JPS55141539A - Sulfurization resistant hard low-indium silver alloy - Google Patents

Sulfurization resistant hard low-indium silver alloy

Info

Publication number
JPS55141539A
JPS55141539A JP4876279A JP4876279A JPS55141539A JP S55141539 A JPS55141539 A JP S55141539A JP 4876279 A JP4876279 A JP 4876279A JP 4876279 A JP4876279 A JP 4876279A JP S55141539 A JPS55141539 A JP S55141539A
Authority
JP
Japan
Prior art keywords
alloy
sulfurization
silver alloy
resistant hard
hard low
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.)
Pending
Application number
JP4876279A
Other languages
Japanese (ja)
Inventor
Shosuke Otsuka
Hideyo Maniwa
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.)
NIPPON SHIKEN KOGYO KK
Original Assignee
NIPPON SHIKEN KOGYO KK
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.)
Filing date
Publication date
Application filed by NIPPON SHIKEN KOGYO KK filed Critical NIPPON SHIKEN KOGYO KK
Priority to JP4876279A priority Critical patent/JPS55141539A/en
Publication of JPS55141539A publication Critical patent/JPS55141539A/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/84—Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/84—Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys
    • A61K6/844—Noble metals

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Contacts (AREA)
  • Dental Preparations (AREA)

Abstract

PURPOSE:To make an Ag alloy contg. a little In and a little Zn harmless to the human body and cheaper and enhance the sulfurization resistance and mechanical properties of the alloy by blending an adequate amount of Sn and Pd. CONSTITUTION:This silver alloy contains 65-75% Ag, 10-14% In, 7.5-17.5% Zn, 2.5-12.5% Sn and 0-0.5% Pd. This alloy is free from Cd which is undesirable in use for sanitary reasons about the human body, and the expensive In content is reduced. It, however, possesses everlasting discoloration resistance to sulfurization and superior mechanical properties such as high hardness and toughness. This alloy is used as a dental material, an electrical contact material, accessories, etc.
JP4876279A 1979-04-20 1979-04-20 Sulfurization resistant hard low-indium silver alloy Pending JPS55141539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4876279A JPS55141539A (en) 1979-04-20 1979-04-20 Sulfurization resistant hard low-indium silver alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4876279A JPS55141539A (en) 1979-04-20 1979-04-20 Sulfurization resistant hard low-indium silver alloy

Publications (1)

Publication Number Publication Date
JPS55141539A true JPS55141539A (en) 1980-11-05

Family

ID=12812286

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4876279A Pending JPS55141539A (en) 1979-04-20 1979-04-20 Sulfurization resistant hard low-indium silver alloy

Country Status (1)

Country Link
JP (1) JPS55141539A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411863A (en) * 1981-06-23 1983-10-25 Masasuke Otsuka Low-carat corrosion-resistant gold alloy with the skin of the alloy not being blacked upon casting

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5224920A (en) * 1975-08-21 1977-02-24 Nippon Shiken Kogyo Kk Hard silver alloy with sulfurization resistance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5224920A (en) * 1975-08-21 1977-02-24 Nippon Shiken Kogyo Kk Hard silver alloy with sulfurization resistance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411863A (en) * 1981-06-23 1983-10-25 Masasuke Otsuka Low-carat corrosion-resistant gold alloy with the skin of the alloy not being blacked upon casting

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