DE355286C - Process for the production of pipe elbows - Google Patents

Process for the production of pipe elbows

Info

Publication number
DE355286C
DE355286C DER45559D DER0045559D DE355286C DE 355286 C DE355286 C DE 355286C DE R45559 D DER45559 D DE R45559D DE R0045559 D DER0045559 D DE R0045559D DE 355286 C DE355286 C DE 355286C
Authority
DE
Germany
Prior art keywords
circular
production
rings
pipe elbows
sheet 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.)
Expired
Application number
DER45559D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RHEINISCHE SCHWEISSWERKE SIEGL
Original Assignee
RHEINISCHE SCHWEISSWERKE SIEGL
Publication date
Priority to DER45559D priority Critical patent/DE355286C/en
Application granted granted Critical
Publication of DE355286C publication Critical patent/DE355286C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/28Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/286Making tube fittings for connecting pipes, e.g. U-pieces starting from sheet material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Description

Verfahren zur Herstellung von Rohrkrümmern. Die technischen Nachteile, welche mit der bisherigen Herstellung eiserner Krümmer verbunden sind, ließen es längst als wünschenswert erscheinen, das Herst61fungsverfahren 'zu verbessern.Process for the production of pipe elbows. The technical disadvantages which are connected with the previous production of iron elbows, left it have long since seemed desirable to improve the manufacturing process.

Gegenstand der Erfindung ist ein Verfahren zur Herstellung eiserner Krümmer, welches sich von allen bisherigen Verfahren dadurch unterscheidet, daß als Ausgang swerkstück nicht fertige gerade Rohrstücke, sondern Blechscheiben verwendet werden, und daß das Arbeitsverfahren nicht in einer Biege-, sondern in einer Drück- und Schweißarbeit besteht. Die Arbeit geht derart vor sich, daß kreisförmige Blechscheiben mit einem kreisföriinigen Ausschnitt zu rinnenföranigen Kreisringen gepreßt werden, welche paarweise zu Rohrringen vereinigt und durch radiale Schnitte in Krümmerstücke zerlegt werden.The invention relates to a method for producing iron Elbow, which differs from all previous methods in that not finished straight pipe pieces, but sheet metal disks are used as the starting workpiece and that the working process is not a bending but a pushing and welding work. The work goes on in such a way that circular sheet metal disks are pressed with a circular cutout to form grooved circular rings, which are combined in pairs to form pipe rings and by radial cuts in elbow pieces be disassembled.

Das neue Verfahren bietet u. a. die wesentlichen Vorteile, daß die gleichmäßige Wandstärke der Bleichscheibe auch beim fertigen Krümmer in seiner ganzen Länge erhalten bleibt, und daß es die gleichzeitige Erzeugung von vier bzw. zwei Krümmern gleichen Halbmessers in einem Arbeitsgange ermöglicht. In der Zeichnung ste@ltlt dar: Abb. r das. Ausgangswerkstück, Abb. a die PreBunatrize nebst Stempel, Abb. 3 zwei Kreisringe, die zu Rohrringen vereinigt werden sollen.The new method offers, inter alia. the main advantages that the Uniform wall thickness of the bleaching disc even in the finished manifold in its entirety Length is preserved, and that there is the simultaneous generation of four or two Allows bends of the same radius in one operation. In the drawing ste @ ltlt: Fig. r the. starting workpiece, Fig. a the PreBunatrize with punch, Fig. 3 two circular rings that are to be combined to form pipe rings.

Als Ausgangswerkstück dient eine in der Mitte kreisförmig ausgeschnittene Blechscheibe a. Zu ihrer Bearbeitung dient eine Presse, deren Matrize eine kreisförmige Rinne b und deren Stempel, einen entsprechenden Vollring c von halbkreisförmigem Ou:erschnitt bildet, so daß aus der Blechscheibe ein rinnenförmiger Kreisring d entsteht.The starting workpiece is a circular cut out in the middle Sheet metal washer a. A press with a circular die is used to process it Channel b and its stamp, a corresponding full ring c of semicircular Ou: section forms so that a channel-shaped circular ring d from the sheet metal disc arises.

Es werden dann je zwei solcher Kreisringe d, d' durch Schweißung ihrer inneren und äußeren Längskanten zu einem geschlossen-en Rohrringe vereinigt, der hierauf durch radiale Schnitte in zwei oder vier Krümmerstücke zerlegt wird.Two such circular rings d, d ' are then combined by welding their inner and outer longitudinal edges to form a closed tubular ring, which is then divided into two or four elbow pieces by radial cuts.

Es liegt in der Natur der Erfindung, daß Stempel und: Matrize anstatt der Form eines geschlossenen Kreises auch die eines Kreisabschnittes haben können, und daß dieser Form entsprechend auch der Umfang der ausgeschnittenen Blechscheibe verkleinert sein kann, so daß durch das Drückverfahren anstatt Kreisringe nur rinnenförmige Kreisr ringabschnitte, deren Länge derjenigen des zu erzeugenden Krümmers entspricht, erzeugt werden.It is in the nature of the invention that punch and: die instead of the shape of a closed circle can also have that of a segment of a circle, and that this shape also corresponds to the circumference of the sheet metal disc cut out can be reduced in size, so that the spinning process only trough-shaped instead of circular rings Circular ring sections, the length of which corresponds to that of the bend to be produced, be generated.

Das Wesen dar Erfindung besteht darin, daß als Ausgangswerkstück der Krüummererzeugung Mechscheiben dienen., deren äußerer Rand durch eine Kreislinie begrenzt wird, und welche entweder mit eineue kreisförmigen Ausschnitt in der Mitte versehen sind oder welche durch zwei gegenüberliegende Kreisbogenlinien begrenzt werden.The essence of the invention is that the starting workpiece Mech disks are used to create bends, the outer edge of which is defined by a circular line is limited, and which either with a new circular cutout in the middle are provided or which are limited by two opposing circular arc lines will.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Rohrkrümmern, dadurch gekennzeichnet, daß kreisförmige Blechscheiben mit einem kreigförmigen Ausschnitt zu rinnenförmigen Kreisringen gepreßt werden, welche paarweise zu Rohrringen vereinigt und -durch radiale Schnitte in Krümmerstücke zerlegt werden. Claim: Method for the production of pipe elbows, characterized in that circular sheet metal disks with a circular cutout are pressed into channel-shaped circular rings, which are combined in pairs to form pipe rings and divided into elbow pieces by radial cuts.
DER45559D Process for the production of pipe elbows Expired DE355286C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER45559D DE355286C (en) Process for the production of pipe elbows

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER45559D DE355286C (en) Process for the production of pipe elbows

Publications (1)

Publication Number Publication Date
DE355286C true DE355286C (en) 1922-06-24

Family

ID=7407688

Family Applications (1)

Application Number Title Priority Date Filing Date
DER45559D Expired DE355286C (en) Process for the production of pipe elbows

Country Status (1)

Country Link
DE (1) DE355286C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579806A (en) * 1968-06-19 1971-05-25 France Armed Forces Method of producing toroidal bodies from hard, brittle steels
FR2166158A1 (en) * 1971-12-29 1973-08-10 Combustion Eng
US3802245A (en) * 1971-12-29 1974-04-09 Cumbustion Eng Inc Method and apparatus for cold forming elbows from tori
EP0510759A1 (en) * 1991-04-26 1992-10-28 AP&T Automation & Tooling AB A method of producing a thin-walled pipe bend

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579806A (en) * 1968-06-19 1971-05-25 France Armed Forces Method of producing toroidal bodies from hard, brittle steels
FR2166158A1 (en) * 1971-12-29 1973-08-10 Combustion Eng
US3802245A (en) * 1971-12-29 1974-04-09 Cumbustion Eng Inc Method and apparatus for cold forming elbows from tori
EP0510759A1 (en) * 1991-04-26 1992-10-28 AP&T Automation & Tooling AB A method of producing a thin-walled pipe bend

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