CN1796582A - Nickel silver alloy and processing technique - Google Patents
Nickel silver alloy and processing technique Download PDFInfo
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- CN1796582A CN1796582A CN 200410100427 CN200410100427A CN1796582A CN 1796582 A CN1796582 A CN 1796582A CN 200410100427 CN200410100427 CN 200410100427 CN 200410100427 A CN200410100427 A CN 200410100427A CN 1796582 A CN1796582 A CN 1796582A
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Abstract
This invention relates to a zincum-white copper alloy and its processing technique. It comprises of 67~69wt% of Cu, 14~16wt% of Ni and 15~19wt% of zincum. Due to the creativity in weight percentage of the Cu-Ni-Zn ternary alloy in this invention, the alloy shows a considerably silvery color, an outstanding strength, wear resistance, corrosion resistance and discoloration resisting properties. This invention stressed a raw materials cost as low as possible, meanwhile assures excellent founding properties, corrosion resisting properties and coin processing properties.
Description
Technical field
The present invention relates to a kind of nickel silver alloy and complete processing thereof, can be applicable to the coinage field.
Background technology
Common copper-nickel alloy is that white copper alloy is early used in countries in the world coinage, with B19, B25 alloy is many, and China also once was used for common copper-nickel alloy B19, B25 alloy the production of circulation commemorative coins such as " founding the state for 50 anniversaries ", " Xinjiang ", " Ningxia ", " Construction Bank ".This class alloy is to form single-phase copper-nickel binary alloy with different copper, nickel element ratio, is characterized in having the silvery white color that the good processing properties people prefer.But this class alloy nickel element content is higher, causes the cost costliness.
Put down in writing according to the document that the complete works of scientific popularization of metal knowledge press publishes July nineteen eighty-three: spedex (German Silver) is a kind of foreign country silver, be called Alpaka or nickeline again, nickeliferous 5-33%, copper 50-70%, zinc 13-35%, this alloy add the ternary alloy that element zinc forms on the basis of copper-nickel binary alloy.But constituent content a wider range that the document provides, the proportioning of its constituent content are not suitable for coinage and produce needs.Mainly show as:
(1), when the content of nickel, zinc is on the low side, as: zinc content is lower than 20%, and nickel content is 5% o'clock, and this alloy is yellow copper alloy, and the solidity to corrosion of this alloy is relatively poor.This point can be passed through synthetic perspiration, SO
2, H
2In the corrosion tests such as S as can be seen.
(2), when the content of nickel, zinc is higher, as: nickel about 33%, zinc about 35, from phasor as can be seen, this alloy produced α mutually with β mutually, do not form sosoloid.
Summary of the invention
The present invention is directed to the technical problem of above-mentioned existence and a kind of nickel silver alloy and complete processing thereof are provided, this nickel silver alloy is the selectivity invention on the basis of copper-nickel binary alloy and copper nickel zinc ternary alloy in the past.On this basis, by the method for analysis of experiments, select to have determined following elementary composition.
Composition of the present invention (by weight percentage):
Cu67％～69％，Ni14％～16％，Zn15％～19％。
The composition of optimum value of the present invention (by weight percentage):
Cu68％，Ni15％，Zn17％。
The complete processing of nickel silver alloy of the present invention:
1, alloy smelting process
(1), raw material: electrolytic copper, electrolytic nickel, zinc ingot metal, Cu-Mg alloy
(2), technical qualification and parameter:
Casting blank specification: 420 * 16 * Lmm
Smelting temperature: 1300～1320 ℃
Reductor: Cu-Mg, Cu-Mn master alloy
Insulating covering agent: destructive distillation charcoal
(3), order of addition(of ingredients): electrolytic copper → electrolytic nickel → zinc ingot metal → Cu-Mn alloy → skim → sampling analysis → thermometric → add charcoal flame to come out of the stove.
2, horizontal casting
(1), cast temperature: 1230～1250 ℃
(2), cast program
Draw 15.00mm 1s
Stop 1 1s
The counter 1 1mm 0.1s that pushes away
Stop 2 2s
The counter 2 1.5mm 0.2s that push away
Casting speed: 266mm/min.
(3), cooling water pressure and temperature
Water coolant hydraulic pressure: 0.8～1.0Mpa
Water temperature: 21～27 ℃ of inlet water temperatures, 55～60 ℃ of outlet water temperatures
3, rolling complete processing
Beneficial effect of the present invention:
Because the originality of the weight percent of the copper nickel zinc ternary alloy that the present invention selects makes this alloy have good performances such as silvery white form and aspect, intensity, abrasion resistance properties and corrosion resistant anti-tarnishing.
The present invention attaches most importance to reduce material cost as far as possible, guarantees that the new alloy material has good casting processing performance, excellent corrosion resisting performance and coinage processing performance.
The processing features of alloy of the present invention
(1), adopt induction stirring, guarantee the uniform and stable of alloy ingredient, avoid the composition segregation.
(2), reductor is the Cu-Mg alloy, add-on is controlled at about every stove 10Kg, divides three addings, carries out repeatedly deoxidizing purification and handles, so that solution reaches the purification requirement, avoids occurring defectives such as internal porosity and surface crack in the post-production process.
(3), adopt repeatedly flame (more than the flame secondary), and the strict temperature of fusion of carrying out: 1300～1320.
(4), the holding furnace temperature will be controlled at 1220～1250 ℃, guarantees metal flow, avoids drawing crack.
(5), total working modulus of BZn15-17 alloy can reach 80% or higher, help producing in enormous quantities.
Element zinc can be dissolved in the sosoloid of copper-nickelalloy in a large number, forms a single-phase widely α solution area, plays the solution strengthening effect in alloy, improves the intensity and the hardness of alloy, guarantees that alloy has good processing characteristics and corrosion resistance nature.
From Cu-Ni-Zn be phasor as can be seen, the nickel silver alloy of this content range is at room temperature organized and is single-phase αGu Rongti.
The present invention is this novel nickel silver alloy, and its alloy composition is: (wt%)
| Cu | Ni | Zn |
| 67～69 | 14～16 | 15～19 |
Embodiment
Embodiment 1
Composition of the present invention (by weight percentage):
Cu67％，Ni14％，Zn19％。
The complete processing of nickel silver alloy of the present invention:
1, alloy smelting process
(1), raw material: electrolytic copper, electrolytic nickel, zinc ingot metal, Cu-Mg
(2), technical qualification and parameter:
Casting blank specification: 420 * 16 * Lmm
Smelting temperature: 1300～1320 ℃
Reductor: Cu-Mg, Cu-Mn master alloy
Insulating covering agent: destructive distillation charcoal
(3), order of addition(of ingredients): electrolytic copper → electrolytic nickel → zinc ingot metal → Cu-Mn alloy → skim → sampling analysis → thermometric → add charcoal flame to come out of the stove.
2, horizontal casting
(1), cast temperature: 1230 ℃
(2), cast program
Draw 15.00mm 1s
Stop 1 1s
The counter 1 1mm 0.1s that pushes away
Stop 2 2s
The counter 2 1.5mm 0.2s that push away
Casting speed: 266mm/min.
(3), cooling water pressure and temperature
Water coolant hydraulic pressure: 0.8Mpa
Water temperature: 21 ℃ of inlet water temperatures, 55 ℃ of outlet water temperatures
3, rolling complete processing
Embodiment 2
The composition of optimum value of the present invention (by weight percentage):
Cu68％，Ni15％，Zn17％。
The complete processing of nickel silver alloy of the present invention:
1, alloy smelting process
(1), raw material: electrolytic copper, electrolytic nickel, zinc ingot metal, Cu-Mg
(2), technical qualification and parameter:
Casting blank specification: 420 * 16 * Lmm
Smelting temperature: 1320 ℃
Reductor: Cu-Mg, Cu-Mn master alloy
Insulating covering agent: destructive distillation charcoal
(3), order of addition(of ingredients): electrolytic copper → electrolytic nickel → zinc ingot metal → Cu-Mn alloy → skim → sampling analysis → thermometric → add charcoal flame to come out of the stove.
2, horizontal casting
(1), cast temperature: 1250 ℃
(2), cast program
Draw 15.00mm 1s
Stop 1 1s
The counter 1 1mm 0.1s that pushes away
Stop 2 2s
The counter 2 1.5mm 0.2s that push away
Casting speed: 266mm/min.
(3), cooling water pressure and temperature
Water coolant hydraulic pressure: 1.0Mpa
Water temperature: 27 ℃ of inlet water temperatures, 60 ℃ of outlet water temperatures
3, rolling complete processing is with embodiment 1.
Embodiment 3
Composition of the present invention (by weight percentage):
Cu69％，Ni16％，Zn15％。
Its complete processing is with embodiment 1.
Claims (3)
1. nickel silver alloy is characterized in that it forms by following weight percent:
Cu 67％～69％，Ni 14％～16％，Zn 15％～19％。
2. nickel silver alloy according to claim 1 is characterized in that it forms by following optimum weight per-cent:
Cu68％，Ni15％，Zn17％。
3. the complete processing of a nickel silver alloy is characterized in that it forms by following weight percent:
Cu 67％～69％，Ni 14％～16％，Zn 15％～19％；
Its complete processing:
(1), alloy smelting process
1., raw material: electrolytic copper, electrolytic nickel, zinc ingot metal, Cu-Mg alloy;
2., technical qualification and parameter:
Casting blank specification: 420 * 16 * Lmm
Smelting temperature: 1300～1320 ℃
Reductor: Cu-Mg, Cu-Mn master alloy
Insulating covering agent: destructive distillation charcoal
3., order of addition(of ingredients): electrolytic copper → electrolytic nickel → zinc ingot metal → Cu-Mn alloy → skim → sampling analysis → thermometric → add charcoal flame to come out of the stove;
(2), horizontal casting
1., cast temperature: 1230～1250 ℃
2., cast program
Draw 15.00mm 1s
Stop 1 1s
The counter 1 1mm 0.1s that pushes away
Stop 2 2s
The counter 2 1.5mm 0.2s that push away
Casting speed: 266mm/min.
3., cooling water pressure and temperature
Water coolant hydraulic pressure: 0.8～1.0Mpa
Water temperature: 21～27 ℃ of inlet water temperatures, 55～60 ℃ of outlet water temperatures
(3), rolling complete processing
Comprise cold rolling cogging, process annealing, pre-finish rolling and annealing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410100427 CN1796582A (en) | 2004-12-21 | 2004-12-21 | Nickel silver alloy and processing technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410100427 CN1796582A (en) | 2004-12-21 | 2004-12-21 | Nickel silver alloy and processing technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1796582A true CN1796582A (en) | 2006-07-05 |
Family
ID=36817897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410100427 Pending CN1796582A (en) | 2004-12-21 | 2004-12-21 | Nickel silver alloy and processing technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1796582A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251143A (en) * | 2011-06-25 | 2011-11-23 | 中色奥博特铜铝业有限公司 | Method for solving high-temperature oxidation of nickel silver C7521 |
| CN102618749A (en) * | 2012-04-16 | 2012-08-01 | 金川集团有限公司 | Cupronickel alloy and manufacturing method thereof for coinage |
| CN101924313B (en) * | 2009-06-09 | 2012-12-19 | 重庆川仪自动化股份有限公司 | Silver palladium/packfong stratiform composite material and preparation method |
| CN102912154A (en) * | 2012-11-02 | 2013-02-06 | 南阳市汇森精密仪器铸造有限公司 | Melting process for increasing conductivity of red copper |
| CN103627925A (en) * | 2013-12-02 | 2014-03-12 | 厦门火炬特种金属材料有限公司 | Nickelic packfong matrix alloy solder wire and preparation method thereof |
| CN103726000A (en) * | 2013-11-25 | 2014-04-16 | 青岛盛嘉信息科技有限公司 | Copper alloy strip production technique |
| WO2021128434A1 (en) * | 2019-12-24 | 2021-07-01 | 宁波博威合金材料股份有限公司 | Easy-to-cut zinc-copper-nickel alloy, preparation method therefor and use thereof |
| CN116555621A (en) * | 2023-05-31 | 2023-08-08 | 浙江惟精新材料股份有限公司 | High-performance white copper with low conductivity and preparation method thereof |
-
2004
- 2004-12-21 CN CN 200410100427 patent/CN1796582A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924313B (en) * | 2009-06-09 | 2012-12-19 | 重庆川仪自动化股份有限公司 | Silver palladium/packfong stratiform composite material and preparation method |
| CN102251143A (en) * | 2011-06-25 | 2011-11-23 | 中色奥博特铜铝业有限公司 | Method for solving high-temperature oxidation of nickel silver C7521 |
| CN102618749A (en) * | 2012-04-16 | 2012-08-01 | 金川集团有限公司 | Cupronickel alloy and manufacturing method thereof for coinage |
| CN102618749B (en) * | 2012-04-16 | 2013-07-17 | 金川集团有限公司 | Manufacturing method of cpronickel alloy for coinage |
| CN102912154A (en) * | 2012-11-02 | 2013-02-06 | 南阳市汇森精密仪器铸造有限公司 | Melting process for increasing conductivity of red copper |
| CN102912154B (en) * | 2012-11-02 | 2014-11-26 | 南阳市汇森精密仪器铸造有限公司 | Melting process for increasing conductivity of red copper |
| CN103726000A (en) * | 2013-11-25 | 2014-04-16 | 青岛盛嘉信息科技有限公司 | Copper alloy strip production technique |
| CN103627925A (en) * | 2013-12-02 | 2014-03-12 | 厦门火炬特种金属材料有限公司 | Nickelic packfong matrix alloy solder wire and preparation method thereof |
| CN103627925B (en) * | 2013-12-02 | 2016-04-06 | 厦门火炬特种金属材料有限公司 | A kind of Nickelic packfong matrix alloy solder wire and preparation method thereof |
| WO2021128434A1 (en) * | 2019-12-24 | 2021-07-01 | 宁波博威合金材料股份有限公司 | Easy-to-cut zinc-copper-nickel alloy, preparation method therefor and use thereof |
| CN116555621A (en) * | 2023-05-31 | 2023-08-08 | 浙江惟精新材料股份有限公司 | High-performance white copper with low conductivity and preparation method thereof |
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