WO2003018225A1 - Verfahren zur herstellung von strangförmigen produkten aus magnesium oder magnesiumlegierungen - Google Patents
Verfahren zur herstellung von strangförmigen produkten aus magnesium oder magnesiumlegierungen Download PDFInfo
- Publication number
- WO2003018225A1 WO2003018225A1 PCT/DE2002/003125 DE0203125W WO03018225A1 WO 2003018225 A1 WO2003018225 A1 WO 2003018225A1 DE 0203125 W DE0203125 W DE 0203125W WO 03018225 A1 WO03018225 A1 WO 03018225A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnesium
- lubricant
- cold drawing
- carried out
- smoothed
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
-
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/003—Drawing materials of special alloys so far as the composition of the alloy requires or permits special drawing methods or sequences
-
- 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
- B21C9/00—Cooling, heating or lubricating drawing material
Definitions
- the invention relates to a method for producing strand-like products, such as wires, rods and tubes, from
- the wires produced by the process can be used, for example, as filler metals for laser beam welding of magnesium materials. However, they can also be used, for example, as a base for physico-chemical coatings, such as for the new magnesium diboride superconductor MgB 2 (J. Nagamatsu, N. Nagakawa, T. Muranaka, Y. Zenitani and J. Akimitsu: Nature 410 (2001 ) 63).
- soaps and waxes are used as lubricants for light forming and that talc and graphite are used for more demanding forming at elevated temperatures (S. Kalpak ⁇ ian: Manufacturing Processes for Engineering Materials, Addison-Wessley Publishing Company, Readmg, Massachusetts, USA, 1991, p.342).
- the invention is based on the object of providing a method which enables the production of magnesium wires, rods and tubes by cold drawing.
- This task is solved with a forming process in which the magnesium materials are subjected to a smooth surface treatment before they are formed, which ensures the lowest possible surface roughness, the mean surface roughness value R z ⁇ 12 ⁇ m, and in which cold drawing using solid lubricant coatings adhering firmly to the material to be formed.
- the smooth surface treatment is carried out in such a way that a surface roughness with an average roughness depth R z of 2 to 8 ⁇ m is generated.
- the surface of the magnesium materials is expediently smoothed using drawing shells or grinding.
- the smoothed magnesium materials are coated with a firm, well-adhering lubricant film by drying up liquid lubricant dispersions.
- Metal selenium systems which contain polymeric components, such as cellulose derivatives or polyvinyl alcohol, which contribute to increasing the adhesiveness, can preferably be used as the lubricant. Before cold drawing, solid lubricant films can also be applied by pressing on plastic or paste-like lubricants or lubricant mixtures.
- the cold drawing is carried out with a decrease in cross section of 10% to 40%, preferably with a decrease in cross section of 20%.
- the drawn product can finally be drawn-coated, smoothed over or freed from the oxide skin by pickling.
- the top layer-free product can then be subjected to a chemical reaction.
- a chemical reaction can be carried out on the surface in pure hydrogen with diborane, by means of which a magnesium diboride layer (MgB 2 ) is produced on the surface of the product, which has superconducting properties.
- MgB 2 magnesium diboride layer
- the method according to the invention is based on the idea that the starting material for the shaping process, in contrast to the conventional method, must have a surface that is as smooth as possible and that, in addition, a well-adhering lubricant layer is applied to this slightly rough surface.
- the magnesium material is subjected to surface treatment before cold drawing, which smoothes the material to a high degree.
- the smoothed material is then coated with a solid lubricant film with good adhesion and can then be drawn using conventional drawing dies, for example made of hard metal.
- a magnesium rod with an initial diameter of 30 mm is extruded at a temperature of 350 ° C.
- the extruded rod is peeled and drawn starting from 0 5.7 mm wire diameter over 4 steps at room temperature as follows:
- this starting wire is coated with a solid lubricant of the R261 type, which contains polyvinyl alcohol as an adhesive component, from a liquid dispersion and dried.
- the resulting solid film has calcium stearate as the lubricant base and enables the entire drawing process to be carried out without the additional use of lubricant.
- the wire drawn in this way can then be further processed in the fine drawing process up to a diameter of ⁇ 1 mm, it being necessary for the surface of the wire to be subjected to smoothing between individual drawing stages.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Extraction Processes (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT02760134T ATE307691T1 (de) | 2001-08-24 | 2002-08-22 | Verfahren zur herstellung von strangförmigen produkten aus magnesium oder magnesiumlegierungen |
DE50204707T DE50204707D1 (de) | 2001-08-24 | 2002-08-22 | Verfahren zur herstellung von strangförmigen produkten aus magnesium oder magnesiumlegierungen |
EP02760134A EP1420899B1 (de) | 2001-08-24 | 2002-08-22 | Verfahren zur herstellung von strangförmigen produkten aus magnesium oder magnesiumlegierungen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10142204.0 | 2001-08-24 | ||
DE10142204A DE10142204A1 (de) | 2001-08-24 | 2001-08-24 | Verfahren zur Herstellung von strangförmigen Produkten aus Magnesium oder Magnesiumlegierungen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003018225A1 true WO2003018225A1 (de) | 2003-03-06 |
Family
ID=7696916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/003125 WO2003018225A1 (de) | 2001-08-24 | 2002-08-22 | Verfahren zur herstellung von strangförmigen produkten aus magnesium oder magnesiumlegierungen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1420899B1 (de) |
AT (1) | ATE307691T1 (de) |
DE (2) | DE10142204A1 (de) |
WO (1) | WO2003018225A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103170516A (zh) * | 2013-03-05 | 2013-06-26 | 广州有色金属研究院 | 一种镁或镁合金毛细管的短流程制备方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4862983B2 (ja) * | 2005-03-22 | 2012-01-25 | 住友電気工業株式会社 | マグネシウム溶接線の製造方法 |
DE102006014790A1 (de) * | 2006-03-29 | 2007-10-11 | Getrag Ford Transmissions Gmbh | Getriebe mit Ausgleichsscheibe |
CN104174685B (zh) * | 2014-07-28 | 2015-12-09 | 攀钢集团江油长城特殊钢有限公司 | 汽轮机转子槽锲用异型棒材及其加工方法 |
CN106269937B (zh) * | 2016-08-31 | 2019-02-22 | 福机机械工业(宁波)有限公司 | 一种汽车发动机油路***安装支架的毛坯冷拉工艺 |
CN115255825A (zh) * | 2022-07-29 | 2022-11-01 | 上海工程技术大学 | 一种高轴径比细晶结构的镁合金线材制备工艺 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19834853A1 (de) * | 1998-08-01 | 2000-02-03 | August Neuhoff Fa | Trägermaterial und dessen Verwendung sowie Verfahren zur Kaltumformung |
-
2001
- 2001-08-24 DE DE10142204A patent/DE10142204A1/de not_active Withdrawn
-
2002
- 2002-08-22 EP EP02760134A patent/EP1420899B1/de not_active Expired - Lifetime
- 2002-08-22 AT AT02760134T patent/ATE307691T1/de not_active IP Right Cessation
- 2002-08-22 DE DE50204707T patent/DE50204707D1/de not_active Expired - Lifetime
- 2002-08-22 WO PCT/DE2002/003125 patent/WO2003018225A1/de not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19834853A1 (de) * | 1998-08-01 | 2000-02-03 | August Neuhoff Fa | Trägermaterial und dessen Verwendung sowie Verfahren zur Kaltumformung |
Non-Patent Citations (2)
Title |
---|
EDITED BY MICHAEL M. AVEDESIAN AND HUGH BAKER: "Magnesium and Magnesium Alloys", May 1999, ASM INTERNATIONAL, USA, XP002223044 * |
EDITED BY S.L. SEMIATIN ET AL.: "Metals Handbook Vol. 14, Forming and Forging", April 1988, ASM INTERNATIONAL, USA, XP002223045 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103170516A (zh) * | 2013-03-05 | 2013-06-26 | 广州有色金属研究院 | 一种镁或镁合金毛细管的短流程制备方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1420899B1 (de) | 2005-10-26 |
DE10142204A1 (de) | 2003-03-06 |
EP1420899A1 (de) | 2004-05-26 |
ATE307691T1 (de) | 2005-11-15 |
DE50204707D1 (de) | 2005-12-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3540114A (en) | Method of forming fine filaments | |
DE2631907C2 (de) | Verfahren zur Herstellung eines Gleitmaterials | |
DE2104328C2 (de) | Verfahren zum Herstellen von metallischen Fasern | |
DE2617289B2 (de) | Verfahren zum plastischen Verformen von kubisch flächenzentrierten Metallen | |
US3807026A (en) | Method of manufacturing fine metallic filaments | |
DE2364210A1 (de) | Verfahren zur herstellung eines formstueckes, insbesondere eines rohres | |
DE1758162B2 (de) | Mit chromlegierungspulcer plattierter strangpressbolzen und verfahren zur herstellung desselben | |
EP1420899A1 (de) | Verfahren zur herstellung von strangförmigen produkten aus magnesium oder magnesiumlegierungen | |
DE60118313T2 (de) | Aluminium Schweisskerndraht | |
DE69033147T2 (de) | Nichtverschmutzende feste schmiermittel | |
WO1999022886A1 (de) | Verfahren zum herstellen von nickel-titan-hohlprofilen | |
DE3601707A1 (de) | Verfahren zur herstellung von koerpern hoher dichte und hoher zugfestigkeit | |
CH629845A5 (en) | High-temperature lubricant | |
DE69833272T2 (de) | Gradientenkompositmaterial auf metallbasis mit guten schmier- und abriebswiderstandseigenschaften, herstellungsverfahren und verwendung | |
EP0341688B1 (de) | Verfahren zur Herstellung elektrischer Leitungsmittel mit einer Schmiermittelzusammensetzung | |
DE3717606C2 (de) | ||
DE1452493A1 (de) | Verfahren zum Strangpressen von Molybdaen und Wolfram sowie deren Legierungen | |
DE2037889C3 (de) | Verfahren zum Herstellen von Metallfaden | |
DE3210304A1 (de) | Verfahren zum strangpressen bzw. fliesspressen von werkstuecken aus rohteilen aus titan oder einer titanlegierung | |
Okhrimenko et al. | Effect of the Pressing Method on the Deformation Texture of Tubes of D 16 Alloy | |
DE19501274A1 (de) | Verfahren zur Herstellung eines Installationsrohrs aus Kupfer | |
DE2516611A1 (de) | Verfahren zur behandlung eines rohlings aus aluminium oder aluminiumlegierung, der einem strangpressen unterzogen werden soll | |
DE1577106A1 (de) | Verbundmetalle und Verfahren zu ihrer Herstellung | |
DE607354C (de) | Verfahren zur Herstellung von rohrfoermigen Gegenstaenden aus Eisen- oder Metallegierungen, insbesondere Hohlbohrern usw. | |
DE939444C (de) | Verfahren zum Schnellstrangpressen voller und hohler Werkstuecke aus zur Warmbruechigkeit neigenden Leichtmetall-Legierungen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BY BZ CA CH CN CO CR CU CZ DK DZ EC EE ES FI GB GD GE GH GM HR ID IL IN IS JP KE KG KP KR KZ LC LK LS LT LU LV MA MD MG MK MN MW MZ NO NZ OM PH PL PT RO RU SD SE SI SK SL TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE BG CH CY CZ DK EE ES FI FR GB GR IE IT LU MC PT SE SK TR BF BJ CF CG CI GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2002760134 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2002760134 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2002760134 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: JP |