.%, Sn 15.0 ~ 30.0 wt.%, surplus is Al；Milling parameters is: rotating speed 420 revs/min, Time is 12 hours, uses the stainless steel ball of a diameter of 2 ~ 10mm, stainless steel ball and dedicated aluminium alloy powder in mechanical milling process Mass ratio is 8:1, uses protection of liquid nitrogen, prevents dedicated aluminium alloy Powder Oxidation；
(3) cladding powder is preset in aluminium alloy anode oxide film surface, in the closed chamber being filled with argon, carries out laser melting coating Process, it is achieved the closing of aluminium alloy anode oxide film；The pre-set thickness of cladding powder is 0.8mm；It is being filled with the closed chamber of argon The technological parameter inside carrying out laser melting coating is: semiconductor laser power 0.65kW, spot diameter 15mm × 5mm, scanning speed 400mm/min。
Embodiment 3
Use laser melting and coating technique ZAlCu5Mn aluminium alloy anode oxide film is carried out sealing treatment, specimen size be 100mm × 50mm × 3mm(length × width × height), after testing: through the ZAlCu5Mn aluminium alloy anode oxide film of laser melting coating sealing treatment Porosity is less than 2%, and specific implementation process is as follows:
(1) aluminium alloy anode oxide film is cleaned in filling spirituous ultrasonic cleaner；
(2) preparation of cladding powder: carry out mechanical alloying process in dedicated aluminium alloy powder is positioned over high energy ball mill, obtain Mean diameter to be about 10 microns and thing main by α-Al, Al mutually2The cladding powder that Cu forms with rich Sn；Dedicated aluminium alloy powder The chemical composition at end is: Si 3.0 ~ 15.0 wt.%, B 2.0 ~ 5.0 wt.%, CeO20.2 ~ 1.0 wt.%, Ni 0.5 ~ 1.8 Wt.%, Cu 5.0 ~ 10.0 wt.%, Sn 15.0 ~ 30.0 wt.%, surplus is Al；Milling parameters is: rotating speed 450 revs/min, Time is 10 hours, uses the stainless steel ball of a diameter of 2 ~ 10mm, stainless steel ball and dedicated aluminium alloy powder in mechanical milling process Mass ratio is 8:1, uses protection of liquid nitrogen, prevents dedicated aluminium alloy Powder Oxidation；
(3) cladding powder is preset in aluminium alloy anode oxide film surface, in the closed chamber being filled with argon, carries out laser melting coating Process, it is achieved the closing of aluminium alloy anode oxide film；The pre-set thickness of cladding powder is 1.0mm；It is being filled with the closed chamber of argon The technological parameter inside carrying out laser melting coating is: semiconductor laser power 0.8kW, spot diameter 15mm × 5 mm, scanning speed 480mm/min。

Claims (3)

1. the method that laser melting coating closes aluminium alloy anode oxide film, its method with step is:
(1) aluminium alloy anode oxide film is cleaned in filling spirituous ultrasonic cleaner；
(2) preparation of cladding powder: carry out mechanical alloying process in dedicated aluminium alloy powder is positioned over high energy ball mill, obtain Particle diameter is that 2 ~ 10 microns and thing are main by α-Al, Al mutually2The cladding powder that Cu forms with rich Sn；
(3) cladding powder is preset in aluminium alloy anode oxide film surface, in the closed chamber being filled with argon, then carries out laser Cladding processes, it is achieved the closing of aluminium alloy anode oxide film.
A kind of laser melting coating the most according to claim 1 closes the method for aluminium alloy anode oxide film, it is characterised in that: step Suddenly in (2), the chemical composition of dedicated aluminium alloy powder is: Si 3.0 ~ 15.0 wt.%, B 2.0 ~ 5.0 wt.%, CeO2 0.2~ 1.0 wt.%, Ni 0.5 ~ 1.8 wt.%, Cu 5.0 ~ 10.0 wt.%, Sn 15.0 ~ 30.0 wt.%, surplus is Al；Ball-milling technology Parameter is: rotating speed 400 ~ 450 revs/min, and the time is 10 ~ 15 hours, uses the stainless steel ball of a diameter of 2 ~ 10mm in mechanical milling process, Stainless steel ball is 8:1 with the mass ratio of dedicated aluminium alloy powder, uses protection of liquid nitrogen, prevents dedicated aluminium alloy in mechanical milling process Oxidation.
A kind of laser melting coating the most according to claim 1 closes the method for aluminium alloy anode oxide film, it is characterised in that: step Suddenly, in (3), the pre-set thickness of cladding powder is 0.5 ~ 1.0mm；The technological parameter of laser melting coating is: semiconductor laser power 0.5 ~ 0.8kW, spot diameter 15mm × 5mm, scanning speed 300 ~ 480mm/min.
CN201610645683.5A 2016-08-09 2016-08-09 A kind of method of laser melting coating closing aluminium alloy anode oxide film Expired - Fee Related CN106086988B (en)

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Cited By (4)

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CN107335937A (en) * 2017-07-28 2017-11-10 成都盘涅科技有限公司 The method of aluminium alloy electronic device of the manufacture with excellent packaging air tightness
CN107675176A (en) * 2017-08-21 2018-02-09 陕西天元智能再制造股份有限公司 The workpiece surface enhanced processing method that a kind of differential arc oxidation is combined with vacuum cladding
CN109161890A (en) * 2018-09-26 2019-01-08 广西大学 A kind of SiO2Differential arc oxidation composite coating and preparation method thereof
CN112458519A (en) * 2020-11-06 2021-03-09 安徽鑫发铝业有限公司 Preparation method of anti-corrosion electrophoresis extinction aluminum profile

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CN107675176A (en) * 2017-08-21 2018-02-09 陕西天元智能再制造股份有限公司 The workpiece surface enhanced processing method that a kind of differential arc oxidation is combined with vacuum cladding
CN107675176B (en) * 2017-08-21 2019-05-17 陕西天元智能再制造股份有限公司 A kind of workpiece surface enhanced processing method that differential arc oxidation is combined with vacuum cladding
CN109161890A (en) * 2018-09-26 2019-01-08 广西大学 A kind of SiO2Differential arc oxidation composite coating and preparation method thereof
CN109161890B (en) * 2018-09-26 2020-05-05 广西大学 SiO (silicon dioxide)2Micro-arc oxidation composite coating and preparation method thereof
CN112458519A (en) * 2020-11-06 2021-03-09 安徽鑫发铝业有限公司 Preparation method of anti-corrosion electrophoresis extinction aluminum profile

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