EP2470315A2 - Verfahren zur herstellung warmgewalzter hohlprofile mit rechteckigem querschnitt und mit kleinen kantenradien - Google Patents
Verfahren zur herstellung warmgewalzter hohlprofile mit rechteckigem querschnitt und mit kleinen kantenradienInfo
- Publication number
- EP2470315A2 EP2470315A2 EP10752278A EP10752278A EP2470315A2 EP 2470315 A2 EP2470315 A2 EP 2470315A2 EP 10752278 A EP10752278 A EP 10752278A EP 10752278 A EP10752278 A EP 10752278A EP 2470315 A2 EP2470315 A2 EP 2470315A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow
- section
- profile
- hollow profiled
- reduction
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000005098 hot rolling Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 9
- 238000009435 building construction Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 abstract description 8
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/14—Recontouring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/16—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts of specific articles made from metal rods, tubes, or profiles, e.g. crankshafts, by specially adapted methods or means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
- B21D47/01—Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
- B66C23/28—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels
- B66C23/283—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of assembled elements
- B66C23/286—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail constructed to operate at successively higher levels with frameworks composed of assembled elements with locking devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12292—Workpiece with longitudinal passageway or stopweld material [e.g., for tubular stock, etc.]
Definitions
- the invention relates to a method for producing hot-rolled hollow sections made of steel according to the preamble of claim 1. Furthermore, the invention relates to a hollow profile produced according to this method according to claim 5 and the
- the known as MSH ® profiles hot rolled hollow sections may be from
- a round tube is first produced from a steel strip formed to a slit pipe, generally by means of HFI welding, which after heating to deformation temperature in corresponding
- Profile rolling stands is hot rolled to a hollow profile.
- EN 10210-2 does not specify the outer radii of curvature but the lengths of the rounding areas, referred to below as visible edges.
- Second moment of inertia and a greater flexural and torsional stiffness results in connections in the profile edge region a smaller weld gap and thus a more appealing appearance, which is very important in visual constructions.
- a force can be introduced at least partially rectilinear in a profile wall parallel to the force when the
- Visible edge is smaller than the wall thickness, which is advantageous for the static design.
- the tower elements are made of square or rectangular hollow sections
- z. B the lower chords of the boom of trolley tower cranes to obtain a wider bearing surface for the trolley rollers or generally when loaded on bending profiles, z. B. for the well-known from DE 10 2007 031 142 crane runway support system made of steel for high
- hollow profiles welded together for example, consisting of two L-shaped legs, which have very small visible edge lengths of ⁇ 1.0 ⁇ t and have thus far fallen below the standard specification for hot-finished hollow sections, have been used up to now.
- the object of the invention is therefore to provide a method for producing hot-rolled
- a method is used to solve this problem, in which for a given profile cross-section introduced into the roll mill Vorrohr based on the previously default standard Nennau built manmesser an enlarged diameter, which can be reached from a degree of reduction of the front pipe and to be reached Hollow profile dimensions is determined, wherein the degree of reduction to be achieved in a range of -2.0% to -13% and is determined according to the following formula:
- Vorrohr bemessers can now be realized not only visible edge lengths of ⁇ 1, 5 x t but even visual edge lengths of ⁇ 1.0 x t or ⁇ 0.6 x t.
- Roll stand already experiences no feed before leaving the forming zone and gets stuck in the rolling stand.
- Vorrohr donemesser, so too low a degree of reduction, the caliber filling in the radius areas is not sufficient and it is not enough small visible edge generated.
- the inventive enlargement of the Vorrohr bemessers by maintaining the required degree of reduction are thus set relatively narrow limits, with reduction degrees of -2.2% to -4.0% for submitkanteninn ⁇ 1.0 xt and ⁇ -4.0% for visible edge lengths ⁇ 0.6 xt proved to be advantageous.
- these values can even be achieved without a change in the calibration of the rolls in comparison to the use of a standard pre-pipe diameter.
- the advantage of the method according to the invention is that compared with the hollow profiles welded together from individual profiles, hot-rolled hollow profiles that can now be produced very economically can also be used for applications that could not be used there due to the visible edge lengths that were previously too great.
- the hollow profile 1 of the tower element is designed as a vertically extending tower element corner profile "corner post."
- the visible edges of the hollow profile are denoted by Ci and C 2 .
- the connection with the politicianstockenden tower element is done by means of a centrally through the opposite leg of the hollow section 1 plugged through bolt 2, which connects the Turmisseckprofile the lower with those of the tower element mounted thereon.
- the hollow profile 1 is provided in the region of the bolt connection with reinforcing tabs 4, 4 'and the bolt 2 secured by splints 3, 3' against loosening.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10752278T PL2470315T3 (pl) | 2009-08-28 | 2010-08-12 | Sposób wytwarzania wydrążonych profili walcowanych na gorąco o prostokątnym przekroju poprzecznym i o małych promieniach zaokrąglenia krawędzi |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009039710.8A DE102009039710B4 (de) | 2009-08-28 | 2009-08-28 | Verfahren zur Herstellung warmgewalzter Hohlprofile mit kleinen Kantenradien, Hohlprofil und Verwendung des Hohlprofils |
PCT/DE2010/000974 WO2011023167A2 (de) | 2009-08-28 | 2010-08-12 | Verfahren zur herstellung warmgewalzter hohlprofile mit kleinen kantenradien |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2470315A2 true EP2470315A2 (de) | 2012-07-04 |
EP2470315B1 EP2470315B1 (de) | 2017-08-02 |
Family
ID=43501052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10752278.1A Active EP2470315B1 (de) | 2009-08-28 | 2010-08-12 | Verfahren zur herstellung warmgewalzter hohlprofile mit rechteckigem querschnitt und mit kleinen kantenradien |
Country Status (9)
Country | Link |
---|---|
US (1) | US9056344B2 (de) |
EP (1) | EP2470315B1 (de) |
KR (1) | KR101766692B1 (de) |
CN (1) | CN102574191B (de) |
BR (1) | BR112012004309B1 (de) |
DE (1) | DE102009039710B4 (de) |
ES (1) | ES2645756T3 (de) |
PL (1) | PL2470315T3 (de) |
WO (1) | WO2011023167A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202011101599U1 (de) | 2011-05-12 | 2011-09-23 | Emilio Reales Bertomeo | Offshore-Fundament für Windenergieanlagen |
CN108607880A (zh) * | 2018-05-18 | 2018-10-02 | 石家庄轴设机电设备有限公司 | 方矩形尖角管热成形生产线 |
CN110726064A (zh) * | 2018-07-17 | 2020-01-24 | 欣诺冷弯型钢产业研究院(曹妃甸)有限公司 | 一种角部增厚冷热复合成型的方矩形钢管及制备方法 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1019968A (en) * | 1910-07-27 | 1912-03-12 | Phenix Tube Company | Tube-forming mechanism. |
DE843834C (de) * | 1944-04-19 | 1952-07-14 | Deutsche Edelstahlwerke Ag | Verfahren und Vorrichtung zum Ziehen von Hohlkoerpern |
JPS6117323A (ja) | 1984-07-04 | 1986-01-25 | Hitachi Ltd | 金属管の製造方法 |
DE3921456A1 (de) * | 1989-06-30 | 1991-01-10 | Hoesch Ag | Verfahren zur herstellung von rechteckigen hohlprofilen unterschiedlicher wanddicke |
AT399674B (de) * | 1992-08-03 | 1995-06-26 | Voest Alpine Ind Anlagen | Vorrichtung zum kontinuierlichen umformen eines metallischen rohres |
JP3779335B2 (ja) * | 1993-09-22 | 2006-05-24 | 日本発条株式会社 | キャブオーバ−形運転室を有する車両のドアビーム |
JPH0938722A (ja) * | 1995-07-28 | 1997-02-10 | Kawasaki Steel Corp | 角鋼管の製造方法 |
JP2719129B2 (ja) * | 1996-04-10 | 1998-02-25 | 双福鋼器株式会社 | 鋼製長尺部材の製造方法 |
US5868299A (en) * | 1997-05-05 | 1999-02-09 | Abbey Etna Machine Company | Method and apparatus for maintaining seam alignment in seam welded tubes |
JP3353880B2 (ja) * | 1997-08-28 | 2002-12-03 | 川崎製鉄株式会社 | 継目無角形鋼管の製造方法 |
DE10261604B4 (de) * | 2002-06-28 | 2011-07-28 | Nakajima Steel Pipe Co., Ltd. | Verbindungsaufbau von Säulenstahlrohren |
JP4388340B2 (ja) * | 2003-10-03 | 2009-12-24 | 新日本製鐵株式会社 | 自動車用強度部材 |
JP2006009380A (ja) * | 2004-06-25 | 2006-01-12 | Nakajima Steel Pipe Co Ltd | 鋼管柱および鋼管柱の製造方法 |
JP4780952B2 (ja) * | 2004-11-26 | 2011-09-28 | 株式会社中田製作所 | 角管成形用ロールと角管のロール成形方法及び成形装置 |
DE102006010951A1 (de) | 2006-03-03 | 2007-09-06 | V&M Deutschland Gmbh | Tragsystem aus Stahl für Dachkonstruktionen |
JP4283856B2 (ja) * | 2006-06-12 | 2009-06-24 | 株式会社神戸製鋼所 | リングギア用平線の製造方法 |
DE102007031142A1 (de) | 2007-07-02 | 2009-01-15 | Dittmann, Cornelius, Dipl.-Ing. | Kranbahntragsystem aus Stahl für hohe Beanspruchungen |
DE102009008809A1 (de) | 2009-02-11 | 2010-08-19 | V & M Deutschland Gmbh | Zugstange für die Abspannung eines Kranauslegers |
DE102009008808A1 (de) | 2009-02-11 | 2010-09-09 | V & M Deutschland Gmbh | Zugstange für die Abspannung eines Kranauslegers |
-
2009
- 2009-08-28 DE DE102009039710.8A patent/DE102009039710B4/de not_active Expired - Fee Related
-
2010
- 2010-08-12 KR KR1020127005250A patent/KR101766692B1/ko active IP Right Grant
- 2010-08-12 BR BR112012004309-9A patent/BR112012004309B1/pt active IP Right Grant
- 2010-08-12 US US13/393,030 patent/US9056344B2/en active Active
- 2010-08-12 ES ES10752278.1T patent/ES2645756T3/es active Active
- 2010-08-12 CN CN201080038616.8A patent/CN102574191B/zh not_active Expired - Fee Related
- 2010-08-12 EP EP10752278.1A patent/EP2470315B1/de active Active
- 2010-08-12 WO PCT/DE2010/000974 patent/WO2011023167A2/de active Application Filing
- 2010-08-12 PL PL10752278T patent/PL2470315T3/pl unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2011023167A2 * |
Also Published As
Publication number | Publication date |
---|---|
ES2645756T3 (es) | 2017-12-07 |
KR20120089639A (ko) | 2012-08-13 |
CN102574191B (zh) | 2015-10-14 |
CN102574191A (zh) | 2012-07-11 |
PL2470315T3 (pl) | 2017-12-29 |
BR112012004309B1 (pt) | 2020-10-27 |
BR112012004309A2 (pt) | 2016-03-15 |
US20120244372A1 (en) | 2012-09-27 |
EP2470315B1 (de) | 2017-08-02 |
DE102009039710B4 (de) | 2014-03-20 |
WO2011023167A3 (de) | 2011-04-28 |
DE102009039710A1 (de) | 2011-03-31 |
WO2011023167A2 (de) | 2011-03-03 |
KR101766692B1 (ko) | 2017-08-09 |
US9056344B2 (en) | 2015-06-16 |
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