GB1428070A - White metal casting alloy and method of making same - Google Patents
White metal casting alloy and method of making sameInfo
- Publication number
- GB1428070A GB1428070A GB4877574A GB4877574A GB1428070A GB 1428070 A GB1428070 A GB 1428070A GB 4877574 A GB4877574 A GB 4877574A GB 4877574 A GB4877574 A GB 4877574A GB 1428070 A GB1428070 A GB 1428070A
- Authority
- GB
- United Kingdom
- Prior art keywords
- white metal
- making same
- metal casting
- casting alloy
- gold
- 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
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Adornments (AREA)
- Contacts (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
1428070 White metal alloy: coating with gold A J OSTER & CO 11 Nov 1974 [3 Dec 1973] 48775/74 Headings C7A, D and F A low melting point white metal alloy suitable for jewellery and other similar uses contains After using 75% of the tin with the Sb and Pb at about 800‹F, the remainder of the tin is added, and the melt cooled to about 475‹F when the Cd is added prior to casting at 500-550‹F into rubber moulds. Immersion gold plating can be carried out on the alloy using a buffered gold chelate solution with a pH of 3 at 140-150‹F.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US420948A US3870513A (en) | 1973-12-03 | 1973-12-03 | White metal casting alloy and method of making same |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1428070A true GB1428070A (en) | 1976-03-17 |
Family
ID=23668522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4877574A Expired GB1428070A (en) | 1973-12-03 | 1974-11-11 | White metal casting alloy and method of making same |
Country Status (3)
Country | Link |
---|---|
US (1) | US3870513A (en) |
DE (1) | DE2455613A1 (en) |
GB (1) | GB1428070A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6197253B1 (en) | 1998-12-21 | 2001-03-06 | Allen Broomfield | Lead-free and cadmium-free white metal casting alloy |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2097727A (en) * | 1935-12-23 | 1937-11-02 | John Campbell | Tin alloys |
US2180139A (en) * | 1937-08-14 | 1939-11-14 | Nassau Smelting & Refining Com | Purification of metals |
US2303193A (en) * | 1941-10-04 | 1942-11-24 | Bell Telephone Labor Inc | Alloy |
GB769296A (en) * | 1953-08-13 | 1957-03-06 | D C B Ltd | Improvements in and relating to writing instruments of the ball tip type |
US3563732A (en) * | 1968-02-09 | 1971-02-16 | Daido Metal Co Ltd | Bearing alloys of tin based white metal |
-
1973
- 1973-12-03 US US420948A patent/US3870513A/en not_active Expired - Lifetime
-
1974
- 1974-11-11 GB GB4877574A patent/GB1428070A/en not_active Expired
- 1974-11-23 DE DE19742455613 patent/DE2455613A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US3870513A (en) | 1975-03-11 |
DE2455613A1 (en) | 1975-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |