FI118328B - Use of alloy - Google Patents
Use of alloy Download PDFInfo
- Publication number
- FI118328B FI118328B FI20050195A FI20050195A FI118328B FI 118328 B FI118328 B FI 118328B FI 20050195 A FI20050195 A FI 20050195A FI 20050195 A FI20050195 A FI 20050195A FI 118328 B FI118328 B FI 118328B
- Authority
- FI
- Finland
- Prior art keywords
- extrusion
- beta phase
- brass
- channels
- phase
- Prior art date
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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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
-
- 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/002—Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C18/00—Alloys based on zinc
- C22C18/02—Alloys based on zinc with copper as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
-
- 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
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Extrusion Of Metal (AREA)
Description
118328 METALLISEOKSEN KÄYTTÖ Tämä keksintö liittyy metalliseoksen tai metalliseosten käyttöön puristettujen tuotteiden monimutkaisten muotojen punotuksessa (ekstruusiossa). Metalliseos on messinki, kupari-5 pitoinen metalliseos, jossa on sinkkiä seoskomponenttina.118328 USE OF ALLOY This invention relates to the use of an alloy or alloys in the extrusion of complex shapes of extruded products. The alloy is a brass, copper-5 alloy containing zinc as an alloy component.
Pursotus on menetelmä, jolla voidaan valmistaa pitkiä, suoria metalliosia. Poikkileikkaukset, joita voidaan valmistaa, vaihtelevat kiinteästä pyöreästä, nelikulmaisesta L-muotoihin, T-muotoihin, putkiin ja moniin muihin eri tyyppeihin. Pursotus tehdään puristamalla me-10 tallia suljettuun onkaloon työkalun läpi, joka tunnetaan nimellä suutin, käyttäen joko mekaanista tai hydraulista puristusta. Pursotus aiheuttaa puristus- ja leikkausvoimia aihioon. Mitään vetojännitystä ei synny, mikä tekee suuren muodonmuutoksen mahdolliseksi metallia repimättä. Onkalo, joka sisältää raaka-ainetta, on vuorattu kulutusta kestävällä materiaalilla. Tämä voi vastustaa korkeita radiaalisia kuormia, jotka syntyvät, kun materiaali työn-15 tyy suuttimesta.Extrusion is a method of producing long, straight metal parts. The cross-sections that can be manufactured range from solid circular, rectangular to L-shaped, T-shaped, tubes and many other types. Extrusion is accomplished by pressing the me-10 team into a closed cavity through a tool known as a nozzle, using either mechanical or hydraulic compression. Extrusion causes compression and shear forces on the blank. No tensile stress is created, which allows for major deformation without tearing the metal. The cavity containing the raw material is lined with a wear-resistant material. This can withstand the high radial loads that occur when material is injected from the nozzle.
Pursotus voidaan tehdä kylmäpursotuksena tai kuumapursotuksena. Kylmäpursotus on menetelmä, joka suoritetaan huoneenlämpötilassa tai hiukan korotetuissa lämpötiloissa.Extrusion can be done by cold extrusion or hot extrusion. Cold extrusion is a process that is performed at room temperature or at slightly elevated temperatures.
Tätä menetelmää voidaan käyttää useimmille materiaaleille, jotka on suunniteltu tarpeeksi ; : *: 20 karkeaan työstöön, joka kestää pursotuksen aikaansaamia jännityksiä. Esimerkkejä metal- : T: leista, jotka voidaan puristaa, ovat lyijy, tina, alumiiniseokset, kupari, titaani, molybdeeni, " *': vanadiini ja teräs. Esimerkkejä osista, joita kylmäpuristetaan, ovat taipuvat putket, alumii- • · * mastiat, lieriöt ja hammaspyörän auniot. Kylmäpursotuksen etuja ovat, ettei tapahdu hapet- • · •, · · tumista, ja hyvät mekaaniset ominaisuudet johtuen voimakkaasta kylmätyöstöstä niin kau- M» :.,, · 25 an kuin syntyvät lämpötilat ovat uudelleenkiteytymislämpötilan alapuolella ja edelleen hyvä pinnan viimeistely käyttämällä sopivia voiteluaineita.This method can be used for most materials that are designed well enough; : *: 20 for coarse machining that can withstand extrusion stresses. Examples of metal: Ts that can be squeezed include lead, tin, aluminum alloys, copper, titanium, molybdenum, "* ': vanadium and steel. Examples of parts that are cold-pressed are bending tubes, aluminum · · * masts, Cylinders and gear wheels The advantages of cold extrusion are that there is no oxidation, and good mechanical properties due to heavy cold working for as long as the resulting temperatures are below the recrystallization temperature and still have a good surface finishing with suitable lubricants.
• · · • i · ··* ··· *.. · * Kuumapursotus tehdään melko korkeissa lämpötiloissa, arviolta 50 - 75 % metallin sula- « :Y: mispisteestä. Paineet voivat vaihdella välillä 35 - 700 MPa. Johtuen korkeista lämpötilois- : ” t: 30 ta ja paineista ja sen haitallisesta vaikutuksesta suuttunen ja muiden komponenttien käyt- töikään, hyvä voitelu on tarpeen. Alemmissa lämpötiloissa käytetään öljyä ja grafiittikäsit- ♦ ·*· . * * *. telyä, kun taas korkeammissa lämpötiloissa lasijauhetta.Hot extrusion is carried out at relatively high temperatures, approximately 50-75% of the melting point of the metal. The pressures may range from 35 to 700 MPa. Due to the high temperatures and pressures and its adverse effects on the life of the oral and other components, good lubrication is required. At lower temperatures, oil and graphite handlers are used ♦ · * ·. * * *. while at higher temperatures glass powder.
• # · 2 118328• # · 2 118328
Kuvattu pursotus on tavallisesti vain yksittäistä tuotetta varten kerrallaan ja sen vuoksi on kehitetty jatkuva pursotusprosessi. Tässä jatkuvassa pursotusprosessissa materiaali puristetaan pyörivän pyörän avulla. Materiaali syötetään ja se sijaitsee pyörän kehäurassa osan pyörän yhden pyörähdyksen ajasta kunnes akselipaine pakottaa metallin virtaamaan ulos 5 urasta ja puristussuuttimen läpi. Työkalujen lähes adiabaattisen sijainnin johdosta materi aali kuumenee syntyvän sisäisen kitkan vaikutuksesta uudelleenkiteytymislämpötilan yläpuolelle, vaikkakin syöttömateriaali on alun perin huoneenlämpötilassa. Jatkuva pursotusprosessi toimii hyvin alhaisen sulamispisteen metalleilla, kuten alumiinilla ja kuparilla, mutta tavallisesti prosessi epäonnistuu, kun puristetaan monimutkaisempia muotoja ja/tai 10 kun käytetään kovempaa materiaalia, kuten kupariseoksia.The extrusion described is usually for only one product at a time and therefore a continuous extrusion process has been developed. In this continuous extrusion process, the material is compressed by means of a rotating wheel. The material is fed and is located in the circumferential groove of the wheel for a portion of one spin of the wheel until the shaft pressure forces the metal to flow out of the 5 grooves and through the press nozzle. Due to the almost adiabatic position of the tools, the material is heated by the internal friction generated above the recrystallization temperature, although the feed material is initially at room temperature. The continuous extrusion process works with very low melting point metals, such as aluminum and copper, but usually fails when extruded into more complex shapes and / or when harder materials such as copper alloys are used.
Esilläolevan keksinnön kohde on ehkäistä tunnetun tekniikan jotkut epäkohdat ja käyttää metalliseosta tai metalliseoksia puristustuotteiden monimutkaisten muotojen pursotukseen.The object of the present invention is to overcome some of the drawbacks of the prior art and to use an alloy or alloys to extrude complex shapes of extrusion products.
15 Keksinnönmukaisesti käytetään beetafaasia sisältävää messinkiä puristettujen tuotteiden monimutkaisten muotojen pursotukseen. Kun beetafaasia sisältävää messinkiä on läsnä pursotuslämpötilassa, materiaali on riittävän pehmeää monimutkaisten muotojen pursotukseen. Jos tarvitaan puristettavan materiaalin esilämmitystä, esilämmitys kohdistetaan edullisesti materiaaliin itseensä.According to the invention, beta-phase brass is used to extrude complex shapes of extruded products. When the beta phase containing brass is present at the extrusion temperature, the material is soft enough to extrude complex shapes. If preheating of the material to be compressed is required, the preheating is preferably directed to the material itself.
: : : 20 «·· · t*i : Messinki on metalliseos, joka sisältää kuparia ja sinkkiä ja haluttuja muita lisäaineita. Pe- φ '" " rustuen binääriseen tasapainosysteemiin kuparin ja sinkin välillä, keksinnönmukaisella • · · ;.,.: beetafaasia sisältävällä messingillä on 40 - 50 atomi-% sinkkiä ja loput kuparia. Beeta- • · •, i : faasia sisältävä messinki voi siten sisältää jonkin määrän muuta intermediaarista faasia, • · · :: 25 alfafaasia, kuparin ja sinkin binäärisysteemissä. Kuitenkin tämän kaksifaasiseoksen tapa uksessa beetafaasin määrä on suurempi kuin alfafaasin määrä.::: 20 «·· · t * i: Brass is an alloy containing copper and zinc and other desired additives. Based on the binary equilibrium system between copper and zinc, the brass according to the invention contains from 40 to 50 atomic percent of zinc and the remainder of copper. Thus, the brass containing the beta · · ·, i: phase may contain some amount of other intermediate phase, • · · :: 25 alpha phase, in the copper and zinc binary system. However, in the case of this biphasic mixture, the amount of beta phase is greater than the amount of alpha phase.
• · · • « · ··· ··· * · ' · · · * Pursotuksessa suuttimessa, jonka läpi metalli puristetaan, on ainakin yksi aukko, joka antaa • · ν,ί puristetulle tuotteelle halutun muodon. Kun tuotteen muoto on monimutkainen, suuttimes- ··· 30 sa on niin paljon aukkoja kuin tarvitaan tai esimerkiksi suuttimen muodossa on aukko, jos-··· sa alemman aukon osa on yhteydessä useisiin ylempiin osiin. Tämä tarkoittaa, että suutti- * *: men rakenne ei ole niin lämpötiloja kestävä kuin suuttimella yksinkertaisen rakenteen pur- sotusta varten. Käytettäessä keksinnönmukaista beetafaasia sisältävää messinkiä, jolloin messingillä on laajasti beetafaasi, messinki tulee pehmeäksi johtuen beetafaasin ominai- 3 118328 suuksista korotetuissa lämpötiloissa. Johtuen pehmeästä materiaalista, puristusvoimat suut-timen monimutkaista rakennetta vastaan pienenevät ja siten myös suuttimen lämpötilan nousu on alhaisempi. Tämänkaltainen pehmeä materiaali on edullinen monimutkaisten muotojen pursotukseen, kuten puristustuotteille, joilla on monimutkainen geometria. Kek-5 sinnönmukaisesti sopivia puristustuotteita ovat monimuotoiset pitkänomaiset tuotteet, esimerkiksi moniaukkoiset tai monikanavaiset profiilit ja putket tai monitasoiset rivat läm-mönvaihtimiin ja ilmanvaihtoon.The extrusion nozzle through which the metal is extruded has at least one opening which gives the desired shape of the extruded product. When the shape of the product is complex, the nozzle has as many openings as are needed, or, for example, the nozzle has a hole where the portion of the lower opening is connected to a plurality of upper parts. This means that the construction of the nozzle * * is not as temperature resistant as the nozzle for extruding a simple structure. When using the beta phase containing brass according to the invention, whereby the brass has a broad beta phase, the brass becomes soft due to the beta phase properties at elevated temperatures. Due to the soft material, the compression forces against the complex structure of the nozzle are reduced and thus the temperature rise of the nozzle is also lower. Such a soft material is advantageous for extrusion of complex shapes, such as compression products having complex geometry. Suitable compression products according to the Kek-5 are multifaceted elongated products, for example, multi-aperture or multi-channel profiles and pipes or multi-level ribs for heat exchangers and ventilation.
Keksinnönmukaisen beetafaasia sisältävän messingin käyttäminen on käytännöllistä tavan-10 omaiseen pursotukseen, jossa pursotus tehdään puristamalla metalli suljettuun onkaloon työkalun läpi suuttimella, joka käyttää joko hydraulista tai mekaanista puristusta. Keksintö on myös käyttökelpoinen jatkuvaan pursotukseen, jolloin materiaali puristetaan pyörivän pyörän avulla. Materiaali syötetään sisään, ja se sijaitsee pyörän kehäurassa osan pyörän pyörähdyksen ajasta, kunnes akselipaine pakottaa metallin virtaamaan ulos urasta ja puris-15 tussuuttimen läpi.The use of the beta phase brass according to the invention is practical for conventional extrusion, where the extrusion is accomplished by pressing a metal into a closed cavity through a tool using a nozzle which uses either hydraulic or mechanical compression. The invention is also useful for continuous extrusion, whereby the material is compressed by means of a rotating wheel. The material is fed in and is located in the circumferential groove of the wheel for a portion of the rotation of the wheel until the shaft pressure forces the metal to flow out of the groove and through the nozzle.
Keksintöä kuvataan seuraavassa viitaten piirrokseen, jossa kuvio 1 esittää binäärisen tasa-painokaavion binääriselle kuparin ja sinkin väliselle systeemille.The invention will now be described with reference to the drawing, in which Figure 1 shows a binary equilibrium diagram for a binary copper-zinc system.
• · !(j | 20 Kuvion 1 mukaisesti intermediaarinen beetafaasi kuparin ja sinkin binäärisysteemissä ai- • · · · kaa olla olemassa, kun sinkkipitoisuus on ainakin 33 atomi-% lämpötilassa noin 900 °C.As shown in Figure 1, the intermediate beta phase in the copper and zinc binary system should exist at a zinc content of at least 33 atoms at a temperature of about 900 ° C.
';Tämä lämpötila on liian korkea pursotukseen. Käyttökelpoinen lämpötila pursotukseen on ·...' välillä 500 °C - 800 °C, edullisesti välillä 500 °C - 600 °C. Tällä lämpötila-alueella mes- • · : singillä, joka sisältää riittävästi beetafaasia ja joka on käyttökelpoista monimutkaisiin muo- ·♦· 25 töihin, on 40 - 50 atomi-% sinkkiä, edullisesti 45 - 50 atomi-% sinkkiä messinkiä varten, joka sisältää vain intermediaarista beetafaasia.'; This temperature is too high for extrusion. A useful temperature for extrusion is · ... 'between 500 ° C and 800 ° C, preferably between 500 ° C and 600 ° C. In this temperature range, mesh, · · · · · · · · · · · · · · · ·:: ham containing sufficient beta phase and useful for complex molds has from 40 to 50 atomic% zinc, preferably from 45 to 50 atomic% zinc for brass containing only the intermediate beta phase.
• · · · · ·· ··* • · • · ··· • · m · · · · • · ·«· • · * · ··· *·· «*« • · · m · • · • f»• · · · · ······························································ · · · · · · · · · · · · · f »
Claims (20)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20050195A FI118328B (en) | 2005-02-18 | 2005-02-18 | Use of alloy |
EP06716905A EP1853743A1 (en) | 2005-02-18 | 2006-02-17 | Extrusion of a metal alloy containing copper and zinc |
US11/816,578 US20080202653A1 (en) | 2005-02-18 | 2006-02-17 | Extrusion of a Metal Alloy Containing Copper and Zinc |
PCT/SE2006/000215 WO2006088421A1 (en) | 2005-02-18 | 2006-02-17 | Extrusion of a metal alloy containing copper and zinc |
CN200680005168A CN100582282C (en) | 2005-02-18 | 2006-02-17 | Extrusion of a metal alloy containing copper and zinc |
JP2007556113A JP2008529803A (en) | 2005-02-18 | 2006-02-17 | Extrusion of copper and zinc containing alloys |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20050195A FI118328B (en) | 2005-02-18 | 2005-02-18 | Use of alloy |
FI20050195 | 2005-02-18 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI20050195A0 FI20050195A0 (en) | 2005-02-18 |
FI20050195A FI20050195A (en) | 2006-08-19 |
FI118328B true FI118328B (en) | 2007-10-15 |
Family
ID=34224229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20050195A FI118328B (en) | 2005-02-18 | 2005-02-18 | Use of alloy |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080202653A1 (en) |
EP (1) | EP1853743A1 (en) |
JP (1) | JP2008529803A (en) |
CN (1) | CN100582282C (en) |
FI (1) | FI118328B (en) |
WO (1) | WO2006088421A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101502246B1 (en) * | 2010-07-05 | 2015-03-12 | 와이케이케이 가부시끼가이샤 | Fastener element and process for producing fastener element |
KR101340487B1 (en) | 2011-09-30 | 2013-12-12 | 주식회사 풍산 | Leadless Free Cutting Copper Alloy and Process of Production Same |
CN103157692B (en) * | 2011-12-09 | 2015-06-10 | 北京有色金属研究总院 | Preparation method for zinc-based alloy specially-shaped tube |
US10287653B2 (en) | 2013-03-15 | 2019-05-14 | Garrett Transportation I Inc. | Brass alloys for use in turbocharger bearing applications |
US10695811B2 (en) | 2013-03-22 | 2020-06-30 | Battelle Memorial Institute | Functionally graded coatings and claddings |
US11383280B2 (en) | 2013-03-22 | 2022-07-12 | Battelle Memorial Institute | Devices and methods for performing shear-assisted extrusion, extrusion feedstocks, extrusion processes, and methods for preparing metal sheets |
US11045851B2 (en) | 2013-03-22 | 2021-06-29 | Battelle Memorial Institute | Method for Forming Hollow Profile Non-Circular Extrusions Using Shear Assisted Processing and Extrusion (ShAPE) |
US10109418B2 (en) | 2013-05-03 | 2018-10-23 | Battelle Memorial Institute | System and process for friction consolidation fabrication of permanent magnets and other extrusion and non-extrusion structures |
CN103556088A (en) * | 2013-10-30 | 2014-02-05 | 沈阳工业大学 | Pre-stress processing mould of high temperature alloys |
CN104795466B (en) * | 2015-04-13 | 2016-08-24 | 陈恩深 | A kind of hydrogen paralysis facility of solar cell |
DE112018001576T5 (en) * | 2017-03-24 | 2019-12-19 | Ihi Corporation | Wear-resistant copper-zinc alloy and mechanical device that uses it |
US11549532B1 (en) | 2019-09-06 | 2023-01-10 | Battelle Memorial Institute | Assemblies, riveted assemblies, methods for affixing substrates, and methods for mixing materials to form a metallurgical bond |
CN111394609B (en) * | 2020-04-24 | 2021-02-12 | 浙江大学 | Continuous extrusion process of high-strength high-conductivity copper alloy, application of continuous extrusion process and die material |
WO2023043839A1 (en) | 2021-09-15 | 2023-03-23 | Battelle Memorial Institute | Shear-assisted extrusion assemblies and methods |
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SE345399B (en) * | 1967-06-30 | 1972-05-29 | Asea Ab | |
US3535908A (en) * | 1967-07-14 | 1970-10-27 | Ibm | Injection molding of solid metal |
US3768288A (en) * | 1971-02-25 | 1973-10-30 | Jury & Spiers Pty Ltd | Process for the production of tube from ductile metal |
GB1370894A (en) * | 1971-03-12 | 1974-10-16 | Atomic Energy Authority Uk | Extrusion |
US3973428A (en) * | 1975-04-07 | 1976-08-10 | Westinghouse Electric Corporation | Uniform land length die |
US4080817A (en) * | 1976-03-26 | 1978-03-28 | Maurice Bastide | Process and a device for the extrusion of materials in the form of narrow wires |
JPS56166364A (en) * | 1980-05-24 | 1981-12-21 | Sumitomo Electric Ind Ltd | Cold working method for copper base alloy |
FI85662C (en) * | 1990-08-06 | 1992-05-25 | Outokumpu Oy | Method of making metal bodies |
US5308568A (en) * | 1993-05-20 | 1994-05-03 | Corning Incorporated | Extrusion die and method |
JP3303878B2 (en) * | 1996-09-09 | 2002-07-22 | 東陶機器株式会社 | Method and equipment for producing brass |
JPH11189856A (en) * | 1997-10-24 | 1999-07-13 | Toto Ltd | Brass material, brass pipe material and its production |
JPH11244934A (en) * | 1998-03-06 | 1999-09-14 | Furukawa Electric Co Ltd:The | Manufacture of die and mandrel for conforming extrusion dies |
JPH11300413A (en) * | 1998-04-22 | 1999-11-02 | Hitachi Cable Ltd | Extruding tool for continuous extruder |
JPH11309510A (en) * | 1998-04-28 | 1999-11-09 | Hitachi Cable Ltd | Manufacture of metallic pipe coated on inside surface |
JP3835216B2 (en) * | 2001-08-09 | 2006-10-18 | 住友金属工業株式会社 | Non-oriented electrical steel sheet and manufacturing method thereof |
JP2003073789A (en) * | 2001-09-05 | 2003-03-12 | Sumitomo Light Metal Ind Ltd | Method for manufacturing unleaded free-cutting brass superior in machinability |
-
2005
- 2005-02-18 FI FI20050195A patent/FI118328B/en not_active IP Right Cessation
-
2006
- 2006-02-17 EP EP06716905A patent/EP1853743A1/en not_active Withdrawn
- 2006-02-17 WO PCT/SE2006/000215 patent/WO2006088421A1/en active Application Filing
- 2006-02-17 US US11/816,578 patent/US20080202653A1/en not_active Abandoned
- 2006-02-17 JP JP2007556113A patent/JP2008529803A/en not_active Abandoned
- 2006-02-17 CN CN200680005168A patent/CN100582282C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2006088421A1 (en) | 2006-08-24 |
FI20050195A0 (en) | 2005-02-18 |
EP1853743A1 (en) | 2007-11-14 |
FI20050195A (en) | 2006-08-19 |
CN100582282C (en) | 2010-01-20 |
US20080202653A1 (en) | 2008-08-28 |
CN101120115A (en) | 2008-02-06 |
JP2008529803A (en) | 2008-08-07 |
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