CN106868336A - A kind of method for preparing white copper alloy without nickel wire rod - Google Patents
A kind of method for preparing white copper alloy without nickel wire rod Download PDFInfo
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- CN106868336A CN106868336A CN201710160401.7A CN201710160401A CN106868336A CN 106868336 A CN106868336 A CN 106868336A CN 201710160401 A CN201710160401 A CN 201710160401A CN 106868336 A CN106868336 A CN 106868336A
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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
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- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- 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 field, and in particular to a kind of method that short route prepares white copper alloy without nickel wire rod, described preparation method includes：Melting, horizontal casting；Milling face, planetary rolling；Multi-pass continuous drawing, totally three steps, and in the middle of can according to the actual requirements being carried out during the 3rd step multi pass drawing or finished products.The planetary rolling technique of present invention application can be transformed into the soft state recrystallized structure of suitable deep processing by the cold conditions cast sturcture after instantaneous large deformation makes horizontal casting, need not be made annealing treatment again before making follow-up drawing processing.Therefore, compared with traditional handicraft, can significantly shorten technological process, reduce drawing passes, improve pass reduction, reduce and even save intermediate annealing operation, improve product lumber recovery.
Description
Technical field
The invention belongs to metal material processing technical field, and in particular to a kind of side for preparing white copper alloy without nickel wire rod
Method, a kind of method that especially short route prepares white copper alloy without nickel wire rod, be mainly used in the manufacturing slide fastener, button,
White copper alloy without nickel wire rod needed for frame and various ornament materials.
Background technology
The nickeliferous White brass alloy of tradition is because of its graceful color and luster, excellent corrosion resistance, intensity and good manufacturability higher
Can, it is widely used for manufacture frame, slide fastener, button, watch chain and art 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, these methods have that operation is more, lumber recovery is low, wire rod is more expensive to manufacture, it is unstable etc. to be made quality
Shortcoming.Meanwhile, it is not suitable for being entered with more new cold working casting and roll process because the hot-working of traditional copper-nickel alloy is interval very narrow
Row processing.And, Recent study is found, human body is contacted with nickel-containing material for a long time, there is sensitization and carcinogenic danger.Current various countries
Use to nickeliferous product is more and more stricter, has started to progressively prohibit the use of nickel-containing alloys to manufacture the product with human contact.
Therefore, many units are studied not nickeliferous white copper alloy material and its production method in recent years.Day
This YKK Co., Ltd has applied for four inventions of 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 systems alloy, its excess-three is Cu-Zn-Mn systems alloy, but their shortcoming is that given composition range is too wide,
The tone of resulting alloy, performance difference are too big, and the production method for being used is cast-be squeezed into for induction melting-copper mold great waves
Type, only gives the embodiment of a small amount of sample in the patent, to factory's large-scale production without actual directive significance.Shanghai first
Copper rod factory cooperates to have applied for a patent of invention without Alpaka in China in 2002 with Shanghai Communications University
(CN1334352), comprehensive analysis YKK Co., Ltd two patents (CN1219598 and CN1271023) not enough basis
On, give the scope for causing the performance of alloy more rational appropriate alloying component, also disclose adding for the alloy wire
Work method, but the adding method is more traditional non-vacuum melting, horizontal casting-cold drawn-cold rolling-cold drawn, and there is life in the method
Long flow path is produced, annealing times are more, and production cost is high, the low shortcoming of yield rate.Institutes Of Technology Of Jiangxi applied in 2010 in China
One patent of invention (CN101899588) without Alpaka, there is provided it is a kind of containing rare earth element without Alpaka alloy and
The processing method of its sheet material.Central South University has applied for a patent of invention without Alpaka in 2011 in China
(CN102242292), there is provided the processing method of a kind of fastness high free machining component and its sheet material without Alpaka alloy.
This production method of two patents not to wire rod carries out research report.
There are frame, slide fastener, button, watch chain and part ornament materials of wilderness demand etc. to lead to white copper alloy
Domain, is required for for white copper alloy manufacture being processed into line base, then carry 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.
The content of the invention
Contain nickel element for traditional copper-nickel alloy and be detrimental to health and production technology more backward and novel non-nickel copper-nickel alloy
There is significantly not enough 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 process making method of material, simple production process, flow is short, and high yield rate is environment-friendly.
A kind of white copper alloy without nickel wire rod of the present invention, by weight percentage, its raw material composition is：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 is Cu
With inevitable impurity, each component weight percent sum is 100%.
Its specific preparation method is：Prepared using short route, concretely comprised the following steps：
(1) melting, horizontal casting
According to the white copper alloy component proportion of design, will be closed in the middle of pure manganese, pure zinc, fine aluminium, pure tin, copper-silicon, copper-zirconium
Gold and cathode copper are fitted into intermediate frequency furnace, melt, slag making, when being warming up to 1200-1250 DEG C, take sample in stove, spectrum analysis into
Divide after meeting the requirements, carry out horizontal casting；Confirm horizontal caster a complete set of equipment work well, dummy device rotate flexibly after,
Casting throwing is opened, copper alloy circle continuous casting billet is obtained；
(2) milling face, planetary rolling
Planetary rolling is imported after step (1) gained copper alloy circle continuous casting billet is milled into surface defect, makes billet in 680-
Rolled more than 90%, with the mill speed of 10-35m/min with the single pass contraction percentage of area under rolling temperature between 800 DEG C
Shape is made, roll line base is obtained；
(3) multi-pass continuous drawing
By step (2) gained line base, 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, open in casting throwing production process, alloy melt temperature is at 1200-1300 DEG C in control stove, and control throwing is fast
Degree 1.5-3m/min, 80-120 times/min of frequency of billet withdrawal.Melt temperature is too high can alloying component deviation and formation caused by scaling loss
Casting flaw, it is too low that bar stock can be made can not lead out or break, throwing is normally carried out.Casting speed needs control in 1.5-
3m/min, speed is too high to produce the casting flaw to influence casting billet quality, too low to reduce production efficiency.Frequency of billet withdrawal will be controlled
80-120 times/min, the too fast stability that can reduce system, the friction between increase strand and crystallizer.Cross can make slowly alloy into
Divide uneven.
Import in planetary rolling production process, planetary rolling rotary disk rotating speed is 350-600rpm, and mill speed is 10-
35m/min, it is 4 ° -8 ° that planetary rolling mill roller 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 can cause recrystal grain to refine.
Mill speed needs control in 10-35m/min, speed is too high rolled piece can be caused to be nipped roll is difficult, operation of rolling power can be born
Lotus increases, and speed is too low to cause rolled piece temperature drop to increase, while reducing production efficiency.
According to material final performance or following process need can to carry out the cold drawing line base in step (3) intermediate annealing or
Finished products, annealing temperature is 660-740 DEG C, and annealing time is 30-90min.Wherein annealing temperature needs control in 660-740
DEG C, it is too high that recrystal grain can be made to grow up, it is too low to cause the recrystallization can not fully to occur.
In the present invention, using said components with when preparation method, the copper alloy wire for obtaining does not contain nickel element, selects
CIE LAB colour systems, use colorimetric parameter L*、a*And b*To describe the color of alloy, it is white that it characterizes tone, and its scope exists
65<L*<90, -1.9<a*<3.2, -2.4<b*<9。
Manufacture method of the present invention is to prepare circle casting using horizontal casting first with the fundamental difference of prior art
Base, continuous casting line base has continuous cylindrical crystalline texture, and its 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 treatment to line base, and planetary rolling is then imported again
Equipment, makes line base rolled piece temperature wink is increased to 680-800 DEG C by the deformation heat that large deformation is discharged after nipping, with foot
Enough degrees of superheat ensure that rolled piece occurrence dynamics are recrystallized, and the soft state recrystallization group of suitable deep processing is transformed into by cold conditions cast sturcture
Knit, realize perfect recrystallization, so as to improve rolling efficiency and wire quality.Simultaneously as can be in the line base of deformed area
Dynamic recrystallization state, therefore can allow using mill speed faster, so as to increased the yield of separate unit milling train.Additionally,
Narrower rolling temperature interval makes the wire temperature for shutting out uniform, with complete equi-axed crystal, makes follow-up multi pass drawing
With larger deformability, and reduce or even eliminate intermediate annealing process.
The method simple production process for preparing white copper alloy without nickel wire rod of the present invention, flow is short, high yield rate,
It is environment-friendly, the demand to white copper alloy wire such as slide fastener, frame and various ornament materials can be met.
Specific embodiment
Embodiment 1：Size is the preparation of Φ 4.0mm wire rods.
1) line base composition 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 is the alloy of Cu and inevitable impurity.
2) melting, horizontal casting：According to 1) alloy compositions proportioning, by pure manganese, pure zinc, fine aluminium, pure tin, copper-silicon, copper-
Zirconium intermediate alloy and cathode copper are fitted into intermediate frequency furnace, fusing, slag making, when being warming up to 1220 DEG C, take sample in stove, spectrum analysis
After composition meets the requirements, horizontal casting is carried out.Confirm that horizontal caster a complete set of equipment works well, dummy device rotates flexible
Afterwards, casting throwing is opened, in production process, alloy melt temperature is in 1200-1300 DEG C of scope, control casting speed 1.5- in control stove
2.0m/min, 100 times/min of frequency of billet withdrawal.The a diameter of Φ 28mm of circle strand.Cut in above-mentioned wire rod 10mm × 10mm ×
The sample of 0.5mm, carries out colourity test after polishing, test result is shown in table 1.
3) milling face, planetary rolling：2) gained circle continuous casting billet is 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, a diameter of Φ 7.14mm；Planetary rolling is imported to produce
Cheng Zhong, planetary rolling rotary disk rotating speed is 350-500rpm；It is 4 ° -6 ° that planetary rolling mill roller is sent into angle.
4) multi-pass continuous drawing：By 3) gained line base, four-pass continuous drawing, the passage drawing contraction percentage of area point are carried out
Not Wei 30%, 25%, 25% and 20%, total contraction percentage of area is 68.6%, drawing speed 16m/min, without intermediate annealing, into
The a diameter of Φ 4mm of product, obtain 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：Size is the preparation of Φ 1.5mm wire rods.
1) line base composition (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 is the alloy of Cu and inevitable impurity.
2) melting, horizontal casting：According to 1) alloy compositions proportioning, by pure manganese, pure zinc, fine aluminium, pure tin, copper-silicon, copper-
Zirconium intermediate alloy and cathode copper are fitted into intermediate frequency furnace, fusing, slag making, when being warming up to 1240 DEG C, take sample in stove, spectrum analysis
After composition meets the requirements, horizontal casting is carried out.Confirm that horizontal caster a complete set of equipment works well, dummy device rotates flexible
Afterwards, casting throwing is opened, in production process, alloy melt temperature controls casting speed in the range of 1200-1300 DEG C in control stove
1.8-2.3m/min, 110 times/min of frequency of billet withdrawal.The a diameter of Φ 28mm of circle strand.10mm × 10mm is cut in above-mentioned wire rod
The sample of × 0.5mm, carries out colourity test after polishing, test result is shown in table 1.
3) milling face, planetary rolling：2) gained circle continuous casting billet is 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 of a diameter of Φ 5.4mm；Planetary rolling is imported to produce
Cheng Zhong, planetary rolling rotary disk rotating speed is 450-600rpm；It is 6 ° -8 ° that planetary rolling mill roller is sent into angle.
4) multi-pass continuous drawing：By 3) gained line base, four-pass continuous drawing, the passage drawing contraction percentage of area point are carried out
Not Wei 30%, 30%, 25% and 25%, total contraction percentage of area be 72.4%, a diameter of Φ 2.84mm of line base；Centre is carried out to move back
Fire, temperature is 710 DEG C, and annealing time is 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%, a diameter of Φ 1.5mm of line base；Drawing speed is 13m/
min.Finished products are carried out to cold drawing line base, temperature is 690 DEG C, and annealing time is 40min.
Embodiment 3：Size is the preparation of Φ 3.0mm wire rods.
1) line base composition (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 is the alloy of Cu and inevitable impurity.
2) melting, horizontal casting：According to 1) alloy compositions proportioning, by pure manganese, pure zinc, fine aluminium, pure tin, copper-silicon, copper-
Zirconium intermediate alloy and cathode copper are fitted into intermediate frequency furnace, fusing, slag making, when being warming up to 1210 DEG C, take sample in stove, spectrum analysis
After composition meets the requirements, horizontal casting is carried out.Confirm that horizontal caster a complete set of equipment works well, dummy device rotates flexible
Afterwards, casting throwing is opened, in production process, alloy melt temperature controls casting speed in the range of 1200-1300 DEG C in control stove
1.7-2.2m/min, 80 times/min of frequency of billet withdrawal.The a diameter of Φ 28mm of circle strand.Cut in above-mentioned wire rod 10mm × 10mm ×
The sample of 0.5mm, carries out colourity test after polishing, test result is shown in table 1.
3) milling face, planetary rolling：2) gained circle continuous casting billet is 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 of a diameter of Φ 8.1mm；Planetary rolling is imported to produce
Cheng Zhong, planetary rolling rotary disk rotating speed is 400-550rpm；It is 4 ° -7 ° that planetary rolling mill roller is sent into angle.
4) multi-pass continuous drawing：By 3) gained line base, four-pass continuous drawing, the passage drawing contraction percentage of area point are carried out
Not Wei 35%, 30%, 25% and 20%, total contraction percentage of area be 72.7%, a diameter of Φ 4.55mm of line base；Centre is carried out to move back
Fire, temperature is 720 DEG C, and annealing time is 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%, a diameter of Φ 3.0mm of line base；Drawing speed is 12m/min.To cold drawn
Pulling out line base carries out finished products, and temperature is 680 DEG C, and annealing time is 50min.
Embodiment 4：Size is the preparation of Φ 2.0mm wire rods.
1) line base composition 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 is the alloy of Cu and inevitable impurity.
2) melting, horizontal casting：According to 1) alloy compositions proportioning, by pure manganese, pure zinc, fine aluminium, pure tin, copper-silicon, copper-
Zirconium intermediate alloy and cathode copper are fitted into intermediate frequency furnace, fusing, slag making, when being warming up to 1250 DEG C, take sample in stove, spectrum analysis
After composition meets the requirements, horizontal casting is carried out.Confirm that horizontal caster a complete set of equipment works well, dummy device rotates flexible
Afterwards, casting throwing is opened, in production process, alloy melt temperature is in 1200-1300 DEG C of scope, control casting speed 1.9- in control stove
2.4m/min, 120 times/min of frequency of billet withdrawal.The a diameter of Φ 28mm of circle strand.Cut in above-mentioned wire rod 10mm × 10mm ×
The sample of 0.5mm, carries out colourity test after polishing, test result is shown in table 1.
3) milling face, planetary rolling：2) gained circle continuous casting billet is 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, a diameter of Φ 7.64mm；Planetary rolling is imported to produce
Cheng Zhong, planetary rolling rotary disk rotating speed is 500-600rpm；It is 5 ° -8 ° that planetary rolling mill roller is sent into angle.
4) multi-pass continuous drawing：By 3) gained line base, four-pass continuous drawing, the passage drawing contraction percentage of area point are carried out
Not Wei 35%, 30%, 25% and 25%, total contraction percentage of area be 74.4%, a diameter of Φ 3.86mm of line base；Centre is carried out to move back
Fire, temperature is 670 DEG C, and annealing time is 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%, a diameter of Φ 2.0mm of line base；Drawing speed is 18m/
min.Finished products are carried out to cold drawing line base, temperature is 660 DEG C, and annealing time is 90min.
Table 1
From table 1 it follows that four embodiment alloys are respectively provided with good white chromaticity.
Claims (6)
1. a kind of white copper alloy without nickel wire rod, it is characterised in that：By weight percentage, its raw material composition is：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 is Cu and inevitable impurity, and each component weight percent sum is 100%.
2. a kind of white copper alloy without nickel wire rod according to claim 1, it is characterised in that：Described copper alloy wire,
From CIE LAB colour systems, the color of alloy is described with colorimetric parameter L*, a* and b*, it is white, its model that it characterizes tone
It is trapped among 65<L*<90, -1.9<a*<3.2, -2.4<b*<9.
3. a kind of method for preparing white copper alloy without nickel wire rod, it is characterised in that：Prepared using short route, its specific steps
For：
(1) melting, horizontal casting
According to design white copper alloy component proportion, 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 stove, spectrum analysis composition symbol
Close after requiring, carry out horizontal casting；Confirm horizontal caster a complete set of equipment work well, dummy device rotate flexibly after, Qi Zhu
Throwing, obtains copper alloy circle continuous casting billet；
(2) milling face, planetary rolling
Planetary rolling is imported after step (1) gained copper alloy circle continuous casting billet is milled into surface defect, makes billet at 680-800 DEG C
Between rolling temperature under be rolled into the single pass contraction percentage of area more than 90%, with the mill speed of 10-35m/min
Shape, obtains roll line base；
(3) multi-pass continuous drawing
By step (2) gained line base, 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.
4. a kind of method for preparing white copper alloy without nickel wire rod according to claim 3, it is characterised in that：To step
(1) open in casting throwing production process, alloy melt temperature controls casting speed 1.5-3m/ at 1200-1300 DEG C in control stove
Min, 80-120 times/min of frequency of billet withdrawal.
5. a kind of method for preparing white copper alloy without nickel wire rod according to claim 3, it is characterised in that：To step
(2) it is 350-600rpm to import planetary rolling rotary disk rotating speed in planetary rolling production process；Planetary rolling mill roller is sent into angle
It is 4 ° -8 °.
6. a kind of method for preparing white copper alloy without nickel wire rod according to claim 3, it is characterised in that：To step
(3) the cold drawing line base obtained by carries out intermediate annealing or finished products, and annealing temperature is 660-740 DEG C, and annealing time is 30-
90min。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN1177016A (en) * | 1996-06-21 | 1998-03-25 | 贝尔肯霍夫有限公司 | Alloy, in particular for use in mfr. of frames for glass, jewelery, and the like |
| CN1219598A (en) * | 1997-10-21 | 1999-06-16 | Ykk株式会社 | Nickel-free copper alloy |
| CN1271023A (en) * | 1999-04-16 | 2000-10-25 | Ykk株式会社 | White copper alloy without nickel |
| CN1278561A (en) * | 1999-06-17 | 2001-01-03 | Ykk株式会社 | White copper alloy material not containing nickel |
| CN1334352A (en) * | 2001-07-31 | 2002-02-06 | 上海第一铜棒厂 | Anticorrosion white Cu-Mn alloy and method for making its wire material |
| CN101899588A (en) * | 2010-08-25 | 2010-12-01 | 江西理工大学 | Nickel-free white copper alloy containing rare earth additional elements and method for manufacturing plates made of same |
| CN102242292A (en) * | 2011-08-16 | 2011-11-16 | 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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| 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 |
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