JPH0428437A - Device for bending metal plate for heat transfer tube of heat exchanger - Google Patents
Device for bending metal plate for heat transfer tube of heat exchangerInfo
- Publication number
- JPH0428437A JPH0428437A JP13045790A JP13045790A JPH0428437A JP H0428437 A JPH0428437 A JP H0428437A JP 13045790 A JP13045790 A JP 13045790A JP 13045790 A JP13045790 A JP 13045790A JP H0428437 A JPH0428437 A JP H0428437A
- Authority
- JP
- Japan
- Prior art keywords
- bending
- heat exchanger
- spring
- drive shaft
- workpiece
- 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.)
- Granted
Links
- 238000005452 bending Methods 0.000 title claims abstract description 69
- 239000002184 metal Substances 0.000 title 1
- 239000000463 material Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、１枚の板材を折り返して形成される熱交換器
の伝熱管用板材の曲げ加工装置に係り、詳しくは、例え
ば、ラジェータ、コンデンサ、エバポレータ等の熱交換
器に使用される、伝熱管の製造装置に於ける曲げ加工装
置の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bending device for a plate material for a heat exchanger tube of a heat exchanger, which is formed by folding a single plate material. This invention relates to an improvement of a bending device in a manufacturing device for heat transfer tubes used in heat exchangers such as condensers and evaporators.
従来、この種の熱交換器用伝熱管としては、例えば、実
開昭５４−２９４６４号公報等に開示されるものが知ら
れている。Conventionally, as this type of heat exchanger tube for a heat exchanger, one disclosed in, for example, Japanese Utility Model Application Publication No. 54-29464 is known.
これを第７図に基づいて説明する。熱交換器用伝熱管１
は、１枚の板材を所定の成形手段によって内部に空間部
３が形成できるようにされると共に、その両端部２，２
が重合するように壁面の一部を境にして折り曲げ加工さ
れた後、重合する両端部２．２をロー付けすることによ
って形成されている。This will be explained based on FIG. Heat exchanger tube 1
In this case, a space 3 is formed inside a single plate by a predetermined forming means, and both ends 2, 2 of the plate are formed.
It is formed by bending a part of the wall surface as a border so that the two ends overlap, and then brazing the overlapping ends 2.2.
この熱交換器用伝熱管１ば、通常のラジェータ。This heat exchanger tube 1 is a normal radiator.
コンデンザ、エバポレータ等の熱交換器に用いられる伝
熱管と同様に、タンク又はヘッダに設けた嵌合孔内にそ
の端部を嵌入し、水密構造とされるように構成されてい
る。Similar to heat exchanger tubes used in heat exchangers such as condensers and evaporators, the end portions of these tubes are fitted into fitting holes provided in tanks or headers to create a watertight structure.
斯くして構成された熱交換器用伝熱管１ば、通常の丸管
や偏平管等の伝熱管番：′、比して、その放熱面積が大
きいという利点があると共に、通常の丸管や偏平管等の
伝熱管に比して、その製造が安価であるという利点があ
る。The heat exchanger tube 1 for a heat exchanger constructed in this way has the advantage of a larger heat radiation area compared to ordinary round tubes, flat tubes, etc. It has the advantage that it is cheaper to manufacture than heat exchanger tubes such as tubes.
処が、この熱交換器用伝熱ｖ１は、板材を折り曲げるこ
とによって、その両端部２．２を接合するものであるか
ら、正確に折り返し部４の位置を出さないと、例えば、
第８図に示す如（、両端部２．２の接合部分が小さくな
り、その部位から冷媒が洩れる震がある。又、タンク又
はヘッダに設けた嵌合孔に嵌入することが困難となる。However, since this heat exchanger heat transfer v1 is to join both ends 2.2 of a plate material by bending it, if the position of the folded part 4 is not accurately determined, for example,
As shown in FIG. 8, the joint portions of both end portions 2.2 become smaller, causing the refrigerant to leak from that portion.Furthermore, it becomes difficult to fit into the fitting holes provided in the tank or header.
更に、若し、第８図の如き形状のものを、タンク又はヘ
ッダに嵌入させるには、嵌合孔を大きくせざるを得す、
隙間が大きなものとなり、その部位をローによって埋め
ることが困難となる虞がある。その結果、該嵌合部から
冷媒が洩れる直がある。Furthermore, in order to fit something with the shape shown in Figure 8 into a tank or header, the fitting hole must be made larger.
There is a possibility that the gap will become large and it will be difficult to fill the gap with the row. As a result, the refrigerant tends to leak from the fitting portion.
そこで、本発明者等は、先に、中央部に突条を設け、壁
面に所定の凹部を設けた成形ロールと、中央部に凹条を
設け、壁面に所定の突起を設けた成形ロールとを備えた
成形機をによって、長尺の板材に複数の凹凸を形成する
と共に該板材の長手方向中央部に折り返し２部と成る突
条を形成する熱交換器用伝熱管の製造方法を出願した（
特開平１−２９５６４１号）。Therefore, the present inventors first developed a forming roll with a protrusion in the center and a predetermined recess on the wall surface, and a forming roll with a protrusion in the center and a predetermined protrusion on the wall surface. We have filed an application for a method of manufacturing a heat exchanger tube for a heat exchanger, in which a plurality of irregularities are formed on a long plate using a forming machine equipped with the above-mentioned molding machine.
JP-A No. 1-295641).
この先願に係る熱交換器用伝熱管の製造方法によれば、
各一対の成形ロールの中央部に突条と凹条とが設けられ
ているので、成形された板材の中央部に折り返し部が正
確に形成され、上述した如き不具合が解消できる。According to the method for manufacturing a heat exchanger tube for a heat exchanger according to this prior application,
Since the protrusions and grooves are provided at the center of each pair of forming rolls, the folded portion is accurately formed at the center of the formed plate material, and the above-mentioned problems can be solved.
処が、上記先願に係る熱交換器用伝熱管の製造方法では
、各成形ロールを、夫々駆動軸にキー材を介して連結さ
れているため、全ての成形ロールの回転速度と荷重とを
一定としている。その結果、折り曲げ加工時の各段階で
の荷重が異なるにも拘わらず、常に一定の荷重が成形ロ
ールに掛かることとなり、ワークに引張力が作用し、ワ
ークの伸び１反り９曲がりが発生する戊がある。However, in the method for manufacturing heat exchanger tubes according to the above-mentioned prior application, each forming roll is connected to the drive shaft through a key material, so the rotational speed and load of all forming rolls are kept constant. It is said that As a result, even though the load at each stage during the bending process is different, a constant load is always applied to the forming roll, and a tensile force is applied to the workpiece, causing the workpiece to elongate, warp, and bend. There is.
本発明は斯かる従来の問題点を解決するために為された
もので、その目的は、ワーク及び成形ロールに所定値以
上の負荷が掛かると、成形ロールを自由回転状態として
ワークに引張力が掛からないようにした熱交換器の伝熱
管用板材の曲げ加工装置を提供することにある。The present invention has been made to solve such conventional problems, and its purpose is to set the forming roll in a free rotation state and apply tensile force to the workpiece when a load of more than a predetermined value is applied to the workpiece and the forming roll. To provide a bending device for a plate material for a heat exchanger tube of a heat exchanger, which prevents bending.
本発明に係る熱交換器の伝熱管用板材の曲げ加工装置は
、駆動軸を介して回転する複数の曲げローラを設け、ワ
ークを徐々に折り曲げ加工する熱交換器の伝熱管用板材
の曲げ加工装置に於て、各曲げローラと駆動軸との間に
、摩擦板とスプリングとを介在し、このスプリングによ
って、曲げローラを駆動軸に所定の荷重で押圧するよう
に構成したものである。A bending device for a plate material for a heat exchanger tube of a heat exchanger according to the present invention is provided with a plurality of bending rollers rotating through a drive shaft, and bends a workpiece gradually. In this device, a friction plate and a spring are interposed between each bending roller and the drive shaft, and the spring presses the bending roller against the drive shaft with a predetermined load.
本発明によれば、スプリングが摩擦板を押圧して、これ
によって、曲げローラが駆動軸に一定荷重で押し付けら
れる。従って、駆動軸が回転すると、それに伴って曲げ
ローラが回転し、各曲げローラ間に挿入されるワークを
所定の角度に曲げ加工する。この際、ワーク及び曲げロ
ーラに所定値以上の負荷が加わると、摩擦板がスリップ
して、曲げローラをフリー状態とすることができる。According to the invention, the spring presses against the friction plate, thereby pressing the bending roller against the drive shaft with a constant load. Therefore, when the drive shaft rotates, the bending rollers rotate accordingly, and the workpiece inserted between the bending rollers is bent at a predetermined angle. At this time, if a load of a predetermined value or more is applied to the workpiece and the bending roller, the friction plate slips and the bending roller can be brought into a free state.
以下、本発明の一実施例を図面に基づいて説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図は本発明の一実施例に係る熱交換器の伝熱管用板
材の曲げ加工装置を示すもので、１０は一対の曲げロー
ラを現す。FIG. 1 shows an apparatus for bending plates for heat exchanger tubes of a heat exchanger according to an embodiment of the present invention, and 10 indicates a pair of bending rollers.
この一対の曲げローラ１０は、中央部に突条１１を有す
る曲げローラＩＯＡと、中央部に凹条１２を有する曲げ
ローラＩＯＢとによって構成されている。The pair of bending rollers 10 includes a bending roller IOA having a protrusion 11 in the center and a bending roller IOB having a groove 12 in the center.
そして、この一対の曲げローラ１０は、ワークＷの折り
曲げ加工数に応じて、例えば、第２図及び第３図に示す
如く、７組設けられている。この設置数は、ワークＷに
よって適宜任意に選択することができる。For example, seven pairs of bending rollers 10 are provided, as shown in FIGS. 2 and 3, depending on the number of bending processes of the workpiece W. The number of installations can be arbitrarily selected depending on the workpiece W.
又、各曲げローラＩＯＡとＩＯＢに設けた突条１１と凹
条１２とは、第２図及び第４図に示す如く、ワークＷの
折り曲げ角度に応じて順次鋭角と成るように形成されて
いる。Furthermore, the protrusions 11 and grooves 12 provided on each of the bending rollers IOA and IOB are formed to form an acute angle in sequence according to the bending angle of the workpiece W, as shown in FIGS. 2 and 4. .
更に、各曲げローラＩＯＡとＩＯＢは、駆動軸２０に回
転自在に取り付けられている。そして、各曲げローラＩ
ＯＡとＩＯＢは、ストッパ１３゜１３を有し、駆動軸２
０に設けた段部２１に当接するようになっている。Further, each bending roller IOA and IOB is rotatably attached to a drive shaft 20. And each bending roller I
OA and IOB have stoppers 13°13, and drive shaft 2
It comes into contact with a step 21 provided at 0.
更に又、各曲げローラＩＯＡとＩＯＢに於けるストッパ
１３が設けられている端面側には、スプリング受け１４
が設けられている。Furthermore, a spring receiver 14 is provided on the end surface side of each bending roller IOA and IOB where the stopper 13 is provided.
is provided.
各スプリング受け１４には、所定の値の押圧力を有する
スプリング４０が当接している。このスプリング４０は
、駆動軸２０の外周を覆うように配されている。A spring 40 having a predetermined pressing force is in contact with each spring receiver 14 . This spring 40 is arranged so as to cover the outer periphery of the drive shaft 20.
このスプリング４０の他端側には、摩擦板４３が設けら
れている。この摩擦板４３は、駆動軸２０を覆う短管４
４の先端部に設けられている。この短管４４は、軸受４
５を介して基台に取り付けられている。A friction plate 43 is provided on the other end side of the spring 40. This friction plate 43 is a short tube 4 that covers the drive shaft 20.
It is provided at the tip of 4. This short pipe 44 is connected to the bearing 4
It is attached to the base via 5.
上記駆動軸２０は、モータ等の駆動源と連結するプーリ
又はスプロケット２２を取り付け、基台に軸受２３，２
４を介して取り付けられている。The drive shaft 20 is equipped with a pulley or sprocket 22 connected to a drive source such as a motor, and bearings 23 and 2 are attached to the base.
It is attached via 4.
そして、各駆動軸２０は、チェーン又はベルト等の駆動
伝達体２５を介して連結している。Each drive shaft 20 is connected via a drive transmission body 25 such as a chain or a belt.
次に、斯（して構成された本実施例の作用を説明する。Next, the operation of this embodiment configured in this manner will be explained.
先ず、駆動源を操作して、各駆動軸２０を回転し、これ
によって、各曲げローラｌ０ＡＩ、１０Ｂ１．１０Ａ２
．１０Ｂ２、・・・１０Ａ７．１０Ｂ７が同時に回転す
る。この状態で、第２図に於ける左側から、平坦でその
壁面に所定の凹凸部が形成されているワークＷが供給さ
れて来ると、ワークＷは、第２図、第３図及び第５図に
示す如く、第１ステツプ■から第７ステツプ■に向かっ
て、順次その曲げ角度を太き（し乍ら、曲げ加工が施さ
れて行く。First, the drive source is operated to rotate each drive shaft 20, thereby rotating each bending roller l0AI, 10B1, 10A2.
．． 10B2, . . . 10A7, and 10B7 rotate at the same time. In this state, when a flat workpiece W having a predetermined unevenness formed on its wall surface is supplied from the left side in FIG. 2, the workpiece W is supplied from the left side in FIG. As shown in the figure, the bending angle is gradually increased from the first step (2) to the seventh step (2), while the bending process is performed.
斯くして、第７ステツプ■を経たワークＷに、第５図の
如く、別の手段（例えば、人手によって両端部５１．５
１を当接するような力を掛ける等の手段）で■の角度ま
で折り曲げると、第６図に示す如く、目的とする伝熱管
用素体５０を得ることができる。As shown in FIG. 5, the workpiece W that has passed through the seventh step
By bending the heat exchanger tube to the angle (2) using means such as applying a force such that the heat exchanger tube 1 is brought into contact with the heat exchanger tube 1, the desired element body 50 for a heat exchanger tube can be obtained as shown in FIG.
上記曲げ加工時に、各曲げローラｌ０ＡＩ、１０ＢＩ、
１０Ａ２．１ＯＢ２、・・・１０Ａ７゜１０Ｂ７の何れ
かに、スプリング４０の押圧力以上の荷重が掛かると、
その曲げローラは、駆動軸２０からの駆動力を受けるこ
とができなくなり、フリーロール状態となる。従って、
ワークＷに設定値以上の引張力が掛からない。During the above bending process, each bending roller l0AI, 10BI,
If a load greater than the pressing force of the spring 40 is applied to any of 10A2.1OB2,...10A7°10B7,
The bending roller is no longer able to receive the driving force from the drive shaft 20 and becomes in a free roll state. Therefore,
A tensile force exceeding the set value is not applied to the workpiece W.
以上の如く、本実施例によれば、各曲げローラ１０ＡＩ
、ｌ０ＢＩ・・・１０Ａ７．１０Ｂ７と駆動軸２０との
間に、摩擦板４３とスプリング４０とを介在し、このス
プリング４０によって、曲げローラｌ０Ａ１．ｌ０ＢＩ
・・・１０Ａ７．１０Ｂ７を駆動軸２０に所定の荷重で
押圧するように構成したので、曲げローラｌ０ＡＩ、ｌ
０ＢＩ・・・１０Ａ７．１０Ｂ７は、スプリング４０に
よって、駆動軸２０に一定荷重で押圧され、ワークＷ及
び曲げローラｌ０ＡＩ、ｌ０ＢＩ・・・１０Ａ７．１０
Ｂ７に所定値以上の負荷が掛かると、摩擦板４３がスリ
ップして、駆動軸２０の回転力を曲げローラｌ０ＡＩ、
ｌ０ＢＩ・・・１０Ａ７゜１０Ｂ７に伝達しなくなり、
そのワークＷに無理な曲げ加工を施すことがない。その
結果、ワークＷには、引張力が掛からず、反り５曲がり
を生ずることがない。As described above, according to this embodiment, each bending roller 10AI
A friction plate 43 and a spring 40 are interposed between the drive shaft 20 and the bending roller l0A1. l0BI
...10A7 and 10B7 are configured to be pressed against the drive shaft 20 with a predetermined load, so that the bending rollers l0AI, l0
0BI...10A7.10B7 is pressed against the drive shaft 20 with a constant load by the spring 40, and the workpiece W and the bending rollers l0AI, l0BI...10A7.10
When a load of more than a predetermined value is applied to B7, the friction plate 43 slips and the rotational force of the drive shaft 20 is transferred to the bending rollers l0AI,
l0BI...10A7゜No longer transmits to 10B7,
The workpiece W is not subjected to forced bending. As a result, no tensile force is applied to the workpiece W, and no warping occurs.
本発明者の実験によれば、曲げローラとして、スリップ
ロールを用い、ワークＷの材料として、ロー材をクラッ
ドしたアルミニウム材Ｈ１４（４３４３（１０χ）−３
００３（８０χ）−４３４３（１０ｚ））、板厚０．４
ｔを用い、スプリングの押圧力５ｋｇとした場合に、得
られたワークＷに伸び１反り１曲がりのないことが確認
できた。According to the inventor's experiments, a slip roll was used as the bending roller, and the material of the workpiece W was an aluminum material H14 (4343(10χ)-3) clad with brazing material.
003(80χ)-4343(10z)), plate thickness 0.4
When using t and a spring pressing force of 5 kg, it was confirmed that the obtained workpiece W had no elongation, no warping, and no bending.
尚、上記実施例では、壁面に多数の凹凸部を設けた伝熱
管について説明したが、壁面に凹凸部を設けていない伝
熱管にも適用できるものである。In the above embodiment, a heat exchanger tube having a large number of uneven portions on the wall surface has been described, but the present invention can also be applied to a heat exchanger tube having no uneven portions on the wall surface.
以上の如く、本発明は、駆動軸を介Ｌ７て回転する複数
の曲げローラを設け、ワークを徐々に折り曲げ加工する
熱交換器の伝熱管用板材の曲げ加コニ装置に於て、各曲
げローラと駆動軸との間に、摩擦板とスプリングとを介
在し、このスプリングによゲＣ１曲げローラを駆動軸に
所定の荷重で押圧するように構成したので、加工時にワ
ークに過荷重が掛かると、ｉｓ板がスリップして、駆動
軸からの伝達力を曲げローラに伝達しないようになるか
ら、加工時に於けるワークの伸び２反り２曲がりが防止
でき、精度の良い製品を得ることができる。As described above, the present invention provides a plurality of bending rollers that rotate via the drive shaft L7, and each bending roller in a bending device for a plate material for a heat transfer tube of a heat exchanger that gradually bends a workpiece. A friction plate and a spring are interposed between the drive shaft and the drive shaft, and the spring presses the C1 bending roller against the drive shaft with a predetermined load. Therefore, if an overload is applied to the workpiece during machining, Since the IS plate slips and prevents the transmission force from the drive shaft from being transmitted to the bending roller, elongation, warping, and bending of the workpiece during machining can be prevented, and a highly accurate product can be obtained.
第１図は本発明の一実施例に係る熱交換器の伝熱管用板
材の曲げ加工装置の主要部を示す断面図である。
第２図は第１図に於ける曲げローラの配置関係を示す側
面図である。
第３図は第２図に於ける曲げローうによって曲げ加工さ
れるワークの状態を示す説明図である。
第４図は第２図に於ける上方の曲げローラを省略して下
方の曲げローラとワークとの関係を示す平面図である。
第５図は本発明の一実施例によるワークの曲げ加工状態
を示す説明図である。
第６図は本発明の一実施例によって得られた熱交換器の
伝熱管用素体を示す断面図である。
第７図及び第８図は従来方式によってえられた熱交換器
の伝熱管用素体を示す断面図である。
〔主要な部分の符号の説明〕
１０、ＩＯＡ、ＩＯＢ・・・曲げローラ１１・・・突条
１２・・・凹条
２０・・・駆動軸
４０・・・スプリング
４３・・・摩擦板
Ｗ・・・ワーク
５０・・・伝熱管用素体。
糠FIG. 1 is a sectional view showing the main parts of a bending apparatus for heat exchanger tube plates of a heat exchanger according to an embodiment of the present invention. FIG. 2 is a side view showing the arrangement of the bending rollers in FIG. 1. FIG. 3 is an explanatory view showing the state of the work being bent by the bending row in FIG. 2. FIG. 4 is a plan view showing the relationship between the lower bending roller and the workpiece, with the upper bending roller in FIG. 2 omitted. FIG. 5 is an explanatory diagram showing a state of bending a workpiece according to an embodiment of the present invention. FIG. 6 is a sectional view showing a heat exchanger tube element body of a heat exchanger obtained according to an embodiment of the present invention. FIG. 7 and FIG. 8 are cross-sectional views showing a heat exchanger tube element body of a heat exchanger obtained by a conventional method. [Explanation of symbols of main parts] 10, IOA, IOB...Bending roller 11...Protrusion 12...Concave line 20...Drive shaft 40...Spring 43...Friction plate W. ...Work 50...Element body for heat exchanger tube. Bran
Claims (1)
、ワークを徐々に折り曲げ加工する熱交換器の伝熱管用
板材の曲げ加工装置に於て、各曲げローラと駆動軸との
間に、摩擦板とスプリングとを介在し、このスプリング
によって、曲げローラを駆動軸に所定の荷重で押圧する
ように構成したことを特徴とする熱交換器の伝熱管用板
材の曲げ加工装置。(1) In a bending device for heat exchanger tube plates of a heat exchanger, which is equipped with a plurality of bending rollers that rotate via a drive shaft and gradually bends a workpiece, there is a 1. A bending device for a plate material for a heat exchanger tube of a heat exchanger, characterized in that a friction plate and a spring are interposed, and the spring presses a bending roller against a drive shaft with a predetermined load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13045790A JP2826170B2 (en) | 1990-05-21 | 1990-05-21 | Bending equipment for plate materials for heat exchanger tubes of heat exchangers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13045790A JP2826170B2 (en) | 1990-05-21 | 1990-05-21 | Bending equipment for plate materials for heat exchanger tubes of heat exchangers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0428437A true JPH0428437A (en) | 1992-01-31 |
| JP2826170B2 JP2826170B2 (en) | 1998-11-18 |
Family
ID=15034698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13045790A Expired - Fee Related JP2826170B2 (en) | 1990-05-21 | 1990-05-21 | Bending equipment for plate materials for heat exchanger tubes of heat exchangers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2826170B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6423423B2 (en) * | 1998-05-06 | 2002-07-23 | Calsonic Kansei Corporation | Formed strip and roll forming |
| US6928847B2 (en) * | 1999-10-08 | 2005-08-16 | Calsonic Kansei Corporation | Roll forming system for forming flanges in strip material |
| CN101972798A (en) * | 2010-09-06 | 2011-02-16 | 北方工业大学 | Roll center heating type roll bending forming method and device thereof |
-
1990
- 1990-05-21 JP JP13045790A patent/JP2826170B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6423423B2 (en) * | 1998-05-06 | 2002-07-23 | Calsonic Kansei Corporation | Formed strip and roll forming |
| US6539628B2 (en) | 1998-05-06 | 2003-04-01 | Calsonic Kansei Corporation | Formed strip and roll forming |
| US6928847B2 (en) * | 1999-10-08 | 2005-08-16 | Calsonic Kansei Corporation | Roll forming system for forming flanges in strip material |
| CN101972798A (en) * | 2010-09-06 | 2011-02-16 | 北方工业大学 | Roll center heating type roll bending forming method and device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2826170B2 (en) | 1998-11-18 |
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