WO1997013595A2 - Kaliberkontur der walze eines rohrwalzwerkes - Google Patents
Kaliberkontur der walze eines rohrwalzwerkes Download PDFInfo
- Publication number
- WO1997013595A2 WO1997013595A2 PCT/DE1996/001881 DE9601881W WO9713595A2 WO 1997013595 A2 WO1997013595 A2 WO 1997013595A2 DE 9601881 W DE9601881 W DE 9601881W WO 9713595 A2 WO9713595 A2 WO 9713595A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- caliber
- contour
- diameter
- roller
- calibre
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
- B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills
Definitions
- the invention relates to the caliber contour of the essentially circularly calibrated rolls of a reducing mill with three-roll stands, in particular for rolling thick-walled tubes with a wall thickness / diameter ratio of more than 0.25.
- Caliber machining technology creates a contact surface with 3 tips, namely in the caliber base and at the caliber jumps. This is shown on page 1052, Figure 11 of the publication mentioned.
- the peaks in the contact area between the roll and the rolling stock in turn lead to internal roundness on the pipe and thus have a significantly negative effect on the quality.
- the friction is increased so that the rollers wear more.
- the present invention is based on the object of improving the caliber contour of the essentially circularly calibrated rollers according to the prior art that undesired peaks in the contact surface between the rolling stock and the roll are avoided or at least flattened.
- the roll contour of each roll has a diameter widening in the region of the caliber base, in which the material region rolled in the roll jump of the caliber upstream in each case in the rolling direction can be deformed.
- the caliber diameter in the caliber base area By deliberately increasing the caliber diameter in the caliber base area, it is possible to shorten the contact length in the caliber base, so that a uniform contact surface is achieved. In this way, the tube is no longer exposed to excessive tension in the area of the caliber base, since the tips which are clearly recognizable in the prior art are largely flattened. It is particularly expedient if the diameter expansion starting from the caliber diameter is approximately 0.5% to 1.0% of the caliber diameter and extends on both sides of the caliber base center to a circumferential angle of approximately 10 ° to 15 °. With these dimensions, good tube results have been seen, ie an almost right-angled contact surface between the roll and the rolling stock.
- a diameter widening in the area of the caliber jump in addition to the diameter widening in the caliber base of the roller.
- This diameter expansion can e.g. can be achieved by increasing the transition radius at the edge of the roller to 3 mm to 5 mm. It has been shown that such radii, which are less than 3 mm in the prior art, also significantly improve the deformation ratios in the caliber and the contact tips can also be significantly reduced in the edge region of the caliber of a roller.
- Figure 1 is a front view of a partially cut inventive
- Figure 2 shows the projection of the contact surface between the tube and the invention
- FIG. 1 denotes one of three caliber rollers according to the invention, which build up the entire caliber, and which rotates about the axis of rotation 2.
- the pipe to be rolled is schematically indicated at 3.
- the essentially circular caliber 4 of the roller 1 has a diameter widening in the region of the caliber base at 5, that is to say a deepening of the caliber base.
- diameter expansions are provided in the area of the caliber jump at 6, in the form of radius enlargements at the edge of the caliber roller 2.
- the conventional caliber shape is shown in dashed lines at 7 in FIG. 1 for better understanding.
- This conventional caliber shape is shown in FIG. 2, which represents the projection of the contact surface between tube 3 and roller 1, also drawn.
- contact tips are clearly visible at 8 in the area of the caliber base 9 of the caliber roller 1 and in the area of the caliber jump 10 on both edge sides of the roller 2. These tips 8 and 10 arise on the inlet side of the roller 2 and lead to the described inner non-circular formation on the finished one Tube 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96943860A EP0854762B1 (de) | 1995-10-11 | 1996-09-27 | Kaliberkontur der walze eines rohrwalzwerkes |
PL96326154A PL180718B1 (pl) | 1995-10-11 | 1996-09-27 | Walec kalibrujacy do trójwalcowej walcarki redukcyjnej do rur PL |
DE59605068T DE59605068D1 (de) | 1995-10-11 | 1996-09-27 | Kaliberkontur der walze eines rohrwalzwerkes |
RU98108447A RU2138347C1 (ru) | 1995-10-11 | 1996-09-27 | Калибр валка трубопрокатного стана |
US09/051,360 US6065320A (en) | 1995-10-11 | 1996-09-27 | Caliber contour in a rolling mill roller for tubes |
JP51461897A JP4012570B2 (ja) | 1995-10-11 | 1996-09-27 | 管圧延機のロールのロール輪郭 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19539408A DE19539408C2 (de) | 1995-10-11 | 1995-10-11 | Kaliberkontur der Walze eines Rohrwalzwerkes |
DE19539408.9 | 1995-10-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1997013595A2 true WO1997013595A2 (de) | 1997-04-17 |
WO1997013595A3 WO1997013595A3 (de) | 1997-07-17 |
Family
ID=7775534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/001881 WO1997013595A2 (de) | 1995-10-11 | 1996-09-27 | Kaliberkontur der walze eines rohrwalzwerkes |
Country Status (10)
Country | Link |
---|---|
US (1) | US6065320A (de) |
EP (1) | EP0854762B1 (de) |
JP (1) | JP4012570B2 (de) |
CN (1) | CN1068804C (de) |
AR (1) | AR003823A1 (de) |
DE (2) | DE19539408C2 (de) |
PL (1) | PL180718B1 (de) |
RU (1) | RU2138347C1 (de) |
TW (1) | TW314480B (de) |
WO (1) | WO1997013595A2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4650747B2 (ja) * | 2004-03-29 | 2011-03-16 | 住友金属工業株式会社 | 管の製造方法及び定径圧延装置 |
JP5003833B1 (ja) * | 2011-03-31 | 2012-08-15 | 住友金属工業株式会社 | 絞り圧延用ロールの製造方法、及び、絞り圧延用ロール |
JP5849895B2 (ja) * | 2012-08-21 | 2016-02-03 | 新日鐵住金株式会社 | 絞り圧延装置及び絞り圧延装置用ロール |
RU2530591C2 (ru) * | 2013-01-16 | 2014-10-10 | Открытое акционерное общество "Российский научно-исследовательский институт трубной промышленности" (ОАО "РосНИТИ") | Калибр трубопрокатного стана |
CN105363782A (zh) * | 2015-11-30 | 2016-03-02 | 太原科技大学 | 张力减径机工作机组轧辊孔型 |
EA031598B1 (ru) * | 2016-08-29 | 2019-01-31 | Публичное акционерное общество "Трубная металлургическая компания" (ПАО "ТМК") | Калибр трехвалкового трубопрокатного стана |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2448158A1 (de) * | 1974-10-07 | 1976-04-08 | Mannesmann Roehren Werke Ag | Verfahren zum kalibrieren von walzen eines reduzierwalzwerkes |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2333916C2 (de) * | 1973-07-04 | 1986-01-09 | Kocks Technik Gmbh & Co, 4010 Hilden | Kalibrierung der Walzen einer Reduzierwalzstraße für Rohre |
IT1078828B (it) * | 1975-06-25 | 1985-05-08 | Mannesmann Roehren Werke Ag | Calibratura di un laminatoio riduttore a tre cilindri per evitare la formazione di poligoni nell interno dei tubi in occasione della laminazione riduttrice dei tubi |
-
1995
- 1995-10-11 DE DE19539408A patent/DE19539408C2/de not_active Expired - Fee Related
-
1996
- 1996-09-26 TW TW085111846A patent/TW314480B/zh active
- 1996-09-27 US US09/051,360 patent/US6065320A/en not_active Expired - Lifetime
- 1996-09-27 PL PL96326154A patent/PL180718B1/pl unknown
- 1996-09-27 EP EP96943860A patent/EP0854762B1/de not_active Expired - Lifetime
- 1996-09-27 DE DE59605068T patent/DE59605068D1/de not_active Expired - Lifetime
- 1996-09-27 WO PCT/DE1996/001881 patent/WO1997013595A2/de active IP Right Grant
- 1996-09-27 RU RU98108447A patent/RU2138347C1/ru active
- 1996-09-27 JP JP51461897A patent/JP4012570B2/ja not_active Expired - Fee Related
- 1996-09-27 CN CN96197549A patent/CN1068804C/zh not_active Expired - Fee Related
- 1996-10-08 AR ARP960104647A patent/AR003823A1/es unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2448158A1 (de) * | 1974-10-07 | 1976-04-08 | Mannesmann Roehren Werke Ag | Verfahren zum kalibrieren von walzen eines reduzierwalzwerkes |
Non-Patent Citations (2)
Title |
---|
ARCHIV FUER DAS EISENHUETTENWESEN, Bd. 41, Nr. 7, November 1970, Seiten 1047-1053, XP000618390 NEUHOFF K ET AL: "BEITRAG ZUR KALIBRIERUNG EINES STRECKREDUZIERWALZWERKES, INSBESONDERE ZUR HERSTELLUNG NAHTLOSER ROHRE AUF EINER ROHRKONTISTRASSE" in der Anmeldung erw{hnt * |
STAHL UND EISEN, Bd. 112, Nr. 4, 15.April 1992, Seiten 85-91, 155, XP000274133 THIEVEN P ET AL: "PROZESSSIMULATIONEN FUER DIE VERFAHRENSENTWICKLUNG IN DER ROHRWALZTECHNIK" * |
Also Published As
Publication number | Publication date |
---|---|
JP4012570B2 (ja) | 2007-11-21 |
CN1068804C (zh) | 2001-07-25 |
DE19539408C2 (de) | 2003-03-20 |
EP0854762B1 (de) | 2000-04-26 |
RU2138347C1 (ru) | 1999-09-27 |
WO1997013595A3 (de) | 1997-07-17 |
CN1199355A (zh) | 1998-11-18 |
TW314480B (de) | 1997-09-01 |
DE59605068D1 (de) | 2000-05-31 |
PL180718B1 (pl) | 2001-03-30 |
US6065320A (en) | 2000-05-23 |
DE19539408A1 (de) | 1997-04-17 |
JPH11513312A (ja) | 1999-11-16 |
PL326154A1 (en) | 1998-08-31 |
EP0854762A2 (de) | 1998-07-29 |
AR003823A1 (es) | 1998-09-09 |
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