WO2009047919A1 - Lead-free free-cutting brass excelling in castability - Google Patents
Lead-free free-cutting brass excelling in castability Download PDFInfo
- 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
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 seat
- F16K25/005—Particular materials for seats or closure elements
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.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200880000406.2A CN101541986B (en) | 2007-10-10 | 2008-10-01 | Lead-free, free-machining brass having excellent 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 |
| US12/308,966 US8968492B2 (en) | 2007-10-10 | 2008-10-01 | Lead-free free-machining brass having improved castability |
| JP2009536980A JP5454144B2 (en) | 2007-10-10 | 2008-10-01 | Lead-free free-cutting brass with 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)
| 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)
| 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 |
| TWI521075B (en) * | 2013-09-26 | 2016-02-11 | 三菱伸銅股份有限公司 | 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)
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MXPA06010613A (en) * | 2004-08-10 | 2006-12-15 | Sanbo Shindo Kogyo Kabushiki K | Copper-base alloy casting with refined crystal grains. |
-
2008
- 2008-01-09 WO PCT/JP2008/050145 patent/WO2009047919A1/en active Application Filing
- 2008-07-01 CN CN 200810090868 patent/CN101407872A/en active Pending
- 2008-10-01 CN CN200880000406.2A patent/CN101541986B/en active Active
Patent Citations (3)
| 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)
| 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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