EP0077282B1 - Dispositif pour le traitement, au passage, d'un courant de métal ou alliage liquide à base d'aluminium ou de magnésium - Google Patents
Dispositif pour le traitement, au passage, d'un courant de métal ou alliage liquide à base d'aluminium ou de magnésium Download PDFInfo
- Publication number
- EP0077282B1 EP0077282B1 EP82420144A EP82420144A EP0077282B1 EP 0077282 B1 EP0077282 B1 EP 0077282B1 EP 82420144 A EP82420144 A EP 82420144A EP 82420144 A EP82420144 A EP 82420144A EP 0077282 B1 EP0077282 B1 EP 0077282B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid metal
- treatment device
- horizontal axis
- metal
- treatment
- 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
Links
- 238000011282 treatment Methods 0.000 title claims abstract description 43
- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 25
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 16
- 239000000956 alloy Substances 0.000 title claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 14
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 7
- 239000011777 magnesium Substances 0.000 title claims abstract description 7
- 239000004411 aluminium Substances 0.000 title claims 2
- 238000009434 installation Methods 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 claims abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 39
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 238000007654 immersion Methods 0.000 claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 13
- 230000004907 flux Effects 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- VVTRNRPINJRHBQ-UHFFFAOYSA-N [Cl].[Ar] Chemical compound [Cl].[Ar] VVTRNRPINJRHBQ-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910001234 light alloy Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- UDHXJZHVNHGCEC-UHFFFAOYSA-N Chlorophacinone Chemical compound C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)C(=O)C1C(=O)C2=CC=CC=C2C1=O UDHXJZHVNHGCEC-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 241001644893 Entandrophragma utile Species 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 241001275902 Parabramis pekinensis Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910002065 alloy metal Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- -1 bronzes and brasses Chemical compound 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000021183 entrée Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001869 rapid Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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
- C22B21/066—Treatment of circulating aluminium, e.g. by filtration
-
- 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
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/20—Obtaining alkaline earth metals or magnesium
- C22B26/22—Obtaining magnesium
-
- 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
- C22B9/055—Refining by treating with gases, e.g. gas flushing also refining by means of a material generating gas in situ while the metal is circulating, e.g. combined with filtration
Definitions
- the present invention relates to a device for the treatment in passing of a stream of metal or liquid alloy based on aluminum or magnesium.
- metal or liquid metal unalloyed aluminum, unalloyed magnesium and alloys based on one or the other of these two metals.
- the pockets generally consisting of a metal container with refractory lining, whether or not provided with an external heating means , or integrated into the lining and, in most cases, divided into two compartments by a flat or circular partition.
- One or both of the compartments can be filled with a filtering substance often consisting of alumina granules.
- One of the compartments may include a means for injecting a gas or a mixture of inert gas (nitrogen, argon) and / or active gas (chlorine).
- the devices currently in use are not entirely satisfactory, both with regard to the final purity of the metal produced (hydrogen content and so-called “ultimate” inclusions, of the order of 5 micrometers or less), than with regard to ease of use and handling: heating, scouring, rapid passage from an alloy to a non-alloy metal, or from an alloy to another type of alloy, emptying of pocket bottoms, change of bed filtering.
- the object of the invention is a device for the treatment, in passing, of a stream of liquid metal, consisting of a pocket, comprising an external metal casing and an internal refractory lining, a chute for the entry of liquid metal at the rear and a pouring spout of the treated metal at the front, and at least one internal partition leaving with the bottom of the pocket, a space for the passage of liquid metal and delimiting a first rear compartment and at least a second front compartment opening onto the pouring spout, said pocket being fixed to a support cradle connected to an articulated frame with respect to which said cradle can tilt forward around a first horizontal axis passing substantially through the end of the spout casting, the articulated frame itself being connected to a fixed frame with respect to which said articulated frame can tilt around a second horizontal axis.
- the first horizontal axis is substantially perpendicular to the direction of flow of the liquid metal in the pocket.
- the second horizontal axis can be parallel or perpendicular to the first, which ensures rear or lateral tilting.
- the device further comprises a means of internal heating in the pocket, removable and independent of the refractory lining. It may also be provided with means for injecting a liquid, solid, gaseous or vaporized treatment agent, and with means for alternately introducing and removing the internal heating means and the means for injecting the agent. treatment.
- the internal lining comprises, in a conventional manner, a first heat-insulating layer with low thermal conductivity in contact with the external metal shell, and a refractory layer, chemically inert with respect to the metal and the treatment agents.
- the bag can be provided, in the second compartment, with means for filtering the liquid metal.
- It also includes a waterproof, removable cover, part of which is separable or movable to allow the removal of the dross formed during treatment.
- FIG. 1 shows the different elements constituting the entire device. The following figures show the construction details.
- the platform (1) is a rigid element which constitutes the main fixed chassis. Preferably, it includes setting screws (2) to adjust the horizontality of the assembly.
- the pocket itself (3) is supported by the cradle (4) formed essentially by two arms on which the pocket (3) comes to bear by lugs (5). It is fixed by removable means such as bolts. Two screw stops (6) make it possible to adjust the horizontality of the pocket in the working position.
- the cradle (4) is articulated, relative to the articulated frame (7), on the two bearings (8) whose common axis (9) passes substantially through the pouring spout (10).
- the chassis (7) is articulated by the two bearings (11) on two support elements (12) rigidly connected to the platform (1).
- the axis of rotation (13) of the articulated frame (7) relative to the support elements (12) is horizontal and parallel to the axis of rotation of the cradle.
- This arrangement is not compulsory and the axis of rotation (13) of the articulated frame could also be perpendicular to the axis of rotation (9) of the cradle, because the two rotational movements are controlled, independently of one on the other, by a double system of pairs of jacks (14) and (15).
- the slope of the front part (16) of the refractory lining (17) makes it possible to obtain this total emptying without raising the pocket to the vertical, which reduces the required stroke of the cylinder (14).
- the internal lining (17) supported by the metal carcass (19) is preferably made up of two parts: an external part in contact with the metal carcass, which is of low thermal conductivity and acts as an insulator, and a part internal, in contact with the liquid metal, which is refractory and chemically inert with respect to the liquid metal and the various treatment agents.
- the internal partition (18) delimits a first compartment (20) situated at the rear of the pocket and a second compartment (21) situated at the front, the terms "rear • and” before being taken with respect to the direction of circulation liquid metal which enters through the chute (22) and flows through the spout (10).
- the inlet chute (22) is arranged on one side of the rear compartment. If the solution of lateral tilting of the pocket had been chosen, the chute could be arranged either laterally, and on the side opposite to the tilting, or at the rear of the pocket.
- connection between the pouring spout (10) and the flow channel (23) is effected by the usual means known to specialists in the foundry of light alloys.
- the internal partition (18) is preferably made of a material which is a good conductor of heat, for a reason which will be specified a little later. It is preferable that it be removable without damaging the lining (17).
- the pocket, object of the invention comprises several partitions arranged in baffles delimiting several compartments that the liquid metal passes through successively, each compartment ensuring the same treatment or a different treatment: filtration, gas injection inert or active, mixing with a flow, etc.
- the pocket (3) further comprises a cover (24) also constituted by a metal frame and a refractory and heat-resistant lining.
- the part (25) of the cover which surmounts the rear of the pocket, is removable or liftable, for example by rotation about the axis (26).
- the rear part (27) of the lining (17) is slightly inclined so that, the movable part (25) of the cover being raised, these dross are easily removed with a simple manual scraping tool, without disturbing the treatment.
- the cover rests on the pocket in a substantially sealed manner, thanks to the seals (28). In this way, the evacuation of gaseous products possibly injected into the metal is carried out only by the inlet chute (22), which facilitates their capture.
- the cover (24) is provided with an orifice (29) intended for the introduction into the pocket either of a heating means, or of a means of injection into the liquid metal of a treatment agent, the term “agent designating any solid, liquid, gaseous or vaporized product used to treat the metal, in the sense defined above.
- the cover (24) may include two or more orifices (29) for the alternating introduction of several heating or injection means.
- the cover (24) is released, for example, by raising into position (24 ').
- the cover is provided with a stirrup (30A) connected to a mechanical or hydraulic lifting device, of any known type, which finds its place in the lifting column (31) secured to the platform (1).
- the active element of the immersion heater (32) is, for example, an electrical resistance protected by a sheath that is good conductor of heat, resistant to thermal shock, waterproof and chemically resistant to molten metal.
- a 20 kW immersion heater provides preheating of the empty bag from 20 to 700 ° C. in about thirty hours, and maintaining the temperature of the pocket, full or empty, around 750 ° C with adequate regulation. It can also heat the metal at a speed of around 60 ° C / hour. Thanks to the good thermal conductivity of the partition (18), the heating also acts effectively on the second compartment (21).
- the support of the immersion heater (32) which, moreover, ensures the passage and protection of the power cables and temperature sensors, comprises a conical sleeve (33), the conicity of which cooperates with the conicity of the orifice (29) of the cover, to ensure both precise positioning and a tight connection.
- the treatment agent injection device (34), whatever it may be, comprises a conical sleeve (33) which performs the same function.
- the manipulator In order to ensure rapid exchange between the immersion heater (32) and the injector (34), these two members are arranged on a manipulator (36) supported by the column (37).
- the manipulator is connected to a mechanical or hydraulic lifting means, along the column (37) which can, when the manipulator ( 36) is in the high position (36 '), rotate around its axis to ensure the exchange and the return to the working position of the immersion heater (32) or of the injector (34).
- the two columns (31) and (37) are preferably connected by a horizontal crosspiece (38) easily removable for possible removal of the pocket (3) by an external handling means such as monorail hoist, overhead crane, etc. ...
- the design of the device, object of the invention ensures very great flexibility of use, while allowing the implementation and the combination of the various known processes for the ultimate purification of aluminum and aluminum-based alloys. , magnesium and magnesium alloys.
- each of the couples opens separately at the same point (45 ) from the lateral surface of the cylinder so that a fine liquid-gas dispersion is formed there, which is then distributed in the bath by means of the vanes (40).
- the injector can be supplied with treatment agent, from the device claimed in European patent application EP-A-0 061 411 and which comprises a reservoir of halogenated product liquid at room temperature connected to the inlet a metering micropump, the output of which flows on a vaporizer provided with a heating means, and connected to a source of inert gas, provided with a pressure and flow rate adjustment means, and a connecting pipe between the vaporizer and the injector (34).
- the metal being treated in the first compartment can, in addition, and in a known manner, receive a cover of liquid or solid halogenated flux at the treatment temperature.
- the second compartment can receive different filtration devices such as: alumina beads of suitable particle size, or flux grains.
- the holding in place and the exchange of such filtering beds based on solid flux grains can be carried out according to the interchangeable cartridge technique described in French patent 2,463,816 (SERVIMETAL).
- the wall, or part of the wall of the cartridge can act as a partition between the first and the second compartment.
- Filtration of the metal can also be obtained by the use of filter blocks in sintered flow, described in French patent 2,446,862 (SERVIMETAL).
- the first has a capacity of 600 kg of liquid aluminum and is intended to process up to 10 tonnes / hour of metal. At this rate, the average duration of stay of the metal in the pocket is of the order of three and a half minutes.
- the injector used is the rotor with coupled channels, described above, rotating at 150 rpm ( Figures 5 and 6). An argon-chlorine mixture containing 5% chlorine was injected, at a rate of 4 Nm 3 / hour for a flow rate of 6 tonnes / hour of metal to be treated.
- the second has a capacity of 2400 kg of liquid aluminum and it can process up to 40 tonnes / hour of metal. It includes two rotary injectors with coupled channels, delivering a total of 16 Nm 3 / hour of the same argon-chlorine mixture at 5% chlorine.
- the treatment bag, object of the invention has a certain number of decisive advantages over the bags currently in use.
- the device, object of the invention lends itself particularly well to full automation, all maneuvers of tilting front and rear, lifting and fitting the cover, lifting, swapping and laying the immersion heater and the injector, preheating, temperature maintenance, etc. which can be programmed, with the various safety features and prohibitions necessary, and centralized on a console placed at a distance, which also controls the hydraulic power station controlling the various tilting and raising / lowering cylinders for the cover, the immersion heater and the injector.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- ing And Chemical Polishing (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Chemical Treatment Of Metals (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Furnace Details (AREA)
- Tunnel Furnaces (AREA)
- Ceramic Products (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82420144T ATE11573T1 (de) | 1981-10-14 | 1982-10-12 | Vorrichtung zur durchlaufenden behandlung von fluessigen aluminium- oder magnesiummetallen oder -metallegierungen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8119710A FR2514370B1 (fr) | 1981-10-14 | 1981-10-14 | Dispositif pour le traitement, au passage, d'un courant de metal ou alliage liquide a base d'aluminium ou de magnesium |
FR8119710 | 1981-10-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0077282A1 EP0077282A1 (fr) | 1983-04-20 |
EP0077282B1 true EP0077282B1 (fr) | 1985-01-30 |
Family
ID=9263215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82420144A Expired EP0077282B1 (fr) | 1981-10-14 | 1982-10-12 | Dispositif pour le traitement, au passage, d'un courant de métal ou alliage liquide à base d'aluminium ou de magnésium |
Country Status (27)
Country | Link |
---|---|
US (1) | US4443004A (cs) |
EP (1) | EP0077282B1 (cs) |
JP (2) | JPS5874248A (cs) |
KR (1) | KR890001787B1 (cs) |
AT (1) | ATE11573T1 (cs) |
AU (1) | AU550685B2 (cs) |
BR (1) | BR8205976A (cs) |
CA (1) | CA1193096A (cs) |
CS (1) | CS264309B2 (cs) |
DD (1) | DD203747A5 (cs) |
DE (1) | DE3262161D1 (cs) |
DK (1) | DK158324C (cs) |
ES (1) | ES516442A0 (cs) |
FR (1) | FR2514370B1 (cs) |
GR (1) | GR70731B (cs) |
HK (1) | HK27786A (cs) |
HU (1) | HU191190B (cs) |
IE (1) | IE53901B1 (cs) |
IN (1) | IN156683B (cs) |
NO (1) | NO160529C (cs) |
PL (1) | PL130884B1 (cs) |
RO (1) | RO85570B (cs) |
SU (1) | SU1279535A3 (cs) |
TR (1) | TR21776A (cs) |
UA (1) | UA5552A1 (cs) |
YU (1) | YU43099B (cs) |
ZA (1) | ZA827492B (cs) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60204842A (ja) * | 1984-03-29 | 1985-10-16 | Showa Alum Corp | 溶融マグネシウムの処理方法 |
JPS60208432A (ja) * | 1984-03-30 | 1985-10-21 | Showa Alum Corp | 溶融金属の処理装置 |
FR2562912B2 (fr) * | 1984-04-13 | 1989-11-17 | Pechiney Aluminium | Perfectionnement au dispositif de traitement, au passage, d'un courant de metal ou alliage liquide a base d'aluminium ou de magnesium |
DE3564449D1 (en) * | 1984-11-29 | 1988-09-22 | Foseco Int | Rotary device, apparatus and method for treating molten metal |
JPS62205235A (ja) * | 1986-03-05 | 1987-09-09 | Showa Alum Corp | 溶融金属の処理装置 |
JPH01271059A (ja) * | 1988-04-21 | 1989-10-30 | Honda Kinzoku Gijutsu Kk | 金属連続溶解保持炉 |
FR2652018B1 (fr) * | 1989-09-20 | 1994-03-25 | Pechiney Rhenalu | Dispositif de traitement au moyen de gaz d'un bain liquide d'aluminium de grande surface maintenu a l'etat stationnaire dans un four. |
FR2669041B1 (fr) * | 1990-11-09 | 1994-02-04 | Sfrm | Procede pour le traitement d'un metal en fusion et son transfert dans un espace recepteur et systeme pour la mise en óoeuvre de ce procede. |
US5234202A (en) * | 1991-02-19 | 1993-08-10 | Praxair Technology, Inc. | Gas dispersion apparatus for molten aluminum refining |
US5364078A (en) * | 1991-02-19 | 1994-11-15 | Praxair Technology, Inc. | Gas dispersion apparatus for molten aluminum refining |
FR2712217B1 (fr) * | 1993-11-12 | 1995-12-22 | Pechiney Rhenalu | Poche de traitement de métal liquide de faible encombrement et de performances améliorées. |
US5527381A (en) * | 1994-02-04 | 1996-06-18 | Alcan International Limited | Gas treatment of molten metals |
US5660614A (en) * | 1994-02-04 | 1997-08-26 | Alcan International Limited | Gas treatment of molten metals |
US5718416A (en) * | 1996-01-30 | 1998-02-17 | Pyrotek, Inc. | Lid and containment vessel for refining molten metal |
US6217631B1 (en) * | 1996-07-17 | 2001-04-17 | C. Edward Eckert | Method and apparatus for treating molten aluminum |
US6056803A (en) * | 1997-12-24 | 2000-05-02 | Alcan International Limited | Injector for gas treatment of molten metals |
JP4248798B2 (ja) * | 2002-02-14 | 2009-04-02 | 株式会社パイロテック・ジャパン | インライン脱ガス装置 |
JP6317604B2 (ja) * | 2014-03-20 | 2018-04-25 | 東京窯業株式会社 | 気泡の放出分散装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2840463A (en) * | 1954-05-13 | 1958-06-24 | Aluminum Co Of America | Degassing and purifying molten aluminous metal |
DE1207554B (de) * | 1962-03-21 | 1965-12-23 | Bbc Brown Boveri & Cie | Wahlweise um zwei verschiedene Kippachsen kippbarer rinnenloser Induktions-Tiegelofen |
DE1758685A1 (de) * | 1968-08-23 | 1971-03-11 | Hermann Zepernick | Tiegelofen mit zwei Schwenkachsen |
US3870511A (en) * | 1971-12-27 | 1975-03-11 | Union Carbide Corp | Process for refining molten aluminum |
JPS5043129U (cs) * | 1973-08-23 | 1975-05-01 | ||
US3958980A (en) * | 1974-11-08 | 1976-05-25 | Union Carbide Corporation | Process for removing alkali-metal impurities from molten aluminum |
GB1522957A (en) * | 1974-12-12 | 1978-08-31 | British Steel Corp | Removal of sulphur from molten metal |
CH595452A5 (cs) * | 1975-04-29 | 1978-02-15 | Alusuisse | |
JPS5237518A (en) * | 1975-09-22 | 1977-03-23 | Hitachi Ltd | Automatic pouring device |
US4008884A (en) * | 1976-06-17 | 1977-02-22 | Alcan Research And Development Limited | Stirring molten metal |
US4040610A (en) * | 1976-08-16 | 1977-08-09 | Union Carbide Corporation | Apparatus for refining molten metal |
US4090054A (en) * | 1976-10-12 | 1978-05-16 | Brown Boveri Corporation | Electrical preheating apparatus |
-
1981
- 1981-10-14 FR FR8119710A patent/FR2514370B1/fr not_active Expired
-
1982
- 1982-08-24 IN IN980/CAL/82A patent/IN156683B/en unknown
- 1982-09-28 US US06/425,448 patent/US4443004A/en not_active Expired - Fee Related
- 1982-10-07 CA CA000413030A patent/CA1193096A/fr not_active Expired
- 1982-10-07 CS CS827178A patent/CS264309B2/cs unknown
- 1982-10-07 PL PL1982238536A patent/PL130884B1/pl unknown
- 1982-10-08 DD DD82243876A patent/DD203747A5/de not_active IP Right Cessation
- 1982-10-08 YU YU2273/82A patent/YU43099B/xx unknown
- 1982-10-08 JP JP57177457A patent/JPS5874248A/ja active Granted
- 1982-10-08 TR TR21776A patent/TR21776A/xx unknown
- 1982-10-11 GR GR69500A patent/GR70731B/el unknown
- 1982-10-11 RO RO108775A patent/RO85570B/ro unknown
- 1982-10-11 SU SU3500155A patent/SU1279535A3/ru active
- 1982-10-11 UA UA3500155A patent/UA5552A1/uk unknown
- 1982-10-12 EP EP82420144A patent/EP0077282B1/fr not_active Expired
- 1982-10-12 AT AT82420144T patent/ATE11573T1/de active
- 1982-10-12 DE DE8282420144T patent/DE3262161D1/de not_active Expired
- 1982-10-13 AU AU89318/82A patent/AU550685B2/en not_active Ceased
- 1982-10-13 DK DK453082A patent/DK158324C/da not_active IP Right Cessation
- 1982-10-13 ZA ZA827492A patent/ZA827492B/xx unknown
- 1982-10-13 ES ES516442A patent/ES516442A0/es active Granted
- 1982-10-13 NO NO823419A patent/NO160529C/no unknown
- 1982-10-13 BR BR8205976A patent/BR8205976A/pt not_active IP Right Cessation
- 1982-10-13 IE IE2477/82A patent/IE53901B1/en unknown
- 1982-10-13 HU HU823254A patent/HU191190B/hu not_active IP Right Cessation
- 1982-10-14 KR KR8204616A patent/KR890001787B1/ko not_active IP Right Cessation
-
1984
- 1984-10-15 JP JP59216028A patent/JPS60121042A/ja active Pending
-
1986
- 1986-04-17 HK HK277/86A patent/HK27786A/xx unknown
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