GB683004A - Highly acid-resistant objects - Google Patents

Highly acid-resistant objects

Info

Publication number
GB683004A
GB683004A GB25639/50A GB2563950A GB683004A GB 683004 A GB683004 A GB 683004A GB 25639/50 A GB25639/50 A GB 25639/50A GB 2563950 A GB2563950 A GB 2563950A GB 683004 A GB683004 A GB 683004A
Authority
GB
United Kingdom
Prior art keywords
per cent
silver
gold
alloy
palladium
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.)
Expired
Application number
GB25639/50A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB683004A publication Critical patent/GB683004A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemically Coating (AREA)

Abstract

Highly acid-resistant objects, especially chemical appartus, consist wholly or in part of alloys containing 10-65 per cent palladium and 15-50 per cent silver, the balance being gold in an amount of 20-65 per cent with or without 0.05-5 per cent in all of one or more of zinc, cadmium, magnesium, tin, copper, germanium, indium, manganese, iron, cobalt and nickel. Spinning nozzles, formed of an alloy of 30 per cent gold, 30 per cent palladium, 37 per cent silver, 1.5 per cent zinc and 1.5 per cent tin may be homogenized for an hour at 1000 DEG C and tempered for half an hour at 500 DEG C. Objects may be formed wholly of, or clad with the alloy or a silver or silver-coated base may have gold and palladium electrolytically deposited thereon in such proportions that by means of a subsequent heat treatment an alloy of the above composition is formed.
GB25639/50A 1949-12-14 1950-10-20 Highly acid-resistant objects Expired GB683004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE683004X 1949-12-14

Publications (1)

Publication Number Publication Date
GB683004A true GB683004A (en) 1952-11-19

Family

ID=6597286

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25639/50A Expired GB683004A (en) 1949-12-14 1950-10-20 Highly acid-resistant objects

Country Status (1)

Country Link
GB (1) GB683004A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819366A (en) * 1969-03-21 1974-06-25 Aurium Res Corp Dental alloy
US4008080A (en) * 1974-11-13 1977-02-15 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Copper free dental gold alloys
US4069370A (en) * 1975-09-13 1978-01-17 W. C. Heraeus Gmbh Electrical contact material, and terminal
DE2637807A1 (en) * 1976-08-21 1978-02-23 Heraeus Gmbh W C GOLD ALLOY FOR ELECTRICAL CONTACTS
FR2439012A1 (en) * 1978-10-20 1980-05-16 Bristol Myers Co GOLD ALLOY FOR PORCELAIN MELTING AND DENTAL REGENERATION METHOD USING SUCH AN ALLOY
WO1989009592A1 (en) * 1988-04-07 1989-10-19 Heraeus Edelmetalle Gmbh Process for producing sintered metallic dental prostheses
US5240172A (en) * 1989-10-27 1993-08-31 Degussa Aktiengesellschaft Solder alloy for dental and jewelry parts
US5290371A (en) * 1992-10-28 1994-03-01 The J. M. Ney Company Dental alloy and restoration made therewith
US7959855B2 (en) 2006-10-19 2011-06-14 Heru Budihartono White precious metal alloy

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819366A (en) * 1969-03-21 1974-06-25 Aurium Res Corp Dental alloy
US4008080A (en) * 1974-11-13 1977-02-15 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler Copper free dental gold alloys
US4069370A (en) * 1975-09-13 1978-01-17 W. C. Heraeus Gmbh Electrical contact material, and terminal
DE2637807A1 (en) * 1976-08-21 1978-02-23 Heraeus Gmbh W C GOLD ALLOY FOR ELECTRICAL CONTACTS
US4111690A (en) * 1976-08-21 1978-09-05 W. C. Heraeus Gmbh Electrical contacts with gold alloy
FR2439012A1 (en) * 1978-10-20 1980-05-16 Bristol Myers Co GOLD ALLOY FOR PORCELAIN MELTING AND DENTAL REGENERATION METHOD USING SUCH AN ALLOY
WO1989009592A1 (en) * 1988-04-07 1989-10-19 Heraeus Edelmetalle Gmbh Process for producing sintered metallic dental prostheses
EP0338258A1 (en) * 1988-04-07 1989-10-25 Heraeus Kulzer GmbH Process for preparing sintered dental prostheses
US5240172A (en) * 1989-10-27 1993-08-31 Degussa Aktiengesellschaft Solder alloy for dental and jewelry parts
US5290371A (en) * 1992-10-28 1994-03-01 The J. M. Ney Company Dental alloy and restoration made therewith
US7959855B2 (en) 2006-10-19 2011-06-14 Heru Budihartono White precious metal alloy

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