EP4124667A1 - Alliage de laiton sans plomb et antimoine - Google Patents
Alliage de laiton sans plomb et antimoine Download PDFInfo
- Publication number
- EP4124667A1 EP4124667A1 EP22184790.8A EP22184790A EP4124667A1 EP 4124667 A1 EP4124667 A1 EP 4124667A1 EP 22184790 A EP22184790 A EP 22184790A EP 4124667 A1 EP4124667 A1 EP 4124667A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lead
- alloy
- antimony
- brass alloy
- free brass
- 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.)
- Pending
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 57
- 239000000956 alloy Substances 0.000 title claims abstract description 57
- 229910001369 Brass Inorganic materials 0.000 title claims abstract description 30
- 239000010951 brass Substances 0.000 title claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 229910052745 lead Inorganic materials 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 229910052787 antimony Inorganic materials 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052785 arsenic Inorganic materials 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims 1
- 238000009749 continuous casting Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
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
- C22C9/04—Alloys based on copper with zinc as the next major constituent
-
- 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 lead and antimony-free brass alloy.
- Pb was added in an amount of up to 4% by weight to improve the machinability of brass alloys.
- the addition of Pb is no longer permitted due to legal requirements.
- the EP 3 320 122 B1 discloses a brass alloy to which neither Pb nor Bi is added. To improve machinability, it is proposed to add 0.005 to 1.0% by weight of In to the brass alloy. Although the proposed addition of In improves machinability, relatively long spiral chips are formed during machining, which can lead to blockages during removal and to tool breakage.
- the EP 2 913 415 A1 discloses another lead and bismuth-free brass alloy which, moreover, contains no Si.
- the known alloy contains 60 to 65% by weight Cu and 0.01 to 0.15% by weight Sb.
- the EP 2 467 507 B1 discloses a lead-free brass alloy containing Fe, Ni and Sn.
- the object of the invention is to eliminate the disadvantages of the prior art.
- a lead-free and antimony-free brass alloy with improved machinability should be specified.
- the brass alloy should have low hot embrittlement, so that it can be processed by hot forming.
- [%] means percent by weight.
- the addition of 0.1 to 1.5% Mg proposed according to the invention can set the Pb content to less than 0.1% without the formation of undesirably long spiral chips during machining.
- the proposed brass alloy is characterized not only by improved chip breaking, but also by low hot embrittlement. It can be processed by hot forming.
- a "brass alloy free of lead and antimony” is understood to mean an alloy which contains less than 0.1% Pb and less than 0.001% Sb.
- the alloy can contain less than 0.15% As and/or less than 0.15% P and/or less than 0.1% Al and/or less than 0.1% Sn.
- Sn stabilizes the ⁇ solid solution.
- As leads to improved corrosion resistance of the alloy, in particular As counteracts dezincification.
- Addition of P improves the machinability of the alloy.
- it contains 57 to less than 60%, preferably 57.5 to 58.5% Cu.
- the proposed alloy is less expensive because of the relatively lower Cu contents.
- Mg more than 0.5% Mg is contained.
- the proposed Mg content contributes to improved machinability.
- the content of Pb is suitably in the range of 0.05 to 0.09%.
- the content of In is less than 0.005%.
- the Zn content is 40 to 42.5%.
- An alloy with the proposed Zn content shows good machinability.
- the proposed lead and antimony-free brass alloy also enables good processability in the continuous casting process.
- the chip images according to Figures 1 to 4 were each produced by turning alloys at a rotating speed of 850 rpm.
- An indexable insert with the identifier KNMX160405-R81C907 was used.
- the in the Figures 1 to 4 The displayed scale is 5 mm in each case.
- the first example alloy is a reference alloy.
- the first example alloy contains 58% Cu and 42% Zn, ie the first example alloy contains no addition of Mg.
- example alloy 1 when example alloy 1 is longitudinally turned, long spiral chips are formed. Such spiral chips are undesirable when machining. They can lead to blockages during transport and tool breakage.
- the second example alloy contains 58% Cu, 41.5% Zn and 0.5% Mg. It can be seen that the chips produced during longitudinal turning are shorter than those in 1 shown chips.
- FIG 3 shows a chip image after longitudinal turning of a third example alloy.
- the third example alloy consists of 58% Cu, 41% Zn and 1% Mg. It can be clearly seen that the chips produced are shorter than the chips produced by longitudinal turning of the second example alloy.
- the fourth example alloy consists of 58% Cu, 40.5% Zn and 1.5% Mg.
- the chips produced when turning the fourth example alloy are even smaller than the chips produced by longitudinal turning of the third example alloy.
- the proposed addition of 0.1 to 1.5% Mg to a lead-free and antimony-free brass alloy means that chip breaking can be significantly improved.
- the proposed brass alloy is also characterized by low hot embrittlement. It can be processed by means of hot forming, in particular in the continuous casting process.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Domestic Plumbing Installations (AREA)
- Conductive Materials (AREA)
- Contacts (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Sliding-Contact Bearings (AREA)
- Lead Frames For Integrated Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021119474.1A DE102021119474A1 (de) | 2021-07-27 | 2021-07-27 | Blei- und Antimonfreie Messinglegierung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4124667A1 true EP4124667A1 (fr) | 2023-02-01 |
Family
ID=82594778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22184790.8A Pending EP4124667A1 (fr) | 2021-07-27 | 2022-07-13 | Alliage de laiton sans plomb et antimoine |
Country Status (11)
Country | Link |
---|---|
US (1) | US20230035864A1 (fr) |
EP (1) | EP4124667A1 (fr) |
JP (1) | JP2023021941A (fr) |
KR (1) | KR20230017150A (fr) |
CN (1) | CN115679151A (fr) |
AU (1) | AU2022209210A1 (fr) |
BR (1) | BR102022014247A2 (fr) |
DE (1) | DE102021119474A1 (fr) |
IL (1) | IL295024A (fr) |
MX (1) | MX2022009224A (fr) |
ZA (1) | ZA202207823B (fr) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06179932A (ja) * | 1991-07-01 | 1994-06-28 | Nikko Kinzoku Kk | 導電性ばね用銅合金 |
JPH08176707A (ja) * | 1994-12-27 | 1996-07-09 | Sumitomo Electric Ind Ltd | ワイヤ放電加工用電極線 |
CN101161836A (zh) * | 2007-10-16 | 2008-04-16 | 中南大学 | 一种无铅易切削镁黄铜合金及其制备方法 |
EP2133437B1 (fr) | 2008-06-11 | 2011-06-15 | Xiamen LOTA International Co., Ltd | Alliage de laiton en magnésium de décolletage sans plomb et sans étain, et son procédé de fabrication |
EP2913415A1 (fr) | 2014-01-03 | 2015-09-02 | JiaXing IDC Plumbing & Heating Technology Ltd | Laiton sans plomb, sans bismuth, sans silicone |
EP2467507B1 (fr) | 2009-08-18 | 2019-02-27 | Aurubis Stolberg GmbH & Co. KG | Alliage de laiton |
EP3320122B1 (fr) | 2015-07-10 | 2020-08-12 | Aurubis Stolberg GmbH & Co. KG | Alliage de laiton |
WO2020261603A1 (fr) | 2019-06-25 | 2020-12-30 | 三菱マテリアル株式会社 | Alliage de cuivre de décolletage et procédé de fabrication d'alliage de cuivre de décolletage |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61178216A (ja) | 1985-02-01 | 1986-08-09 | Sanden Corp | 車輛用空調装置における可変容量圧縮機の制御装置 |
JPH04236734A (ja) | 1991-01-14 | 1992-08-25 | Sumitomo Metal Mining Co Ltd | Sn、Mg及びPが添加された耐腐食性に優れる黄銅 |
CN101787461B (zh) * | 2010-03-02 | 2014-11-19 | 路达(厦门)工业有限公司 | 一种环保型锰黄铜合金及其制造方法 |
JP5869422B2 (ja) * | 2012-05-09 | 2016-02-24 | サンエツ金属株式会社 | 耐高温脆性に優れた黄銅合金 |
DE102013107011A1 (de) * | 2013-07-03 | 2015-01-08 | Thyssenkrupp Steel Europe Ag | Verfahren zum Beschichten von Cu-Langprodukten mit einer metallischen Schutzschicht und mit einer metallischen Schutzschicht versehenes Cu-Langprodukt |
CN112226645B (zh) * | 2020-09-03 | 2021-11-30 | 宁波金田铜业(集团)股份有限公司 | 一种无铅易切削黄铜及其制备方法 |
-
2021
- 2021-07-27 DE DE102021119474.1A patent/DE102021119474A1/de active Pending
-
2022
- 2022-07-13 EP EP22184790.8A patent/EP4124667A1/fr active Pending
- 2022-07-14 ZA ZA2022/07823A patent/ZA202207823B/en unknown
- 2022-07-19 BR BR102022014247-5A patent/BR102022014247A2/pt unknown
- 2022-07-24 IL IL295024A patent/IL295024A/en unknown
- 2022-07-25 AU AU2022209210A patent/AU2022209210A1/en active Pending
- 2022-07-26 MX MX2022009224A patent/MX2022009224A/es unknown
- 2022-07-26 CN CN202210881217.2A patent/CN115679151A/zh active Pending
- 2022-07-26 JP JP2022119059A patent/JP2023021941A/ja active Pending
- 2022-07-27 KR KR1020220093072A patent/KR20230017150A/ko unknown
- 2022-07-27 US US17/874,712 patent/US20230035864A1/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06179932A (ja) * | 1991-07-01 | 1994-06-28 | Nikko Kinzoku Kk | 導電性ばね用銅合金 |
JPH08176707A (ja) * | 1994-12-27 | 1996-07-09 | Sumitomo Electric Ind Ltd | ワイヤ放電加工用電極線 |
CN101161836A (zh) * | 2007-10-16 | 2008-04-16 | 中南大学 | 一种无铅易切削镁黄铜合金及其制备方法 |
EP2133437B1 (fr) | 2008-06-11 | 2011-06-15 | Xiamen LOTA International Co., Ltd | Alliage de laiton en magnésium de décolletage sans plomb et sans étain, et son procédé de fabrication |
EP2467507B1 (fr) | 2009-08-18 | 2019-02-27 | Aurubis Stolberg GmbH & Co. KG | Alliage de laiton |
EP2913415A1 (fr) | 2014-01-03 | 2015-09-02 | JiaXing IDC Plumbing & Heating Technology Ltd | Laiton sans plomb, sans bismuth, sans silicone |
EP3320122B1 (fr) | 2015-07-10 | 2020-08-12 | Aurubis Stolberg GmbH & Co. KG | Alliage de laiton |
WO2020261603A1 (fr) | 2019-06-25 | 2020-12-30 | 三菱マテリアル株式会社 | Alliage de cuivre de décolletage et procédé de fabrication d'alliage de cuivre de décolletage |
EP3872198A1 (fr) | 2019-06-25 | 2021-09-01 | Mitsubishi Materials Corporation | Alliage de cuivre de décolletage et procédé de fabrication d'alliage de cuivre de décolletage |
Non-Patent Citations (3)
Title |
---|
ADINEH MORTEZA ET AL: "Microstructure, mechanical properties and machinability of Cu-Zn-Mg and Cu-Zn-Sb brass alloys", MATERIALS SCIENCE AND TECHNOLOGY, vol. 35, no. 12, 19 June 2019 (2019-06-19), GB, pages 1504 - 1514, XP093005147, ISSN: 0267-0836, Retrieved from the Internet <URL:https://www.tandfonline.com/doi/pdf/10.1080/02670836.2019.1630089?needAccess=true> DOI: 10.1080/02670836.2019.1630089 * |
HARUHIKO ATSUMI ET AL: "Fabrication and properties of high-strength extruded brass using elemental mixture of Cu40% Zn alloy powder and Mg particle", MATERIALS CHEMISTRY AND PHYSICS, ELSEVIER SA, SWITZERLAND, TAIWAN, REPUBLIC OF CHINA, vol. 135, no. 2, 6 May 2012 (2012-05-06), pages 554 - 562, XP028414791, ISSN: 0254-0584, [retrieved on 20120512], DOI: 10.1016/J.MATCHEMPHYS.2012.05.025 * |
LEE DONG-BOK ET AL: "The effect of small additions of Zr, Cr, Mg, Al, and Si on the oxidation of 6:4 brass", METALS AND MATERIALS INTERNATIONAL, vol. 8, no. 3, 31 May 2002 (2002-05-31), Seoul, pages 327 - 332, XP093005172, ISSN: 1598-9623, Retrieved from the Internet <URL:https://link.springer.com/content/pdf/10.1007/BF03186103.pdf> DOI: 10.1007/BF03186103 * |
Also Published As
Publication number | Publication date |
---|---|
BR102022014247A2 (pt) | 2023-02-07 |
CN115679151A (zh) | 2023-02-03 |
AU2022209210A1 (en) | 2023-02-16 |
US20230035864A1 (en) | 2023-02-02 |
JP2023021941A (ja) | 2023-02-14 |
MX2022009224A (es) | 2023-01-30 |
ZA202207823B (en) | 2023-04-26 |
KR20230017150A (ko) | 2023-02-03 |
DE102021119474A1 (de) | 2023-02-02 |
IL295024A (en) | 2023-02-01 |
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