EP1489194A1 - Verfahren zur Herstellung Halbzeuge aus CuZnPbSn-Legierungen für Warmumformung - Google Patents

Verfahren zur Herstellung Halbzeuge aus CuZnPbSn-Legierungen für Warmumformung Download PDF

Info

Publication number: EP1489194A1
Authority: EP; European Patent Office
Prior art keywords: alloy; process according; cuznpbsn; content; finished product
Prior art date: 2003-06-17
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

Application number

EP04356098A

Other languages

English (en)

French (fr)

Other versions

EP1489194B1 (de

Inventor

Abbas Borhan Tavakoli

Jean-Marie Welter

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Trefimetaux SAS

Original Assignee

Trefimetaux SAS

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.)

2003-06-17

Filing date

2004-06-16

Publication date

2004-12-22

2004-06-16 Application filed by Trefimetaux SAS filed Critical Trefimetaux SAS

2004-06-16 Priority to PL04356098T priority Critical patent/PL1489194T3/pl

2004-12-22 Publication of EP1489194A1 publication Critical patent/EP1489194A1/de

2006-08-16 Application granted granted Critical

2006-08-16 Publication of EP1489194B1 publication Critical patent/EP1489194B1/de

2024-06-16 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

229910045601 alloy Inorganic materials 0.000 title claims abstract description 99
239000000956 alloy Substances 0.000 title claims abstract description 99
238000004519 manufacturing process Methods 0.000 title claims abstract description 20
238000000034 method Methods 0.000 title claims description 25
238000009987 spinning Methods 0.000 claims abstract description 6
238000003754 machining Methods 0.000 claims abstract description 4
239000000047 product Substances 0.000 claims description 27
ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 23
229910052785 arsenic Inorganic materials 0.000 claims description 17
RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 15
239000000203 mixture Substances 0.000 claims description 15
229910001369 Brass Inorganic materials 0.000 claims description 12
239000010951 brass Substances 0.000 claims description 12
239000011701 zinc Substances 0.000 claims description 12
239000003651 drinking water Substances 0.000 claims description 10
235000020188 drinking water Nutrition 0.000 claims description 10
239000011265 semifinished product Substances 0.000 claims description 10
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
239000010949 copper Substances 0.000 claims description 9
229910052802 copper Inorganic materials 0.000 claims description 8
238000010438 heat treatment Methods 0.000 claims description 8
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
238000005553 drilling Methods 0.000 claims description 7
229910052725 zinc Inorganic materials 0.000 claims description 6
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
238000005336 cracking Methods 0.000 claims description 4
238000009826 distribution Methods 0.000 claims description 4
229910052782 aluminium Inorganic materials 0.000 claims description 2
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
229910052787 antimony Inorganic materials 0.000 claims description 2
WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 2
229910052742 iron Inorganic materials 0.000 claims description 2
230000001105 regulatory effect Effects 0.000 claims description 2
229910052710 silicon Inorganic materials 0.000 claims description 2
239000010703 silicon Substances 0.000 claims description 2
238000012669 compression test Methods 0.000 claims 1
238000007669 thermal treatment Methods 0.000 abstract 2
239000011133 lead Substances 0.000 description 19
238000012360 testing method Methods 0.000 description 13
238000005260 corrosion Methods 0.000 description 12
230000007797 corrosion Effects 0.000 description 12
238000013467 fragmentation Methods 0.000 description 11
238000006062 fragmentation reaction Methods 0.000 description 11
238000010586 diagram Methods 0.000 description 6
230000015572 biosynthetic process Effects 0.000 description 5
WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
241000920340 Pion Species 0.000 description 3
238000005259 measurement Methods 0.000 description 3
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
229910001340 Leaded brass Inorganic materials 0.000 description 2
238000004458 analytical method Methods 0.000 description 2
210000004027 cell Anatomy 0.000 description 2
230000001627 detrimental effect Effects 0.000 description 2
101150034785 gamma gene Proteins 0.000 description 2
229910002804 graphite Inorganic materials 0.000 description 2
239000010439 graphite Substances 0.000 description 2
238000010191 image analysis Methods 0.000 description 2
238000002386 leaching Methods 0.000 description 2
238000005461 lubrication Methods 0.000 description 2
239000011159 matrix material Substances 0.000 description 2
239000002609 medium Substances 0.000 description 2
229910052751 metal Inorganic materials 0.000 description 2
239000002184 metal Substances 0.000 description 2
238000012986 modification Methods 0.000 description 2
230000004048 modification Effects 0.000 description 2
238000005086 pumping Methods 0.000 description 2
238000011282 treatment Methods 0.000 description 2
229910000967 As alloy Inorganic materials 0.000 description 1
241001275902 Parabramis pekinensis Species 0.000 description 1
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
238000013459 approach Methods 0.000 description 1
239000012736 aqueous medium Substances 0.000 description 1
230000009286 beneficial effect Effects 0.000 description 1
238000011109 contamination Methods 0.000 description 1
238000005520 cutting process Methods 0.000 description 1
238000004512 die casting Methods 0.000 description 1
238000004090 dissolution Methods 0.000 description 1
230000035622 drinking Effects 0.000 description 1
238000007731 hot pressing Methods 0.000 description 1
229910052745 lead Inorganic materials 0.000 description 1
239000000314 lubricant Substances 0.000 description 1
238000005272 metallurgy Methods 0.000 description 1
150000002739 metals Chemical class 0.000 description 1
238000001000 micrograph Methods 0.000 description 1
231100000989 no adverse effect Toxicity 0.000 description 1
239000002245 particle Substances 0.000 description 1
238000004064 recycling Methods 0.000 description 1
238000011160 research Methods 0.000 description 1
238000005070 sampling Methods 0.000 description 1
238000007873 sieving Methods 0.000 description 1
239000000126 substance Substances 0.000 description 1
238000004381 surface treatment Methods 0.000 description 1
239000010409 thin film Substances 0.000 description 1
239000011573 trace mineral Substances 0.000 description 1
235000013619 trace mineral Nutrition 0.000 description 1
230000000007 visual effect Effects 0.000 description 1

Images

Classifications

- 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 the field of copper base alloys for stamping for the manufacture of parts used primarily in drinking water distribution pipes (valves, valves, fittings).
FIG. 1 is a diagram which gives the evolution of the weight percentages of the ⁇ , ⁇ 'and ⁇ phases as a function of the weight concentration of tin, the CuZnPbSn alloys according to the invention being those for which Sn is between 1.3 and 1.7% by weight.
This diagram was obtained from the following 6 alloys with increasing Sn content: Sn% weight Pb% weight Fe% weight Zn% weight Cu% weight 0 2.16 0.19 38.6 Rest 0.59 2.06 0.20 39.9 Rest 1.13 2.12 0.19 39.1 Rest 1.71 2.19 0.17 38.5 Rest 2.19 2.08 0.20 38.1 Rest 2.73 2.02 0.18 37.5 Rest
FIG. 2 is a diagram giving the weight concentration of tin of the ⁇ phases, ⁇ 'and ⁇ , CuZnPbSn alloys according to the invention, concentration obtained on section micrograph of a half-product obtained according to alloy No. 2 by point analysis with a scanning microscope.
On the ordinate is the weight content of Sn
abscissa is the distance in ⁇ m between the different points of analysis, distance taken along a straight line from an origin point taken in a phase ⁇ , line that cuts successively from left to right, phases ⁇ / ⁇ '/ ⁇ / ⁇ / / / / ⁇ .
This diagram puts a phenomenon of pumping tin from the ⁇ , ⁇ 'phases by the ⁇ phase.
Figure 3 is a photograph for highlighting hot malleability alloys according to the invention (alloys 2 and 4) by crushing tests of 55% (pions higher) and 80% (lower pions), made at 700, 750 and 825 ° C.
FIG. 4 is a diagram showing a section of a coin stamped according to the invention in contact with water, explanation of the mechanism of accelerating action of arsenic on the lead release rate in drinking water
FIG. 5 is a diagram which shows the elements of the photograph of FIG.
the tin content of the CuZnPbSn alloy can be between 1.4 and 1.6%.
the lead content can be between 1.9 and 2.1%.
the iron content may be less than or equal to 0.2%.
the arsenic content can be between 5 and 500 ppm.
the aluminum content can be between 5 and 500 ppm.
the antimony content can be between 5 and 100ppm.
the silicon content may be between 5 and 500 ppm.
Another subject of the invention comprises the semi-products obtained from the CuZnPbSn alloy according to the invention, in which the microstructure of the alloy is composed of three intermetallic phases: ⁇ , ⁇ 'and ⁇ .
said CuZnPbSn alloy can have a composition chosen so that, according to ISO 6509, said semi-finished product obtained from this alloy has an average depth of dezincification less than 200 .mu.m, and even typically less than 150 microns, so that said alloy CuZnPbSn, which is not arsenic, is much higher than the alloy CW617N and even approaches the performances of the CW602N arsenic alloy.
said CuZnPbSn alloy can have a composition chosen so that the half-product obtained from this alloy present, for a drilling operation performed under the usual conditions according to standard NF E66-520-7 of the 2000 edition, an average size of chips typically two times smaller than that obtained with CW602N alloy which is a brass with arsenic.
said CuZnPbSn alloy may have a composition chosen so that the hot-pressing test according to the ASTM E209-00 standard of the 2000 edition. , and made in the range of 600 ° C to 750 ° C, causes no cracking of said half-product obtained from this alloy.
the semi-finished products according to the invention have a large latitude of hot deformation, as regards both the temperature range and the crushing rate, without the appearance of cracks or cracks in the metal.
These semi-products have a great ability to deform without cracking or cracks, which is extremely advantageous in practice.
said CuZnPbSn alloy of said half-product can present a composition chosen so that the release rate lead in drinking water is below the regulatory threshold according to the Directive 98/83 / EC on the quality of water intended for human consumption. It is important to note also the very low rate of release of Zn compared to that of alloys 5 and 6.
said CuZnPbSn alloy may have a composition chosen so that said half-product has a high heat malleability, and so that its crush resistance is lower. to that obtained with the CW602N alloy, and preferably two times less than that of said CW602N alloy. It goes without saying that the power installed on the machines or devices for manufacturing the finished products, in particular when such manufacture comprises deformation of the half-product by crushing, will be less in the case of the semi-finished products according to the invention than in the case of the semi-finished products of the state of the art formed from alloys Nos. 5 and 6.
Another object of the invention is formed by the finished product obtained from the semi-finished product.
the half-product being typically selected from: a valve, a valve, a fitting.
Another object of the invention is formed by the method of manufacturing the finished product according to the invention, wherein said finished product is typically formed by deformation or machining said half-product, said method not comprising a treatment step which is very advantageous and economical in practice compared to comparable processes of the state of the art.
Another object of the invention is formed by the use of a CuZnPbSn alloy according to the invention, or a semi-finished product according to the invention or obtained according to the invention, for the manufacture of finished products or components used for sanitary water distribution such as valves, valves and fittings.
Table 1 gives the chemical compositions of the alloys tested according to the invention (% by weight).
the alloys of Table 1 were made according to a conventional range comprising the steps listed in Table 2 .
the machinability of the alloys according to the invention has been studied in comparison with the CW617N and the CW602N.
CM intermediate chip
Table 4 gives the opening of the square meshes (in mm) of each sieve as well as an arbitrary index which refers to it (index sieves). Characteristics of the sieves used No. sieve Opening of the stitches (mm) Sieve index 1 2.5 7 2 2 6 3 1.6 5 4 1.25 4 5 0.9 3 6 0.56 2 7 0 (Background - No aperture) 1
the screens are mounted on a vibratory support that is vibrated for five minutes for each sieving operation.
CM average chip
Table 5 summarizes the results obtained. Each parameter is calculated using the average of the results of five different measurements Machining test results (drilling) Drilling force (N) CM Alloy 1 2739 ⁇ 25 4.2 ⁇ 0.2 Alloy 2 2940 ⁇ 36 3.80 ⁇ 0.2 Alloy 3 3082 ⁇ 41 3.75 ⁇ 0.1 Alloy 4 3193 ⁇ 48 3.70 ⁇ 0.2 Alloy 5 3232 ⁇ 42 4.5 ⁇ 0.2 Alloy 6 2642 ⁇ 30 7.3 ⁇ 0.2
Table 6 presents the results for lead, copper and zinc.
alloy according to the invention gives less release (Pb, Cu and Zn) that the CW602N alloy (alloy 6) and much less Zn release than the CW617N (alloy 5).
Table 7 presents the results of visual examinations of hot-crushed samples.
FIG. 3 shows the photograph of a part of the crushed pieces,
FIG. 5 being a schematic representation of the crushed samples of FIG.
Hot crush test results (+: No cracks, -: Cracked) Rate No. Alloy T (° C)
Overwrite% 1 2 3 4 5 6 55 + + + + + + - 600 80 - + + + - - 700 55 + + + + + + - 80 - + + + + + + + + + + + + + + + + + + - 80 - + + + + + 750 55 + + + + + + + + + 80 - + + + + - - 825 55 + + + + + - + 80 - - - - - - - - - - - - - -
alloys according to The invention are very well molded between 600 and 750 ° C and this for both crash rate tested.
Table 8 summarizes the results obtained (expressed in Kg) for a crush rate of 55%.
Results of crushing forces (kg) No. alloy T (° C) 1 2 3 4 5 6 700 1725 1000 735 700 720 1650 750 1025 650 540 500 550 995 825 460 530 420 400 390 425
Table 8 shows that the alloys according to the invention exhibit stress levels smaller than those of alloy No. 6 (CW602N), and close to those of alloy No. 5 (CW617N).
alloys according to the invention alloys Nos. 2 to 4
alloys of the state of the art alloys of the state of the art

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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)
Heat Treatment Of Steel (AREA)
Conductive Materials (AREA)
Inorganic Fibers (AREA)
Crystals, And After-Treatments Of Crystals (AREA)
Shaping Metal By Deep-Drawing, Or The Like (AREA)
Forging (AREA)
Metal Extraction Processes (AREA)
Heat Treatment Of Sheet Steel (AREA)
Catalysts (AREA)
Manufacture Of Alloys Or Alloy Compounds (AREA)

EP04356098A 2003-06-17 2004-06-16 Verfahren zur Herstellung Halbzeuge aus CuZnPbSn-Legierungen für Warmumformung Expired - Lifetime EP1489194B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PL04356098T PL1489194T3 (pl)	2003-06-17	2004-06-16	Sposób wytwarzania półproduktów ze stopów CuZnPbSn do kucia matrycowego na gorąco

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR0307267A FR2856411B1 (fr)	2003-06-17	2003-06-17	ALLIAGES CuZnPbSn DESTINES AU MATRICAGE A CHAUD
FR0307267		2003-06-17

Publications (2)

Publication Number	Publication Date
EP1489194A1 true EP1489194A1 (de)	2004-12-22
EP1489194B1 EP1489194B1 (de)	2006-08-16

Family

ID=33396786

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP04356098A Expired - Lifetime EP1489194B1 (de)	2003-06-17	2004-06-16	Verfahren zur Herstellung Halbzeuge aus CuZnPbSn-Legierungen für Warmumformung

Country Status (8)

Country	Link
EP (1)	EP1489194B1 (de)
AT (1)	ATE336603T1 (de)
DE (1)	DE602004001926T2 (de)
DK (1)	DK1489194T3 (de)
ES (1)	ES2271820T3 (de)
FR (1)	FR2856411B1 (de)
PL (1)	PL1489194T3 (de)
PT (1)	PT1489194E (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS4923970B1 (de) *	1970-11-17	1974-06-19
EP0947592A1 (de) *	1996-09-09	1999-10-06	Toto Ltd.	Kupferlegierung und verfahren zu deren herstellung
EP1008664A1 (de) *	1997-04-08	2000-06-14	Kitz Corporation	Kupferbasislegierung mit hervorragender korrosions- und spannungsrisskorrosionsbeständigkeit und verfahren zu eren herstellung
JP2000212662A (ja) *	1998-07-24	2000-08-02	Toto Ltd	耐酸性腐食性に優れた黄銅材及び黄銅管材、黄銅製品
EP1029935A1 (de) *	1997-11-11	2000-08-23	Toto Ltd.	Metallmaterial, messing und verfahren zu deren herstellung
JP2000257814A (ja) *	1999-03-03	2000-09-22	Toto Ltd	黄銅製気化器及びその製造方法並びにそれを用いた温風暖房機
JP2000309835A (ja) *	1998-12-22	2000-11-07	Toto Ltd	黄銅材及び黄銅材の製造方法、黄銅材の加工方法
US20020015657A1 (en) *	2000-06-30	2002-02-07	Dowa Mining Co., Ltd.	Copper-base alloys having resistance to dezincification

2003
- 2003-06-17 FR FR0307267A patent/FR2856411B1/fr not_active Expired - Fee Related
2004
- 2004-06-16 ES ES04356098T patent/ES2271820T3/es not_active Expired - Lifetime
- 2004-06-16 PT PT04356098T patent/PT1489194E/pt unknown
- 2004-06-16 DK DK04356098T patent/DK1489194T3/da active
- 2004-06-16 AT AT04356098T patent/ATE336603T1/de active
- 2004-06-16 EP EP04356098A patent/EP1489194B1/de not_active Expired - Lifetime
- 2004-06-16 PL PL04356098T patent/PL1489194T3/pl unknown
- 2004-06-16 DE DE602004001926T patent/DE602004001926T2/de not_active Expired - Lifetime

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS4923970B1 (de) *	1970-11-17	1974-06-19
EP0947592A1 (de) *	1996-09-09	1999-10-06	Toto Ltd.	Kupferlegierung und verfahren zu deren herstellung
EP1008664A1 (de) *	1997-04-08	2000-06-14	Kitz Corporation	Kupferbasislegierung mit hervorragender korrosions- und spannungsrisskorrosionsbeständigkeit und verfahren zu eren herstellung
EP1029935A1 (de) *	1997-11-11	2000-08-23	Toto Ltd.	Metallmaterial, messing und verfahren zu deren herstellung
JP2000212662A (ja) *	1998-07-24	2000-08-02	Toto Ltd	耐酸性腐食性に優れた黄銅材及び黄銅管材、黄銅製品
JP2000309835A (ja) *	1998-12-22	2000-11-07	Toto Ltd	黄銅材及び黄銅材の製造方法、黄銅材の加工方法
JP2000257814A (ja) *	1999-03-03	2000-09-22	Toto Ltd	黄銅製気化器及びその製造方法並びにそれを用いた温風暖房機
US20020015657A1 (en) *	2000-06-30	2002-02-07	Dowa Mining Co., Ltd.	Copper-base alloys having resistance to dezincification

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; NISHIJIMA, NAOMICHI ET AL: "Improving machinability of naval brass", XP002259854, retrieved from STN Database accession no. 82:128441 CA *
DAVIS J R ED - AMERICAN SOCIETY FOR METALS: "Metals Handbook, CONVENTIONAL HOT EXTRUSION", 1988, FORMING AND FORGING, METALS PARK, ASM, US, PAGE(S) 315, XP002222211 *
J.R. DAVIS & ASS.: "Copper and Copper Alloys", 2001, ASM INTERNATIONALL, USA, ISBN: 0-87170-726-8, XP002297590 *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 11 3 January 2001 (2001-01-03) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 12 3 January 2001 (2001-01-03) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 14 5 March 2001 (2001-03-05) *

Also Published As

Publication number	Publication date
DE602004001926D1 (de)	2006-09-28
ES2271820T3 (es)	2007-04-16
PT1489194E (pt)	2007-01-31
DE602004001926T2 (de)	2007-12-06
FR2856411B1 (fr)	2007-03-02
ATE336603T1 (de)	2006-09-15
PL1489194T3 (pl)	2007-01-31
FR2856411A1 (fr)	2004-12-24
DK1489194T3 (da)	2006-12-27
EP1489194B1 (de)	2006-08-16

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