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EP1038981A1 - Automatenlegierung auf kupferbasis - Google Patents

Automatenlegierung auf kupferbasis Download PDF

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Publication number
EP1038981A1
EP1038981A1 EP98953070A EP98953070A EP1038981A1 EP 1038981 A1 EP1038981 A1 EP 1038981A1 EP 98953070 A EP98953070 A EP 98953070A EP 98953070 A EP98953070 A EP 98953070A EP 1038981 A1 EP1038981 A1 EP 1038981A1
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EP
European Patent Office
Prior art keywords
weight
percent
remainder
alloy
silicon
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Application number
EP98953070A
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English (en)
French (fr)
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EP1038981A4 (de
EP1038981B1 (de
Inventor
Keiichiro Sambo Copper Alloy Co. Ltd. OISHI
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Sambo Copper Alloy Co Ltd
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Sambo Copper Alloy Co Ltd
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Application filed by Sambo Copper Alloy Co Ltd filed Critical Sambo Copper Alloy Co Ltd
Priority to EP04077560A priority Critical patent/EP1502964B1/de
Priority to EP04077561A priority patent/EP1508626B1/de
Publication of EP1038981A1 publication Critical patent/EP1038981A1/de
Publication of EP1038981A4 publication Critical patent/EP1038981A4/de
Application granted granted Critical
Publication of EP1038981B1 publication Critical patent/EP1038981B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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 present invention relates to free-cutting copper alloys.
  • bronze alloys such as the one under JIS designation H5111 BC6 and brass alloys such as the ones under JIS designations H3250-C3604 and C3771.
  • Those alloys are so enhanced in machinability with the addition of 1.0 to 6.0 percent, by weight, of lead as to give industrially satisfactory results as easy-to-work copper alloy.
  • lead-contained copper alloys have been an important basic material for a variety of articles such as city water faucets, water supply/drainage metal fittings and valves.
  • lead does not form a solid solution in the matrix but disperses in granular form, thereby improving the machinability of those alloys.
  • lead has to be added in as much as 2.0 or more percent by weight. If the addition of lead is less than 1.0 percent by weight, chippings will be spiral in form as (D) in Fig. 1. Spiral chippings cause various troubles such as, for example, tangling with the tool. If, on the other hand, the content of lead is 1.0 or more percent by weight and not larger than 2.0 percent by weight, the cut surface will be rough, though that will produce some results such as reduction of the cutting resistance. It is usual, therefore, that lead is added in not smaller than 2.0 percent by weight.
  • Some expanded copper alloys in which a high degree of cutting property is required are mixed with some 3.0 or more percent, by weight, of lead. Further, some bronze castings have a lead content of as much as some 5.0 percent, by weight.
  • lead-mixed alloys have been greatly limited in recent years, because lead contained therein is harmful to humans as an environment pollutant. That is, the lead-contained alloys pose a threat to human health and environmental hygiene because lead finds its way in metallic vapor that generates in the steps of processing those alloys at high temperatures such as melting and casting and there is also danger that lead contained in the water system metal fittings, valves and others made of those alloys will dissolve out into drinking water.
  • the cutting works, forgings, castings and others include city water faucets, water supply/drainage metal fittings, valves, stems, hot water supply pipe fittings, shaft and heat exchanger parts.
  • first invention alloys Nos. 1001 to 1007 As the first series of examples of the present invention, cylindrical ingots with compositions given in Tables 1 to 15, each 100 mm in outside diameter and 150 mm in length, were hot extruded into a round bar 15 mm in outside diameter at 750 C to produce the following test pieces: first invention alloys Nos. 1001 to 1007, second invention alloys Nos. 2001 to 2006, third invention alloys Nos. 3001 to 3010, fourth invention alloys Nos. 4001 to 4021, fifth invention alloys Nos. 5001 to 5020, sixth invention alloys Nos. 6001 to 6045, seventh invention alloys Nos. 7001 to 7029, eighth invention alloys Nos. 8001 to 8008, ninth invention alloys Nos. 9001 to 9006, tenth invention alloys Nos.
  • 12003 is an alloy test piece obtained by heat-treating an extruded test piece with the same composition as first invention alloy No. 1007 under the sane conditions as for No. 12001 - for 30 minutes at 580°C.
  • No. 12004 is an alloy test piece obtained by heat-treating an extruded test piece with the same composition as No. 1007 under the same conditions as for No. 12002 - for two hours at 450°C.
  • This aluminum bronze is the most excellent of the expanded copper alloys under the JIS designations with regard to strength and wear resistance.
  • No. 13006 corresponds to the naval brass alloy "JIS C 4622" and is the most excellent of the expanded copper alloys under the JIS designations with regard to corrosion resistance.
  • the chips from the cutting work were examined and classified into four forms (A) to (D) as shown in Fig. 1.
  • the results are enumerated in Table 18 to Table 33.
  • the chippings in the form of a spiral with three or more windings as (D) in Fig. 1 are difficult to process, that is, recover or recycle, and could cause trouble in cutting work as, for example, getting tangled with the tool and damaging the cut metal surface.
  • chippings in the form of a fine needle as (A) in Fig. 1 or in the form of arc shaped pieces as (B) will not present such problems as mentioned above and are not bulky as the chippings in (C) and (D) and easy to process.
  • fine chippings as (A) still could creep in on the slide table of a machine tool such as a lathe and cause mechanical trouble, or could be dangerous because they could stick into the worker's finger, eye or other body parts.
  • the surface condition of the cut metal surface was checked after cutting work.
  • the results are shown in Table 18 to Table 33.
  • the commonly used basis for indication of the surface roughness is the maximum roughness (Rmax). While requirements are different depending on the application field of brass articles, the alloys with Rmax ⁇ 10 microns are generally considered excellent in machinability. The alloys with 10 microns ⁇ Rmax ⁇ 15 microns are judged as industrially acceptable while those with Rmax ⁇ 15 microns are taken as poor in machinability.
  • the following invention alloys are all equal to the conventional lead-contained alloys Nos. 13001 to 13003 in machinability: first invention alloys Nos. 1001 to 1007, second invention alloys Nos. 2001 to 2006, third invention alloys Nos. 3001 to 3010, fourth invention alloys Nos. 4001 to 4021, fifth invention alloys Nos. 5001 to 5020, sixth invention alloys Nos. 6001 to 6045, seventh invention alloys Nos. 7001 to 7029, eighth invention alloys Nos. 8001 to 8008, ninth invention alloys Nos. 9001 to 9006, tenth invention alloys Nos. 10001 to 10008, eleventh invention alloys Nos.
  • those invention alloys are favorably compared not only with the conventional alloys Nos. 13004 to 13006 with a lead content of not higher than 0.1 percent by weight but also Nos. 13001 to 13003 which contain large quantities of lead.
  • the twelfth invention alloys Nos. 12001 to 12004 which are obtained by heat-treating the first invention alloys Nos. 1006 and 1007, are improved over the first invention alloys in machinability. It is understood that a proper heat treatment could further enhance the machinability of the first to eleventh invention alloys, depending upon the alloy compositions and other conditions.
  • test pieces two test pieces, first and second test pieces, in the same shape 15 mm in outside diameter and 25 mm in length were cut out of each extruded test piece obtained as described above.
  • the first test piece was held for 30 minutes at 700°C, and then compressed at the compression rate of 70 percent in the direction of axis to reduce the length from 25 mm to 7.5 mm.
  • the surface condition after the compression 700°C deformability
  • the results were given in Table 18 to Table 33.
  • the evaluation of deformability was made by visually checking for cracks on the side of the test piece.
  • Table 18 to Table 33 the test pieces with no cracks found are marked "o"; those with small cracks are indicated by " ⁇ " and those with large cracks are represented by a symbol "x".
  • the second test pieces were put to a tensile test by the commonly practised test method to determine the tensile strength, N/mm 2 and elongation, %.
  • the first to twelfth invention alloys are equal to or superior to the conventional alloys Nos. 13001 to 13004 and No. 13006 in hot workability and mechanical properties and are suitable for industrial use.
  • the seventh invention alloys in particular have the same level of mechanical properties as the conventional alloy No. 13005, i.e. the aluminum bronze which is the most excellent in strength of the expanded copper alloys under the JIS designations, and thus have understandably a prominent high strength feature.
  • first to six and eighth to twelfth invention alloys were put to dezincification corrosion and stress corrosion cracking tests in accordance with the test methods specified under "ISO 6509” and “JIS H 3250" respectively to examine the corrosion resistance and resistance to stress corrosion cracking in comparison with the conventional alloys.
  • the test piece taken from each extruded test piece was imbedded laid in a phenolic resin material in such a way that the exposed test piece surface is perpendicular to the extrusion direction of the extruded test piece.
  • the surface of the test piece was polished with emery paper No. 1200, and then ultrasonic-washed in pure water and dried.
  • the test piece thus prepared was dipped in a 12.7 g/l aqueous solution of cupric chloride dihydrate (CuCl 2 .2H 2 O) 1.0% and left standing for 24 hours at 75°C.
  • the test piece was taken out of the aqueous solution and the maximum depth of dezincing corrosion was determined.
  • the measurements of the maximum dezincification corrosion depth are given in Table 18 to Table 25 and Table 28 to Table 33.
  • the first to fourth invention alloys and the eighth to twelfth invention alloys are excellent in corrosion resistance in comparison with the conventional alloys Nos. 13001 to 13003 which contain great amount of lead. And it was confirmed that especially the fifth and sixth invention alloys whose improvement in both machinability and corrosion resistance has been intended are very high in corrosion resistance in comparison with the conventional alloy No. 13006, a naval brass which is the most resistant to corrosion of all the expanded alloys under the JIS designations.
  • test piece In the stress corrosion cracking tests in accordance with the test method described in "JIS H 3250", a 150-mm-long test piece was cut out from each extruded material. The test piece was bent with the center placed on an arc-shaped tester with a radius of 40 mm in such a way that one end forms an angle of 45 degrees with respect the other end. The test piece thus subjected to a tensile residual stress was degreased and dried, and then placed in an ammonia environment in the desiccator with a 12.5% aqueous ammonia (ammonia diluted in the equivalent of pure water). To be exact, the test piece was held some 80 mm above the surface of aqueous ammonia in the desiccator.
  • test piece After the test piece was left standing in the ammonia environment for 2 hours, 8 hours and 24 hours, the test piece was taken out from the desiccator, washed in sulfuric acid solution 10% and examined for cracks under a magnifier of 10 magnifications.
  • the results are given in Table 18 to Table 25 and Table 28 to Table 33.
  • the alloys which developed clear cracks when held in the ammonia environment for two hours are marked "xx.”
  • the test pieces which had no cracks at two hours but were found clearly cracked in 8 hours are indicated in "x.”
  • the test pieces which had no cracks in 8 hours, but were found clearly to have cracks in 28 hours are identified by the symbol " ⁇ ".
  • the test pieces which were found to have no cracks at all in 24 hours are given a symbol "o".
  • Test pieces in the shape of a round bar with the surface cut to a outside diameter of 14 mm and the length cut to 30 mm were prepared from each of the following extruded materials: No. 8001 to No. 8008, No. 9001 to No. 9006, No. 10001 to No. 10008, No. 11001 to No. 11011 and No. 13001 to No. 13006.
  • Each test piece was then weighed to measure the weight before oxidation. After that, the test piece was placed in a porcelain crucible and held in an electric furnace maintained at 500°C. At the passage of 100 hours, the test piece was taken out of the electric furnace and was weighed to measure the weight after oxidation. From the measurements before and after oxidation was calculated the increase in weight by oxidation.
  • the weight of each test piece increased after oxidation.
  • the increase was brought about by high-temperature oxidation. Subjected to a high temperature, oxygen combines with copper, zinc and silicon to form Cu 2 0, Zn0, Si0 2 . That is, oxygen adds to the weight. It can be said, therefore, that the alloys which are smaller in weight increase by oxidation are more excellent in high-temperature oxidation resistance.
  • Table 28 to Table 31 and Table 33 The results obtained are shown in Table 28 to Table 31 and Table 33.
  • the eighth to eleventh invention alloys are equal, in regard to weight increase by oxidation to the conventional alloy No. 13005, an aluminum bronze ranking high in resistance to high-temperature oxidation among the expanded copper alloys under the JIS designations and are far smaller than any other conventional copper alloy.
  • the eighth to eleventh invention alloys are very excellent in machinability and resistance to high-temperature oxidation as well.
  • test piece thus obtained was cut on the circumferential surface, holed and cut down into a ring-shaped test piece 32 mm in outside diameter and 10 mm in thickness (that is, the length in the axial direction).
  • the test piece was then fitted and clamped on a rotatable shaft, and a roll 48 mm in diameter placed in parallel with the axis of the shaft was thrusted against the test piece under a load of 50 kg.
  • the roll was made of stainless steel under the JIS designation SUS 304.
  • alloy composition (wt%) Cu Si Pb Zn 1001 74.8 2.9 0.03 remainder 1002 74.1 2.7 0.21 remainder 1003 78.1 3.6 0.10 remainder 1004 70.6 2.1 0.36 remainder 1005 74.9 3.1 0.11 remainder 1006 69.3 2.3 0.05 remainder 1007 78.5 2.9 0.05 remainder No. alloy composition (wt%) Cu Si Pb Bi Te Se Zn 2001 73.8 2.7 0.05 0.03 remainder 2002 69.9 2.0 0.33 0.27 remainder 2003 74.5 2.8 0.03 0.31 remainder 2004 78.0 3.6 0.12 0.05 remainder 2005 76.2 3.2 0.05 0.33 remainder 2006 72.9 2.6 0.24 0.06 remainder No.
  • machinability hot work-ability mechanical properties form of chippings condition of cut surface cutting force (N) 700°C deformability tensile strength (N/mm 2 ) elongation (%) 7001 o ⁇ ⁇ 132 ⁇ 755 17 7002 o ⁇ ⁇ 127 ⁇ 776 19 7003 o ⁇ ⁇ 135 ⁇ 620 15 7004 o ⁇ ⁇ 130 ⁇ 714 18 7005 o ⁇ ⁇ 128 ⁇ 708 19 7006 o ⁇ ⁇ 130 ⁇ 685 16 7007 o ⁇ ⁇ 132 ⁇ 717 18 7008 o ⁇ ⁇ 130 ⁇ 811 18 7009 o ⁇ ⁇ 130 ⁇ 790 15 7010 o ⁇ ⁇ 131 ⁇ 708 18 7011 o ⁇ ⁇ 128 ⁇ 810 17 7012 o ⁇ ⁇ 128 ⁇ 694 17 7013 o ⁇ ⁇ 132 ⁇ 742 16 7014 o ⁇ ⁇ 128 ⁇ 809 17 70
  • machinability hot work-ability mechanical properties form of chippings condition of cut surface cutting force (N) 700°C deformability tensile strength (N/mm 2 ) elongation (%) 7021 o ⁇ ⁇ 126 ⁇ 792 19 7022 o ⁇ ⁇ 128 ⁇ 762 20 7023 o ⁇ ⁇ 129 ⁇ 725 17 7024 o ⁇ ⁇ 128 ⁇ 744 21 7025 o ⁇ ⁇ 130 ⁇ 750 20 7026 ⁇ ⁇ 132 ⁇ 671 23 7027 o ⁇ ⁇ 128 ⁇ 740 23 7028 o ⁇ ⁇ 133 ⁇ 763 22 7029 ⁇ ⁇ 129 ⁇ 647 24 No.

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  • Chemical & Material Sciences (AREA)
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  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
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  • Conductive Materials (AREA)
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EP98953070A 1998-10-09 1998-11-16 Automatenlegierung auf kupferbasis Expired - Lifetime EP1038981B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04077560A EP1502964B1 (de) 1998-10-09 1998-11-16 Automatenlegierung auf Kupferbasis
EP04077561A EP1508626B1 (de) 1998-10-09 1998-11-16 Automatenlegierung auf Kupferbasis.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP28792198A JP3917304B2 (ja) 1998-10-09 1998-10-09 快削性銅合金
JP28792198 1998-10-09
PCT/JP1998/005156 WO2000022181A1 (fr) 1998-10-09 1998-11-16 Alliage de decolletage a base de cuivre

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP04077561A Division EP1508626B1 (de) 1998-10-09 1998-11-16 Automatenlegierung auf Kupferbasis.
EP04077560A Division EP1502964B1 (de) 1998-10-09 1998-11-16 Automatenlegierung auf Kupferbasis

Publications (3)

Publication Number Publication Date
EP1038981A1 true EP1038981A1 (de) 2000-09-27
EP1038981A4 EP1038981A4 (de) 2003-02-19
EP1038981B1 EP1038981B1 (de) 2005-01-26

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EP98953070A Expired - Lifetime EP1038981B1 (de) 1998-10-09 1998-11-16 Automatenlegierung auf kupferbasis
EP04077560A Expired - Lifetime EP1502964B1 (de) 1998-10-09 1998-11-16 Automatenlegierung auf Kupferbasis
EP04077561A Expired - Lifetime EP1508626B1 (de) 1998-10-09 1998-11-16 Automatenlegierung auf Kupferbasis.

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EP04077560A Expired - Lifetime EP1502964B1 (de) 1998-10-09 1998-11-16 Automatenlegierung auf Kupferbasis
EP04077561A Expired - Lifetime EP1508626B1 (de) 1998-10-09 1998-11-16 Automatenlegierung auf Kupferbasis.

Country Status (8)

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EP (3) EP1038981B1 (de)
JP (1) JP3917304B2 (de)
KR (1) KR100375426B1 (de)
AU (1) AU738301B2 (de)
CA (1) CA2303512C (de)
DE (3) DE69833582T2 (de)
TW (1) TW577931B (de)
WO (1) WO2000022181A1 (de)

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EP1273671A1 (de) * 2001-07-05 2003-01-08 Diehl Metall Stiftung & Co. KG Entzinkungsbeständige Kupfer-Zink-Legierung sowie Verfahren zu ihrer Herstellung
EP1502965A1 (de) * 2003-08-01 2005-02-02 Kovohute Celakovice, a.s. Messing mit guter Zerspanbarkeit.
WO2006039951A1 (de) * 2004-10-11 2006-04-20 Diehl Metall Stiftung & Co. Kg Kupfer-zink-silizium-legierung, deren verwendung und deren herstellung
WO2012104426A2 (en) 2011-02-04 2012-08-09 Swissmetal Industries Ltd Cu-ni-zn-mn alloy
EP3128020A4 (de) * 2014-03-31 2017-04-12 Kurimoto, Ltd. Bleiarme messinglegierung für sanitäreelement
TWI649438B (zh) * 2016-08-15 2019-02-01 日商三菱伸銅股份有限公司 易削性銅合金鑄件及易削性銅合金鑄件的製造方法(二)
US11028466B2 (en) 2016-01-21 2021-06-08 Fortune Mfg. Co., Ltd. Unleaded free-cutting brass alloys with excellent castability, method for producing the same, and application thereof

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US8506730B2 (en) 1998-10-09 2013-08-13 Mitsubishi Shindoh Co., Ltd. Copper/zinc alloys having low levels of lead and good machinability
JP2002069551A (ja) * 2000-09-04 2002-03-08 Sumitomo Light Metal Ind Ltd 快削性銅合金
JP2004244672A (ja) 2003-02-13 2004-09-02 Dowa Mining Co Ltd 耐脱亜鉛性に優れた銅基合金
KR101211206B1 (ko) * 2005-09-22 2012-12-11 미쓰비시 신도 가부시키가이샤 극소량의 납을 포함하는 쾌삭성 구리 합금
KR100864909B1 (ko) * 2007-01-30 2008-10-22 주식회사 풍산 쾌삭성 구리합금
KR100864910B1 (ko) * 2007-01-30 2008-10-22 주식회사 풍산 쾌삭성 구리합금
WO2010122960A1 (ja) 2009-04-24 2010-10-28 サンエツ金属株式会社 高強度銅合金
JP5645570B2 (ja) * 2010-09-27 2014-12-24 株式会社Ｌｉｘｉｌ 鍛造用及び切削加工用銅基合金並びに水道用器具
US9017491B2 (en) 2011-11-04 2015-04-28 Mitsubishi Shindoh Co., Ltd. Hot-forged copper alloy part
JP5763504B2 (ja) * 2011-11-11 2015-08-12 三菱伸銅株式会社 銅合金製の転造加工用素材及び転造加工品
JP2013194277A (ja) * 2012-03-19 2013-09-30 Lixil Corp 切削加工用銅基合金及びその合金を用いた水道用器具
KR101781183B1 (ko) 2012-10-31 2017-09-22 가부시키가이샤 기츠 황동 합금과 가공 부품 및 접액 부품
JP2015175008A (ja) * 2014-03-13 2015-10-05 株式会社Ｌｉｘｉｌ 鉛レス黄銅材料および水道用器具
WO2019035224A1 (ja) * 2017-08-15 2019-02-21 三菱伸銅株式会社 快削性銅合金、及び、快削性銅合金の製造方法
JP6448166B1 (ja) * 2017-08-15 2019-01-09 三菱伸銅株式会社 快削性銅合金、及び、快削性銅合金の製造方法
JP6448168B1 (ja) * 2017-08-15 2019-01-09 三菱伸銅株式会社 快削性銅合金、及び、快削性銅合金の製造方法
US11155909B2 (en) 2017-08-15 2021-10-26 Mitsubishi Materials Corporation High-strength free-cutting copper alloy and method for producing high-strength free-cutting copper alloy
KR101969010B1 (ko) 2018-12-19 2019-04-15 주식회사 풍산 납과 비스무트가 첨가되지 않은 쾌삭성 무연 구리합금
JP7180488B2 (ja) * 2019-03-25 2022-11-30 三菱マテリアル株式会社 銅合金丸棒材
WO2020261666A1 (ja) 2019-06-25 2020-12-30 三菱マテリアル株式会社 快削性銅合金、及び、快削性銅合金の製造方法
DK3872199T3 (da) 2019-06-25 2023-03-13 Mitsubishi Materials Corp Automat-kobberlegering og fremgangsmåde til fremstilling af automat-kobberlegering
CA3142297C (en) 2019-06-25 2023-07-25 Mitsubishi Materials Corporation Free-cutting copper alloy casting, and method for producing free-cutting copper alloy casting
US20240093332A1 (en) 2019-12-11 2024-03-21 Mitsubishi Materials Corporation Free-cutting copper alloy and method for manufacturing free-cutting copper alloy
AU2020403497B2 (en) 2019-12-11 2023-05-18 Mitsubishi Materials Corporation Free-cutting copper alloy and method for manufacturing free-cutting copper alloy
DE102020127317A1 (de) 2020-10-16 2022-04-21 Diehl Metall Stiftung & Co. Kg Bleifreie Kupferlegierung sowie Verwendung der bleifreien Kupferlegierung

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Title
"ASM Speciality Handbook: Copper and Copper Alloys" 2001 , ASM INTERNATIONAL , OHIO, USA XP002223300 * page 545; example C87800 * *
DATABASE CA [Online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; MANNHEIM, R. ET AL: "Silicon brass: an alternative for lead-free faucets and fittings" retrieved from STN Database accession no. 131:246354 XP002223301 & CONGRESSO ANUAL - ASSOCIACAO BRASILEIRA DE METALURGIA E MATERIAIS (1998), VOLUME DATE 1997, 52ND(II CONGRESSO INTERNACIONAL DE TECNOLOGIA METALURGICA E DE MATERIAIS), 5012-5032 , *
PATENT ABSTRACTS OF JAPAN vol. 010, no. 321 (C-382), 31 October 1986 (1986-10-31) & JP 61 133357 A (SHOWA ALUM IND KK), 20 June 1986 (1986-06-20) *
See also references of WO0022181A1 *

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EP1273671A1 (de) * 2001-07-05 2003-01-08 Diehl Metall Stiftung & Co. KG Entzinkungsbeständige Kupfer-Zink-Legierung sowie Verfahren zu ihrer Herstellung
EP1502965A1 (de) * 2003-08-01 2005-02-02 Kovohute Celakovice, a.s. Messing mit guter Zerspanbarkeit.
WO2006039951A1 (de) * 2004-10-11 2006-04-20 Diehl Metall Stiftung & Co. Kg Kupfer-zink-silizium-legierung, deren verwendung und deren herstellung
WO2012104426A2 (en) 2011-02-04 2012-08-09 Swissmetal Industries Ltd Cu-ni-zn-mn alloy
EP3128020A4 (de) * 2014-03-31 2017-04-12 Kurimoto, Ltd. Bleiarme messinglegierung für sanitäreelement
US11028466B2 (en) 2016-01-21 2021-06-08 Fortune Mfg. Co., Ltd. Unleaded free-cutting brass alloys with excellent castability, method for producing the same, and application thereof
EP3498870A4 (de) * 2016-08-15 2019-07-31 Mitsubishi Shindoh Co., Ltd. Automatenkupferlegierung und verfahren zur herstellung von automatenkupferlegierung
CN109563568A (zh) * 2016-08-15 2019-04-02 三菱伸铜株式会社 易切削性铜合金铸件及易切削性铜合金铸件的制造方法
TWI649436B (zh) * 2016-08-15 2019-02-01 日商三菱伸銅股份有限公司 易削性銅合金鑄件及易削性銅合金鑄件的製造方法(一)
CN110249065A (zh) * 2016-08-15 2019-09-17 三菱伸铜株式会社 易切削性铜合金及易切削性铜合金的制造方法
CN110268077A (zh) * 2016-08-15 2019-09-20 三菱伸铜株式会社 易切削性铜合金及易切削性铜合金的制造方法
EP3498872A4 (de) * 2016-08-15 2020-04-01 Mitsubishi Shindoh Co., Ltd. Kupferautomatenlegierungsguss und verfahren zur herstellung des kupferautomatenlegierungsgusses
EP3498869A4 (de) * 2016-08-15 2020-04-01 Mitsubishi Shindoh Co., Ltd. Freigeschnittene kupferlegierung und verfahren zur herstellung einer freischneidenden kupferlegierung
EP3498871A4 (de) * 2016-08-15 2020-04-01 Mitsubishi Shindoh Co., Ltd. Kupferautomatenlegierungsguss und verfahren zur herstellung des kupferautomatenlegierungsgusses
EP3498873A4 (de) * 2016-08-15 2020-04-01 Mitsubishi Shindoh Co., Ltd. Automatenkupferlegierung und verfahren zur herstellung von automatenkupferlegierung
CN110268077B (zh) * 2016-08-15 2020-06-12 三菱伸铜株式会社 易切削性铜合金及易切削性铜合金的制造方法
CN110249065B (zh) * 2016-08-15 2020-09-25 三菱伸铜株式会社 易切削性铜合金及易切削性铜合金的制造方法
TWI649438B (zh) * 2016-08-15 2019-02-01 日商三菱伸銅股份有限公司 易削性銅合金鑄件及易削性銅合金鑄件的製造方法(二)

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EP1508626B1 (de) 2006-09-13
KR100375426B1 (ko) 2003-03-10
EP1038981A4 (de) 2003-02-19
DE69835912D1 (de) 2006-10-26
EP1038981B1 (de) 2005-01-26
CA2303512A1 (en) 2000-04-20
AU738301B2 (en) 2001-09-13
DE69833582D1 (de) 2006-04-27
CA2303512C (en) 2006-07-11
DE69828818D1 (de) 2005-03-03
TW577931B (en) 2004-03-01
EP1502964A1 (de) 2005-02-02
JP2000119774A (ja) 2000-04-25
DE69835912T2 (de) 2007-03-08
KR20010033101A (ko) 2001-04-25
EP1508626A1 (de) 2005-02-23
DE69833582T2 (de) 2007-01-18
WO2000022181A1 (fr) 2000-04-20
JP3917304B2 (ja) 2007-05-23
AU1054099A (en) 2000-05-01
DE69828818T2 (de) 2006-01-05
EP1502964B1 (de) 2006-03-01

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