CN101648273B - Method for preparing zinc-nickel alloy powder and application thereof - Google Patents

Method for preparing zinc-nickel alloy powder and application thereof Download PDF

Info

Publication number
CN101648273B
CN101648273B CN2009100639048A CN200910063904A CN101648273B CN 101648273 B CN101648273 B CN 101648273B CN 2009100639048 A CN2009100639048 A CN 2009100639048A CN 200910063904 A CN200910063904 A CN 200910063904A CN 101648273 B CN101648273 B CN 101648273B
Authority
CN
China
Prior art keywords
powder
zinc
nickel alloy
alloy powder
nickel
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.)
Expired - Fee Related
Application number
CN2009100639048A
Other languages
Chinese (zh)
Other versions
CN101648273A (en
Inventor
程旭东
张琦
孟令娟
肖巍
闵捷
叶菲
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.)
Wuhan University of Technology WUT
Original Assignee
Wuhan University of Technology WUT
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 Wuhan University of Technology WUT filed Critical Wuhan University of Technology WUT
Priority to CN2009100639048A priority Critical patent/CN101648273B/en
Publication of CN101648273A publication Critical patent/CN101648273A/en
Application granted granted Critical
Publication of CN101648273B publication Critical patent/CN101648273B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention relates to a method for preparing zinc-nickel alloy powder by a high-energy ball milling machine through alloying. The method comprises the following steps: putting 50-80% of zinc powder, 20-50% of nickel powder and a ball milling medium together into a ball milling tank according to the quality, carrying out ball milling in a wet method, obtaining slurry, then taking out the slurry, putting in vacuum, baking and forming a powder material used for spraying, or obtaining the zinc-nickel alloy powder with larger particle diameter after spraying and granulating the powder, wherein the sum of the raw materials of the zinc powder and the nickel powder is 100%. The zinc-nickel alloy powder prepared by the method can be used as a hot spraying material for a sticking bottom layer of an electric potential of an electrode for resisting sea water corrosion, or independently used as a hot spraying material for a cathode protection coating for use. Compared with a smelting atomization method, a low-pressure supersaturation method and an atomization method which are used for preparing the zinc-nickel alloy powder formerly, the invention has the advantages of less technological process, simple operation, low preparation cost, energy saving and the like and is suitable for the continuous scale industrial production.

Description

A kind of preparation method of zinc-nickel alloy powder and application thereof
Technical field
The present invention relates to the material field, particularly relate to a kind of preparation method and application thereof of zinc-nickel alloy powder.
Background technology
The corrosion of metal in adverse circumstances such as ocean is very serious, and boats and ships, ocean steel construction long term exposure are in hot and humid and salt mist environment, and corrosion failure is serious, and the fault of Yin Faing constitutes a serious threat to the performance of navigation safety and device thus.Wherein, electrochemical corrosion is to the destruction maximum of metal.The method that general electrochemically resistant corrosion is both at home and abroad generally adopted is that sacrificial anode or the negative electrode that adds cathode current protect.Promptly when the electrode potential of coating is lower than steel substrate, at first can be to the low coating of electrode potential through the row corrosion, thus metallic matrix is played a good protection.
It is lower than the electrode potential of iron and steel as a kind of cathodic protection layer for the admiro coating; when being in corrosive environment; at first the admiro coating is corroded; and the corrosion rate of admiro itself is slower more than 10 times than common iron and steel; therefore admiro is a kind of very excellent corrosion-resistant finishes; with the Ni-Al that generally uses; the alloy coat of Ni-Cr coating and zinc is compared; the admiro coating has lower electrode potential; and corrosion rate is lower; therefore, admiro is a kind of corrosion-resistant electronegative potential coating material of high-quality more.
The method for preparing zinc-nickel alloy powder both at home and abroad mainly contains following two kinds:
1. melting atomization, this method is by melting zinc-nickel molten metal, forms alloy by spray gun in spray chamber.
2. low pressure supersaturation atomization, this method need under low pressure atomize zinc-nickel supersaturation metal liquid under hydrogen and protection of nitrogen gas.
The drawback of above-mentioned two kinds of methods is that energy consumption is big, molten metal need be warming up to more than 1543 ℃; Adopt smelting process, link is dealt with improperly and is caused the powder oxidation easily; After adopting the powder spraying of low pressure supersaturation atomization preparation, easily form the micro cell in rich zinc district and rich nickel district, produce the microcell galvanic corrosion, be unfavorable for material protection; These two kinds of preparation method's complex process, and high-energy ball milling machinery alloyage process is compared relatively, and these two kinds of method flour extractions are comparatively low.
Summary of the invention
Technical problem to be solved by this invention is: a kind of preparation method who is suitable for the zinc-nickel alloy powder of large-scale industrial production is provided, the zinc-nickel alloy powder of this method preparation is low cost of manufacture not only, and is a kind of bonding primer of electrode potential that is suitable for the hot-spraying technique anti-seawater corrosion.
The present invention solves its technical problem and adopts following technical scheme:
The present invention utilizes high-energy ball milling machinery alloying to prepare zinc-nickel alloy powder, this method is: according to the quality meter, zinc powder 50~80% and nickel powder 20~50% are put into ball grinder with ball-milling medium to carry out wet ball grinding and obtains slip, these two kinds of raw metal powder sums are 100%, then slip is taken out and places under the vacuum and dry, again through mist projection granulating and after obtain zinc-nickel alloy powder.
The granularity of described zinc powder is 5~10 μ m, and the granularity of nickel powder is 6~10 μ m.
Described ball-milling medium can adopt absolute ethyl alcohol.
In mechanical milling process, its technology mainly comprises selection, rotational speed of ball-mill and the ball milling time etc. of protective atmosphere.Specifically: employing vacuumizes logical argon protection technology and carries out ball milling.Rotational speed of ball-mill is 350~450r/min, and the ball milling time is 80~100h.
Slip is made reunion powder through atomization drying in the mist projection granulating tower, temperature is 120~160 ℃ in the mist projection granulating tower.Reunion powder is sieved, obtain the powder that granularity is 10~50 μ m.
The zinc-nickel alloy powder of the present invention preparation, it is as the material of the bonding bottom thermal spraying of electrode potential of anti-seawater corrosion or use as the cathodic protection coatings thermal spraying material separately.
The present invention compared with prior art has following main advantage:
The material of the present invention's preparation is widely used, and is a kind of novel low electrode current potential material that is suitable for the hot-spraying technique anti-seawater corrosion.The zinc-nickel powder coating that the present invention is prepared, electrode potential is-760mv/ECS in the seawater medium, and the electrode potential pact-550mv/ECS of ordinary carbon steel, significantly be lower than the electrode potential of carbon steel, Ni-Cr, Ni-Al, the electrode potential of NiCrAlY based material are between-620~650mv/ECS, so the material of the present invention's preparation is a kind of coating material of real low electrode current potential.By salt fog B-117-85 test standard, can obtain the powder of the present invention's preparation, corrosion resistance and good, salt air corrosion through 1000h, more than the high 8MPa of strength of coating of the powder of this technology preparation than several adhesive linkage coating materials preparations commonly used (than the high 8MPa of Ni-Cr, than the high 7MPa of Ni-Al than the high 10MPa of NiCrAlY based material).
The zinc-nickel alloy powder of the present invention preparation, existing relatively two kinds prepare zinc-nickel alloy powder technology (melting atomization low pressure supersaturation atomization) to compare technological process few; Low cost of manufacture (more energy-conservation 40% than melting atomization approximately, lower more than 50%) than low pressure supersaturation atomization; And other two kinds of methods can not be used as large-scale industrial production, and high-energy ball milling is suitable for large-scale industrial production.
The specific embodiment
For a better understanding of the present invention, further illustrate content of the present invention, but content of the present invention not only is confined to the following examples below in conjunction with the specific embodiment row
Embodiment 1:
Batching: getting granularity is the Zn powder 200g of 5~10 μ m and the nickel powder 200g of 6~10 μ m, absolute ethyl alcohol 100ml, and ratio of grinding media to material is 20: 1, rotational speed of ball-mill is 350r/min, ball milling time 100h, preparation alloy powder.Get material in the vacuum glove box, oven dry.
Mist projection granulating: by the quality percentage, get material powder 98%, binding agent 2%, it is mixed the back add 80% the absolute ethyl alcohol that is equivalent to material powder and binding agent gross mass, be deployed into slip.Say that with the centrifugal atomizing nozzle slurry atomization becomes fine dropping liquid spray as in the granulation tower, the atomizer rotating speed is 1600~1800r/min.The dropping liquid of atomizing relies on the surface tension of self to be shrunk to spherical, in hot blast, be shrunk to spherical, temperature is controlled in 120~160 ℃ of scopes in the granulation tower, and the adjusting of temperature height is collected the reunion powder of drying by air exhauster subsequently so that the abundant drying of powder is exceeded.
Screening: mist projection granulating gained reunion powder sieves, the reunion powder of getting 10~50 μ m get final product low electrode current potential resistant material.
Embodiment 2:
Batching: getting granularity is the Zn powder 120g of 5~10 μ m and the nickel powder 33g of 6~10 μ m, absolute ethyl alcohol 50ml, and ratio of grinding media to material is 10: 1, rotational speed of ball-mill is 450r/min, ball milling time 80h, preparation alloy powder.Get material in the vacuum glove box, oven dry.
Mist projection granulating: by the quality percentage, get material powder 98%, binding agent 2%, it is mixed the back add 80% the absolute ethyl alcohol that is equivalent to material powder and binding agent gross mass, be deployed into slip.Say that with the centrifugal atomizing nozzle slurry atomization becomes fine dropping liquid spray as in the granulation tower, the atomizer rotating speed is 1600~1800r/min.The dropping liquid of atomizing relies on the surface tension of self to be shrunk to spherical, in hot blast, be shrunk to spherical, temperature is controlled in 120~160 ℃ of scopes in the granulation tower, and the adjusting of temperature height is collected the reunion powder of drying by air exhauster subsequently so that the abundant drying of powder is exceeded.
Screening: mist projection granulating gained reunion powder sieves, the reunion powder of getting 10~50 μ m get final product the corrosion-resistant sprayed on material of low electrode current potential.
Embodiment 3:
Batching: getting granularity is the Zn powder 120g of 5~10 μ m and the nickel powder 70g of 6~10 μ m, absolute ethyl alcohol 70ml, and ratio of grinding media to material is 20: 1, rotational speed of ball-mill is 450r/min, ball milling time 70h, preparation alloy powder.Get material in the vacuum glove box, oven dry.
Mist projection granulating: by the quality percentage, get material powder 98%, binding agent 2%, it is mixed the back add 80% the absolute ethyl alcohol that is equivalent to material powder and binding agent gross mass, be deployed into slip.Say that with the centrifugal atomizing nozzle slurry atomization becomes fine dropping liquid spray as in the granulation tower, the atomizer rotating speed is 1600~1800r/min.The dropping liquid of atomizing relies on the surface tension of self to be shrunk to spherical, in hot blast, be shrunk to spherical, temperature is controlled in 120~160 ℃ of scopes in the granulation tower, and the adjusting of temperature height is collected the reunion powder of drying by air exhauster subsequently so that the abundant drying of powder is exceeded.
Screening: mist projection granulating gained reunion powder sieves, the reunion powder of getting 10~50 μ m get final product the corrosion-resistant sprayed on material of low electrode current potential.
Embodiment 4:
Batching: getting granularity is the Zn powder 120g of 5~10 μ m and the nickel powder 70g of 6~10 μ m, absolute ethyl alcohol 70ml, and ratio of grinding media to material is 20: 1, rotational speed of ball-mill is 450r/min, ball milling time 70h, preparation alloy powder.Get material in the vacuum glove box, oven dry.
Screening: oven dry gained powder directly sieves, and the powder of getting particle diameter 1~3 μ m gets final product to such an extent that required low electrode current potential resistant material sprays.

Claims (5)

1. the preparation method of a zinc-nickel alloy powder, it is characterized in that utilizing high-energy ball milling machinery alloying to prepare zinc-nickel alloy powder, specifically: according to the quality meter, zinc powder 50~80% and nickel powder 20~50% are put into ball grinder with ball-milling medium to carry out wet ball grinding and obtains slip, these zinc powder nickel powder raw material sums are 100%, then slip is taken out and places under the vacuum and dry the powder that is formed for spraying; Or powder obtained the bigger zinc-nickel alloy powder of particle diameter again behind mist projection granulating;
The granularity of described zinc powder is 5~10 μ m, and the granularity of nickel powder is 6~10 μ m; Employing vacuumizes logical argon protection technology and carries out ball milling, and during ball milling, the rotational speed of ball-mill of employing is 350~450r/min, and the ball milling time is 80~100h.
2. the preparation method of zinc-nickel alloy powder according to claim 1 is characterized in that described ball-milling medium adopts absolute ethyl alcohol.
3. the preparation method of zinc-nickel alloy powder according to claim 1 is characterized in that slip is made reunion powder through atomization drying in the mist projection granulating tower, and temperature is 120~160 ℃ in the mist projection granulating tower.
4. the preparation method of zinc-nickel alloy powder according to claim 3 is characterized in that reunion powder is sieved, and obtains the powder that granularity is 1~50 μ m.
5. one kind according to the prepared zinc-nickel alloy powder of arbitrary claim in the claim 1 to 4, it is characterized in that this zinc-nickel alloy powder is as the material of the bonding bottom thermal spraying of electrode potential of anti-seawater corrosion or use as the cathodic protection coatings thermal spraying material separately.
CN2009100639048A 2009-09-08 2009-09-08 Method for preparing zinc-nickel alloy powder and application thereof Expired - Fee Related CN101648273B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100639048A CN101648273B (en) 2009-09-08 2009-09-08 Method for preparing zinc-nickel alloy powder and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100639048A CN101648273B (en) 2009-09-08 2009-09-08 Method for preparing zinc-nickel alloy powder and application thereof

Publications (2)

Publication Number Publication Date
CN101648273A CN101648273A (en) 2010-02-17
CN101648273B true CN101648273B (en) 2011-06-08

Family

ID=41670661

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009100639048A Expired - Fee Related CN101648273B (en) 2009-09-08 2009-09-08 Method for preparing zinc-nickel alloy powder and application thereof

Country Status (1)

Country Link
CN (1) CN101648273B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102214488A (en) * 2011-05-31 2011-10-12 航天材料及工艺研究所 Boron-carbide-containing graphite absorber ball and preparation process thereof
CN102424968B (en) * 2011-11-22 2013-10-16 中国航空工业集团公司北京航空材料研究院 Method for anticorrosion protective coating for high-strength steel
CN102775826A (en) * 2012-08-10 2012-11-14 昆山乔锐金属制品有限公司 Zinc-nickel coating material of ferrous products
CN103147034A (en) * 2013-03-21 2013-06-12 齐齐哈尔大学 Preparation method of metal/modified basalt composite powder used for thermal spraying technology
CN105583403B (en) * 2016-01-21 2017-10-20 中核(天津)科技发展有限公司 A kind of method of granulating of corronil powder
CN106270486B (en) * 2016-08-30 2018-07-10 安徽克里斯特新材料有限公司 A kind of preparation method of the bis- particle powders of Ni-Al
CN106735256B (en) * 2016-12-05 2019-01-29 四川理工学院 A kind of Ni nanoparticle-Zn powder and preparation method thereof
CN108726581B (en) * 2018-06-06 2020-05-19 江西理工大学 Method for preparing nickel-iron oxide by using Ni-Fe alloy melt

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915906A (en) * 1988-06-17 1990-04-10 Canadian Patents And Development Limited/Societie Canadienne Des Brevets Et D'exploitation Limitee Novel zinc-based alloys, preparation and use thereof for producing thermal-sprayed coatings having improved corrosion resistance and adherence

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915906A (en) * 1988-06-17 1990-04-10 Canadian Patents And Development Limited/Societie Canadienne Des Brevets Et D'exploitation Limitee Novel zinc-based alloys, preparation and use thereof for producing thermal-sprayed coatings having improved corrosion resistance and adherence

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
全红烨等.ZnNi合金用作热喷涂防腐蚀涂层材料.《材料保护》.2000,第33卷(第2期),47-48. *

Also Published As

Publication number Publication date
CN101648273A (en) 2010-02-17

Similar Documents

Publication Publication Date Title
CN101648273B (en) Method for preparing zinc-nickel alloy powder and application thereof
CN102676971B (en) Preparation method for composite coating of outer surface of nodular cast iron pipe
CN105039964A (en) Surface corrosion-resistant and abrasion-resistant composite coating for magnesium alloy and preparation method of surface corrosion-resistant and abrasion-resistant composite coating
CN105441857A (en) Method for carrying out high velocity oxy-fuel spraying on surface of roller of lithium battery pole piece rolling machine
CN103538314B (en) A kind of novel high impact toughness amorphous base composite coating and preparation method thereof
CN105648296B (en) A kind of high temperature resistance tungsten carbide-base metal-ceramic composite powder end, coating and its preparation process containing Re
CN101122019A (en) Metal thermal spraying and powder coating electrostatic spraying composite coat antiseptic technique
CN104561877A (en) Thermal spraying nickel-based self-fused alloy amorphous coating
CN102828137A (en) High-temperature alloy surface nanometer composite coating and preparation method thereof
CN109778105A (en) A kind of amorphous composite coating and preparation method thereof
CN102115836B (en) High-temperature protective coating of MCrAlY alloy system and preparation method
CN103725945A (en) High hardness tungsten carbide base wear-resistant coating material and preparation method thereof
CN101353797B (en) High-power arc spraying zinc aluminum pseudo-alloy protecting film and spraying method thereof
CN102162079A (en) Low-oxygen-content and high-yield spherical aluminum bronze alloy powder for thermal spraying and preparation method thereof
CN103981479B (en) Hot-spraying technique anticorrosion application in the power-generating member of wind-driven generator
CN104372284A (en) Preparation method of plasma sprayed TiN coating layer having relatively good hardness and toughness
CN109097771B (en) Plasma-fused copper-based shape memory alloy cavitation-corrosion-resistant coating and preparation method thereof
CN104152839A (en) Nickel-coated graphite coating based on titanium alloy surface thermal spraying
CN106065846A (en) A kind of corrosion-resistant blade of wind-driven generator and process of surface treatment
CN105463443B (en) A kind of marine drilling platform corrosion resistant coating production
CN105088122B (en) The Ni Al of Mg alloy surface2O3‑AlB12The preparation method of composite coating
CN106493373B (en) A kind of method that dry ice explosion prepares phosphorus zinc flake
CN102492915A (en) Nickel and aluminum composite wire and preparation method thereof
CN110629153A (en) Preparation method of graphene nanosheet/amorphous iron-based composite coating
CN102071388A (en) Method for preparing anticorrosive coating for magnesium and lithium alloy

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110608

Termination date: 20130908