US1810801A - Method of removing gases from molten light-metals such as aluminum and its alloys - Google Patents
Method of removing gases from molten light-metals such as aluminum and its alloys Download PDFInfo
- Publication number
- US1810801A US1810801A US38200029A US1810801A US 1810801 A US1810801 A US 1810801A US 38200029 A US38200029 A US 38200029A US 1810801 A US1810801 A US 1810801A
- Authority
- US
- United States
- Prior art keywords
- aluminum
- metals
- alloys
- gases
- furnace
- 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 - Lifetime
Links
Images
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
- C22B21/00—Obtaining aluminium
- C22B21/06—Obtaining aluminium refining
- C22B21/064—Obtaining aluminium refining using inert or reactive gases
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/20—Composition of the atmosphere above the float bath; Treating or purifying the atmosphere above the float bath
-
- 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
- C22B21/00—Obtaining aluminium
- C22B21/0084—Obtaining aluminium melting and handling molten aluminium
- C22B21/0092—Remelting scrap, skimmings or any secondary source aluminium
-
- 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
Definitions
- My invention relates to a method of removinggases from molten .llght-metals such as aluminum and its alloys.
- the chief object of the present invention is to provide a method which will overcome this difficulty.
- present invention consists in agitating or moving the layer or volume of air located on top and above the molten metal and preferably causing the same to circulate without allowing any fresh air to mix therewith and without changing to a perceptible degree the temperature of the molten metal or the atmosphere pressure.
- the character a designates the furnace provided with a charging door I) and a heating spiral a in a recess provided in With this object in view the 382,000, and in Germany .Tune 12, 1928.
- a circulating channel or passage 6 constituted by a vertical duct at one end of the furnace chamber, a similar duct at the .other end. thereof. and a horizontal tubular passage way interconnecting the said two ducts so as to form, together with the furnace chamber, a closed circuitous Way for the circulation of the air and gases enclosed in the furnace chamber.
- a fan f is inserted and arranged to be in connection with suitable means (not shown) for operation.
- a method of freeing a bath of 'molten lightmetals such as aluminum and aluminum alloys from gases occluded therein which consists in circulating the gases lo-' cated above the molten metal, without passing them through the metal and without substantially changing their volume and the temperature of the molten metal, and preventing the admission of fresh air to the furnace.
- An apparatus for freeing a bath of molten light-metals such as aluminum and aluminum-alloys of gases occluded therein, comprising aclosedmelting furnace with a and a fan arranged melting chamber at the bottom thereof, an
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
June 16,1931.
METHOD OF REMOV and Patented June 16, 1931 1 UNITED STATES PATENT OFFICE WILHELM T0131, 01 LAUTAWERK/LAUSITZ, GERMANY METHOD REMOVING GASES FROM MOLTEN LIGHT-METALS SUCH AS ALUMINUM AND ITS ALLOYS Application filed July 29, 1929, Serial No.
My invention relates to a method of removinggases from molten .llght-metals such as aluminum and its alloys.
It is a known fact, that light-metals such as aluminum and aluminum-alloys cannot be cast in molds immediately upon the production thereof, for the reason that they contain comparatively considerable quantities of gases, which will be detrimental to the cast cases where a must be substantially free from blow-holes or ust in accordance with the amount of metal under treatment.
This method however does not give satisfactory results; even if the molten metal is allowed to stand for a very prolonged length of time, a perfect liberation of gases cannot be obtained in this way especially in those particular casting necessarily pores.
The chief object of the present invention is to provide a method which will overcome this difficulty.
" present invention, consists in agitating or moving the layer or volume of air located on top and above the molten metal and preferably causing the same to circulate without allowing any fresh air to mix therewith and without changing to a perceptible degree the temperature of the molten metal or the atmosphere pressure. I
In the accompanying drawing forming a part of this specification and showing .for purposes of exemplific'ation a preferred form of the apparatus for carrying out the invention the only figure is a View in vertical section of a melting furnace illustrating somewhat diagrammatically the means employed for. the present purpose.
In the drawing the character a designates the furnace provided with a charging door I) and a heating spiral a in a recess provided in With this object in view the 382,000, and in Germany .Tune 12, 1928.
the top structure of the furnace for the accommodation of the said spiral. In the upper portion of the furnace there is a circulating channel or passage 6 constituted by a vertical duct at one end of the furnace chamber, a similar duct at the .other end. thereof. and a horizontal tubular passage way interconnecting the said two ducts so as to form, together with the furnace chamber, a closed circuitous Way for the circulation of the air and gases enclosed in the furnace chamber. In the horizontal passage-Way preferably at a point midway between its two ends a fan f is inserted and arranged to be in connection with suitable means (not shown) for operation. 1
It will be seen that when the fan f is -caused to revolve the air and gases contained in the furnace chamber will circulate through the passage or channel 6 as indicated by the arrows. Obviously any other appropriate means may be employed for bringing about the circulation of the gaseous matter in the furnace, just as any other suitable air-agitating means such as a pump or the like may be substituted fointhe fan 7. What I claim is: v I
1. A method of freeing a bath of 'molten lightmetals such as aluminum and aluminum alloys from gases occluded therein, which consists in circulating the gases lo-' cated above the molten metal, without passing them through the metal and without substantially changing their volume and the temperature of the molten metal, and preventing the admission of fresh air to the furnace. 2. An apparatus for freeing a 'bath of molten light-metals such as aluminum and heating means in the said chamber, a con-' duit for the circulating gases connecting an exit-opening in the melting chamber to an inlet-opening of the same in this circulation conduit.
3; An apparatus for freeing a bath of molten light-metals such as aluminum and aluminum-alloys of gases occluded therein, comprising aclosedmelting furnace with a and a fan arranged melting chamber at the bottom thereof, an
electrical heating means in the said chamber and above the metal-bath, a conduit for the circulatin gases connecting an exit-opening 5 in the me ting chamber to an inlet-opening of the same and a fan arranged in the circulation conduit.
In testimony whereof I afiix my signature.
HELM TODT.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1810801X | 1928-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1810801A true US1810801A (en) | 1931-06-16 |
Family
ID=7744281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US38200029 Expired - Lifetime US1810801A (en) | 1928-06-12 | 1929-07-29 | Method of removing gases from molten light-metals such as aluminum and its alloys |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1810801A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2826489A (en) * | 1953-12-18 | 1958-03-11 | Nyby Bruk Ab | Method for the manufacture of gas-pure metals and alloys |
| US3410680A (en) * | 1965-02-11 | 1968-11-12 | Vaw Ver Aluminium Werke Ag | Method of producing aluminum |
| FR2648154A1 (en) * | 1989-06-13 | 1990-12-14 | Pechiney Aluminium | METHOD AND DEVICE FOR DEGASSING AND MAINTAINING LOW HYDROGEN CONTENT IN LIQUID ALUMINUM ALLOYS DURING THEIR TRANSPORT INTO POCKETS |
-
1929
- 1929-07-29 US US38200029 patent/US1810801A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2826489A (en) * | 1953-12-18 | 1958-03-11 | Nyby Bruk Ab | Method for the manufacture of gas-pure metals and alloys |
| US3410680A (en) * | 1965-02-11 | 1968-11-12 | Vaw Ver Aluminium Werke Ag | Method of producing aluminum |
| FR2648154A1 (en) * | 1989-06-13 | 1990-12-14 | Pechiney Aluminium | METHOD AND DEVICE FOR DEGASSING AND MAINTAINING LOW HYDROGEN CONTENT IN LIQUID ALUMINUM ALLOYS DURING THEIR TRANSPORT INTO POCKETS |
| EP0403406A1 (en) * | 1989-06-13 | 1990-12-19 | Aluminium Pechiney | Process and apparatus for degassing and maintaining a low hydrogen content in molten aluminium alloys during transport in ladles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2140607A (en) | Method of and apparatus for casting deoxidized copper | |
| US1810801A (en) | Method of removing gases from molten light-metals such as aluminum and its alloys | |
| US2716790A (en) | Apparatus for casting metallic articles | |
| US2099208A (en) | Apparatus for preventing the oxidation of metals | |
| US770130A (en) | Apparatus for casting bars or rods. | |
| US2693353A (en) | Forced circulation cooling apparatus for continuous strip furnaces | |
| US1839106A (en) | Apparatus for performing metallurgical, smelting, and molding operations | |
| US443536A (en) | Art and means for covering and insulating wire | |
| US1822256A (en) | Process and apparatus for molding tubes | |
| US204307A (en) | Improvement in casting apparatus | |
| US2246322A (en) | Gas atmosphere in electric furnaces | |
| US3008201A (en) | Apparatus for the continuous formation of intermediates | |
| DE381265C (en) | Method and device for casting and cooling molded parts from melts | |
| DE490423C (en) | Electric annealing furnace and method of operating the same | |
| DE585745C (en) | Oven for hot chip-free hardening | |
| US975511A (en) | Ingot-mold. | |
| US2073200A (en) | Centrifugal casting | |
| US2177168A (en) | Back-up stand | |
| US2046505A (en) | Method of centrifugal casting | |
| US2745151A (en) | Method and apparatus for continuous casting | |
| US514578A (en) | Wasmihston | |
| US542715A (en) | Roasting-furnace | |
| US695090A (en) | Metal-mold for forming castings. | |
| US752636A (en) | Chocolate-cooling mechanism | |
| US322043A (en) | davis |