JPS63242415A - Continuous drawing method for coiled metal tube - Google Patents
Continuous drawing method for coiled metal tubeInfo
- Publication number
- JPS63242415A JPS63242415A JP7604087A JP7604087A JPS63242415A JP S63242415 A JPS63242415 A JP S63242415A JP 7604087 A JP7604087 A JP 7604087A JP 7604087 A JP7604087 A JP 7604087A JP S63242415 A JPS63242415 A JP S63242415A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- drawn
- metal tube
- lubricant
- coiled metal
- 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.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims description 16
- 239000010687 lubricating oil Substances 0.000 claims abstract description 13
- 238000007667 floating Methods 0.000 claims abstract description 11
- 239000000314 lubricant Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005520 cutting process Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000601 superalloy Inorganic materials 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007739 conversion coating Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
- ZPEJZWGMHAKWNL-UHFFFAOYSA-L zinc;oxalate Chemical compound [Zn+2].[O-]C(=O)C([O-])=O ZPEJZWGMHAKWNL-UHFFFAOYSA-L 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、コイル状に巻かれた長尺の鋼管や超合金管な
どの金属管を連続的に引抜加工する方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for continuously drawing a long coiled metal tube such as a steel tube or a superalloy tube.
鋼管などの金属管を加工して細径管にしたり、異形管に
する方法として、管内にプラグを挿入しダ・イスを通し
°Ｃ冷間で引抜加工する方法いわゆる忌引法、およびプ
ラグを挿入せずダイスのみを使用して引き抜く空引法が
知られている。これら従来法はいずれも直管について行
われており、本出願人の出願した特開昭６０−１３７５
１０で知られているようなコイル状に巻かれた長尺の鋼
管や超合金管などの金属管を引抜加工することは行われ
ていない、従来の直管の忌引法は、直管を潤滑液槽内に
浸漬して管内に潤滑処理を施したのち引き抜くものであ
るが、これを長尺のコイル状金属管に適用した場合、金
属管の全長にわたって管内に潤滑処理を施すことがきわ
めて困難である。すなわち、長尺のコイル状金属管の管
内に潤滑剤が行きわたらず、エアーポケットが生じて管
内面に潤滑被膜の生成されない部分が生じる。このよう
な状態の金属管を忌引法により引抜加工すると、潤滑切
れによりプラグと管内面とが焼付き、管内に疵が発生ず
るばかりでなくプラグの寿命が著しく低下する。A method of processing metal pipes such as steel pipes into small diameter pipes or irregularly shaped pipes is to insert a plug into the pipe, pass it through a die and draw it cold at °C, and insert the plug. An empty drawing method is known in which the paper is pulled out using only the dice without using the die. All of these conventional methods have been applied to straight pipes, and they are
10, long coiled steel pipes and metal pipes such as superalloy pipes are not drawn.The conventional method of removing straight pipes is to lubricate the straight pipes. The tube is immersed in a liquid bath to lubricate the inside of the tube and then pulled out, but when this is applied to a long coiled metal tube, it is extremely difficult to lubricate the inside of the tube over the entire length of the tube. It is. That is, the lubricant does not spread throughout the long coiled metal tube, creating air pockets and creating portions on the inner surface of the tube where no lubricant film is formed. If a metal tube in such a state is drawn by the pull-out method, the plug and the inner surface of the tube will seize due to lack of lubrication, which will not only cause flaws within the tube but also significantly shorten the life of the plug.
本発明は、長尺のコイル状金属管を連続的に引抜加工す
るものであって、コイル状に巻かれた長尺の金属管を巻
き出しつつ忌引法により引抜加工し、管内表面にも疵の
ない引抜管を歩留まり良く、かつ晶能率の方法で得るこ
とを目的とする。The present invention involves continuous drawing of a long coiled metal tube, in which the long metal tube wound into a coil is unwound and drawn using a scraping method, and the inner surface of the tube is also subjected to the drawing process. The purpose of the present invention is to obtain a drawn tube free of crystallization with a high yield and crystal efficiency.
〔問題点を解決するための手段・作用〕本発明は、コイ
ル状金属管の一端から所要量の液状潤滑剤を管内に導入
し、該一端からフローティングプラグを該管内に挿入し
、該端部を先付は加工し、ついで該一端からダイスを通
して引き抜くことを特徴とする。[Means and effects for solving the problem] The present invention introduces a required amount of liquid lubricant into the coiled metal tube from one end, inserts a floating plug into the tube from the one end, and The tip is processed and then pulled out from the one end through a die.
本発明の対象とする金属管は、炭素鋼、低合金鋼、高合
金鋼２ステンレス鋼、超合金、チタンなどの何れでもよ
く、熱間押出管、マンネスマン各種方式によるシームレ
ス管、を縫管やＴＩＧ溶接管などの溶接管、鍛接管など
をストレンチレデューサ−により絞り圧延しコイル状に
巻き取った金属管や、′ＦＪ＆！Ｉｉ管やＴＩＧ溶接管
などの溶接管などを紋り圧延・仕ずにコイル状に巻き取
った金属管、冷間引抜加工したのちコイル状に巻き取っ
た金属管などの長尺管である。The metal tubes to which the present invention is directed may be made of carbon steel, low alloy steel, high alloy steel 2 stainless steel, superalloy, titanium, etc., including hot extruded tubes, seamless tubes manufactured by Mannesmann's various methods, sewn tubes, etc. Welded pipes such as TIG welded pipes, forge-welded pipes, etc. are squeeze-rolled using a trench reducer and wound into coils to produce metal pipes, 'FJ &! These are long tubes such as metal tubes made from welded tubes such as Ii tubes and TIG welded tubes that have been rolled and wound into coils, and metal tubes that have been cold drawn and then wound into coils.
以下に第１図に示す例により本発明法を説明する。コイ
ル状金属管Ｃを巻戻し機ｌにセントし、ピンチＩＪ−ラ
ー２によりコイル状金属管Ｃの一端を巻き出し、矯直機
３により矯正し、潤滑剤導入機４により液状潤滑剤を管
内に導入し、プラグ挿入機５により管内にフローティン
グプラグＰを挿入する。ついで、先付は機６により管端
部に先付は加工し、ｎ滑剤塗布機７により金属管の外面
に潤滑剤を塗布し、ダイス８に金属管の先端を通し、連
続引抜き機ＩＩにより連続的に芯引き加工する。The method of the present invention will be explained below using the example shown in FIG. The coiled metal tube C is placed in the unwinding machine 1, one end of the coiled metal tube C is unwound by the pinch IJ-ler 2, straightened by the straightener 3, and liquid lubricant is introduced into the tube by the lubricant introduction device 4. The floating plug P is inserted into the pipe by the plug insertion machine 5. Next, the tip is processed on the end of the tube by machine 6, lubricant is applied to the outer surface of the metal tube by lubricant applicator 7, the tip of the metal tube is passed through die 8, and the tip is processed by continuous drawing machine II. Continuous core drawing process.
芯引き加工された引抜管は管径測定機１２により必要に
応じて管径を測定し、長さ測定機１３により引抜管の長
さを測定し、採寸指示機１４で指示された所要長さに、
切断機１５により切断し、直管Ｓとなしクレートノ【司
６中に収納する。The diameter of the cored drawn pipe is measured as necessary using a pipe diameter measuring device 12, the length of the drawn pipe is measured using a length measuring device 13, and the required length is determined using a measuring device 14. To,
It is cut by a cutting machine 15 and stored in a straight pipe S and a hollow crate 6.
管内に導入する液状潤滑剤および管外面に塗布する潤滑
剤としては、生物油、鉱物油、樹脂などの単体あるいは
）ｎ合体など公知のものを使用することが出来る。液状
潤滑剤の管内への導入量は引抜加工すべき管の長さに必
要な量以上とする。なおコイル状金属管は内外面にあら
かじめ燐酸塩。As the liquid lubricant introduced into the pipe and the lubricant applied to the outer surface of the pipe, known lubricants such as biological oils, mineral oils, resins, etc. alone or combinations thereof can be used. The amount of liquid lubricant introduced into the pipe is greater than the amount required for the length of the pipe to be drawn. The coiled metal tube is pre-coated with phosphate on its inner and outer surfaces.
蓚酸塩などの化成被膜処理などが施されているものも対
象となる。管内に挿入するフローティングプラグＰは、
所要の管径、加工率、異形管の場合はその形状に応じて
、適宜の形、材質のものを選択する。先付は加工は、金
属管の管端部をプレス等により細径に加工する手段や、
細径の管を溶接等により接続する手段等を用いることが
出来る。Items that have been treated with chemical conversion coatings such as oxalate are also eligible. The floating plug P inserted into the pipe is
An appropriate shape and material are selected depending on the required pipe diameter, processing rate, and shape of the irregularly shaped pipe. The tip processing is a method of processing the end of a metal tube into a small diameter using a press, etc.
It is possible to use means such as connecting small diameter pipes by welding or the like.
本発明にお（Ｊるコイル状金属管の忌引加工中の状態を
第２図に示す。第２図（イ）は、コイル状金属管Ｃの管
内面の液状潤滑剤りの状態を示す図であり、第２図（ロ
）は、その芯用加工の状態を示す拡大図である。コイル
状金属管Ｃの一端から管内に導入された液状潤滑剤りは
、コイル状金属管Ｃの管内の人気とフローティングプラ
グＰとの間で充満しており、引抜加工の際には該プラグ
Ｐと管内表面との間に管内の全周にわたって一様に引き
込まれ、管内表面は良好な潤滑状態に保たれつつ芯引ｊ
ＪＩローされる。また、充満した液状潤滑剤１、による
冷却効果も加わり、フローティングプラグＰと管の焼付
きが防１１ニされ疵のない美麗で寸法精度のよい引抜管
が製造される。Fig. 2 shows the state of the coiled metal tube during disposal processing according to the present invention. Fig. 2 (a) is a diagram showing the state of liquid lubricant on the inner surface of the coiled metal tube C. FIG. 2(b) is an enlarged view showing the state of the core processing.The liquid lubricant introduced into the pipe from one end of the coiled metal pipe C flows inside the coiled metal pipe C. It is filled between the popularity of floating plug P and the floating plug P, and during the drawing process, it is uniformly drawn between the plug P and the inner surface of the pipe over the entire circumference of the pipe, and the inner surface of the pipe is kept in a good lubricated state. Core pulling while being maintained
JI low. In addition, the cooling effect of the filled liquid lubricant 1 is added to prevent seizure between the floating plug P and the pipe, and a beautiful drawn pipe with no flaws and good dimensional accuracy is manufactured.
連続引抜機１１による引抜きはつぎのようにして行われ
る。すなわち、連続引抜機ｌｌ内には２連のキャリッジ
９．ｌＯがあり、ダイス８を通った金属管は、連続引抜
機１１のＡ端にあるキャリッジ９のチャックに掴まれ、
連続引抜機１１の中央位置まで引き抜かれ、その際、キ
ャリッジ１０が１３端から中央位置まで金属管を掴むこ
とな（移動している。キャリフジ９が中央位置まできて
金属管をチャックから離す直前に、金属管は、中央位置
にきた；トヤリソジｌＯのチャックで掴まれＢ端まで引
き抜かれ、その際、キャリッジ９は金属管を掴むことな
くＡ端まで移動している。キャリッジｌ０−ＩＪ＜１３
端まできて金属管をチャックから離す直前に、金属管は
、Ａ端にきたキャリッジ９のチャックでＩＷまれ中央位
置まで引き抜かれる。この動作の繰り返しにより、金属
管には連続的にスムースな引抜力が与えられて引き抜か
れる。Drawing by the continuous drawing machine 11 is performed as follows. That is, there are two carriages 9 in the continuous drawing machine ll. The metal tube that has passed through the die 8 is grabbed by the chuck of the carriage 9 at the A end of the continuous drawing machine 11, and
The metal tube is pulled out to the center position of the continuous drawing machine 11, and at that time, the carriage 10 moves from the end of the metal tube 13 to the center position without gripping it.Just before the carriage 9 reaches the center position and releases the metal tube from the chuck. , the metal tube has come to the center position; it is grabbed by the chuck of the Toyari Soji lO and pulled out to the B end, and at this time, the carriage 9 is moving to the A end without gripping the metal tube. Carriage l0 - IJ < 13
Immediately before the metal tube reaches the end and is released from the chuck, the metal tube is IWed by the chuck of the carriage 9 that has come to the A end and is pulled out to the center position. By repeating this operation, a smooth pulling force is continuously applied to the metal tube and it is pulled out.
引抜加工された金属管は、所要の長さに所要の本数だけ
切断され、残りのコイル状金属管はコイルの状態で保管
しておき、必要な時に必要なだけ引抜加工することがで
きるので、歩留まりが良（、しかも作業性もすぐれてい
る。従来のような直管を引抜加工する場合は、引抜前の
直管の長さによって引抜後の管の長さが限定されるため
、どうしても所定の長さに足りない管が発生し歩留まり
が低下する。また、多本数の直管毎に先付は加工が必要
であったが、本発明によれば、１回の先付は加工を行え
ば、従来よりもはるかに多量の引抜管を製造することが
できる。The drawn metal tube is cut into the required number of pieces to the required length, and the remaining coiled metal tube is stored in a coiled state and can be drawn as needed when needed. Yield is good (and workability is also excellent. When drawing straight pipes as in the past, the length of the pipe after drawing is limited by the length of the straight pipe before drawing, so it is inevitable to Some pipes are not long enough, which lowers the yield.Furthermore, it was necessary to process the tip for each large number of straight tubes, but according to the present invention, the tip is only processed once. For example, it is possible to manufacture a much larger quantity of drawn tubes than previously possible.
なお、第１図の例は、引抜管を切断して複数本の直管を
製造するものであるが、このほか、引抜加］ニジたのち
引き続き巻き取って長尺コイルを製造することも出来る
。また、引抜加工したのち連続的に軟化焼鈍を行って切
断し複数本の直管を製造することも出来、切断せずに巻
き取って長尺コイルを製造することも出来る。The example shown in Figure 1 is for manufacturing multiple straight pipes by cutting a drawn pipe, but it is also possible to manufacture long coils by continuously winding the pipe after drawing. . Further, after drawing, it can be continuously subjected to softening annealing and cut to produce a plurality of straight tubes, or it can be wound without cutting to produce a long coil.
（１）Ｃ：０．０５χ、 Ｓｔ ： ０．０１χ、
Ｍｎ ： ０．３０χの炭素鋼からなり、外径ｉ １
３．８ｍ自、肉厚：２．３鳳１．長さ’ 約９５０１Ｔ
ｌのコイル状金属管であって、内外面が酸洗処理されか
つ燐酸亜鉛による造膜が施され°ζいるものを、第１図
のように巻戻し機にセットし、矯直し、管端から生物油
と鉱物油とエステルからなる液状の潤滑剤を管内に０．
６１導入し、超硬合金製のフローティングプラグを挿入
した後、プレスにより先付は加工し、管内に導入したの
と同じ潤滑剤を管外面に塗布し、ダイスをとおして外径
： １０．０ｍｍ、肉厚：２．Ｏｍｓに忌引加工し、定
尺長さ： ５．５ｍの直管を２８０本製造した。引抜
管の内外面は、いずれも疵の発生がなく、美麗な表面性
状を呈していた。(1) C: 0.05χ, St: 0.01χ,
Made of carbon steel with Mn: 0.30χ, outer diameter i 1
3.8m, wall thickness: 2.3 1. Length: approx. 9501T
1 coiled metal tube whose inner and outer surfaces are pickled and coated with zinc phosphate is set in an unwinding machine as shown in Figure 1, straightened, and the tube end A liquid lubricant consisting of biological oil, mineral oil, and ester is poured into the pipe.
After introducing 61 and inserting a floating plug made of cemented carbide, the tip was processed by a press, the same lubricant introduced into the tube was applied to the outer surface of the tube, and the tube was passed through a die to an outer diameter of 10.0 mm. , Thickness: 2. Oms was processed and 280 straight pipes with a standard length of 5.5 m were manufactured. The inner and outer surfaces of the drawn tube were free from any flaws and had beautiful surface textures.
（２）Ｃ：０．０２％、Ｃｒ：１９％、 Ｎｉ：９％の
ステンレス鋼からなり、外径： ２１．７瓢−１肉厚：
２．３ｍ、長さ：約５００ｍのコイル状金属管であって
、内外面が酸洗処理されかつ蓚酸亜鉛による造膜が施さ
れているものを、第１図のように巻戻し機にセットし、
矯直し、管端から樹脂系の液状潤滑剤を管内に０．５１
導入し、超硬合金製のフローティングプラグを挿入した
後、プレスにより先付は加工し、管内に導入したのと同
じ潤滑剤を管外面に塗布し、ダイスをとおして、外径：
１７，３ｍｍ、肉厚：２．０鶴に忌引加工し、定尺長さ
： ５．５ｍの直管を１３０本製造した。引抜管の内
外面は、いずれも疵の発生がなく美麗な表面性状を呈し
ていた。(2) Made of stainless steel with C: 0.02%, Cr: 19%, and Ni: 9%, outer diameter: 21.7 Gourd-1 wall thickness:
A coiled metal tube of 2.3 m in length and approximately 500 m in length, whose inner and outer surfaces are pickled and coated with zinc oxalate, is set in the unwinding machine as shown in Figure 1. death,
Straighten the tube and apply 0.51 resin liquid lubricant into the tube from the end.
After inserting a floating plug made of cemented carbide, the tip is processed using a press, the same lubricant that was introduced into the tube is applied to the outer surface of the tube, and the outer diameter is:
130 straight pipes of 17.3 mm, wall thickness: 2.0 mm and standard length: 5.5 m were manufactured. The inner and outer surfaces of the drawn tube were free from scratches and had a beautiful surface texture.
（３）工業用純チタンの外径； ２７．Ｏａｍ、
肉厚２、５ ｍｍ 、長さ：約５０ｍのコイル状金属管
であって、内外面が酸洗処理されかつ蓚酸塩系造膜剤に
よる造膜が施されているものを、第１図のように巻戻し
機にヒラ１し、矯直し、管端から液状潤滑剤を管内に導
入し、超硬合金製のフローティングプラグを挿入した後
、プレスにより先付は加工し、ダイスをとおして、外径
：２２曹ｍ、肉厚＝２．３鶴に忌引加工し、定尺長さ：
６ｍの直管を１１本製造した。(3) Outer diameter of industrially pure titanium; 27. Oam,
A coiled metal tube with a wall thickness of 2.5 mm and a length of about 50 m, whose inner and outer surfaces were pickled and coated with an oxalate-based film forming agent, was prepared as shown in Figure 1. After unwinding the tube, straightening it, introducing liquid lubricant into the tube from the end of the tube, and inserting a floating plug made of cemented carbide, the tip is processed using a press, and passed through a die. Outer diameter: 22 mm, wall thickness = 2.3 mm, standard length:
Eleven 6m straight pipes were manufactured.
引抜管の内外面は、いずれも疵の発生がな（美麗な表面
性状を−１していた。There were no scratches on the inner or outer surfaces of the drawn tube (the beautiful surface quality was rated -1).
本発明により、疵のない美麗な表面性状を有する細径あ
るいは異形の鋼管を、従来の直管を引き抜く方法に比し
て著しく能率よく、かつ歩留まりよく製造することがで
きる。According to the present invention, it is possible to manufacture small diameter or irregularly shaped steel pipes having beautiful surface properties without defects, with significantly higher efficiency and higher yield than the conventional method of drawing straight pipes.
また、本発明法によって引き抜かれたコイル状金属管は
、必要に応じて軟化焼鈍を行って、配管工事に直接使用
されたり、あるいは、さらに適宜引抜加工や曲げ加工に
供することが出来るため、撓めて経済的な効果をあげる
ことが出来る。In addition, the coiled metal tube drawn by the method of the present invention can be softened and annealed if necessary and used directly for piping work, or can be further subjected to drawing or bending as appropriate. It is possible to achieve an economic effect.
第１図は本発明法を実施するための装置例を示す図、第
２図は本発明の忌引加工中の状態を示す図である。FIG. 1 is a diagram showing an example of an apparatus for implementing the method of the present invention, and FIG. 2 is a diagram showing a state during bereavement processing according to the present invention.
Claims (1)
導入し、該一端からフローティングプラグを該管内に挿
入し、該端部を先付け加工し、ついで該一端からダイス
を通して引き抜くことを特徴とするコイル状金属管の連
続引抜方法。A required amount of liquid lubricant is introduced into the tube from one end of the coiled metal tube, a floating plug is inserted into the tube from the one end, the end is pre-applied, and then it is pulled out from the one end through a die. A continuous drawing method for coiled metal tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7604087A JPS63242415A (en) | 1987-03-31 | 1987-03-31 | Continuous drawing method for coiled metal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7604087A JPS63242415A (en) | 1987-03-31 | 1987-03-31 | Continuous drawing method for coiled metal tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63242415A true JPS63242415A (en) | 1988-10-07 |
Family
ID=13593691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7604087A Pending JPS63242415A (en) | 1987-03-31 | 1987-03-31 | Continuous drawing method for coiled metal tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63242415A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804423A (en) * | 2010-03-08 | 2010-08-18 | 彩虹集团电子股份有限公司 | Automatic coil wall-thickness reduction and drawing device and drawing method of small-diameter capillary tube |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5124562A (en) * | 1974-08-23 | 1976-02-27 | Shinichi Tateno | Chushabarikanno seizohohoo |
-
1987
- 1987-03-31 JP JP7604087A patent/JPS63242415A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5124562A (en) * | 1974-08-23 | 1976-02-27 | Shinichi Tateno | Chushabarikanno seizohohoo |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804423A (en) * | 2010-03-08 | 2010-08-18 | 彩虹集团电子股份有限公司 | Automatic coil wall-thickness reduction and drawing device and drawing method of small-diameter capillary tube |
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