JPH0212648B2 - - Google Patents
Info
- Publication number
- JPH0212648B2 JPH0212648B2 JP57205993A JP20599382A JPH0212648B2 JP H0212648 B2 JPH0212648 B2 JP H0212648B2 JP 57205993 A JP57205993 A JP 57205993A JP 20599382 A JP20599382 A JP 20599382A JP H0212648 B2 JPH0212648 B2 JP H0212648B2
- Authority
- JP
- Japan
- Prior art keywords
- metal
- plastic
- filament
- tube body
- small diameter
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/09—Making tubes with welded or soldered seams of coated strip material ; Making multi-wall tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Description
【発明の詳細な説明】
本発明は、金属細径管本体の中にプラスチツク
被覆線条体を収容したプラスチツク被覆線条体入
り金属細径管の連続製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for continuously manufacturing a small-diameter metal tube containing a plastic-coated filament body, in which a plastic-coated filament body is housed in a small-diameter metal tube body.
プラスチツク被覆線条体入り金属細径管の連続
製造は、第１図に示すように走行中のプラスチツ
ク被覆線条体１に金属テープ２′を縦添え供給し
てプラスチツク被覆線条体１が内側になるように
順次フオーミングしつつこの金属テープ２′の合
せ目を溶接機３の溶接トーチ３Ａで順次溶接し、
金属細径管本体２を連続的に造管製造すると共に
その際にプラスチツク被覆線条体１を順次収容
し、プラスチツク被覆線条体入り金属細径管４を
連続的に製造していた。 Continuous production of small-diameter metal tubes containing plastic-coated filaments is carried out by supplying a metal tape 2' longitudinally to the plastic-coated filament 1 while the plastic-coated filament 1 is running, as shown in FIG. While sequentially forming the metal tape 2' so that
The small-diameter metal tube body 2 is continuously manufactured, and at the same time, the plastic-coated filament 1 is sequentially accommodated, and the small-diameter metal tube 4 containing the plastic-coated filament is continuously manufactured.
このようなプラスチツク被覆線条体入り金属細
径管４の連続製造方法では、金属細径管本体２の
直径が例えば６mmφ程度に細くなると、溶接時の
熱で内部のプラスチツク被覆線条体１が損傷され
る欠点がある。 In such a continuous manufacturing method of the metal small-diameter tube 4 containing a plastic-coated filament, when the diameter of the metal small-diameter tube body 2 is reduced to, for example, about 6 mmφ, the plastic-coated filament 1 inside is damaged by the heat during welding. It has the disadvantage of being damaged.
これを避けるためには、溶接直後にプラスチツ
ク被覆線条体入り金属細径管４を冷却槽に通して
冷却することが検討されているが、冷却槽では大
きな設置スペースを必要とする欠点がある。ま
た、冷却槽では冷却液が溶接側に逆流しないよう
にするために、冷却側を溶接側より下にするよう
に曲げる必要が生じ、このようにするとプラスチ
ツク被覆線条体入り金属細径管４が損傷されるお
それがあり好ましくない。 In order to avoid this, it has been considered to cool the small-diameter metal tube 4 containing a plastic-coated filament through a cooling tank immediately after welding, but a cooling tank has the disadvantage that it requires a large installation space. . In addition, in order to prevent the cooling liquid from flowing back to the welding side in the cooling tank, it is necessary to bend the cooling side so that it is below the welding side. This is undesirable as there is a risk of damage to the
このような欠点を伴わない冷却の仕方として溶
接直後の金属細径管本体２に上から冷却液をかけ
て冷却する方法が考えられる。 A conceivable cooling method that does not involve such drawbacks is to cool the small diameter metal tube body 2 by pouring a cooling liquid over it immediately after welding.
しかしながら、この場合には冷却液量が少なく
冷却が足りないと、金属細径管本体２の内部のプ
ラスチツク被覆線条体１が熱的に損傷されるおそ
れがあり、冷却液量が多いと冷却液が溶接機３の
側に逆流して溶接を不安定にするおそれがある。 However, in this case, if the amount of coolant is small and the cooling is insufficient, there is a risk that the plastic coated filament 1 inside the thin metal tube body 2 will be thermally damaged; There is a risk that the liquid will flow back toward the welding machine 3 and make welding unstable.
特に、電気溶接法では、アークによつて電極の
消耗があり、長時間連続を行うと、アークが不安
定になるので、連続造管を行うためには途中で溶
接機を停止する必要がある。従つて、金属細径管
本体２の速度が変るので、速度変動による溶接不
良の発生及びプラスチツク被覆線条体１の熱的損
傷について十分に配慮する必要がある。 In particular, with electric welding, the electrodes are consumed by the arc, and if continued continuously for a long time, the arc becomes unstable, so it is necessary to stop the welding machine midway through continuous pipe production. . Therefore, since the speed of the metal small-diameter tube body 2 changes, it is necessary to give sufficient consideration to the occurrence of welding defects due to speed fluctuations and thermal damage to the plastic-covered filament 1.
本発明の目的は、金属細径管本体に速度の変化
が生じても内部のプラスチツク被覆線条体に熱的
損傷を発生させないプラスチツク被覆線条体入り
金属細径管の連続製造方法を提供するにある。 An object of the present invention is to provide a continuous manufacturing method for a small-diameter metal tube containing a plastic-coated strand that does not cause thermal damage to the inner plastic-coated strand even if a speed change occurs in the small-diameter metal tube body. It is in.
本発明は、走行中のプラスチツク被覆線条体に
金属テープを縦添え供給して前記プラスチツク被
覆線条体が内側になるように前記金属テープを順
次フオーミングしつつ前記金属テープの合せ目を
溶接して金属細径管本体とし、得られたプラスチ
ツク被覆線条体入り金属細径管に冷却液をかけて
前記金属細径管本体を冷却してプラスチツク被覆
線条体入り金属細径管を連続製造する際に、前記
金属細径管本体の移動速度を検出し、該移動速度
に応じて溶接電流の制御を行うプラスチツク被覆
線条体入り金属細径管の連続製造方法において、
前記金属細径管本体の移動速度に応じて該金属細
径管本体にかける冷却液の液量の制御を行うこと
を特徴とするものである。 The present invention involves supplying a metal tape vertically to a traveling plastic-coated filament, forming the metal tape sequentially so that the plastic-covered filament is on the inside, and welding the joints of the metal tape. A cooling liquid is applied to the obtained metal small diameter tube containing the plastic-coated filament to cool the metal small-diameter tube body, and a metal small-diameter tube containing the plastic-coated filament is continuously manufactured. In a method for continuously manufacturing a small diameter metal tube containing a plastic coated filament, the moving speed of the small diameter metal tube body is detected and the welding current is controlled according to the moving speed.
The present invention is characterized in that the amount of coolant applied to the small diameter metal tube body is controlled in accordance with the moving speed of the small diameter metal tube body.
以下本発明の具体例を図面を参照して詳細に説
明する。本実施例においては、第２図に示すよう
にプラスチツク被覆線条体１を内蔵して円形に成
形された金属テープ２′を、その合せ目が接触す
るように１対のスクイズロール５で圧縮しつつそ
の合せ目を溶接機３における溶接トーチ３Ａの先
端の溶接電極３Ｂからアークを飛ばして溶接して
金属細径管本体２とし、第３図に示すようなプラ
スチツク被覆線条体入り金属細径管４を得る。な
お、２Ａは金属細径管本体２の溶接部である。得
られたプラスチツク被覆線条体入り金属細径管４
の金属細径管本体２には、直ちに給液配管６の冷
却ノズル６Ａから冷却水の如き冷却液７をかけて
冷却を行い、内部のプラスチツク被覆線条体本体
１を熱的損傷が生じないように保護する。プラス
チツク被覆線条体１としては、例えば芯線導体の
外周にポリエチレン等のプラスチツク層を被覆し
た絶縁電線、或は光フアイバの外周にナイロン等
のプラスチツク層を被覆した光フアイバ心線等が
ある。冷却液７をかける際、冷却液７や蒸気が溶
接トーチ３Ａ側に飛ぶおそれがあるので、本実施
例では溶接トーチ３Ａ側と給液配管６の冷却ノズ
ル６Ａ側とは仕切板８で仕切り、その孔８Ａをプ
ラスチツク被覆線条体入り金属細径管４が通過す
るようにしている。 Hereinafter, specific examples of the present invention will be described in detail with reference to the drawings. In this embodiment, as shown in FIG. 2, a circular metal tape 2' containing a plastic-covered filament 1 is compressed with a pair of squeeze rolls 5 so that the seams are in contact with each other. At the same time, the joint is welded with an arc from the welding electrode 3B at the tip of the welding torch 3A of the welding machine 3 to form the metal small diameter tube body 2, and a metal thin tube containing a plastic coated filament as shown in FIG. A diameter tube 4 is obtained. Note that 2A is a welded portion of the metal small diameter tube main body 2. Obtained plastic-coated filament-containing metal thin tube 4
Cooling liquid 7 such as cooling water is immediately applied to the small diameter metal tube body 2 from the cooling nozzle 6A of the liquid supply pipe 6 to cool it, so that no thermal damage occurs to the plastic-covered wire body 1 inside. Protect as such. Examples of the plastic-coated wire body 1 include an insulated wire in which the outer periphery of a core conductor is coated with a plastic layer such as polyethylene, or an optical fiber core wire in which the outer periphery of an optical fiber is coated with a plastic layer such as nylon. When applying the coolant 7, there is a risk that the coolant 7 and steam may fly to the welding torch 3A side, so in this embodiment, the welding torch 3A side and the cooling nozzle 6A side of the liquid supply pipe 6 are separated by a partition plate 8. A thin metal tube 4 containing a plastic-coated filament is made to pass through the hole 8A.
このとき、金属細径管本体２の速度を速度検出
器９で検出し、得られた速度信号を比率設定器１
０に与える。比率設定器１０では、第４図に示す
ように与えられる速度信号ｖに応じて溶接機３を
制御して溶接電流Ｉを制御し、且つ冷却液７を送
るポンプ１１のモータ１２を制御して冷却液７の
流量Ｑを制御する。即ち、速度ｖが小さければ液
量Ｑを小さくし、速度ｖの増大に応じて液量Ｑを
多くする。また、速度ｖが小さければ溶接電流Ｉ
を小さくし、速度ｖの増大に応じて溶接電流を一
定の比率で増大させる。 At this time, the speed of the metal small diameter tube body 2 is detected by the speed detector 9, and the obtained speed signal is sent to the ratio setting device 1.
Give to 0. The ratio setting device 10 controls the welding machine 3 to control the welding current I according to the speed signal v given as shown in FIG. The flow rate Q of the coolant 7 is controlled. That is, if the speed v is small, the liquid amount Q is decreased, and as the speed v increases, the liquid amount Q is increased. Also, if the speed v is small, the welding current I
is made smaller, and the welding current is increased at a constant rate as the speed v increases.
第５図は成形機、溶接機、ポンプの起動−停止
の一工程の例を示したものである。図において、
T0は成形機及びポンプの起動時、T1は溶接機の
起動時、T2は定常運転開始時、T3は定常運転終
了時、T4は溶接機の停止時、T5は成形機及びポ
ンプの停止時である。即ち、本実施例では成形機
の起動停止とポンプの起動停止を同時に行ない、
溶接機は時間T1で起動し、時間T4で停止する。
また、金属細径管本体の速度ｖ、冷却液量Ｑ、溶
接電流Ｉは共に時間T2で定常運転に入り、時間
T3で定常運転を停止し、停止動作を開始する。 FIG. 5 shows an example of one process of starting and stopping a molding machine, a welding machine, and a pump. In the figure,
T 0 is when the forming machine and pump are started, T 1 is when the welding machine is started, T 2 is when steady operation starts, T 3 is when steady operation ends, T 4 is when the welding machine is stopped, T 5 is when the forming machine and when the pump is stopped. That is, in this embodiment, the molding machine is started and stopped and the pump is started and stopped at the same time.
The welding machine starts at time T 1 and stops at time T 4 .
In addition, the speed v of the metal small diameter tube body, the amount of coolant Q, and the welding current I all enter steady operation at time T 2 , and the time
At T 3 , steady operation is stopped and stopping operation is started.
なお、速度信号は図示のような位置に設けた速
度検出器９から得る方法のほかに、成形機のモー
タの回転数を移用して得る方法等がある。また、
冷却液の流量Ｑの制御は、ポンプ以外に、バルブ
の開度の制御によつて行うこともできる。更に、
冷却ノズルを金属細径管本体上にその長手方向に
沿つて多数配設して、これら冷却ノズルを線速に
応じて開閉することもできる。 In addition to the method of obtaining the speed signal from the speed detector 9 provided at the position shown in the figure, there is a method of obtaining the speed signal by transferring the rotational speed of the motor of the molding machine. Also,
The flow rate Q of the coolant can be controlled not only by a pump but also by controlling the opening degree of a valve. Furthermore,
It is also possible to arrange a large number of cooling nozzles on the metal narrow diameter tube body along its longitudinal direction, and to open and close these cooling nozzles according to the linear velocity.
実験例
下記条件で外径5.0mmφ、肉厚0.65mmのアルミ
細径管本体内にプラスチツク被覆線条体を挿入し
たプラスチツク被覆線条体入りアルミ細径管を約
5000ｍ連続製造した。この際、600〜800ｍ位の製
造長毎に溶接電極の交換を行ない、その都度本発
明の方法を適用して溶接電流の制御と冷却液量の
制御とを行なつた。Experimental example: Under the following conditions, a small diameter aluminum tube with a plastic covered wire body was inserted into a small diameter aluminum tube body with an outer diameter of 5.0 mmφ and a wall thickness of 0.65 mm.
Manufactured continuously for 5000m. At this time, the welding electrode was replaced every time the manufacturing length was about 600 to 800 m, and the method of the present invention was applied each time to control the welding current and the amount of coolant.
溶接トーチと冷却箇所管の距離：３〜５cm
プラスチツク被覆線条体の外径：２〜３mmφ
線速：最大４〜６ｍ／分
T2：２秒
T4−T3：２秒
溶接機：電気アーク溶接
溶接電流：最大40〜80A
冷却水量：最大４／分
ポンプ：ギヤーポンプ
他の条件：起動はアルミ細径管本体を一且数cm後
退させて溶接部が重なり合うようにして行つ
た。Distance between welding torch and cooling point tube: 3 to 5 cm Outer diameter of plastic coated wire: 2 to 3 mmφ Line speed: 4 to 6 m/min maximum T 2 : 2 seconds T 4 -T 3 : 2 seconds Welding machine: Electric Arc welding Welding current: Maximum 40 to 80 A Cooling water flow: Maximum 4/min Pump: Gear pump Other conditions: Start-up was performed by retracting the small diameter aluminum tube body by a few centimeters so that the welded parts overlapped.
以上説明したように本発明に係るプラスチツク
被覆線条体入り金属細径管の連続製造方法におい
ては、金属細径管本体の速度を検出してその速度
信号に応じて冷却液量の制御を行うので、ライン
速度が変化しても内部のプラスチツク被覆線条体
が熱的に損傷されるのを防止することができる。
また、本発明では、このような制御を溶接電流の
制御と共に行つているので、両制御の併用によ
り、品質のよいプラスチツク被覆線条体入り金属
細径管の連続製造を安定して溶易に行うことがで
きる。 As explained above, in the method for continuously manufacturing a small diameter metal tube containing a plastic-coated filament according to the present invention, the speed of the small diameter metal tube body is detected and the amount of cooling liquid is controlled in accordance with the speed signal. Therefore, even if the line speed changes, the internal plastic-coated strands can be prevented from being thermally damaged.
In addition, in the present invention, such control is performed together with the control of the welding current, so by using both controls together, it is possible to stably and easily melt the continuous production of high-quality plastic-coated thin metal tubes with wire bodies. It can be carried out.
第１図はプラスチツク被覆線条体入り金属細径
管の製造工程の側面図、第２図は本発明の製造工
程の要部の説明図、第３図はプラスチツク被覆線
条体入り金属細径管の一例を示す横断面図、第４
図は本発明の方法における線速度ｖと溶接電流Ｉ
と冷却液流量Ｑとの関係の一例を示す線図、第５
図は本発明の方法における時間に対する線速度ｖ
と溶接電流Ｉと冷却液流量Ｑとの関係の一例を示
す線図である。
１……プラスチツク被覆線条体、２′……金属
テープ、２……金属細径管本体、２Ａ……溶接
部、３……溶接機、３Ａ……溶接トーチ、４……
プラスチツク被覆線条体入り金属細径管、５……
スクイズロール、６……給液配管、６Ａ……冷却
ノズル、７……冷却液、８……仕切板、９……速
度検出器、１０……比率設定器、１１……ポン
プ、１２……モータ。
Fig. 1 is a side view of the manufacturing process of a small diameter metal tube containing a plastic-coated filament, Fig. 2 is an explanatory diagram of the main part of the manufacturing process of the present invention, and Fig. 3 is a side view of the production process of a small-diameter metal tube containing a plastic-coated filament. Cross-sectional view showing an example of a pipe, No. 4
The figure shows linear velocity v and welding current I in the method of the present invention.
Diagram 5 showing an example of the relationship between Q and the coolant flow rate Q.
The figure shows linear velocity v versus time in the method of the present invention.
2 is a diagram showing an example of the relationship between welding current I and coolant flow rate Q. FIG. DESCRIPTION OF SYMBOLS 1...Plastic coated filamentary body, 2'...Metal tape, 2...Metal small diameter tube body, 2A...Welding part, 3...Welding machine, 3A...Welding torch, 4...
Metal thin tube with plastic coated filament, 5...
Squeeze roll, 6...Liquid supply piping, 6A...Cooling nozzle, 7...Cooling liquid, 8...Partition plate, 9...Speed detector, 10...Ratio setter, 11...Pump, 12... motor.
Claims (1)
プを縦添え供給し前記プラスチツク被覆線条体が
内側になるように前記金属テープを順次フオーミ
ングしつつ前記金属テープの合せ目を溶接して金
属細径管本体とし、得られたプラスチツク被覆線
条体入り金属細径管に冷却液をかけて前記金属細
径管本体を冷却してプラスチツク被覆線条体入り
金属細径管を連続製造する際に、前記金属細径管
本体の移動速度を検出し、該移動速度に応じて溶
接電流の制御を行うプラスチツク線条体入り金属
細径管の連続製造方法において、前記金属細径管
本体の移動速度に応じて該金属細径管本体にかけ
る冷却液の流量の制御を行うことを特徴とするプ
ラスチツク被覆線条体入り金属細径管の連続製造
方法。1. A metal tape is vertically supplied to a running plastic-coated filament, and the metal tape is sequentially formed so that the plastic-covered filament is on the inside, and the joints of the metal tape are welded to form a metal with a small diameter. When continuously producing a metal small diameter tube containing a plastic coated filament as a tube body by pouring a cooling liquid onto the obtained metal small diameter tube containing a plastic coated filament to cool the metal small diameter tube body, In the continuous manufacturing method of a metal thin tube containing a plastic filament, the moving speed of the metal thin tube body is detected and the welding current is controlled according to the moving speed. 1. A method for continuously manufacturing a thin metal tube containing a plastic-coated filament, characterized in that the flow rate of a cooling liquid applied to the thin metal tube body is controlled accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20599382A JPS5997717A (en) | 1982-11-26 | 1982-11-26 | Continuous production of small diameter metallic pipe containing plastic covered wire rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20599382A JPS5997717A (en) | 1982-11-26 | 1982-11-26 | Continuous production of small diameter metallic pipe containing plastic covered wire rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5997717A JPS5997717A (en) | 1984-06-05 |
| JPH0212648B2 true JPH0212648B2 (en) | 1990-03-23 |
Family
ID=16516126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20599382A Granted JPS5997717A (en) | 1982-11-26 | 1982-11-26 | Continuous production of small diameter metallic pipe containing plastic covered wire rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5997717A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2650081B1 (en) * | 1989-07-24 | 1991-10-04 | Foptica | METHOD AND APPARATUS FOR MANUFACTURING OPTICAL MODULES |
| DE19825423A1 (en) * | 1998-06-06 | 1999-12-09 | Alcatel Sa | Device for producing an optical cable |
| US9194512B2 (en) * | 2007-04-30 | 2015-11-24 | Mark Andreychuk | Coiled tubing with heat resistant conduit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53125956A (en) * | 1977-04-11 | 1978-11-02 | Nippon Electron Optics Lab | Steel pipe welding device |
| JPS53140265A (en) * | 1977-05-13 | 1978-12-07 | Kawasaki Steel Co | Seam welded steel pipe heat control process |
-
1982
- 1982-11-26 JP JP20599382A patent/JPS5997717A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5997717A (en) | 1984-06-05 |
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