CN107858555A - A kind of ocean engineering high-strength high Vulcan metal and preparation method thereof - Google Patents
A kind of ocean engineering high-strength high Vulcan metal and preparation method thereof Download PDFInfo
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- CN107858555A CN107858555A CN201711098252.2A CN201711098252A CN107858555A CN 107858555 A CN107858555 A CN 107858555A CN 201711098252 A CN201711098252 A CN 201711098252A CN 107858555 A CN107858555 A CN 107858555A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
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Abstract
The present invention relates to a kind of ocean engineering high-strength high Vulcan metal and preparation method thereof.The copper alloy is made up of the component of following weight percentage：Ni 6 12%, Al 1 7%, Fe 0.5 2.5%, Mn 0.5 2.5%, surplus are copper and inevitable impurity.The high-strength high Vulcan metal of ocean engineering provided by the invention, by microalloying means, more kinds of alloying elements of Ni, Al, Fe, Mn are added in Copper substrate, wherein Ni can improve the corrosion resisting property and yield strength of copper alloy, and Al can produce Ni with Ni3Al hardening constituents improve the mechanical property of alloy, and Fe and Mn improve the intensity and antiscour corrosive power of alloy, under the synergy of above-mentioned multiple element, not only increase the intensity of copper alloy, while the sea water corrosion resistant of alloy greatly improved.The copper alloy simplifies alloying element composition, reduces the usage amount of nickel, reduces production cost.
Description
Technical field
The invention belongs to copper alloy field, and in particular to a kind of ocean engineering high-strength high Vulcan metal and its preparation side
Method.
Background technology
Vulcan metal is because with the high coefficient of heat transfer, excellent anti-marine organisms adhesive ability and resistance to corrosion seawater
Can, sea water desalinating unit, Marine Steam Turbine condensation tracheae, petroleum refining unit and the strand electricity in Yu Haiyang engineering are answered extensively
Stand and the field such as the heat exchanger pipe of nuclear power plant.The Vulcan metal developed at present mainly has following several big types：
(1) it is known as aldubra, the one-ton brass of the title of " admirality brass ", such as HSn70-1, HSn60-1；(2) tin bronze, such as QSn4-4-
4th, QSn-5-5, QSn6-6-3 etc.；(3) Cu-Ni systems White brass alloy, such as B10 (Cu-10Ni-1Fe-1Mn), B30 (Cu-30Ni-
1Fe-lMn).However, under the complicated aggressive marine environment service condition such as high temperature, high humidity, high salt, high flow rate, traditional anti-corrosion copper
The mechanical property and corrosion resisting property of alloy are increasingly difficult to meet above-mentioned requirements.
Application publication number is that CN102352452A patent discloses a kind of corrosion resisting copper alloy material, and it is with copper zinc yellow
Copper alloy is matrix, by adding the elements such as zinc, aluminium, nickel, silicon, boron, manganese, rare earth, come reach improve alloy mechanical property and
The purpose of corrosion resisting property.
Existing Vulcan metal, alloying element composition is complicated, and contains rare earth element, causes alloy production cost high.
Therefore, a kind of high-strength height is anti-corrosion, inexpensive under harsh service condition new type corrosion resistant copper alloy is developed for China's ocean engineering
It is significant.
The content of the invention
It is an object of the invention to provide a kind of ocean engineering with high-strength high Vulcan metal, so as to solve existing copper alloy
Alloying element is complicated, the problem of production cost is high.
Second object of the present invention is to provide preparation method of the above-mentioned ocean engineering with high-strength high Vulcan metal.
To achieve the above object, the technical solution adopted in the present invention is：
A kind of high-strength high Vulcan metal of ocean engineering, is made up of the component of following weight percentage：Ni6-12%,
Al 1-7%, Fe 0.5-2.5%, Mn 0.5-2.5%, surplus are copper and inevitable impurity.
The high-strength high Vulcan metal of ocean engineering provided by the invention, by microalloying means, adds in Copper substrate
Add a variety of alloying elements such as nickel (Ni), aluminium (Al), iron (Fe), manganese (Mn), wherein Ni can improve copper alloy corrosion resisting property and
Yield strength, Al can produce Ni with Ni3Al hardening constituents improve the mechanical property of alloy, and Fe and Mn improve the intensity of alloy and resisted
Erosion corrosion ability, under the synergy of above-mentioned multiple element, the intensity of copper alloy is not only increased, greatly improved simultaneously
The sea water corrosion resistant of alloy.The copper alloy simplifies alloying element composition, reduces the usage amount of nickel, reduces and be produced into
This.
Preferably, the high-strength high Vulcan metal of above-mentioned ocean engineering, is made up of the component of following weight percentage：Ni
10%, Al 3%, Fe 1.5%, Mn 1.5%, surplus are copper and inevitable impurity.Impurity component C, S, P, Zn's always contains
Amount≤0.15%.Under above-mentioned preferably constitute, the production cost of alloy is low, and mechanical property and corrosion resisting property reach optimal.
The above-mentioned ocean engineering preparation method of high-strength high Vulcan metal, comprises the following steps：By metallic copper, metal
Nickel, copper and iron intermediate alloy, copper manganese intermediate alloy, metallic aluminium become in 1150~1250 DEG C of meltings, cast, then annealed and plasticity
Shape, produce.
The melting is carried out under micro-oxidizing atmosphere.The micro-oxidizing atmosphere is using wood in raw material heats fusion process
Charcoal covering melting liquid level, deoxidation is carried out during melting using deoxidier.Preferably, the deoxidier is magnesium, the dosage of deoxidier
For the 0.5%~1% of liquation gross weight.Stirred using graphite stirring rod in fusion process, skimmed with skimmer bar.Whole melting
Journey is carried out under micro-oxidizing atmosphere, and oxygen in melt can be made fully to be reacted all the time with charcoal and magnesium deoxidizer, is effectively reduced in melt
Gas content, improve the Forming Quality of alloy casting blank, and then improve follow-up sea water corrosion resistant.
The time of the melting is 30~50min.Under the smelting time, you can ensure that alloy has preferable mechanical property
Energy and corrosion resisting property.Metallic copper can use fine copper plate, and metallic nickel can use pure nickel plate, and metallic aluminium can use fine aluminium ingot.
Preferably, during melting, copper coin heating fusing is first added, nickel plate fusing is added after copper coin fusing, is then added
Copper and iron intermediate alloy and the fusing of copper manganese intermediate alloy, are eventually adding aluminium ingot fusing.Using above-mentioned charge melted process, can cause
First raise temperature melting high-melting-point alloy (copper coin, nickel plate, copper and iron intermediate alloy and copper manganese intermediate alloy), be eventually adding fusing point compared with
Low aluminium ingot, the scaling loss of element under high melt environment can be effectively reduced, ensure the stability of final actual constituent.
Temperature during cast is 1200~1300 DEG C.
The annealing is 4~10h of insulation at 600~900 DEG C.Handle, can promote in ingot casting through above-mentioned homogenizing annealing
Portion's composition is more uniform.Alloy after homogenizing annealing can further carry out the machining of circumference and bottom end face, and circumference machine adds
Work amount is unilateral 2~5mm, and end face amount of machining is 2~4mm；Then, the alloy after machining is put into sawing on sawing machine to remove
Ingot top rising head, the length amputated are the 1/5~1/3 of ingot casting total height.
The temperature of the plastic deformation is 850 DEG C~950 DEG C, and soaking time be 0.5~1.5h, deflection for 85%~
95%.Plastic deformation can use vertical extruder, horizontal extruder or free forging press.It can enter one by being plastically deformed process
Step improves ingot casting performance, improves interior tissue.
The copper coin is 1# electrolytic copper plates, Cu contents >=99.95wt.%；The nickel plate is 1# sheet nickels, Ni contents >=
99.96wt.%；Al >=99.0wt.% in the aluminium ingot.
The copper and iron intermediate alloy is Cu-10Fe intermediate alloys, and the copper manganese intermediate alloy is Cu-22Mn intermediate alloys.
The ocean engineering preparation method of high-strength high Vulcan metal of the present invention, passes through founding, homogenizing annealing, plasticity
Deformation process prepares copper alloy, and preparation technology is simple, and alloying component is uniform, and as cast condition defect is few；Gained copper alloy mechanical property is excellent
It is different, tensile strength >=600MPa, elongation percentage >=20%；Corrosion resisting property is excellent, corrosion rate≤0.01mm/a, and the copper alloy meets
The requirement of ocean engineering critical component under harsh service condition.
Embodiment
Embodiments of the present invention are described further with reference to specific embodiment.In following examples, 1# electrolysis
Cu contents >=99.95wt.% in copper coin；Ni contents >=99.96wt.% in 1# sheet nickels；Al content in aluminium ingot >=
99.0wt.%；Cu-10Fe intermediate alloys, Cu-22Mn intermediate alloys are commercial goods.
Embodiment 1
The high-strength high Vulcan metal of the ocean engineering of the present embodiment, is made up of the component of following weight percentage：Ni
10%, Al 3%, Fe 1.5%, Mn 1.5%, impurity component C, S, P, Zn total content≤0.15%, surplus Cu.
The ocean engineering of the present embodiment preparation method of high-strength high Vulcan metal, is concretely comprised the following steps：
1) 1# electrolytic copper plates, 1# sheet nickels, aluminium ingot, Cu-10Fe intermediate alloys and Cu-22Mn intermediate alloys are taken, through cutting out
Cut, dry and surface degreasing processing, it is stand-by；
2) 1# electrolytic copper plates are first added into smelting furnace by proportioning, heating melts 1# electrolytic copper plates, treats 1# electrolytic copper plates
1# sheet nickels are added after being completely melt, Cu-10Fe intermediate alloys and Cu-22Mn intermediate alloys is then added, is eventually adding
Aluminium ingot；Ensure that melting liquid level is completely covered by charcoal in fusion process is heated, it is empty to completely cut off the overwhelming majority by charcoal coating
Gas realizes that fusion process is carried out under micro-oxidizing atmosphere；Smelting temperature is 1200 DEG C, duration 40min, is during which used
Pure magnesium deoxidizer (99.85~99.95wt.% of content of magnesium) carries out deoxidation, and the dosage of deoxidier is the 0.5% of liquation gross weight,
Stirred using graphite stirring rod in fusion process, skimmed with skimmer bar；
3) liquation is pushed aside in standing 2 minutes after mirror-like after molten surface, liquation is directly poured into metal mold, poured
It is 1250 DEG C to note temperature, is cooled down afterwards, takes out, obtains copper alloy casting ingot；
4) copper alloy casting ingot is incubated 10h at 600 DEG C, afterwards air cooling, obtains homogenizing annealing ingot casting；Homogenization is moved back
Fiery ingot casting carries out the machining of circumference and bottom end face on engine lathe or numerically controlled lathe, and circumference amount of machining is unilateral 2mm,
End face amount of machining is 2mm；Then, the ingot casting after machining is put into sawing on sawing machine and removes ingot top rising head, amputated
Length is the 1/5 of ingot casting total height, obtains machining ingot casting；
5) machining ingot casting is plastically deformed by vertical extruder, plastic deformation temperatures are controlled at 850 DEG C, insulation
Time is 1.5h, and deformation amount controlling is 85%.
Embodiment 2
The high-strength high Vulcan metal of the ocean engineering of the present embodiment, is made up of the component of following weight percentage：Ni
10%, Al 1%, Fe 1.5%, Mn 1.5%, impurity component C, S, P, Zn total content≤0.15%, surplus Cu.
The ocean engineering of the present embodiment preparation method of high-strength high Vulcan metal, is concretely comprised the following steps：
1) 1# electrolytic copper plates, 1# sheet nickels, aluminium ingot, Cu-10Fe intermediate alloys and Cu-22Mn intermediate alloys are taken, through cutting out
Cut, dry and surface degreasing processing, it is stand-by；
2) 1# electrolytic copper plates are first added into smelting furnace by proportioning, heating melts 1# electrolytic copper plates, treats 1# electrolytic copper plates
1# sheet nickels are added after being completely melt, Cu-10Fe intermediate alloys and Cu-22Mn intermediate alloys is then added, is eventually adding
Aluminium ingot；Ensure that melting liquid level is completely covered by charcoal in fusion process is heated, it is empty to completely cut off the overwhelming majority by charcoal coating
Gas realizes that fusion process is carried out under micro-oxidizing atmosphere；Smelting temperature is 1150 DEG C, duration 50min, is during which used
Pure magnesium deoxidizer (99.85~99.95wt.% of content of magnesium) carries out deoxidation, and the dosage of deoxidier is the 0.8% of liquation gross weight,
Stirred using graphite stirring rod in fusion process, skimmed with skimmer bar；
3) liquation is pushed aside in standing 2 minutes after mirror-like after molten surface, liquation is directly poured into metal mold, poured
It is 1200 DEG C to note temperature, is cooled down afterwards, takes out, obtains copper alloy casting ingot；
4) copper alloy casting ingot is incubated 7h at 800 DEG C, afterwards air cooling, obtains homogenizing annealing ingot casting；Homogenization is moved back
Fiery ingot casting carries out the machining of circumference and bottom end face on engine lathe or numerically controlled lathe, and circumference amount of machining is unilateral 3mm,
End face amount of machining is 3mm；Then, the ingot casting after machining is put into sawing on sawing machine and removes ingot top rising head, amputated
Length is the 1/4 of ingot casting total height, obtains machining ingot casting；
5) machining ingot casting is plastically deformed by horizontal extruder, plastic deformation temperatures are controlled at 900 DEG C, insulation
Time is 1h, and deformation amount controlling is 90%.
Embodiment 3
The high-strength high Vulcan metal of the ocean engineering of the present embodiment, is made up of the component of following weight percentage：Ni
10%, Al 7%, Fe 1.5%, Mn 1.5%, impurity component C, S, P, Zn total content≤0.15%, surplus Cu.
The ocean engineering of the present embodiment preparation method of high-strength high Vulcan metal, is concretely comprised the following steps：
1) 1# electrolytic copper plates, 1# sheet nickels, aluminium ingot, Cu-10Fe intermediate alloys and Cu-22Mn intermediate alloys are taken, through cutting out
Cut, dry and surface degreasing processing, it is stand-by；
2) 1# electrolytic copper plates are first added into smelting furnace by proportioning, heating melts 1# electrolytic copper plates, treats 1# electrolytic copper plates
1# sheet nickels are added after being completely melt, Cu-10Fe intermediate alloys and Cu-22Mn intermediate alloys is then added, is eventually adding
Aluminium ingot；Ensure that melting liquid level is completely covered by charcoal in fusion process is heated, it is empty to completely cut off the overwhelming majority by charcoal coating
Gas realizes that fusion process is carried out under micro-oxidizing atmosphere；Smelting temperature is 1250 DEG C, duration 30min, is during which used
Pure magnesium deoxidizer (99.85~99.95wt.% of content of magnesium) carries out deoxidation, and the dosage of deoxidier is the 1.0% of liquation gross weight,
Stirred using graphite stirring rod in fusion process, skimmed with skimmer bar；
3) liquation is pushed aside in standing 3 minutes after mirror-like after molten surface, liquation is directly poured into metal mold, poured
It is 1300 DEG C to note temperature, is cooled down afterwards, takes out, obtains copper alloy casting ingot；
4) copper alloy casting ingot is incubated 4h at 900 DEG C, afterwards air cooling, obtains homogenizing annealing ingot casting；Homogenization is moved back
Fiery ingot casting carries out the machining of circumference and bottom end face on engine lathe or numerically controlled lathe, and circumference amount of machining is unilateral 5mm,
End face amount of machining is 4mm；Then, the ingot casting after machining is put into sawing on sawing machine and removes ingot top rising head, amputated
Length is the 1/3 of ingot casting total height, obtains machining ingot casting；
5) machining ingot casting is plastically deformed by free forging press, plastic deformation temperatures are controlled at 950 DEG C, insulation
Time is 0.5h, and deformation amount controlling is 95%.
Test example
The mechanical property and corrosion resisting property of the copper alloy of 1~embodiment of this test example detection embodiment 3, wherein corrosion resisting property
Detection by static water immersion test carry out, according to national standard JB/T 7901-2001《Metal material laboratory is equal
Even corrosion total immersion test method》, sample is processed into Ф 30mm × 2.0mm sizes in glassware, is suspended on the people of preparation
Immersion corrosion experiment is carried out in work seawater (pH value 8.0), etching time 240h, corrosion before and after test is weighed and counted
Calculate corrosion rate.Result of the test is as shown in table 1.
The performance test results of the copper alloy of the 1~embodiment of embodiment 3 of table 1
It is rotten by tensile strength >=600MPa of the copper alloy of the results showed that present invention of table 1, elongation percentage >=20%
Speed≤0.006mm/a is lost, while middle aluminium element (Al) content is relatively low, it is comprehensive on the basis of alloy is compared with low production cost
Can be excellent, meet the requirement of ocean engineering critical component under harsh service condition.
Claims (10)
1. the high-strength high Vulcan metal of a kind of ocean engineering, it is characterised in that be made up of the component of following weight percentage：
Ni 6-12%, Al 1-7%, Fe 0.5-2.5%, Mn 0.5-2.5%, surplus are copper and inevitable impurity.
2. the high-strength high Vulcan metal of ocean engineering as claimed in claim 1, it is characterised in that contained by following weight percent
The component composition of amount：Ni 10%, Al 3%, Fe 1.5%, Mn 1.5%, surplus are copper and inevitable impurity.
A kind of 3. preparation method of the high-strength high Vulcan metal of ocean engineering as claimed in claim 1, it is characterised in that bag
Include following steps：Metallic copper, metallic nickel, copper and iron intermediate alloy, copper manganese intermediate alloy, metallic aluminium is molten at 1150~1250 DEG C
Refining, cast, then annealed and plastic deformation, are produced.
4. the ocean engineering as claimed in claim 3 preparation method of high-strength high Vulcan metal, it is characterised in that described molten
Refining is carried out under micro-oxidizing atmosphere.
5. the ocean engineering as claimed in claim 4 preparation method of high-strength high Vulcan metal, it is characterised in that described micro-
Oxidizing atmosphere is to be taken off in raw material heats fusion process using charcoal covering melting liquid level during melting using deoxidier
Oxygen.
6. the ocean engineering as claimed in claim 5 preparation method of high-strength high Vulcan metal, it is characterised in that described de-
Oxygen agent is magnesium, and the dosage of deoxidier is the 0.5%~1% of liquation gross weight.
7. the ocean engineering as claimed in claim 3 preparation method of high-strength high Vulcan metal, it is characterised in that described molten
The time of refining is 30~50min.
8. the ocean engineering as claimed in claim 3 preparation method of high-strength high Vulcan metal, it is characterised in that during cast
Temperature be 1200~1300 DEG C.
9. the ocean engineering as claimed in claim 3 preparation method of high-strength high Vulcan metal, it is characterised in that described to move back
Fire is 4~10h of insulation at 600~900 DEG C.
10. the ocean engineering as claimed in claim 3 preparation method of high-strength high Vulcan metal, it is characterised in that described
The temperature of plastic deformation is 850 DEG C~950 DEG C, and soaking time is 0.5~1.5h, and deflection is 85%~95%.
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| CN201711098252.2A CN107858555A (en) | 2017-11-09 | 2017-11-09 | A kind of ocean engineering high-strength high Vulcan metal and preparation method thereof |
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| CN201711098252.2A CN107858555A (en) | 2017-11-09 | 2017-11-09 | A kind of ocean engineering high-strength high Vulcan metal and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112210691A (en) * | 2020-09-09 | 2021-01-12 | 西安工程大学 | Corrosion-resistant copper alloy and preparation method thereof |
| CN116043062A (en) * | 2023-02-01 | 2023-05-02 | 有研工程技术研究院有限公司 | S-resistant 2- High-strength B10 white copper alloy material corroded by environmental seawater and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116043062A (en) * | 2023-02-01 | 2023-05-02 | 有研工程技术研究院有限公司 | S-resistant 2- High-strength B10 white copper alloy material corroded by environmental seawater and preparation method thereof |
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