US3910341A - Methods of adding reactive metals to form a remelting electrode - Google Patents
Methods of adding reactive metals to form a remelting electrode Download PDFInfo
- Publication number
- US3910341A US3910341A US482062A US48206274A US3910341A US 3910341 A US3910341 A US 3910341A US 482062 A US482062 A US 482062A US 48206274 A US48206274 A US 48206274A US 3910341 A US3910341 A US 3910341A
- Authority
- US
- United States
- Prior art keywords
- reactive metal
- metal
- mold
- reactive
- remelting
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 79
- 239000002184 metal Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 31
- 150000002739 metals Chemical class 0.000 title claims abstract description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 239000011261 inert gas Substances 0.000 claims description 7
- 229910052746 lanthanum Inorganic materials 0.000 claims description 5
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 3
- 229910000858 La alloy Inorganic materials 0.000 claims description 2
- 229910000946 Y alloy Inorganic materials 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910018250 LaSi Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 lanthanum Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000010313 vacuum arc remelting Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/20—Measures not previously mentioned for influencing the grain structure or texture; Selection of compositions therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/12—Appurtenances, e.g. for sintering, for preventing splashing
Definitions
- ABSTRACT A method for adding reactive metals to a molten metal bath by forming said reactive metal into an elongated member, suspending said member generally lengthwise vertically of a mold and pouring metal to be treated into said mold, to make said formed member an integral part of the molten metal as it rises in the mold and is cooled.
- This invention relates to methods of adding reactive metals to molten baths and particularly to a method of adding reactive metals to a molten metal ingot or casting such as an electrode for electroslag remelting (ESR), vacuum arc remelting, plasma arc remelting, electron beam remelting or similar remelting techniques.
- ESR electroslag remelting
- vacuum arc remelting plasma arc remelting
- electron beam remelting or similar remelting techniques.
- the reactive metal in the cast electrode may be desirable to encapsulate the reactive metal in the cast electrode as an integral but distinct core so that it is released during subsequent remelting of the electrode rather than during casting of the electrode as just described.
- a tube or member e.g. of thick walled construction, such that the member is not distributed into the molten metal but is encapsulated as the metal cools as an elongated core and is then subsequently melted during the remelting operation.
- an inert gas such as argon.
- FIG. 1 is a vertical section through an apparatus for practicing this invention.
- FIG. 2 is a section on the line IIII of FIG. 1.
- an ESR electrode mold on a stool 11 both of conventional form.
- a tube 12 filled with LaSi 13 (or other reactive metal or alloy) is suspended by a chain 14 from the bottom of a tundish 15 into which molten metal is poured and delivered through nozzle 16 into mold 10.
- the mold 10 is purged with inert gas. As the molten metal 17 rises in mold 10, the tube 12 is melted off and the reactive metal is dissolved into the metal.
- the axial member need not be a tube filled with reactive metal but may be an elongated formed member of the reactive metal in a compatible matrix.
- the tube 12 may be restricted along its length so as to compartment the reactive metal and prevent its flowing out of the end when the end is melted off as pouring beings. This restriction may be accomplished by pinching, crimping or otherwise constricting or compartmenting the tube at spaced intervals along its length. This restriction will also provide, in effect, successive metered charges of reactive metal as the molten metal to be treated rises in the mold.
- Inherent in this invention are a number of advantages not available in present methods. These are: (A) the lanthanum or other reactive metal addition is distributed uniformly from top to bottom of the cast electrode, (B) there is no loss of the reactive metal by reaction with refractories such as those found in ladles, furnaces, or tundishes because the molds are not lined with ceramic and solidification at the mold metal interface is almost instantaneous, (C) because slag is not present, with the reactive metal, there is no loss of the addition via slag-addition interaction, (D) reaction of the reactive metal with air is minimal because the addition melts after it is submerged in molten alloy and because the mold represents a near closed system from which air can be purged by argon or other inert gas, (E) because losses due to reactions with air and refractory is minimal the amount of undesirable oxide inclusions in the electrode are minimal, (F) because reactive metal recovery is high, less of it need be added and therefore costs are reduced especially when the more expensive elements
- yttrium is yttrium or an alloy of yttrium.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US482062A US3910341A (en) | 1974-06-24 | 1974-06-24 | Methods of adding reactive metals to form a remelting electrode |
CA229,837A CA1058378A (en) | 1974-06-24 | 1975-06-20 | Methods of adding reactive metals |
FR7519609A FR2276124A1 (fr) | 1974-06-24 | 1975-06-23 | Procede d'addition de metaux reactifs |
DE19752527953 DE2527953A1 (de) | 1974-06-24 | 1975-06-23 | Verfahren zum zusetzen reaktiver metalle zu einem gusstueck aus geschmolzenem metall |
SE7507258A SE412711B (sv) | 1974-06-24 | 1975-06-24 | Sett att forma en omsmeltningselektrod innehallande reaktiva metaller |
GB26667/75A GB1519783A (en) | 1974-06-24 | 1975-06-24 | Methods of adding selected metals to a molten metal casting |
JP50078584A JPS5148723A (enrdf_load_html_response) | 1974-06-24 | 1975-06-24 | |
IT68621/75A IT1036360B (it) | 1974-06-24 | 1975-06-24 | Procedimento per la aggiunta di metalli reattivi ad un bagno di metallo fuso |
US05/636,196 USRE29035E (en) | 1974-06-24 | 1975-11-28 | Methods of adding reactive metals to form a remelting electrode |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US482062A US3910341A (en) | 1974-06-24 | 1974-06-24 | Methods of adding reactive metals to form a remelting electrode |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/636,196 Reissue USRE29035E (en) | 1974-06-24 | 1975-11-28 | Methods of adding reactive metals to form a remelting electrode |
Publications (1)
Publication Number | Publication Date |
---|---|
US3910341A true US3910341A (en) | 1975-10-07 |
Family
ID=23914493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US482062A Expired - Lifetime US3910341A (en) | 1974-06-24 | 1974-06-24 | Methods of adding reactive metals to form a remelting electrode |
Country Status (8)
Country | Link |
---|---|
US (1) | US3910341A (enrdf_load_html_response) |
JP (1) | JPS5148723A (enrdf_load_html_response) |
CA (1) | CA1058378A (enrdf_load_html_response) |
DE (1) | DE2527953A1 (enrdf_load_html_response) |
FR (1) | FR2276124A1 (enrdf_load_html_response) |
GB (1) | GB1519783A (enrdf_load_html_response) |
IT (1) | IT1036360B (enrdf_load_html_response) |
SE (1) | SE412711B (enrdf_load_html_response) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5130535A (en) * | 1974-09-09 | 1976-03-15 | Sumitomo Metal Ind | Gan y konoseizoho |
JPS54141334A (en) * | 1978-04-26 | 1979-11-02 | Kawasaki Steel Co | Metal addition into molten metal in cast mold |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1166167A (en) * | 1912-04-13 | 1915-12-28 | Leonard G Woods | Forming castings. |
US1180248A (en) * | 1914-04-07 | 1916-04-18 | Otto H De Lapotterie | Process of producing compound metal bodies. |
US1703417A (en) * | 1929-02-26 | oxi hamilton |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4532100Y1 (enrdf_load_html_response) * | 1967-08-09 | 1970-12-09 | ||
BE795689A (fr) * | 1972-03-06 | 1973-06-18 | Mitsubishi Heavy Ind Ltd | Fabrication d'articles metalliques |
-
1974
- 1974-06-24 US US482062A patent/US3910341A/en not_active Expired - Lifetime
-
1975
- 1975-06-20 CA CA229,837A patent/CA1058378A/en not_active Expired
- 1975-06-23 FR FR7519609A patent/FR2276124A1/fr active Granted
- 1975-06-23 DE DE19752527953 patent/DE2527953A1/de not_active Withdrawn
- 1975-06-24 IT IT68621/75A patent/IT1036360B/it active
- 1975-06-24 GB GB26667/75A patent/GB1519783A/en not_active Expired
- 1975-06-24 SE SE7507258A patent/SE412711B/xx unknown
- 1975-06-24 JP JP50078584A patent/JPS5148723A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1703417A (en) * | 1929-02-26 | oxi hamilton | ||
US1166167A (en) * | 1912-04-13 | 1915-12-28 | Leonard G Woods | Forming castings. |
US1180248A (en) * | 1914-04-07 | 1916-04-18 | Otto H De Lapotterie | Process of producing compound metal bodies. |
Also Published As
Publication number | Publication date |
---|---|
JPS5148723A (enrdf_load_html_response) | 1976-04-27 |
IT1036360B (it) | 1979-10-30 |
SE412711B (sv) | 1980-03-17 |
FR2276124A1 (fr) | 1976-01-23 |
DE2527953A1 (de) | 1976-01-15 |
CA1058378A (en) | 1979-07-17 |
SE7507258L (sv) | 1975-12-29 |
GB1519783A (en) | 1978-08-02 |
FR2276124B1 (enrdf_load_html_response) | 1981-09-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1018383B1 (en) | Die casting method | |
US20090133850A1 (en) | Systems for centrifugally casting highly reactive titanium metals | |
US3208117A (en) | Casting method | |
JP3003914B2 (ja) | 活性金属を含有する銅合金の製造方法 | |
US3548915A (en) | New procedure for chill casting beryllium composite | |
EP0543290A3 (en) | A process for ingot casting employing a magnetic field for reducing macrosegregation and associated apparatus and ingot | |
US5186234A (en) | Cast compsoite material with high silicon aluminum matrix alloy and its applications | |
RU93054777A (ru) | Способ получения реоотлитых слитков, предназначенных для изготовления и обладающих высокими механическими характеристиками отливок литьем под давлением | |
US3789911A (en) | Process for continuous continuous casting of hot liquid metals | |
RU2003120795A (ru) | Обработка расплавленных металлов движущейся электрической дугой | |
US3623862A (en) | Use of rare earth elements for reducing nozzle deposits in the continuous casting of steel process | |
US3610320A (en) | Unit for manufacturing hollow metal ingots | |
US3910341A (en) | Methods of adding reactive metals to form a remelting electrode | |
US3434527A (en) | Method for ultra-high purity precision casting | |
USRE29035E (en) | Methods of adding reactive metals to form a remelting electrode | |
CA1178014A (en) | Foundry practices | |
US4036278A (en) | Process for the production of large steel ingots | |
JPH06263B2 (ja) | 連続鋳造法 | |
US3470936A (en) | Method for producing high purity copper castings | |
JPS6352983B2 (enrdf_load_html_response) | ||
US3508914A (en) | Methods of forming and purifying nickel-titanium containing alloys | |
US3603374A (en) | Methods of producing large steel ingots | |
US3455373A (en) | Apparatus for ultrahigh purity precision casting | |
EP3941657B1 (en) | A method for manufacturing a steel ingot | |
JPH08215830A (ja) | マグネシウム合金の溶解・鋳造方法 |