GB1421042A - Method of protecting metal melts - Google Patents
Method of protecting metal meltsInfo
- Publication number
- GB1421042A GB1421042A GB4428073A GB4428073A GB1421042A GB 1421042 A GB1421042 A GB 1421042A GB 4428073 A GB4428073 A GB 4428073A GB 4428073 A GB4428073 A GB 4428073A GB 1421042 A GB1421042 A GB 1421042A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- sept
- melt
- covering
- size
- 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
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
1421042 Alkali metal borosilicate glass VEREINIGTE DEUTSCHE METALLWERKE AG 20 Sept 1973 [22 Sept 1972 8 May 1973] 44280/73 Heading C1M [Also in Division C7] The surface of a melt of metal or alloy (e.g. brass) is protected by covering the surface with a glass consisting of, by weight, 10-70% B 2 O 3 , 5-65% SiO 2 , and a total of 5-40% of one or more of Na 2 O, K 2 O and Li 2 O. The glass may be applied to the melt in finely divided form (e.g. of size such as to pass a 60 Ám. mesh), the glass having previously been melted and then size reduced. Glasses exemplified have softening points of 680-804‹ C. The molten glass covering is stated to provide protection against the furnace atmosphere, to reduce radiation cooling, and to assist in removal of impurities by slag or dross formation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722246723 DE2246723B1 (en) | 1972-09-22 | 1972-09-22 | Non ferrous melt surface protection - using a glass compsn |
| DE19732323073 DE2323073A1 (en) | 1973-05-08 | 1973-05-08 | Ground glass frit for covering molten metal - to protect against oxidation during melting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1421042A true GB1421042A (en) | 1976-01-14 |
Family
ID=25763885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4428073A Expired GB1421042A (en) | 1972-09-22 | 1973-09-20 | Method of protecting metal melts |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT331528B (en) |
| CH (1) | CH581197A5 (en) |
| FR (1) | FR2200213B1 (en) |
| GB (1) | GB1421042A (en) |
| IT (1) | IT995418B (en) |
| NL (1) | NL7313048A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2535536A (en) * | 1948-12-21 | 1950-12-26 | American Metal Co Ltd | Flux for purifying metals |
-
1973
- 1973-09-14 AT AT797673A patent/AT331528B/en not_active IP Right Cessation
- 1973-09-18 IT IT2899573A patent/IT995418B/en active
- 1973-09-20 FR FR7333749A patent/FR2200213B1/fr not_active Expired
- 1973-09-20 GB GB4428073A patent/GB1421042A/en not_active Expired
- 1973-09-21 CH CH1356873A patent/CH581197A5/xx not_active IP Right Cessation
- 1973-09-21 NL NL7313048A patent/NL7313048A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT331528B (en) | 1976-08-25 |
| FR2200213B1 (en) | 1977-09-09 |
| ATA797673A (en) | 1975-11-15 |
| NL7313048A (en) | 1974-03-26 |
| IT995418B (en) | 1975-11-10 |
| FR2200213A1 (en) | 1974-04-19 |
| CH581197A5 (en) | 1976-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |