CN106868336B - A method of preparing white copper alloy without nickel wire rod - Google Patents
A method of preparing white copper alloy without nickel wire rod Download PDFInfo
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- CN106868336B CN106868336B CN201710160401.7A CN201710160401A CN106868336B CN 106868336 B CN106868336 B CN 106868336B CN 201710160401 A CN201710160401 A CN 201710160401A CN 106868336 B CN106868336 B CN 106868336B
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- copper alloy
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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
- C22C9/05—Alloys based on copper with manganese as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/163—Rolling or cold-forming of concrete reinforcement bars or wire ; Rolls therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metal Rolling (AREA)
- Conductive Materials (AREA)
- Continuous Casting (AREA)
Abstract
The invention belongs to metal material processing technical fields, and in particular to a kind of method that short route prepares white copper alloy without nickel wire rod, the preparation method include: melting, horizontal casting；Milling face, planetary rolling；Multi-pass continuous drawing, totally three steps, and among being carried out according to actual needs during third step multi pass drawing or finished products.The planetary rolling technique that the present invention applies can make the cold conditions cast sturcture after horizontal casting be transformed into the soft state recrystallized structure of suitable deep processing by instantaneous large deformation, no longer need to be made annealing treatment before processing subsequent drawing.Therefore, it compared with traditional handicraft, can significantly shorten process flow, reduce drawing passes, improve pass reduction, reduce and even save intermediate annealing process, improve product lumber recovery.
Description
Technical field
The invention belongs to metal material processing technical fields, and in particular to a kind of side for preparing white copper alloy without nickel wire rod
Method, the method that especially a kind of short route prepares white copper alloy without nickel wire rod, be mainly used in manufacture zipper, button,
White copper alloy without nickel wire rod needed for frame and various ornament materials.
Background technique
The nickeliferous White brass alloy of tradition is because of its graceful color, excellent corrosion resistance, higher intensity and good craftsmanship
Can, it is widely used for manufacturing frame, zipper, button, watch chain and decorative craft etc..The system of traditional White brass alloy wire rod
Preparation Method is mainly semi-continuous casting+hot extrusion+cold rolling, and semi-continuous casting+hot rolling+cold rolling/cold drawing or semi-continuous casting+
Cold rolling+cold drawing, that there is processes is more for these methods, lumber recovery is low, wire rod manufacturing cost height, manufactured goods unstable quality etc.
Disadvantage.Meanwhile because the hot-working section of traditional copper-nickel alloy is very narrow and be not suitable for more novel cold working casting and roll process into
Row processing.Moreover, Recent study is found, human body is contacted with nickel-containing material for a long time, there is sensitization and carcinogenic danger.Various countries at present
The use of nickeliferous product is increasingly stringenter, the product for being gradually forbidden to use nickel-containing alloys manufacture and human contact has been started.
Therefore, many units study not nickeliferous white copper alloy material and its production method in recent years.Day
This YKK Co., Ltd has applied for the invention of four white copper alloy without nickel respectively at 1998,2000 and 2002 in China
Patent (CN1219598, CN1278561, CN1271023, CN1414126), wherein the patent CN1414126 of application in 2002 is
Cu-Zn-Ti system alloy, excess-three item be Cu-Zn-Mn system alloy, but they the shortcomings that be that given composition range is too wide,
Tone, the performance difference of obtained alloy are too big, and used production method is that induction melting-copper mold great waves are cast-is squeezed into
Type only gives the embodiment of a small amount of sample in the patent, is mass produced factory without practical directive significance.Shanghai first
Copper rod factory cooperates to have applied for the patent of invention without Alpaka in China in 2002 with Shanghai Communications University
(CN1334352), on the insufficient basis of two patents (CN1219598 and CN1271023) of comprehensive analysis YKK Co., Ltd
On, give so that the more rational range alloying component appropriate of the performance of alloy, also disclose the alloy wire plus
Work method, but the adding method is more traditional non-vacuum melting, horizontal casting-cold drawing-cold rolling-cold drawing, and there is life in this method
Produce long flow path, the disadvantages such as annealing times are more, high production cost, and yield rate is low.Institutes Of Technology Of Jiangxi applied in 2010 in China
One patent of invention (CN101899588) without Alpaka, provide it is a kind of containing rare earth element without Alpaka alloy and
The processing method of its plate.Central South University applied for the patent of invention without Alpaka in China in 2011
(CN102242292), a kind of component of the free machining no Alpaka alloy of high fastness and its processing method of plate are provided.
This two patents do not carry out research report to the production method of wire rod.
There is the neck such as frame, zipper, button, watch chain and part ornament materials of wilderness demand to white copper alloy
Domain requires to manufacture white copper alloy and is processed into line base, then carries out subsequent production processing.Therefore a kind of white copper alloy is developed
The short route technology of preparing of wire rod is very necessary.
Summary of the invention
Contain nickel element for traditional copper-nickel alloy and is detrimental to health and production technology is more backward and novel non-nickel copper-nickel alloy
There is significant insufficient realistic problem in the research of wire rod method for producing, the present invention develops a kind of white copper alloy without nickel line
The short flow process of material, simple production process, process is short, high yield rate, environmental-friendly.
A kind of white copper alloy without nickel wire rod of the present invention, by weight percentage, raw material composition are as follows: Mn:10-
14%, Zn:5-15%, Sn:0.5-1.5%, Al:0.5-1.5%, Si:0.01-0.3%, Zr:0.01-0.5%, surplus are Cu
With inevitable impurity, the sum of each component weight percent is 100%.
It is specific the preparation method comprises the following steps: being prepared using short route, specific steps are as follows:
(1) melting, horizontal casting
According to the white copper alloy component proportion of design, will be closed among pure manganese, pure zinc, fine aluminium, pure tin, copper-silicon, copper-zirconium
Gold and cathode copper are fitted into intermediate frequency furnace, are melted, slag making, when being warming up to 1200-1250 DEG C, take sample in furnace, spectrum analysis at
Divide after meeting the requirements, carries out horizontal casting；Confirmation horizontal caster a complete set of equipment works well, after dummy device rotation flexibly,
Casting throwing is opened, copper alloy circle continuous casting billet is obtained；
(2) face, planetary rolling are milled
Planetary rolling is imported after the circle continuous casting billet of copper alloy obtained by step (1) is milled surface defect, makes billet in 680-
It is greater than 90% under rolling temperature between 800 DEG C with the single pass contraction percentage of area, is rolled with the mill speed of 10-35m/min
Shape is made, obtains roll line base；
(3) multi-pass continuous drawing
By line base obtained by step (2), multi-pass continuous drawing is carried out, the first passage drawing contraction percentage of area of control is no more than
40%, total drawing contraction percentage of area is no more than 75%, drawing speed 1-20m/min, until final finished size, obtains cold drawing
Line base.
Wherein, it opens in casting throwing production process, controlling alloy melt temperature in furnace, at 1200-1300 DEG C, control throwing is fast
Spend 1.5-3m/min, 80-120 times/min of frequency of billet withdrawal.Melt temperature is excessively high can be because of alloying component deviation and formation caused by scaling loss
Casting flaw, it is too low that bar stock can be made not lead not Chu Lai or break, be normally carried out throwing can not.Drawing speed needs to control in 1.5-
3m/min, the excessively high casting flaw that can generate of speed influences casting billet quality, too low to reduce production efficiency.Frequency of billet withdrawal will control
80-120 times/min, the too fast stability that can reduce system increases the friction between slab and crystallizer.Cross can make slowly alloy at
Divide uneven.
It imports in planetary rolling production process, it is 350-600rpm, mill speed 10- that planetary rolling, which turns round disk rotating speed,
35m/min, it is 4 ° -8 ° that planetary rolling mill roller, which is sent into angle, above-mentioned each combined factors effect, so that rolling temperature control exists
680-800℃.Wherein the contraction percentage of area should be greater than 90%, and it is insufficient that contraction percentage of area deficiency will lead to recrystal grain refinement.
Mill speed needs to control in 10-35m/min, and speed is excessively high to be will lead to rolled piece and bitten that roll is difficult, operation of rolling power can be born
Lotus increases, and speed is too low to will lead to the increase of rolled piece temperature drop, while reducing production efficiency.
According to material final performance or following process need that the cold drawing line base in step (3) can be carried out intermediate annealing or
Finished products, annealing temperature are 660-740 DEG C, annealing time 30-90min.Wherein annealing temperature needs to control in 660-740
DEG C, excessively high recrystal grain to be made to grow up, the too low recrystallization that will lead to cannot sufficiently occur.
In the present invention, using said components with when preparation method, obtained copper alloy wire does not contain nickel element, selects
CIE LAB colour system, with colorimetric parameter L*、a*And b*The color of alloy described, characterization tone is white, range exists
65<L*< 90, -1.9 < a*< 3.2, -2.4 <b*<9。
The fundamental difference of manufacturing method and the prior art of the present invention is, first using horizontal casting preparation circle casting
Base, continuous casting line base have continuous cylindrical crystalline texture, and cold working extending and deforming capacity is better than the line base of conventional cast, after being conducive to
The large deformation of continuous planetary rolling.Then, the present invention carries out surface machining removal of impurities processing to line base, then imports planetary rolling again
Equipment makes line base so that rolled piece temperature wink is increased to 680-800 DEG C by the deformation heat that large deformation is discharged after biting, and has foot
Enough degrees of superheat ensure that dynamic recrystallization occurs for rolled piece, are transformed into the soft state recrystallization group of suitable deep processing by cold conditions cast sturcture
It knits, perfect recrystallization is realized, to improve rolling efficiency and wire quality.Simultaneously as the line base of deformed area can be made to be in
Dynamic recrystallization state, therefore can permit using faster mill speed, to increase the yield of separate unit milling train.In addition,
Relatively narrow rolling temperature section keeps the wire temperature shut out uniform, has complete equi-axed crystal, makes subsequent multi pass drawing
With biggish deformability, and reduces and even eliminate intermediate annealing process.
The method simple production process of the present invention for preparing white copper alloy without nickel wire rod, process is short, high yield rate,
It is environmental-friendly, it can satisfy the demand to white copper alloy wire such as zipper, frame and various ornament materials.
Specific embodiment
Embodiment 1: the preparation having a size of Φ 4.0mm wire rod.
1) line base ingredient is (mass percent): Mn:13%, Zn:13%, Sn:1.0%, Al:1.0%, Ti:0.1%,
B:0.05, Si:0.12%, Ce:0.1%, surplus are the alloy of Cu and inevitable impurity.
2) it melting, horizontal casting: is matched according to alloy compositions 1), by pure manganese, pure zinc, fine aluminium, pure tin, copper-silicon, copper-
Zirconium intermediate alloy and cathode copper are fitted into intermediate frequency furnace, and fusing, slag making when being warming up to 1220 DEG C, take sample in furnace, spectrum analysis
After ingredient meets the requirements, horizontal casting is carried out.Confirmation horizontal caster a complete set of equipment works well, dummy device rotation is flexible
Afterwards, it opens casting throwing, in production process, controls alloy melt temperature in furnace and control drawing speed 1.5- in 1200-1300 DEG C of range
2.0m/min, 100 times/min of frequency of billet withdrawal.Circle slab diameter is Φ 28mm.Cut in above-mentioned wire rod 10mm × 10mm ×
The sample of 0.5mm, carries out coloration test after polishing, test result is shown in table 1.
3) face, planetary rolling are milled: 2) gained circle continuous casting billet being milled into surface defect, diameter is kept to Φ 27mm；Import row
Star milling train makes to be rolled under rolling temperature of the billet between 680-760 DEG C, the single pass contraction percentage of area be 93%, with
The mill speed of 20m/min carries out roll forming, obtains roll line base, and diameter is Φ 7.14mm；Planetary rolling is imported to produce
Cheng Zhong, it is 350-500rpm that planetary rolling, which turns round disk rotating speed,；It is 4 ° -6 ° that planetary rolling mill roller, which is sent into angle,.
4) by 3) gained line base, four-pass continuous drawing, the passage drawing contraction percentage of area point multi-pass continuous drawing: are carried out
Not Wei 30%, 25%, 25% and 20%, total contraction percentage of area be 68.6%, drawing speed 16m/min, be not necessarily to intermediate annealing, at
Product diameter is Φ 4mm, obtains cold drawing line base.Finished products are carried out to cold drawing line base, temperature is 700 DEG C, and annealing time is
60min。
Embodiment 2: the preparation having a size of Φ 1.5mm wire rod.
1) line base ingredient (mass percent): Mn:12%, Zn:12%, Sn:1.2%, Al:0.8%, Ti:0.3%, B:
0.15%, Si:0.25%, Ce:0.2%, surplus are the alloy of Cu and inevitable impurity.
2) it melting, horizontal casting: is matched according to alloy compositions 1), by pure manganese, pure zinc, fine aluminium, pure tin, copper-silicon, copper-
Zirconium intermediate alloy and cathode copper are fitted into intermediate frequency furnace, and fusing, slag making when being warming up to 1240 DEG C, take sample in furnace, spectrum analysis
After ingredient meets the requirements, horizontal casting is carried out.Confirmation horizontal caster a complete set of equipment works well, dummy device rotation is flexible
Afterwards, it opens casting throwing, in production process, controls alloy melt temperature in furnace and control drawing speed within the scope of 1200-1300 DEG C
1.8-2.3m/min, 110 times/min of frequency of billet withdrawal.Circle slab diameter is Φ 28mm.10mm × 10mm is cut in above-mentioned wire rod
The sample of × 0.5mm, carries out coloration test after polishing, test result is shown in table 1.
3) face, planetary rolling are milled: 2) gained circle continuous casting billet being milled into surface defect, diameter is kept to Φ 27mm；Import row
Star milling train makes to be rolled under rolling temperature of the billet between 700-800 DEG C, the single pass contraction percentage of area be 96%, with
The mill speed of 20m/min carries out roll forming, obtains the roll line base that diameter is Φ 5.4mm；Planetary rolling is imported to produce
Cheng Zhong, it is 450-600rpm that planetary rolling, which turns round disk rotating speed,；It is 6 ° -8 ° that planetary rolling mill roller, which is sent into angle,.
4) by 3) gained line base, four-pass continuous drawing, the passage drawing contraction percentage of area point multi-pass continuous drawing: are carried out
Not Wei 30%, 30%, 25% and 25%, total contraction percentage of area be 72.4%, line base diameter be Φ 2.84mm；Carry out intermediate move back
Fire, temperature are 710 DEG C, annealing time 50min；Four-pass continuous drawing is carried out again, and the passage drawing contraction percentage of area is respectively
30%, 30%, 25% and 25%, total contraction percentage of area is 72.4%, and line base diameter is Φ 1.5mm；Drawing speed is 13m/
min.Finished products are carried out to cold drawing line base, temperature is 690 DEG C, annealing time 40min.
Embodiment 3: the preparation having a size of Φ 3.0mm wire rod.
1) line base ingredient (mass percent): Mn:14%, Zn:11%, Sn:0.8%, Al:1.1%, Ti:0.05%, B:
0.1%, Si:0.18%, Ce:0.3%, surplus are the alloy of Cu and inevitable impurity.
2) it melting, horizontal casting: is matched according to alloy compositions 1), by pure manganese, pure zinc, fine aluminium, pure tin, copper-silicon, copper-
Zirconium intermediate alloy and cathode copper are fitted into intermediate frequency furnace, and fusing, slag making when being warming up to 1210 DEG C, take sample in furnace, spectrum analysis
After ingredient meets the requirements, horizontal casting is carried out.Confirmation horizontal caster a complete set of equipment works well, dummy device rotation is flexible
Afterwards, it opens casting throwing, in production process, controls alloy melt temperature in furnace and control drawing speed within the scope of 1200-1300 DEG C
1.7-2.2m/min, 80 times/min of frequency of billet withdrawal.Circle slab diameter is Φ 28mm.Cut in above-mentioned wire rod 10mm × 10mm ×
The sample of 0.5mm, carries out coloration test after polishing, test result is shown in table 1.
3) face, planetary rolling are milled: 2) gained circle continuous casting billet being milled into surface defect, diameter is kept to Φ 27mm；Import row
Star milling train makes to be rolled under rolling temperature of the billet between 700-780 DEG C, the single pass contraction percentage of area be 91%, with
The mill speed of 30m/min carries out roll forming, obtains the roll line base that diameter is Φ 8.1mm；Planetary rolling is imported to produce
Cheng Zhong, it is 400-550rpm that planetary rolling, which turns round disk rotating speed,；It is 4 ° -7 ° that planetary rolling mill roller, which is sent into angle,.
4) by 3) gained line base, four-pass continuous drawing, the passage drawing contraction percentage of area point multi-pass continuous drawing: are carried out
Not Wei 35%, 30%, 25% and 20%, total contraction percentage of area be 72.7%, line base diameter be Φ 4.55mm；Carry out intermediate move back
Fire, temperature are 720 DEG C, annealing time 80min；Two passage continuous drawings are carried out again, and the passage drawing contraction percentage of area is respectively
30% and 25%, total contraction percentage of area is 47.5%, and line base diameter is Φ 3.0mm；Drawing speed is 12m/min.To cold drawing
It pulls out line base and carries out finished products, temperature is 680 DEG C, annealing time 50min.
Embodiment 4: the preparation having a size of Φ 2.0mm wire rod.
1) line base ingredient is (mass percent): Mn:10%, Zn:14%, Sn:0.9%, Al:0.9%, Ti:0.45%,
B:0.8%, Si:0.3%, Ce:0.08%, surplus are the alloy of Cu and inevitable impurity.
2) it melting, horizontal casting: is matched according to alloy compositions 1), by pure manganese, pure zinc, fine aluminium, pure tin, copper-silicon, copper-
Zirconium intermediate alloy and cathode copper are fitted into intermediate frequency furnace, and fusing, slag making when being warming up to 1250 DEG C, take sample in furnace, spectrum analysis
After ingredient meets the requirements, horizontal casting is carried out.Confirmation horizontal caster a complete set of equipment works well, dummy device rotation is flexible
Afterwards, it opens casting throwing, in production process, controls alloy melt temperature in furnace and control drawing speed 1.9- in 1200-1300 DEG C of range
2.4m/min, 120 times/min of frequency of billet withdrawal.Circle slab diameter is Φ 28mm.Cut in above-mentioned wire rod 10mm × 10mm ×
The sample of 0.5mm, carries out coloration test after polishing, test result is shown in table 1.
3) face, planetary rolling are milled: 2) gained circle continuous casting billet being milled into surface defect, diameter is kept to Φ 27mm；Import row
Star milling train makes to be rolled under rolling temperature of the billet between 720-800 DEG C, the single pass contraction percentage of area be 92%, with
The mill speed of 25m/min carries out roll forming, obtains roll line base, and diameter is Φ 7.64mm；Planetary rolling is imported to produce
Cheng Zhong, it is 500-600rpm that planetary rolling, which turns round disk rotating speed,；It is 5 ° -8 ° that planetary rolling mill roller, which is sent into angle,.
4) by 3) gained line base, four-pass continuous drawing, the passage drawing contraction percentage of area point multi-pass continuous drawing: are carried out
Not Wei 35%, 30%, 25% and 25%, total contraction percentage of area be 74.4%, line base diameter be Φ 3.86mm；Carry out intermediate move back
Fire, temperature are 670 DEG C, annealing time 40min；Four-pass continuous drawing is carried out again, and the passage drawing contraction percentage of area is respectively
35%, 30%, 25% and 20%, total contraction percentage of area is 72.7%, and line base diameter is Φ 2.0mm；Drawing speed is 18m/
min.Finished products are carried out to cold drawing line base, temperature is 660 DEG C, annealing time 90min.
Table 1
From table 1 it follows that four embodiment alloys all have good white chromaticity.
Claims (2)
1. a kind of method for preparing white copper alloy without nickel wire rod, it is characterised in that: prepared using short route, specific steps
Are as follows:
(1) melting, horizontal casting
According to the white copper alloy component proportion of design, by pure manganese, pure zinc, fine aluminium, pure tin, copper-silicon, copper-zirconium intermediate alloy and
Cathode copper is fitted into intermediate frequency furnace, fusing, slag making, when being warming up to 1200-1250 DEG C, takes sample in furnace, spectrum analysis ingredient symbol
It closes after requiring, carries out horizontal casting；Confirmation horizontal caster a complete set of equipment works well, after dummy device rotation flexibly, Qi Zhu
Throwing obtains copper alloy circle continuous casting billet；
(2) face, planetary rolling are milled
Planetary rolling is imported after the circle continuous casting billet of copper alloy obtained by step (1) is milled surface defect, makes billet at 680-800 DEG C
Between rolling temperature under with the single pass contraction percentage of area be greater than 90%, be rolled into the mill speed of 10-35m/min
Shape obtains roll line base；
(3) multi-pass continuous drawing
By line base obtained by step (2), multi-pass continuous drawing is carried out, the first passage drawing contraction percentage of area of control is no more than
40%, total drawing contraction percentage of area is no more than 75%, drawing speed 1-20m/min, until final finished size, obtains cold drawing
Line base；
The white copper alloy without nickel wire rod, by weight percentage, raw material composition are as follows: Mn:10-14%, Zn:5-
15%, Sn:0.5-1.5%, Al:0.5-1.5%, Ti:0.05-0.5%, B:0.01-0.3%, Si:0.01-0.3%, Ce:
0.01-0.3%, surplus are Cu and inevitable impurity, and the sum of each component weight percent is 100%；
It opens in casting throwing production process, controls alloy melt temperature in furnace and control drawing speed 1.5-3m/ at 1200-1300 DEG C
Min, 80-120 times/min of frequency of billet withdrawal；
Importing planetary rolling revolution disk rotating speed in planetary rolling production process is 350-600rpm；Mill speed is 10-35m/
Min, it is 4 ° -8 ° that planetary rolling mill roller, which is sent into angle,.
2. a kind of method for preparing white copper alloy without nickel wire rod according to claim 1, it is characterised in that: to step
(3) resulting cold drawing line base carries out intermediate annealing or finished products, and annealing temperature is 660-740 DEG C, annealing time 30-
90min。
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| CN201710160401.7A CN106868336B (en) | 2017-03-17 | 2017-03-17 | A method of preparing white copper alloy without nickel wire rod |
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| CN112609103A (en) * | 2020-12-10 | 2021-04-06 | 中色奥博特铜铝业有限公司 | Nickel-free white copper alloy strip foil and preparation method thereof |
| CN114871632A (en) * | 2022-04-15 | 2022-08-09 | 中国船舶重工集团公司第七二五研究所 | Short-process preparation method of copper alloy welding wire for ship |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19624732A1 (en) * | 1996-06-21 | 1998-01-02 | Berkenhoff Gmbh | Alloy, especially for the manufacture of eyeglass frames, jewelry, etc. |
| EP0911419A1 (en) * | 1997-10-21 | 1999-04-28 | Ykk Corporation | Nickel-free copper alloy |
| JP3750897B2 (en) * | 1999-04-16 | 2006-03-01 | Ｙｋｋ株式会社 | Nickel-free white copper alloy |
| JP2001003125A (en) * | 1999-06-17 | 2001-01-09 | Ykk Corp | Nickel-free white copper alloy material |
| CN1162560C (en) * | 2001-07-31 | 2004-08-18 | 上海第一铜棒厂 | Anticorrosion white Cu-Mn alloy and method for making its wire material |
| CN101899588B (en) * | 2010-08-25 | 2011-09-21 | 江西理工大学 | Nickel-free white copper alloy containing rare earth additional elements and method for manufacturing plates made of same |
| CN102242292B (en) * | 2011-08-16 | 2012-07-25 | 中南大学 | Highly color change resistant, environment-friendly and easily cut white copper alloy and preparation method thereof |
| CN105063416A (en) * | 2015-07-22 | 2015-11-18 | 芜湖楚江合金铜材有限公司 | Environmental-friendly economical copper alloy wire and processing method thereof |
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