JPH0824954B2 - Wire drawing device - Google Patents
Wire drawing deviceInfo
- Publication number
- JPH0824954B2 JPH0824954B2 JP62197533A JP19753387A JPH0824954B2 JP H0824954 B2 JPH0824954 B2 JP H0824954B2 JP 62197533 A JP62197533 A JP 62197533A JP 19753387 A JP19753387 A JP 19753387A JP H0824954 B2 JPH0824954 B2 JP H0824954B2
- Authority
- JP
- Japan
- Prior art keywords
- die
- wire
- frequency induction
- induction heating
- pipe
- 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
Landscapes
- Metal Extraction Processes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は線材をダイスを通して引抜く線材引抜装置に
関するものである。TECHNICAL FIELD The present invention relates to a wire drawing device for drawing a wire through a die.
従来の線材引抜装置は一般に冷間引抜方式によって行
われているが、引抜きにより加工硬化し、靱性が失われ
るから断面減少率を大きくすることが出来ないという問
題がある。The conventional wire drawing apparatus is generally operated by a cold drawing method, but there is a problem that the cross-section reduction rate cannot be increased because work hardening occurs due to drawing and toughness is lost.
例えば、鋼線の場合でダイス１枚当りの断面減少率が25
％を超えると内部欠陥が発生することが多くなるため、
通常断面減少率を25％以下として加工を行っているた
め、ダイスの通過回数を多くしなければならないという
問題があった。For example, in the case of steel wire, the area reduction rate per die is 25
If it exceeds%, internal defects often occur, so
Since the cross-section reduction rate is usually set to 25% or less, there is a problem that the number of times the die passes must be increased.
本発明は上記従来の欠点を解消させるものであり、ダ
イスの通過回数を減らすことにより伸線の作業性を向上
させると共に、機械スペースを大巾に縮小する線材引抜
装置を提供するものである。すなわち本発明の線材引抜
装置は、ダイスボックスと、上記ダイスボックス内に設
けたダイスと、上記ダイスの入口側に高周波誘導加熱装
置を設けた線材引抜装置において、上記ダイスがセラミ
ックス製であり、上記高周波誘導加熱装置が非磁性体
で、かつ非鉄材よりなるパイプと、上記パイプの周囲に
高周波誘導加熱コイルを設けて形成され、無酸化雰囲気
ガスを有してなることを特徴とする。The present invention solves the above-mentioned conventional drawbacks, and provides a wire drawing device that reduces the number of times a die passes to improve the workability of wire drawing and greatly reduces the machine space. That is, the wire rod drawing apparatus of the present invention is a die box, a die provided in the die box, and a wire rod drawing apparatus provided with a high-frequency induction heating device on the inlet side of the die, wherein the die is made of ceramics, and The high frequency induction heating device is characterized in that it is formed by providing a pipe made of a non-magnetic material and a non-ferrous material and a high frequency induction heating coil around the pipe, and containing a non-oxidizing atmosphere gas.
本発明において、ダイスがセラミックス製であるた
め、高温加熱時の焼付きを防止できる。また、非磁性体
で、かつ非鉄材よりなるパイプを用いることにより、線
材の加熱効率を向上できる。さらに、無酸化雰囲気ガス
を有することにより、高温時の線材の酸化を防止でき
る。In the present invention, since the die is made of ceramics, it is possible to prevent seizure during high temperature heating. Moreover, the heating efficiency of the wire can be improved by using a pipe made of a non-magnetic material and a non-ferrous material. Furthermore, by having the non-oxidizing atmosphere gas, it is possible to prevent the wire rod from being oxidized at high temperature.
以下本発明の線材引抜装置の１実施例を図面に基いて
説明する。An embodiment of the wire drawing apparatus of the present invention will be described below with reference to the drawings.
ダイスボックス（１）は引抜きに耐える強度を有する
非磁性体で、かつ非金属材から形成されており、ダイス
ボックス内にはセラミックス製のダイス（２）を具備す
る耐熱磁性金属製のダイスマウント（３）が設けられて
いる。The die box (1) is made of a non-magnetic material having a strength enough to withstand drawing and is made of a non-metallic material, and the die box (2) made of heat-resistant magnetic metal has a die (2) made of ceramics. 3) is provided.
ダイス（２）の入口側には非磁性体で、かつ非鉄材よ
りなるパイプ（４）と、上記パイプの周囲に高周波誘導
加熱コイル（５）よりなる高周波誘導加熱装置が設けら
れており、上記パイプ（４）には保護ガス導入口（６）
を設けて本発明の線材引抜装置を構成する。On the inlet side of the die (2), a pipe (4) made of a non-magnetic material and made of non-ferrous material, and a high frequency induction heating device comprising a high frequency induction heating coil (5) are provided around the pipe. The pipe (4) has a protective gas inlet (6)
Is provided to configure the wire rod drawing device of the present invention.
なお、ダイスマウントの外周にも高周波誘導コイル
（７）を設けると、ダイスマウントを高温に加熱保持す
ることができる。If the high frequency induction coil (7) is also provided on the outer periphery of the die mount, the die mount can be heated and maintained at a high temperature.
本発明の線材引抜装置は上記の構成よりなっており、
線材（８）をダイス（２）により矢印の方向に引抜くに
際して、まず、保護ガス導入口（６）より高温時の線材
の酸化を防止するための保護ガスを流入する。The wire drawing device of the present invention has the above-mentioned configuration,
When the wire rod (8) is pulled out by the die (2) in the direction of the arrow, first, a protective gas for preventing the oxidation of the wire rod at a high temperature is introduced through the protective gas inlet (6).
次に、パイプ（４）の外周に設けた高周波誘導加熱コ
イル（５）を通電して、線材がパイプ（４）中を通過す
る間に所定の温度になるよう加熱される。そして、高周
波誘導加熱コイル（７）により、耐熱磁性金属よりなる
ダイスマウント（３）が高温に保持され、セラミックス
ダイス（２）により、線材（８）は約700℃に加熱され
た状態で熱間引抜加工がなされ、所定の寸法に形成され
る。Next, the high frequency induction heating coil (5) provided on the outer periphery of the pipe (4) is energized to heat the wire rod to a predetermined temperature while passing through the pipe (4). The high frequency induction heating coil (7) keeps the die mount (3) made of heat-resistant magnetic metal at a high temperature, and the ceramic die (2) heats the wire rod (8) to about 700 ° C. It is drawn and formed into a predetermined size.
従来の冷間引抜加工の場合は、第２図に示されるよう
に、C:0.8％の硬鋼線材を用いて引抜くとき、ダイス１
枚の最大の断面減少率は25％であることがわかる。In the case of conventional cold drawing, as shown in Fig. 2, when drawing using C: 0.8% hard steel wire, die 1
It can be seen that the maximum area reduction rate of the sheet is 25%.
これに対し、本発明の引抜方法によると、第３図に示
すようにダイス１枚の断面減少率は50％以上とすること
ができることがわかる。On the other hand, according to the drawing method of the present invention, as shown in FIG. 3, it can be seen that the cross-sectional reduction rate of one die can be 50% or more.
なお、断面減少率は次の式で計算される。 The cross-section reduction rate is calculated by the following formula.
ただし、DO：加工前の線径 DN：加工後の線径 〔発明の効果〕 本発明の線材引抜装置は上記の構成よりなり、高周波
誘導加熱により引抜加工されるため断面減少率を50％以
上とすることができ、ダイスの通過回数を大巾に減じ、
工程が短縮され、50％以上の設備スペースの縮小が可能
となった。 However, D O : wire diameter before processing D N : wire diameter after processing [Effect of the invention] The wire rod drawing apparatus of the present invention has the above-mentioned configuration, and the cross-section reduction rate is 50 because it is drawn by high-frequency induction heating. % Or more, greatly reducing the number of passing dies,
The process has been shortened and the equipment space can be reduced by 50% or more.
また、冷間引抜により引抜後の強度を特に必要とせ
ず、伸線後に熱処理をする線、例えば紡績部品用のトラ
ベラ用線、針布用線、軟質線、異形線等の線材の引抜に
おいて大巾な工程短縮および作業効率の向上を達するこ
とができる等の優れた効果を有する発明である。In addition, it does not require the strength after drawing by cold drawing, and it is very suitable for drawing wires that are heat-treated after drawing, such as traveler wires for spinning parts, needle cloth wires, soft wires, and deformed wires. It is an invention having excellent effects such that a wide range of process shortening and work efficiency improvement can be achieved.
第１図は本発明の線材引抜装置の１実施例を示す断面
図、第２図は従来の冷間引抜におけるダイス枚数と断面
減少率関係図、第３図は本発明の線材引抜装置によるダ
イス枚数と断面減少率関係図である。 （１）…ダイスボックス （２）…ダイス （３）…ダイスマウント （４）…パイプ （５）（７）…高周波誘導加熱コイル （６）…保護ガス導入口 （８）…線材FIG. 1 is a sectional view showing an embodiment of the wire rod drawing apparatus of the present invention, FIG. 2 is a relationship diagram between the number of dies and the cross-section reduction rate in the conventional cold drawing, and FIG. 3 is a die of the wire rod drawing apparatus of the present invention. It is a figure of the number of sheets and a cross-section reduction rate. (1) ... Dice box (2) ... Dice (3) ... Die mount (4) ... Pipe (5) (7) ... High frequency induction heating coil (6) ... Protective gas inlet (8) ... Wire rod
Claims (1)
に設けたダイスと、上記ダイスの入口側に高周波誘導加
熱装置を設けた線材引抜装置において、上記ダイスがセ
ラミックス製であり、上記高周波誘導加熱装置が非磁性
体で、かつ非鉄材よりなるパイプと、上記パイプの周囲
に高周波誘導加熱コイルを設けて形成され、無酸化雰囲
気ガスを有してなることを特徴とする線材引抜装置。1. A wire box drawing device comprising a die box, a die provided in the die box, and a high-frequency induction heating device on the inlet side of the die, wherein the die is made of ceramics, and the high-frequency induction heating device is provided. Is a non-magnetic material and is made of a non-ferrous material, and a high-frequency induction heating coil is provided around the pipe, and has a non-oxidizing atmosphere gas, and a wire drawing apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62197533A JPH0824954B2 (en) | 1987-08-07 | 1987-08-07 | Wire drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62197533A JPH0824954B2 (en) | 1987-08-07 | 1987-08-07 | Wire drawing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6440115A JPS6440115A (en) | 1989-02-10 |
| JPH0824954B2 true JPH0824954B2 (en) | 1996-03-13 |
Family
ID=16376048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62197533A Expired - Lifetime JPH0824954B2 (en) | 1987-08-07 | 1987-08-07 | Wire drawing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0824954B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160103198A (en) * | 2015-02-23 | 2016-09-01 | (주)유창산공 | Apparatus for manufacturing a steel tube with varying thicknesses |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567240B (en) * | 2012-07-18 | 2016-03-30 | 绍兴文理学院 | A kind of pipe drawing device of planet tube grimper |
| CN103567251B (en) * | 2012-07-18 | 2016-03-02 | 绍兴文理学院 | A kind of Novel planetary pipe mill |
| CN108015113A (en) * | 2018-01-23 | 2018-05-11 | 北京大学深圳研究院 | A kind of magnesium alloy precision tube temperature control drawing process and its temperature control drawing mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5156759A (en) * | 1974-11-15 | 1976-05-18 | Hitachi Metals Ltd | Onkanhikinukihoho oyobi sochi |
| JPS62161417A (en) * | 1986-01-13 | 1987-07-17 | Toshiba Corp | Die device for precision taper work |
-
1987
- 1987-08-07 JP JP62197533A patent/JPH0824954B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160103198A (en) * | 2015-02-23 | 2016-09-01 | (주)유창산공 | Apparatus for manufacturing a steel tube with varying thicknesses |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6440115A (en) | 1989-02-10 |
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