WO2024052221A1 - Bleifreie messinglegierung und daraus hergestelltes maschinenelement - Google Patents

Bleifreie messinglegierung und daraus hergestelltes maschinenelement Download PDF

Info

Publication number
WO2024052221A1
WO2024052221A1 PCT/EP2023/074002 EP2023074002W WO2024052221A1 WO 2024052221 A1 WO2024052221 A1 WO 2024052221A1 EP 2023074002 W EP2023074002 W EP 2023074002W WO 2024052221 A1 WO2024052221 A1 WO 2024052221A1
Authority
WO
WIPO (PCT)
Prior art keywords
lead
weight
brass alloy
free brass
alloy according
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.)
Ceased
Application number
PCT/EP2023/074002
Other languages
German (de)
English (en)
French (fr)
Inventor
Florian Seuss
Patrick Feldner
Volker Bräutigam
Alexander Dehnelt
Sven Reimus
Miroslava Sakaliyska
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.)
VDM Metals International GmbH
Diehl Brass Solutions Stiftung and Co KG
Original Assignee
VDM Metals International GmbH
Diehl Brass Solutions Stiftung 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 VDM Metals International GmbH, Diehl Brass Solutions Stiftung and Co KG filed Critical VDM Metals International GmbH
Priority to KR1020257007730A priority Critical patent/KR20250053089A/ko
Priority to EP23767827.1A priority patent/EP4584407A1/de
Priority to JP2025514636A priority patent/JP2025529999A/ja
Priority to CN202380062475.0A priority patent/CN119790174A/zh
Publication of WO2024052221A1 publication Critical patent/WO2024052221A1/de
Priority to US19/069,297 priority patent/US20250197971A1/en
Priority to MX2025002757A priority patent/MX2025002757A/es
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • C22C9/04—Alloys based on copper with zinc as the next major constituent

Definitions

  • the invention relates to a lead-free brass alloy.
  • the invention is therefore based on the object of providing a lead-free brass alloy that is easy to machine.
  • the brass alloy according to the invention contains: 55 to 59% by weight of Cu, 2.0 to 2.5% by weight of Mn, 0.65 to 1.5% by weight of Si, less than 0.1% by weight of Pb, the balance Zn and unavoidable contamination.
  • the brass alloy according to the invention has less than 0.1% by weight of Pb and is therefore considered lead-free. It has been shown that the brass alloy according to the invention shows satisfactory machinability despite the low lead content of less than 0.1% by weight. In particular, no unwanted long spiral chips are formed during machining. In addition, the friction properties of the lead-free brass alloy according to the invention are comparable to those of a lead-containing brass alloy.
  • An advantageous embodiment of the invention provides that the ratio of the weight percent of Mn to Si corresponds to the inequality 2.0 ⁇ Mn/Si ⁇ 2.9. It has been found that this ratio between manganese and silicon leads to an optimal chemical composition and the formation of manganese silicides.
  • the copper equivalent is 53 to 66%.
  • the lead-free brass alloy according to the invention preferably contains less than 0.2% by weight of Fe.
  • the lead-free brass alloy according to the invention preferably contains less than 0.5% by weight of Sn.
  • the lead-free brass alloy according to the invention preferably contains 1.5 to 2.6% by weight of Ni.
  • composition of the lead-free brass alloy according to the invention is particularly preferred: 57% by weight Cu, 2.3% by weight Mn, 1.0% by weight Si, 0.1% by weight Fe, 0.1% by weight Sn, 2 .0% by weight Ni, less than 0.1% by weight Pb, balance Zn and unavoidable impurities.
  • a preferred embodiment of the invention provides that the lead-free brass alloy contains less than 0.1% by weight of Al.
  • the lead-free brass alloy can also contain less than 0.25% by weight of Cr and/or less than 0.25% by weight of Ti and/or less than 0.25% by weight of Co.
  • the invention relates to a machine element which is made from the lead-free brass alloy according to the invention. Due to its good friction properties, the lead-free brass alloy is ideal for the production of machine elements that are used with a lubricant.
  • the invention is explained below using an exemplary embodiment with reference to the drawings.
  • the drawings are schematic representations and show:
  • Fig. 2 shows a chip image produced by machining a lead-free brass alloy according to the invention.
  • An embodiment of the lead-free brass alloy has the following composition: 57% by weight Cu; 2.3% by weight Mn; 1.0% by weight Si; 0.1% by weight Fe; 0.1% by weight Sn; 2.0% by weight Ni; less than 0.1% by weight Pb; Rest of Zn and unavoidable impurities.
  • the copper equivalent (CuEq) of the lead-free brass alloy is between 53% and 66% and can be calculated based on the alloy components as follows:
  • Ni wt% nickel
  • the lead-free brass alloy can be made into semi-finished products such as plates, pipes or bars, which can be used to make machine elements that are used with a lubricant.
  • semi-finished products such as plates, pipes or bars
  • An example of this are components of axial piston pumps subjected to friction.
  • the lead-free brass alloy contains manganese silicides, which are responsible for the good friction properties.
  • the machinability of the lead-free brass alloy is compared with a reference alloy.
  • the table below shows the compositions of the lead-free brass alloy and the reference alloy:
  • Fig. 1 shows the chip pattern of the lead-containing reference alloy
  • Fig. 2 shows the chip pattern of the lead-free brass alloy in comparison. It can be seen that both alloys produce chips of approximately the same size and type. The chip quality of the lead-free brass alloy is therefore okay.
  • the coefficient of friction was determined in identical tests for both alloys. It was found that both the lead-free brass alloy and the lead-containing reference alloy have almost identical coefficients of friction. The coefficient of friction is approximately 0.012. These tests have shown that the lead-free brass alloy can be used as a replacement for the lead-containing reference alloy without any restrictions.
  • the lead-free brass alloy can be used for the production of various machine elements, especially machine elements that are subjected to friction and are used with a lubricant.
  • machine elements especially machine elements that are subjected to friction and are used with a lubricant.
  • An example of this are components of axial piston pumps or sliding shoes.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Conductive Materials (AREA)
  • Sliding-Contact Bearings (AREA)
PCT/EP2023/074002 2022-09-08 2023-09-01 Bleifreie messinglegierung und daraus hergestelltes maschinenelement Ceased WO2024052221A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020257007730A KR20250053089A (ko) 2022-09-08 2023-09-01 무연 황동 합금 및 이것으로 제조된 기계 요소
EP23767827.1A EP4584407A1 (de) 2022-09-08 2023-09-01 Bleifreie messinglegierung und daraus hergestelltes maschinenelement
JP2025514636A JP2025529999A (ja) 2022-09-08 2023-09-01 無鉛真鍮合金およびそれから製造される機械部品
CN202380062475.0A CN119790174A (zh) 2022-09-08 2023-09-01 无铅黄铜合金及由其制备的机器元件
US19/069,297 US20250197971A1 (en) 2022-09-08 2025-03-04 Lead-free brass alloy and machine element produced therefrom
MX2025002757A MX2025002757A (es) 2022-09-08 2025-03-07 Aleacion de laton sin plomo y elemento de maquina producido a partir de la misma

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022122831.2 2022-09-08
DE102022122831.2A DE102022122831A1 (de) 2022-09-08 2022-09-08 Bleifreie Messinglegierung und daraus hergestelltes Maschinenelement

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US19/069,297 Continuation US20250197971A1 (en) 2022-09-08 2025-03-04 Lead-free brass alloy and machine element produced therefrom

Publications (1)

Publication Number Publication Date
WO2024052221A1 true WO2024052221A1 (de) 2024-03-14

Family

ID=87974552

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/074002 Ceased WO2024052221A1 (de) 2022-09-08 2023-09-01 Bleifreie messinglegierung und daraus hergestelltes maschinenelement

Country Status (8)

Country Link
US (1) US20250197971A1 (https=)
EP (1) EP4584407A1 (https=)
JP (1) JP2025529999A (https=)
KR (1) KR20250053089A (https=)
CN (1) CN119790174A (https=)
DE (1) DE102022122831A1 (https=)
MX (1) MX2025002757A (https=)
WO (1) WO2024052221A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN121250177A (zh) * 2025-10-16 2026-01-02 浙江海亮股份有限公司 一种耐蚀易切削黄铜合金、制备方法及应用

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2009122A1 (de) 2007-06-28 2008-12-31 Wieland-Werke Ag Kupfer-Zink-Legierung, Verfahren zur Herstellung und Verwendung
CN102925743A (zh) * 2012-11-12 2013-02-13 宁波博威合金材料股份有限公司 一种无铅耐磨铜合金及其制备方法
US20140248175A1 (en) * 2011-09-30 2014-09-04 Poongsan Corporation Leadless free-cutting copper alloy and method for producing the same
WO2016045770A1 (de) 2014-09-25 2016-03-31 Wieland-Werke Ag Elektrisches verbindungselement
EP3269835A1 (de) 2014-05-16 2018-01-17 Otto Fuchs - Kommanditgesellschaft - Sondermessinglegierung und legierungsprodukt
EP3272888A1 (de) 2016-07-21 2018-01-24 Wieland-Werke AG Werkstoff aus einer kupfer-zink-legierung, verfahren zur herstellung eines solchen werkstoffs und gleitelement aus einem solchen werkstoff

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63130738A (ja) * 1986-11-20 1988-06-02 Nippon Mining Co Ltd 快削銅合金
JP5253440B2 (ja) * 2010-03-01 2013-07-31 大同メタル工業株式会社 内燃機関用過給機のすべり軸受

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2009122A1 (de) 2007-06-28 2008-12-31 Wieland-Werke Ag Kupfer-Zink-Legierung, Verfahren zur Herstellung und Verwendung
US20140248175A1 (en) * 2011-09-30 2014-09-04 Poongsan Corporation Leadless free-cutting copper alloy and method for producing the same
CN102925743A (zh) * 2012-11-12 2013-02-13 宁波博威合金材料股份有限公司 一种无铅耐磨铜合金及其制备方法
EP3269835A1 (de) 2014-05-16 2018-01-17 Otto Fuchs - Kommanditgesellschaft - Sondermessinglegierung und legierungsprodukt
WO2016045770A1 (de) 2014-09-25 2016-03-31 Wieland-Werke Ag Elektrisches verbindungselement
EP3272888A1 (de) 2016-07-21 2018-01-24 Wieland-Werke AG Werkstoff aus einer kupfer-zink-legierung, verfahren zur herstellung eines solchen werkstoffs und gleitelement aus einem solchen werkstoff

Also Published As

Publication number Publication date
KR20250053089A (ko) 2025-04-21
CN119790174A (zh) 2025-04-08
JP2025529999A (ja) 2025-09-09
EP4584407A1 (de) 2025-07-16
US20250197971A1 (en) 2025-06-19
DE102022122831A1 (de) 2024-03-14
MX2025002757A (es) 2025-05-02

Similar Documents

Publication Publication Date Title
EP2009122B1 (de) Kupfer-Zink-Legierung, Verfahren zur Herstellung und Verwendung
DE102007029991A1 (de) Kupfer-Zink-Legierung, Verfahren zur Herstellung und Verwendung
EP3529389B1 (de) Kupfer-zink-legierung
DE69800106T2 (de) Korrosionsbeständige, hochfeste Kupferlegierung mit guter Stanzbarkeit
DE69709610T2 (de) Kupfer-Nickel-Beryllium Legierung
WO2024052221A1 (de) Bleifreie messinglegierung und daraus hergestelltes maschinenelement
EP3992317A1 (de) Bleifreie cu-zn-basislegierung
DE3908513C2 (https=)
DE102013005158A1 (de) Kupferlegierung
DE102013014502A1 (de) Kupferlegierung
EP2625300B1 (de) Kupferlegierung
EP4123042A1 (de) Bleifreie messinglegierung und verwendung derselben
EP3992320A1 (de) Bleifreie cu-zn-legierung
DE2949931B2 (de) Gleit- und Reibpaarung für Maschinenteile in der chemischen und Nahrungsmittel-Industrie sowie deren Verwendung
DE69807559T3 (de) Legierung auf Titanbasis
DE60209590T2 (de) Automatenstahl
DE910309C (de) Eisen- und Stahllegierungen mit guter Bearbeitbarkeit durch Schneidwerkzeuge
EP4273285B1 (de) Knetlegierung für einen lagerwerkstoff
WO2024052220A1 (de) Bleifreie messinglegierung und daraus hergestelltes lagerbauteil
EP1980633B1 (de) Verwendung einer Bronzelegierung für ein Schneckenzahnrad
EP1098009B2 (de) Verfahren zur Herstellung einer Aluminiumknetlegierung des Typs AlMgSi mit Sn und Mn
DE102022002927B4 (de) Knetwerkstoff aus einer Kupfer-Zink- Legierung, Halbzeug aus einemKnetwerkstoff und Verfahren zur Herstellung von solchem Halbzeug
EP3041966B1 (de) Kupferlegierung, die eisen und phosphor enthält
DE102014208460B4 (de) VERSCHLEIßFESTE LEGIERUNG MIT KOMPLEXER MIKROSTRUKTUR
DE102013014500A1 (de) Kupferlegierung

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23767827

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 202380062475.0

Country of ref document: CN

ENP Entry into the national phase

Ref document number: 20257007730

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2025514636

Country of ref document: JP

Ref document number: MX/A/2025/002757

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 2023767827

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 202380062475.0

Country of ref document: CN

ENP Entry into the national phase

Ref document number: 2023767827

Country of ref document: EP

Effective date: 20250408

WWP Wipo information: published in national office

Ref document number: 1020257007730

Country of ref document: KR

WWP Wipo information: published in national office

Ref document number: MX/A/2025/002757

Country of ref document: MX

WWP Wipo information: published in national office

Ref document number: 2023767827

Country of ref document: EP