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 possibleInfo
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture 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
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making 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)
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)
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 |
-
0
- DE DESCH78251D patent/DE471645C/en not_active Expired
Cited By (6)
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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