WO2009047919A1 - Lead-free free-cutting brass excelling in castability - Google Patents

Lead-free free-cutting brass excelling in castability Download PDF

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Publication number
WO2009047919A1
WO2009047919A1 PCT/JP2008/050145 JP2008050145W WO2009047919A1 WO 2009047919 A1 WO2009047919 A1 WO 2009047919A1 JP 2008050145 W JP2008050145 W JP 2008050145W WO 2009047919 A1 WO2009047919 A1 WO 2009047919A1
Authority
WO
WIPO (PCT)
Prior art keywords
free
castability
lead
excelling
cutting brass
Prior art date
Application number
PCT/JP2008/050145
Other languages
French (fr)
Japanese (ja)
Inventor
Toru Uchida
Original Assignee
Toto Ltd.
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 Toto Ltd. filed Critical Toto Ltd.
Priority to JP2009536980A priority Critical patent/JP5454144B2/en
Priority to US12/308,966 priority patent/US8968492B2/en
Priority to PCT/JP2008/067853 priority patent/WO2009048008A1/en
Priority to EP08838524.0A priority patent/EP2196549B1/en
Priority to CN200880000406.2A priority patent/CN101541986B/en
Priority to TW097147832A priority patent/TWI452153B/en
Publication of WO2009047919A1 publication Critical patent/WO2009047919A1/en
Priority to JP2013062338A priority patent/JP5454719B2/en
Priority to JP2014001996A priority patent/JP5858056B2/en
Priority to US14/603,859 priority patent/US9963764B2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/005—Particular materials for seats or closure elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Contacts (AREA)
  • Domestic Plumbing Installations (AREA)
  • Conductive Materials (AREA)

Abstract

A brass that not containing lead, excels in cutting performance, castability, mechanical properties, etc. This brass is characterized by having a crystal structure wherein the ratio of the sum of α-phase and β-phase is 85% or higher and containing 55 to less than 75 wt.% of Cu, 0.3 to 4.0 wt.% of Bi, and amounts of B and Si satisfying the relationships of, providing that the amounts of B and Si are referred to as y wt.% and x wt.%, respectively, 0≤x≤2.0, 0≤y≤0.3 and y > -0.15x + 0.015ab (wherein when 0.3≤Bi<1 wt.%, 1≤Bi<2 wt.% and 2≤Bi≤4 wt.%, a is 0.2, 0.75 and 1, respectively, and when the apparent Zn content is 37 to below 39 wt.% or 39 to below 41 wt.%, b is 1 while when the apparent Zn content is 41 to below 43 wt.% or 43 to 45 wt.%, b is 0.75) together with the balance substantially consisting of Zn and unavoidable impurities.
PCT/JP2008/050145 2007-10-10 2008-01-09 Lead-free free-cutting brass excelling in castability WO2009047919A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP2009536980A JP5454144B2 (en) 2007-10-10 2008-10-01 Lead-free free-cutting brass with excellent castability
US12/308,966 US8968492B2 (en) 2007-10-10 2008-10-01 Lead-free free-machining brass having improved castability
PCT/JP2008/067853 WO2009048008A1 (en) 2007-10-10 2008-10-01 Lead-free, free-machining brass having excellent castability
EP08838524.0A EP2196549B1 (en) 2007-10-10 2008-10-01 Lead-free, free-machining brass having excellent castability
CN200880000406.2A CN101541986B (en) 2007-10-10 2008-10-01 Lead-free, free-machining brass having excellent castability
TW097147832A TWI452153B (en) 2008-01-09 2008-12-09 Excellent lead-free quick-brushed brass
JP2013062338A JP5454719B2 (en) 2007-10-10 2013-03-25 Lead-free free-cutting brass with excellent castability
JP2014001996A JP5858056B2 (en) 2007-10-10 2014-01-08 Lead-free free-cutting brass with excellent castability
US14/603,859 US9963764B2 (en) 2007-10-10 2015-01-23 Lead-free free-machining brass having improved castability

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007264490 2007-10-10
JP2007-264490 2007-10-10

Publications (1)

Publication Number Publication Date
WO2009047919A1 true WO2009047919A1 (en) 2009-04-16

Family

ID=40549070

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050145 WO2009047919A1 (en) 2007-10-10 2008-01-09 Lead-free free-cutting brass excelling in castability

Country Status (2)

Country Link
CN (2) CN101407872A (en)
WO (1) WO2009047919A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015010768A1 (en) * 2013-07-24 2015-01-29 Wieland-Werke Ag Grain-refined copper casting alloy with iron and boron
CN104357699A (en) * 2014-09-29 2015-02-18 苏州有色金属研究院有限公司 Tin removal refining agent and use thereof
US10287653B2 (en) 2013-03-15 2019-05-14 Garrett Transportation I Inc. Brass alloys for use in turbocharger bearing applications

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102071336B (en) * 2011-01-11 2013-01-16 宁波兴敖达金属新材料有限公司 Easy-to-cut anticorrosion lead-free silicon bismuth brass alloy
WO2015046470A1 (en) * 2013-09-26 2015-04-02 三菱伸銅株式会社 Copper alloy
DE102016002604A1 (en) * 2016-03-03 2017-09-07 Wieland-Werke Ag Tin-containing copper alloy, process for their preparation and their use

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08503520A (en) * 1992-06-02 1996-04-16 イデアル−スタンダード ゲゼルシャフト ミット ベシュレンクテル ハフツング Brass alloy
JP2003277855A (en) * 2002-03-22 2003-10-02 San-Etsu Metals Co Ltd Lead-free, free-cutting brass alloy material and production method thereof
JP2005290475A (en) * 2004-03-31 2005-10-20 Dowa Mining Co Ltd Brass, its manufacturing method, and part using the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2563094C (en) * 2004-08-10 2012-03-27 Sanbo Shindo Kogyo Kabushiki Kaisha Copper-based alloy casting in which grains are refined

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08503520A (en) * 1992-06-02 1996-04-16 イデアル−スタンダード ゲゼルシャフト ミット ベシュレンクテル ハフツング Brass alloy
JP2003277855A (en) * 2002-03-22 2003-10-02 San-Etsu Metals Co Ltd Lead-free, free-cutting brass alloy material and production method thereof
JP2005290475A (en) * 2004-03-31 2005-10-20 Dowa Mining Co Ltd Brass, its manufacturing method, and part using the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10287653B2 (en) 2013-03-15 2019-05-14 Garrett Transportation I Inc. Brass alloys for use in turbocharger bearing applications
WO2015010768A1 (en) * 2013-07-24 2015-01-29 Wieland-Werke Ag Grain-refined copper casting alloy with iron and boron
EP3260561A1 (en) * 2013-07-24 2017-12-27 Wieland-Werke AG Grain refinement of copper zinc silicon casting alloys with iron and boron
CN104357699A (en) * 2014-09-29 2015-02-18 苏州有色金属研究院有限公司 Tin removal refining agent and use thereof
CN104357699B (en) * 2014-09-29 2016-06-15 苏州有色金属研究院有限公司 A kind of except stannum refining agent and application thereof

Also Published As

Publication number Publication date
CN101407872A (en) 2009-04-15
CN101541986B (en) 2011-11-02
CN101541986A (en) 2009-09-23

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