JP2537813B2 - Method of manufacturing tungsten wire - Google Patents
Method of manufacturing tungsten wireInfo
- Publication number
- JP2537813B2 JP2537813B2 JP61238371A JP23837186A JP2537813B2 JP 2537813 B2 JP2537813 B2 JP 2537813B2 JP 61238371 A JP61238371 A JP 61238371A JP 23837186 A JP23837186 A JP 23837186A JP 2537813 B2 JP2537813 B2 JP 2537813B2
- Authority
- JP
- Japan
- Prior art keywords
- tungsten wire
- wire
- tungsten
- manufacturing
- present
- 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
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims description 35
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 claims description 16
- 238000000137 annealing Methods 0.000 claims description 8
- 238000005491 wire drawing Methods 0.000 claims description 5
- 239000002344 surface layer Substances 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Metal Extraction Processes (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はタングステン線の製造方法に関するものであ
る。TECHNICAL FIELD The present invention relates to a method for manufacturing a tungsten wire.
従来の技術 一般に、タングステン線の製造方法において、ダイス
を用いて線引加工を行う場合、タングステン線素材には
加工歪が蓄積される。仕上げ寸法が細くなると、ダイス
による加工回数が多くなり、この加工歪の蓄積のため
に、線引が不可能になる。このため、線引加工の中間に
アニール処理を行い、再びダイスにて線引する。この中
間アニール工程において、タングステン線表面に汚染物
質による脆化層の形成や残存がある場合には、線径20〜
75μの極細線の線引中に断線が発生しやすい。2. Description of the Related Art Generally, in a method of manufacturing a tungsten wire, when wire drawing is performed using a die, a work strain is accumulated in a tungsten wire material. If the finishing dimension becomes thin, the number of times of working by the die increases, and the accumulation of this working strain makes it impossible to draw. For this reason, annealing is performed in the middle of the drawing process, and drawing is performed again with a die. In this intermediate annealing step, if the tungsten wire surface has a brittle layer formed or remains due to contaminants, the wire diameter of
Wire breakage is likely to occur during the drawing of 75μ ultrafine wire.
発明が解決しようとする問題点 このような極細タングステン線の製造方法において、
線引中に断線が発生すると、ダイスのセットをし直さな
ければならず、長時間無人で線引機を稼動させることが
できなく生産能率が悪い。併せてタングステン線の品質
の不安定な要因にもつながる。Problems to be Solved by the Invention In such a method for manufacturing an ultrafine tungsten wire,
If a wire break occurs during wire drawing, the dies must be set again, and the wire drawing machine cannot operate unattended for a long time, resulting in poor production efficiency. At the same time, it also leads to unstable factors in the quality of the tungsten wire.
本発明は線引中における断線を減少させ、また品質の
安定したタングステン線の製造方法を提供するものであ
る。The present invention provides a method for producing a tungsten wire which has a stable quality and reduces disconnection during drawing.
問題点を解決するための手段 本発明のタングステン線の製造方法は、タングステン
線の伸線過程において、中間アニール処理を行う前に前
記タングステン線表面層を３〜10重量％除去するもので
ある。Means for Solving the Problems In the method for manufacturing a tungsten wire of the present invention, in the drawing process of the tungsten wire, the tungsten wire surface layer is removed by 3 to 10% by weight before performing the intermediate annealing treatment.
作用 かかる構成により、タングステン線表面に付着してい
る汚染物質による脆化層を除去するものである。Action With this configuration, the embrittlement layer due to the contaminants adhering to the surface of the tungsten wire is removed.
実施例 以下、本発明の一実施例について図面を用いて説明す
る。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
図は本発明方法を実施するための装置の一例を示す図
である。図において、巻戻リール２にはタングステン線
１が巻かれている。タングステン線１を電解液の入った
電解研摩槽３に通して電解処理をすることにより、タン
グステン線１の表面層を除去する。次にタングステン線
１の表面に付着した電解液を水洗槽４で洗滌し乾燥炉５
で水分を除去する。タングステン線１はガイドプーリ６
で折り返し通電アニールボックス７を通して中間アニー
ル処理をする。アニール処理されたタングステン線１は
酸化炉８に通しその表面を酸化させて同表面に潤滑剤が
付着しやすいようにする。潤滑ポット９でタングステン
線１表面に潤滑剤を付着する。乾燥炉10でその潤滑剤を
乾燥させ、さらに潤滑ポット11で潤滑剤を付着する。潤
滑剤の付着されたタングステン線１は加熱炉12を通し、
次のステップサイズのダイス13で線引する。線引された
タングステン線１は巻取リール14に巻取られる。以降通
常のとおりの線引加工方法によりタングステン線１が所
望の線径となるまで線引する。なお図中、15は台を示
す。The figure shows an example of an apparatus for carrying out the method of the present invention. In the figure, a tungsten wire 1 is wound around a rewind reel 2. The surface layer of the tungsten wire 1 is removed by passing the tungsten wire 1 through an electrolytic polishing tank 3 containing an electrolytic solution for electrolytic treatment. Next, the electrolytic solution adhering to the surface of the tungsten wire 1 is washed in a water washing tank 4 and dried in a drying furnace 5.
To remove water. Tungsten wire 1 is a guide pulley 6
Then, an intermediate annealing process is performed through the return current annealing box 7. The annealed tungsten wire 1 is passed through an oxidation furnace 8 to oxidize the surface thereof so that the lubricant easily adheres to the surface. Lubricant is attached to the surface of the tungsten wire 1 by the lubrication pot 9. The lubricant is dried in the drying furnace 10, and the lubricant is further attached in the lubrication pot 11. The tungsten wire 1 to which the lubricant is attached is passed through the heating furnace 12,
Draw with the next step size die 13. The drawn tungsten wire 1 is wound on a take-up reel 14. Thereafter, the tungsten wire 1 is drawn by a usual drawing method until it has a desired wire diameter. In the figure, 15 indicates a stand.
発明者は上記方法により線径180μのタングステン線
１を各々完成線径が75μ,50μ,30μ,20μとなるよう線
引を行った。これらの線引中に発生したタングステン線
１の断線回数を調べたところ、下表に示すとおりの結果
が得られた。The inventor has drawn the tungsten wire 1 having a wire diameter of 180 μ by the above method so that the finished wire diameters are 75 μ, 50 μ, 30 μ and 20 μ, respectively. When the number of breakages of the tungsten wire 1 generated during the drawing was examined, the results shown in the table below were obtained.
上表から明らかなように、本発明の方法によれば、従
来の方法に比べて、極細タングステン線の線引断線の発
生を著しく減少できることがわかる。 As is apparent from the above table, the method of the present invention can significantly reduce the occurrence of wire breakage of the ultrafine tungsten wire, as compared with the conventional method.
なお、上記実験ではタングステン線として線径が180
μのものを線引する場合について説明したが、他の線径
寸法のものを線引した場合についても同様の結果が得ら
れた。In the above experiment, the tungsten wire has a diameter of 180
Although the description has been made on the case of drawing the one having μ, similar results were obtained also when the drawing of other wire diameter dimensions was carried out.
発明の効果 以上説明したように、本発明の方法によれば、タング
ステン線の伸線過程において、中間アニール処理を行う
前にタングステン線表面層を３〜10重量％除去すること
により、従来に比して線引断線を著しく減少させること
ができる。したがって、タングステン線の伸線過程にお
いて、線引機を長時間無人で稼動させることができ、生
産能率を大幅に向上させることができる。その結果、タ
ングステン線のコストを低減させることができるととも
に、高品質のタングステン線を得ることができる。As described above, according to the method of the present invention, in the drawing process of the tungsten wire, the tungsten wire surface layer is removed by 3 to 10% by weight before performing the intermediate annealing treatment. Therefore, the wire breakage can be significantly reduced. Therefore, in the drawing process of the tungsten wire, the wire drawing machine can be operated unattended for a long time, and the production efficiency can be significantly improved. As a result, the cost of the tungsten wire can be reduced and a high quality tungsten wire can be obtained.
図は本発明の方法を実施するための装置の一例を示す正
面図である。 １……タングステン線、３……電解研摩槽、７……通電
アニールボックス、13……ダイス。The figure is a front view showing an example of an apparatus for carrying out the method of the present invention. 1 ... Tungsten wire, 3 ... Electrolytic polishing tank, 7 ... Electrical annealing box, 13 ... Dice.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 辻川 正弘 門真市大字門真1006番地 松下電子工業 株式会社内 (72)発明者 五十嵐 昌男 門真市大字門真1006番地 松下電子工業 株式会社内 (56)参考文献 特開 昭62−37358（ＪＰ，Ａ) 特開 昭60−197858（ＪＰ，Ａ) 特開 昭53−80312（ＪＰ，Ａ) 特開 昭61−74723（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahiro Tsujikawa 1006 Kadoma, Kadoma City, Matsushita Electronics Co., Ltd. (72) Inventor Masao Igarashi 1006 Kadoma, Kadoma City, Matsushita Electronics Co., Ltd. (56) References JP 62-37358 (JP, A) JP 60-197858 (JP, A) JP 53-80312 (JP, A) JP 61-74723 (JP, A)
Claims (1)
アニール処理を行う前に前記タングステン線表面層を３
〜10重量％除去することを特徴とするタングステン線の
製造方法。1. In the process of wire drawing of a tungsten wire, the surface layer of the tungsten wire is coated with 3% before intermediate annealing treatment.
A method for manufacturing a tungsten wire, which comprises removing about 10% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61238371A JP2537813B2 (en) | 1986-10-07 | 1986-10-07 | Method of manufacturing tungsten wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61238371A JP2537813B2 (en) | 1986-10-07 | 1986-10-07 | Method of manufacturing tungsten wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6393847A JPS6393847A (en) | 1988-04-25 |
| JP2537813B2 true JP2537813B2 (en) | 1996-09-25 |
Family
ID=17029192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61238371A Expired - Lifetime JP2537813B2 (en) | 1986-10-07 | 1986-10-07 | Method of manufacturing tungsten wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2537813B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7482411B2 (en) * | 2019-12-13 | 2024-05-14 | パナソニックＩｐマネジメント株式会社 | Metal Wire |
| CN117327895A (en) * | 2023-10-13 | 2024-01-02 | 诺克威新材料(江苏)有限公司 | An annealing machine for softening metal wires and a method of using the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6237358A (en) * | 1985-08-08 | 1987-02-18 | Toshiba Corp | Annealing method for metallic wire with high melting point |
-
1986
- 1986-10-07 JP JP61238371A patent/JP2537813B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6393847A (en) | 1988-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |