CN102925753A - Nickel-copper alloy with high strength and high corrosion resistance and manufacturing method thereof - Google Patents
Nickel-copper alloy with high strength and high corrosion resistance and manufacturing method thereof Download PDFInfo
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- CN102925753A CN102925753A CN2012104216754A CN201210421675A CN102925753A CN 102925753 A CN102925753 A CN 102925753A CN 2012104216754 A CN2012104216754 A CN 2012104216754A CN 201210421675 A CN201210421675 A CN 201210421675A CN 102925753 A CN102925753 A CN 102925753A
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Abstract
The invention discloses a nickel-copper alloy with high strength and high corrosion resistance and a manufacturing method thereof. The method takes electrolytic copper and electrolytic nickel as major components, a small amount of manganese, iron, silicon, metal magnesium and metal titanium is added, and the impurity accounts for less than or equal to 0.5%. According to the invention, the components are sequentially put into a smelting furnace and subjected to the steps of smelting, stirring and slag extraction, refining, casting formation and the like to obtain a finished product of the nickel-copper alloy. Through the invention, the tensile strength is 670-720Rm/MPa, the elongation is 6-7.5, the strength is improved by 15% over the existing domestic nickel-copper alloy, and the corrosion resistance is improved by about twice. The nickel-copper alloy disclosed by the invention is widely applicable, has long service life and the like, can be used for producing plates, belts, pipes, rods, lines and forgings, and is applied to the industries such as shipbuilding, chemical industry, machinery manufacturing, aerospace, electronics and the like. The manufacturing method disclosed by the invention changes the original vacuum casting process, adopts a semi-continuous smelting method and reduces the production cost.
Description
Technical field
The present invention relates to a kind of cupronickel technical field, specifically a kind of corronel and manufacture method thereof with high strength high corrosion resistance.
Background technology
Because advantages such as (relatively other copper alloys) that the corronel erosion resistance is high, elasticity is large, intensity is high is widely used in the industries such as shipbuilding, chemical industry, electronics, space flight and aviation.For the manufacture of the military project corrosion-resistant element, various springs and plug-in unit.
Be unlimited solid solution when Ni and Cu high temperature melting, face-centered cubic lattice.Tensile strength φ 5～φ 20 635Rm/MPa of the corronel NCu40-2-1 bar of at present domestic production, extension property 4A/%＞φ 20～φ 30,598Rm/MPa, extension property 5A/%.Long-time sea water immersion can produce certain corrosion, how to put forward the high performance corronel erosion resistance that improves simultaneously, is the problem that this professional science and technology personnel concentrate on studies for a long time always, but fails so far to see the relevant relevant report of breaking through.
Summary of the invention
The objective of the invention is provides a kind of high strength, high corrosion resistance corronel and manufacture method thereof for above-mentioned existing technical problem.The present invention not only increases substantially intensity but also increase substantially erosion resistance, improves more than 10% than original tensile strength, and erosion resistance improves more than 2 times.
The objective of the invention is to be achieved through the following technical solutions: a kind of manufacture method with corronel of high strength high corrosion resistance, form by following weight percent first and get respectively: electrolytic nickel, electrolytic copper, manganese, iron, silicon, MAGNESIUM METAL, metal titanium is that the preparation of raw material alloy material is for subsequent use, then respectively with electrolytic nickel, electrolytic copper, manganese, iron, MAGNESIUM METAL, metal titanium, silica flour is packed in the smelting furnace step by step successively, and its specified operational procedure is as follows: add first nickel, copper, the glass of the lubricated and covering effect of iron+necessarily measure → fusing → add again manganese, slag → add glass → stirring → sampling on-the-spot sample analysis → thermometric → add titanium is dragged in silicon → stirring, magnesium → sampling → casting; Tapping temperature is 450～1480 ℃, and the casting mode is spacious stream, and lubricant is roasting red cigarette ash; Qualified ingot casting is through heats forged or hot rolling, car light or sword mould, and the manual repair that strips off the skin, 800～850 ℃ of annealing in excellent base surface stretch, the rolling rear final corronel finished product that is of annealing;
Described weight percent consists of: metallic copper is 36～44%, iron is 0.2～1.0%, manganese is 1.25～2.25%, silicon is 0.15～0.1%, MAGNESIUM METAL is 0.05～0.1%, metal titanium 0.1%～0.15%, metallic nickel is surplus, and inevitably impurity is≤0.5%.
The preferred weight percent of corronel composition of the present invention consists of: metallic copper is 38～42%, iron is 0.2～1.0%, manganese is 1.25～2.25%, silicon is 0.15～0.1%, MAGNESIUM METAL is 0.03～0.08%, metal titanium 0.1%～0.15%, metallic nickel is surplus, and inevitably impurity is≤0.5%.
The present invention increases substantially the intensity of product when improving erosion resistance, through great many of experiments, finally take to add MAGNESIUM METAL (Mg), silicon, titanium mode.Why select the reason of magnesium, silicon, titanium to be: magnesium+titanium one is fusing assistant, the 2nd, and the gases such as the absorption oxygen that magnesium can be a large amount of when heating, hydrogen, nitrogen are desirable getters, have titanium that good erosion resistance is arranged again.The adding of silicon is conducive to improve metallicity by the admittedly molten crystal grain thinning of strengthening.The present invention compares with existing corronel and has the following advantages:
1. tensile strength 670～720Rm/MPa, unit elongation 6-7.5 improves more than 15% than present domestic corronel intensity, and erosion resistance improves nearly more than 2 times.
2. the present invention has and is widely used, and the characteristics such as long service life can be produced plate, band, pipe, rod, line, forging.Be applied in industries such as shipbuilding, chemical industry, machinofacture, space flight and aviation, electronics, it is good that the present invention also has the processibility of corronel, the complete processing link simply is easy to produce, and is applicable to each Application Areas, particularly to the requirement of high strength, high corrosion resistance corronel.
Manufacture method of the present invention has changed original vacuum casting process, adopts semicontinuous smelting process, has reduced production cost.
This manufacture method has changed the technique that adopts antivacuum annealing between original cold working passage; adopt the annealing of vacuum nitrogen gas protectiveness; improved greatly product surface quality (after antivacuum annealing, the product oxidation is through cleanup acid treatment, not only contaminate environment but also increased cost).
The below will be described in further detail the present invention by example, but following example only is the present invention's example wherein, not represent the rights protection scope that the present invention limits, and the scope of the present invention is as the criterion with claims.
Embodiment:
Embodiment 1
(1) take electrolytic nickel, electrolytic copper, manganese, iron, silicon, MAGNESIUM METAL, metal titanium as the preparation of raw material alloy material, each is organized designing quality and is respectively: electrolytic nickel is that 14.275 kilograms, 10.25 kilograms of electrolytic coppers, 0.325 kilogram in manganese, 0.075 kilogram of iron, 0.025 kilogram of silicon, 0.02 kilogram in magnesium, 0.035 kilogram of (in the 25kg smelting furnace of packing into step by step) schedule of operation of metal titanium are as follows: slag → add glass → stirring → sampling on-the-spot sample analysis → thermometric → add titanium, magnesium → sampling → cast molding are dragged in nickel+copper+iron+glass → fusing → manganese addition, silicon → stirring;
(2) casting forms, and ingot casting is processed post-heating to 950～1050 ℃ split rolling method rod base and stripped off the skin the manual repair by 800～850 ℃ of annealing post-tensioning alloyage finished products through multi-drawing sword mould.Between the general working rate control 60-70%, the finished product working modulus is controlled between the 28-30.
Each specification:
1, high-quality electrolytic nickel, electrolytic copper, manganese, iron, MAGNESIUM METAL, metallic silicon power and the metal titanium of material choice;
2, in fusion process, add a certain amount of glass and belong to conventional selection, the bath of glass after the fusing plays lubricated and insulating covering agent.
3, tapping temperature is 1450～1480 ℃, the casting mode: spacious stream, lubricant: roasting red cigarette ash;
4, analysis of components: copper (38-42%), manganese (1.25-2.25%), iron (0.2-1.0%), silicon (0.15-0.1%), titanium are ignored, surplus nickel, impurity≤0.5%;
Analytical procedure: slightly
5, ingot casting φ 45 * 320mm surface zero defect;
6, ingot casting low power penetration inspection zero defect;
7,950 ℃～1050 ℃ insulations of ingot casting heating are 60 minutes, hot rolling φ 30;
8, φ 30 strips off the skin the manual repair by 800～850 ℃ of vacuum annealing insulations 90 minutes through 4 stretching passage rod base surface sword moulds, and the cooling post-tensioning is to required finished product.
Embodiment 2
(1) electrolytic nickel, electrolytic copper, manganese, iron, MAGNESIUM METAL, metal titanium are the preparation of raw material alloy material, and each echelon design quality is respectively 14.458 kilograms of electrolytic nickels, 10 kilograms of electrolytic coppers, 0.35 kilogram in manganese, 0.1 kilogram of iron, 0.03 kilogram of silica flour, 0.0175 kilogram in magnesium, 0.0325 kilogram of titanium (in the 25kg smelting furnace of packing into step by step); Schedule of operation is as follows: slag → add glass → stirring → sampling on-the-spot sample analysis → thermometric → add titanium, magnesium → sampling → cast molding are dragged in nickel+copper+iron+glass → fusing → manganese addition, silicon → stirring;
(2) ingot casting is processed post-heating to 950 ℃～1050 ℃ of split rolling method rod bases and is stripped off the skin the manual repair by 800～850 ℃ of annealing post-tensioning alloyage finished products through multi-drawing; Between the general working rate control 60-70%, the finished product working modulus is controlled between the 28-30.
Its each specification is identical with embodiment 1, so omit.
Embodiment 3
(1) take electrolytic nickel, electrolytic copper, manganese, iron, MAGNESIUM METAL, metal titanium as the preparation of raw material alloy material, each echelon design quality is respectively 14.598 kilograms of electrolytic nickels, 9.78 kilograms of electrolytic coppers, 0.4 kilogram in manganese, 0.15 kilogram of iron, 0.0325 kilogram of silica flour, 0.015 kilogram in magnesium, 0.03 kilogram of titanium (in the 25kg smelting furnace of packing into step by step); Schedule of operation is as follows: slag → add glass → stirring → sampling on-the-spot sample analysis → thermometric → add titanium, magnesium → sampling → cast molding are dragged in nickel+copper+iron+glass → fusing → manganese addition, silicon → stirring;
(2) ingot casting is processed post-heating to 950 ℃～1050 ℃ of split rolling method rod bases and is stripped off the skin the manual repair by 800～850 ℃ of annealing post-tensioning alloyage finished products through multi-drawing; Between the general working rate control 60-70%, the finished product working modulus is controlled between the 28-30.
Its each specification is identical with embodiment 1, so omit.
Embodiment 4
(1) take electrolytic nickel, electrolytic copper, manganese, iron, MAGNESIUM METAL, metal titanium as the preparation of raw material alloy material, each echelon design quality is respectively 14.63 kilograms of electrolytic nickels, 9.625 kilograms of electrolytic coppers, 0.438 kilogram in manganese, 0.175 kilogram of iron, 0.035 kilogram of silica flour, 0.0125 kilogram in magnesium, 0.0275 kilogram of titanium (in the 25kg smelting furnace of packing into step by step); Schedule of operation is as follows: slag → add glass → stirring → sampling on-the-spot sample analysis → thermometric → add titanium, magnesium → sampling → cast molding are dragged in nickel+copper+iron+glass → fusing → manganese addition, silicon → stirring;
﹝ 0021 ﹞ (2) ingot casting is processed post-heating to 950 ℃～1050 ℃ of split rolling method rod bases and is stripped off the skin the manual repair by 800～850 ℃ of annealing post-tensioning alloyage finished products through multi-drawing; Between the general working rate control 60-70%, the finished product working modulus is controlled between the 28-30.
Its each specification is identical with embodiment 1, so omit.
Embodiment 5
(1) take electrolytic nickel, electrolytic copper, manganese, iron, MAGNESIUM METAL, metal titanium as the preparation of raw material alloy material, each echelon design quality is respectively 13.875 kilograms of electrolytic nickels, 10.375 kilograms of electrolytic coppers, 0.475 kilogram in manganese, 0.21 kilogram of iron, 0.0375 kilogram of silica flour, 0.01 kilogram in magnesium, 0.025 kilogram of titanium (in the 25kg smelting furnace of packing into step by step); Schedule of operation is as follows: slag → add glass → stirring → sampling on-the-spot sample analysis → thermometric → add titanium, magnesium → sampling → cast molding are dragged in nickel+copper+iron+glass → fusing → manganese addition, silicon → stirring;
(2) ingot casting is processed post-heating to 950 ℃～1050 ℃ of split rolling method rod bases and is stripped off the skin the manual repair by 800～850 ℃ of annealing post-tensioning alloyage finished products through multi-drawing; Between the general working rate control 60-70%, the finished product working modulus is controlled between the 28-30.
Its each specification is identical with embodiment 1, so omit.
Embodiment 6
(1) take electrolytic nickel, electrolytic copper, manganese, iron, MAGNESIUM METAL, metal titanium as the preparation of raw material alloy material, each echelon design quality is respectively 13.738 kilograms of electrolytic nickels, 10.3758 kilograms of electrolytic coppers, 0.5 kilogram in manganese, 0.025 kilogram of iron, 0.0375 kilogram of silica flour, 0.0375 kilogram in magnesium, 0.025 kilogram of titanium (in the 25kg smelting furnace of packing into step by step); Schedule of operation is as follows: slag → add glass → stirring → sampling on-the-spot sample analysis → thermometric → add titanium, magnesium → sampling → cast molding are dragged in nickel+copper+iron+glass → fusing → manganese addition, silicon → stirring;
(2) ingot casting is processed post-heating to 950 ℃～1050 ℃ of split rolling method rod bases and is stripped off the skin the manual repair by 800～850 ℃ of annealing post-tensioning alloyage finished products through multi-drawing; Between the general working rate control 60-70%, the finished product working modulus is controlled between the 28-30.
Its each specification is identical with embodiment 1, so omit.
The anticorrosive synopsis with the invention material mechanical performance of domestic corronel
This material is through chemical industry and shipbuilding industry level electron pair corronel Ni40-2-1 material contrast, and tensile strength improves more than 10%, and erosion resistance improves more than 2 times, believes that this type material also can have widely application in other industry.
Claims (4)
1. corronel with high strength high corrosion resistance is characterized in that the weight percent of this corronel composition consists of:
Metallic copper is 36～44%, iron is 0.2～1.0%, manganese is 1.25～2.25%, silicon is 0.15～0.1%, MAGNESIUM METAL is 0.05～0.1%, and metal titanium 0.1%～0.15%, metallic nickel are surplus, and inevitably impurity is≤0.5%.
2. the corronel with high strength high corrosion resistance according to claim 1, the weight percent that it is characterized in that this corronel composition consists of: metallic copper is 38～42%, iron is 0.2～1.0%, manganese is 1.25～2.25%, silicon is 0.15～0.1%, MAGNESIUM METAL is 0.03～0.08%, metal titanium 0.1%～0.15%, metallic nickel is surplus, and inevitably impurity is≤0.5%.
3. manufacture method with high strength high corrosion resistance corronel, it is characterized in that: form by following weight percent first and get respectively: electrolytic nickel, electrolytic copper, manganese, iron, silicon, MAGNESIUM METAL, metal titanium is that the preparation of raw material alloy material is for subsequent use, then respectively with electrolytic nickel, electrolytic copper, manganese, iron, MAGNESIUM METAL, metal titanium, silica flour is packed in the smelting furnace step by step successively, and its specified operational procedure is as follows: add first nickel, copper, the glass of the lubricated and covering effect of iron+necessarily measure → fusing → add again manganese, slag → add glass → stirring → sampling on-the-spot sample analysis → thermometric → add titanium is dragged in silicon → stirring, magnesium → sampling → casting; Tapping temperature is 450～1480 ℃, and the casting mode is spacious stream, and lubricant is roasting red cigarette ash; Qualified ingot casting is through heats forged or hot rolling, car light or sword mould, and the manual repair that strips off the skin, 800～850 ℃ of annealing in excellent base surface stretch, the rolling rear final corronel finished product that is of annealing;
Described weight percent consists of: metallic copper is 36～44%, iron is 0.2～1.0%, manganese is 1.25～2.25%, silicon is 0.15～0.1%, MAGNESIUM METAL is 0.05～0.1%, metal titanium 0.1%～0.15%, metallic nickel is surplus, and inevitably impurity is≤0.5%.
4. the manufacture method of high strength high corrosion resistance corronel according to claim 3, it is characterized in that the weight percent that is this corronel composition consists of: metallic copper is 38～42%, iron is 0.2～1.0%, manganese is 1.25～2.25%, silicon is 0.15～0.1%, MAGNESIUM METAL is 0.03～0.08%, metal titanium 0.1%～0.15%, metallic nickel is surplus, and inevitably impurity is≤0.5%.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394659A (en) * | 2013-08-01 | 2013-11-20 | 浙江振兴石化机械有限公司 | Method for forming Monel metal bar under vacuum state |
| CN103469006A (en) * | 2013-09-22 | 2013-12-25 | 苏州华宇精密铸造有限公司 | Method for manufacturing nickel-copper alloy valve body for precision casting |
| CN104357710A (en) * | 2014-11-26 | 2015-02-18 | 杨攀 | Novel nickel alloy and preparation method thereof |
| CN105177395A (en) * | 2015-11-09 | 2015-12-23 | 江苏利普机械有限公司 | Manufacturing technique of nickel-copper alloy |
| CN110085602A (en) * | 2019-04-22 | 2019-08-02 | 武汉华星光电半导体显示技术有限公司 | Metal wiring film and preparation method thereof, thin film transistor (TFT) |
| CN111172423A (en) * | 2020-03-08 | 2020-05-19 | 沈阳有色金属研究所有限公司 | Cupronickel alloy and preparation method thereof |
| CN111961919A (en) * | 2020-08-04 | 2020-11-20 | 钢铁研究总院 | Nickel-copper alloy bar for ship and processing method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394659A (en) * | 2013-08-01 | 2013-11-20 | 浙江振兴石化机械有限公司 | Method for forming Monel metal bar under vacuum state |
| CN103469006A (en) * | 2013-09-22 | 2013-12-25 | 苏州华宇精密铸造有限公司 | Method for manufacturing nickel-copper alloy valve body for precision casting |
| CN103469006B (en) * | 2013-09-22 | 2015-04-15 | 苏州华宇精密铸造有限公司 | Method for manufacturing nickel-copper alloy valve body for precision casting |
| CN104357710A (en) * | 2014-11-26 | 2015-02-18 | 杨攀 | Novel nickel alloy and preparation method thereof |
| CN105177395A (en) * | 2015-11-09 | 2015-12-23 | 江苏利普机械有限公司 | Manufacturing technique of nickel-copper alloy |
| CN110085602A (en) * | 2019-04-22 | 2019-08-02 | 武汉华星光电半导体显示技术有限公司 | Metal wiring film and preparation method thereof, thin film transistor (TFT) |
| US11430815B2 (en) | 2019-04-22 | 2022-08-30 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Metal wiring film and method of fabricating thereof, thin film transistor |
| CN111172423A (en) * | 2020-03-08 | 2020-05-19 | 沈阳有色金属研究所有限公司 | Cupronickel alloy and preparation method thereof |
| CN111172423B (en) * | 2020-03-08 | 2021-10-29 | 沈阳有色金属研究所有限公司 | Cupronickel alloy and preparation method thereof |
| CN111961919A (en) * | 2020-08-04 | 2020-11-20 | 钢铁研究总院 | Nickel-copper alloy bar for ship and processing method thereof |
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Address after: 110000 No. 223-1, Chun Ying Street, Sujiatun District, Liaoning, Shenyang Patentee after: Shenyang Non Ferrous Metals Research Institute Co Ltd Address before: Lin Wen Shengzhen village of Sujiatun District of Shenyang City, Liaoning province 110101 Patentee before: Shenyang Institute of Refractory Metal |