DE68905741D1 - METHOD FOR CLEANING METAL. - Google Patents
METHOD FOR CLEANING METAL.Info
- Publication number
- DE68905741D1 DE68905741D1 DE8989118517T DE68905741T DE68905741D1 DE 68905741 D1 DE68905741 D1 DE 68905741D1 DE 8989118517 T DE8989118517 T DE 8989118517T DE 68905741 T DE68905741 T DE 68905741T DE 68905741 D1 DE68905741 D1 DE 68905741D1
- Authority
- DE
- Germany
- Prior art keywords
- cleaning metal
- cleaning
- metal
- 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 - Fee Related
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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
- C22B1/04—Blast roasting
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0081—Treating and handling under pressure
-
- 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
- C22B9/05—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63250807A JPH0742524B2 (en) | 1988-10-06 | 1988-10-06 | Method for cleaning molten metal |
JP25080688A JP2718096B2 (en) | 1988-10-06 | 1988-10-06 | Vacuum cleaning method for molten metal |
JP1031105A JPH02211974A (en) | 1988-01-21 | 1989-02-13 | Method for purifying molten metal by reduction of pressure |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68905741D1 true DE68905741D1 (en) | 1993-05-06 |
DE68905741T2 DE68905741T2 (en) | 1993-09-23 |
Family
ID=27287204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8989118517T Expired - Fee Related DE68905741T2 (en) | 1988-10-06 | 1989-10-05 | METHOD FOR CLEANING METAL. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0362851B1 (en) |
KR (1) | KR920006578B1 (en) |
AU (2) | AU4245789A (en) |
BR (1) | BR8905068A (en) |
CA (1) | CA1339703C (en) |
DE (1) | DE68905741T2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5004495A (en) * | 1990-02-05 | 1991-04-02 | Labate M D | Method for producing ultra clean steel |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1582780A (en) * | 1968-01-10 | 1969-10-10 | ||
US3635696A (en) * | 1968-05-21 | 1972-01-18 | Finkl & Sons Co | Treatment of molten metal using arc heat and vacuum |
DE2710577A1 (en) * | 1977-03-11 | 1978-09-14 | Thyssen Edelstahlwerke Ag | METHOD OF REFRESHING STEEL |
DE3426736A1 (en) * | 1984-07-20 | 1986-01-30 | Klöckner CRA Technologie GmbH, 4100 Duisburg | METHOD FOR THE PURGE GAS TREATMENT OF METAL MELT |
GB2162604B (en) * | 1984-07-30 | 1988-05-25 | Teves Gmbh Alfred | Braking pressure generator for a hydraulic brake system |
US4780134A (en) * | 1986-09-23 | 1988-10-25 | A. Finkl & Sons Co. | Simplified method and apparatus for treating molten steel |
-
1989
- 1989-09-29 CA CA000614559A patent/CA1339703C/en not_active Expired - Fee Related
- 1989-10-02 AU AU42457/89A patent/AU4245789A/en not_active Abandoned
- 1989-10-05 BR BR898905068A patent/BR8905068A/en not_active IP Right Cessation
- 1989-10-05 EP EP89118517A patent/EP0362851B1/en not_active Expired - Lifetime
- 1989-10-05 DE DE8989118517T patent/DE68905741T2/en not_active Expired - Fee Related
- 1989-10-06 KR KR1019890014420A patent/KR920006578B1/en not_active IP Right Cessation
-
1992
- 1992-04-02 AU AU13976/92A patent/AU655245B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
KR900006541A (en) | 1990-05-08 |
EP0362851A3 (en) | 1990-06-20 |
AU4245789A (en) | 1990-08-16 |
AU1397692A (en) | 1992-05-28 |
KR920006578B1 (en) | 1992-08-10 |
EP0362851A2 (en) | 1990-04-11 |
AU655245B2 (en) | 1994-12-08 |
DE68905741T2 (en) | 1993-09-23 |
EP0362851B1 (en) | 1993-03-31 |
CA1339703C (en) | 1998-03-10 |
BR8905068A (en) | 1990-05-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |