JP2513298B2 - Method for manufacturing conductive clad spring material having damping effect - Google Patents
Method for manufacturing conductive clad spring material having damping effectInfo
- Publication number
- JP2513298B2 JP2513298B2 JP1036626A JP3662689A JP2513298B2 JP 2513298 B2 JP2513298 B2 JP 2513298B2 JP 1036626 A JP1036626 A JP 1036626A JP 3662689 A JP3662689 A JP 3662689A JP 2513298 B2 JP2513298 B2 JP 2513298B2
- Authority
- JP
- Japan
- Prior art keywords
- copper
- stainless steel
- spring material
- conductive clad
- spring
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、振動を発生し易いところに使用して優れた
制振効果を有する導電用クラッドばね材の製造方法に関
するものである。Description: TECHNICAL FIELD The present invention relates to a method for producing a conductive clad spring material having excellent vibration damping effect when used in a place where vibration is likely to occur.
［従来の技術］ 最近の金属材料に対する特性の要求は、非常に多様化
し複雑化してきており、単一材料によってこれらの要求
に十分に対応することは困難な場合が多い。[Prior Art] Recent demands for properties of metallic materials have become extremely diverse and complicated, and it is often difficult to sufficiently meet these demands with a single material.
ステンレス鋼とくに析出硬化型セミオーステナイト系
ステンレス鋼（例えば17-7PH鋼）の両面に銅をクラッド
した銅／ステンレス鋼／銅の３層クラッド材は、ステン
レス鋼の有する優れたばね限界値や弾性係数と銅の有す
る優れた導電性とを効率よく組合せ通常のばね材料単独
では得られない高導電性とばね限界値および弾性係数を
併せ保有させたものであり、電子機器や小型電気部品な
どにおける高特性の導電用ばね材やその他の用途に実用
化されている。Stainless steel, especially precipitation hardened semi-austenitic stainless steel (for example, 17-7PH steel), is a copper / stainless steel / copper three-layer clad material with copper clad on both sides. Efficiently combining the excellent conductivity of copper with high conductivity, which cannot be obtained by ordinary spring materials alone, as well as spring limit value and elastic coefficient, and high characteristics in electronic devices and small electric parts. It has been put to practical use as a conductive spring material and other applications.
［発明が解決しようとする課題］ 上述した銅／ステンレス鋼／銅の導電用３層クラッド
材の用途の一つに、第４図に示した小型モータのブラシ
固定用ばね片としての使用がある。図において20はスリ
ットロータであり、上記クラッド材よりなるばね片22の
ばね付勢によってカーボンブラシ21をロータ20に押圧接
触させるものであって、クラッドばね片22はばね材とし
ての役目と同時に導電材としての役目をも果しているも
のである。[Problems to be Solved by the Invention] One of the applications of the above-mentioned copper / stainless steel / copper conductive three-layer clad material is to use it as a spring fixing spring for a small motor shown in FIG. . In the figure, 20 is a slit rotor, which presses the carbon brush 21 into contact with the rotor 20 by the spring bias of the spring piece 22 made of the above-mentioned clad material, and the clad spring piece 22 simultaneously functions as a spring material and is electrically conductive. It also serves as a material.
しかし、上記小型モータ用として使用されるばね片22
は、板厚が0.1mm程度と非常に薄く、ロータの回転が速
くなるにつれ（通常1,800rpm前後となる）、ロータ20と
ブラシ21の接触による振動が発生し、これがばね片22を
振動させて騒音発生の原因となることがある。However, the spring piece 22 used for the small motor is used.
Has a very thin plate thickness of about 0.1 mm, and as the rotor rotates faster (usually around 1,800 rpm), vibration occurs due to the contact between the rotor 20 and the brush 21, which causes the spring piece 22 to vibrate. May cause noise.
ばね片22になんらかの制振効果をもたせることでかか
る騒音の発生を抑止することができるが、現用の導電用
クラッド材にかかる効果を求めることはできない。Although it is possible to suppress the generation of such noise by providing the spring piece 22 with some vibration damping effect, it is not possible to obtain the effect of the current conductive clad material.
本発明の目的は、上記したような従来技術の問題点を
解消し、材料自身が制振効果を発揮することのできる新
規な導電用クラッドばね材の製造方法を提供しようとす
るものである。An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a novel method for producing a conductive clad spring material in which the material itself can exert a vibration damping effect.
［課題を解決するための手段］ 本発明は、銅／ステンレス鋼／銅の３層構造よりな
り、銅とステンレス鋼との界面に両者が冶金学的に強固
に接合している接合部とかかる接合をしていない非接合
部とが形成されてなる制振効果を有する導電用クラッド
ばね材の製造方法であって、前記銅とステンレス鋼を圧
延圧接させて前記導電用クラッドばね材を製造するに当
り、圧接する両金属の非接合部を形成したい表面に接合
妨害のための皮膜模様を形成し、両金属を重ね合せ圧接
したのち、必要な拡散熱処理を施して前記皮膜模様のな
い界面を冶金学的に接合させ、皮膜模様のある界面を非
接合状態とすることを特徴とする。[Means for Solving the Problems] The present invention relates to a joint portion which has a three-layer structure of copper / stainless steel / copper and is strongly metallurgically joined to the interface between copper and stainless steel. A method for producing a conductive clad spring material having a vibration damping effect by forming a non-joined part which is not joined, wherein the conductive clad spring material is produced by rolling pressure contact between the copper and stainless steel. In order to form a non-bonded portion of both metals to be pressed, a coating pattern is formed on the surface to prevent joining, and both metals are superposed and pressure-bonded to each other. It is characterized in that they are metallurgically bonded and the interface with a film pattern is in a non-bonded state.
［作用］ 銅とステンレスの界面に完全に接合していない部分を
故意に形成すれば、この非接合部が振動を吸収する効果
を発揮することになり、騒音の発生が大巾に低減され
る。[Operation] By intentionally forming a part that is not completely bonded to the interface between copper and stainless steel, this non-bonded part has the effect of absorbing vibration, and noise generation is greatly reduced. .
そのような非接合部は、印刷や転写法などを用い接合
する表面に求める非接合部に相当する接合妨害皮膜の極
薄層模様を形成しておくことで容易に形成できる。Such a non-bonding portion can be easily formed by forming an ultrathin layer pattern of the bonding-interfering film corresponding to the desired non-bonding portion on the surfaces to be bonded by using a printing method or a transfer method.
［実施例］ 以下に、本発明について実施例を参照し説明する。[Examples] Hereinafter, the present invention will be described with reference to Examples.
第１図は、本発明に係る３層クラッド材の断面図であ
る。１はステンレス鋼であり、ばね材を構成する場合で
あれば例えば15-7PH鋼（代表組成0.044％Ｃ、1.53％S
i、0.30％Mn、0.025％Ｐ、0.004％Ｓ、7.21％Ni、14.70
％Cr、0.70％Cu、0.43％Ti、0.025％Al、0.009％Ni）が
適当である。２は銅層であり、導電率の確保の上からす
れば純銅を用いることが好ましい。しかし、ばね性をよ
り向上させかつAgろう付けや半田付けにおける耐熱特性
を向上させる上からすれば、合金元素の添加が２重量％
未満のCu-Sn、Cu-Zr、Cu−Ｐ、Cu-Al2O3、Cu-Zn、Cu-C
r、Cu-Ti合金などを用いるのがよい。FIG. 1 is a sectional view of a three-layer clad material according to the present invention. 1 is stainless steel, and in the case of constituting a spring material, for example, 15-7PH steel (representative composition 0.044% C, 1.53% S
i, 0.30% Mn, 0.025% P, 0.004% S, 7.21% Ni, 14.70
% Cr, 0.70% Cu, 0.43% Ti, 0.025% Al, 0.009% Ni) are suitable. Reference numeral 2 denotes a copper layer, and it is preferable to use pure copper from the viewpoint of ensuring conductivity. However, from the standpoint of improving the spring property and improving the heat resistance of Ag brazing and soldering, the addition of alloying elements is 2% by weight.
Less than Cu-Sn, Cu-Zr, Cu-P, Cu-Al 2 O 3 , Cu-Zn, Cu-C
It is preferable to use r, Cu-Ti alloy or the like.
本発明においては、ステンレス鋼１と銅２との接合界
面には、両金属が冶金学的に強固に接合されている接合
部３とかかる完全な接合のなされていない非接合部４が
形成される。この非接合部４を設けることにより重ね板
効果が生じ、その部分での振動吸収作用が行なわれて、
振動に起因する騒音の発生を抑制するのである。In the present invention, at the joint interface between the stainless steel 1 and the copper 2, the joint portion 3 where both metals are strongly metallurgically joined and the non-joint portion 4 where such a complete joint is not formed are formed. It By providing the non-bonded portion 4, a laminated plate effect is generated, and a vibration absorbing action is performed in that portion,
The generation of noise due to vibration is suppressed.
このような非接合部４を形成するには、接合する金属
素材例えばステンレス鋼１の表面に、第２図に示すよう
な矩形状あるいは第３図に示すような縦縞状など所望の
模様をロール転写法やインクスクリーン印刷法など適宜
な方法で形成して接合妨害皮膜10を形成しておき、この
ような表面に相手側金属素材である銅２を重ね合せて圧
延、圧接し、前記ステンレス鋼１の表面の露出されてい
る露出面11と銅２とを接合させ、その後熱処理により界
面の拡散を行なわせれば、露出面11での接合界面は冶金
学的に強固に接合されて前記接合部３を形成し、皮膜10
の設けられた面では接合が行なわれず、非接合部４を形
成することができる。To form such a non-bonded portion 4, a desired pattern such as a rectangular shape as shown in FIG. 2 or a vertical striped shape as shown in FIG. 3 is rolled on the surface of the metal material to be bonded, for example, stainless steel 1. The joining-inhibiting film 10 is formed by an appropriate method such as a transfer method or an ink screen printing method, and copper 2 as a mating metal material is superposed on such a surface and rolled and pressure-welded to form the stainless steel. If the exposed surface 11 of the surface of No. 1 and the copper 2 are joined and then the interface is diffused by heat treatment, the joining interface on the exposed surface 11 is strongly metallurgically joined to form the above-mentioned joined portion. 3 to form a film 10
No joining is performed on the surface provided with, and the non-joining portion 4 can be formed.
実施例１ 板厚2.0mm、巾120mmの15-7PHステンレス鋼の表面に、
第２図に示すような模様の接合妨害皮膜をインクスクリ
ーン印刷法により形成し、その両面に厚さ0.2mm、巾120
mmの純銅を重ね合せ、冷間で圧延圧接して板厚0.56mmの
クラッド材とした。これを1000℃で拡散加熱して印刷イ
ンクの存在しない部分を完全に冶金学的に接合させ、そ
の後0.1mm厚に仕上げ圧延した。Example 1 On a surface of 15-7PH stainless steel having a plate thickness of 2.0 mm and a width of 120 mm,
A joint obstruction film with a pattern as shown in Fig. 2 is formed by the ink screen printing method, and has a thickness of 0.2 mm and a width of 120 mm on both sides.
mm pure copper was laid on top of each other, and cold rolled and pressure welded to obtain a clad material having a thickness of 0.56 mm. This was diffusion-heated at 1000 ° C. to completely metallurgically bond the portions where no printing ink was present, and then finish-rolled to a thickness of 0.1 mm.
これを打抜いてモータ用クラッドばね片とし、第４図
のようにロータ部分に組込んで実際にモータを回転させ
振動音を測定した。その結果、界面すべてが接合されて
いる従来例のクラッドばね片を使用したものと比較し
て、振動音が10dB低下することが確認された。This was punched out to form a clad spring piece for a motor, which was incorporated in the rotor portion as shown in FIG. 4 and the motor was actually rotated to measure the vibration noise. As a result, it was confirmed that the vibration noise was reduced by 10 dB as compared with the case of using the conventional clad spring piece in which all the interfaces were joined.
実施例２ 実施例１と同じ材料および寸法の組合せで第３図のよ
うに縦縞に接合妨害皮膜をロール転写した15-7PHステン
レス鋼の両面にCu-0.1％Zr合金条を圧延圧接し、1000℃
で拡散加熱後、0.10mmに仕上圧延し、打抜いて実施例１
と同じモータ用カーボンブラシ固定ばね片とした。実際
にモータを回転させ、従来例のクラッドばね片を用いた
場合と比較した結果、上記ばね片を用いたものは振動音
を15dB低下できることが確認された。Example 2 A Cu-0.1% Zr alloy strip was rolled and pressure-bonded to both sides of a 15-7PH stainless steel, which was roll-transferred with a joining interference film in vertical stripes as shown in FIG. ℃
Example 1 after diffusion heating at 0.10 mm, finish rolling to 0.10 mm, punching
Same as the carbon brush fixed spring piece for motor. As a result of actually rotating the motor and comparing with the case of using the conventional clad spring piece, it was confirmed that the one using the above spring piece can reduce the vibration noise by 15 dB.
なお、本発明は、第１図に示すように両面の銅の板厚
比が同じクラッド材に限らず、板厚比の異なる銅をクラ
ッドする場合も適用可能である。The present invention is not limited to the clad material having the same plate thickness ratio of copper on both surfaces as shown in FIG. 1, but can be applied to the case of clad copper having a different plate thickness ratio.
また、表面の銅あるいは銅合金を上下面とも同一材料
によらず、例えば上面を純銅とし下面を他の銅合金とし
たような異なる材料よりなる３層構造のクラッドばね材
にも応用可能である。Further, the present invention can be applied to a clad spring material having a three-layer structure in which copper or copper alloy on the surface is not made of the same material for the upper and lower surfaces but is made of different materials such as pure copper for the upper surface and another copper alloy for the lower surface. .
そしてまた、特性面からすれば、導電性をとくに望む
場合は銅層の構成比を大きくし、ばね性をとくに望む場
合はステンレス鋼の構成比を大きくするなど、単に構成
比を変えるだけでさまざまな要求特性に対応することが
可能となる。From a characteristic point of view, if the conductivity is particularly desired, the composition ratio of the copper layer is increased, and if the spring property is particularly desired, the composition ratio of stainless steel is increased. It is possible to meet various required characteristics.
［発明の効果］ 以上の通り、本発明によれば、優れたばね性と導電性
を有するばね材を安価な材料の組合せにより工業的に量
産できる上、その板厚構成比を自由に変えることでさま
ざまな特性に対応できるという導電用クラッドばね材特
有の効果を発揮できるものであり、併せて非接合部の面
積を選択することにより優れた制振効果を選び得るな
ど、ばね材としての性能向上に加え振動発生源に適確に
対応し得る意義は大きい。[Effects of the Invention] As described above, according to the present invention, a spring material having excellent spring properties and conductivity can be industrially mass-produced by combining inexpensive materials, and the plate thickness composition ratio can be freely changed. It is possible to exhibit the unique effect of the conductive clad spring material that can respond to various characteristics, and also improve the performance as a spring material by selecting the area of the non-bonded part for excellent vibration damping effect. In addition to that, it is of great significance to be able to respond appropriately to the vibration source.
第１図は本発明に係る実施例の断面図、第２および３図
はクラッドする一方の素材の表面に接合妨害皮膜を形成
した様子を示す説明図、第４図は本発明に係る導電用ク
ラッドばね材を小型モータのブラシ支持用ばね片として
使用している例を示す説明図である。 1:ステンレス鋼、2:銅、3:接合部、4:非接合部、10:接
合妨害皮膜、11:露出面。FIG. 1 is a cross-sectional view of an embodiment according to the present invention, FIGS. 2 and 3 are explanatory views showing a state in which a joint impeding film is formed on the surface of one material to be clad, and FIG. 4 is for conductive according to the present invention. It is explanatory drawing which shows the example which uses the clad spring material as the spring piece for brush support of a small motor. 1: Stainless steel, 2: Copper, 3: Bonded part, 4: Non-bonded part, 10: Bonding interference film, 11: Exposed surface.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−114414（ＪＰ，Ａ) 特開 昭63−246238（ＪＰ，Ａ) 特公 昭59−24893（ＪＰ，Ｂ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-114414 (JP, A) JP-A-63-246238 (JP, A) JP-B-59-24893 (JP, B2)
Claims (1)
り、銅とステンレス鋼との界面に両者が冶金学的に強固
に接合している接合部とかかる接合をしていない非接合
部とが形成されてなる制振効果を有する導電用クラッド
ばね材の製造方法であって、 前記銅とステンレス鋼を圧延圧接させて前記導電用クラ
ッドばね材を製造するに当り、圧接する両金属の非接合
部を形成したい表面に接合妨害のための皮膜模様を形成
し、両金属を重ね合せ圧接したのち、必要な拡散熱処理
を施して前記皮膜模様のない界面を冶金学的に接合さ
せ、皮膜模様のある界面を非接合状態とする導電用クラ
ッドばね材の製造方法。1. A copper / stainless steel / copper three-layer structure having a metallurgically strong joint at the interface between copper and stainless steel, and a non-joint at which such a joint is not formed. A method for producing a conductive clad spring material having a vibration damping effect comprising: forming a conductive clad spring material by rolling and pressure contacting the copper and stainless steel with each other. Form a coating pattern on the surface where you want to form a non-bonded portion to prevent bonding, overlay both metals and press-weld them, then perform the necessary diffusion heat treatment to bond the interface without the coating pattern metallurgically, A method for manufacturing a conductive clad spring material in which a patterned interface is not joined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1036626A JP2513298B2 (en) | 1989-02-16 | 1989-02-16 | Method for manufacturing conductive clad spring material having damping effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1036626A JP2513298B2 (en) | 1989-02-16 | 1989-02-16 | Method for manufacturing conductive clad spring material having damping effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02217184A JPH02217184A (en) | 1990-08-29 |
| JP2513298B2 true JP2513298B2 (en) | 1996-07-03 |
Family
ID=12475034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1036626A Expired - Lifetime JP2513298B2 (en) | 1989-02-16 | 1989-02-16 | Method for manufacturing conductive clad spring material having damping effect |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2513298B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130189541A1 (en) * | 2012-01-23 | 2013-07-25 | Hitachi Cable, Ltd. | Composite material |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008020276B4 (en) * | 2008-04-22 | 2019-07-25 | Thyssenkrupp Steel Europe Ag | Method for producing a coatable composite material and its use |
| JP6822915B2 (en) * | 2017-07-20 | 2021-01-27 | 株式会社特殊金属エクセル | Manufacturing method of electrode material |
| JP6806116B2 (en) * | 2018-08-24 | 2021-01-06 | 日立金属株式会社 | Foil for negative electrode current collector of secondary battery |
| JP7172311B2 (en) * | 2018-09-10 | 2022-11-16 | 日立金属株式会社 | Negative electrode current collector foil for secondary battery and manufacturing method thereof, negative electrode for secondary battery and manufacturing method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5924893A (en) * | 1982-07-30 | 1984-02-08 | 株式会社河合楽器製作所 | Reverberation plate for piano |
| JPS61114414A (en) * | 1984-11-08 | 1986-06-02 | 日立電線株式会社 | Clad spring material for electric conduction |
| JPS63246238A (en) * | 1987-04-01 | 1988-10-13 | 日新製鋼株式会社 | Vibration-damping metallic plate and manufacture thereof |
-
1989
- 1989-02-16 JP JP1036626A patent/JP2513298B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130189541A1 (en) * | 2012-01-23 | 2013-07-25 | Hitachi Cable, Ltd. | Composite material |
| US8771839B2 (en) * | 2012-01-23 | 2014-07-08 | Hitachi Metals, Ltd. | Composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02217184A (en) | 1990-08-29 |
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