[특허]Low silver, low nickel brazing material

[미국특허] Low silver, low nickel brazing material 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C22C-030/02 C22C-005/06 B23K-035/02 B23K-035/24 B23K-035/26 B23K-035/28 B23K-035/30 C22C-009/00 C22C-018/00 C22C-030/06
출원번호	US-0503551 (2010-10-21)
등록번호	US-9157134 (2015-10-13)
국제출원번호	PCT/US2010/053561 (2010-10-21)
§371/§102 date	20120423 (20120423)
국제공개번호	WO2011/053506 (2011-05-05)
발명자 / 주소	Belohlav, Alan Kuta, Marcin
출원인 / 주소	Lucas-Milhaupt, Inc.
대리인 / 주소	Boyle Fredrickson, S.C.
인용정보	피인용 횟수 : 0 인용 특허 : 72

초록 ▼

A homogenous brazing material essentially consisting of relatively low amounts of silver and nickel together with copper, zinc, and other constituents is provided. The brazing material has a working temperature exceeding 630° F. and is preferably between about 1250° F. and 1500° F. The brazing material preferably has about 30 percent by weight of silver, about 36 percent by weight of copper, about 32 percent by weight of zinc, and about 2 percent by weight of nickel. The addition of nickel in the above-specified amount improves resistance against interface corrosion in aqueous solutions, aids in the strength of the alloy, and provides improved wettability on ferrous and non-ferrous substrates. The brazing material may also include a flux, such as a core or a coating.

대표청구항 ▼

1. A brazing material consisting of: less than approximately 35 percent by weight of silver;less than approximately 40 percent by weight of copper;more than 18 percent by weight of zinc;from approximately 1.75 percent by weight to approximately 2.25 percent by weight of nickel; and whereinthe brazing material has a working temperature greater than approximately 630° F. 2. The material of claim 1 having silver in an amount less than 32 percent by weight of silver. 3. The material of claim 2 having silver in an amount less than 31 percent by weight of silver. 4. The material of claim 3 having from approximately 29 percent by weight to approximately 31 percent by weight of silver. 5. The material of claim 1 having from approximately 31 percent by weight to approximately 40 percent by weight of zinc. 6. The material of claim 1 having copper in an amount less than 38 percent by weight. 7. The material of claim 6 having copper in an amount less than approximately 37 percent by weight. 8. The material of claim 7 having from approximately 35 percent by weight to approximately 37 percent by weight of copper. 9. The material of claim 1 having a working temperature of between 1250° F. and 1450° F. 10. The material of claim 1 in the form of at least one of a strip, a wire, a ring, a washer, a powder, and a paste. 11. The material of claim 1 configured for at least one of: use with torch, induction, furnace or other heating methods that are performed in open air and require the use of a flux; andcontrolled atmosphere heating without the use of a flux. 12. The material of claim 1 having less than 0.20 percent by weight of indium, gallium, tin, aluminum, and titanium. 13. A brazing material consisting of: copper;zinc;nickel;silver;less than six percent by weight of cadmium;trace constituents amounting to no more than 0.15 percent by weight of the total material composition; andthe brazing material having a working temperature exceeding 630° F. 14. The material of claim 13 having from approximately 29 percent by weight to approximately 31 percent by weight of silver. 15. The material of claim 13 having from approximately 1.75 percent by weight to approximately 2.25 percent by weight of nickel. 16. The material of claim 13 having from approximately 31 percent by weight to approximately 33 percent by weight of zinc. 17. The material of claim 13 having from approximately 35 percent by weight to approximately 37 percent by weight of copper. 18. The material of claim 13 having a working temperature between approximately 1250° F. to approximately 1450° F. 19. A brazing material having a total composition consisting of: from approximately 20 percent by weight to approximately 60 percent by weight of silver;from approximately 20 percent by weight to approximately 60 percent by weight of copper;from approximately 31 percent to approximately 40 percent by weigh of zinc;from approximately 0.5 percent by weight to approximately 5.00 percent by weight of nickel;trace elements amounting to no more than approximately 0.15 percent by weight of the total composition; and whereinthe brazing material has a working temperature greater than approximately 630° F.

이 특허에 인용된 특허 (72) 인용/피인용 타임라인 분석

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[미국특허] Low silver, low nickel brazing material 원문보기

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