JPH01180931A - Copper alloy wire - Google Patents
Copper alloy wireInfo
- Publication number
- JPH01180931A JPH01180931A JP447088A JP447088A JPH01180931A JP H01180931 A JPH01180931 A JP H01180931A JP 447088 A JP447088 A JP 447088A JP 447088 A JP447088 A JP 447088A JP H01180931 A JPH01180931 A JP H01180931A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- drawability
- heat resistance
- weight
- copper alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000881 Cu alloy Inorganic materials 0.000 title claims description 23
- 239000010949 copper Substances 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 9
- 229910045601 alloy Inorganic materials 0.000 abstract description 8
- 239000000956 alloy Substances 0.000 abstract description 8
- 238000005491 wire drawing Methods 0.000 abstract description 8
- 229910052802 copper Inorganic materials 0.000 abstract description 6
- 238000000137 annealing Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 229910017526 Cu-Cr-Zr Inorganic materials 0.000 description 3
- 229910017810 Cu—Cr—Zr Inorganic materials 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
Landscapes
- Conductive Materials (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は、銅細線又は磁気ヘッド用巻線芯線等として使
用される銅合金線材に関し、特に、耐熱性及び機械的強
度か優れていると共に、伸線加工性か向上し、線径か0
.1u+m以下の極細線として好適の銅合金線材に関す
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a copper alloy wire used as a thin copper wire or a winding core wire for a magnetic head, and in particular, it has excellent heat resistance and mechanical strength. , wire drawability improved, wire diameter reduced to 0
.. The present invention relates to a copper alloy wire suitable as an ultrafine wire of 1 u+m or less.
[従来の技術]
銅細線及び磁気ヘット用巻線芯線(マクネットワイヤ用
芯線)等の分野においては、近時の電子機器の発達に伴
い、線径か0.1+++m以下の極細銅線、特に線径か
50μm以下の極細銅線に対する需要が急増している。[Prior Art] In the field of fine copper wire and magnetic head winding core wire (core wire for Macnet wire), etc., with the recent development of electronic equipment, ultra-fine copper wire with a wire diameter of 0.1 + + + m or less, especially Demand for ultra-fine copper wire with a wire diameter of 50 μm or less is rapidly increasing.
しかしながら、銅線の極細線化に伴い、その製造時に断
線が発生し易くなるという不都合か生し、このため、伸
線加工性を高めた銅合金か提案されている(特公昭60
−12415号)。However, as copper wires become finer, wire breakage becomes more likely to occur during manufacture, which is why copper alloys with improved wire drawability have been proposed.
-12415).
[発明が解決しようとする課題]
しかしながら、マクネットワイヤ用芯線のように、伸線
加工後にエナメル焼き付けを行うような場合においては
、上述の従来の銅合金線材は焼き付は時の熱処理で機械
的強度か低下し、断線し易くなる。このため、従来の銅
合金線材は伸線加工後の熱処理温度が比較的低いものに
しか適用することかてきないという問題点かあった。[Problems to be Solved by the Invention] However, in cases where enamel baking is performed after wire drawing, such as core wire for Macnet wire, the above-mentioned conventional copper alloy wire material cannot be baked by mechanical heat treatment during heat treatment. The strength of the wire will decrease, making it easier to break the wire. For this reason, there was a problem in that conventional copper alloy wire rods could only be applied to wire rods where the heat treatment temperature after wire drawing was relatively low.
また一方、前述の電子機器等の用途においては、適度の
伸ひを有すると共に、耐熱性及び機械的強度も優れた銅
合金線材に対する需要も多くなってきているか、従来の
銅合金線材においては、このように、強度及び耐熱性と
、伸線加工性との双方を満足するものは得られなかった
。On the other hand, in applications such as the above-mentioned electronic devices, there is an increasing demand for copper alloy wires that have moderate elongation and excellent heat resistance and mechanical strength. Thus, it has not been possible to obtain a wire that satisfies both strength, heat resistance, and wire drawability.
更に、銅細線又はマクネットワイヤ用芯線としては、上
述の特性の外に、基本的な要求として導電性が優れてい
ることも必要である。従って、導電性、強度及び耐熱性
並ひに伸線加工性のいずれも優れた銅合金線の開発か要
望されている。Furthermore, in addition to the above-mentioned characteristics, the core wire for copper thin wire or Macnet wire must also have excellent conductivity as a basic requirement. Therefore, there is a demand for the development of a copper alloy wire that has excellent conductivity, strength, heat resistance, and wire drawability.
本発明はかかる問題点に鑑みてなされたものであって、
導電性を損なうことなく、耐熱性及び機械的強度か優れ
ていると共に、伸線加工性が優れ、極細線化が容易の銅
合金線材を提供することを目的とする。The present invention has been made in view of such problems, and includes:
It is an object of the present invention to provide a copper alloy wire that has excellent heat resistance and mechanical strength without impairing conductivity, has excellent wire drawability, and can be easily made into ultra-thin wire.
[課題を解決するための手段]
本発明に係る銅合金線材は、0005乃至0.03重量
%のSb、0.01乃至0.05重量%のZr及び02
乃至10重量%のCrを含有し、残部がCu及び不可避
的不純物であることを特徴とする。[Means for Solving the Problems] The copper alloy wire according to the present invention contains 0005 to 0.03% by weight of Sb, 0.01 to 0.05% by weight of Zr, and 0.02 to 0.03% by weight of Sb.
It is characterized in that it contains Cr in an amount of 10 to 10% by weight, with the remainder being Cu and inevitable impurities.
[作用]
Cu−Cr−Zr系の銅合金は、耐熱性及び機械的強度
か優れた銅合金として従来がら実用化されている。しか
しなから、このCu −Cr −Z r系合金は、線径
が50μm以下の極細線に伸線加工する際に断線するこ
とが多く、このため、伸線加工性か悪い。[Function] Cu-Cr-Zr based copper alloys have been put to practical use as copper alloys with excellent heat resistance and mechanical strength. However, this Cu-Cr-Zr alloy often breaks when drawn into an ultrafine wire with a wire diameter of 50 μm or less, and therefore has poor wire drawability.
本願発明者等は、このCu−Cr−Zr系の銅合金をヘ
ースにしてその伸線加工性を向上させるへく、種々の元
素を添加した銅合金について、線径か30μm以下の極
細線に伸線加工する実験を繰り返した。In order to improve the wire drawability of this Cu-Cr-Zr based copper alloy, the inventors of the present application have developed an ultra-fine wire with a wire diameter of 30 μm or less using a copper alloy to which various elements have been added. We repeated the wire drawing experiment.
その結果、適当量のCr及びZrを含有する銅合金に対
し、sbを適当量添加することによって、線径が30μ
m以下の極細線にまで安定して連続伸線することか可能
であることを見い出した。本発明はこのような知見に基
づいてなされたものである。As a result, by adding an appropriate amount of sb to a copper alloy containing appropriate amounts of Cr and Zr, the wire diameter could be increased to 30 μm.
It has been found that it is possible to stably and continuously draw ultra-fine wires down to the diameter of 100 m or less. The present invention has been made based on such knowledge.
以下、本発明に係る銅合金線材の成分添加理由及びその
組成限定理由について説明する。Hereinafter, the reason for adding the components of the copper alloy wire according to the present invention and the reason for limiting the composition thereof will be explained.
影鄭
先ず、sbは銅合金の伸線加工性を向上させる元素であ
る。この伸線加工性の向上効果は、sb含有量か0 、
005重量%より低い場合は不十分である。逆に、sb
含有量か0.03重量%を超えると、導電性が著しく低
下してしまう。このため、sb含有量は0.005乃至
003重量%とする。First of all, sb is an element that improves the wire drawability of copper alloys. This improvement in wire drawability is due to the sb content of 0,
If it is lower than 0.005% by weight, it is insufficient. On the contrary, sb
If the content exceeds 0.03% by weight, the conductivity will drop significantly. Therefore, the sb content is set to 0.005 to 003% by weight.
Zr
Zrは銅合金の耐熱性を向上させる。Zr含有量か0.
01重量%未満の場合は十分な耐熱性を得ることかでき
ない。逆に、Zr含有量が0.05重量%を超えると、
伸線加工性が著しく劣化するのに加え、高価なZrを多
量に添加することは製造コストの上昇をもたらす。従っ
て、Zr含有量は0.01乃至0.05重量%にする。Zr Zr improves the heat resistance of copper alloys. Zr content is 0.
If the amount is less than 0.1% by weight, sufficient heat resistance cannot be obtained. Conversely, when the Zr content exceeds 0.05% by weight,
In addition to significantly deteriorating wire drawability, adding a large amount of expensive Zr causes an increase in manufacturing costs. Therefore, the Zr content should be 0.01 to 0.05% by weight.
声量
Crは銅合金の機械的強度を向上させる。Cr含有量か
02重量%未満の場合は機械的強度が不足する。一方、
Cr含有量か10重量%を超えると、導電性か低下する
と共に伸線加工性が劣化する。従って、Cr含有量は0
2乃至10重量%にする。The volume Cr improves the mechanical strength of the copper alloy. If the Cr content is less than 0.2% by weight, mechanical strength will be insufficient. on the other hand,
When the Cr content exceeds 10% by weight, the conductivity decreases and the wire drawability deteriorates. Therefore, the Cr content is 0
2 to 10% by weight.
[実施例]
次に、本発明の実施例について、本発明にて規定した組
成範囲から外れる比較例と比較して説明する。純度か9
9 、995重量%の電解銅を溶解し、脱酸処理した後
、Sb、Zr又はCrの各添加元素を母合金の状態て添
加し、下記第1表に示す組成の実施例1乃至5及び比較
例1乃至7の各合金を溶製した。[Example] Next, Examples of the present invention will be described in comparison with Comparative Examples outside the composition range defined in the present invention. Purity or 9
9. After melting 995% by weight of electrolytic copper and deoxidizing it, each additive element of Sb, Zr or Cr was added in the form of a master alloy to form Examples 1 to 5 and the compositions shown in Table 1 below. Each alloy of Comparative Examples 1 to 7 was melted.
そして、この各合金を直径か17mmのロッドに鋳造し
、次いで、このロッドに対し、伸線加工と、焼鈍とを繰
り返して線径か30μmの極細線を得た。Each of these alloys was cast into a rod with a diameter of about 17 mm, and then wire drawing and annealing were repeated on this rod to obtain an ultrafine wire with a wire diameter of about 30 μm.
=6−
第1表
これらの実施例1乃至5及び比較例1乃至7の各合金の
極細線に対し、伸線加工性と、強度及び仲ひ等の各特性
とを求めた。その結果を下記第2表に示す。=6- Table 1 The wire drawability, strength, and other properties of the ultrafine wires of the alloys of Examples 1 to 5 and Comparative Examples 1 to 7 were determined. The results are shown in Table 2 below.
下記第2表の伸線加工性欄は、この伸線加工において、
1 kgの線材を伸線加工して断線回数か0回であった
場合を○、同じく断線回数か1乃至3回の場合を△、断
線回数が4回以上の場合を×で示す。なお、この伸線加
工性欄は、70μm、50μn1.40μm、30μm
の線径に夫々伸線加工した場合のその各伸線工程におけ
る断線回数を基に表示したちのである。The wire drawability column in Table 2 below shows that in this wire drawing process,
When a 1 kg wire rod is drawn, the number of wire breaks is 0, and the number of wire breaks is 0. Similarly, the number of wire breaks is 1 to 3. The number of wire breaks is 1 to 3. The number of wire breaks is 4 or more. In addition, this wire drawability column is 70 μm, 50 μm, 1.40 μm, 30 μm
It is displayed based on the number of wire breaks in each wire drawing process when wire is drawn to a wire diameter of .
また、第2表には、30μmの線径にまで伸線加工した
場合のその線材の導電率、引張強さ及び伸び、並ひに半
軟化温度も併せて掲載した。但し、導電率の単位は%I
AC8(純銅焼鈍材の導電率を100したときの値)で
ある。Table 2 also lists the electrical conductivity, tensile strength, elongation, and semi-softening temperature of the wire when drawn to a wire diameter of 30 μm. However, the unit of conductivity is %I
AC8 (value when the conductivity of pure copper annealed material is set as 100).
第2表
この第2表から明らかなように、比較例1,4゜6.7
は伸線加工性か悪く、比較例2,4は導電率か低く、比
較例3,5.7は強度か低く、比較例2.3は伸びか不
足し、比較例3,5.7は半軟化温度か低く耐熱性か悪
い。これに対し、実施例1乃至5の各銅合金線材はいず
れも90%lAC3以上の子分な導電率を確保しつつ、
引張強さか高いと共に適度の伸びを有し、また、半軟化
温度が高く耐熱性か優れている。しかも、各段階の伸線
工程において断線が発生せず、極めて優れた伸線加工性
を示す。このなめ、線径か30μmの極細線にまて安定
して伸線加工することかてきた。Table 2 As is clear from this Table 2, Comparative Example 1, 4゜6.7
has poor wire drawability, comparative examples 2 and 4 have low conductivity, comparative examples 3 and 5.7 have low strength, comparative example 2.3 has insufficient elongation, and comparative examples 3 and 5.7 have poor wire drawability. It has a low semi-softening temperature and poor heat resistance. On the other hand, each of the copper alloy wires of Examples 1 to 5 secured a conductivity of 90% lAC3 or higher,
It has high tensile strength and moderate elongation, and has a high semi-softening temperature and excellent heat resistance. Furthermore, wire breakage does not occur during each step of the wire drawing process, and it exhibits extremely excellent wire drawability. Using this method, we were able to stably draw ultra-fine wires with a wire diameter of 30 μm.
[発明の効果]
以上説明したように、本発明に係る銅合金線材は、0
、005乃至003重量%のSb、0.01乃至0.0
5重量%のZr及び0,2乃至1.0重量%のCrを含
有するから、引張強度か高く、半軟化温度が高くて耐熱
性か優れていると共に、適度の伸びを有していて伸線加
工性か優れており、線径か30μm以下の極細線も安定
して伸線加工して量産することかできる。更に、この銅
合金線材は、十分な導電率を有している。[Effect of the invention] As explained above, the copper alloy wire according to the present invention has a
, 005-003% by weight of Sb, 0.01-0.0
Since it contains 5% by weight of Zr and 0.2 to 1.0% by weight of Cr, it has high tensile strength, a high half-softening temperature, and excellent heat resistance, and has a moderate elongation. It has excellent wire processability, and even ultra-fine wires with a wire diameter of 30 μm or less can be stably drawn and mass-produced. Furthermore, this copper alloy wire has sufficient electrical conductivity.
Claims (1)
乃至0.05重量%のZr及び0.2乃至1.0重量%
のCrを含有し、残部がCu及び不可避的不純物である
ことを特徴とする銅合金線材。(1) 0.005 to 0.03% by weight of Sb, 0.01
0.05% to 0.05% Zr and 0.2% to 1.0% by weight
A copper alloy wire material containing Cr, with the balance being Cu and inevitable impurities.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP447088A JPH01180931A (en) | 1988-01-12 | 1988-01-12 | Copper alloy wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP447088A JPH01180931A (en) | 1988-01-12 | 1988-01-12 | Copper alloy wire |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01180931A true JPH01180931A (en) | 1989-07-18 |
Family
ID=11585010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP447088A Pending JPH01180931A (en) | 1988-01-12 | 1988-01-12 | Copper alloy wire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01180931A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04214829A (en) * | 1990-11-30 | 1992-08-05 | Tatsuta Electric Wire & Cable Co Ltd | High strength and high conductivity copper alloy thin wire and its manufacture |
CN103725918A (en) * | 2013-12-19 | 2014-04-16 | 铜陵金力铜材有限公司 | Rare earth copper alloy wire and preparation method thereof |
CN104018023A (en) * | 2014-05-06 | 2014-09-03 | 阜阳市光普照明科技有限公司 | Method for preparing copper alloy bonding wire for light-emitting diode (LED) encapsulation |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59193233A (en) * | 1983-04-15 | 1984-11-01 | Toshiba Corp | Copper alloy |
JPS6012415A (en) * | 1983-06-27 | 1985-01-22 | Shibuya Kogyo Co Ltd | Operation control method in rotary transfer device |
-
1988
- 1988-01-12 JP JP447088A patent/JPH01180931A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59193233A (en) * | 1983-04-15 | 1984-11-01 | Toshiba Corp | Copper alloy |
JPS6012415A (en) * | 1983-06-27 | 1985-01-22 | Shibuya Kogyo Co Ltd | Operation control method in rotary transfer device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04214829A (en) * | 1990-11-30 | 1992-08-05 | Tatsuta Electric Wire & Cable Co Ltd | High strength and high conductivity copper alloy thin wire and its manufacture |
CN103725918A (en) * | 2013-12-19 | 2014-04-16 | 铜陵金力铜材有限公司 | Rare earth copper alloy wire and preparation method thereof |
CN104018023A (en) * | 2014-05-06 | 2014-09-03 | 阜阳市光普照明科技有限公司 | Method for preparing copper alloy bonding wire for light-emitting diode (LED) encapsulation |
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