EP2872660A1 - Formteile aus korrosionsbeständigen kupferlegierungen - Google Patents
Formteile aus korrosionsbeständigen kupferlegierungenInfo
- Publication number
- EP2872660A1 EP2872660A1 EP13730117.2A EP13730117A EP2872660A1 EP 2872660 A1 EP2872660 A1 EP 2872660A1 EP 13730117 A EP13730117 A EP 13730117A EP 2872660 A1 EP2872660 A1 EP 2872660A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- molded parts
- weight
- production
- optionally
- hot pressing
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/114—Treating the molten metal by using agitating or vibrating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1206—Accessories for subsequent treating or working cast stock in situ for plastic shaping of strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
-
- 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
- C22C9/02—Alloys based on copper with tin 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
Definitions
- the invention relates to metallic molded parts, methods for producing the molded parts, use of the molded parts and the use of an alloy for the production of molded parts.
- molded parts are understood integral components with complex geometry.
- a complex geometry is present when the component in no
- Direction has a continuous translational invariance and consequently can not be produced by a simple, quasi-continuous, shaping process.
- simple forming processes are the rolling of strips, the pressing of bars or the drawing of pipes.
- the invention relates in particular to hollow or at least partially hollow moldings such as pipe connectors, sleeves, pipe bends or T-pieces.
- Such moldings of metallic materials are produced either directly by molding and machining or semi-finished by forming and machining. If large degrees of deformation are to be achieved, the forming process takes place at high temperatures. Examples include forging processes such as free-form or die-forging (hot pressing).
- Molded parts made of copper materials are used in many areas of technology. sets, for example, as a housing, connectors, sliding elements or in valves and fittings. Because of their good corrosion resistance, moldings made of copper materials are preferably used in piping systems for liquid and gaseous media as fittings, bends, T-pieces, valve bodies or fittings. A special role is played by the use of such molded parts in
- Gunmetal be made by casting.
- the castings are very coarse-grained, they have a rough surface and have only a limited dimensional stability. There is also the risk of voids, segregations and pores in castings. Such casting defects can lead to leaks in the components. Red castings are much less forgeable and machinable than brass parts.
- the addition of lead makes the structure of gunmetal slightly finer and improves the machinability of the material.
- lead closes solidification pockets due to its low melting point, thus ensuring a dense microstructure.
- Typical gunmetal alloys contain from 2 to 7% by weight of lead.
- the regulations for materials used in installations for drinking water have been tightened in terms of lead and nickel. In some states, the lead content is currently limited to 0.25 wt .-%. In the United States, this upper limit applies from 2014 onwards. It is expected that in the future, the rules will be tightened up to the prohibition of lead.
- EP 2 290 114 A1 proposes to carry out water-conducting components as castings of a copper alloy with 4 to 6% by weight of tin and 4 to 6% by weight of zinc.
- the lead content of the alloy is limited to 0.1% by weight. By reducing the lead content, the adverse properties of the castings are not improved, but rather worsened. In particular, it becomes more difficult to ensure the tightness of the components.
- the document EP 1 600 517 B1 discloses a lead-free copper alloy containing 69 to 79% by weight of Cu, 2 to 4% by weight of Si and the remainder zinc. The Si content largely reduces the susceptibility to stress corrosion cracking. However, the high zinc content of at least 17% by weight may adversely affect the corrosion resistance of this brass material.
- a lead-reduced copper-tin-zinc alloy containing about 3% by weight of tin and about 9% by weight of zinc is described in DIN CEN / TS 13388.
- the relevant material data sheet of the German Copper Institute (DKI) shows that this alloy is only warm to a sufficient extent and that it is only available as flat material, ie in the form of plates, sheets, strips, strips and rounds.
- Other semi-finished shapes such as tubes, rods, profiles and forgings made of this material are marked 'not standardized'.
- the substantially same information can be found in DIN 17662 for a lead-reduced copper-tin-zinc alloy containing about 6% by weight of tin and about 6% by weight of zinc. Especially are referred to as available semi-finished products only bands and sheets.
- Essential here is a cold forming step by rotary swaging with a degree of deformation of 5 to 30%. The density of Gitterver GmbHeh is thereby increased and the material cured. A good machinability of the material is achieved after a Homogenmaschinesglühung.
- JP 2002-275563 A proposes the addition of Fe, Ni, Co or Mn to lead-free bronze in order to improve the hot-rollability.
- the material is called a band at the
- JP 2003-013038 A proposes to add 20 to 1000 ppm of carbon to a copper-tin-zinc alloy in order to achieve good hot workability.
- the material is used for the production of electronic components
- the document EP 1 777 307 B1 reveals that grain refining can be achieved by alloying zirconium to a lead-free copper-tin-zinc alloy, so that the production of shaped parts by means of hot forming is also made possible.
- the disadvantages of using zirconium are pointed out in EP 1 777 307 B1 itself.
- the zirconium content must be at least 0.017% by weight, which has an unfavorable effect on the cost of the material.
- the alloying of elements for grain refining is basically undesirable because it makes the casting process more complex and difficult to control in the scrap cycle.
- the invention has for its object to provide improved moldings in particular for use in water-carrying pipe systems, a copper material for use in the manufacture of improved moldings and a method for producing molded parts from a copper material.
- the copper material should have outstanding corrosion resistance, be free from the elements lead, antimony, silicon, zirconium or other chemical grain fine, good heat-formable and easy to machine.
- the molded parts produced from this material should have a homogeneous structure, a high dimensional stability and a good surface finish.
- the invention relates to a use of a copper alloy by the features of claim 1, with regard to the molded parts by the features of claim 4, with respect to a use of the molded parts by the features of claim 5 and with respect to a method for producing molded parts by the features of claim 6 played.
- the other dependent claims relate to advantageous embodiments and further developments of the invention.
- the invention includes the use of a copper alloy having the following composition in% by weight: Sn: 2 to 8%,
- the invention is based on the consideration that the corrosion resistance of metallic materials is determined primarily by their composition. In addition, the manufacturing process and the surface properties have a significant influence on the corrosion resistance of the components. Copper materials with a copper content of at least 84% by weight and alloying proportions of tin (between 2 and 8% by weight), zinc (between 2.5 and 13% by weight) and optionally up to 0.6% by weight of nickel and phosphorus have a very good corrosion resistance in an aqueous environment. Castings of these materials generally have a coarse, needlelike grain and are difficult to heat form.
- a fine grain can be adjusted without additional elements such as lead in proportions greater than 0.25 wt .-%, bismuth, boron or zirconium must be added.
- a fine-grained microstructure is set in the material by causing the existing residual melt to be disturbed during the solidification process. This is preferably done by stirring, more preferably by electromagnetic stirring of the residual melt during the solidification process.
- the solidification of the alloy melt takes place in a temperature interval. When the melt cools, initial precipitations first form when falling below a certain temperature during the solidification process. Upon further cooling, dendritic crystal structures can grow at these nucleation sites.
- the respective existing If the residual melt is disturbed and an internal movement is imposed on it, it prevents a typical cast structure from forming with stem crystals. Instead, a fine-grained microstructure forms, with partly dendritic, partly globular solidified, small grains.
- the fine-grained microstructure improves the formability of the material. Consequently, such conditioned materials can be used for the production of moldings, wherein the production of the moldings can be done in a similar manner as the production of moldings made of brass materials.
- the production of molded parts includes a hot pressing step.
- the molded parts produced by die-pressing (hot pressing) or open-die forging are characterized in particular by a dense, homogeneous structure and a smooth surface. At the same time they have a very good corrosion resistance due to the material composition.
- the phosphorus content of the copper alloy may be at most 0.04% by weight, in a particularly preferred embodiment at most 0.01% by weight. Phosphor enables better pourability. With increasing phosphorus content, however, the hot workability is reduced. Consequently, the less phosphorus is contained in the alloy, the safer the production of the molded parts by means of a hot pressing process.
- Another aspect of the invention includes molded parts made of a copper alloy having the following composition in% by weight:
- metallic materials is determined by the composition and by the manufacturing process.
- copper materials with a copper content of at least 84% by weight and alloying proportions of tin (between 2 and 8% by weight), zinc (between 2.5 and 13% by weight) and optionally up to
- 0.6 wt .-% nickel are mainly moldings produced by casting. Castings of these materials generally have a coarse, needlelike grain, a rough surface, and are poorly machinable. By suitable conditioning of the material during the melting and casting process, however, a fine grain can be adjusted without additional elements such as lead in proportions greater than 0.25 wt .-%, bismuth, boron or zirconium must be added.
- a fine-grained microstructure is set in the material by causing the existing residual melt to be disturbed during the solidification process. This is preferably done by stirring, more preferably by electromagnetic stirring of the residual melt during the solidification process. The fine-grained structure improves the formability of the material.
- the production of moldings from such conditioned materials can then be done in a similar manner as the production of moldings made of brass materials.
- the production of molded parts includes a hot pressing step. Die by means of die (hot pressing) or
- molded parts produced by open-die forging are characterized by a dense, homogeneous structure, better dimensional stability and a smooth surface. Therefore, the molded parts produced by hot pressing or forging are preferable to the cast ones.
- Another aspect of the invention includes the use of molded parts of a copper alloy having the following composition in% by weight:
- the invention is based on the consideration that the corrosion resistance of metallic materials is determined primarily by their composition.
- the manufacturing process and the surface properties have a significant influence on the corrosion resistance of the components.
- Copper materials with a copper content of at least 84% by weight and alloying proportions of tin (between 2 and 8% by weight), zinc (between 2.5 and 13% by weight) and optionally up to 0.6% by weight nickel have one very good corrosion resistance in aqueous environment. Therefore, these materials are used to produce molded parts that are used as fittings, connectors and similar piping systems in water. Cast molded parts made from these materials generally have a coarse, needlelike grain and a rough surface. Furthermore, they are bad machinable, which is why the texture of the casting surface is usually left.
- a fine grain can be adjusted without additional elements such as lead in proportions greater than 0.25 wt .-%, bismuth, boron or zirconium must be added.
- a fine-grained microstructure is set in the material by causing the existing residual melt to be disturbed during the solidification process. This is preferably done by stirring, more preferably by electromagnetic stirring of the residual melt during the solidification process.
- the fine-grained structure improves the formability of the material. Consequently, such conditioned materials can be used for the production of moldings, wherein the production of the moldings in a similar manner as the production of moldings Brass materials can be made.
- the production of molded parts includes a hot pressing step.
- the molded parts produced by die-pressing (hot pressing) or open-die forging are characterized by a dense, homogeneous structure, a better dimensional stability and a smooth surface. At the same time they have a very good corrosion resistance due to the material.
- a further aspect of the invention relates to a process for the production of molded parts from a copper alloy having the following composition in% by weight:
- the invention is based on the consideration that the machinability of metallic materials is determined by their composition and the conditions during the manufacturing process. Copper materials with a
- Copper content of at least 84% by weight and alloy contents of tin between 2 and 8% by weight, zinc between 2.5 and 13% by weight and optionally up to 0.6% by weight of nickel are predominantly used for the production of moldings by means of casting , Castings of these materials generally have a coarse, needle-like grain.
- a fine grain can be adjusted without additional elements such as lead in proportions greater than 0.25 wt .-%, bismuth, boron or zirconium must be added.
- a fine-grained microstructure is set in the material by the residual melt present during the solidification process
- the production of moldings from such conditioned materials can then be done in a similar manner as the production of moldings made of brass materials.
- the production of molded parts includes in particular the following steps:
- step d) The temperature reached in step d) should be chosen so that the material is not yet converted to the thixotropic state.
- the molded parts produced by means of die-pressing (hot pressing) or open-die forging are characterized in particular by a dense, homogeneous structure, a better dimensional stability and a smooth surface.
- the cold workability of gunmetal is inferior to the cold workability of brass. Therefore, it is advantageous in process step b) to dimension the semi-finished products in such a way that no cold forming is required between the continuous casting in process step b) and the hot pressing in process step e).
- the cross sections of the cast semifinished products are to be selected so that the compacted from the semi-finished Pressrohmaschine have a favorable for the hot pressing process shape and size.
- the pressed raw parts of the alloy before the hot pressing process a structure having a mean grain size less than 1 mm.
- the conditioning of the material during the melting and casting process should take place so that the material already in Cast state has a structure with a mean grain size less than 1 mm.
- the smaller the grain size the more grain boundaries are available as slip planes during the hot pressing process.
- the plastic deformation is better distributed to the totality of the grains. This results in a uniform recrystallization of the structure in the forming zones.
- the castings between the process steps b) and d) can be subjected to a heat treatment. As a result, the material is homogenized and the casting-typical segregation effects and second phases can be eliminated.
- a morphology of the morphology can be achieved which approximates the morphology of a kneading structure.
- the cast semifinished products can be subjected to a peeling treatment to remove the outer material layer. This can remove unwanted contaminants or segregations that may be present in the casting skin. They no longer affect the subsequent processing steps and the quality of the final product can be further improved.
- the molded parts after the process step e) can be processed by a span-lifting process. It can thus be made the final contour of the molding. It is also possible to improve the surface quality of the molding.
- hot pressing in step e) the structure of the material is very fine-grained and the machinability is favorably influenced.
- Fig. 2 is a diagram in which the flow curves are plotted
- FIG. 1 shows a longitudinal section through the cast body 1.
- the structure corresponds to the typical cast structure with stem crystals 21 and it consists of several millimeters large, dendritically solidified grains.
- this section 2 of the cast body 1 can be seen in the left portion of the figure.
- the point indicated by reference numeral 3 corresponds to the beginning of the electromagnetic stirring in the casting process.
- the transition region, in which the grain size decreases significantly, is identified by reference numeral 31.
- a section 4 follows, in which a partly dendritic, partly globular structure is present.
- the extent of the dendritically solidified grains 41, as well as that of the globular grains, is clearly less than 1 mm. Stem crystals no longer appear.
- lead-free gunmetal was annealed at 350 ° C, 550 ° C and 750 ° C. At annealing temperature 350 ° C, no significant structural change occurs. At 550 ° C, the second phases disappear, but the segregation effects remain. Only at 750 ° C, these segregations disappear, the dendritic structure has completely dissolved in favor of homogeneous, equiaxed grains. No significant grain coarsening occurred in any of the heat treatments. The grain size always remained smaller than 1 mm. Tests with a torsion plastometer showed that lead-free gunmetal, whose microstructure was conditioned by electromagnetic stirring during the casting process, allows very high degrees of deformation during hot forming.
- Fig. 2 documents these experimental results.
- Plotted is the yield stress, calculated from the measured torque of the torsion plastometer, against the degree of deformation ⁇ , calculated from the angle of rotation of the plastometer. Similar to stress-strain diagrams, there is initially a steeply rising curve, which reflects the elastic behavior of the material. When the material begins to flow plastically, the curves are flatter and merge into an approximately horizontal plateau. The breakage of the sample finally manifests itself in a sudden drop in yield stress.
- FIGS. 3 to 5 show the fracture surfaces of the cast bodies on which the
- FIG. 3 shows the sample of leaded gunmetal as a reference.
- the stem crystals of the cast structure are clearly visible.
- Fig. 4 shows the sample of lead-free gunmetal, which was cast without stirring.
- the fracture surfaces differ only slightly from those of the lead-containing gunmetal in FIG. 3. Again, the stem crystals of the cast structure are clearly visible.
- Fig. 5 shows the sample of lead-free gunmetal, which was poured with electromagnetic stirring. The fracture surfaces show a fine-grained topology, stalk crystals are not visible. From the lead-free gunmetal, which was stirred electromagnetically, were by means of Drop forging (hot pressing) Moldings made for water installations. Contrary to expectations, this lead-free gunmetal was processed without any significant problems by drop forging to hollow bodies.
- methods such as mechanical stirring,
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- 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)
- Forging (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL13730117T PL2872660T3 (pl) | 2012-07-12 | 2013-06-13 | Kształtki z odpornych na korozję stopów miedzi |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012013817.2A DE102012013817A1 (de) | 2012-07-12 | 2012-07-12 | Formteile aus korrosionsbeständigen Kupferlegierungen |
| PCT/EP2013/001744 WO2014008969A1 (de) | 2012-07-12 | 2013-06-13 | Formteile aus korrosionsbeständigen kupferlegierungen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2872660A1 true EP2872660A1 (de) | 2015-05-20 |
| EP2872660B1 EP2872660B1 (de) | 2017-03-08 |
Family
ID=48669853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13730117.2A Active EP2872660B1 (de) | 2012-07-12 | 2013-06-13 | Formteile aus korrosionsbeständigen kupferlegierungen |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20150165519A1 (de) |
| EP (1) | EP2872660B1 (de) |
| JP (1) | JP6309003B2 (de) |
| DE (1) | DE102012013817A1 (de) |
| ES (1) | ES2627950T3 (de) |
| IL (1) | IL235511A0 (de) |
| PL (1) | PL2872660T3 (de) |
| PT (1) | PT2872660T (de) |
| WO (1) | WO2014008969A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018028091A1 (zh) * | 2016-08-09 | 2018-02-15 | 苏州列治埃盟新材料技术转移有限公司 | 一种用于机械零部件的铜基复合材料及其制备方法 |
| EP3581667A2 (de) | 2018-06-12 | 2019-12-18 | Gebr. Kemper GmbH + Co. KG Metallwerke | Formteile aus einer korrosionsbeständigen und zerspanbaren kupferlegierung |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180087130A1 (en) * | 2015-03-31 | 2018-03-29 | Kurimoto, Ltd. | Copper alloy for use in a member for water works |
| JP6803457B2 (ja) | 2017-03-24 | 2020-12-23 | 株式会社Ihi | 耐摩耗性銅亜鉛合金及びこれを用いた機械装置 |
| DE102019106136A1 (de) | 2019-03-11 | 2020-09-17 | M.G. Meccanica Srl | Verfahren zur Herstellung von metallischen Bauteilen sowie dadurch hergestelltes metallisches Bauteil |
| DE102019106131A1 (de) * | 2019-03-11 | 2020-09-17 | M.G. Meccanica Srl | Verfahren zur Herstellung von Bauteilen für medienführende Gas- oder Wasserleitungen sowie dadurch hergestelltes Bauteil |
| EP4603611A1 (de) | 2024-02-19 | 2025-08-20 | Gebr. Kemper GmbH + Co. KG | Verfahren zur herstellung metallischer bauteile aus einer kupferlegierung |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58119445A (ja) * | 1982-01-11 | 1983-07-15 | Sumitomo Light Metal Ind Ltd | 銅または銅合金の連続的鋳造方法 |
| JPH0199748A (ja) * | 1987-05-28 | 1989-04-18 | Kobe Steel Ltd | 銅あるいは銅合金の電磁撹拌式連続鋳造装置 |
| DE4103963A1 (de) * | 1991-02-09 | 1992-08-13 | Kabelmetal Ag | Verfahren zum kontinuierlichen stranggiessen von kupferlegierungen |
| US5553660A (en) * | 1991-02-09 | 1996-09-10 | Km-Kabelmetal Aktiengesellschaft | Method for continuously casting copper alloys |
| DE4324008C2 (de) | 1993-07-17 | 2003-03-27 | Km Europa Metal Ag | Verwendung einer korrosionsbeständigen Legierung auf Kupferbasis |
| JP3734372B2 (ja) | 1998-10-12 | 2006-01-11 | 三宝伸銅工業株式会社 | 無鉛快削性銅合金 |
| JP3459623B2 (ja) * | 2000-08-08 | 2003-10-20 | 京和ブロンズ株式会社 | 無鉛青銅合金 |
| JP4610765B2 (ja) | 2001-03-21 | 2011-01-12 | 株式会社神戸製鋼所 | 熱間圧延可能なりん青銅 |
| JP4944311B2 (ja) | 2001-04-27 | 2012-05-30 | 積水化学工業株式会社 | 塗布防曇剤及び農業用フィルム |
| JP3690746B2 (ja) * | 2002-09-09 | 2005-08-31 | 株式会社キッツ | 銅合金とその合金を用いた鋳塊又は接液部品 |
| JP2005248303A (ja) | 2004-03-08 | 2005-09-15 | Marue Shindo Kk | 無鉛快削青銅鋳物及び無鉛快削青銅物品の製造方法 |
| US20070169854A1 (en) | 2004-08-10 | 2007-07-26 | Sanbo Shindo Kogyo Kabushiki Kaisha | Copper-based alloy casting in which grains are refined |
| EP1798298B2 (de) * | 2005-12-14 | 2016-05-04 | Gebr. Kemper GmbH + Co. KG Metallwerke | Verwendung einer migrationsarmen Kupferlegierung sowie Bauteile aus dieser Legierung |
| EP1801250B1 (de) * | 2005-12-22 | 2017-11-08 | Viega Technology GmbH & Co. KG | Migrationsarme Bauteile aus Kupferlegierung für Medien oder Trinkwasser führender Gewerke |
| JP2012523493A (ja) * | 2009-04-08 | 2012-10-04 | スイスメタル − ウムス シュヴァイツァリッシェ メタルヴェルケ アーゲー | 機械加工できる銅基合金と、それを製造するための方法 |
| EP2290114A1 (de) | 2009-08-04 | 2011-03-02 | Gebr. Kemper GmbH + Co. KG Metallwerke | Wasserführendes Bauteil |
| DE102010055055B3 (de) * | 2010-12-17 | 2012-05-10 | Wieland-Werke Ag | Verwendung einer Kupfer-Zinn-Mehrstoffbronze |
-
2012
- 2012-07-12 DE DE102012013817.2A patent/DE102012013817A1/de not_active Withdrawn
-
2013
- 2013-06-13 US US14/404,228 patent/US20150165519A1/en not_active Abandoned
- 2013-06-13 PL PL13730117T patent/PL2872660T3/pl unknown
- 2013-06-13 WO PCT/EP2013/001744 patent/WO2014008969A1/de not_active Ceased
- 2013-06-13 EP EP13730117.2A patent/EP2872660B1/de active Active
- 2013-06-13 PT PT137301172T patent/PT2872660T/pt unknown
- 2013-06-13 ES ES13730117.2T patent/ES2627950T3/es active Active
- 2013-06-13 JP JP2015520832A patent/JP6309003B2/ja active Active
-
2014
- 2014-11-05 IL IL235511A patent/IL235511A0/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018028091A1 (zh) * | 2016-08-09 | 2018-02-15 | 苏州列治埃盟新材料技术转移有限公司 | 一种用于机械零部件的铜基复合材料及其制备方法 |
| EP3581667A2 (de) | 2018-06-12 | 2019-12-18 | Gebr. Kemper GmbH + Co. KG Metallwerke | Formteile aus einer korrosionsbeständigen und zerspanbaren kupferlegierung |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015527487A (ja) | 2015-09-17 |
| ES2627950T3 (es) | 2017-08-01 |
| PT2872660T (pt) | 2017-05-22 |
| EP2872660B1 (de) | 2017-03-08 |
| DE102012013817A1 (de) | 2014-01-16 |
| JP6309003B2 (ja) | 2018-04-11 |
| WO2014008969A1 (de) | 2014-01-16 |
| PL2872660T3 (pl) | 2017-08-31 |
| US20150165519A1 (en) | 2015-06-18 |
| IL235511A0 (en) | 2015-01-29 |
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