CN101717879A - White copper alloy and preparation method thereof - Google Patents
White copper alloy and preparation method thereof Download PDFInfo
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- CN101717879A CN101717879A CN200910242632A CN200910242632A CN101717879A CN 101717879 A CN101717879 A CN 101717879A CN 200910242632 A CN200910242632 A CN 200910242632A CN 200910242632 A CN200910242632 A CN 200910242632A CN 101717879 A CN101717879 A CN 101717879A
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- 239000000956 alloy Substances 0.000 title claims abstract description 55
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 54
- 229910000570 Cupronickel Inorganic materials 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 14
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 238000003723 Smelting Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000006004 Quartz sand Substances 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 13
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 15
- 239000010949 copper Substances 0.000 abstract description 13
- 238000005266 casting Methods 0.000 abstract description 7
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 229910000906 Bronze Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000010974 bronze Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 27
- 238000005260 corrosion Methods 0.000 description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 239000011572 manganese Substances 0.000 description 10
- 239000011859 microparticle Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000012467 final product Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- 229910021538 borax Inorganic materials 0.000 description 3
- 238000007499 fusion processing Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000004328 sodium tetraborate Substances 0.000 description 3
- 235000010339 sodium tetraborate Nutrition 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Prevention Of Electric Corrosion (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a white copper alloy and a preparation method thereof, and belongs to the technical field of material engineering. The preparation method comprises the following steps: smelting less than or equal to 45 percent of Ni, less than or equal to 0.76 percent of Mn, less than or equal to 1 percent of Fe, less than or equal to 0.05 percent of Ce and 55 to 60 percent of Cu in percentage by weight in a medium frequency smelting furnace at the temperature of between 1,250 and 1,350 DEG C; and after each element is fully smelted, pouring alloy liquid into a wax mould, wrapping the wax die would by quartz sand during casting to perform heat insulation treatment, and cooling the alloy liquid to the room temperature. The white copper alloy prepared by the method comprises the following elements in percentage by weight: 39 percent of Ni, 1 percent of Fe, 0.76 percent of Mn, 0.02 percent of Ce and 59.22 percent of Cu. The white copper alloy prepared by the method has higher electrode potential, strength and toughness far superior to those of common aluminum bronze blade materials, high cavitation erosion resistance and very small noise.
Description
Technical field
A kind of copper-nickel alloy Alloy And Preparation Method, the particularly a kind of copper-nickel alloy of anti-cavitation corrosion Alloy And Preparation Method belongs to field of material engineering technology.
Background technology
Cavitation corrosion has been the not basic theory and the technical problem of fine solution since a century, and the breakthrough of its associated problem has important theory, economy and military significance.Cavitation corrosion often occurs on water conservancy machinery flow passage components, Hydraulic and Hydro-Power Engineering, high-speed bearing and the ship propeller, it is a kind of hydraulic phenomenon of very disruptive, be to cause the major cause that building is damaged in flow passage components and the water, the safety of serious threat engineering is carried out, and causes great financial loss simultaneously.Along with fluid machineries such as naval vessel, water turbine constantly develop to high speed, high-power direction, it is more outstanding that the cavitation corrosion problem becomes, and the anti-cavitation corrosion of material has been proposed requirements at the higher level.
Water screw oar material at present commonly used is mainly carbon steel, xantal and stainless steel etc., and actual use result shows that the anti-cavitation corrosion performance of these three kinds of materials all is not very good.The xantal material used of ship propeller particularly, its anti-cavitation corrosion performance is not fine, and it is bigger by noise that cavitation corrosion caused, is unfavorable in the water hidden.The designed alloy of anti-cavitation corrosion of this patent belongs to the copper-nickel alloy alloy series.
Traditional cavitation corrosion viewpoint thinks that it mainly is because the out-phase media such as air, steam micelle and solid particulate that exist in the real fluid can reduce the fluidic strength at break that the cavitation corrosion process takes place, thereby make swiftly flowing liquid be easy to generate cavitation, form cavity because of local pressure descends.After these cavitys enter people's fluidic high pressure area, be compressed and crumble and fall, just produce microjet or the shockwave that a kind of frequency is very high, pressure is very big and hit the surface of workpiece, and then produce so-called cavitation erosion.Different with traditional view, we have proposed some new views to the mechanism that cavitation corrosion takes place, cavitation corrosion will take place at first will have in the medium microparticle to exist, the cavitation corrosion phenomenon is the most serious when the size of microparticle reaches 1 micron left and right sides, excessive or the too small generation that all can not cause cavitation corrosion of particle size is even there is the existence of breaking of cavity or cavity.Independent cavity exists or breaks and can not cause the generation of cavitation corrosion in our the artificial medium, because independent cavity is that low pressure can not cause breaking of cavity to the low direction migration of pressure in medium.When having the microparticle of certain size in the medium; microparticle meeting and cavity integrator move along the flow velocity direction; cavity and particulate molectron will form whirlpool after the projection that runs into material surface; molectron can obtain the speed of a normal direction of material surface simultaneously; this speed is roughly 30 meter per seconds; when the molectron convergence is in material surface 100 nanometers; molectron and material surface form high-voltage field; this high-voltage field impels cavity collapse; break and cause the high speed microjet to carry the microparticle impact material surface secretly; this impact velocity can reach 3000 meter per seconds, thereby causes the generation of cavitation corrosion.And microparticle generally has electronegativity, the material electropotential is that just a large amount of negative charges can be adsorbed in its surface, the principle of repelling each other according to same sex electric charge, its speed will reduce greatly even oppositely move when microparticle arrives material surface, so just can alleviate the generation of material surface cavitation corrosion effectively.Designed its surface of high nickel-base alloy of this patent can spontaneously form the very fine and close passive film of one deck, this layer passive film can make the electropotential of matrix reach on the occasion of, so just meet anti-cavitation corrosion performance requriements.
Summary of the invention
The object of the present invention is to provide cupronickel alloy material of especially a kind of excellent performance of anti-cavitation corrosion of a kind of copper-nickel alloy alloy and preparation method thereof.
For achieving the above object, the preparation method that the present invention adopts is: weight percent is≤45% Ni ,≤0.76% Mn ,≤1% Fe, in≤0.05% Ce and 55～60% the Cu intermediate frequency (IF) smelting stove 1250～1350 ℃ of following meltings; Treat after each element fusing alloy liquid to be poured in the wax-pattern, and wax-pattern is incubated processing with the quartz sand parcel, be cooled to room temperature and get final product, casting gained alloy is incubated 5 hours under 1000 ℃～1050 ℃ in heat treatment furnace, carries out molten admittedly the processing.
The alloy of anti-cavitation corrosion that makes according to preparation method of the present invention contains weight percent and is: 39% Ni, 1% Fe, 0.76% Mn, 0.02% Ce and 59.22% Cu.
The present invention compared with prior art, have following high-lighting effect: the gained alloy substrate self has higher electropotential, need not adopt process for treating surface to handle; The gained alloy has higher intensity and toughness index.
Embodiment
The invention provides a kind of preparation method of the alloy of anti-the cavitation corrosion, its preparation method is as follows: purity is respectively 99.99% elements such as Ni, Cu, Fe, Mn and Ce and carries out melting according to 1250～1350 ℃ of designed prescriptions in the intermediate frequency (IF) smelting stove, adopt the way of smart casting to cast, in the casting cycle wax-pattern wrapped up in the high quartz sand hill and be incubated processing, be cooled to room temperature and get final product.Cast alloy is incubated 5 hours under 1000 ℃～1050 ℃ in heat treatment furnace, carry out molten admittedly the processing.
Alloy substrate is a copper, adds alloying elements such as nickel, iron, manganese and rare earth.The novel alloy of preparation belongs to copper base alloy, the very fine and close passive film of the spontaneous formation one deck of its surface meeting, and this layer passive film can significantly improve the surface electrical negativity of matrix alloy, improved its surface electrode current potential, thereby improved the ability of its anti-cavitation corrosion.
Several specific embodiments are provided below, and the present invention is further illustrated.
Embodiment 1
At first be: 40% Ni with weight percent, 1.5% Fe, 0.7% Mn 1300 ℃ of following meltings, adds 0.3% the P-Cu alloy and the borax of some amount and protects processing in 0.05% Ce and 57.75% the Cu intermediate frequency (IF) smelting stove in the fusion process; Treat after each element fully melts alloy liquid to be poured in the wax-pattern, wax-pattern is wrapped up in by the high quartz sand hill and is incubated processing in the casting cycle, is cooled to room temperature and gets final product.Cast alloy is incubated 5 hours under 1000 ℃ in heat treatment furnace, carry out molten admittedly the processing.The copper-nickel alloy alloy that makes according to the present embodiment preparation method contains weight percent and is: 39% Ni, 1% Fe, 0.76% Mn, 0.02% Ce and 59.22% Cu.
Embodiment 2
40% Ni, 1.5% Fe, 0.7% Mn 1350 ℃ of following meltings, adds 0.5% the P-Cu alloy and the borax of some amount and protects processing in 0.05% Ce and 57.75% the Cu intermediate frequency (IF) smelting stove in the fusion process; Treat after each element fully melts alloy liquid to be poured in the wax-pattern, wax-pattern is wrapped up in by the high quartz sand hill and is incubated processing in the casting cycle, is cooled to room temperature and gets final product.Cast alloy is incubated 5 hours under 1050 ℃ in heat treatment furnace, carry out molten admittedly the processing.The copper-nickel alloy alloy that makes according to the present embodiment preparation method contains weight percent and is: 38.5% Ni, 0.88% Fe, 0.67% Mn, 0.03% Ce and 59.92% Cu.
Embodiment 3
40% Ni, 1.5% Fe, 0.7% Mn 1280 ℃ of following meltings, adds 0.6% the P-Cu alloy and the borax of some amount and protects processing in 0.05% Ce and 57.75% the Cu intermediate frequency (IF) smelting stove in the fusion process; Treat after each element fully melts alloy liquid to be poured in the wax-pattern, wax-pattern is incubated processing by the quartz sand parcel in the casting cycle, is cooled to room temperature and gets final product.Cast alloy is incubated 5 hours under 1050 ℃ in heat treatment furnace, carry out molten admittedly the processing.The copper-nickel alloy alloy that makes according to the present embodiment preparation method contains weight percent and is: 39% Ni, 1% Fe, 0.6% Mn, 0.04% Ce and 59.35% Cu.
Because heavy addition nickel alloy element of the present invention has reached 710MPa through tensile strength of alloys after the heat treatment process, yield strength has reached 640MPa, and unit elongation has reached 26%.Cavitation corrosion in the actual environment for use and noise experiment result show that the cavitation corrosion phenomenon and the noise that change the novel alloy of anti-the cavitation corrosion reduce greatly.Show that this alloy can be used as a kind of alloy of anti-the cavitation corrosion and promoted.
Claims (2)
1. a copper-nickel alloy alloy is characterized in that, this copper-nickel alloy alloy contains weight percent and is: 39% Ni, 1% Fe, 0.76% Mn, 0.02% Ce and 59.22% Cu.
2. the preparation method of a copper-nickel alloy alloy is characterized in that, this method steps is as follows:
1) with weight percent be :≤45% Ni ,≤0.76% Mn ,≤1% Fe ,≤0.05% Ce and 55～60% Cu be 1250～1350 ℃ of following meltings in the intermediate frequency (IF) smelting stove;
2) treat after each element fusing alloy liquid to be poured in the wax-pattern, and wax-pattern is incubated processing with the quartz sand parcel, be cooled to room temperature, promptly obtain described copper-nickel alloy alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102426328A CN101717879B (en) | 2009-12-11 | 2009-12-11 | White copper alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102426328A CN101717879B (en) | 2009-12-11 | 2009-12-11 | White copper alloy and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101717879A true CN101717879A (en) | 2010-06-02 |
| CN101717879B CN101717879B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102426328A Expired - Fee Related CN101717879B (en) | 2009-12-11 | 2009-12-11 | White copper alloy and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101717879B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505075A (en) * | 2011-12-23 | 2012-06-20 | 安徽绿能技术研究院 | Method of producing copper alloy by utilizing copper clad aluminum scrap |
| CN102634691A (en) * | 2012-05-15 | 2012-08-15 | 沈阳难熔金属研究所 | High-strength and high-corrosion-resistance cupronickel alloy and manufacturing method thereof |
| CN106435259A (en) * | 2016-10-20 | 2017-02-22 | 江苏博迁新材料股份有限公司 | Copper-nickel alloy powder for ultralow-resistance chip resistor |
| CN114277281A (en) * | 2021-11-24 | 2022-04-05 | 宁波博威合金材料股份有限公司 | Easily-processed high-zinc cupronickel alloy and preparation method and application thereof |
-
2009
- 2009-12-11 CN CN2009102426328A patent/CN101717879B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505075A (en) * | 2011-12-23 | 2012-06-20 | 安徽绿能技术研究院 | Method of producing copper alloy by utilizing copper clad aluminum scrap |
| CN102634691A (en) * | 2012-05-15 | 2012-08-15 | 沈阳难熔金属研究所 | High-strength and high-corrosion-resistance cupronickel alloy and manufacturing method thereof |
| CN106435259A (en) * | 2016-10-20 | 2017-02-22 | 江苏博迁新材料股份有限公司 | Copper-nickel alloy powder for ultralow-resistance chip resistor |
| CN114277281A (en) * | 2021-11-24 | 2022-04-05 | 宁波博威合金材料股份有限公司 | Easily-processed high-zinc cupronickel alloy and preparation method and application thereof |
| CN114277281B (en) * | 2021-11-24 | 2022-09-13 | 宁波博威合金材料股份有限公司 | Easily-processed high-zinc cupronickel alloy and preparation method and application thereof |
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| Publication number | Publication date |
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| CN101717879B (en) | 2011-11-09 |
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Granted publication date: 20111109 Termination date: 20211211 |