EP3225707A1 - Composant pour des canalisations d'eau ou de gaz acheminant des milieux comprenant un alliage de cuivre - Google Patents

Composant pour des canalisations d'eau ou de gaz acheminant des milieux comprenant un alliage de cuivre Download PDF

Info

Publication number
EP3225707A1
EP3225707A1 EP17151949.9A EP17151949A EP3225707A1 EP 3225707 A1 EP3225707 A1 EP 3225707A1 EP 17151949 A EP17151949 A EP 17151949A EP 3225707 A1 EP3225707 A1 EP 3225707A1
Authority
EP
European Patent Office
Prior art keywords
alloy
component according
lead
component
content
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
Application number
EP17151949.9A
Other languages
German (de)
English (en)
Other versions
EP3225707B1 (fr
Inventor
Martin Haake
Andreas Hansen
Frank Leistritz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Geberit International AG
Gebr Kemper GmbH and Co KG
Rehau Automotive SE and Co KG
Original Assignee
Geberit International AG
Rehau AG and Co
Gebr Kemper GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Geberit International AG, Rehau AG and Co, Gebr Kemper GmbH and Co KG filed Critical Geberit International AG
Priority to PL17151949T priority Critical patent/PL3225707T3/pl
Priority to RU2018137812A priority patent/RU2712161C1/ru
Priority to PCT/EP2017/000374 priority patent/WO2017167441A2/fr
Publication of EP3225707A1 publication Critical patent/EP3225707A1/fr
Application granted granted Critical
Publication of EP3225707B1 publication Critical patent/EP3225707B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems

Definitions

  • the present invention relates to a component for media-carrying gas or water pipes, in particular fitting or fitting for drinking water pipes, wherein the component consists at least partially of a lead-free copper alloy.
  • the materials used to protect consumers must comply with very narrow limits, which are regulated by the Drinking Water Ordinance.
  • the in the EP 1 798 298 A1 described alloy shows a comparison with a conventional gunmetal improved migration behavior for lead, nickel, copper and zinc ions.
  • the alloy can be subjected to a heat treatment after casting in order to achieve a high proportion of ⁇ -mixed crystal and thus a particularly favorable migration behavior of the alloy.
  • Lead is practically insoluble in copper and has a low melting point. As a result, it is the last solidifying element in copper-tin alloys.
  • This constitutional behavior leads to lead being present in the structure at the end of the solidification in the form of evenly distributed, small, drop-shaped particles between the dendrite arms.
  • These fine, teardrop-shaped particles act as chipbreakers without affecting the original properties of the material. This is particularly evident in the corrosion resistance, since the lead particles are present as incoherent phases and thus can not interact with the surrounding matrix. Also, the uniform distribution of small, teardrop-shaped lead particles ensures that similar mechanical characteristics are consistently to be expected over a uniform cross section.
  • Patent US 8,470,101 B2 a lead-free alloy is described, which in addition to copper and unavoidable impurities from 0.1 wt .-% to 0.7 wt .-% sulfur, up to 8 wt .-% tin and up to 4 wt .-% zinc, and in the task of the lead over sulfur phases in the form of sulfide particles are fulfilled.
  • these sulfides do not have the property of forming themselves inevitably at the end of the solidification in the form of small, distributed phases.
  • an unfavorably chosen composition of in Patent US 8,470,101 B2 Alloy described may lead to unfavorable sulfide formation in the structure.
  • the object of the present invention is to provide a lead-free copper alloy for the production of components for media-carrying gas or water lines, which in comparison with a conventional gunmetal alloy, such as, for example, CuSn5Zn5Pb2, a corrosion-resistant matrix, good strength properties with good machining properties, high pressure tightness and improved migration behavior.
  • a conventional gunmetal alloy such as, for example, CuSn5Zn5Pb2
  • the lead-free copper alloy should have a good casting behavior, eg. In sand or continuous casting.
  • the lead-free copper alloy shows no dezincification or similar selective corrosion attack. Therefore, the lead-free copper alloy has improved corrosion resistance over the entire frame prescribed by the Drinking Water Ordinance (hereinafter referred to as "TWVO"). Accordingly, the present invention preferably represents a component for media-carrying gas or water pipes, in particular a fitting or a fitting for drinking water pipes, wherein the component consists at least partially of the lead-free copper alloy according to the invention.
  • the tin content has an influence on the strength, corrosion resistance and on the phase distribution and, in the claimed range from 3.5% by weight to ⁇ 4.8% by weight, achieves an optimally balanced, economical ratio of the properties described above.
  • a tin content of more than 4.8% by weight the strength and corrosion resistance in the matrix continue to increase, but under normal cooling conditions in sand casting, the distribution of the sulfides becomes coarser and the size increases.
  • At levels below 3.5% by weight of tin there is insufficient corrosion inhibition.
  • a high tensile strength can be achieved at levels above 4.8% by weight of tin, the elongation values of the material are reduced. Contents of well over 4.8 wt .-% tin lead to the formation of a structure which embrittlement and unfavorable effect on the processing.
  • the sulfur content of 0.25 wt .-% to 0.65 wt .-% determines the volume fraction of the sulfides with. From 0.25 wt .-% sulfur, an amount of sulfide particles is produced, which ensures sufficient machinability of the alloy. Sulfur content above 0.65 wt% sulfur can lead to the formation of undesirable coarse sulfide particles. In addition, due to the high content of sulfide particles, the load transmitted cross section, i. the cross-section of the component which receives voltages from the outside, reduce so much that it leads to a deterioration of the mechanical characteristics, such. Elongation at break and the like comes.
  • the metal sulfides are present in such a sulfur content in the lead-free copper alloy as an incoherent, finely divided, disperse phase in the form of finely divided particles. This offers the advantage that any corrosion occurring only to a small extent locally on these particles and not along contiguous, larger, individual phases of the alloy structure takes place, as is the case for example with standard brass. Due to the small size of the particles no significant corrosive attack takes place.
  • the proportion of phosphorus (P) in the lead-free copper alloy according to the invention is 0.015 wt .-% to 0.1 wt .-%. Below 0.015% by weight of phosphorus, there is no sufficient deoxidation of the melt, which has a negative effect on the phase formation of the alloy. On the other hand, if the phosphorus content exceeds 0.1 wt%, the lead-free copper alloy tends to have adverse effects on the mechanical properties such as reduced elongation at break. From these viewpoints, the weight proportion of phosphorus in the lead-free copper alloy is preferably in the range of 0.02 wt% to 0.08 wt%, more preferably in the range of 0.04 wt% to 0.06 wt%. -%.
  • the term "lead-free copper alloy” means a copper alloy containing, in particular, lead as an unavoidable impurity in an amount of not more than 0.25 wt%, but preferably 0.09 wt%, more preferably not more than 0 , 05 wt .-% includes.
  • the lead content is at most 0.25 wt .-%, preferably at most 0.09 wt .-% and particularly preferably at most less than or equal to 0.05 wt .-%.
  • the alloy shows no signs of increased lead delivery in the first few weeks.
  • the low lead content in the alloy used in the invention thus leads to a significant reduction of metal ion migration in drinking water, the low lead content has no negative effects on the chip breaking and thus on the machinability of the alloy used in the invention.
  • the nickel content in the alloy used in the invention is at most 0.4 wt .-%, preferably, the nickel content is at most 0.3 wt .-%.
  • the addition of nickel increases the corrosion resistance of the alloy, without being in conflict with hygienic safety. Similar to lead, the values of nickel migration are far below the legally required limit when tested according to DIN EN 15664-1.
  • an antimony content of at most 0.1% by weight with respect to the properties of the drinking water migration is not critical.
  • the alloy may furthermore have an iron content of at most 0.3% by weight.
  • the lead-free copper alloy may also contain fractions of the elements iron (Fe), zirconium (Zr) and / or boron (B) alone or in a combination of at least two of said elements as grain refiner. It is preferred that iron in a weight fraction of up to 0.3 wt .-%, zirconium in a weight fraction of up to 0.01 wt .-% and / or boron in a weight fraction of up to 0.01 wt. -% are contained in the lead-free copper alloy.
  • the grain finers avoid hot cracking and affect the mechanical properties, such as e.g. Tensile strength, material hardness and the like positive.
  • the copper content of the lead-free copper alloy is at least 90% by weight, preferably more than 91% by weight.
  • the sulfides of the lead-free copper alloy are homogeneously distributed in the structure.
  • the number of sulfide particles should be high and their average size should be low in order to ensure uniform mechanical properties, good corrosion resistance, improved machinability and high pressure tightness over the entire microstructure.
  • copper sulfide is preferable. because the presence of copper sulphide allows to substitute the volume of lead with a much lower content of sulfur.
  • the component according to the invention at least partially has a wall thickness in the range of 0.5 mm to 6.0 mm, since the thin wall thickness leads to suitable for the formation of copper sulfides cooling rates. Furthermore, it is preferred if the entire component according to the invention has a wall thickness within the ranges of 0.5 mm to 4.0 mm, since a wall thickness in this range results in a particularly increased formation of the desired sulfide particles. A wall thickness below 0.5 mm could not have sufficient mechanical strength of the component according to the invention due to the small cross section. From these points of view, it is preferred that the component according to the invention at least in sections has a wall thickness in the range of 1.0 mm to 4.0 mm.
  • At a wall thickness of less than 6 mm in the transverse section of the component according to the invention at least a proportion of 1.6 area percent sulfide particles and / or a surface area factor ASP% is less than 1000.
  • Such values result in sulfur sulfides being present as an incoherent, finely divided, disperse phase. As a result, deep trough and / or hole-shaped attacks, in particular corrosion attacks, are avoided on the components according to the invention.
  • the term "Area Property Code ASP%" is the mathematical description for the measure of the shape and location of a bell curve, which is a plot of the averages of the area classes (abscissa) in combination with the percent distribution of the sulfide particles in those area classes (ordinates ) yields (cf. Fig. 1 ).
  • the value of the surface content index ASP% is obtained by measuring the area of the respective particles, for example from an enlarged image of a micrograph, the percentage allocation of the particles detectable in the image in classes, the multiplication of the percentage values of the allocation with the mean of the class and the formation of a large average from the resulting averages of the classes, with the large mean being taken as the "area key figure ASP%".
  • the alloy used in the invention has the excellent property of forming a topcoat very rapidly on the inner, water-wetted surface.
  • the cover layer has a thickness of preferably at least 2 ⁇ m, more preferably of at least 3 microns, on. This covering layer increases the corrosion resistance and ensures the longevity of the components made of this material, since further corrosion is prevented. Migration from the material to the drinking water can only take place if corrosion processes take place in the material.
  • the top layer thus acts as a protective layer and limits the further metal delivery to the drinking water to a minimum.
  • the copper content in the described alloy is higher than in conventional gunmetal alloys, such. As CuSnZn5Pb2, only a reduced copper metal release takes place.
  • the term "component for media-carrying gas or drinking water pipes” is to be understood in particular as those components which come into contact with a domestic installation pipe system with water, in particular with drinking water, wherein fitting and fittings of such domestic installation pipe systems are preferred according to the invention.
  • a fitting is in particular from the EP 2 250 421 A1 to call known connector.
  • Fig. 2 shows a Turner diagram for the test waters used in the thermal aging test.
  • the carbonate hardness (as a measure of water hardness) is plotted against the chloride ion content of the test water.
  • the line labeled "Turner Classic” represents the corrosion characteristic of dezincification developed by Turner (" The Influence of Water Composition on the Dezincification of Duplex Brass Fittings ", 1965 ). According to the usual interpretation of the world of corrosion, there is no dezincification in the area below this line. Above this line, however, there is a very high risk that a damage due to dezincification of the relevant component occurs.
  • the points shown give an overview of the different test waters that were used in the described hot swapping test.
  • test specimens For the production of test specimens, half cylinders with a wall thickness of 5 mm were cast from the alloys 1 and 2. Thereafter, the test specimens were on the outside by means of a turning to a roughness Rz of max. Machined 25 ⁇ m and on the inside by means of a drilling with a through hole of roughness Rz of max. 40 ⁇ m provided. This special surface treatment is intended to allow comparability of the specimens with real manufactured components.
  • test specimens The surface of the specimens was cleaned with acetone. Subsequently, the test specimens were placed freely hanging in a test container. The test containers were then placed in a 90 ° C oven for five months with the test medium changed at seven-day intervals.
  • test media were each 21 different test water with different pH values and carbonate hardness (the carbonate hardness (KH) is that proportion of calcium and magnesium ions for which an equivalent concentration of bicarbonate ions is present in the unit volume), in addition, different levels of chloride ions and / or sulfate ions.
  • KH carbonate hardness
  • Table 2 ⁇ u> Table 2: ⁇ / u> water number PH value Carbonate hardness in ° dH Chloride in mg / l Sulfate in mg / l 1 8th 0.5 10 - 2 8th 0.5 100 - 3 8th 0.5 250 - 4 8th 0.5 1000 - 5 8th 1.5 15 - 6 8th 1.5 60 - 7 8th 1.5 140 - 8th 8th 3.0 30 - 9 8th 3.0 100 - 10 8th 5.5 80 - 11 8th 5.5 120 - 12 8th 5.5 250 - 13 7 9.0 100 - 14 7 9.0 160 - 15 7 14.0 140 - 16 7 18.0 40 - 17 7 18.0 100 - 18 7 18.0 250 - 19 8th 0.5 250 250 20 8th 5.5 250 250 21 7 18.0 250 250 250
  • test containers After completion of the five-month test period, the test containers are removed from the oven, cooled to room temperature, taken the test specimens from the respective test containers, dried, cut open and the cut surface is examined by appropriate optical microscopy.
  • Alloys 1 and 2 showed over the entire area of the drinking water ordinance tested in hot aging an outstanding formation of a protective, adherent, closed covering layer required for copper alloys which has a thickness of at least 2 ⁇ m in the hot aging test and thus an improved covering layer with respect to a conventional lead-containing copper alloy based on a CuSnZn alloy (eg CuSn5Zn5Pb). Furthermore, this layer is virtually free of defects or defects and thus unfolds their full protection by avoiding a deeper, local corrosion attack (see Fig. 4 and Fig. 6 ).
  • Fig. 4 shows the behavior of the cover layer formation of a lead-free copper alloys (alloy 1 and alloy 2) used according to the invention after a five-month hot aging test for the respective test waters. It turns out that it only comes to the formation of a protective topcoat. There is no visible selective corrosion attack.
  • the thickness of the formed, adherent, protective cover layer is at least 4 microns.
  • FIG. 5 is a photograph of the standard brass (CuZn40Pb2) microstructure as a result of an exemplary corrosive attack after the 5 month hot aging test, based on Turner, with a chloride content of 250 mg / l and a carbonate hardness of 5.5 ° dH.
  • a non-uniform, partially disturbed structure of the cover layer and the selective corrosion attack in the form of a dezincification is clearly visible.
  • FIG. 6 a photograph of the microstructure of a result of the five-month hot aging test, based on Turner, with a chloride content of 250 mg / l and a carbonate hardness of 5.5 ° dH, on an inventive component of the alloy 2 (Alloy 1 shows an analogous behavior ) was carried out.
  • microstructure shows in the component according to the invention after an identical heat aging test no selective corrosion attack, but a uniform, homogeneous structure of a protective, adherent cover layer with a thickness of 4 microns to 23 microns.
  • the alloy in the hot aging test carried out here is free from selective corrosion attacks (eg dezincification and stress corrosion cracking) and almost all other corrosion phenomena.
  • Fig. 7 represents a thermal analysis in a temperature-time diagram, which can be used to detect thermal effects on metals (for example, release of latent heat), which can occur in solid-to-liquid or phase-to-solid phase transformations.
  • Plotted is the cooling temperature of the alloy and the first time derivative of the measurement signal against the time, which is described as the cooling rate.
  • a change in the peak in the cooling rate curve corresponds to a thermal effect in the material.
  • sulfide formation should be aimed for shortly before the end of solidification at low temperature, since in this way the sulfides, like the lead, are distributed more homogeneously in the microstructure.
  • the cooling rate in Fig. 7 corresponds to the typical solidification process of a copper-tin alloy to 5 wt .-% tin in sand casting.
  • alloy 3 at about 400 s, an early thermal effect occurs during the course of solidification, which is due to sulfide formation.
  • the sulfide formation takes place delayed, shortly before the end of the solidification.
  • the fact that both samples have been cooled under identical conditions is underpinned by the further cooling rate profile of the samples, which is identical after phase formation.
  • the varying time of phase formation is thus due to the different zinc content in the alloys.
  • Early sulfide formation affects the sulfide form and distribution in the microstructure.
  • the early formation of sulfide in alloy 3 leads to a heterogeneous, partial phase distribution, which adversely affects the mechanical characteristics such as elongation.
  • the material composition is adjusted in a way that avoids premature sulfide formation and promotes homogeneous distribution.
  • Des shimmer was recognized that the cooling conditions of the melt to a component according to the invention, have an influence on the sulfide formation.
  • a high cooling rate which is preferred for a thin wall, results in a fine-meshed dendritic network with fine residual melt areas, from which a globular formation of the sulfides is supported.
  • rapid cooling is preferred according to the invention.
  • Fig. 10 and Fig. 11 shows micrographs of components according to the invention of an identical melt which has been cooled under varying conditions. In a rapid cooling, the micrograph in Fig. 11 a structure that leads to higher mechanical characteristics, such as tensile strength, elongation at break and the like.
  • the particles were examined and characterized by means of image analysis on microstructures of the test specimens.
  • the volume of sulfides and the surface area can be determined by means of this image analysis.
  • the alloys used in accordance with the invention can be characterized by a surface area factor ASP% of less than 1000.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Domestic Plumbing Installations (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Contacts (AREA)
EP17151949.9A 2016-03-29 2017-01-18 Composant pour des canalisations d'eau ou de gaz acheminant des milieux comprenant un alliage de cuivre Active EP3225707B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL17151949T PL3225707T3 (pl) 2016-03-29 2017-01-18 Element konstrukcyjny do prowadzących media przewodów gazowych lub wodociągowych, zawierający stop miedzi
RU2018137812A RU2712161C1 (ru) 2016-03-29 2017-03-28 Конструктивный элемент для средопроводящих газо- или водопроводов
PCT/EP2017/000374 WO2017167441A2 (fr) 2016-03-29 2017-03-28 Pièce pour conduites de gaz ou d'eau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202016101661.4U DE202016101661U1 (de) 2016-03-29 2016-03-29 Bauteil für medienführende Gas- oder Wasserleitungen

Publications (2)

Publication Number Publication Date
EP3225707A1 true EP3225707A1 (fr) 2017-10-04
EP3225707B1 EP3225707B1 (fr) 2020-12-30

Family

ID=57838272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17151949.9A Active EP3225707B1 (fr) 2016-03-29 2017-01-18 Composant pour des canalisations d'eau ou de gaz acheminant des milieux comprenant un alliage de cuivre

Country Status (6)

Country Link
EP (1) EP3225707B1 (fr)
DE (1) DE202016101661U1 (fr)
DK (1) DK3225707T3 (fr)
PL (1) PL3225707T3 (fr)
RU (1) RU2712161C1 (fr)
WO (1) WO2017167441A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018004702A1 (de) * 2018-06-12 2019-12-12 Gebr. Kemper Gmbh + Co. Kg Metallwerke Formteile aus einer korrosionsbeständigen und zerspanbaren Kupferlegierung
US20220016693A1 (en) * 2019-03-11 2022-01-20 Rehau Ag + Co. Method for producing metal components and metal component produced in this way

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT520560B1 (de) * 2018-01-29 2019-05-15 Miba Gleitlager Austria Gmbh Mehrschichtgleitlagerelement
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
AT522440B1 (de) 2019-05-07 2020-11-15 Miba Gleitlager Austria Gmbh Mehrschichtgleitlagerelement
DE202020107328U1 (de) 2020-12-17 2022-03-18 REHAU Industries SE & Co. KG Rohrverbindung und Verbindungselement zur Herstellung einer Rohrverbindung
DE102021106229A1 (de) 2020-12-17 2022-06-23 REHAU Industries SE & Co. KG Verbindungselementsystem zur Herstellung einer Rohrverbindung, dieses umfassende Rohrverbindung sowie Verfahren zur Herstellung einer solchen Rohrverbindung
WO2022128789A1 (fr) 2020-12-17 2022-06-23 REHAU Industries SE & Co. KG Système d'éléments de raccordement pour la production d'un raccordement de tubes, raccordement de tubes comprenant ce dernier, et procédé de production d'un raccordement de tubes de ce type
DE102021110302A1 (de) * 2021-04-22 2022-10-27 Ks Gleitlager Gmbh Kupfer-Zinn-Stranggusslegierung
DE102023000334A1 (de) 2023-02-03 2024-08-08 Wieland-Werke Aktiengesellschaft Kupferlegierung, Halbzeug und elektrisches Verbindungselement aus einer Kupferlegierung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1798298A1 (fr) 2005-12-14 2007-06-20 Gebr. Kemper GmbH + Co. KG Metallwerke Utilisation d'un alliage de cuivre à faible migration et pièces en cet alliage
EP2250421A1 (fr) 2008-03-07 2010-11-17 Rehau AG + Co Pièce de liaison d'un raccord à pince
US20120082588A1 (en) * 2009-05-26 2012-04-05 Biwalite Co., Ltd. Lead-free copper alloy for casting with excellent mechanical properties
JP2013199699A (ja) * 2012-03-26 2013-10-03 Furukawa Electric Co Ltd:The 無鉛快削りん青銅展伸材、銅合金部品および無鉛快削りん青銅展伸材の製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1694676A1 (ru) * 1989-03-01 1991-11-30 Московский институт стали и сплавов Сплав на основе меди
DE4404194C2 (de) * 1994-02-10 1996-04-18 Reinecke Alfred Gmbh & Co Kg Trinkwasserführende Armatur aus Metall, insbesondere aus Kupfer und dessen Legierungen mit Anteilen an Zink und Blei

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1798298A1 (fr) 2005-12-14 2007-06-20 Gebr. Kemper GmbH + Co. KG Metallwerke Utilisation d'un alliage de cuivre à faible migration et pièces en cet alliage
EP2250421A1 (fr) 2008-03-07 2010-11-17 Rehau AG + Co Pièce de liaison d'un raccord à pince
US20120082588A1 (en) * 2009-05-26 2012-04-05 Biwalite Co., Ltd. Lead-free copper alloy for casting with excellent mechanical properties
US8470101B2 (en) 2009-05-26 2013-06-25 Shiga Valve Cooperative Lead-free copper alloy for casting with excellent mechanical properties
JP2013199699A (ja) * 2012-03-26 2013-10-03 Furukawa Electric Co Ltd:The 無鉛快削りん青銅展伸材、銅合金部品および無鉛快削りん青銅展伸材の製造方法

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
ABE HIROYUKI ET AL: "Castability and cutting conditions of sulfide dispersed lead free bronze castings", CHUZO KOGAKU - JOURNAL OF JAPAN FOUNDRY ENGINEERING SOC, NIHON CHUZO KOGAKUKAI, TOKYO, JP, vol. 81, no. 12, 1 January 2009 (2009-01-01), pages 661 - 666, XP009179260, ISSN: 1342-0429 *
MARUYAMA TORU ET AL: "Casting structure, mechanical properties and machinability with changes in amount of alloyed elements of sulfide dispersed lead free bronze castings", CHUZO KOGAKU - JOURNAL OF JAPAN FOUNDRY ENGINEERING SOC, NIHON CHUZO KOGAKUKAI, TOKYO, JP, vol. 81, no. 12, 1 January 2009 (2009-01-01), pages 667 - 673, XP009179259, ISSN: 1342-0429 *
THE INFLUENCE OF WATER COMPOSITION ON THE DEZINCIFICATION OF DUPLEX BRASS FITTINGS, 1965
TURNER, THE INFLUENCE OF WATER COMPOSITION ON THE DEZINCIFICATION OF DUPLEX BRASS FITTINGS, 1965
UNTERSUCHUNGEN VON ENTZINKUNGSERSCHEINUNGEN AN FITTINGS AUS KUPFERLEGIERUNGEN, 1966

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018004702A1 (de) * 2018-06-12 2019-12-12 Gebr. Kemper Gmbh + Co. Kg Metallwerke Formteile aus einer korrosionsbeständigen und zerspanbaren Kupferlegierung
EP3581667A2 (fr) 2018-06-12 2019-12-18 Gebr. Kemper GmbH + Co. KG Metallwerke Pièces moulées d'un alliage de cuivre résistant à la corrosion et pouvant être usiné
EP3581667A3 (fr) * 2018-06-12 2020-06-17 Gebr. Kemper GmbH + Co. KG Metallwerke Pièces moulées d'un alliage de cuivre résistant à la corrosion et pouvant être usiné
US20220016693A1 (en) * 2019-03-11 2022-01-20 Rehau Ag + Co. Method for producing metal components and metal component produced in this way

Also Published As

Publication number Publication date
DK3225707T3 (da) 2021-04-06
RU2712161C1 (ru) 2020-01-24
DE202016101661U1 (de) 2017-06-30
PL3225707T3 (pl) 2021-07-19
EP3225707B1 (fr) 2020-12-30
WO2017167441A2 (fr) 2017-10-05
WO2017167441A3 (fr) 2018-03-01

Similar Documents

Publication Publication Date Title
EP3225707B1 (fr) Composant pour des canalisations d'eau ou de gaz acheminant des milieux comprenant un alliage de cuivre
DE69835912T2 (de) Automatenlegierung auf Kupferbasis.
DE69832097T2 (de) Bleifreie automatenkupferlegierung
EP1817438B1 (fr) Alliage de cuivre peu sensible aux migrations
EP2964798B1 (fr) Alliage cuivre-zinc pour une robinetterie sanitaire, et procédé de fabrication de ladite robinetterie
EP2742161B1 (fr) Alliage de cuivre zinc
EP1439238B1 (fr) Alliage de laiton résistant à la corrosion pour pièces en contact avec l'eau potable
EP3736350A1 (fr) Élément de palier coulissant multicouche
WO2017084731A1 (fr) Alliage de cuivre, nickel et zinc et son utilisation
EP3374533B1 (fr) Alliage de laiton à haute résistance et produit d'alliage de laiton à haute résistance
DE102012013817A1 (de) Formteile aus korrosionsbeständigen Kupferlegierungen
DE112014002690T5 (de) Kupferlegierung
DE4121994A1 (de) Kupfer-nickel-zinn-legierung, verfahren zu ihrer behandlung sowie ihre verwendung
DE4233668C2 (de) Korrosionsfeste Legierung auf Kupferbasis
EP0642596B1 (fr) Alliage de laiton
EP3581667B1 (fr) Pièces moulées d'un alliage de cuivre résistant à la corrosion et pouvant être usiné
EP3436615A2 (fr) Pièce pour conduites de gaz ou d'eau
DE102019106131A1 (de) Verfahren zur Herstellung von Bauteilen für medienführende Gas- oder Wasserleitungen sowie dadurch hergestelltes Bauteil
WO2020182846A1 (fr) Procédé pour produire des éléments métalliques et élément métallique produit au moyen de ce procédé
EP0572959A1 (fr) Alliage de laiton
DE4318377C2 (de) Messinglegierung
DE102018212942B4 (de) Verfahren zum Erzeugen einer Schmelze einer Kupfergusslegierung und Gussstück, hergestellt aus dieser Schmelze
WO1994024325A1 (fr) Alliage de laiton
DE2040031B2 (de) Kupfer-zinklegierung fuer druckdichte gusstuecke
DE2629491A1 (de) Kupferlegierungen mit ausgezeichneter korrosionsbestaendigkeit, verformbarkeit und verarbeitbarkeit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180404

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20181128

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200121

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GEBR. KEMPER GMBH + CO. KG, METALLWERKE

Owner name: REHAU AG + CO

Owner name: GEBERIT INTERNATIONAL AG

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

GRAL Information related to payment of fee for publishing/printing deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR3

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

INTC Intention to grant announced (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200721

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GEBR. KEMPER GMBH + CO. KG, METALLWERKE

Owner name: REHAU AG + CO

Owner name: GEBERIT INTERNATIONAL AG

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1349974

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502017008800

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20210330

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210330

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210330

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

REG Reference to a national code

Ref country code: SK

Ref legal event code: T3

Ref document number: E 37115

Country of ref document: SK

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210430

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502017008800

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20211001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502017008800

Country of ref document: DE

Owner name: REHAU INDUSTRIES SE & CO. KG, DE

Free format text: FORMER OWNERS: GEBERIT INTERNATIONAL AG, JONA, CH; GEBR. KEMPER GMBH + CO. KG, 57462 OLPE, DE; REHAU AG + CO, 95111 REHAU, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502017008800

Country of ref document: DE

Owner name: GEBR. KEMPER GMBH + CO. KG, DE

Free format text: FORMER OWNERS: GEBERIT INTERNATIONAL AG, JONA, CH; GEBR. KEMPER GMBH + CO. KG, 57462 OLPE, DE; REHAU AG + CO, 95111 REHAU, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502017008800

Country of ref document: DE

Owner name: GEBERIT INTERNATIONAL AG, CH

Free format text: FORMER OWNERS: GEBERIT INTERNATIONAL AG, JONA, CH; GEBR. KEMPER GMBH + CO. KG, 57462 OLPE, DE; REHAU AG + CO, 95111 REHAU, DE

REG Reference to a national code

Ref country code: LU

Ref legal event code: PD

Owner name: GEBERIT INTERNATIONAL AG; CH

Free format text: FORMER OWNER: REHAU AG + CO

Effective date: 20220329

REG Reference to a national code

Ref country code: NL

Ref legal event code: PD

Owner name: GEBERIT INTERNATIONAL AG; CH

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), ASSIGNMENT; FORMER OWNER NAME: REHAU AUTOMOTIVE SE & CO. KG

Effective date: 20220425

Ref country code: NL

Ref legal event code: HC

Owner name: GEBERIT INTERNATIONAL AG; CH

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF OWNER(S) NAME; FORMER OWNER NAME: REHAU AG + CO

Effective date: 20220425

REG Reference to a national code

Ref country code: CH

Ref legal event code: PK

Free format text: BERICHTIGUNGEN

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210430

REG Reference to a national code

Ref country code: AT

Ref legal event code: PC

Ref document number: 1349974

Country of ref document: AT

Kind code of ref document: T

Owner name: GEBERIT INTERNATIONAL AG, CH

Effective date: 20220419

Ref country code: AT

Ref legal event code: PC

Ref document number: 1349974

Country of ref document: AT

Kind code of ref document: T

Owner name: GEBR. KEMPER GMBH + CO. KG, METALLWERKE, DE

Effective date: 20220419

Ref country code: AT

Ref legal event code: PC

Ref document number: 1349974

Country of ref document: AT

Kind code of ref document: T

Owner name: REHAU INDUSTRIES SE & CO. KG, DE

Effective date: 20220419

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20220526 AND 20220601

REG Reference to a national code

Ref country code: BE

Ref legal event code: PD

Owner name: GEBERIT INTERNATIONAL AG; CH

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), OTHER; FORMER OWNER NAME: GEBERIT INTERNATIONAL AG

Effective date: 20220414

REG Reference to a national code

Ref country code: SK

Ref legal event code: TE4A

Ref document number: E 37115

Country of ref document: SK

Owner name: REHAU INDUSTRIES SE & CO. KG, REHAU, DE

Effective date: 20230124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20170118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

REG Reference to a national code

Ref country code: LU

Ref legal event code: HC

Owner name: GEBR. KEMPER GMBH + CO. KG, METALLWERKE; DE

Free format text: FORMER OWNER: REHAU INDUSTRIES SE & CO. KG

Effective date: 20230828

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SK

Payment date: 20231122

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231121

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20231215

Year of fee payment: 8

Ref country code: NL

Payment date: 20231213

Year of fee payment: 8

Ref country code: LU

Payment date: 20231213

Year of fee payment: 8

Ref country code: IE

Payment date: 20231213

Year of fee payment: 8

Ref country code: FR

Payment date: 20231024

Year of fee payment: 8

Ref country code: DK

Payment date: 20231215

Year of fee payment: 8

Ref country code: CZ

Payment date: 20231122

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20231121

Year of fee payment: 8

Ref country code: BE

Payment date: 20231213

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20231213

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240131

Year of fee payment: 8

Ref country code: CH

Payment date: 20240201

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240130

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201230