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DEVICE FOR WATER SUPPLY WITH NICKEL ELUTION SUPPRESSED AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a device for water supply that reduces and suppresses bleeding of nickel into tap water.SOLUTION: There is provided a device for water supply with a basic structure on which chromium plating is conducted after conducting nickel plating, for example a device for water supply capable of reducing and suppressing bleeding of nickel into tap water, where the nickel plating is nickel alloy plating and an alkaline aqueous solution impregnation, a chromate treatment or the like is conducted after the chromium plating in a cock metal fitting. The nickel alloy plating is plating consisting of an alloy of at least one selected from Co, Sn, Fe and P and nickel and it is preferable that Ni:Co ratio is 35:65 to 95:5 by weight when the nickel alloy plating is Ni-Co alloy plating, Ni:Sn ratio is 65:35 to 35:65 by weight for Ni-Sn plating, Ni:Fe ratio is 70:30 to 97:3 by weight for Ni-Fe plating and Ni:P ratio is 80:20 to 97:3 by weight for Ni-P plating.SELECTED DRAWING: None
【課題】水道水中へのニッケルの浸出が低減・抑制された水道用器具の提供。【解決手段】ニッケルめっきを施した後、その上にクロムめっきが施される基本的構成の水道用器具、例えば水栓金具において、ニッケルめっきをニッケル合金めっきとし、クロムめっき後にアルカリ性水溶液浸漬、クロメート処理等をする、水道水へのニッケルの浸出が低減・抑制できる水道用器具。ニッケル合金めっきは、Ｃｏ、Ｓｎ、Ｆｅ及びＰから選択される少なくとも一つと、ニッケルとの合金からなるめっきであり、ニッケル合金めっきがＮｉ−Ｃｏ合金めっきである場合、Ｎｉ：Ｃｏ比が、重量で３５：６５〜９５：５、Ｎｉ−Ｓｎめっきである場合、Ｎｉ：Ｓｎ比が重量で６５：３５〜３５：６５、Ｎｉ−Ｆｅめっきである場合、Ｎｉ：Ｆｅ比が重量で７０：３０〜９７：３、亦、Ｎｉ−Ｐめっきである場合、Ｎｉ：Ｐ比が重量で８０：２０〜９７：３で各々があることが好ましい水道用器具。【選択図】なし
DEVICE FOR WATER SUPPLY WITH NICKEL ELUTION SUPPRESSED AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a device for water supply that reduces and suppresses bleeding of nickel into tap water.SOLUTION: There is provided a device for water supply with a basic structure on which chromium plating is conducted after conducting nickel plating, for example a device for water supply capable of reducing and suppressing bleeding of nickel into tap water, where the nickel plating is nickel alloy plating and an alkaline aqueous solution impregnation, a chromate treatment or the like is conducted after the chromium plating in a cock metal fitting. The nickel alloy plating is plating consisting of an alloy of at least one selected from Co, Sn, Fe and P and nickel and it is preferable that Ni:Co ratio is 35:65 to 95:5 by weight when the nickel alloy plating is Ni-Co alloy plating, Ni:Sn ratio is 65:35 to 35:65 by weight for Ni-Sn plating, Ni:Fe ratio is 70:30 to 97:3 by weight for Ni-Fe plating and Ni:P ratio is 80:20 to 97:3 by weight for Ni-P plating.SELECTED DRAWING: None
【課題】水道水中へのニッケルの浸出が低減・抑制された水道用器具の提供。【解決手段】ニッケルめっきを施した後、その上にクロムめっきが施される基本的構成の水道用器具、例えば水栓金具において、ニッケルめっきをニッケル合金めっきとし、クロムめっき後にアルカリ性水溶液浸漬、クロメート処理等をする、水道水へのニッケルの浸出が低減・抑制できる水道用器具。ニッケル合金めっきは、Ｃｏ、Ｓｎ、Ｆｅ及びＰから選択される少なくとも一つと、ニッケルとの合金からなるめっきであり、ニッケル合金めっきがＮｉ−Ｃｏ合金めっきである場合、Ｎｉ：Ｃｏ比が、重量で３５：６５〜９５：５、Ｎｉ−Ｓｎめっきである場合、Ｎｉ：Ｓｎ比が重量で６５：３５〜３５：６５、Ｎｉ−Ｆｅめっきである場合、Ｎｉ：Ｆｅ比が重量で７０：３０〜９７：３、亦、Ｎｉ−Ｐめっきである場合、Ｎｉ：Ｐ比が重量で８０：２０〜９７：３で各々があることが好ましい水道用器具。【選択図】なし
DEVICE FOR WATER SUPPLY WITH NICKEL ELUTION SUPPRESSED AND MANUFACTURING METHOD THEREFOR
ニッケル溶出が抑制された水道用器具およびその製造方法
TAKAMATSU YUICHI (author) / IMAMOTO MITSUO (author) / HORI MASAO (author) / FUKUSHIMA TOSHIAKI (author)
2016-10-20
Patent
Electronic Resource
Japanese
IPC:
C25D
Verfahren für die elektrolytische oder elektrophoretische Herstellung von Überzügen
,
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS
/
C22C
Legierungen
,
ALLOYS
/
C23F
Nichtmechanisches Entfernen metallischer Stoffe von Oberflächen
,
NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES
/
E03C
DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER
,
Hausinstallationen für Frisch- oder Abwasser
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