DE471645C - Process for the production of pipe bends of wall thickness as uniform as possible - Google Patents

Process for the production of pipe bends of wall thickness as uniform as possible

Info

Publication number
DE471645C
DE471645C DESCH78251D DESC078251D DE471645C DE 471645 C DE471645 C DE 471645C DE SCH78251 D DESCH78251 D DE SCH78251D DE SC078251 D DESC078251 D DE SC078251D DE 471645 C DE471645 C DE 471645C
Authority
DE
Germany
Prior art keywords
wall thickness
production
uniform
pipe bends
pipe
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
DESCH78251D
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.)
JAKOB SCHMITZ
Original Assignee
JAKOB SCHMITZ
Publication date
Priority to DESCH78251D priority Critical patent/DE471645C/en
Application granted granted Critical
Publication of DE471645C publication Critical patent/DE471645C/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Description

Verfahren zur Herstellung von Rohrbogen von möglichst gleichmäßiger Wandstärke Bei Rohrbogen, selbst bei solchen mit kleinen Kriümmungsradien, wird im allgemeinen verlangt, daß die Wandung im Querschnitt möglichst gleichmäßig stark ist, wie in Abb. i dargestellt.Process for the production of pipe bends of the most uniform possible Wall thickness For pipe bends, even for those with small radii of curvature, generally requires that the wall be as uniformly strong as possible in cross-section is as shown in Fig. i.

Zur Herstellung von Rohrbogen werden im allgemeinen Rohre mit gleichmäßig starker Wandung verwendet. Werden diese Rohre auf irgendeine Art und Weise zu Bogen verarbeitet, also gebogen, so ist es unausbleiblich, daß sich der Werkstoff an der Krümmungsaußenseite des Bogens streckt,. also dünner wird, und an der Krümmungsinneüs@eite staucht, also stärker wird. Eiar derartiger Bogen zeigt-eine ungleichmäßig starke? Wandung' nach Abb. z.For the production of pipe bends, pipes with uniformly are generally used thick wall used. Will these pipes bend in some way processed, i.e. bent, it is inevitable that the material adheres to the Curvature outside of the arch stretches. so becomes thinner, and on the curvature inner side compresses, so becomes stronger. A bow like this shows - an unevenly strong one? Wall 'according to Fig.

Um nun Rohrbogen. mit möglichst gleichmäßiger Wandstärke herzustellen, dient folgendes Verfahren: Es wird ein Rohr von ungleichmäßig starker Wandung verwendet, d. h. das ,gerade Rohr ist, wie in Abb.3 dargestellt, bei. a stärker als bei b. Wird min solches Rohr nun derart gebogen, da.ß d die Krümmungsaußenseite und b- dse Ik-,rümmungsinneweite bildet, so streckt siech der Werkstoff an der Krümmungsaußenseite, also bei b, dagegen staucht er sich an der Krünmmingsinnenseita, also bei b; so - daß ein Ausgleich bezüglich der Ungleichmäßigkeit der Wandstärke stattfindet und dadurch ein Rohrbogen mit möglichst gleichmäßiger Wandung ,entsteht, wie in Abb.3 in gestrichelten Linien dargestellt. Das Rohr wird vor dem Biegen mit einer Füllung versehen, oder das Biegen erfolgt unter Anwendung .eines Doras o. dgl.To now pipe bends. The following procedure is used to produce the most uniform wall thickness possible: A tube with unevenly thick walls is used, ie the straight tube is, as shown in Fig. a stronger than with b. If such a tube is now bent in such a way that d forms the outside of the curvature and b-dse Ik-, the inside of the curvature, the material stretches on the outside of the bend, i.e. at b, on the other hand it compresses on the inside of the curvature, i.e. at b; so - that a compensation takes place with regard to the unevenness of the wall thickness and thus a pipe bend with as uniform a wall as possible is created, as shown in Fig. 3 in dashed lines. The tube is filled with a filling before bending, or bending is carried out using a Doras or the like.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstelliung vön Rohrbogen von möglichst Blei chmäßiger Wandstärke, dadurch gekennzeichnet, daß ein Rohr, welches auf feiner Sieite (bei a) entsprechend starkwandiger als auf der gegenüberliegenden Sielte (bei b) ist, verwendet und derart gebogen wird, daß der starkwandige Teil. die Kr>;mmungsau,ßenseite, der schwachwandige Teil die Krümrnungsinnensemte bildet. PATENT CLAIM: A process for the production of pipe bends with a wall thickness as possible from lead, characterized in that a pipe which is correspondingly thicker-walled on a fine Sieite (at a) than on the opposite Sielte (at b) is used and bent in such a way that the thick-walled one Part. the outside of the curve, the weak-walled part forms the inner curve of the curve.
DESCH78251D Process for the production of pipe bends of wall thickness as uniform as possible Expired DE471645C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH78251D DE471645C (en) Process for the production of pipe bends of wall thickness as uniform as possible

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH78251D DE471645C (en) Process for the production of pipe bends of wall thickness as uniform as possible

Publications (1)

Publication Number Publication Date
DE471645C true DE471645C (en) 1929-02-18

Family

ID=7441575

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH78251D Expired DE471645C (en) Process for the production of pipe bends of wall thickness as uniform as possible

Country Status (1)

Country Link
DE (1) DE471645C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE926483C (en) * 1950-09-22 1955-04-18 Andre Huet Process for the production of one or more connecting pieces on a straight or curved pipe and a bending machine for carrying out this process
DE1177908B (en) * 1955-04-19 1964-09-10 Andre Gresse Method for bending thick-walled metal pipes to a small radius
DE3124957A1 (en) * 1981-06-25 1983-01-13 Alpha-Pipes Gesellschaft für Rohrfertigung mbH, 4350 Recklinghausen METHOD FOR PRODUCING IN PARTICULAR MULTIPLE-CURVED PIPELINE PARTS AND PIPELINE PART MANUFACTURED BY THE METHOD
DE3247200A1 (en) * 1982-12-21 1984-07-05 Emil Wolff, Maschinenfabrik Und Eisengiesserei Gmbh, 4300 Essen Process and bending press for the bending of a straight pipe to form a pipe bend with connected straight legs
DE102006018688A1 (en) * 2006-04-13 2007-10-18 Visteon Global Technologies Inc., Van Buren Method for bending flat tubes for heat exchangers and curved flat tubes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE926483C (en) * 1950-09-22 1955-04-18 Andre Huet Process for the production of one or more connecting pieces on a straight or curved pipe and a bending machine for carrying out this process
DE1177908B (en) * 1955-04-19 1964-09-10 Andre Gresse Method for bending thick-walled metal pipes to a small radius
DE3124957A1 (en) * 1981-06-25 1983-01-13 Alpha-Pipes Gesellschaft für Rohrfertigung mbH, 4350 Recklinghausen METHOD FOR PRODUCING IN PARTICULAR MULTIPLE-CURVED PIPELINE PARTS AND PIPELINE PART MANUFACTURED BY THE METHOD
DE3247200A1 (en) * 1982-12-21 1984-07-05 Emil Wolff, Maschinenfabrik Und Eisengiesserei Gmbh, 4300 Essen Process and bending press for the bending of a straight pipe to form a pipe bend with connected straight legs
DE102006018688A1 (en) * 2006-04-13 2007-10-18 Visteon Global Technologies Inc., Van Buren Method for bending flat tubes for heat exchangers and curved flat tubes
DE102006018688B4 (en) * 2006-04-13 2009-08-27 Visteon Global Technologies Inc., Van Buren Method for bending multiport tubes for heat exchangers

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