JPH09271833A - Manufacture of combined flange member of aluminum tube - Google Patents
Manufacture of combined flange member of aluminum tubeInfo
- Publication number
- JPH09271833A JPH09271833A JP8085164A JP8516496A JPH09271833A JP H09271833 A JPH09271833 A JP H09271833A JP 8085164 A JP8085164 A JP 8085164A JP 8516496 A JP8516496 A JP 8516496A JP H09271833 A JPH09271833 A JP H09271833A
- Authority
- JP
- Japan
- Prior art keywords
- flange
- composite
- combined
- cross
- aluminum alloy
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、カークーラー等の
配管用アルミニウム管の継手フランジのように、アルミ
ニウム管本体にロウ付けされると共にネジ等を介して相
手側部材に締結固定されるフランジの素材としてのアル
ミニウム管用複合フランジ部材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flange that is brazed to an aluminum pipe body and fastened and fixed to a mating member through a screw or the like like a joint flange of an aluminum pipe for a car cooler or the like. The present invention relates to a method for manufacturing a composite flange member for an aluminum pipe as a raw material.
【０００２】[0002]
【従来の技術】カークーラー等の配管用アルミニウム
（以下Ａｌと表す）管の継手としてフランジは、一般に
炉中ロウ付けによってＡｌ管本体に接合されており、ま
た、その材料としては、ロウ付け性や耐食性の観点から
Ａ3003材が多く用いられている。一方、Ａ3003材は比較
的強度が低いことから、このフランジに相手側部材に固
定するためのネジを直接に設けると、ネジ強度が不十分
になるため、従来では、例えば〔図３〕に示すように、
Ａｌ管本体(31)にロウ付けされるフランジ(32)では、そ
の締結部位に設けた貫通孔(32a) に、Ａ7N01等の高強度
Ａｌ材からなる筒状部材(33)を圧入または機械的にカシ
メて固定し、これにネジを設けて締結部の強度を確保し
ていた。2. Description of the Related Art As a joint of an aluminum (hereinafter referred to as Al) pipe for a car cooler or the like, a flange is generally joined to an Al pipe main body by brazing in a furnace, and its material is brazability. A3003 material is often used from the viewpoint of corrosion resistance. On the other hand, since the A3003 material has a relatively low strength, if a screw for fixing to the mating member is directly provided on this flange, the screw strength becomes insufficient. Therefore, conventionally, for example, as shown in FIG. like,
In the flange (32) brazed to the Al pipe body (31), a tubular member (33) made of high-strength Al material such as A7N01 is press-fitted or mechanically inserted into the through hole (32a) provided in the fastening portion. It was fixed by crimping to and secured with a screw to secure the strength of the fastening part.
【０００３】しかし、この方法では、締結後の筒状部材
(33)に回動やズレが生じないように確実に固定するに
は、該筒状部材(33)の外周にローレット加工を施した
り、フランジ(32)との間の嵌合精度を高める必要が必要
があるため、カシメ加工他工程が煩雑となり、また、フ
ランジ(32)自体の剛性は高め難いので、締結後の相手側
部材との間の気密性が不確かなものとなり易いという問
題があった。そこで、これら問題を解消するための検討
がなされ、例えば、特開平 3-412号公報では、押出によ
って２種以上のＡｌ材を複合化し、これによりロウ付性
と高強度とを併せもつ熱伝管継手用のＡｌ複合材料の製
造方法が提案されている。However, according to this method, the tubular member after fastening is
In order to securely fix the (33) so that it does not rotate or shift, it is necessary to knurl the outer periphery of the tubular member (33) or to improve the fitting accuracy with the flange (32). Therefore, there is a problem that the caulking process and other steps become complicated and the rigidity of the flange (32) itself is difficult to increase, so that the airtightness with the mating member after fastening tends to be uncertain. It was Therefore, investigations have been made to solve these problems. For example, in Japanese Patent Laid-Open No. 3-412, two or more kinds of Al materials are compounded by extrusion, which results in heat transfer having both brazing property and high strength. A method of manufacturing an Al composite material for a pipe joint has been proposed.
【０００４】この方法（特開平 3-412号）では、〔図
２〕の (a)図に示すように、低ＭｇのＡｌ合金材（Ａ30
03材等）からなる筒状体(22)の中空部に、高ＭｇのＡｌ
合金材（Ａ7N01材等）からなる柱状体(23)を挿入して中
実２層構成のビレット(21)を形成し、このビレット(21)
を加熱して、 (b)図に示すように、十字形の型孔(24a)
を設けたダイス(24)を用いて間接押出しを行い、これに
よって２種のＡｌ合金材を複合一体化させ、 (c)図に示
すように、十字形の断面形状を有する複合押出部材(25)
を得る。次いで、この複合押出部材(25)を、 (d)図に示
すように４分割に切断して、低ＭｇＡｌ合金部材(26a)
の一端に高ＭｇＡｌ合金部材(26b) が圧接された成形品
(26)を得る。次に、この成形品(26)を所定の長さに切断
した後、鍛造加工により、 (e)図に示すようにＡｌ熱伝
管(28)にロウ付けされる本体部(27a) を形成すると共
に、相手側部材に締結されるナット部(27b) を膨出成形
し、次いで、 (f)図に示すように、本体部(27a) に圧接
された高ＭｇＡｌ合金材からなるナット部(27b) にネジ
(27c) を設けて、当該Ａｌ熱伝管(28)の継手としてのフ
ランジ(27)とする。In this method (Japanese Patent Laid-Open No. 3-412), as shown in FIG. 2 (a), a low Mg Al alloy material (A30
In the hollow part of the cylindrical body (22) made of (03 material etc.), high Mg Al
A billet (21) having a solid two-layer structure is formed by inserting a columnar body (23) made of an alloy material (A7N01 material or the like).
Heating the cruciform mold cavity (24a) as shown in (b).
Indirect extrusion is performed by using a die (24) provided with the above, and thereby two kinds of Al alloy materials are compositely integrated, and as shown in (c), a composite extrusion member (25) having a cross-shaped cross section is formed. )
Get. Next, the composite extruded member (25) is cut into four parts as shown in FIG. (D) to obtain a low MgAl alloy member (26a).
Molded product in which the high MgAl alloy member (26b) is pressure-welded to one end of the
Get (26). Next, after cutting this molded product (26) to a predetermined length, by forging, a main body portion (27a) to be brazed to the Al heat transfer tube (28) is formed as shown in FIG. At the same time, the nut part (27b) to be fastened to the mating member is bulged and then, as shown in Fig. (F), the nut part made of a high MgAl alloy material pressed against the main body part (27a) ( 27b) screw
(27c) is provided to serve as a flange (27) as a joint of the Al heat transfer tube (28).
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来の製造方法では、２種のＡｌ合金材を一体化させた複
合押出素材が得られ、これによりロウ付性と締結強度と
を併せ満足するＡｌ管用フランジ部材を製造できるもの
の、その複合押出素材は１つの型孔を有するダイスによ
り一体に押出成形されるため、その押出後に、縦方向に
所定数に分割切断した上で所定の長さに切断し、更には
鍛造成形等を加えて、個別のフランジ部材とする必要が
あり、その製造に要する工程数が多くなってコスト高と
なる。However, according to the above-mentioned conventional manufacturing method, a composite extruded material in which two kinds of Al alloy materials are integrated is obtained, and by this, Al satisfying both brazing property and fastening strength is obtained. Although a pipe flange member can be manufactured, the composite extruded material is integrally extruded by a die having a single die hole, so after extrusion, it is cut into a predetermined number in the longitudinal direction and then cut into a predetermined length. In addition, it is necessary to add forging and the like to form individual flange members, which increases the number of steps required for manufacturing the flange members, resulting in high cost.
【０００６】本発明は上記従来技術の問題点を解消する
ためになされたもので、押出により、２種のアルミニウ
ム合金材を複合一体化させると共に、より製品形状に近
い断面形状に成形することができ、よって工程数を減少
して生産効率の向上が図れるアルミニウム管用複合フラ
ンジ部材の製造方法を提供することを目的とする。The present invention has been made in order to solve the above-mentioned problems of the prior art. It is possible to combine two kinds of aluminum alloy materials into a composite by extrusion and to form a cross-sectional shape closer to a product shape. An object of the present invention is to provide a method of manufacturing a composite flange member for an aluminum pipe, which can reduce the number of steps and improve the production efficiency.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明は以下の構成とされている。すなわち、本
発明に係るアルミニウム管用複合フランジ部材の製造方
法は、押出によって２種のアルミニウム合金材を複合
し、アルミニウム管にロウ付けされる部位と相手側部材
に締結される部位との材質が異なる構成とされたアルミ
ニウム管用複合フランジ部材の製造方法において、前記
２種の内の一方のアルミニウム合金材からなる筒状体の
中空部に他方のアルミニウム合金材からなる柱状体を挿
入充填して中実２層構成のビレットを形成し、このビレ
ットを加熱して、製品フランジの平面形状に対応する断
面形状の複数の型孔を同心円上に等間隔かつ軸対称に設
けたダイスを用いて押出しを行い、それぞれが製品フラ
ンジの平面形状に対応する断面形状を有し、かつ断面方
向で前記２種のアルミニウム合金材が圧接一体化された
複数の複合素材を同時に成形し、次いでこの複合素材を
製品フランジの厚さに対応する長さに切断して個別の複
合フランジ部材とすることを特徴とする。In order to achieve the above object, the present invention has the following arrangement. That is, in the method for manufacturing a composite flange member for an aluminum pipe according to the present invention, two types of aluminum alloy materials are compounded by extrusion, and the material brazed to the aluminum pipe and the material fastened to the mating member are different in material. In the method for manufacturing a composite flange member for an aluminum pipe having the above-mentioned structure, a hollow body of a cylindrical body made of one of the two types of aluminum alloy material is inserted and filled with a columnar body made of the other aluminum alloy material to be solid. A billet having a two-layer structure is formed, and the billet is heated and extruded using a die in which a plurality of mold holes having a cross-sectional shape corresponding to the planar shape of the product flange are concentrically arranged at equal intervals and in axial symmetry. , Each of which has a cross-sectional shape corresponding to the planar shape of the product flange, and in which the two kinds of aluminum alloy materials are pressed and integrated in the cross-sectional direction. Molding a slip material simultaneously, then characterized by a separate composite flange member is cut into a length corresponding to the composite material in the product flange thickness.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。〔図１〕は、本発明の１実施例の
説明図であって、 (a)図は製品フランジの形態および適
用状態の説明斜視図、 (b)図〜 (e)図は製造工程の説明
図である。Embodiments of the present invention will be described below with reference to the drawings. [FIG. 1] is an explanatory view of one embodiment of the present invention, in which (a) is a perspective view showing the form and application state of a product flange, and (b) to (e) are explanations of a manufacturing process. It is a figure.
【０００９】まず、〔図１〕の (a)図により本実施例で
製造の対象とするフランジについて説明する。本実施例
での製品としてのフランジ(11)は、同 (a)図に示すよう
に、平面外郭形状を大小の矩形を組み合わせた凸字状に
形成され、その小さい方の矩形部を本体としてのＡｌ管
(10)に接続されるロウ付部(12)とし、大きい方の矩形部
を同Ａｌ管(10)が接続される相手側部材(14)への締結部
(13)としている。また、このフランジ(11)は、ロウ付部
(12)の側端面にＡｌ管(10)の外径と同半径の円弧面とし
た接続面(12a) を形成し、その接続面(12a) を介してＡ
ｌ管(10)外周に炉中ロウ付けされ、また締結部(13)には
１対のネジ孔(13a) を設け、そのネジ孔(13a) にセット
したボルト(15)を介して相手側部材(14)に締結され、こ
れにより配管用のＡｌ管(10)を相手側部材(14)に連結保
持する構成とされている。本実施例では、上記フランジ
の素材として２種のＡｌ合金材を複合一体化した複合フ
ランジ部材を製造する。First, the flange to be manufactured in this embodiment will be described with reference to FIG. The flange (11) as a product in the present embodiment is, as shown in the same figure (a), formed in a convex shape in which a planar outer shape is formed by combining large and small rectangles, and the smaller rectangular portion is used as a main body. Al tube
The brazed portion (12) connected to (10) and the larger rectangular portion is the fastening portion to the mating member (14) to which the aluminum pipe (10) is connected.
(13). Also, this flange (11) is a brazed part.
A connecting surface (12a) is formed on the side end surface of (12), which is an arcuate surface having the same radius as the outer diameter of the Al pipe (10).
The outer circumference of the l-tube (10) is brazed in the furnace, and the fastening part (13) is provided with a pair of screw holes (13a), and the other side is connected through the bolts (15) set in the screw holes (13a). It is fastened to the member (14), whereby the Al pipe (10) for piping is connected and held to the mating member (14). In the present embodiment, a composite flange member in which two kinds of Al alloy materials are compositely integrated as a material for the flange is manufactured.
【００１０】次に、その製造工程を (b)図〜 (e)図によ
り説明する。まず、Ａ7N01材(M1)からなる筒状体(2)
と、この筒状体(2) の中空部の径より僅かに小さい外径
で、同長さとされたＡ3003材(M2)からなるの柱状体(3)
とを製作すると共に、その筒状体(2) の中空部に柱状体
(3) を挿入充填して、 (b)図に示すような中実２層構成
のビレット(1) を製作した。Next, the manufacturing process will be described with reference to FIGS. First, a tubular body (2) made of A7N01 material (M 1 ).
And a columnar body (3) made of A3003 material (M 2 ) having an outer diameter slightly smaller than the diameter of the hollow portion of the tubular body (2) and having the same length.
And the columnar body in the hollow part of the tubular body (2).
By inserting and filling (3), a billet (1) having a solid two-layer structure as shown in Fig. (B) was manufactured.
【００１１】次いで、このビレット(1) を所定温度に加
熱し、 (c)図に示すように、間接押出プレス(6) による
押出成形を行った。ここで、本実施例では、その平面図
である (d)図に示すように、前記の製品フランジ(11)の
平面外郭形状に対応する断面形状の４つの型孔(7a)を、
同心円上に等間隔かつ軸心に対して軸対称に設けてなる
ダイス(7) を用い、押出温度 450℃、押出速度約 5m/mi
n の条件で行い、この間接押出成形により (e)図に示す
ように、それぞれが前記製品フランジ(11)の平面外郭形
状に対応する断面形状を有し、かつ断面方向において前
記Ａ7N01材(M1)とＡ3003材(M2)とが圧接一体化された４
本の複合素材(4) を同時に成形した。Next, the billet (1) was heated to a predetermined temperature, and extrusion molding was carried out by an indirect extrusion press (6) as shown in FIG. Here, in the present embodiment, as shown in the plan view (d), four mold holes (7a) having a cross-sectional shape corresponding to the planar outer shape of the product flange (11) are formed,
Using dies (7) that are installed on concentric circles at equal intervals and symmetrically about the axis, extrusion temperature is 450 ° C and extrusion speed is about 5 m / mi.
As shown in Fig. (e), this indirect extrusion molding has a cross-sectional shape corresponding to the flat outer shape of the product flange (11), and the A7N01 material (M 1 ) and A3003 material (M 2 ) were integrated by pressure welding 4
The composite material (4) of the book was molded at the same time.
【００１２】次いで、これら複合素材(4) を、前記製品
フランジ(11)の厚さに対応する長さに切断して、個別の
複合フランジ部材(5) を得た。ここで、各複合フランジ
部材(5) は、 (e)図に示したように、平面外郭形状を大
小の矩形を組み合わせた凸字状に形成されて、前記の製
品フランジ(11)とニャネットシェイプであり、かつ、そ
の小さい方の矩形部をＡ3003材(M2)、大きい方の矩形部
をＡ7N01材(M1)で構成されたものとなる。なお、この複
合フランジ部材(5) のＡ3003材(M2)とＡ7N01材(M1)との
構成断面積の比率は、前記ビレット(1) の筒状体(2) と
柱状体(3) との断面積率によって設定される。すなわ
ち、前記ビレット(1) の筒状体(2) と柱状体(3) との断
面積率を、前記４本の複合素材(4) におけるＡ7N01材(M
1)の断面積の総和とＡ3003材(M2)の断面積の総和との比
率と同比率に設定することで、複合フランジ部材(5)に
おける両者の構成断面積率を所期の比率とすることがで
きる。Next, the composite material (4) was cut into a length corresponding to the thickness of the product flange (11) to obtain individual composite flange members (5). Here, each composite flange member (5) is formed into a convex shape by combining large and small rectangles in the plane outer shape, as shown in FIG. (E), and the product flange (11) and Nyanet The shape is such that the smaller rectangular portion is made of A3003 material (M 2 ), and the larger rectangular portion is made of A7N01 material (M 1 ). The ratio of the sectional areas of the A3003 material (M 2 ) and the A7N01 material (M 1 ) of the composite flange member (5) is the cylindrical body (2) and the columnar body (3) of the billet (1). It is set by the cross-sectional area ratio of and. That is, the cross-sectional area ratios of the cylindrical body (2) and the columnar body (3) of the billet (1) are calculated from the A7N01 material (M
By setting the ratio to the same as the ratio of the total cross-sectional area of 1 ) and the total cross-sectional area of A3003 material (M 2 ), the compositional cross-sectional area ratio of both of them in the composite flange member (5) can be set to the desired ratio. can do.
【００１３】続いて、これら複合フランジ部材(5) に所
定の時効処理を施した後（本実施例では 170℃／6Hr の
条件）、Ａ7N01材(M1)で構成された大きい方の矩形部、
つまり締結部とされる部位に対のネジ孔を加工し、また
その他必要箇所に仕上加工を施し、以上の工程により前
記の製品フランジ(11)を製造した。Then, after subjecting these composite flange members (5) to a predetermined aging treatment (170 ° C./6 Hr condition in this embodiment), the larger rectangular portion made of A7N01 material (M 1 ). ,
That is, a pair of screw holes were machined in a portion to be a fastening portion, and finishing processing was performed in other necessary portions, and the product flange (11) was manufactured by the above steps.
【００１４】また、時効処理後の複合フランジ部材(5)
からの供試材を破断し、圧接されたＡ7N01材(M1)とＡ30
03材(M2)の境界部の健全性をミクロ組織顕鏡によって調
査すると共に、締結部とされるＡ7N01材(M1)の、厚さ方
向Ｌ（押出方向）と横方向Ｔ（押出方向に直交する方
向）との機械的性質と、ロウ付部とされるＡ3003材(M2)
のロウ付け性を調査した。The composite flange member (5) after aging treatment
A7N01 material (M 1 ) and A30 fractured and pressure welded
The soundness of the boundary part of 03 material (M 2 ) is investigated by a microstructure microscope, and the thickness direction L (extrusion direction) and the lateral direction T (extrusion direction) of A7N01 material (M 1 ) which is the fastening part are examined. (Direction orthogonal to the) and mechanical properties of A3003 (M 2 )
Was investigated for brazing.
【００１５】その結果、境界部のミクロ組織は健全で両
者が強固に圧接されたことを示し、またＡ7N01材の各試
料は、〔表１〕に示すように、それぞれ JISを満足する
高強度を示し、またＡ3003材の各試料のロウ付け性は、
いずれも良好であった。As a result, it was shown that the microstructure at the boundary was sound and the two were pressed firmly together. Also, as shown in [Table 1], each sample of A7N01 material had a high strength satisfying JIS. The brazability of each sample of A3003 material is
All were good.
【００１６】[0016]
【表１】 [Table 1]
【００１７】一方、製品としてのフランジ(11)は、 (a)
図に示すように配管用のＡｌ管(10)にロウ付けして一体
化させ、これを閉回路とされたモデル部材に、ボルト(1
4)を介して所定トルクで締結・接続すると共に、そのＡ
ｌ管(10)内に0.5MPaの圧力をかけて、水中にて接続部か
らの気泡発生の有無を確認して、それぞれの気密性を調
べた。その結果、いずれの気密テストも良好であった。On the other hand, the flange (11) as a product is (a)
As shown in the figure, it is brazed to the Al pipe (10) for piping and integrated, and the bolt (1
4) and fasten and connect with a predetermined torque, and
A pressure of 0.5 MPa was applied to the inside of the l-tube (10), and it was confirmed whether or not bubbles were generated from the connection portion in water, and the airtightness of each was examined. As a result, all the airtight tests were good.
【００１８】これらのことにより、本発明方法で製造さ
れたフランジは、所定トルクの下で相手側部材に締結さ
れて、本体としてのＡｌ管を気密かつ確実に連結・保持
するに十分なロウ付け性と強度とを有することが確認さ
れた。また、複数の型孔を同心円上に等間隔かつ軸対称
に設けたダイスを用いて、２種のＡｌ合金材を圧接一体
化した複数の複合素材を同時に成形することで、前述の
従来技術のように押出後に縦方向に分割切断する必要が
なく、また、それぞれの断面形状をよりネットシェイプ
に成形でき、これにより以降の工程数を大幅に減少して
生産効率を向上させることができる。As a result of the above, the flange manufactured by the method of the present invention is fastened to the mating member under a predetermined torque, and brazing is sufficient for airtightly and securely connecting and holding the Al tube as the main body. It was confirmed to have both sex and strength. In addition, by simultaneously molding a plurality of composite materials in which two kinds of Al alloy materials are pressure-contact integrated by using a die in which a plurality of mold holes are provided on a concentric circle at equal intervals and in axial symmetry, As described above, it is not necessary to divide and cut in the vertical direction after extrusion, and each cross-sectional shape can be formed into a more net shape, which can significantly reduce the number of subsequent steps and improve production efficiency.
【００１９】なお、上記実施例では、その接続部の側端
面を本体としてＡｌ管外周面にロウ付けする形態のフラ
ンジを対象したが、これは１例であって、本発明は、例
えば〔図２〕および〔図３〕に示したように、接続部を
Ａｌ管に外挿してロウ付けする形態のフランジに適用し
て同様の効果が得られることは言うまでもない。また、
その複合フランジ部材は、接続部がＡ3003材、締結部が
Ａ7N01材で構成されたもとしたが、これは１例であっ
て、接続部を構成するＡｌ合金材としては、ロウ付け性
に優れているものであれば、例えばＡ3003、Ａ6061、Ａ
7003などを適用でき、また締結部を構成するＡｌ合金材
としては、締結トルクに耐える強度を有するものであれ
ば、Ａ7N01材以外のＡｌ合金材を適用できる。また、押
出は間接押法を適用したが、その押出には直接押出法を
適用することもできる、しかし間接押法ではデッドゾー
ンの形成が抑えられ、押出全長にわたり均一なメタルフ
ローを得易いことから、実施に際しては間接押法を採用
されることを推奨する。In the above embodiment, the flange in which the side end surface of the connecting portion is used as the main body to be brazed to the outer peripheral surface of the Al pipe is targeted, but this is only an example, and the present invention is not limited to the one shown in FIG. It is needless to say that the same effect can be obtained by applying it to the flange in which the connecting portion is externally inserted in the Al tube and brazed as shown in FIGS. 2] and [FIG. 3]. Also,
The composite flange member is based on the assumption that the connecting portion is made of A3003 material and the fastening portion is made of A7N01 material, but this is only an example, and the Al alloy material forming the connecting portion is excellent in brazing property. For example, A3003, A6061, A
7003 and the like can be applied, and as the Al alloy material forming the fastening portion, an Al alloy material other than the A7N01 material can be applied as long as it has strength to withstand the fastening torque. In addition, although the indirect extrusion method was applied for extrusion, the direct extrusion method can also be applied for that extrusion, but in the indirect extrusion method, the formation of dead zones is suppressed and it is easy to obtain a uniform metal flow over the entire extrusion length. Therefore, it is recommended to use the indirect push method for implementation.
【００２０】[0020]
【発明の効果】以上に述べたように、本発明によれば、
複数の孔型を設けたダイスを用いた押出により複数の複
合素材を同時に成形し、２種のアルミニウム合金材を複
合一体化させると共に、より製品形状に近い断面形状に
成形された複合フランジ部材を得ることができ、よって
工程数を減少して生産効率を向上させることができる。As described above, according to the present invention,
A plurality of composite materials are simultaneously molded by extrusion using a die provided with a plurality of holes, and two kinds of aluminum alloy materials are compositely integrated, and a composite flange member molded into a cross-sectional shape closer to the product shape is formed. Therefore, the number of steps can be reduced and the production efficiency can be improved.
【図１】本発明の１実施例の説明図であって、 (a)図は
製品フランジの形態および適用状態の説明斜視図、 (b)
図〜 (e)図は製造工程の説明図である。FIG. 1 is an explanatory view of an embodiment of the present invention, in which (a) is an explanatory perspective view of the form and applied state of a product flange, (b)
Drawing- (e) is an explanatory view of a manufacturing process.
【図２】従来のＡｌ複合材料の製造方法の説明図であ
る。FIG. 2 is an explanatory diagram of a conventional method for manufacturing an Al composite material.
【図３】従来のＡｌ管用フランジの構成を示す断面図で
ある。FIG. 3 is a cross-sectional view showing a structure of a conventional Al pipe flange.
(1) --ビレット、(2) --筒状体、(3) --柱状体、(4) --
複合素材、(5) --複合フランジ部材、(6) --間接押出プ
レス、(7) --ダイス、(7a)--型孔、(10)-- Ａｌ管、(1
1)--フランジ、(12)--ロウ付部、(12a)-- 接続面、(13)
--締結部、(13a)-- ネジ孔 (14)--相手側部材、(15)--
ボルト、(M1)-- Ａ7N01材、(M2)--Ａ3003材。(1) --Billet, (2) --Cylindrical body, (3) --Columnar body, (4)-
Composite material, (5) --Composite flange member, (6) --Indirect extrusion press, (7) --Die, (7a)-Mold hole, (10)-Al tube, (1
1)-Flange, (12)-Brazed part, (12a)-Connecting surface, (13)
--Fastening part, (13a)-Screw hole (14)-Mating member, (15)-
Bolt, (M 1 )-A7N01 material, (M 2 )-A3003 material.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 目木 利教 山口県下関市長府港町14番地１号 株式会 社神戸製鋼所長府製造所内 (72)発明者 中島 計 山口県下関市長府港町14番地１号 株式会 社神戸製鋼所長府製造所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshinori Miki 14-1 Minato-cho, Chofu, Shimonoseki City, Yamaguchi Prefecture Inside the Chofu Works, Kobe Steel Works (72) Inventor Nakajima 14-cho, Chofu, Shimonoseki, Yamaguchi Prefecture No. 1 Stock Company Kobe Steel Works Chofu Factory
Claims (1)
を複合し、アルミニウム管にロウ付けされる部位と相手
側部材に締結される部位との材質が異なる構成とされた
アルミニウム管用複合フランジ部材の製造方法におい
て、前記２種の内の一方のアルミニウム合金材からなる
筒状体の中空部に他方のアルミニウム合金材からなる柱
状体を挿入充填して中実２層構成のビレットを形成し、
このビレットを加熱して、製品フランジの平面形状に対
応する断面形状の複数の型孔を同心円上に等間隔かつ軸
対称に設けたダイスを用いて押出しを行い、それぞれが
製品フランジの平面形状に対応する断面形状を有し、か
つ断面方向で前記２種のアルミニウム合金材が圧接一体
化された複数の複合素材を同時に成形し、次いでこの複
合素材を製品フランジの厚さに対応する長さに切断して
個別の複合フランジ部材とすることを特徴とするアルミ
ニウム管用複合フランジ部材の製造方法。1. A composite flange member for an aluminum pipe, wherein two kinds of aluminum alloy materials are compounded by extrusion, and a material to be brazed to the aluminum tube and a material to be fastened to a mating member are made of different materials. In the method, a columnar body made of the other aluminum alloy material is inserted and filled into the hollow portion of the tubular body made of one of the two types of aluminum alloy material to form a solid two-layered billet,
This billet is heated and extruded using a die in which a plurality of mold holes having a cross-sectional shape corresponding to the flat shape of the product flange are provided on a concentric circle at equal intervals and axisymmetrically, and each has a flat shape of the product flange. Simultaneously molding a plurality of composite materials having corresponding cross-sectional shapes and press-bonding the two types of aluminum alloy materials in the cross-sectional direction, and then forming the composite materials into a length corresponding to the thickness of the product flange. A method for manufacturing a composite flange member for an aluminum pipe, which comprises cutting the composite flange member into individual composite flange members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8085164A JPH09271833A (en) | 1996-04-08 | 1996-04-08 | Manufacture of combined flange member of aluminum tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8085164A JPH09271833A (en) | 1996-04-08 | 1996-04-08 | Manufacture of combined flange member of aluminum tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09271833A true JPH09271833A (en) | 1997-10-21 |
Family
ID=13851030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8085164A Withdrawn JPH09271833A (en) | 1996-04-08 | 1996-04-08 | Manufacture of combined flange member of aluminum tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09271833A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007177683A (en) * | 2005-12-27 | 2007-07-12 | Usui Kokusai Sangyo Kaisha Ltd | Fuel injection pipe and method for manufacturing same |
| JP2009197269A (en) * | 2008-02-20 | 2009-09-03 | Kobe Steel Ltd | Composite extruded material of aluminum alloy for weld structure |
| CN113333495A (en) * | 2021-06-07 | 2021-09-03 | 哈尔滨理工大学 | Extrusion die and molding method for multi-size-thickness magnesium-aluminum composite plate strip |
-
1996
- 1996-04-08 JP JP8085164A patent/JPH09271833A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007177683A (en) * | 2005-12-27 | 2007-07-12 | Usui Kokusai Sangyo Kaisha Ltd | Fuel injection pipe and method for manufacturing same |
| JP4619286B2 (en) * | 2005-12-27 | 2011-01-26 | 臼井国際産業株式会社 | Fuel injection pipe and manufacturing method thereof |
| JP2009197269A (en) * | 2008-02-20 | 2009-09-03 | Kobe Steel Ltd | Composite extruded material of aluminum alloy for weld structure |
| CN113333495A (en) * | 2021-06-07 | 2021-09-03 | 哈尔滨理工大学 | Extrusion die and molding method for multi-size-thickness magnesium-aluminum composite plate strip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7658419B2 (en) | Fitting and method for manufacturing a fitting | |
| US4795078A (en) | Method for producing a clad steel pipe | |
| US3604102A (en) | Process for effecting metallurgical joints between two different metals and the products obtained thereby | |
| CN101484266B (en) | Friction welded part, suspension rod having the friction welded part, and joining method | |
| US6050301A (en) | Al alloy composite tube for refrigerant passages and method for producing the same | |
| US6260401B1 (en) | Method of molding high expansion pipe and the high expansion pipe | |
| US4915537A (en) | Compound joint and method for its production | |
| JPH09271833A (en) | Manufacture of combined flange member of aluminum tube | |
| JP6942186B2 (en) | Connection pipe and its manufacturing method | |
| US6401509B1 (en) | Method for producing a hollow body made of metal | |
| US5309748A (en) | Metal extrusion | |
| US5881595A (en) | Method of manufacturing tubular member having integral exterior protrusions | |
| JPH032565B2 (en) | ||
| EA029501B1 (en) | Vessel made of non-heat-hardenable alloy and method for making the same | |
| US3849869A (en) | Method for producing bimetallic and polymetallic bodies wherein the metals are joined together by metallurgical bond | |
| JPH04315524A (en) | Member for bonding together copper material and aluminum material and manufacture thereof | |
| JPH0313933B2 (en) | ||
| US3937385A (en) | Method of manufacturing compound billets for hydrostatic extrusion | |
| JPH029544B2 (en) | ||
| JPS613614A (en) | Manufacture of shape memory alloy | |
| RU2791931C1 (en) | METHOD FOR MANUFACTURING BIMETALLIC PIPES FROM TWO-PHASE (α+β)-TITANIUM AND WROUGHT ALUMINUM ALLOYS | |
| JPS58103920A (en) | Manufacture of metallic double pipe | |
| JP2635769B2 (en) | Manufacturing method of seamless aluminum clad tube | |
| JPH0647179B2 (en) | Method for manufacturing dissimilar metal pipe fittings | |
| JPH0566210B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030701 |