JP2871945B2 - Manufacturing method of aluminum pipe by rotary wheel extrusion method - Google Patents
Manufacturing method of aluminum pipe by rotary wheel extrusion methodInfo
- Publication number
- JP2871945B2 JP2871945B2 JP8601892A JP8601892A JP2871945B2 JP 2871945 B2 JP2871945 B2 JP 2871945B2 JP 8601892 A JP8601892 A JP 8601892A JP 8601892 A JP8601892 A JP 8601892A JP 2871945 B2 JP2871945 B2 JP 2871945B2
- Authority
- JP
- Japan
- Prior art keywords
- cross
- wire
- sectional area
- collecting chamber
- passage
- 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 - Fee Related
Links
Landscapes
- Extrusion Of Metal (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高品質のアルミニウム
製管を製造し得る回転ホイール式押出法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary wheel extrusion method capable of producing a high quality aluminum tube.
【０００２】[0002]
【従来の技術】回転ホイール式押出法は、図２に示した
ように、外周溝１を設けた回転ホイール２の前記外周溝
１と固定シュー３とにより通路４を形成し、この通路４
にアルミニウム線材（以下Ａｌ線材と略記する。）５を
連続的に供給し、前記回転ホイール２の回転に伴い生じ
る前記通路４とＡｌ線材５との間の接触摩擦抵抗により
前記Ａｌ線材５に押出圧力を発生させて、前記Ａｌ線材
５を前記通路４の前方に配置した集合室のメタル流入口
７から集合室８内に圧入し、更に前記集合室８の先端部
に配置したマンドレル９とダイス10からなる複合ダイス
を通してアルミニウム製管（以下Ａｌ製管と略記す
る。）12を押出す方法である。この回転ホイール式押出
法は、例えば図３に示したような、断面が円形状のもの
（図３イ）、或いは内部に多数の仕切り13を設けた偏平
状の熱交換器用多穴管（図３ロ）等の比較的小断面で長
尺の管材の製造に適した押出方法である。2. Description of the Related Art In a rotary wheel extrusion method, as shown in FIG. 2, a passage 4 is formed by an outer peripheral groove 1 of a rotating wheel 2 provided with an outer peripheral groove 1 and a fixed shoe 3.
Aluminum wire (hereinafter abbreviated as Al wire) 5 is continuously supplied to the aluminum wire 5 by the contact frictional resistance between the passage 4 and the Al wire 5 generated by the rotation of the rotary wheel 2. By generating pressure, the Al wire 5 is pressed into the collecting chamber 8 from the metal inlet 7 of the collecting chamber disposed in front of the passage 4, and further, a die and a mandrel 9 disposed at the front end of the collecting chamber 8 are connected to the die. This is a method of extruding an aluminum pipe (hereinafter abbreviated as Al pipe) 12 through a composite die made of 10. This rotary wheel type extrusion method has a circular cross section as shown in FIG. 3 (FIG. 3A) or a flat multi-hole tube for a heat exchanger provided with a number of partitions 13 therein (FIG. 3). This is an extrusion method suitable for producing a long tube material having a relatively small cross section such as 3b).
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、この回
転ホイール式押出法により押出されるアルミニウム製管
は、肉厚が長手方向に不均一であり又空気の巻込み欠陥
を生じ、品質的に劣るものであった。However, the aluminum pipe extruded by the rotary wheel extrusion method is inferior in quality in that the wall thickness is not uniform in the longitudinal direction and air entrapment defects occur. Met.
【０００４】[0004]
【課題を解決する為の手段】本発明はかかる状況に鑑み
鋭意研究を行い、押出されるＡｌ製管に偏肉や空気の巻
込みが生じる原因は、複合ダイスに供給されるメタル量
が変動する為であり、この安定化には、メタルを滞留さ
せる集合室の大きさ及び集合室断面に対するメタルの均
等供給が問題解決のキーポイントであることを知見し、
更に研究を重ねて本発明を完成するに至ったものであ
る。即ち、請求項１の発明は、外周に溝を設けた回転ホ
イールの前記外周溝と固定シューとにより通路を形成
し、この通路にＡｌ線材を連続的に供給し、前記ホイー
ルの回転に伴い生じる前記通路とＡｌ線材との間の接触
摩擦抵抗により前記Ａｌ線材に押出圧力を発生させて、
前記Ａｌ線材を前記通路の前方に配置した集合室のメタ
ル流入口から集合室内に圧入し、更に前記集合室の先端
部に配置したマンドレルとダイスからなる複合ダイスを
通してＡｌ製管を押出す回転ホイール式押出法におい
て、ホイールに複数の外周溝を設け、集合室の押出方向
の断面積を押出されるＡｌ製管の肉部の断面積の２倍以
上にしたことを特徴とする回転ホイール式押出法による
Ａｌ製管の製造方法である。SUMMARY OF THE INVENTION The present invention has been studied diligently in view of the above circumstances, and the cause of uneven thickness and air entrapment in an extruded Al pipe is caused by a variation in the amount of metal supplied to a composite die. For this stabilization, we found that the size of the collecting chamber where the metal stays and the uniform supply of metal to the cross section of the collecting chamber are the key points in solving the problem,
Further research has led to the completion of the present invention. That is, according to the first aspect of the present invention, a passage is formed by the outer peripheral groove of the rotating wheel having a groove on the outer periphery and the fixed shoe, and an Al wire is continuously supplied to the passage, and the rotation is caused by the rotation of the wheel. By generating an extrusion pressure on the Al wire by contact frictional resistance between the passage and the Al wire,
A rotary wheel that press-fits the Al wire from the metal inflow port of the collecting chamber disposed in front of the passage into the collecting chamber, and further extrudes an Al pipe through a composite die composed of a mandrel and a die disposed at the tip of the collecting chamber. In the extrusion method, a plurality of outer circumferential grooves are provided on the wheel, and the cross-sectional area of the collecting chamber in the extrusion direction is set to be at least twice as large as the cross-sectional area of the flesh portion of the Al pipe to be extruded. This is a method for manufacturing an Al pipe by a method.
【０００５】本発明は押出メタルを滞留させる集合室の
大きさ、つまり集合室の断面積を、押出されるＡｌ製管
の押出量に見合う十分大きな断面積となし、且つこの大
きな断面積の集合室へのメタル供給を均等化する為にホ
イールの外周溝を複数に増やしたものである。以下に本
発明を図を参照して具体的に説明する。図１イ，ロは、
本発明方法の態様例を示すそれぞれ側断面説明図及び上
視断面説明図である。外周に２本の溝を設けた回転ホイ
ール２の前記外周溝１，11と固定シュー３とにより通路
４を形成し、この通路４に押出原料となすＡｌ線材５を
連続的に供給し、前記回転ホイール２の回転に伴い生じ
る前記通路４とＡｌ線材５との間の接触摩擦抵抗により
前記Ａｌ線材５に押出圧力を発生させて、前記Ａｌ線材
５を前記通路４の前方に配置したアバットメント６に突
き当たり、集合室のメタル流入口７から集合室８内に圧
入し、更に前記集合室８の先端部に配置したマンドレル
９とダイス10からなる複合ダイスを通してＡｌ製管12を
押出す方法である。前記集合室８の押出方向の断面積
は、押出されるＡｌ製管12の断面積の２倍以上になって
いる。According to the present invention, the size of the collecting chamber for retaining the extruded metal, that is, the cross-sectional area of the collecting chamber is set to a sufficiently large cross-sectional area commensurate with the extrusion rate of the Al pipe to be extruded. The number of outer circumferential grooves of the wheel is increased to equalize the metal supply to the chamber. Hereinafter, the present invention will be specifically described with reference to the drawings. Fig. 1
It is the side section explanatory drawing and the sectional view explanatory drawing which show the aspect example of the method of this invention, respectively. A passage 4 is formed by the outer peripheral grooves 1 and 11 of the rotating wheel 2 having two grooves on the outer periphery and the fixed shoe 3, and an Al wire 5 to be an extruding raw material is continuously supplied to the passage 4, An abutment in which the Al wire 5 is disposed in front of the passage 4 by generating a pushing pressure on the Al wire 5 due to contact frictional resistance between the passage 4 and the Al wire 5 caused by the rotation of the rotating wheel 2. 6, press-fit into the collecting chamber 8 from the metal inlet 7 of the collecting chamber, and extrude the Al pipe 12 through a composite die composed of a mandrel 9 and a die 10 disposed at the tip of the collecting chamber 8. is there. The cross-sectional area of the collecting chamber 8 in the extrusion direction is at least twice the cross-sectional area of the Al pipe 12 to be extruded.
【０００６】本発明において、回転ホイール２に設ける
外周溝１の本数は２本以上任意であるが、本数が多い程
メタルの集合室８への供給が均等になされ好ましい。又
外周溝１の増加は原料として用いるＡｌ線材５の線径を
細くすることが可能であり、Ａｌ線材５は細い程押出通
路４を短くできるので押出装置の小型化が計れる。In the present invention, the number of the outer peripheral grooves 1 provided on the rotating wheel 2 is arbitrary, but it is preferable that the number of the outer peripheral grooves 1 is two or more. In addition, the increase in the number of the outer circumferential grooves 1 makes it possible to reduce the wire diameter of the Al wire 5 used as a raw material. The thinner the Al wire 5 is, the shorter the extrusion passage 4 is.
【０００７】請求項２の発明は、空気巻込み欠陥は集合
室のメタル流入口の大きさによっても左右されることを
知見してなされたものである。即ち、請求項２の発明
は、請求項１の発明において、集合室の各々のメタル流
入口の断面積Ｓmm2 とアルミニウム線材の断面積Ａmm2
との間に、４Ａ≧Ｓ≧２Ａの関係式が成り立つことを特
徴とする回転ホイール式押出法によるアルミニウム製管
の製造方法である。The invention of claim 2 has been made based on the finding that the air entrapment defect is also affected by the size of the metal inlet of the collecting chamber. That is, the invention of claim 2, claim in one aspect, the metal inlet of each of the collecting chamber cross-sectional area Smm 2 and the cross-sectional area of the aluminum wire Amm 2
And a relational expression of 4A ≧ S ≧ 2A is established between the aluminum pipe and the aluminum pipe.
【０００８】この発明方法において、集合室のメタル流
入口の断面積Ｓを、４Ａ≧Ｓ≧２Ａの関係式を満足する
ように限定した理由は、Ｓが４Ａを超える断面積では、
前記流入口手前のメタル圧力が低下して集合室内に空気
が侵入し、Ａｌ製管に空気の巻込み欠陥が生じる為であ
る。又Ｓが２Ａ未満では、前記流入口手前のメタル圧力
が増加してメタルがアバットメントと外周溝との間から
大量に押出されて製品歩留りが低下する為である。In the method of the present invention, the reason why the cross-sectional area S of the metal inflow port of the collecting chamber is limited so as to satisfy the relational expression of 4A ≧ S ≧ 2A is that when the cross-sectional area of S exceeds 4A,
This is because the metal pressure in front of the inflow port decreases and air enters the collection chamber, causing air entrapment defects in the Al pipe. On the other hand, if S is less than 2 A, the metal pressure before the inflow port increases and a large amount of metal is extruded from between the abutment and the outer peripheral groove, thereby lowering the product yield.
【０００９】[0009]
【作用】本発明方法では、外周溝を設けた回転ホイール
の前記外周溝とシューとにより通路を形成し、この通路
にＡｌ線材を連続的に供給し、前記ホイールの回転に伴
い生じる前記通路とＡｌ線材との間の接触摩擦抵抗によ
り前記Ａｌ線材に押出圧力を発生させて、前記Ａｌ線材
を前記通路の前方に配置した集合室のメタル流入口から
集合室内に圧入し、更に前記集合室の先端部に配置した
マンドレルとダイスからなる複合ダイスを通してＡｌ製
管を押出す回転ホイール式押出法において、ホイールに
複数の外周溝を設けたので、集合室へのメタルの供給が
断面方向に対して均等になされ、且つ集合室の押出方向
の断面積を押出されるＡｌ製管の断面積の２倍以上にし
たので、複合ダイスへのメタルの供給が十分になされ、
依って押出されるＡｌ製管は偏肉や空気の巻込み欠陥の
ない品質良好なものとなる。更に集合室のメタル流入口
の断面積を、Ａｌ線材の断面積に応じて所定の断面積に
限定することにより、空気の巻込み欠陥を一層低減する
ことができる。According to the method of the present invention, a passage is formed by the outer peripheral groove of the rotating wheel provided with the outer peripheral groove and the shoe, and an Al wire is continuously supplied to the passage, and the passage formed by the rotation of the wheel is connected to the passage. An extrusion pressure is generated in the Al wire by contact frictional resistance between the Al wire and the Al wire, and the Al wire is pressed into a collecting chamber from a metal inflow port of a collecting chamber disposed in front of the passage, and further, the In the rotating wheel extrusion method in which an Al tube is extruded through a composite die consisting of a mandrel and a die arranged at the tip, a plurality of outer circumferential grooves are provided on the wheel, so that the supply of metal to the collecting chamber is in the cross-sectional direction. Since the cross-sectional area in the extrusion direction of the collecting chamber is made equal to or more than twice the cross-sectional area of the Al pipe to be extruded, the metal is sufficiently supplied to the composite die,
Accordingly, the extruded Al pipe has good quality without uneven thickness or air entrapment defects. Furthermore, by limiting the cross-sectional area of the metal inlet of the collecting chamber to a predetermined cross-sectional area according to the cross-sectional area of the Al wire, air entrainment defects can be further reduced.
【００１０】[0010]
【実施例】以下に本発明を実施例により詳細に説明す
る。 実施例１ ベルトホイール式連続鋳造圧延方法により製造した1100
系のＡｌ荒引線を回転ホイール式押出方法により、外径
50mmφ, 内径30mmφの円管に連続押出した。回転ホイー
ルには、外周溝の本数が２本のものと１本のものと２種
類の回転ホイールを用いた。Ａｌ荒引線の線径は、回転
ホイールの外周溝の本数が２本の場合10.1ｍｍφ、１本
の場合15.4ｍｍφとした。得られたＡｌ製円管について
外径と肉厚のバラツキ及び空気の巻込み欠陥を調べた。
結果は表１に示した。The present invention will be described below in detail with reference to examples. Example 1 1100 manufactured by a belt wheel type continuous casting and rolling method
The outer diameter of the aluminum rough drawn wire is adjusted to the outer diameter by the rotating wheel extrusion method.
It was continuously extruded into a circular tube of 50 mmφ and inner diameter of 30 mmφ. As the rotating wheel, two types of rotating wheels having one outer circumferential groove, one having one outer circumferential groove, and two types of rotating wheels were used. The diameter of the Al rough drawn wire was 10.1 mmφ when the number of outer circumferential grooves of the rotating wheel was two, and 15.4 mmφ when it was one. The obtained Al circular tube was examined for variations in outer diameter and wall thickness and defects involved in air entrapment.
The results are shown in Table 1.
【００１１】[0011]
【表１】 註）集合室の断面積を円管の断面積で除した値。集
合室のメタル流入口の断面積Ｓ、ＡはＡｌ線材の断面
積、供給本数２本の時は10.1mmφ、１本の時は15.4mm
φ、ＳとＡの単位はmm2 。単位mm、ｎ＝20。 100ｍ
当たりの個数。[Table 1] Note) The value obtained by dividing the sectional area of the collecting room by the sectional area of the circular tube. The cross-sectional areas S and A of the metal inlet of the collecting room are the cross-sectional area of the Al wire rod, 10.1 mmφ when the number of supply is 2 and 15.4 mm when it is 1
The unit of φ, S and A is mm 2 . Unit: mm, n = 20. 100m
Number per hit.
【００１２】実施例２ ベルトホイール式連続鋳造圧延方法により製造した1100
系のＡｌ荒引線を回転ホイール式押出法により、外径22
mm×2.5mm 、肉厚１mmの図３ロに示したのと同じ６穴多
穴管に連続押出した。回転ホイールには、外周溝数が２
本のものと１本のものと２種類のホイールを用いた。Ａ
ｌ荒引線の線径は、ホイールの外周溝数が２本の場合1
0.1ｍｍφ、１本の場合15.4ｍｍφとした。集合室は断
面円形で内径を種々に変えた。得られた多穴管について
実施例１と同じ調査を行った。結果は表２に示した。Example 2 1100 manufactured by a belt wheel type continuous casting and rolling method
The outer diameter of the aluminum wire was adjusted to 22 mm by the rotating wheel extrusion method.
It was continuously extruded into the same 6-hole multi-hole tube as shown in FIG. The number of outer circumferential grooves on the rotating wheel is 2
One wheel and one wheel were used. A
l The diameter of the rough drawn wire is 1 when the number of outer grooves on the wheel is 2.
0.1 mmφ, 15.4 mmφ in case of one. The collecting chamber was circular in cross section and the inside diameter was variously changed. The same investigation as in Example 1 was conducted on the obtained multi-hole tube. The results are shown in Table 2.
【００１３】[0013]
【表２】 [Table 2]
【００１４】表１及び表２より明らかなように、本発明
方法品（No１〜３，No６〜８）は、外径、肉厚ともバラ
ツキの小さいものであった。押出比は大きい程バラツキ
は減少する傾向にあるが、余り大きくなるとホイールか
らのメタルの供給箇所が２本に限定されている為集合室
へのメタルの供給が均等性が低下して逆にバラツキが増
加する傾向が認められた。空気の巻込み欠陥は殆ど認め
られなかった。他方、比較例品のNo５，９は、ホイール
の外周溝が１本で少ない為集合室へのメタルの供給が均
等でなくなり、又No４は集合室の断面積がＡｌ製円管の
断面積の２倍未満であった為いずれもバラツキが大きく
なった。空気の巻込み欠陥は、いずれにも多数認められ
た。尚、多穴管の場合の押出比が、円管の場合より大き
かったのは、多穴管の形状が偏平状であったのに対し集
合室の断面を円形とした為である。As apparent from Tables 1 and 2, the products of the present invention (Nos. 1 to 3 and Nos. 6 to 8) had small variations in both outer diameter and thickness. The dispersion tends to decrease as the extrusion ratio increases, but if the extrusion ratio is too large, the supply of metal from the wheel is limited to two, and the uniformity of metal supply to the collecting chamber decreases, conversely causing the dispersion. Tended to increase. Almost no air entrapment defects were observed. On the other hand, Nos. 5 and 9 of the comparative examples have a single wheel with only one outer circumferential groove, so that the supply of metal to the collecting chamber is not uniform, and No. 4 has a cross-sectional area of the collecting chamber of Al circular tube. Since it was less than twice, the variation became large in each case. Many air entrapment defects were observed. The reason why the extrusion ratio in the case of the multi-hole tube was larger than that in the case of the circular tube was that the cross-section of the collecting chamber was circular while the shape of the multi-hole tube was flat.
【００１５】実施例３ 実施例１のNo２について、集合室のメタル流入口の径を
種々に変えてＡｌ製管を押出した。結果は表３に示し
た。Example 3 For No. 2 of Example 1, an Al tube was extruded by changing the diameter of the metal inlet of the collecting chamber in various ways. The results are shown in Table 3.
【００１６】[0016]
【表３】 [Table 3]
【００１７】実施例４ 実施例２のNo６について、集合室のメタル流入口の径を
種々に変えてＡｌ製管を押出した。結果は表４に示し
た。Example 4 For No. 6 of Example 2, an Al tube was extruded by changing the diameter of the metal inflow port of the collecting chamber in various ways. The results are shown in Table 4.
【００１８】[0018]
【表４】 [Table 4]
【００１９】表３及び表４より明らかなように、本発明
方法品（No10〜12, No13〜15）は、実施例１及び実施例
２の場合と同様に外径及び肉厚のバラツキが小さく、空
気の巻込み欠陥はいずれも少なかったが、集合室のメタ
ル流入口の断面積Ｓが、４Ａ≧Ｓ≧２Ａの関係式（但
し、ＡはＡｌ線材の断面積。）を満足せず、４Ａを超え
たものNo12,15 は、空気の巻込み欠陥が幾分増加した。As is clear from Tables 3 and 4, the products of the present invention (Nos. 10 to 12 and Nos. 13 to 15) have small variations in outer diameter and wall thickness as in the case of Examples 1 and 2. Although the air entrapment defect was small, the cross-sectional area S of the metal inlet of the collecting chamber did not satisfy the relational expression of 4A ≧ S ≧ 2A (where A is the cross-sectional area of the Al wire). Nos. 12 and 15 above 4A had some increase in air entrapment defects.
【００２０】[0020]
【効果】以上述べたように、本発明方法によれば、複合
ダイスを設置した集合室には、押出されるメタル量に対
し十分な量のメタルが滞留し、しかも前記集合室には、
メタルがホイールの複数の外周溝から均等に供給される
ので、前記複合ダイスを通して押出されるＡｌ製管は、
偏肉が少なく、寸法精度に優れ、且つ空気の巻込み欠陥
の少ない品質良好なものとなる。更に集合室のメタル流
入口の断面積を所定範囲に限定することにより空気の巻
込み欠陥を一層低減することが可能で、工業上顕著な効
果を奏する。As described above, according to the method of the present invention, a sufficient amount of metal stays in the collecting chamber in which the composite dies are installed, with respect to the amount of metal to be extruded.
Since the metal is uniformly supplied from the plurality of outer circumferential grooves of the wheel, the Al pipe extruded through the composite die is:
Good quality with little unevenness, excellent dimensional accuracy, and few air entrapment defects. Further, by limiting the cross-sectional area of the metal inflow port of the collecting chamber to a predetermined range, air entrapment defects can be further reduced, and this has a remarkable industrial effect.
【図１】本発明の回転ホイール式押出法によるＡｌ製管
の製造方法の態様例を示す説明図である。FIG. 1 is an explanatory view showing an example of an embodiment of a method of manufacturing an Al pipe by a rotary wheel extrusion method of the present invention.
【図２】従来の回転ホイール式押出法によるＡｌ製管の
製造方法の説明図である。FIG. 2 is an explanatory diagram of a method of manufacturing an Al pipe by a conventional rotary wheel extrusion method.
【図３】Ａｌ製管の態様例を示す断面図である。FIG. 3 is a sectional view showing an example of an embodiment of an Al pipe.
１，11 外周溝 ２ 回転ホイール ３ 固定シュー ４ 通路 ５ アルミニウム線材 ６ アバットメント ７ 集合室のメタル流入口 ８ 集合室 ９ マンドレル 10 ダイス 12 アルミニウム製管 13 仕切り 1,11 Outer peripheral groove 2 Rotating wheel 3 Fixed shoe 4 Passage 5 Aluminum wire 6 Abutment 7 Metal inlet of collective room 8 Collective room 9 Mandrel 10 Dice 12 Aluminum pipe 13 Partition
フロントページの続き (56)参考文献 特開 昭59−223113（ＪＰ，Ａ) 特開 昭63−183716（ＪＰ，Ａ) 特開 平５−169135（ＪＰ，Ａ) 特開 平４−333318（ＪＰ，Ａ) 実開 昭58−4212（ＪＰ，Ｕ) 実公 昭58−49133（ＪＰ，Ｙ２) (58)調査した分野(Int.Cl.6，ＤＢ名) B21C 23/00 Continuation of the front page (56) References JP-A-59-223113 (JP, A) JP-A-63-183716 (JP, A) JP-A-5-169135 (JP, A) JP-A-4-333318 (JP) , A) Japanese Utility Model Sho 58-4212 (JP, U) Japanese Utility Model Sho 58-49133 (JP, Y2) (58) Fields investigated (Int. Cl. 6 , DB name) B21C 23/00
Claims (2)
周溝と固定シューとにより通路を形成し、この通路にア
ルミニウム線材を連続的に供給し、前記ホイールの回転
に伴い生じる前記通路とアルミニウム線材との間の接触
摩擦抵抗により前記アルミニウム線材に押出圧力を発生
させて、前記アルミニウム線材を前記通路の前方に配置
した集合室のメタル流入口から集合室内に圧入し、更に
前記集合室の先端部に配置したマンドレルとダイスから
なる複合ダイスを通してアルミニウム製管を押出す回転
ホイール式押出法において、ホイールに複数の外周溝を
設け、集合室の押出方向の断面積を押出されるアルミニ
ウム製管の断面積の２倍以上にしたことを特徴とする回
転ホイール式押出法によるアルミニウム製管の製造方
法。1. A passage is formed by the outer peripheral groove of a rotating wheel having a groove on the outer periphery and a fixed shoe, and an aluminum wire is continuously supplied to the passage. Extrusion pressure is generated in the aluminum wire by contact frictional resistance between the wire and the aluminum wire, and the aluminum wire is pressed into the collection chamber from a metal inflow port of a collection chamber disposed in front of the passage, and further, a tip of the collection chamber. In a rotating wheel extrusion method in which an aluminum tube is extruded through a composite die consisting of a mandrel and a die arranged in a part, a plurality of outer circumferential grooves are provided on the wheel, and the cross-sectional area in the extrusion direction of the collecting chamber is extruded from the aluminum tube. A method for manufacturing an aluminum pipe by a rotary wheel extrusion method, wherein the cross-sectional area is twice or more.
mm2 とアルミニウム線材の断面積Ａmm2 との間に、４Ａ
≧Ｓ≧２Ａの関係式が成り立つことを特徴とする請求項
１記載の回転ホイール式押出法によるアルミニウム製管
の製造方法。2. A cross-sectional area S of each metal inlet of the collecting chamber.
between the cross-sectional area Amm 2 of mm 2 and the aluminum wire, 4A
2. The method according to claim 1, wherein a relational expression of .gtoreq.S.gtoreq.2A is satisfied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8601892A JP2871945B2 (en) | 1992-03-09 | 1992-03-09 | Manufacturing method of aluminum pipe by rotary wheel extrusion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8601892A JP2871945B2 (en) | 1992-03-09 | 1992-03-09 | Manufacturing method of aluminum pipe by rotary wheel extrusion method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05245531A JPH05245531A (en) | 1993-09-24 |
| JP2871945B2 true JP2871945B2 (en) | 1999-03-17 |
Family
ID=13874933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8601892A Expired - Fee Related JP2871945B2 (en) | 1992-03-09 | 1992-03-09 | Manufacturing method of aluminum pipe by rotary wheel extrusion method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2871945B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9924160D0 (en) * | 1999-10-12 | 1999-12-15 | Bwe Ltd | Continuous extrusion apparatus |
| CN112756411A (en) * | 2021-01-29 | 2021-05-07 | 重庆鸽牌电线电缆有限公司 | Continuous extrusion method for copper section with ultra-large sectional area |
-
1992
- 1992-03-09 JP JP8601892A patent/JP2871945B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05245531A (en) | 1993-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1161835A (en) | Finned tube for a heat exchanger | |
| US2463997A (en) | Method of making integral external and internal finned tubing | |
| JPH0857535A (en) | Pipe with multiplex wound rib and its production | |
| GB1184474A (en) | Improvements in or relating to Extruders | |
| JP2871945B2 (en) | Manufacturing method of aluminum pipe by rotary wheel extrusion method | |
| JPH03251688A (en) | Manufacture of tube member for heat exchanger | |
| JPH02192818A (en) | Production of thin-wall flat extruded tube | |
| US2868046A (en) | Apparatus for manufacturing integral finned tubing | |
| JPH03193209A (en) | Die for extruding perforated tube | |
| JP3091156B2 (en) | Dies for flat perforated tube extrusion | |
| CN208288682U (en) | A kind of new structural roller drawing-die | |
| JPH05169135A (en) | Rotary wheel type continuous extruding method | |
| JP2000051929A (en) | Rotary wheel type continuous extrusion device and production of metal extruded material | |
| JPS5939214B2 (en) | Method for manufacturing heat exchanger tubes | |
| US2741363A (en) | Extrusion press attachments for extruding profiles, tubes and other similar products | |
| CN210999974U (en) | Packaging film blowing machine | |
| CN210791978U (en) | Long and short combined sizing sleeve for extrusion cooling and sizing of medical expansion pipe | |
| JP3121409B2 (en) | Extrusion die for honeycomb structure | |
| CN108526236A (en) | It is close to wait the more corner continuous extrusion devices in channels | |
| JP3155734B2 (en) | Rotary wheel type continuous extrusion device | |
| CN214683539U (en) | Rolling and die drawing apparatus | |
| CN216708317U (en) | Silica gel extrusion pipe setting machine | |
| CN219632242U (en) | Mould for extruding eight micro-channel flat tubes by one mould | |
| CN217095046U (en) | Stock undergauge machine is used in stock production | |
| JPS59286B2 (en) | Continuous rolling method for pipes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080108 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 10 Free format text: PAYMENT UNTIL: 20090108 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 11 Free format text: PAYMENT UNTIL: 20100108 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 12 Free format text: PAYMENT UNTIL: 20110108 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 13 Free format text: PAYMENT UNTIL: 20120108 |
|
| LAPS | Cancellation because of no payment of annual fees |