EP1023952B1 - 2-Walzen-Schrägwalzwerk und Verfahren zur Herstellung von Hohlblöcken aus hochlegierten Stählen - Google Patents
2-Walzen-Schrägwalzwerk und Verfahren zur Herstellung von Hohlblöcken aus hochlegierten Stählen Download PDFInfo
- Publication number
- EP1023952B1 EP1023952B1 EP00250015A EP00250015A EP1023952B1 EP 1023952 B1 EP1023952 B1 EP 1023952B1 EP 00250015 A EP00250015 A EP 00250015A EP 00250015 A EP00250015 A EP 00250015A EP 1023952 B1 EP1023952 B1 EP 1023952B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rolling
- rolling mill
- roll cross
- dual roll
- base body
- 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 - Lifetime
Links
- 238000005096 rolling process Methods 0.000 title claims description 35
- 229910045601 alloy Inorganic materials 0.000 title claims description 13
- 239000000956 alloy Substances 0.000 title claims description 13
- 229910000831 Steel Inorganic materials 0.000 title claims description 12
- 238000000034 method Methods 0.000 title claims description 12
- 239000010959 steel Substances 0.000 title claims description 12
- 230000009977 dual effect Effects 0.000 title claims 12
- 239000000463 material Substances 0.000 claims abstract description 22
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000011733 molybdenum Substances 0.000 claims abstract 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 229910000531 Co alloy Inorganic materials 0.000 claims description 2
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000007750 plasma spraying Methods 0.000 claims description 2
- 238000007788 roughening Methods 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 238000007751 thermal spraying Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- YPFNIPKMNMDDDB-UHFFFAOYSA-K 2-[2-[bis(carboxylatomethyl)amino]ethyl-(2-hydroxyethyl)amino]acetate;iron(3+) Chemical compound [Fe+3].OCCN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O YPFNIPKMNMDDDB-UHFFFAOYSA-K 0.000 claims 1
- 230000000181 anti-adherent effect Effects 0.000 claims 1
- 238000007664 blowing Methods 0.000 claims 1
- 239000012876 carrier material Substances 0.000 claims 1
- 238000010285 flame spraying Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 3
- 229910001182 Mo alloy Inorganic materials 0.000 abstract 2
- 238000004080 punching Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009694 cold isostatic pressing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000003466 welding Methods 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
- B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills
Definitions
- the invention relates to a 2-roll cross-rolling mill for the production of hollow blocks high-alloy steels with guides for the rolling stock, which define the forming zone when punching of the hollow block transverse to the rolling axis close according to the preamble of Claim 1 or 10, and the use of such a 2-roll cross-rolling mill.
- JP-A-60-099407 is to be regarded as the closest prior art.
- lubricant can be transferred to the work rolls unintentionally, so that there is a slip (slip) between rolls and rolling stock, which up can lead to the termination of the punching process.
- the slippage is said to occur by adding a Si carbide containing liquid can be avoided, but this will be a additional device and medium required.
- the object of the present invention is to be seen in an effective and Find an affordable way to remove the harmful adhesions on the work surfaces Avoid guidance tools.
- the work surface has a thickness between 0.1 and 10 mm. It but should be the thickness of the work surface be chosen so that the amounts of thermal expansion of the working part and Base body on the contact surface at working temperature are almost the same, so it there is no thermal stress and detachment of the work surface.
- connection between the base body and the material of the work surface can done positively or by defined roughening of the contact surfaces between the Work surface and the basic body. It is also conceivable to join the work surface or thermal spraying (flame-plasma spraying) or on the Apply body. Another solution is to go through the working part hot isostatic pressing or cold isostatic pressing and sintering to produce by powder metallurgy.
- the base material of the base body is a high-strength steel or is an iron, nickel or cobalt-based alloy or, according to claim 10, also completely from the material of the working part. In the latter case, the whole exists Monolithic guide tool made of Mo or the Mo-based alloy.
- the guide tool should be before and after the Punching process as well as during punching by suitable measures such as Compressed air nozzles or mechanical covers before contact with cooling water to be protected. It is also conceivable that the cooling and protection of the Guide tools before contact with water by inflating an inert gas, e.g. Nitrogen.
- an inert gas e.g. Nitrogen
- the roller cooling should, if necessary, automatically until the beginning of the next punching process.
Description
Claims (14)
- 2-Walzen-Schrägwalzwerk zur Herstellung von Hohlblöcken aus hochlegierten Stählen mit Führungswerkzeugen für das Walzgut, die die Umformzone beim Lochen des Hohlblockes quer zur Walzachse schließen,
wobei die Führungswerkzeuge jeweils aus einem aus einem Trägerwerkstoff bestehenden Grundkörper und einem die Arbeitsfläche bildenden Werkstoff mit gegenüber hochlegierten Stählen antiadhäsiven Eigenschaften und hoher Warmfestigkeit zusammengesetzt sind, dadurch gekennzeichnet, dass der Werkstoff der Arbeitsfläche Molybdän oder eine Molybdänbasislegierung ist
und dass die Dicke der Arbeitsfläche so gewählt wird, dass die Beträge der Wärmedehnung des Arbeitsteils und des Grundkörpers an der Kontaktfläche bei Arbeitstemperatur nahezu gleich sind. - 2-Walzen-Schrägwalzwerk nach Anspruch 1,
dadurch gekennzeichnet, dass die Führungswerkzeuge Schuhe, Scheiben oder Rollen sind. - 2-Walzen-Schrägwalzwerk nach Anspruch 1 bis 2,
dadurch gekennzeichnet, dass die Dicke der Arbeitsfläche 0,1 bis 10 mm beträgt. - 2-Walzen-Schrägwalzwerk nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass die drehfeste Verbindung zwischen Grundkörper und Arbeitsfläche formschlüssig erfolgt. - 2-Walzen-Schrägwalzwerk nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die drehfeste Verbindung zwischen Grundkörper und Arbeitsfläche durch definiertes Aufrauhen der Kontaktflächen zwischen Arbeitsfläche und Grundkörpers gewährleistet wird. - 2-Walzen-Schrägwalzwerk nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass der Arbeitsteil durch heißisostatisches Pressen oder kaltisostatisches Pressen und Sintern auf pulvermetallurgischem Wege hergestellt wird - 2-Walzen-Schrägwalzwerk nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass die Arbeitsfläche durch Fügen oder thermisches Spritzen (Flamm-, Plasma-Spritzen) hergestellt bzw. auf den Grundkörper aufgebracht wird. - 2-Walzen-Schrägwalzwerk nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass der Werkstoff des Grundkörpers ein höherfester Stahl oder eine Eisen-, Nickel- oder Kobaltbasislegierung ist. - 2-Walzen-Schrägwalzwerk nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass der Werkstoff des Grundkörpers der Werkstoff des Arbeitsteils ist. - 2-Walzen-Schrägwalzwerk zur Herstellung von Hohlblöcken aus hochlegierten Stählen mit Führungswerkzeugen für das Walzgut, die die Umformzone beim Lochen des Hohlblockes quer zur Walzachse schließen,
dadurch gekennzeichnet, dass das gesamte Führungswerkzeug monolithisch aus Mo oder der Mo-Basislegierung besteht. - Verfahren zur Herstellung von Hohlblöcken aus hochlegierten Stählen mit Führungswerkzeugen für das Walzgut, die die Umformzone beim Lochen des Hohlblockes quer zur Walzachse schließen unter Verwendung eines 2-Walzen-Schrägwalzwerkes nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet, dass die Arbeitsfläche oder das gesamte Führungswerkzeug vor dem Walzen auf eine Temperatur oberhalb Raumtemperatur gebracht wird. - Verfahren zur Herstellung von Hohlblöcken nach Anspruch 11,
dadurch gekennzeichnet, dass die Führungswerkzeuge vor und nach dem Lochungsvorgang sowie während des Lochens durch geeignete Maßnahmen wie Druckluftdüsen oder mechanische Abdeckungen vor dem Kontakt mit Kühlwasser geschützt werden. - Verfahren zur Herstellung von Hohlblöcken nach Anspruch 12,
dadurch gekennzeichnet, dass die Kühlung und der Schutz der Führungswerkzeuge vor Wasserkontakt durch Aufblasen eines inerten Gases, z.B. Stickstoff, erfolgt. - Verfahren zur Herstellung von Hohlblöcken nach einem der Ansprüche 11 bis 13,
dadurch gekennzeichnet, dass nach dem Lochungsvorgang die Walzenkühlung, ggf automatisch, bis zum Beginn des nächsten Lochungsvorgangs unterbrochen wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19903974 | 1999-01-26 | ||
DE19903974A DE19903974A1 (de) | 1999-01-26 | 1999-01-26 | 2-Walzen-Schrägwalzwerk und Verfahren zur Herstellung von Hohlblöcken aus hochlegierten Stählen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1023952A1 EP1023952A1 (de) | 2000-08-02 |
EP1023952B1 true EP1023952B1 (de) | 2002-05-22 |
Family
ID=7896063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00250015A Expired - Lifetime EP1023952B1 (de) | 1999-01-26 | 2000-01-18 | 2-Walzen-Schrägwalzwerk und Verfahren zur Herstellung von Hohlblöcken aus hochlegierten Stählen |
Country Status (6)
Country | Link |
---|---|
US (1) | US6260396B1 (de) |
EP (1) | EP1023952B1 (de) |
JP (1) | JP4624514B2 (de) |
AT (1) | ATE217813T1 (de) |
DE (2) | DE19903974A1 (de) |
ES (1) | ES2173069T3 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012107041B4 (de) | 2012-08-01 | 2014-05-15 | Benteler Deutschland Gmbh | Verfahren und Vorrichtung zur Herstellung eines metallischen Hohlblockes aus einem metallischen Block |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4078412A (en) * | 1970-05-11 | 1978-03-14 | Columbiana Foundry Company | Support shoes and methods of supporting metal members such as seamless tubes |
US4006618A (en) * | 1974-07-23 | 1977-02-08 | Samon Yanagimoto | Method of producing seamless steel tube |
JPS5837160A (ja) * | 1981-08-27 | 1983-03-04 | Mitsubishi Metal Corp | 継目無鋼管製造用熱間傾斜圧延機のガイドシユ−用鋳造合金 |
JPS59153506A (ja) * | 1983-02-19 | 1984-09-01 | Kawasaki Steel Corp | 耐摩耗性および耐焼付性に優れたシ−ムレス管製造用ガイドシユ−の製造方法 |
JPS6099407A (ja) * | 1983-11-04 | 1985-06-03 | Sumitomo Metal Ind Ltd | 継目無鋼管製管機用ガイドシユ− |
JPS6250009A (ja) * | 1985-08-27 | 1987-03-04 | Nippon Steel Corp | 鋼管圧延機用芯金 |
JPH01154808A (ja) * | 1987-12-11 | 1989-06-16 | Nippon Steel Corp | 鋼管圧延用工具 |
JPH01191453A (ja) * | 1988-01-27 | 1989-08-01 | Hitachi Ltd | 半導体装置 |
JPH02133106A (ja) * | 1988-11-10 | 1990-05-22 | Sumitomo Metal Ind Ltd | 製管機用プラグ |
JPH02224808A (ja) * | 1989-02-27 | 1990-09-06 | Kawasaki Steel Corp | 継目無鋼管の傾斜圧延方法 |
JPH02224806A (ja) * | 1989-02-28 | 1990-09-06 | Nkk Corp | 継目無し鋼管製造用プラグ |
JP2590595B2 (ja) * | 1990-07-24 | 1997-03-12 | 住友金属工業株式会社 | 継目無ステンレス鋼管の製造方法 |
JP3545834B2 (ja) * | 1994-09-21 | 2004-07-21 | 株式会社リコー | 熱定着装置 |
JPH10130687A (ja) * | 1996-10-30 | 1998-05-19 | Kawasaki Steel Corp | 熱間加工用潤滑剤組成物 |
-
1999
- 1999-01-26 DE DE19903974A patent/DE19903974A1/de not_active Withdrawn
-
2000
- 2000-01-18 DE DE50000172T patent/DE50000172D1/de not_active Expired - Lifetime
- 2000-01-18 AT AT00250015T patent/ATE217813T1/de not_active IP Right Cessation
- 2000-01-18 EP EP00250015A patent/EP1023952B1/de not_active Expired - Lifetime
- 2000-01-18 ES ES00250015T patent/ES2173069T3/es not_active Expired - Lifetime
- 2000-01-21 JP JP2000012797A patent/JP4624514B2/ja not_active Expired - Fee Related
- 2000-01-26 US US09/491,822 patent/US6260396B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP4624514B2 (ja) | 2011-02-02 |
DE19903974A1 (de) | 2000-07-27 |
ES2173069T3 (es) | 2002-10-16 |
ATE217813T1 (de) | 2002-06-15 |
JP2000225403A (ja) | 2000-08-15 |
EP1023952A1 (de) | 2000-08-02 |
US6260396B1 (en) | 2001-07-17 |
DE50000172D1 (de) | 2002-06-27 |
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