JPH0451035Y2 - - Google Patents
Info
- Publication number
- JPH0451035Y2 JPH0451035Y2 JP7717087U JP7717087U JPH0451035Y2 JP H0451035 Y2 JPH0451035 Y2 JP H0451035Y2 JP 7717087 U JP7717087 U JP 7717087U JP 7717087 U JP7717087 U JP 7717087U JP H0451035 Y2 JPH0451035 Y2 JP H0451035Y2
- Authority
- JP
- Japan
- Prior art keywords
- linear body
- melting point
- cross
- oxide layer
- low melting
- 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
Links
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
- Chemical Treatment Of Metals (AREA)
- Thyristors (AREA)
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案は、ボビン等に巻回して取り扱う低融点
金属線状体に関するものである。[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to a low melting point metal linear body that is handled by being wound around a bobbin or the like.
〈従来の技術〉
低融点金属体、例えばSn−Pb系合金（はんだ）
の線状体として外径0.5mm以下の細線が製造され
ているが、細線であることに加え材質自体の機械
的強度が著しく低いので、全体の引張強度が非常
に小さく、その用途が制限されている。<Conventional technology> Low melting point metal body, such as Sn-Pb alloy (solder)
A thin wire with an outer diameter of 0.5 mm or less is manufactured as a linear body, but in addition to being thin, the mechanical strength of the material itself is extremely low, so the overall tensile strength is extremely low, limiting its use. ing.
〈解決しようとする問題点〉
而して、その用途の拡張を図るためには、引張
強度の向上が不可欠であり、その一方法として細
線表面に酸化層を生成させることが有効であると
考えられる。低融点金属の酸化物のヤング率は、
低融点金属自体のヤング率よりも大であり、細線
表面に酸化物層を生成させれば、ヤング率の大な
る酸化物層に多くの引張力を分担させ得、内部の
低融点金属体の張力分担度をそれだけ小さくし得
るのである。<Problem to be solved> In order to expand its uses, it is essential to improve its tensile strength, and we believe that one effective way to do this is to generate an oxide layer on the surface of the thin wire. It will be done. The Young's modulus of the oxide of a low melting point metal is
It is larger than the Young's modulus of the low melting point metal itself, and if an oxide layer is generated on the surface of the thin wire, the oxide layer with a large Young's modulus can share a large amount of tensile force, and the inner low melting point metal body This allows the tension distribution ratio to be reduced accordingly.
この場合、低融点金属、例えばはんだの酸化物
は、はんだの機能を阻害するから、酸化物の量を
極力少なくする必要がある。すなわち、少ない酸
化物量で内部の無酸化金属体の張力分担度を小さ
くする必要がある。しかしながら、断面円形の金
属細線の表面に酸化物層を生成させても、この張
力分担度の効果的な低減は達成できない。 In this case, since oxides of low melting point metals, such as solder, inhibit the function of the solder, it is necessary to minimize the amount of oxides. That is, it is necessary to reduce the tension sharing ratio of the internal non-oxidized metal body with a small amount of oxide. However, even if an oxide layer is formed on the surface of a thin metal wire having a circular cross section, an effective reduction in the degree of tension sharing cannot be achieved.
本考案の目的は、表面の酸化物層によつて内部
の無酸化金属部分の張力分担度を効果的に低減で
きる低融点金属線状体を提供することにある。 An object of the present invention is to provide a low melting point metal linear body that can effectively reduce the tension sharing ratio of the non-oxidized metal portion inside by the oxide layer on the surface.
〈問題点を解決するための技術的手段〉
本考案に係る低融点金属線状体は丸みを有する
断面形状であつて、平均外径が0.5mm以下の線状
体の長手方向に凹溝を設け、表面には酸化層を設
けたことを特徴とする構成である。<Technical means for solving the problem> The low melting point metal linear body according to the present invention has a rounded cross-sectional shape, and has a concave groove in the longitudinal direction of the linear body with an average outer diameter of 0.5 mm or less. The structure is characterized in that an oxide layer is provided on the surface.
〈実施例〉 以下、図面により本考案を説明する。<Example> The present invention will be explained below with reference to the drawings.
図において、１はSn−Pb系合金からなる線状
体であり、丸みを有する断面形状であり、平均外
径は0.5mm以下である。２は線状体の長手方向に
設けた凹溝であり、この溝の内面並びに各角も丸
みを有する面としてある。３は線状体の表面に設
けた酸化層である。 In the figure, numeral 1 is a linear body made of Sn--Pb alloy, has a rounded cross-sectional shape, and has an average outer diameter of 0.5 mm or less. Reference numeral 2 denotes a concave groove provided in the longitudinal direction of the linear body, and the inner surface and each corner of this groove are also rounded surfaces. 3 is an oxide layer provided on the surface of the linear body.
この酸化層の断面積をA1、ヤング率をE1とし
無酸化の金属体部分の断面積をA2、ヤング率を
E2とすれば、無酸化金属体部分の引張力負担度
Ｓ（％）は、
Ｓ＝１／１＋E1／E2・A1／A2×100 −
である。 The cross-sectional area of this oxidized layer is A 1 , Young's modulus is E 1 , the cross-sectional area of the non-oxidized metal body is A 2 , and Young's modulus is E 1 .
If E 2 is assumed, the tensile force burden S (%) of the non-oxidized metal body portion is S=1/1+E 1 /E 2 ·A 1 /A 2 ×100 − .
第１式におけるA1／A2（A1：酸化層の断面積、
A2：無酸化の金属体部分の断面積）は、断面真
円形の場合が最小であり、上記溝を設けた断面形
状の場合では、同一断面積でも表面積を大にでき
るので、Ｓを大にできる。従つて、無酸化金属体
部分の引張力負担度を小さくできる。 A 1 /A 2 (A 1 : cross-sectional area of oxide layer,
A2 : The cross-sectional area of the non-oxidized metal body part is the minimum when the cross-section is a perfect circle, and in the case of the cross-sectional shape with the grooves mentioned above, the surface area can be increased even with the same cross-sectional area, so S can be increased. Can be done. Therefore, the tensile force burden on the non-oxidized metal body portion can be reduced.
〈考案の効果〉
このように本考案に係る低融点金属線状体にお
いては、表面酸化層の生成下、無酸化金属体部分
の引張力負担度を充分に小さくでき、その酸化層
の断面積を小さくしても、無酸化金属体部分に作
用する引張力を充分に低くできる。また、断面の
非円形化を表面に凹溝を設けることにより行つて
おり、凸条を設ける場合とは異なり、ボビン等に
巻き付けたときの線状体の損傷（交叉箇所での凸
条のくい込み）を防止できる。<Effect of the invention> As described above, in the low melting point metal linear body according to the present invention, under the formation of the surface oxidized layer, the degree of tensile force burden on the non-oxidized metal body portion can be sufficiently reduced, and the cross-sectional area of the oxidized layer can be reduced. Even if it is made small, the tensile force acting on the non-oxidized metal body portion can be sufficiently reduced. In addition, the cross section is made non-circular by providing concave grooves on the surface, and unlike the case where protrusions are provided, damage to the linear body when wound around a bobbin etc. ) can be prevented.
図は本考案に係る低融点金属線状体を示す説明
図である。
図において、１は線状体、２は凹溝、３は酸化
層である。
The figure is an explanatory diagram showing a low melting point metal linear body according to the present invention. In the figure, 1 is a linear body, 2 is a groove, and 3 is an oxide layer.
Claims (1)
mm以下の線状体の長手方向に凹溝を設け、表面に
は酸化層を設けたことを特徴とする低融点金属線
状体。 Rounded cross-sectional shape with an average outer diameter of 0.5
1. A low-melting point metal linear body, characterized by having a concave groove in the longitudinal direction of the linear body having a diameter of mm or less, and an oxide layer provided on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7717087U JPH0451035Y2 (en) | 1987-05-21 | 1987-05-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7717087U JPH0451035Y2 (en) | 1987-05-21 | 1987-05-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63184687U JPS63184687U (en) | 1988-11-28 |
| JPH0451035Y2 true JPH0451035Y2 (en) | 1992-12-01 |
Family
ID=30924927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7717087U Expired JPH0451035Y2 (en) | 1987-05-21 | 1987-05-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0451035Y2 (en) |
-
1987
- 1987-05-21 JP JP7717087U patent/JPH0451035Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63184687U (en) | 1988-11-28 |
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