CN112501666B - Treatment method of long-acting corrosion-resistant coating on surface of aluminum frame of solar component - Google Patents

Treatment method of long-acting corrosion-resistant coating on surface of aluminum frame of solar component Download PDF

Info

Publication number
CN112501666B
CN112501666B CN202011468311.2A CN202011468311A CN112501666B CN 112501666 B CN112501666 B CN 112501666B CN 202011468311 A CN202011468311 A CN 202011468311A CN 112501666 B CN112501666 B CN 112501666B
Authority
CN
China
Prior art keywords
micro
arc oxidation
aluminum frame
electrolyte
solar
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.)
Active
Application number
CN202011468311.2A
Other languages
Chinese (zh)
Other versions
CN112501666A (en
Inventor
蔡海龙
杨波
李洪涛
张文成
蒋百灵
鲍星毅
秦高梧
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.)
Jiangyin Micro Arc Metal Technology Co ltd
Jiangyin Metal Materials Innovation Research Institute Co ltd
Original Assignee
Jiangyin Micro Arc Metal Technology Co ltd
Jiangyin Metal Materials Innovation Research Institute 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 Jiangyin Micro Arc Metal Technology Co ltd, Jiangyin Metal Materials Innovation Research Institute Co ltd filed Critical Jiangyin Micro Arc Metal Technology Co ltd
Priority to CN202011468311.2A priority Critical patent/CN112501666B/en
Publication of CN112501666A publication Critical patent/CN112501666A/en
Application granted granted Critical
Publication of CN112501666B publication Critical patent/CN112501666B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
    • 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
    • C25D11/026—Anodisation with spark discharge
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

The invention disclosesA treatment method of a long-acting corrosion-resistant coating on the surface of an aluminum frame of a solar component specifically comprises the following steps: s1: preparing an electrolyte: preparing electrolyte proportionally from KOH and NaAlO 2 、Na 4 P 2 O 7 、MoS 2 Adding deionized water or distilled water for dissolving, and stirring uniformly to obtain micro-arc oxidation electrolyte; s2: micro-arc oxidation: placing the aluminum frame of the solar assembly on the anode of an electrolytic tank in a micro-arc oxidation system, adopting a stainless steel plate as a cathode, switching on a micro-arc oxidation power supply, controlling the power supply to output a positive pulse current of 5-10A/dm2, a negative pulse current of 2-5A/dm2, an output frequency of 500-1000HZ, a duty ratio of 5-10%, an oxidation time of 10-30min and maintaining the temperature of an electrolyte at 10-30 ℃ in the whole micro-arc oxidation process; s3: and (4) ultrasonic water washing. S4: and (5) drying.

Description

Treatment method of long-acting corrosion-resistant coating on surface of aluminum frame of solar component
Technical Field
The invention belongs to the technical field of new material manufacturing, and particularly relates to a method for processing a long-acting corrosion-resistant coating on the surface of an aluminum frame of a solar component.
Background
New energy power generation is always a field which is seriously considered by the nation, the solar power generation industry develops rapidly in the years, solar energy is clean energy, and the environment cannot be polluted in the process of converting the solar energy into electric energy. Therefore, photovoltaic power stations are constructed in large quantities in various places. Photovoltaic module products are also multiplied in demand, with the aluminum alloy frame of the solar panel also being part of the module. The solar frame is made of extruded aluminum profiles through surface treatment and deep processing. The frame requirement of the photovoltaic solar module is higher than that of a common aluminum alloy section, the average thickness of an oxide film of the common aluminum alloy section is 10 micrometers, and the frame of the photovoltaic module is 15 micrometers. The photovoltaic module frame is easily corroded in outdoor environment and severe weather for a long time.
At present, most of the surface treatment modes of the aluminum frame of the solar component adopt an anodic oxidation mode, and a composite electrophoresis mode is adopted in the aspect of solving the corrosion resistance, and a small amount of processes adopt powder spraying, PVDF and the like. On the premise of solving the problem of waste water and waste liquid discharge from the source, an environment-friendly surface treatment process is explored to replace the current traditional anodic oxidation process, and the subsequent development of the aluminum alloy surface treatment industry is greatly influenced. Compared with the anodic oxidation process, the electrolyte of the micro-arc oxidation process has the characteristics of high voltage and strong current, higher electric field intensity, higher current density, low bath solution sensitivity, higher working temperature, longer service cycle and the like, but the prepared coating has a place worth of improving the corrosion resistance.
In conclusion, the design of an industrial production method for preparing the long-acting corrosion-resistant coating on the surface is particularly important for the aluminum frame of the solar module. At present, no green and environment-friendly preparation method related to the long-acting corrosion-resistant coating on the surface of the aluminum frame of the solar component exists in China.
Disclosure of Invention
The invention aims to provide a treatment method of a long-acting corrosion-resistant coating on the surface of an aluminum frame of a solar component, and the produced micro-arc oxidation corrosion-resistant coating has the characteristics of strong corrosion resistance, good weather resistance, excellent decoration, salt mist protection, high wear resistance and the like.
In order to realize the technical effects, the technical scheme of the invention is as follows: a treatment method of a long-acting corrosion-resistant coating on the surface of an aluminum frame of a solar component specifically comprises the following steps:
s1: preparing an electrolyte:
preparing electrolyte proportionally from KOH and NaAlO 2 、Na 4 P 2 O 7 、MoS 2 Adding deionized water or distilled water for dissolving, wherein the concentration of KOH is more than or equal to 3g/L and less than or equal to 4g/L, and the concentration of NaAlO is more than or equal to 1g/L 2 The concentration of the (b) is less than or equal to 4g/L, na 4 P 2 O 7 The concentration of the (A) is 4-8g/L, and MoS is not less than 1g/L 2 The concentration of the micro-arc oxidation electrolyte is less than or equal to 5g/L, and the micro-arc oxidation electrolyte is obtained after uniform stirring;
s2: micro-arc oxidation:
placing the aluminum frame of the solar assembly on the anode of an electrolytic tank in a micro-arc oxidation system, adopting a stainless steel plate as a cathode, switching on a micro-arc oxidation power supply, controlling the power supply to output a positive pulse current of 5-10A/dm2, a negative pulse current of 2-5A/dm2, an output frequency of 500-1000HZ, a duty ratio of 5-10%, an oxidation time of 10-30min and maintaining the temperature of an electrolyte at 10-30 ℃ in the whole micro-arc oxidation process;
s3: and (5) washing the solar assembly aluminum frame subjected to micro-arc oxidation treatment in the step (S2) with ultrasonic water.
S4: and (4) taking out the solar assembly aluminum frame subjected to ultrasonic wave washing in the step (S3) and drying.
MoS2 is three crystal structures of tetragonal system with octahedral coordination, hexagonal symmetric system (2H) with molybdenum atom triangular prism coordination, and orthorhombic symmetric system (3R), of which the most stable and common state is the hexagonal symmetric structure. In the two-dimensional molybdenum disulfide structure, both a 1H structure with molybdenum atoms in trigonal-cylindrical coordination and a 1T configuration with octahedral coordination exist, and each Mo atom is combined with six S atoms of two interlayers through a covalent bond. And Na 4 P 2 O 7 Is a long chain structure with macromolecules, and can be hydrolyzed into disodium hydrogen phosphate in water. Has strong pH buffering property and has certain chelation effect on metal ions. This is in contrast to MoS 2 The combination of the 1T configuration of the octahedral coordination in the medium ensures that the macromolecular chain can wrap MoS well 2 Under the action of the electric field, the coating moves to the surface of the coating, so that the coating enters the molten aluminum oxide coating, is deposited in a discharge channel and is stored, the discharge channel is blocked, micropores on the surface of the coating are filled or blocked, and the problem that a corrosive medium enters a transmission channel of the coating is solved to a certain extent, and MoS (MoS) 2 Molecular layer andthe layers are combined by Van der Waals force, the acting force is small, and the slippage between the layers is easy to realize, so that the self-lubricating effect is achieved. So that the effect is greatly improved both in terms of corrosion resistance and in terms of wear resistance.
In a further improvement, in step S4, the solar module aluminum frame after ultrasonic wave water washing in step S3 is taken out and air-dried.
In a further improvement, in the step S3, the solar module aluminum frame after the micro-arc oxidation treatment in the step S2 is subjected to ultrasonic water washing for 3 minutes.
The invention has the advantages and beneficial effects that: compared with the prior solar component aluminum frame surface treatment technology (such as the processes of anodic oxidation, powder spraying, PVDF and the like), the method of the invention replaces the traditional long-flow anodic oxidation process with waste liquid discharge pressure, has no wastewater generation in the whole production process, is green, environment-friendly, safe, reliable and good in repeatability, and can realize the production of long-acting corrosion-resistant coatings with short flow, automation, low cost and large batch on the surface of the solar component aluminum frame; the method is expected to accelerate the wide application of the aluminum frame of the solar component in the corrosion resistant industry, promote the innovation and development of the surface treatment industry of the aluminum frame of the solar component and promote the transformation and upgrading of energy conservation and environmental protection and long-acting corrosion resistance in the manufacturing industry.
Drawings
FIG. 1 shows a real object after micro-arc oxidation treatment of an aluminum frame of a solar module;
FIG. 2 shows the surface morphology and the cross-sectional morphology of the SEM after the micro-arc oxidation treatment of the aluminum frame of the solar module.
Detailed Description
The following describes the embodiments of the present invention with reference to the drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
Step 1: preparing an electrolyte
Weighing a certain amount of KOH (3 g/L) and Na 4 P 2 O 7 （5g/L）、NaAlO 2 (2 g/L) is addedDissolving the micro-arc oxidation electrolyte in ionized water or distilled water, and uniformly stirring to obtain the micro-arc oxidation electrolyte;
step 2: micro-arc oxidation
Placing the aluminum frame of the solar assembly on the anode of an electrolytic tank in a micro-arc oxidation system, adopting a stainless steel plate as a cathode, switching on a micro-arc oxidation power supply, controlling the power supply to output a positive pulse current of 8A/dm2, a negative pulse current of 4A/dm2, an output frequency of 800HZ, a duty ratio of 5 percent, an oxidation time of 20min and maintaining the temperature of the electrolyte at 20 ℃ in the whole micro-arc oxidation process;
and step 3: and (3) washing the solar assembly aluminum frame subjected to micro-arc oxidation treatment in the step (2) for 3 minutes by ultrasonic waves.
And 4, step 4: and (4) taking out the solar module aluminum frame subjected to the ultrasonic water washing in the step (3) and air-drying.
The salt spray corrosion resistance (time) of the solar component aluminum frame surface protection corrosion-resistant functional coating produced by the embodiment is 1100h, and the wear resistance is excellent.
Example 2
Step 1: preparing an electrolyte
Weighing a certain amount of KOH (3 g/L) and Na 4 P 2 O 7 （5g/L）、NaAlO 2 （2g/L）、MoS 2 (1 g/L) adding deionized water or distilled water for dissolving, and uniformly stirring to obtain the micro-arc oxidation electrolyte;
and 2, step: micro-arc oxidation
Placing the aluminum frame of the solar assembly on the anode of an electrolytic tank in a micro-arc oxidation system, adopting a stainless steel plate as a cathode, switching on a micro-arc oxidation power supply, controlling the power supply to output a positive pulse current of 5A/dm2, a negative pulse current of 2A/dm2, an output frequency of 500HZ, a duty ratio of 10 percent, an oxidation time of 30min and maintaining the temperature of the electrolyte at 30 ℃ in the whole micro-arc oxidation process;
and step 3: and (3) washing the solar assembly aluminum frame subjected to micro-arc oxidation treatment in the step (2) for 3 minutes by ultrasonic waves.
And 4, step 4: and (4) taking out the solar module aluminum frame subjected to the ultrasonic water washing in the step (3) and air-drying.
The salt spray corrosion resistance (time) of the solar module aluminum frame surface protection corrosion-resistant functional coating produced by the embodiment is 800h, and the wear resistance is excellent.
Example 3
Step 1: preparing an electrolyte
Weighing a certain amount of KOH (3 g/L) and Na 4 P 2 O 7 （5g/L）、NaAlO 2 （2g/L）、MoS 2 (3 g/L) adding deionized water or distilled water for dissolving, and uniformly stirring to obtain the micro-arc oxidation electrolyte;
and 2, step: micro-arc oxidation
Placing the aluminum frame of the solar assembly on the anode of an electrolytic tank in a micro-arc oxidation system, adopting a stainless steel plate as a cathode, switching on a micro-arc oxidation power supply, controlling the power supply to output a positive pulse current of 10A/dm2, a negative pulse current of 5A/dm2, an output frequency of 1000HZ, a duty ratio of 20 percent, an oxidation time of 10min and maintaining the temperature of the electrolyte at 10 ℃ in the whole micro-arc oxidation process;
and 3, step 3: and (3) washing the solar assembly aluminum frame subjected to micro-arc oxidation treatment in the step (2) for 3 minutes by ultrasonic waves.
And 4, step 4: and (4) taking out the solar module aluminum frame subjected to the ultrasonic water washing in the step (3) and air-drying.
The salt spray corrosion resistance (time) of the solar module aluminum frame surface protection corrosion-resistant functional coating produced by the embodiment is 1200h, and the wear resistance is excellent.
Example 4
Step 1: preparing an electrolyte
Weighing a certain amount of KOH (3 g/L) and Na 4 P 2 O 7 （5g/L）、NaAlO 2 （2g/L）、MoS 2 (5 g/L) adding deionized water or distilled water for dissolving, and uniformly stirring to obtain the micro-arc oxidation electrolyte;
step 2: micro-arc oxidation
Placing the aluminum frame of the solar assembly on the anode of an electrolytic tank in a micro-arc oxidation system, adopting a stainless steel plate as a cathode, switching on a micro-arc oxidation power supply, controlling the power supply to output a positive pulse current of 6A/dm2, a negative pulse current of 3A/dm2, an output frequency of 600HZ, a duty ratio of 15 percent, an oxidation time of 20min and maintaining the temperature of the electrolyte at 20 ℃ in the whole micro-arc oxidation process;
and 3, step 3: and (3) washing the solar assembly aluminum frame subjected to micro-arc oxidation treatment in the step (2) for 3 minutes by ultrasonic waves.
And 4, step 4: and (4) taking out the solar module aluminum frame subjected to the ultrasonic water washing in the step (3) and air-drying.
The salt spray corrosion resistance (time) of the protective corrosion-resistant functional coating on the surface of the aluminum frame of the solar component produced by the embodiment is 950h, and the wear resistance is excellent.
Example 5
Step 1: preparing an electrolyte
Weighing a certain amount of KOH (3 g/L) and Na 4 P 2 O 7 （5g/L）、NaAlO 2 （4g/L）、MoS 2 (5 g/L) adding deionized water or distilled water for dissolving, and uniformly stirring to obtain the micro-arc oxidation electrolyte;
step 2: micro-arc oxidation
Placing the aluminum frame of the solar assembly on the anode of an electrolytic tank in a micro-arc oxidation system, adopting a stainless steel plate as a cathode, switching on a micro-arc oxidation power supply, controlling the power supply to output a positive pulse current of 10A/dm2, a negative pulse current of 3A/dm2, an output frequency of 800HZ, a duty ratio of 5 percent, an oxidation time of 20min and maintaining the temperature of the electrolyte at 20 ℃ in the whole micro-arc oxidation process;
and step 3: and (3) washing the aluminum frame of the solar assembly subjected to micro-arc oxidation treatment in the step (2) for 3 minutes by ultrasonic waves.
And 4, step 4: and (4) taking out the solar module aluminum frame subjected to the ultrasonic water washing in the step (3) and air-drying.
The salt spray corrosion resistance (time) of the solar module aluminum frame surface protection corrosion-resistant functional coating produced by the embodiment is 1000h, and the wear resistance is excellent.
As shown in the figures 1-2, the long-acting corrosion-resistant micro-arc oxidation coating on the surface of the aluminum frame of the solar component is uniform in whole, attractive and good in decoration. From the SEM cross-sectional morphology of FIG. 2, it can be seen that the coating is overall denser, the bonding state of the coating and the substrate is good, the thickness of the protective coating is about 20 μm, and the coating can be applied to the surface of the substrateThe base material is effectively protected and coated, the surface of the base material can show that the coating only has a small number of micron-sized blind holes, a compact and uniform barrier layer exists in the coating, the thickness of the barrier layer reaches 5-8 microns, and the base material is analyzed by XRD (X-ray diffraction) to determine that MoS (MoS) really exists in the phase composition in the coating 2 Phase of matter, and also associated with MoP 2 O 7 There is a possibility that the high temperature and high pressure generated at the moment of discharge react to deposit directly in the coating in which MoS is present 2 Can be up to 0.3% -0.8% of the total mass of the coating, and MoP 2 O 7 The method belongs to reaction deposition, the amount of substances is about 2-4%, holes on the surface of the coating are rich in aggregates, and the surface of the whole coating is flat and uniform. The barrier layer isolates direct contact of a corrosive medium and the base material to a certain extent, and the corrosion resistance of the frame of the aluminum alloy solar component is enhanced. Therefore, the protective anti-corrosion functional coating produced by the invention has the characteristics of good weather resistance, excellent decoration, good corrosion resistance, salt mist protection, high wear resistance and the like.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (3)

1. The treatment method of the long-acting corrosion-resistant coating on the surface of the aluminum frame of the solar component is characterized by comprising the following steps:
s1: preparing an electrolyte:
preparing electrolyte proportionally from KOH and NaAlO 2 、Na 4 P 2 O 7 、MoS 2 Adding deionized water or distilled water for dissolving, wherein the concentration of KOH is more than or equal to 3g/L and less than or equal to 4g/L, and the concentration of NaAlO2 is more than or equal to 3g/L and less than or equal to 4g/L, na 4 P 2 O 7 The concentration of the micro-arc oxidation electrolyte is 4-8g/L, the concentration of MoS2 is not more than 3g/L and not more than 5g/L, and the micro-arc oxidation electrolyte is obtained after uniform stirring;
s2: micro-arc oxidation:
placing the aluminum frame of the solar assembly on the anode of an electrolytic tank in a micro-arc oxidation system, adopting a stainless steel plate as a cathode, switching on a micro-arc oxidation power supply, controlling the power supply to output a positive pulse current of 5-10A/dm2, a negative pulse current of 2-5A/dm2, an output frequency of 500-1000HZ, a duty ratio of 5-10%, an oxidation time of 10-30min and maintaining the temperature of an electrolyte at 10-30 ℃ in the whole micro-arc oxidation process;
s3: washing the solar assembly aluminum frame subjected to micro-arc oxidation treatment in the step S2 by ultrasonic waves;
s4: and (4) taking out the solar assembly aluminum frame subjected to ultrasonic water washing in the step (S3) and drying by blowing.
2. The method for treating the long-acting corrosion-resistant coating on the surface of the aluminum frame of the solar module according to claim 1, wherein in the step S4, the aluminum frame of the solar module after ultrasonic wave water washing in the step S3 is taken out and air-dried.
3. The method for processing the long-acting corrosion-resistant coating on the surface of the aluminum frame of the solar component according to claim 1, wherein in the step S3, the aluminum frame of the solar component after the micro-arc oxidation treatment in the step S2 is subjected to ultrasonic water washing for 3 minutes.
CN202011468311.2A 2020-12-14 2020-12-14 Treatment method of long-acting corrosion-resistant coating on surface of aluminum frame of solar component Active CN112501666B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011468311.2A CN112501666B (en) 2020-12-14 2020-12-14 Treatment method of long-acting corrosion-resistant coating on surface of aluminum frame of solar component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011468311.2A CN112501666B (en) 2020-12-14 2020-12-14 Treatment method of long-acting corrosion-resistant coating on surface of aluminum frame of solar component

Publications (2)

Publication Number Publication Date
CN112501666A CN112501666A (en) 2021-03-16
CN112501666B true CN112501666B (en) 2022-10-14

Family

ID=74973055

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011468311.2A Active CN112501666B (en) 2020-12-14 2020-12-14 Treatment method of long-acting corrosion-resistant coating on surface of aluminum frame of solar component

Country Status (1)

Country Link
CN (1) CN112501666B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2952780B2 (en) * 2022-03-25 2024-04-15 Fund Tekniker ELECTROLYTE FOR OBTAINING ANTI-(TRIBO)CORROSION COATINGS ON THE SURFACE OF AN ALUMINUM AND SILICON ALLOY COMPONENT THROUGH PLASMA ELECTRO-OXIDATION

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021629A (en) * 2010-12-30 2011-04-20 南昌航空大学 Method for preparing titanium-alloy surface micro-arc oxidation antifriction compound film layer
TWI418664B (en) * 2011-11-04 2013-12-11 Taiwan Puritic Corp Surface processing method on valve metal using plasma electrolytic oxidation
CN106811784A (en) * 2017-01-23 2017-06-09 西安理工大学 A kind of preparation method of differential arc oxidation tungsten disulfide self-lubricating composite ceramic layer
CN108468075A (en) * 2018-03-27 2018-08-31 杭州电子科技大学 A kind of electrolyte and its application process of differential arc oxidation self-lubricating composite ceramic coating

Also Published As

Publication number Publication date
CN112501666A (en) 2021-03-16

Similar Documents

Publication Publication Date Title
CN102174704B (en) Preparation method for tantalum-contained interlayer metallic oxide electrode
CN107723712B (en) ZnIn for photoproduction cathodic protection2S4/TiO2Preparation method of nanotube composite film photo-anode
CN102586769B (en) A kind of phosphate-free metal surface treatment agent and using method thereof
CN101629287B (en) Magnesium alloy surface treatment process
CN103014804A (en) Aluminum alloy with army-green micro-arc oxidation ceramic membrane on surface and preparation method of aluminum alloy
CN112501666B (en) Treatment method of long-acting corrosion-resistant coating on surface of aluminum frame of solar component
CN101942655A (en) Preparation method of chromium-free passivated liquid and method for passivating electrogalvanizing or zinc alloy layer by same
CN1236109C (en) Electrochemical method for forming inorganic covering layer on surface of copper material
CN111005050B (en) Preparation method of double coating for improving corrosion resistance of sintered neodymium-iron-boron magnet
CN101054665A (en) Electrolytic zinc plating and zinc-iron alloy silicate cleaning deactivation liquid
CN103510135B (en) A kind of copper foil surface solidification treatment cerium salt composite additive, solid solution and application method thereof
CN103409785A (en) Preparation method of nano coating with reduced marine organism attachment on surface of titanium alloy
CN203007452U (en) Aluminum alloy with army green micro-arc oxidation ceramic membrane on surface
CN1048042C (en) Al-Ti alloy plating and making method thereof
CN1226467C (en) Method for micro-arc depositing ceramic layer onto positive and negative bipolarities on magnesium alloy
CN101435081B (en) No-voltage chemical membrane preparing and low voltage electrochemical membrane preparing combined process for magnesium alloy surface
CN1908245A (en) Titanium alloy anode oxidation technique based on ammonium tartrate system
CN206279277U (en) Preservative treatment and oxidation unit
CN113005496A (en) Surface treatment process for improving durability of aluminum alloy product
CN2748478Y (en) Device for quick production of anodic oxide film on aluminum hub
CN102586827A (en) Method for preparing tin-nickel alloy coating on surface of magnesium alloy
CN107043951A (en) A kind of anode oxidation method of aluminium lithium alloy product
CN209456597U (en) A kind of electrophoretic painting Special arc anode
CN110344095A (en) The preparation method and high strength alumin ium alloy workpiece of a kind of high strength alumin ium alloy anodic oxidation electrolyte and high strength alumin ium alloy anode oxide film
CN114197013B (en) Preparation method of silane/titanate double-coupling agent anti-corrosion coating

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant