US2920955A - Aluminum-iron alloy production - Google Patents
Aluminum-iron alloy production Download PDFInfo
- Publication number
- US2920955A US2920955A US708377A US70837758A US2920955A US 2920955 A US2920955 A US 2920955A US 708377 A US708377 A US 708377A US 70837758 A US70837758 A US 70837758A US 2920955 A US2920955 A US 2920955A
- Authority
- US
- United States
- Prior art keywords
- aluminum
- iron
- molten
- bath
- container
- 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
- 229910000640 Fe alloy Inorganic materials 0.000 title description 4
- 238000004519 manufacturing process Methods 0.000 title description 4
- CYUOWZRAOZFACA-UHFFFAOYSA-N aluminum iron Chemical compound [Al].[Fe] CYUOWZRAOZFACA-UHFFFAOYSA-N 0.000 title description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 60
- 229910052782 aluminium Inorganic materials 0.000 claims description 45
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 45
- 229910052742 iron Inorganic materials 0.000 claims description 30
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 20
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 claims description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052791 calcium Inorganic materials 0.000 claims description 8
- 239000011575 calcium Substances 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical class [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000007792 addition Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 241000164466 Palaemon adspersus Species 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
Definitions
- This invention is based in the field of ferrous metallurgy and relates specifically to a process for producing uniform and homogeneous alloys of iron and aluminum containing substantial quantities of aluminum. This invention is related to an invention entitled Preparation of Iron Aluminum Alloys which is described and claimed in United States Letters Patent 2,804,387, issued August 27, 1957.
- iron aluminum alloys comprising substantial amounts of aluminum difliculty is experienced in producing a homogeneous melt and in avoiding refractory difiiculties occasioned by the exothermic solution of aluminum in iron. These difiicu'lties are particularly marked in alloys containing more than 6 percent aluminum.
- a completely deoxidized bath of molten iron is prepared in any acceptable manner.
- a completely deoxidized and dehydrogenated bath of molten aluminum is established in a ferrous container.
- This ferrous container holding the molten aluminum is placed within a suitable receptacle, as for example a commercial ladle, and the molten iron is poured in a stream upon the surface of the molten aluminum.
- the stream of molten iron courses downwardly through the molten aluminum alloying with the aluminum as it descends and then punctures the lower portion of the ferrous container and releases the alloy into the ladle.
- the ferrous container promptly dissolves in the alloy.
- the turbulence produced by this procedure results in a homogeneous alloy and the chilling eifect of the solid ferrous container prevents disastrous erosion of the refractories by the exothermic heat solution of aluminum in iron.
- the process of producing a homogeneous, ductile, iron aluminum alloy comprising producing a bath of molten iron containing a concentration of oxygen not substantially higher than that concentration which corresponds to the equilibrium between calcium and oxygen at the temperature of molten iron, establishing in a ferrous container a substantially hydrogen free bath of molten aluminum containing a concentration of oxygen not substantially higher than that concentration which corresponds to the equilibrium between calcium and oxygen at the temperature of the molten aluminum, placing the ferrous container in a ladle and pouring a stream of the deoxidized molten iron upon the molten aluminum in the ferrous container whereby the ferrous container is dissolved and a uniform alloy comprising iron and aluminum is produced, the weight of aluminum in the molten aluminum bath being suflicient to substantially elevate the temperature of the iron aluminum mix by exothermic heat of solution of aluminum in iron.
- the process of producing a homogeneous, ductile iron aluminum alloy comprising producing a rigidly deoxidized bath of molten iron, establishing in a ferrous container a substantially hydrogen free and rigidly deoxidized bath of molten aluminum, placing the ferrous container in a ladle and pouring a stream of the deoxidized molten iron upon the molten aluminum in the ferrous container whereby the ferrous container is dissolved and a homogeneous alloy comprising iron and aluminum is produced.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Description
United States Patent ALUMINUM-IRON ALLOY PRODUCTION William A. Goering, Detroit, Yeshwant P. Telang, Lincoln Park, and Victor F. Zackay, Dearborn, Mich., assignors to Ford Motor Company, Dearborn, Mich, a corporation of Delaware No Drawing. Application January 13, 1958 Serial No. 708,377
3 Claims. (Cl. 75-129) This invention is based in the field of ferrous metallurgy and relates specifically to a process for producing uniform and homogeneous alloys of iron and aluminum containing substantial quantities of aluminum. This invention is related to an invention entitled Preparation of Iron Aluminum Alloys which is described and claimed in United States Letters Patent 2,804,387, issued August 27, 1957.
In the production of iron aluminum alloys comprising substantial amounts of aluminum difliculty is experienced in producing a homogeneous melt and in avoiding refractory difiiculties occasioned by the exothermic solution of aluminum in iron. These difiicu'lties are particularly marked in alloys containing more than 6 percent aluminum.
In United States Letters Patent 2,804,387, mentioned above, will be found a complete description of the method of preparing a completely deoxidized iron bath and completely deoxidized and dehydrogenated aluminum bath.
In the execution of this invention a completely deoxidized bath of molten iron is prepared in any acceptable manner. Similarly, a completely deoxidized and dehydrogenated bath of molten aluminum is established in a ferrous container. This ferrous container holding the molten aluminum is placed within a suitable receptacle, as for example a commercial ladle, and the molten iron is poured in a stream upon the surface of the molten aluminum. The stream of molten iron courses downwardly through the molten aluminum alloying with the aluminum as it descends and then punctures the lower portion of the ferrous container and releases the alloy into the ladle. The ferrous container promptly dissolves in the alloy. The turbulence produced by this procedure results in a homogeneous alloy and the chilling eifect of the solid ferrous container prevents disastrous erosion of the refractories by the exothermic heat solution of aluminum in iron.
The following specific examples are given of this invention:
(A-90 X) Two hundred and fifty pounds of ingot iron were melted and deoxidized with 0.75 percent manganese, 0.378 percent aluminum, and 0.08 percent metallic calcium. (The calcium additions were completed in a total of 11 plungings.)
Twenty-five pounds of aluminum were melted, treated with calcium, degassed, covered with flux, and superheated to 1500 F. in an As-inch steel container. The container was placed in a preheated ladle, into which ingot iron (3100 F.) was tapped. The steel container disappeared instantly.
(A-91-X) The melt practice in this heat was similar to that in heat A-90-X, except that a fli-inch steel container was used and the calcium deoxidation of iron was omitted in order to minimize the hazard of spattering of molten iron. Manganese and aluminum additions were raised to 1 percent and 0.5 percent, respectively. The pouring temperature of the iron was lowered to 3000" F., and that of aluminum was 1480 F. at the time of transfer to the ladle. The steel container melted as soon as the molten metal completely surrounded the steel.
(A-92-X) The melt and deoxidation practice in this heat was identical to that in heat A-9l-X. The iron and aluminum temperatures, however, were lowered to 2950 F., and 1420 F., respectively. The A-inch container dissolved in the same manner as in heat A-9 l-X.
While this invention is particularly adapted for the production of ductile alloys containing 6 to 18 percent aluminum, as specified in United States Letters Patent 2,804,387, it is not so limited but may be employed whenever it is required to produce homogeneous iron aluminum alloys which are rich in aluminum.
We claim as our invention:
1. The process of producing a homogeneous, ductile, iron aluminum alloy comprising producing a bath of molten iron containing a concentration of oxygen not substantially higher than that concentration which corresponds to the equilibrium between calcium and oxygen at the temperature of molten iron, establishing in a ferrous container a substantially hydrogen free bath of molten aluminum containing a concentration of oxygen not substantially higher than that concentration which corresponds to the equilibrium between calcium and oxygen at the temperature of the molten aluminum, placing the ferrous container in a ladle and pouring a stream of the deoxidized molten iron upon the molten aluminum in the ferrous container whereby the ferrous container is dissolved and a uniform alloy comprising iron and aluminum is produced, the weight of aluminum in the molten aluminum bath being suflicient to substantially elevate the temperature of the iron aluminum mix by exothermic heat of solution of aluminum in iron.
2. The process of producing a homogeneous, ductile iron aluminum alloy comprising producing a rigidly deoxidized bath of molten iron, establishing in a ferrous container a substantially hydrogen free and rigidly deoxidized bath of molten aluminum, placing the ferrous container in a ladle and pouring a stream of the deoxidized molten iron upon the molten aluminum in the ferrous container whereby the ferrous container is dissolved and a homogeneous alloy comprising iron and aluminum is produced.
3. The process of producing a homogeneous alloy of iron and aluminum containing at least six percent aluminum and controlling the exothermic solution of the aluminum in iron comprising producing a bath of molten iron, establishing in a ferrous container a bath of molten aluminum, placing the ferrous container of molten aluminum in a receptacle and pouring upon the surface of the molten aluminum a stream of molten iron whereby the ferrous container is dissolved and a homogeneous alloy comprising iron and aluminum is produced, the weight of aluminum in the molten aluminum bath being sufficient to substantially elevate the temperature of the iron aluminum mix by exothermic heat of solution of aluminum in iron.
References Cited in the file of this patent UNITED STATES ,PATENTS 1,919,479 Randolph July 25, 1933 2,085,802 Hanly July 6, 1937 2,138,286 Wattson Nov. 29, 1938 2,252,371 Greenbow Aug. 12, 1941 2,481,599 Kinzel Sept. 13, 1949 2,705,196 Wever Mar. 29, 1955 2,785,970 Laria Mar. 19, 1957 FOREIGN PATENTS 656,396 Great Britain Aug. 22, 1951
Claims (1)
1. THE PROCESS OF PRODUCING A HOMOGENEOUS, DUCTILE, IRON ALUMINUM ALLOY COMPRISING PRODUCING A BATH OF MOLTEN IRON CONTAINING A CONCENTRATION OF OXYGEN NOT SUBSTANTIALLY HIGHER THAN THAT CONCENTRATION WHICH CORRESPONDS TO THE EQULIBRIUM BETWEEN CALCIUM AND OXYGEN AT THE TEMPERATURE OF MOLTEN IRON, ESTABLISHING IN A FERROUS CONTAINER A SUBSTANTIALLY HYDROGEN FREE BATH OF MOLTEN ALUMINUM CONTAINING A CONCENTRATION OF OXYGEN NOT SUBSTANTIALLY HIGHER THAN THAT CONCENTRATION WHICH CORRESPONDS TO THE EQUILIBRUM BETWEEN CALCIUM AND OXYGEN AT THE TEMPERATURE OF THE MOLTEN ALUMINUM, PLACING THE FERROUS CONTAINER IN A LADLE AND POURING A STREAM OF THE DEOXIDED MOLTEN IRON UPON THE MOLTEN ALUMINUM IN THE FERROUS CONTAINER WHEREBY THE FERROUS CONTAINER IS DISSOLVED AND A UNIFORM ALLOY COMPRISING IRON AND ALUMINUM IS PRODUCED, THE WEIGHT OF ALUMINUM IN THE MOLTEN ALUMINUM BATH BEING SUFFICIENT TO SUBSTANTIALLY ELEVATE THE TEMPERATURE OF THE IRON ALUMINUM MIX BY EXOTHERMIC HEAT OF SOLUTION OF ALUMINUM IN IRON.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US708377A US2920955A (en) | 1958-01-13 | 1958-01-13 | Aluminum-iron alloy production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US708377A US2920955A (en) | 1958-01-13 | 1958-01-13 | Aluminum-iron alloy production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2920955A true US2920955A (en) | 1960-01-12 |
Family
ID=24845564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US708377A Expired - Lifetime US2920955A (en) | 1958-01-13 | 1958-01-13 | Aluminum-iron alloy production |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2920955A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2210665A1 (en) * | 1972-03-06 | 1973-09-20 | Degussa | PACKAGING FOR STORAGE OF AIR- AND MOISTURE-SENSITIVE METALLURGICAL ADDITIVES |
| US4035183A (en) * | 1975-08-18 | 1977-07-12 | Chuo Denki Kogyo Co., Ltd. | Method for making aluminum-containing ferroalloy |
| US4126446A (en) * | 1972-03-06 | 1978-11-21 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler | Packages for the storage of air and moisture sensitive metallurgical additives and the use of such packages |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1919479A (en) * | 1932-05-26 | 1933-07-25 | Ac Spark Plug Co | Process of making alloys |
| US2085802A (en) * | 1935-08-22 | 1937-07-06 | Charles Hardy Inc | Treatment of metals |
| US2138286A (en) * | 1938-01-21 | 1938-11-29 | Kansas City Smelting Company | Metal toning and treating capsule |
| US2252371A (en) * | 1939-04-18 | 1941-08-12 | American Smelting Refining | Method of forming self-fluxing ingots |
| US2481599A (en) * | 1946-05-18 | 1949-09-13 | Union Carbide & Carbon Corp | Alloy addition agent |
| GB656396A (en) * | 1946-06-20 | 1951-08-22 | Jean Georges Platon | Improvements in and relating to the refining of oxidised steels and the manufacture of alloy steels |
| US2705196A (en) * | 1952-02-20 | 1955-03-29 | Manufacturers Chemical Corp | Process for de-oxidizing a molten metal |
| US2785970A (en) * | 1953-12-03 | 1957-03-19 | Carborundum Co | Addition agents in manufacture of steel |
-
1958
- 1958-01-13 US US708377A patent/US2920955A/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1919479A (en) * | 1932-05-26 | 1933-07-25 | Ac Spark Plug Co | Process of making alloys |
| US2085802A (en) * | 1935-08-22 | 1937-07-06 | Charles Hardy Inc | Treatment of metals |
| US2138286A (en) * | 1938-01-21 | 1938-11-29 | Kansas City Smelting Company | Metal toning and treating capsule |
| US2252371A (en) * | 1939-04-18 | 1941-08-12 | American Smelting Refining | Method of forming self-fluxing ingots |
| US2481599A (en) * | 1946-05-18 | 1949-09-13 | Union Carbide & Carbon Corp | Alloy addition agent |
| GB656396A (en) * | 1946-06-20 | 1951-08-22 | Jean Georges Platon | Improvements in and relating to the refining of oxidised steels and the manufacture of alloy steels |
| US2705196A (en) * | 1952-02-20 | 1955-03-29 | Manufacturers Chemical Corp | Process for de-oxidizing a molten metal |
| US2785970A (en) * | 1953-12-03 | 1957-03-19 | Carborundum Co | Addition agents in manufacture of steel |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2210665A1 (en) * | 1972-03-06 | 1973-09-20 | Degussa | PACKAGING FOR STORAGE OF AIR- AND MOISTURE-SENSITIVE METALLURGICAL ADDITIVES |
| US4126446A (en) * | 1972-03-06 | 1978-11-21 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler | Packages for the storage of air and moisture sensitive metallurgical additives and the use of such packages |
| US4035183A (en) * | 1975-08-18 | 1977-07-12 | Chuo Denki Kogyo Co., Ltd. | Method for making aluminum-containing ferroalloy |
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