EP1608789A2 - Alliage a base de cuivre - Google Patents
Alliage a base de cuivreInfo
- Publication number
- EP1608789A2 EP1608789A2 EP04706595A EP04706595A EP1608789A2 EP 1608789 A2 EP1608789 A2 EP 1608789A2 EP 04706595 A EP04706595 A EP 04706595A EP 04706595 A EP04706595 A EP 04706595A EP 1608789 A2 EP1608789 A2 EP 1608789A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- parts
- alloy
- alloy according
- heat treatment
- 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.)
- Granted
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 56
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 56
- 239000010949 copper Substances 0.000 title abstract description 11
- 229910052802 copper Inorganic materials 0.000 title abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000000976 ink Substances 0.000 claims description 15
- 238000005266 casting Methods 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 229910052748 manganese Inorganic materials 0.000 abstract description 2
- 239000011572 manganese Substances 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 239000011701 zinc Substances 0.000 abstract description 2
- 229910052725 zinc Inorganic materials 0.000 abstract description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 7
- 239000010956 nickel silver Substances 0.000 description 7
- 230000002349 favourable effect Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001000 micrograph Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 229910001015 Alpha brass Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
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 present invention relates to a copper-based alloy and its applications and more specifically to a nickel silver intended to be used for the manufacture of ballpoint pen components.
- the incompatibility between the alloy and the ink can then reduce the functional efficiency and the writing comfort of the instrument.
- the ink leaks that can follow cause a deterioration in the quality of the writing and, in more serious cases, stains and soiling.
- Resistance to gel inks can be improved by increasing the copper content of the alloy, as for example in ⁇ brasses and in ⁇ nickel silver.
- this solution has the drawback of reducing the susceptibility to hot deformation of the alloy.
- the poor hot deformability of the alloys of the prior art involves higher production costs.
- An object of the present invention is to provide an alloy and ballpoint pen components free from the limitations of the prior art.
- alloys the devices and the methods which are the subject of the claims in the corresponding categories, and for example by an alloy comprising: between 44.1 and 45.6 parts by weight of Cu; between 35.6 and 37.1 parts by weight of Zn; between 11.8 and 12.7 parts by weight of Ni; between 4.6 and 5.4 parts by weight of Mn.
- FIG. 1 represents a metallographic section of an alloy according to the invention in a single-phase structure ⁇ .
- FIG. 1a represents a micrograph corresponding to FIG. 1.
- FIG. 2 represents a metallographic section of a nickel silver of the prior art in a two-phase ⁇ / ⁇ structure.
- FIG. 2a represents a micrograph corresponding to FIG. 2.
- FIG. 3 represents a metallographic section of a two-phase nickel silver of the prior art corroded following exposure to an ink.
- FIG. 3a represents a micrograph corresponding to FIG. 3.
- FIG. 4 represents a diagram of the ⁇ phase rate of an alloy according to the invention according to the temperature of the heat treatment.
- the alloy according to the invention is a nickel silver of white, gray or silver color, the composition of which is: Table 1
- This alloy has the characteristic of having two types of microstructures controllable by heat treatment.
- the first, the single-phase structure ⁇ is essentially composed of a single crystalline phase of uniform structure.
- FIG. 1 represents a photomicrograph of a metallographic section of the alloy according to the invention having the structure ⁇ . We fear that the alloy essentially consists of a uniform solid solution of its components 10, apart from the black particles of lead 82.
- the alloy according to the invention may also have the two-phase structure ⁇ / ⁇ .
- This structure represented in FIG. 2, comprises grains of a second phase 20, the ⁇ phase, the copper content of which is lower than that of the ⁇ phase and which are distinguished in FIG. 2 by their darker color.
- the different structures of the alloy according to the invention are adapted to specific forming and machining processes.
- the two-phase structure ⁇ / ⁇ is favorable to hot deformation
- the single-phase structure ⁇ is favorable to cold deformation.
- lead in the alloy facilitates machining operations, for example bar turning.
- the alloy according to the invention can therefore be present in the two single-phase ⁇ and two-phase ⁇ / ⁇ structures. It is however possible to control the structure by heat treatment between 570 ° C and 780 ° C for 1-3 hours, followed by rapid cooling to room temperature. Following this treatment, the structure of the alloy is essentially ⁇ .
- the invention also includes alloys to which, to the elements of nature and in the proportions defined by table 1 above, are added small quantities of other elements, metallic or not, such as Magnesium, Aluminum, Iron, Phosphorus, or any other element or chemical species.
- the composition of the alloy is determined, except for unavoidable impurities, by Table 2 above.
- FIG. 4 represents the rate of ⁇ phase as a function of the heat treatment temperature.
- the choice of the temperature of the heat treatment makes it possible to modify the proportion of the ⁇ phase, and consequently, to obtain materials of different characteristics.
- the heat treatment in the temperature page TT at temperatures between 630 ° C and 720 ° C gives rise to a single-phase structure ⁇ .
- the temperature range E is favorable for extrusion.
- the diagram in FIG. 4 is specific to the alloy composition specified in Table 2. According to another aspect of the invention it would also be possible to adopt different proportions of Cu, Zn, Ni, Mn and Pb and d '' obtain an alloy whose proportion of the ⁇ and ⁇ phases can be modified by heat treatment. In particular we can vary independently the proportion of each of the components of the alloy in the range of values indicated in table 1, or beyond. The temperatures required to modify the structure of the alloy thus obtained will then be different.
- the alloy according to the invention has increased resistance to corrosion due to gel inks when it is in the single-phase structure ⁇ .
- the ⁇ phase is indeed the only one which is dissolved by the gel inks.
- FIG. 3 represents a metallographic section of an ⁇ / ⁇ nickel silver corroded by chemical reaction with the ink. It can be observed that only the ⁇ phase is attacked and that its dissolution leaves cavities 25.
- the present invention is not limited to this specific use, but also includes any other use of the alloy according to the invention.
- the alloy having the above composition is first cast in billets or in ingots or in another form suitable for hot deformation.
- the alloy according to the invention offers excellent deformability at high temperature. All the usual hot deformation processes are possible. Typically the billets are hot extruded at a temperature between 720 ° C and 870 ° C, temperature at which its structure is two-phase ⁇ / ⁇ . The wires thus obtained are then heat treated between 630 ° C and 720 ° C, as explained above, to obtain the single-phase structure ⁇ .
- the single-phase structure ⁇ lends itself to cold deformation, the extruded material is then drawn to obtain bars or wires of suitable diameter to form ink guide tubes, ink tanks, or tips for instruments. writing.
- the material thus obtained can be easily implemented cold by striking, machining, crimping, turning or by any other process.
Landscapes
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Pens And Brushes (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Conductive Materials (AREA)
- Chemically Coating (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00496/03A CH693948A5 (fr) | 2003-03-21 | 2003-03-21 | Alliage à base de cuivre. |
CH496032003 | 2003-03-21 | ||
PCT/CH2004/000051 WO2004083471A2 (fr) | 2003-03-21 | 2004-01-30 | Alliage a base de cuivre |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1608789A2 true EP1608789A2 (fr) | 2005-12-28 |
EP1608789B1 EP1608789B1 (fr) | 2007-10-03 |
Family
ID=32111450
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04706595A Expired - Lifetime EP1608789B1 (fr) | 2003-03-21 | 2004-01-30 | Alliage a base de cuivre |
Country Status (16)
Country | Link |
---|---|
US (1) | US9080226B2 (fr) |
EP (1) | EP1608789B1 (fr) |
JP (1) | JP2006520850A (fr) |
KR (1) | KR20050108405A (fr) |
CN (1) | CN100439537C (fr) |
AT (1) | ATE374843T1 (fr) |
BR (1) | BRPI0408610A (fr) |
CH (1) | CH693948A5 (fr) |
DE (1) | DE602004009297T2 (fr) |
DK (1) | DK1608789T3 (fr) |
ES (1) | ES2293213T3 (fr) |
HK (1) | HK1088932A1 (fr) |
MX (1) | MXPA05009635A (fr) |
MY (1) | MY149452A (fr) |
TW (1) | TWI314164B (fr) |
WO (1) | WO2004083471A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012104426A2 (fr) | 2011-02-04 | 2012-08-09 | Swissmetal Industries Ltd | Alliage de cu-ni-zn-mn |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7441973B2 (en) * | 2006-10-20 | 2008-10-28 | Ethicon Endo-Surgery, Inc. | Adhesive applicator |
WO2009113489A1 (fr) * | 2008-03-09 | 2009-09-17 | 三菱伸銅株式会社 | Alliage de cuivre blanc-argent et son procédé de fabrication |
DE102009021336B9 (de) | 2009-05-14 | 2024-04-04 | Wieland-Werke Ag | Kupfer-Nickel-Zink-Legierung und deren Verwendung |
CN102959108B (zh) * | 2010-07-05 | 2015-04-29 | Ykk株式会社 | 铜锌合金产品及铜锌合金产品的制造方法 |
US9181606B2 (en) | 2010-10-29 | 2015-11-10 | Sloan Valve Company | Low lead alloy |
JP5245015B1 (ja) | 2011-06-29 | 2013-07-24 | 三菱伸銅株式会社 | 銀白色銅合金及び銀白色銅合金の製造方法 |
DE102012004725B4 (de) | 2012-03-07 | 2018-07-19 | Wieland-Werke Ag | Siliziumhaltige Kupfer-Nickel-Zink-Legierung |
CN103045927B (zh) * | 2013-01-29 | 2014-11-12 | 云南科力新材料有限公司 | 一种易切削含铅锌白铜及其加工方法 |
DE102013008822A1 (de) | 2013-05-24 | 2014-11-27 | Wieland-Werke Ag | Mine für Kugelschreiber und Verwendung |
DE102014014239B4 (de) * | 2014-09-25 | 2024-04-11 | Wieland-Werke Ag | Elektrisches Verbindungselement |
EP3971312A1 (fr) * | 2020-09-17 | 2022-03-23 | Société BIC | Alliage de laiton pour pointes d'instrument d'écriture |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH467174A (it) * | 1968-05-08 | 1969-01-15 | Ateko Anstalt C O Buero Alfred | Punta per penne a sfera e procedimento per la sua fabbricazione |
GB1188277A (en) * | 1969-03-27 | 1970-04-15 | Int Nickel Ltd | Nickel-Silver Alloys |
CH508049A (fr) * | 1970-04-13 | 1971-05-31 | Int Nickel Ltd | Alliages de la classe des maillechorts |
DE2051566A1 (en) * | 1970-10-21 | 1972-04-27 | Int Nickel Ltd | Copper-nickel-zinc-manganese alloy - having fine two-phase structure, for mfr of springs |
FR2394619A1 (fr) * | 1977-06-16 | 1979-01-12 | Louyot Comptoir Lyon Alemand | Maillechort comportant du fer et son procede de mise en forme |
US4410290A (en) * | 1981-01-27 | 1983-10-18 | Pilot Ink Co., Ltd. | Composite pen tip |
US4631171A (en) * | 1985-05-16 | 1986-12-23 | Handy & Harman | Copper-zinc-manganese-nickel alloys |
JPH01177327A (ja) * | 1988-01-06 | 1989-07-13 | Sanpo Shindo Kogyo Kk | 銀白色を呈する快削性銅基合金 |
DD292933A5 (de) * | 1990-03-19 | 1991-08-14 | Veb Halbzeugwerk Auerhammer Im Veb Bergbau- Und Huettenkombinat "Albert Funk",De | Kupfer-zink-nickel-basislegierung fuer das stranggiessen von band |
JPH07166279A (ja) * | 1993-12-09 | 1995-06-27 | Kobe Steel Ltd | 耐食性、打抜き加工性及び切削性が優れた銅基合金及びその製造方法 |
JP2828418B2 (ja) * | 1995-09-21 | 1998-11-25 | 株式会社紀長伸銅所 | 改良快削白色合金 |
CA2265812A1 (fr) * | 1996-09-09 | 1998-03-12 | Toto Ltd. | Alliage de cuivre et procede de fabrication correspondant |
US6485846B1 (en) * | 2000-09-29 | 2002-11-26 | Ametek, Inc. | Corrosion resistant gauge component |
CN1162560C (zh) * | 2001-07-31 | 2004-08-18 | 上海第一铜棒厂 | 耐蚀白色铜锰合金及其线材制造方法 |
-
2003
- 2003-03-21 CH CH00496/03A patent/CH693948A5/fr not_active IP Right Cessation
-
2004
- 2004-01-30 JP JP2006504141A patent/JP2006520850A/ja active Pending
- 2004-01-30 WO PCT/CH2004/000051 patent/WO2004083471A2/fr active IP Right Grant
- 2004-01-30 CN CNB2004800075125A patent/CN100439537C/zh not_active Expired - Fee Related
- 2004-01-30 KR KR1020057017404A patent/KR20050108405A/ko not_active Application Discontinuation
- 2004-01-30 DK DK04706595T patent/DK1608789T3/da active
- 2004-01-30 EP EP04706595A patent/EP1608789B1/fr not_active Expired - Lifetime
- 2004-01-30 AT AT04706595T patent/ATE374843T1/de active
- 2004-01-30 DE DE602004009297T patent/DE602004009297T2/de not_active Expired - Lifetime
- 2004-01-30 ES ES04706595T patent/ES2293213T3/es not_active Expired - Lifetime
- 2004-01-30 MX MXPA05009635A patent/MXPA05009635A/es active IP Right Grant
- 2004-01-30 BR BRPI0408610-4A patent/BRPI0408610A/pt not_active Application Discontinuation
- 2004-03-08 MY MYPI20040799A patent/MY149452A/en unknown
- 2004-03-18 TW TW093107257A patent/TWI314164B/zh not_active IP Right Cessation
-
2005
- 2005-09-20 US US11/230,914 patent/US9080226B2/en not_active Expired - Fee Related
-
2006
- 2006-08-18 HK HK06109179.8A patent/HK1088932A1/xx not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2004083471A2 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012104426A2 (fr) | 2011-02-04 | 2012-08-09 | Swissmetal Industries Ltd | Alliage de cu-ni-zn-mn |
Also Published As
Publication number | Publication date |
---|---|
EP1608789B1 (fr) | 2007-10-03 |
MY149452A (en) | 2013-08-30 |
WO2004083471A2 (fr) | 2004-09-30 |
JP2006520850A (ja) | 2006-09-14 |
US9080226B2 (en) | 2015-07-14 |
HK1088932A1 (en) | 2006-11-17 |
TW200502411A (en) | 2005-01-16 |
CN1761768A (zh) | 2006-04-19 |
KR20050108405A (ko) | 2005-11-16 |
TWI314164B (en) | 2009-09-01 |
DE602004009297T2 (de) | 2008-07-10 |
DE602004009297D1 (de) | 2007-11-15 |
BRPI0408610A (pt) | 2006-03-07 |
MXPA05009635A (es) | 2006-03-08 |
CH693948A5 (fr) | 2004-05-14 |
WO2004083471A3 (fr) | 2004-11-18 |
US20060065336A1 (en) | 2006-03-30 |
ATE374843T1 (de) | 2007-10-15 |
ES2293213T3 (es) | 2008-03-16 |
CN100439537C (zh) | 2008-12-03 |
DK1608789T3 (da) | 2008-01-07 |
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