EP2467507A1 - Messinglegierung - Google Patents
MessinglegierungInfo
- Publication number
- EP2467507A1 EP2467507A1 EP10768172A EP10768172A EP2467507A1 EP 2467507 A1 EP2467507 A1 EP 2467507A1 EP 10768172 A EP10768172 A EP 10768172A EP 10768172 A EP10768172 A EP 10768172A EP 2467507 A1 EP2467507 A1 EP 2467507A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- proportion
- weight percent
- brass alloy
- alloy according
- weight
- 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
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 55
- 239000000956 alloy Substances 0.000 title claims abstract description 55
- 229910001369 Brass Inorganic materials 0.000 title claims abstract description 32
- 239000010951 brass Substances 0.000 title claims abstract description 32
- 239000011701 zinc Substances 0.000 claims abstract description 23
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 22
- 239000010949 copper Substances 0.000 claims abstract description 20
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000013078 crystal Substances 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 28
- 229910052742 iron Inorganic materials 0.000 claims description 20
- 238000005275 alloying Methods 0.000 claims description 18
- 239000011572 manganese Substances 0.000 claims description 18
- 229910052748 manganese Inorganic materials 0.000 claims description 17
- 229910052759 nickel Inorganic materials 0.000 claims description 17
- 229910052710 silicon Inorganic materials 0.000 claims description 17
- 239000011135 tin Substances 0.000 claims description 17
- 229910052718 tin Inorganic materials 0.000 claims description 17
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000011265 semifinished product Substances 0.000 claims description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 5
- 239000011574 phosphorus Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims 1
- 239000002244 precipitate Substances 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000008092 positive effect Effects 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000029142 excretion Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 206010011906 Death Diseases 0.000 description 1
- 229910001340 Leaded brass Inorganic materials 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—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 a brass alloy for use in the manufacture of semi-finished products intended for machining, the brass alloy consisting essentially of copper and zinc and having at least one additional alloying component.
- Corresponding brass alloys are often produced as semi-finished products in strip or wire form and subsequently processed into finished products. The further processing takes place frequently by application of cutting operations.
- lead When machining brass, it has proven advantageous in the past to add lead to the alloy in an amount of up to four percent by weight.
- the lead has a positive effect as a chip breaker, extends the tool life and reduces the tensile forces. Important material parameters such as strength and corrosion resistance are not adversely affected by an addition of lead.
- the object of the present invention is therefore to define a lead-free brass alloy of the aforementioned type, which achieves good machinability, adequate mechanical properties and the lowest possible wear on the cutting tools used.
- the aim of this invention is also to minimize the proportion of ecologically harmful alloying elements.
- This invention is further based on the object to achieve specific properties by the targeted combination of non-polluting alloying elements and on the manufacturing process.
- the idea is based on the inventions essential to the invention in order to achieve the desired material properties: a) The microstructure is influenced by changing the copper / zinc ratio such that an alpha / beta crystal mixture is present in which the proportion of beta phase is about 30 to 70%. Since the beta phase shows a brittle behavior under normal decomposition conditions, its increased proportion leads to a more favorable machining behavior. b) Further alloying elements serve to stabilize the alpha and the beta phase, in particular during the production process of the semifinished product. c) In addition, the chipping behavior and the mechanical properties are positively influenced by the targeted addition of further precipitates of forming elements. On the one hand excretions favor a short breaking chip.
- a fourth advantage can be achieved by influencing the arrangement or orientation of the two phases alpha and beta and / or the precipitates, so as to adjust the processing properties in a targeted manner (eg by a combination of forming or heat treatment).
- a content of lead is at most 0.1 weight percent, that the proportion of zinc 40.5 to 46 weight percent and the proportion of copper is at most 59 weight percent and that the alloy Mixed crystal with proportions of both an alpha-structure and a beta-structure, wherein the weight fraction of beta-structure is at least 30% and at most 70% and that the proportion of each additional alloying component at most 1.0 percent by weight and the sum of the shares of all additional Alloy components is at least 0.5 percent by weight.
- certain properties of the alloy are particularly desired depending on the application. For this purpose, it is envisaged to add each of the mentioned alloying elements in a higher concentration in each case, without thereby increasing the total amount of alloying elements (except copper and zinc).
- the precipitations contained in the microstructure which are also found in the soft alpha microstructure, support the chipping behavior positively.
- the alpha microstructure of the mixed crystal forms a cubic face-centered spatial structure.
- the beta-mixed crystal forms a cubic body-centered structure.
- the proportion of the beta structure is at least 50%. This is particularly supported by the fact that a zinc content of about 42 percent by weight is present.
- the elements iron and nickel have a regulative influence on the grain growth of the alpha and beta phase, with nickel additionally promoting the stabilization of the alpha structure. Too high levels lead to embrittlement of the alloy.
- the elements tin, silicon, manganese and iron stabilize and increase the proportion of the beta phase.
- phosphorus may be provided.
- a maximum proportion of phosphorus in the range of 0.1% by weight is intended.
- the content of copper is 54 to 59.0% by weight.
- the proportion of zinc is 40 to 46 weight percent.
- a first additional alloying component is defined by the proportion of iron being from 0.1 to 0.5 percent by weight. Iron is used to control the grain size of the alpha and beta phases. Contents less than 0.1% do not have a sufficient effect. Shares greater than 0.5% would lead to very large iron precipitates, which have a negative effect on the mechanical properties of the alloy.
- the proportion of iron is 0, 2 to 0, 3 weight percent.
- a second additional alloying component is defined by the proportion of nickel being from 0.1 to 0.5 percent by weight. Nickel stabilizes the alpha phase.
- the proportion of nickel is 0.2 to 0.3 weight percent.
- a third additional alloying component is defined by the proportion of silicon being 0.01 to 0.20 percent by weight. Silicon stabilizes the beta phase and together with other elements forms fine precipitates, which have a positive effect on the cutting behavior and are responsible for grain refining.
- the proportion of silicon is 0.03-0.08% by weight.
- a fourth additional alloying component is defined by the proportion of manganese being 0.01 to 0.20 percent by weight. Manganese stabilizes the beta phase and together with other elements forms fine precipitates, which have a positive effect on the cutting behavior and are responsible for grain refining.
- the proportion of manganese is 0.03 to 0.08 weight percent.
- a fifth additional alloying component is defined by the proportion of tin being from 0.1 to 0.5 percent by weight.
- the proportion of tin is from 0.2 to 0.3 percent by weight.
- Phosphor leads to an improved corrosion resistance of the alloy, in particular P also counteracts a delicacy.
- a preferred embodiment of the alloy preferably has the following percentages by weight with respect to its composition. Copper in the range of 54% to 59.5%, zinc in the range of 36% to 40.5%, iron in the range of 0.1% to 0.5%, nickel in the range of 0.1% to 0.5 %, Silicon in the range of 0.01% to 0.2%, manganese in the range of 0.01% to 0.2% and tin in the range of 0.1% to 0.5% and lead with a maximum of 0.1%.
- the lead content of the alloy is, also due to the use of scrap in the production of such alloys, max. 0.1%.
- the proportions of copper and / or zinc are optionally reduced.
- the proportion of copper is 57.0% to 57.5%, the proportion of zinc 41.9 to 42.5, the proportion of nickel 0.2% to 0.3%, the proportion of iron 0.2% to 0.3%, the proportion of silicon 0.03% to 0.08%, the proportion of manganese 0.03% to 0.08% and the proportion of tin 0.2% to 0.3 % and lead content less than 0.1%.
- the sum of the weight proportions of all other possible components is not more than 0.2%.
- compositions it is basically possible to add only some of the listed elements to the alloy. According to a very particularly preferred embodiment, however, it is envisaged to add all the above-listed elements with a weight proportion within the respectively defined intervals in combination with one another to the alloy.
- the lead content is in an interval of 0.01% to 0.1%. Due to the relationship between the alpha mixed crystal and the beta-mixed crystal according to the invention, the desired material properties can be achieved even with reduced lead contents.
- the alpha-mixed crystal leads to a relatively good deformability of the alloy and gives this tough properties.
- the Mixed crystal is relatively poorly deformable and brittle. These properties are desirable for good sparability.
- the relationship of the alpha and beta fractions according to the invention thus gives the alloy sufficient toughness to aid ductility and brittleness to aid machinability.
- a preferred production process can be carried out such that first an extrusion in a temperature range of 600 to 750 0 C is performed. This produces a microstructure which has a proportion of the beta mixed crystal of about 50 percent by weight.
- an intermediate annealing In this case, an intermediate annealing at a temperature of about 500 to 600 ° C. is carried out after a first forming step. The intermediate annealing leads to a recrystallization and thus to a Kornneu Struktur. As a result, a fine-grained microstructure is supported.
- the brass alloy of copper and zinc with a lead content of 0.01 to 0.1 percent and with at least one further alloying component.
- This further alloying component influences the microstructure of the mixed crystal in order to achieve the respective desired material properties depending on the application.
- This embodiment leads to a particularly high proportion of beta-mixed crystals between 55 and 70% beta-portion, which causes a particularly short-breaking chip.
- Another preferred embodiment is provided in terms of weight percent by the following alloy.
- the brass alloy according to the invention serves to produce so-called semi-finished products which are subjected to at least one further processing step.
- the semi-finished products are typically produced by a casting process. Typical embodiments of such semi-finished products are wires, profiles and / or rods.
- the further processing step comprises at least one machining operation.
- the further processing step may comprise a combination of shaping and machining.
- the shaping can be carried out both at room temperature and at an elevated temperature. At elevated temperatures, a half-warm temperature of up to about 450 ° Celsius and a hot-work temperature be distinguished in a range of 600 ° Celsius to 850 ° Celsius.
Landscapes
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Conductive Materials (AREA)
- Contacts (AREA)
- Secondary Cells (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10768172T PL2467507T3 (pl) | 2009-08-18 | 2010-08-17 | Stop mosiężny |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009038657A DE102009038657A1 (de) | 2009-08-18 | 2009-08-18 | Messinglegierung |
PCT/DE2010/000976 WO2011020468A1 (de) | 2009-08-18 | 2010-08-17 | Messinglegierung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2467507A1 true EP2467507A1 (de) | 2012-06-27 |
EP2467507B1 EP2467507B1 (de) | 2019-02-27 |
Family
ID=43128361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10768172.8A Active EP2467507B1 (de) | 2009-08-18 | 2010-08-17 | Messinglegierung |
Country Status (9)
Country | Link |
---|---|
US (1) | US20120207642A1 (de) |
EP (1) | EP2467507B1 (de) |
DE (2) | DE102009038657A1 (de) |
ES (1) | ES2724152T3 (de) |
HU (1) | HUE043477T2 (de) |
PL (1) | PL2467507T3 (de) |
PT (1) | PT2467507T (de) |
TR (1) | TR201906400T4 (de) |
WO (1) | WO2011020468A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011053823A1 (de) | 2011-09-21 | 2013-03-21 | Phoenix Contact Gmbh & Co. Kg | Klemmkörper für einen elektrischen Leiter |
WO2014032635A1 (de) | 2012-08-28 | 2014-03-06 | Heinrich Stamm Gmbh | Drahtelektrode zum funkenerosiven schneiden von gegenständen |
US10287653B2 (en) | 2013-03-15 | 2019-05-14 | Garrett Transportation I Inc. | Brass alloys for use in turbocharger bearing applications |
CN104087781B (zh) * | 2013-04-01 | 2016-12-28 | 台州艾迪西投资有限公司 | 一种无铋低铅黄铜合金及其制备方法 |
DE102015212937A1 (de) * | 2015-07-10 | 2017-01-12 | Aurubis Stolberg Gmbh & Co. Kg | Messinglegierung |
DE202016102696U1 (de) * | 2016-05-20 | 2017-08-29 | Otto Fuchs - Kommanditgesellschaft - | Sondermessinglegierung sowie Sondermessinglegierungsprodukt |
DE202018104958U1 (de) | 2018-08-30 | 2018-09-12 | Harting Electric Gmbh & Co. Kg | Steckverbinder mit Komponenten aus verbessertem Material |
DE102020119603A1 (de) | 2020-07-24 | 2022-01-27 | Phoenix Contact Gmbh & Co. Kg | Verfahren zum Herstellen eines wenigstens abschnittsweise aus einer Messinglegierung gebildeten Kontaktelements sowie ein Kontaktelement |
LU101955B1 (de) | 2020-07-24 | 2022-01-24 | Phoenix Contact Gmbh & Co | Verfahren zum Herstellen eines wenigstens abschnittsweise aus einer Messinglegierung gebildeten Kontaktelements sowie ein Kontaktelement |
EP3971312A1 (de) | 2020-09-17 | 2022-03-23 | Société BIC | Messinglegierung für schreibinstrumentenspitzen |
DE102020128955A1 (de) | 2020-11-03 | 2022-05-05 | Aurubis Stolberg Gmbh & Co. Kg | Messinglegierung |
DE102021102120A1 (de) | 2021-01-29 | 2022-08-04 | HME Brass Germany GmbH | Messinglegierung und Verfahren zum Herstellen eines Halbzeugs aus dieser Messinglegierung |
DE102021119474A1 (de) | 2021-07-27 | 2023-02-02 | Diehl Brass Solutions Stiftung & Co. Kg | Blei- und Antimonfreie Messinglegierung |
Family Cites Families (34)
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US1680046A (en) * | 1924-01-30 | 1928-08-07 | Victor O Homerberg | Method of treating copper alloys and improved product |
CH190142A (de) * | 1942-01-19 | 1937-04-15 | Ramesohl & Schmidt Aktiengesel | Schleudertrommel zur Austragung der Schleuderflüssigkeit mittels Schälkörpern. |
GB575316A (en) * | 1943-03-26 | 1946-02-13 | James Booth & Company 1915 Ltd | Improvements in brass |
AT179656B (de) * | 1952-09-17 | 1954-09-25 | Voest Ag | Messing mit den Gebrauchseigenschaften von Sondermessing und Verfahren zu seiner Herstellung |
DE1089555B (de) * | 1955-05-11 | 1960-09-22 | Diehl Fa | Verfahren zum Herstellen hochfester Halbzeuge aus ª‡+ª‰-Messing |
DE1151716B (de) * | 1958-07-24 | 1963-07-18 | Ver Deutsche Metallwerke Ag | Verwendung eines Loetdrahtes aus einer Sondermessinglegierung zum fluss-mittelfreien Loeten von Stahl und Stahllegierungen |
GB1285561A (en) * | 1968-10-14 | 1972-08-16 | Imp Metal Ind Kynoch Ltd | A method of treating alpha-beta brass |
AU5364573A (en) * | 1972-03-27 | 1974-09-26 | Int Nickel Ltd | Powder metallurgy forging |
DE2742008C2 (de) * | 1977-09-17 | 1983-12-29 | Diehl GmbH & Co, 8500 Nürnberg | Verfahren zur Herstellung eines Messing-Werkstoffes mit Mikroduplex-Gefüge |
DE2758822C2 (de) * | 1977-12-30 | 1987-01-15 | Diehl GmbH & Co, 8500 Nürnberg | Verfahren zur Herstellung eines Kupfer-Zink-Werkstoffes |
JPS5629643A (en) | 1979-08-16 | 1981-03-25 | Furukawa Kinzoku Kogyo Kk | Corrosion resistant free cutting brass |
JPS63128142A (ja) * | 1986-11-17 | 1988-05-31 | Nippon Mining Co Ltd | 快削銅合金 |
JPS63130738A (ja) * | 1986-11-20 | 1988-06-02 | Nippon Mining Co Ltd | 快削銅合金 |
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JPH07166279A (ja) | 1993-12-09 | 1995-06-27 | Kobe Steel Ltd | 耐食性、打抜き加工性及び切削性が優れた銅基合金及びその製造方法 |
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CN1291051C (zh) * | 2004-01-15 | 2006-12-20 | 宁波博威集团有限公司 | 无铅易切削锑黄铜合金 |
KR100631041B1 (ko) | 2005-03-04 | 2006-10-04 | 주식회사 풍산 | 절삭성 및 가공성이 우수한 쾌삭황동합금 |
CN1329539C (zh) * | 2005-06-24 | 2007-08-01 | 宁波博威集团有限公司 | 无铅易切削低锑铋黄铜合金及其制造方法 |
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CN101250641A (zh) * | 2008-03-28 | 2008-08-27 | 佛山市国鸥铜业有限公司 | 一种易切削锻造用无铅铜合金 |
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-
2009
- 2009-08-18 DE DE102009038657A patent/DE102009038657A1/de not_active Withdrawn
-
2010
- 2010-08-17 PL PL10768172T patent/PL2467507T3/pl unknown
- 2010-08-17 DE DE112010003316T patent/DE112010003316A5/de active Pending
- 2010-08-17 HU HUE10768172A patent/HUE043477T2/hu unknown
- 2010-08-17 TR TR2019/06400T patent/TR201906400T4/tr unknown
- 2010-08-17 US US13/391,195 patent/US20120207642A1/en not_active Abandoned
- 2010-08-17 EP EP10768172.8A patent/EP2467507B1/de active Active
- 2010-08-17 ES ES10768172T patent/ES2724152T3/es active Active
- 2010-08-17 PT PT10768172T patent/PT2467507T/pt unknown
- 2010-08-17 WO PCT/DE2010/000976 patent/WO2011020468A1/de active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2011020468A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20120207642A1 (en) | 2012-08-16 |
WO2011020468A1 (de) | 2011-02-24 |
DE102009038657A1 (de) | 2011-02-24 |
ES2724152T3 (es) | 2019-09-06 |
PL2467507T3 (pl) | 2019-08-30 |
PT2467507T (pt) | 2019-05-13 |
HUE043477T2 (hu) | 2019-08-28 |
DE112010003316A5 (de) | 2012-06-28 |
TR201906400T4 (tr) | 2019-05-21 |
EP2467507B1 (de) | 2019-02-27 |
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