DK0443291T3 - Elektrisk stikforbindelsespar - Google Patents

Elektrisk stikforbindelsespar

Info

Publication number: DK0443291T3
Authority: DK; Denmark
Prior art keywords: plug; tin; alloy; copper; coating
Prior art date: 1990-02-23

Application number

DK90710034.1T

Other languages

English (en)

Inventor

Hans W Dipl-Ing Brinkmann

Original Assignee

Stolberger Metallwerke Gmbh

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.)

1990-02-23

Filing date

1990-12-07

Publication date

1995-08-14

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6400876&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK0443291(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1990-12-07 Application filed by Stolberger Metallwerke Gmbh filed Critical Stolberger Metallwerke Gmbh

1995-08-14 Application granted granted Critical

1995-08-14 Publication of DK0443291T3 publication Critical patent/DK0443291T3/da

Links

239000011248 coating agent Substances 0.000 abstract 3
238000000576 coating method Methods 0.000 abstract 3
239000000463 material Substances 0.000 abstract 3
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 2
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 2
ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract 2
229910052802 copper Inorganic materials 0.000 abstract 2
239000010949 copper Substances 0.000 abstract 2
BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
229910000881 Cu alloy Inorganic materials 0.000 abstract 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
229910001128 Sn alloy Inorganic materials 0.000 abstract 1
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
239000000654 additive Substances 0.000 abstract 1
229910045601 alloy Inorganic materials 0.000 abstract 1
239000000956 alloy Substances 0.000 abstract 1
239000004411 aluminium Substances 0.000 abstract 1
229910052782 aluminium Inorganic materials 0.000 abstract 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
229910052787 antimony Inorganic materials 0.000 abstract 1
WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 abstract 1
238000003780 insertion Methods 0.000 abstract 1
230000037431 insertion Effects 0.000 abstract 1
229910052742 iron Inorganic materials 0.000 abstract 1
229910052749 magnesium Inorganic materials 0.000 abstract 1
239000011777 magnesium Substances 0.000 abstract 1
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 1
230000008018 melting Effects 0.000 abstract 1
238000002844 melting Methods 0.000 abstract 1
229910052759 nickel Inorganic materials 0.000 abstract 1
229910052763 palladium Inorganic materials 0.000 abstract 1
229910052697 platinum Inorganic materials 0.000 abstract 1
229920001296 polysiloxane Polymers 0.000 abstract 1
229910052703 rhodium Inorganic materials 0.000 abstract 1
239000010948 rhodium Substances 0.000 abstract 1
MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 abstract 1
229910052709 silver Inorganic materials 0.000 abstract 1
239000004332 silver Substances 0.000 abstract 1
229910052725 zinc Inorganic materials 0.000 abstract 1
239000011701 zinc Substances 0.000 abstract 1
229910052726 zirconium Inorganic materials 0.000 abstract 1

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C13/00—Alloys based on tin
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9265—Special properties
- Y10S428/929—Electrical contact feature
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/939—Molten or fused coating
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12708—Sn-base component
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12708—Sn-base component
- Y10T428/12715—Next to Group IB metal-base component

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Coating With Molten Metal (AREA)
Conductive Materials (AREA)
Contacts (AREA)
Coupling Device And Connection With Printed Circuit (AREA)
Details Of Connecting Devices For Male And Female Coupling (AREA)
Surgical Instruments (AREA)
Other Surface Treatments For Metallic Materials (AREA)
Thermistors And Varistors (AREA)
Cell Electrode Carriers And Collectors (AREA)

DK90710034.1T 1990-02-23 1990-12-07 Elektrisk stikforbindelsespar DK0443291T3 (da)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE4005836A DE4005836C2 (de)	1990-02-23	1990-02-23	Elektrisches Steckverbinderpaar

Publications (1)

Publication Number	Publication Date
DK0443291T3 true DK0443291T3 (da)	1995-08-14

Family

ID=6400876

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK90710034.1T DK0443291T3 (da)	1990-02-23	1990-12-07	Elektrisk stikforbindelsespar

Country Status (9)

Country	Link
US (1)	US5075176A (da)
EP (1)	EP0443291B1 (da)
JP (1)	JP3089303B2 (da)
KR (1)	KR100215623B1 (da)
AT (1)	ATE123594T1 (da)
DE (2)	DE4005836C2 (da)
DK (1)	DK0443291T3 (da)
ES (1)	ES2074554T3 (da)
GR (1)	GR3017253T3 (da)

Families Citing this family (40)

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GB9102062D0 (en) *	1991-01-31	1991-03-13	Otter Controls Ltd	Improvements relating to conductors for switching applications
DE4443461C1 (de) *	1994-12-07	1996-07-04	Wieland Werke Ag	Band- bzw. drahtförmiges Verbundmaterial und seine Verwendung
US5679471A (en) *	1995-10-16	1997-10-21	General Motors Corporation	Silver-nickel nano-composite coating for terminals of separable electrical connectors
DE19606116A1 (de) *	1996-02-20	1997-08-21	Berkenhoff Gmbh	Elektrische Kontaktelemente
DE19617488C2 (de) *	1996-05-02	2002-03-07	Gustav Krueger	Kontaktelement für lösbare elektrische Verbindungen
US5849424A (en) *	1996-05-15	1998-12-15	Dowa Mining Co., Ltd.	Hard coated copper alloys, process for production thereof and connector terminals made therefrom
US6179935B1 (en) *	1997-04-16	2001-01-30	Fuji Electric Co., Ltd.	Solder alloys
JPH11189835A (ja) *	1997-12-25	1999-07-13	Jst Mfg Co Ltd	すず−ニッケル合金およびこの合金により表面処理を施した部品
US6139979A (en) *	1999-01-28	2000-10-31	Murata Manufacturing Co., Ltd.	Lead-free solder and soldered article
DE10025107A1 (de)	2000-05-20	2001-11-22	Stolberger Metallwerke Gmbh	Elektrisch leifähiges Metallband und Steckverbinder
DE10025106A1 (de) *	2000-05-20	2001-11-22	Stolberger Metallwerke Gmbh	Elektrisch leitfähiges Metallband und Steckverbinder hieraus
US7156670B2 (en) *	2001-01-10	2007-01-02	Newfrey Llc	Electrical capped contact stud and method of fastening an electrical contact
WO2002056422A1 (en) *	2001-01-10	2002-07-18	Newfrey Llc	Electrical capped contact stud and method of fastening an electrical contact
US7788802B2 (en) *	2001-01-10	2010-09-07	Newfrey Llc	Method of fastening an electrical contact
US6924044B2 (en) *	2001-08-14	2005-08-02	Snag, Llc	Tin-silver coatings
DE10139953A1 (de) *	2001-08-21	2003-03-27	Stolberger Metallwerke Gmbh	Werkstoff für ein Metallband
FI113912B (fi) *	2001-12-13	2004-06-30	Outokumpu Oy	Lisäaineellisella pinnoitteella varustettu yhdysterminaali
JP2004006065A (ja) *	2002-03-25	2004-01-08	Mitsubishi Shindoh Co Ltd	電気接続用嵌合型接続端子
DE10248803A1 (de)	2002-10-19	2004-04-29	Robert Bosch Gmbh	Elektrische Kontaktoberflächen
US7391116B2 (en) *	2003-10-14	2008-06-24	Gbc Metals, Llc	Fretting and whisker resistant coating system and method
KR100698662B1 (ko) *	2003-12-02	2007-03-23	에프씨엠 가부시끼가이샤	주석-은-구리 3원합금으로 이루어지는 표면을 형성한단자, 그것을 갖는 부품 및 제품
FI118873B (fi) *	2003-12-09	2008-04-15	Luvata Oy	Tinaseospinnoite kontaktitarkoituksiin
FI118874B (fi) *	2003-12-09	2008-04-15	Luvata Oy	Tinapinnoite kontaktitarkoituksiin
CN100402217C (zh) *	2004-05-08	2008-07-16	房山区良乡永固福利电力金具制造厂	载流金具超声波热浸锡及铜铝过渡双变性复合粘接
US20050268991A1 (en) *	2004-06-03	2005-12-08	Enthone Inc.	Corrosion resistance enhancement of tin surfaces
RU2307184C1 (ru) *	2006-03-13	2007-09-27	Юлия Алексеевна Щепочкина	Сплав на основе олова
DE102006056065B4 (de)	2006-11-20	2018-08-09	Newfrey Llc	Vormontierte Kontaktiereinheit und Befestigungsanordnung
US20080308300A1 (en) *	2007-06-18	2008-12-18	Conti Mark A	Method of manufacturing electrically conductive strips
WO2009117639A2 (en) *	2008-03-20	2009-09-24	Interplex Nas, Inc.	Press fit (compliant) terminal and other connectors with tin-silver compound
EA016324B1 (ru) *	2008-07-22	2012-04-30	Государственное Научное Учреждение "Физико-Технический Институт Национальной Академии Наук Беларуси"	Баббитовый сплав
JP2013033656A (ja) *	2011-08-02	2013-02-14	Yazaki Corp	端子
JP5086485B1 (ja)	2011-09-20	2012-11-28	Ｊｘ日鉱日石金属株式会社	電子部品用金属材料及びその製造方法
JP5284526B1 (ja)	2011-10-04	2013-09-11	Ｊｘ日鉱日石金属株式会社	電子部品用金属材料及びその製造方法
TWI493798B (zh) *	2012-02-03	2015-07-21	Ｊｘ日鑛日石金屬股份有限公司	Push-in terminals and electronic parts for their use
JP6050664B2 (ja)	2012-06-27	2016-12-21	Ｊｘ金属株式会社	電子部品用金属材料及びその製造方法、それを用いたコネクタ端子、コネクタ及び電子部品
JP6029435B2 (ja)	2012-06-27	2016-11-24	Ｊｘ金属株式会社	電子部品用金属材料及びその製造方法、それを用いたコネクタ端子、コネクタ及び電子部品
CN103436732B (zh) *	2013-08-15	2016-05-04	江西理工大学	一种高效锡液抗氧化添加剂
JP6516013B2 (ja)	2015-09-17	2019-05-22	富士電機株式会社	半導体装置用はんだ材
DE102018208116A1 (de) *	2018-05-23	2019-11-28	Aurubis Stolberg Gmbh & Co. Kg	Kupferband zur Herstellung von elektrischen Kontakten und Verfahren zur Herstellung eines Kupferbandes und Steckverbinder
DE102020006059A1 (de)	2020-10-05	2022-04-07	Wieland-Werke Aktiengesellschaft	Elektrisch leitendes Material mit Beschichtung

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Publication number	Priority date	Publication date	Assignee	Title
US2469878A (en) *	1945-06-23	1949-05-10	Gen Electric	Switch contact
BE534477A (da) *	1953-12-29
DE1807580C2 (de) *	1968-11-04	1971-04-08	Furukawa Electric Co Ltd	Verwendung einer Zinnlegierung als Werkstoff zum Feuerverzinnen von metallischen Gegenstaenden
US3892637A (en) *	1969-03-10	1975-07-01	Polti Jean Loup	Method of treatment of metal surfaces
US3853382A (en) *	1972-04-28	1974-12-10	Burndy Corp	High pressure electrical contacts
JPS5141222B2 (da) *	1972-12-06	1976-11-09
JPS6019630B2 (ja) *	1979-07-18	1985-05-17	日本鉱業株式会社	接触子
FR2482791A1 (fr) *	1980-05-13	1981-11-20	Ctm	Perfectionnements aux contacts de connecteurs
US4408824A (en) *	1981-06-08	1983-10-11	Amp Incorporated	Wire-in-slot terminal
US4447109A (en) *	1982-06-04	1984-05-08	Western Electric Company, Inc.	Connector pin
US4514032A (en) *	1983-10-31	1985-04-30	Amp Incorporated	Contact element
IT1181380B (it) *	1984-06-28	1987-09-23	Angelo Passini	Lega a base di stagno per saldatura avente una elevata resistenza alla ossidazione allo stato fuso
JPS6191394A (ja) *	1984-10-12	1986-05-09	Nippon Mining Co Ltd	接触子の製造方法
US4749626A (en) *	1985-08-05	1988-06-07	Olin Corporation	Whisker resistant tin coatings and baths and methods for making such coatings
US4715910A (en) *	1986-07-07	1987-12-29	Olin Corporation	Low cost connector alloy
DE8713477U1 (de) *	1987-10-07	1987-12-03	Industrieanlagen-Betriebsgesellschaft Mbh, 8012 Ottobrunn	Seewasserfeste Steckverbindung für den Einsatz der Potentialsonden-Vielstellenmeßtechnik
DE3932536C1 (en) *	1989-09-29	1990-08-09	W.C. Heraeus Gmbh, 6450 Hanau, De	Wear resistant contact material - in which is applied to support comprising copper alloy and non-noble metal contg. silver, palladium or palladium-silver alloy
DE3932535C1 (en) *	1989-09-29	1990-07-26	W.C. Heraeus Gmbh, 6450 Hanau, De	Electrical socket connector - includes 2 contact carriers and contact layer having silver prim section and sec. section of silver alloy contg. tin

1990
- 1990-02-23 DE DE4005836A patent/DE4005836C2/de not_active Expired - Fee Related
- 1990-12-07 DK DK90710034.1T patent/DK0443291T3/da active
- 1990-12-07 DE DE59009211T patent/DE59009211D1/de not_active Expired - Lifetime
- 1990-12-07 EP EP90710034A patent/EP0443291B1/de not_active Expired - Lifetime
- 1990-12-07 AT AT90710034T patent/ATE123594T1/de not_active IP Right Cessation
- 1990-12-07 ES ES90710034T patent/ES2074554T3/es not_active Expired - Lifetime
1991
- 1991-02-05 US US07/650,896 patent/US5075176A/en not_active Expired - Lifetime
- 1991-02-22 JP JP03028869A patent/JP3089303B2/ja not_active Expired - Lifetime
- 1991-02-22 KR KR1019910002920A patent/KR100215623B1/ko not_active Expired - Lifetime
1995
- 1995-08-30 GR GR950402369T patent/GR3017253T3/el unknown

Also Published As

Publication number	Publication date
ATE123594T1 (de)	1995-06-15
JPH04218275A (ja)	1992-08-07
JP3089303B2 (ja)	2000-09-18
ES2074554T3 (es)	1995-09-16
GR3017253T3 (en)	1995-11-30
EP0443291B1 (de)	1995-06-07
DE4005836A1 (de)	1991-08-29
EP0443291A2 (de)	1991-08-28
DE4005836C2 (de)	1999-10-28
EP0443291A3 (en)	1992-04-08
DE59009211D1 (de)	1995-07-13
KR920000156A (ko)	1992-01-10
US5075176A (en)	1991-12-24
KR100215623B1 (ko)	1999-08-16

Publication	Publication Date	Title
DE59009211D1 (de)	1995-07-13	Elektrisches Steckverbinderpaar.
KR970071856A (ko)	1997-11-07	투명 도전막 형성용 도포액, 이를 이용한 투명 도전막 및 그 형성방법
US6641930B2 (en)	2003-11-04	Electrically conductive metal tape and plug connector
US4111690A (en)	1978-09-05	Electrical contacts with gold alloy
GB2093064B (en)	1984-10-31	External connectors or terminals
DK1158618T3 (da)	2004-03-01	Elektrisk ledende metalbånd og kennektor deraf
KR920007729A (ko)	1992-05-27	와이어전극(wire electrode)
US4149883A (en)	1979-04-17	Electrical contact
GB9002172D0 (en)	1990-03-28	Electrical connector
GB8618404D0 (en)	1986-09-03	Filamentary material
US3175181A (en)	1965-03-23	Electrical connector
ES2257499T3 (es)	2006-08-01	Procedimiento para la fabricacion de microcontactos deslizantes.
WO1988000250A1 (en)	1988-01-14	Low cost connector alloy
EP0082647A3 (en)	1983-07-27	Light duty corrosion resistant contacts
CA1248366A (en)	1989-01-10	Silver rich materials for low current contacts
JPH08176775A (ja)	1996-07-09	Ｓｎ合金めっき材
ES2142747A1 (es)	2000-04-16	Cobre poli-microaleado con elevada conductividad electrica y proedades termicas y mecanicas superiores a las de las aleaciones base cobre convenconales.
GB2100285A (en)	1982-12-22	Materials for electrical contacts
SU444428A1 (ru)	1979-02-25	Сплав на медной основе
KR970025826A (ko)	1997-06-24	고강도 무연 땜납용 재료
KR830002053A (ko)	1983-05-21	금 합 금
JPS5526022A (en)	1980-02-25	Compact dc motor
BR8100996A (pt)	1982-10-13	Liga de chumbo com baixo teor de antimonio,destinada a grades,pecas terminais e conexoes de acumuladores eletricos
KR970064799A (ko)	1997-10-13	땜 납
TH6548A (th)	1989-09-01	วัสดุสัมผัสทางไฟฟ้าเงิน-โลหะออกไซด์