CN105908014B - A kind of copper alloy of seawater corrosion resistance and preparation method thereof - Google Patents
A kind of copper alloy of seawater corrosion resistance and preparation method thereof Download PDFInfo
- Publication number
- CN105908014B CN105908014B CN201610400674.XA CN201610400674A CN105908014B CN 105908014 B CN105908014 B CN 105908014B CN 201610400674 A CN201610400674 A CN 201610400674A CN 105908014 B CN105908014 B CN 105908014B
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- corrosion resistance
- copper alloy
- seawater corrosion
- alloy
- seawater
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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
- C22C9/04—Alloys based on copper with zinc 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
A kind of copper alloy of seawater corrosion resistance of the present invention, each composition and its mass percent are：Cu66 75%, Al0.1 0.8%, Sn0.01 0.2%, Ni 0.01 0.2%, Fe 0.5 1.5%, Y 0.001 0.2%, surplus are Zn, and what is obtained after melting is organized as single-phase α phases.The preparation method of the copper alloy of above-mentioned seawater corrosion resistance is additionally provided, each reactive material is weighed according to mass percent, wherein Cu, Al, Sn, Ni, Fe, Zn is simple substance, and Y is Cu Y intermediate alloys；Above-mentioned material is added in reaction vessel, is the copper alloy of seawater corrosion resistance after cooling using 1000 ~ 1200 DEG C of temperature melting 2 ~ 5 hours.The copper alloy sea water resistance long-term corrosion of the seawater corrosion resistance of the present invention, the alloying element content of addition is few, and the good processability of alloy, material good moldability, cost is very low.
Description
Technical field
The invention belongs to field of metallurgy, be related to a kind of alloy, specifically a kind of copper alloy of seawater corrosion resistance and its
Preparation method.
Background technology
One-ton brass has good mechanical property and decay resistance, right especially with very excellent decay resistance
Seawater, fresh water all show great corrosion stability, the title for having " admirality brass ", thus be widely applied to Yu Haiyang cultivation,
The fields such as chemical industry, electrician, electric power, navigation, underwater ordnance, heat exchanger, nuclear power station.But stanniferous amount is excessive in one-ton brass, meeting
Low-alloyed plasticity drops, and alloy has stress-corrosion cracking tendency.Very little, decay resistance is again poor for stanniferous amount.In order to improve
The anti-corrosion capability of one-ton brass, often with the addition of a small amount of arsenic in brass（As）Element, such as traditional one-ton brass HSn70-1, but
It is that arsenic has severe toxicity, environment structure is threatened, and its corrosion resisting property can not meet the demand of modern every profession and trade, how choose conjunction
Suitable Theil indices, add suitable alloying element so that tin-brass alloy both seawater corrosion resistance, while having certain mechanicalness
Stress corrosion fracture can not occur when using in order to process, it is impossible to there are toxic elements such as lead, arsenic etc., as in global range
Heat subject.
Patent（Publication number CN200580026908.9）There is provided a kind of improved one-ton brass material, composition range is 62-
91% Cu, 0.01-4% Sn, surplus is Zn, and addition alloying element has As, Sb, Mg, P combination either combination such as Mn, Si, Ni,
It is simultaneously strict to limit such as Fe impurity contents.Addition 0.02-0.25% mass is employed in the corrosion resistance of brass, alloy to improve
The As of percentage or other elements, actually still continue to use the route for adding As, while collocation adds of a relatively high other members
The corrosion resisting property of material, the problem of not being fully solved poisonous As elements are usually improved, while being difficult to avoid in being smelted to brass
Iron tramp content limited, add the cost of melting.
Patent application（Application number 201410194408.7）Propose to use a kind of fishing net inhibited brass material, specific composition
For：Cu58-75%、Sn0.4-1.8%、Si0.2-0.5%、Bi0.2-0.5%、Pb ≤ 0.004%、Fe ≤ 0.003%、Cd ≤
0.0005%th, surplus is Zn.To improve the corrosion resistance of brass, addition Bi and Sn elements are mainly taken, while strictly in limitation brass
The content of iron and lead improves the corrosion proof purpose of brass.But Bi is added in brass can increase the fragility of material so that material
Processing characteristics deteriorates；And Sn contents height can then increase material cost, poor processability.
The content of the invention
For above-mentioned technical problem of the prior art, the invention provides a kind of copper alloy of seawater corrosion resistance and its system
Preparation Method, the described copper alloy of this seawater corrosion resistance and preparation method thereof will solve seawater of the prior art and be closed with anti-corrosion
Golden corrosion resistance is not good, processing difficulties technical problems.
The invention provides a kind of copper alloy of seawater corrosion resistance, the mass percent of each component is as follows：
Cu 66-75%,
Al 0.1-0.8%,
Sn 0.01-0.2%,
Ni 0.01-0.2%,
Fe 0.5-1.5%,
Y 0.001-0.2%,
Zn surpluses；The copper alloy obtained after melting is organized as single-phase α phases.
Further, the mass percent of each component of the copper alloy of described seawater corrosion resistance is as follows：
Cu 70%,
Al 0.6%,
Sn 0.1%,
Ni 0.1%,
Y 0.05%,
Fe 0.6%,
The copper alloy obtained after Zn surpluses, melting is organized as single-phase α phases.
Further, Ni and Sn mass percent meets following relation and is in the copper alloy compositions of the seawater corrosion resistance
Most preferably：[Sn]/[Ni]=0.90~1.2.
Present invention also offers a kind of preparation method of the copper alloy of above-mentioned seawater corrosion resistance, comprise the following steps：
1）Each reactive material is weighed according to mass percent, wherein Cu, Al, Sn, Ni, Fe, Zn is simple substance, and Y is Cu-Y
Intermediate alloy；
2）Above-mentioned material is added in reaction vessel, using 1000 ~ 1200 DEG C of temperature melting 2 ~ 5 hours, cooling
It is the copper alloy of seawater corrosion resistance afterwards.
The present invention is designed by microalloying, that is, adds micro Y, and appropriate cooperation is carried out to Sn, Ni content, is being reduced
In alloy while Sn contents, a small amount of Al of addition and control are organized as single-phase α phases, and alloy seawater corrosion resistance is improved to reach
Purpose；Simultaneously because the alloying element content added is few, the good processability of alloy does not result in material processing difficulties；It is right
Inevitable impurity F e is utilized in alloy, and the corrosion resistance of alloy is added on the contrary；The alloying element of selection is low cost
Al, Fe, Ni etc., cost is very low；Poisonous Element Lead, arsenic are free of in alloy, pollution will not be brought to environment.The present invention was both improved
The corrosion resistance of brass material, while do not damage the other performance of brass.
The present invention is compared with prior art, and its technological progress is significant.The present invention is a kind of inexpensive suitable ocean
The inhibited brass material of engineering, is especially adapted for use in seawater and encloses and grow fishing net use, by Alloying Design, both improve alloy
Resistance to corrosion seawater, while having the advantages that intensity height, good processability, sea water resistance wash away.
Embodiment
Explanation is further explained to the present invention with reference to specific embodiment, it will help to the further reason of the present invention
Solution, protection scope of the present invention is not limited to the examples, and protection scope of the present invention is defined by the claims.
Embodiment 1
Dispensing：Seawater corrosion resistance and the Cu alloy material washed away, each composition and its quality percentage that its component prescription is included
Than controlling in Cu70%, Al 0.6%, Sn 0.1%, Ni 0.1%, Y 0.05%, Fe 0.6%, surplus is Zn.Cu used during melting,
Al, Sn, Ni, Fe, Zn are simple substance simple metal, and Y is added with Cu-10%Y intermediate alloys.What is obtained after melting is organized as α phases.Prepare
Its intensity of obtained brass alloy material is more than 20% more than 450MPa, hardness HB 110, elongation percentage, in the seawater corrosion rate
For 8 μm/a.
Embodiment 2
Dispensing：Seawater corrosion resistance and the Cu alloy material washed away, each composition and its quality percentage that its component prescription is included
Than controlling in Cu66%, Al 0.1%, Sn 0.01%, Ni 0.01%, Y 0.2%, Fe 0.6%, surplus is Zn.Cu used during melting,
Al, Sn, Ni, Fe, Zn are simple substance simple metal, and Y is added with Cu-10%Y intermediate alloys.What is obtained after melting is organized as α phases.Prepare
Its intensity of obtained brass alloy material is more than 20% more than 400MPa, hardness HB 110, elongation percentage, in the seawater corrosion rate
For 15 μm/a.
Embodiment 3
Dispensing：Seawater corrosion resistance and the Cu alloy material washed away, each composition and its quality percentage that its component prescription is included
Than controlling in Cu75%, Al 0.8%, Sn 0.01%, Ni 0.01%, Y 0.1%, Fe 1%, surplus is Zn.Cu used during melting,
Al, Sn, Ni, Fe, Zn are simple substance simple metal, and Y is added with Cu-10%Y intermediate alloys.What is obtained after melting is organized as α phases.Prepare
Its intensity of obtained brass alloy material is more than 20% more than 450MPa, hardness HB 120, elongation percentage, in the seawater corrosion rate
For 12 μm/a.
Embodiment 4
Dispensing：Seawater corrosion resistance and the Cu alloy material washed away, each composition and its quality percentage that its component prescription is included
It is 1.5% than controlling in Cu70%, Al 0.4%, Sn 0.1%, Ni 0.12%, Y 0.05%, Fe, surplus is Zn.It is used during melting
Cu, Al, Sn, Ni, Fe, Zn use simple substance simple metal, and Y is added with Cu-15%Y intermediate alloys.What is obtained after melting is organized as α
Phase.It is 450MPa that its intensity of the brass alloy material prepared, which exceedes, and hardness is HB 120, and elongation percentage is more than 20%, in seawater
Middle corrosion rate is 12 μm/a.
Claims (4)
1. a kind of copper alloy of seawater corrosion resistance, it is characterised in that the mass percent of each component is as follows：
Cu 66-75%,
Al 0.1-0.8%,
Sn 0.01-0.2%,
Ni 0.01-0.2%,
Fe 0.5-1.5%,
Y 0.001-0.2%,
Zn surpluses；The copper alloy obtained after melting is organized as single-phase α phases.
2. a kind of copper alloy of seawater corrosion resistance according to claim 1, it is characterised in that the mass percent of each component
It is as follows：
Cu 70%,
Al 0.6%,
Sn 0.1%,
Ni 0.1%,
Y 0.05%,
Fe 0.6%,
Zn surpluses；The copper alloy obtained after melting is organized as single-phase α phases.
3. a kind of copper alloy of seawater corrosion resistance according to claim 1 or 2, it is characterised in that：Each component and its quality
Percentage meets following relation：[Sn]/[Ni]=0.90~1.2.
4. the preparation method of the copper alloy of a kind of seawater corrosion resistance described in claim 1, it is characterised in that comprise the following steps：
1）Each reactive material is weighed according to mass percent, wherein Cu, Al, Sn, Ni, Fe, Zn is simple substance, and Y is to be closed in the middle of Cu-Y
Gold；
2）Above-mentioned material is added in reaction vessel, using 1000 ~ 1200 DEG C of temperature melting 2 ~ 5 hours, after cooling i.e.
For the copper alloy of seawater corrosion resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400674.XA CN105908014B (en) | 2016-06-08 | 2016-06-08 | A kind of copper alloy of seawater corrosion resistance and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400674.XA CN105908014B (en) | 2016-06-08 | 2016-06-08 | A kind of copper alloy of seawater corrosion resistance and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN105908014A CN105908014A (en) | 2016-08-31 |
| CN105908014B true CN105908014B (en) | 2017-08-25 |
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| CN201610400674.XA Expired - Fee Related CN105908014B (en) | 2016-06-08 | 2016-06-08 | A kind of copper alloy of seawater corrosion resistance and preparation method thereof |
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| CN110144492A (en) * | 2018-07-11 | 2019-08-20 | 鹤山麦瑟文卫浴有限公司 | A kind of environment-friendly type lead-free copper alloy applied to tap |
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| JP4787986B2 (en) * | 2002-11-25 | 2011-10-05 | Ｄｏｗａメタルテック株式会社 | Copper alloy and manufacturing method thereof |
| CA2563094C (en) * | 2004-08-10 | 2012-03-27 | Sanbo Shindo Kogyo Kabushiki Kaisha | Copper-based alloy casting in which grains are refined |
| CN105603250B (en) * | 2016-03-28 | 2017-05-03 | 上海理工大学 | Seawater corrosion-resistant copper alloy and preparation method thereof |
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