WO2007015956A3 - Direct casting utilizing stack filtration - Google Patents
Direct casting utilizing stack filtration Download PDFInfo
- Publication number
- WO2007015956A3 WO2007015956A3 PCT/US2006/028308 US2006028308W WO2007015956A3 WO 2007015956 A3 WO2007015956 A3 WO 2007015956A3 US 2006028308 W US2006028308 W US 2006028308W WO 2007015956 A3 WO2007015956 A3 WO 2007015956A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filters
- molten material
- pouring
- heated
- vessel
- Prior art date
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
- C22B9/02—Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves
- C22B9/023—By filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/001—Retaining slag during pouring molten metal
- B22D43/004—Retaining slag during pouring molten metal by using filtering means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A casting system includes a filtration assembly including a filter vessel housing spaced filters pre-heated to a temperature approximating a pouring temperature of molten material to be filtered to prevent breakage of the filter due to thermal shock from contact with the molten material. Preferably, an induction coil is used to inductively heat a susceptor adjacent the filter vessel or inductively heat filters which themselves serve as susceptors. Typically, the filter vessel is disposed below a pouring vessel and above a mold, pour cup and any sprue system used and is heated independently from the same. The filters are heated during pouring to facilitate flow of the molten material therethrough whereby very fine filters may be used. Spacing of the filters enhances flow control and allows a head of molten material to form whereby dross floats to the top of the head to prevent its entry into the mold.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06788060A EP1910580A2 (en) | 2005-07-29 | 2006-07-21 | Direct casting utilizing stack filtration |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US70383105P | 2005-07-29 | 2005-07-29 | |
US60/703,831 | 2005-07-29 | ||
US11/359,032 | 2006-02-21 | ||
US11/359,032 US20070022841A1 (en) | 2005-07-29 | 2006-02-21 | Direct casting utilizing stack filtration |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007015956A2 WO2007015956A2 (en) | 2007-02-08 |
WO2007015956A3 true WO2007015956A3 (en) | 2007-09-20 |
Family
ID=37692843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2006/028308 WO2007015956A2 (en) | 2005-07-29 | 2006-07-21 | Direct casting utilizing stack filtration |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070022841A1 (en) |
EP (1) | EP1910580A2 (en) |
WO (1) | WO2007015956A2 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1320139C (en) * | 2005-07-28 | 2007-06-06 | 上海交通大学 | Electromagnetism method in multiple stages for refining molten metal |
CN102615248A (en) * | 2012-04-26 | 2012-08-01 | 苏州科羽电子技术服务有限公司 | Production process for casting |
US9605332B2 (en) * | 2012-04-27 | 2017-03-28 | Norweigian University Of Science And Technology (Ntnu) | Apparatus and method for priming a molten metal filter |
WO2018050751A1 (en) | 2016-09-16 | 2018-03-22 | Technische Universität Bergakademie Freiberg | Method for purifying a metal melt in an induction furnace |
JP6471815B1 (en) * | 2018-01-25 | 2019-02-20 | 不二製油株式会社 | Strainer equipment |
US20190252509A1 (en) * | 2018-02-09 | 2019-08-15 | Semiconductor Components Industries, Llc | Electronic device including a conductive layer including a ta-si compound and a process of forming the same |
EP3852955A4 (en) * | 2018-09-21 | 2022-08-10 | Pyrotek, Inc. | Electromagnetic priming of molten metal filters |
CN113770342A (en) * | 2021-08-12 | 2021-12-10 | 芜湖泓鹄材料技术有限公司 | Molten iron filtering device for pouring |
CN114082920A (en) * | 2021-11-17 | 2022-02-25 | 江西中鼎金属工艺有限公司 | Casting and melting forming equipment for metal artware |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4426287A (en) * | 1980-12-27 | 1984-01-17 | Bridgestone Tire Co., Ltd. | Molten metal filtering device |
US4789140A (en) * | 1982-06-11 | 1988-12-06 | Howmet Turbine Components Corporation | Ceramic porous bodies suitable for use with superalloys |
US6203593B1 (en) * | 1997-11-18 | 2001-03-20 | Bridgestone Corporation | Ceramic filter and method of filtrating molten metal using the same |
US20030150294A1 (en) * | 2002-01-25 | 2003-08-14 | Njall Stefansson | Filters for filtering molten metals and alloys field |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4834876A (en) * | 1988-03-14 | 1989-05-30 | Walker Nicholas G | Filtration assembly having integral heating means for maintaining the metallic material being filtered in the molten state |
US4999101A (en) * | 1989-11-02 | 1991-03-12 | Alusuisse Lonza-Services Ltd | Preheat indicator |
US5673902A (en) * | 1996-02-01 | 1997-10-07 | Selee Corporation | Dual stage ceramic foam filtration system and method |
US6453979B1 (en) * | 1998-05-14 | 2002-09-24 | Howmet Research Corporation | Investment casting using melt reservoir loop |
-
2006
- 2006-02-21 US US11/359,032 patent/US20070022841A1/en not_active Abandoned
- 2006-07-21 WO PCT/US2006/028308 patent/WO2007015956A2/en active Application Filing
- 2006-07-21 EP EP06788060A patent/EP1910580A2/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4426287A (en) * | 1980-12-27 | 1984-01-17 | Bridgestone Tire Co., Ltd. | Molten metal filtering device |
US4789140A (en) * | 1982-06-11 | 1988-12-06 | Howmet Turbine Components Corporation | Ceramic porous bodies suitable for use with superalloys |
US6203593B1 (en) * | 1997-11-18 | 2001-03-20 | Bridgestone Corporation | Ceramic filter and method of filtrating molten metal using the same |
US20030150294A1 (en) * | 2002-01-25 | 2003-08-14 | Njall Stefansson | Filters for filtering molten metals and alloys field |
Also Published As
Publication number | Publication date |
---|---|
WO2007015956A2 (en) | 2007-02-08 |
US20070022841A1 (en) | 2007-02-01 |
EP1910580A2 (en) | 2008-04-16 |
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