DE260425C - - Google Patents
Info
- Publication number
- DE260425C DE260425C DENDAT260425D DE260425DA DE260425C DE 260425 C DE260425 C DE 260425C DE NDAT260425 D DENDAT260425 D DE NDAT260425D DE 260425D A DE260425D A DE 260425DA DE 260425 C DE260425 C DE 260425C
- Authority
- DE
- Germany
- Prior art keywords
- rollers
- rolling
- stretching
- workpiece
- blocking
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
Description
KAISERLICHESIMPERIAL
K PATENTAMT.K PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- JVe 260425 -KLASSE Ta. GRUPPE 13. - JVE 260,425 -. CLASS Ta GROUP 13.
MANNESMANNRÖHREN-WERKE in DÜSSELDORF.MANNESMANNRÖHREN-WERKE in DÜSSELDORF.
Verfahren, Blöcke im Schräg walzwerk zu lochen und mit den gleichen Walzen unter Umkehr der Walzrichtung zu strecken.Method of punching blocks in the piercing mill and using the same rollers to stretch while reversing the rolling direction.
Zusatz zum Patent 259625.Addition to patent 259625.
Patentiert im Deutschen Reiche vom 18. Mai 1911 ab. Längste Dauer: 4. April 1926. Patented in the German Empire on May 18, 1911. Longest duration: April 4, 1926.
Das in dem Hauptpatent 259625 beschriebene Verfahren, Rohre im Schrägwalzwerk zu blocken (lochen) und zu strecken, ist auch ausführbar in einem Schrägwalzwerk mit scheibenförmigen Walzen. In diesem Falle wird die Umkehr der Bewegungsrichtung in bekannter Weise dadurch erzielt, daß die eine Walzenachse parallel mit sich selbst gehoben und die andere parallel mit sich selbst gesenkt wird. Die Arbeitsflächen für das Strecken liegen hierbei in einer anderen Ringzone wie die für das Blocken.The method described in the main patent 259625, tubes in the piercing mill to Blocking (punching) and stretching can also be carried out in a cross rolling mill with disk-shaped Rollers. In this case, the reversal of the direction of movement is achieved in a known manner in that the one The roller axis is raised parallel to itself and the other is lowered parallel to itself will. The work surfaces for stretching are in a different ring zone than the ones for blocking.
Es hat sich gezeigt, daß diese Ausführungsform des Verfahrens sich besonders zum Blocken und Ausstrecken von Röhren kleinerer Abmessungen eignet.It has been shown that this embodiment of the method is particularly useful for blocking and extending tubes of smaller dimensions.
Gegenüber dem in dem Hauptpatent beschriebenen Verfahren hat das abgeänderte Verfahren ferner den Vorteil, geringe oder gar ao keine Faserverdrehung zu geben.Compared to the method described in the main patent, this has changed The method also has the advantage of giving little or even no fiber twist.
Fig. ι zeigt den Vorgang des Blockens und Fig. 2 den des Streckens.Fig. Ι shows the process of blocking and Fig. 2 that of stretching.
Das Werkstück w wird gemäß Fig. 1, im Sinne des Pfeiles 1, bei einer bestimmten Stellung der Scheibenwalzen s, s1, die sich in entgegengesetzter Richtung, im Sinne der Pfeile 2, drehen, über den Dorn d geschoben, wobei die ringförmigen Arbeitsflächen α das Blocken bewirken. Ist dies beendet, so wird die Lage der Achsen der Walzen s, sl gewechselt, so daß das hohlgeblockte Werkstück unter Beibehaltung der Umdrehungsrichtung der Walzen im Sinne des Pfeiles 3 durch das Schrägwalzwerk getrieben und demgemäß das vorgeblockte Rohr gestreckt wird. Da hierbei die ringförmigen Arbeitsflächen b auf das Werkstück einwirken müssen, so müssen die Walzen auch entsprechend eingestellt und einander in achsialer Richtung genähert werden. Auch hier wird der Dorn d entsprechend gesteuert, wie in dem Hauptpatent beschrieben.The workpiece w is pushed over the mandrel d according to FIG. 1, in the direction of the arrow 1, at a certain position of the disk rollers s, s 1 , which rotate in the opposite direction, in the direction of the arrows 2, the annular working surfaces α cause blocking. When this is finished, the position of the axes of the rollers s, s l is changed so that the hollow-blocked workpiece is driven through the cross-rolling mill in the direction of arrow 3 while maintaining the direction of rotation of the rollers, and the pre-blocked pipe is accordingly stretched. Since the ring-shaped working surfaces b must act on the workpiece, the rollers must also be adjusted accordingly and brought closer to one another in the axial direction. Here, too, the mandrel d is controlled accordingly, as described in the main patent.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE260425T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE260425C true DE260425C (en) |
Family
ID=30124432
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT260425D Active DE260425C (en) | |||
| DENDAT259625D Active DE259625C (en) |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT259625D Active DE259625C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE259625C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990000448A1 (en) * | 1988-07-09 | 1990-01-25 | John Metcalfe | Rolling mill and method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3717698A1 (en) * | 1986-06-25 | 1988-01-14 | Kocks Technik | METHOD AND SYSTEM FOR PRODUCING SEAMLESS TUBES |
| DE10334011B3 (en) * | 2003-07-25 | 2004-08-12 | Sms Meer Gmbh | Rolling mill forming seamless steel tube, includes roller end sections to grip and carry the tube or its blank, and inner tool with blank-penetrating section at its end |
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0
- DE DENDAT260425D patent/DE260425C/de active Active
- DE DENDAT259625D patent/DE259625C/de active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990000448A1 (en) * | 1988-07-09 | 1990-01-25 | John Metcalfe | Rolling mill and method |
| GB2238500A (en) * | 1988-07-09 | 1991-06-05 | John Metcalfe | Rolling mill and method |
| GB2238500B (en) * | 1988-07-09 | 1993-05-26 | John Metcalfe | Rolling mill |
Also Published As
| Publication number | Publication date |
|---|---|
| DE259625C (en) |
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