WO2017094741A1 - 金属薄帯の製造装置及びそれを用いた金属薄帯の製造方法 - Google Patents
金属薄帯の製造装置及びそれを用いた金属薄帯の製造方法 Download PDFInfo
- Publication number
- WO2017094741A1 WO2017094741A1 PCT/JP2016/085458 JP2016085458W WO2017094741A1 WO 2017094741 A1 WO2017094741 A1 WO 2017094741A1 JP 2016085458 W JP2016085458 W JP 2016085458W WO 2017094741 A1 WO2017094741 A1 WO 2017094741A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- molten metal
- cooling roll
- outer peripheral
- peripheral surface
- metal
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0611—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires
- B22D11/0614—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a single casting wheel, e.g. for casting amorphous metal strips or wires the casting wheel being immersed in a molten metal bath, and drawing out upwardly the casting strip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0634—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a casting wheel and a co-operating shoe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/112—Treating the molten metal by accelerated cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/048—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by pulverising a quenched ribbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0425—Copper-based alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/18—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on silicides
Definitions
- the present invention relates to a metal ribbon manufacturing apparatus and a metal ribbon manufacturing method using the same.
- the rapid solidification method refers to a method of solidifying molten metal at a cooling rate of a certain level or higher.
- the rapid solidification method makes it possible, for example, to refine the crystal structure of the metal material, homogenize the solute distribution, expand the solid solution limit, and generate an amorphous layer (amorphous).
- a strip casting method, a melt spinning method, an atomizing method, a melt spinning method, and the like are known as a method for producing a slab by a rapid solidification method.
- Patent Document 1 International Publication No. 2012/0999056
- Patent Document 2 Japanese Patent Laid-Open No. 2013-161785
- Patent Document 3 describes the production of a Si alloy by a melt spinning method.
- a manufacturing method having a particularly fast cooling rate is, for example, a melt spinning method.
- the melt spinning method is a method in which molten metal is jetted onto a roll that rotates at a high speed and rapidly cooled to produce a ribbon-like metal ribbon.
- a small amount of molten metal is jetted and supplied onto a roll. Therefore, the cooling rate is fast.
- a metal ribbon containing fine crystal grains can be produced by the melt spinning method.
- the melt spinning method has a small amount of molten metal supplied onto the roll. Therefore, production capacity is limited, and mass production of metal ribbon is difficult.
- a method capable of mass production of a metal ribbon is, for example, a single roll strip casting method.
- the single roll strip casting method is a method in which molten metal is continuously supplied onto a rotating roll and rapidly cooled to produce a metal ribbon.
- a method for manufacturing a slab using the strip casting method is described in, for example, Japanese Patent Application Laid-Open No. 2011-206835 (Patent Document 3) and Japanese Patent Application Laid-Open No. 2001-291514 (Patent Document 4).
- the manufacturing apparatus described in JP2011-206835A is an apparatus for manufacturing an aluminum clad plate.
- This manufacturing apparatus includes a first roll having cooling ability and a first pool for storing the first molten metal.
- the first pool is surrounded by the surface of the first roll, the first front plate, the rear member, and both side members.
- the first front plate is positioned in front of the first roll in the rotation direction.
- the rear member is located rearward in the rotation direction of the first roll.
- the first front plate has a tip portion and is movably provided so that the distance between the tip portion and the surface of the first roll can be changed.
- the first roll rotates with the first metal layer while cooling the first molten metal in the first pool to form a semi-solid or solidified first metal layer on the surface of the first roll.
- the first front plate is urged so that the tip portion of the first front plate is always in surface contact with a semi-solid state surface of the first metal layer moving with the rotation of the first roll with a constant force. ing.
- Patent Document 4 The manufacturing method described in JP-A-2001-291514 (Patent Document 4) is a method for manufacturing a negative electrode material for a non-aqueous electrolyte secondary battery.
- an alloy raw material having a composition selected so that, when solidified, a Si phase and a phase of an intermetallic compound of Si and other metal elements crystallize is melted, followed by a strip casting method or a centrifugal casting. It is characterized by solidifying using a method to form a columnar crystal structure.
- the strip casting method In the strip casting method, the amount of molten metal supplied onto the roll is larger than that in the melt spinning method. Therefore, mass production of metal ribbons is possible by the strip casting method.
- the strip casting method has a slower cooling rate of the molten metal than the melt spinning method. Therefore, the crystal grains are difficult to be miniaturized. Therefore, further refinement of crystal grains is required in the strip casting method.
- An object of the present invention is to provide a metal ribbon production apparatus that can efficiently produce a metal ribbon containing fine crystal grains.
- the manufacturing apparatus is an apparatus for manufacturing a metal ribbon by a single roll strip casting method.
- the manufacturing apparatus includes a cooling roll, a tundish, and a molten metal remover.
- the cooling roll has an outer peripheral surface, and cools and solidifies the molten metal on the outer peripheral surface while rotating.
- the tundish can store the molten metal and supplies the molten metal onto the outer peripheral surface of the cooling roll.
- the molten metal remover is disposed downstream of the tundish in the rotation direction of the cooling roll with a gap between it and the outer peripheral surface of the cooling roll.
- the molten metal remover removes a portion of the molten metal corresponding to a thickness exceeding the width of the gap on the outer peripheral surface of the cooling roll. Thereby, the thickness of the molten metal on the outer peripheral surface of the cooling roll is regulated to the width of the gap between the outer peripheral surface of the cooling roll and the molten metal remover.
- the method for producing a metal ribbon according to the present embodiment is a method for producing a metal ribbon by a single-roll strip casting method using the above-described production apparatus.
- the manufacturing method includes a supplying process, a rapid cooling process, and a thickness adjusting process.
- the supplying step the molten metal in the tundish is supplied onto the outer peripheral surface of the cooling roll.
- the rapid cooling step the molten metal on the outer peripheral surface is rapidly cooled by a cooling roll to form a metal ribbon.
- the molten metal remover removes a portion corresponding to the thickness exceeding the width of the above-described gap of the molten metal on the outer peripheral surface. Thereby, the thickness of the molten metal on the outer peripheral surface is regulated to the width of the gap between the outer peripheral surface of the cooling roll and the molten metal remover.
- a metal ribbon containing fine crystal grains can be efficiently produced.
- FIG. 1 is a cross-sectional view of a metal ribbon manufacturing apparatus according to the present embodiment.
- FIG. 2 is an enlarged cross-sectional view of the vicinity of the tip of the molten metal remover of the manufacturing apparatus.
- FIG. 3 is a view showing the mounting angle of the molten metal remover.
- FIG. 4 is a cross-sectional view of a manufacturing apparatus according to another embodiment different from those shown in FIGS.
- FIG. 5 is a cross-sectional view of a manufacturing apparatus according to another embodiment different from those shown in FIGS.
- FIG. 6 is a view showing a cross-sectional shape of a molten metal remover.
- FIG. 7 is a diagram showing a cross-sectional shape of another molten metal remover different from FIG.
- FIG. 1 is a cross-sectional view of a metal ribbon manufacturing apparatus according to the present embodiment.
- FIG. 2 is an enlarged cross-sectional view of the vicinity of the tip of the molten metal remover of the manufacturing apparatus.
- FIG. 8 is a diagram showing a cross-sectional shape of another molten metal remover different from those in FIGS. 6 and 7.
- FIG. 9 is an electron microscope (SEM) photograph of a cross section of a metal ribbon manufactured by the manufacturing method according to the present embodiment.
- FIG. 10 is an electron microscope (SEM) photograph of a cross section of a metal ribbon produced without using a molten metal remover.
- the manufacturing apparatus is an apparatus for manufacturing a metal ribbon by a single roll strip casting method.
- the manufacturing apparatus includes a cooling roll, a tundish, and a molten metal remover.
- the cooling roll has an outer peripheral surface, and cools and solidifies the molten metal on the outer peripheral surface while rotating.
- the tundish can store the molten metal and supplies the molten metal onto the outer peripheral surface of the cooling roll.
- the molten metal remover is disposed downstream of the tundish in the rotation direction of the cooling roll with a gap between it and the outer peripheral surface of the cooling roll.
- the molten metal remover removes a portion (hereinafter also referred to as a surface portion) corresponding to a thickness exceeding the width of the above-mentioned gap of the molten metal.
- the thickness of the molten metal on the outer peripheral surface of the cooling roll is regulated to the width of the gap between the outer peripheral surface of the cooling roll and the molten metal remover.
- the manufacturing apparatus includes a molten metal remover.
- the molten metal remover contacts the molten metal when the free surface of the molten metal (the surface on the side where the molten metal is not in contact with the cooling roll) is in a liquid or semi-solid state.
- the molten metal remover removes the surface portion of the molten metal on the outer peripheral surface.
- the thickness of the molten metal on the outer peripheral surface of the cooling roll is regulated to the width of the gap between the outer peripheral surface of the cooling roll and the molten metal remover. Therefore, the molten metal on the outer peripheral surface of the cooling roll becomes thin.
- the cooling rate of the molten metal increases.
- the metal ribbon crystal grains are reduced. That is, a metal ribbon containing fine crystal grains can be efficiently produced using strip casting.
- the width of the gap between the outer peripheral surface of the cooling roll and the molten metal remover is narrower than the thickness of the molten metal on the outer peripheral surface of the cooling roll upstream of the molten metal remover in the rotation direction of the cooling roll.
- the molten metal on the outer peripheral surface of the cooling roll becomes thinner. Therefore, the cooling rate of the molten metal is further increased. As a result, the crystal grains of the metal ribbon are further refined.
- the tundish is disposed in the vicinity of the outer peripheral surface of the cooling roll and includes a supply end that guides the molten metal onto the outer peripheral surface of the cooling roll.
- the molten metal remover is further disposed above the supply end of the tundish.
- the molten metal is cooled while being wound up on the cooling roll. Therefore, the time for which the molten metal is in contact with the outer peripheral surface of the cooling roll is long, and the cooling time for the molten metal is long. As a result, the crystal grains of the metal ribbon are further refined.
- the molten metal remover is disposed to face the outer peripheral surface of the cooling roll, and has a heat removal surface that comes into contact with the molten metal that passes through the gap between the outer peripheral surface of the cooling roll and the molten metal remover.
- the molten metal is extracted from not only the surface in contact with the cooling roll (hereinafter also referred to as the solidified portion) but also the surface in contact with the molten metal remover. Therefore, the cooling rate of molten metal increases. As a result, the crystal grains of the metal ribbon are further refined.
- the method for producing a metal ribbon according to the present embodiment is a method for producing a metal ribbon by a single-roll strip casting method using the above-described production apparatus.
- the manufacturing method includes a supplying process, a rapid cooling process, and a thickness adjusting process.
- the supplying step the molten metal in the tundish is supplied onto the outer peripheral surface of the cooling roll.
- the rapid cooling step the molten metal on the outer peripheral surface is rapidly cooled by a cooling roll to form a metal ribbon.
- the molten metal remover removes the surface portion of the molten metal on the outer peripheral surface. Thereby, the thickness of the molten metal on the outer peripheral surface is regulated to the width of the gap between the outer peripheral surface of the cooling roll and the molten metal remover.
- the manufacturing method according to the present embodiment includes a thickness adjustment step. Thereby, the molten metal on the outer peripheral surface of the cooling roll becomes thin. Therefore, the cooling rate of molten metal increases. As a result, the crystal grains of the metal ribbon are refined. That is, it is possible to efficiently manufacture a metal ribbon containing fine crystal grains by using a strip casting method.
- FIG. 1 is a cross-sectional view of an example of a metal ribbon manufacturing apparatus according to the present embodiment.
- the manufacturing apparatus 1 includes a cooling roll 2, a tundish 4, and a molten metal remover 5.
- the cooling roll 2 has an outer peripheral surface, and cools and solidifies the molten metal 3 on the outer peripheral surface while rotating.
- the cooling roll 2 includes a cylindrical body portion and a shaft portion (not shown).
- drum has the said outer peripheral surface.
- the shaft portion is disposed at the central axis position of the body portion and is attached to a drive source (not shown).
- the cooling roll 2 rotates around the central axis 9 of the cooling roll 2 by a driving source.
- the material of the cooling roll 2 is a material having high hardness and thermal conductivity.
- the material of the cooling roll 2 is, for example, one type selected from the group consisting of copper and copper alloys.
- the material of the cooling roll 2 is copper.
- the cooling roll 2 may further have a coating on the surface. Thereby, the hardness of the cooling roll 2 increases.
- the coating is, for example, one or two selected from the group consisting of a plating coating and a cermet coating.
- the plating film is, for example, one or two selected from the group consisting of chromium plating and nickel plating.
- Cermet coatings include, for example, tungsten (W), cobalt (Co), titanium (Ti), chromium (Cr), nickel (Ni), silicon (Si), aluminum (Al), boron (B), and these elements 1 type (s) or 2 or more types selected from the group consisting of carbides, nitrides and carbonitrides.
- the surface layer of the cooling roll 2 is copper, and the cooling roll 2 further has a chromium plating film on the surface.
- the cooling roll 2 rotates in a certain direction X. Thereby, in FIG. 1, the molten metal 3 in contact with the cooling roll 2 partially solidifies on the outer peripheral surface of the cooling roll 2, and moves with the rotation of the cooling roll 2.
- the cooling roll 2 has a cooling zone downstream of the later-described tundish 4 in the rotation direction of the cooling roll 2 and before reaching the later-described molten metal remover 5.
- the molten metal 3 supplied on the outer peripheral surface of the cooling roll 2 has a free surface. Therefore, rapid cooling is possible.
- the molten metal 3 does not have a free surface, that is, when the molten metal 3 is further present on the solidified portion of the molten metal 3, the solidified portion cannot be sufficiently removed. This is because heat is continuously applied to the solidified portion from the molten metal 3 existing on the solidified portion.
- the molten metal 3 has a free surface by being supplied onto the outer peripheral surface of the cooling roll 2. Therefore, the solidified part can be sufficiently removed and rapid cooling becomes possible. As a result, the metal ribbon 6 having finer crystal grains can be obtained.
- the roll peripheral speed of the cooling roll 2 is appropriately set in consideration of the cooling speed and manufacturing efficiency of the molten metal 3. If the roll peripheral speed is fast, the metal ribbon 6 is easily peeled from the outer peripheral surface of the cooling roll 2. Therefore, the lower limit of the roll peripheral speed is preferably 50 m / min, more preferably 80 m / min, and still more preferably 120 m / min.
- the upper limit of the roll peripheral speed is not particularly limited, but is, for example, 500 m / min in consideration of the facility capacity.
- the roll peripheral speed can be obtained from the roll diameter and the rotation speed.
- the inside of the cooling roll 2 may be filled with a heat removal solvent. Thereby, the molten metal 3 can be efficiently removed.
- a solvent is 1 type, or 2 or more types selected from the group which consists of water, an organic solvent, and oil, for example.
- the solvent may stay inside the cooling roll 2 or may be circulated to the outside.
- the tundish 4 can store the molten metal 3 and supplies the molten metal 3 on the outer peripheral surface of the cooling roll 2.
- the tundish 4 may be always heated. In this case, the molten state of the high melting point molten metal 3 can be maintained. Therefore, the molten metal 3 can be removed using the molten metal remover 5 described later in the molten state.
- the heating temperature is not particularly limited as long as it is equal to or higher than the liquidus temperature of the raw material. When manufacturing a Si alloy, heating temperature is 1200 degreeC or more, for example, and a more preferable heating temperature is 1500 degreeC or more. When manufacturing the alloy material for magnets, heating temperature is 1000 degreeC or more, for example.
- the molten metal remover 5 is a member that extends along the axial direction of the cooling roll 2.
- An example of the molten metal remover 5 is a plate-like member arranged in parallel with the axial direction of the cooling roll 2 as shown in FIG.
- the molten metal remover 5 is disposed downstream of the tundish 4 in the rotation direction of the cooling roll 2 with a gap between the outer periphery of the cooling roll 2.
- the molten metal remover 5 includes a main body portion 51 and a tip portion 50 disposed to face the outer peripheral surface of the cooling roll 2.
- the shape of the tip 50 is not particularly limited.
- FIG. 2 is an enlarged cross-sectional view of the vicinity of the tip 50 of the molten metal remover 5 of the manufacturing apparatus 1 (the range surrounded by the broken line in FIG. 1).
- molten metal remover 5 is arranged with a gap A between the outer peripheral surface of cooling roll 2.
- the molten metal remover 5 regulates the thickness of the molten metal 3 on the outer peripheral surface of the cooling roll 2 to the width of the gap A between the outer peripheral surface of the cooling roll 2 and the molten metal remover 5.
- the molten metal 3 upstream of the molten metal remover 5 in the rotation direction of the cooling roll 2 may be thicker than the width of the gap A.
- the molten metal 3 corresponding to the thickness exceeding the width of the gap A is removed by the molten metal remover 5.
- the thickness of the molten metal 3 is reduced to the width of the gap A.
- the cooling rate of the molten metal 3 is increased. For this reason, the crystal grains of the metal ribbon 6 are refined.
- the width of the gap A is preferably narrower than the thickness B of the molten metal 3 on the outer peripheral surface on the upstream side in the rotation direction of the cooling roll 2 relative to the molten metal remover 5.
- the molten metal 3 on the outer peripheral surface of the cooling roll 2 becomes thinner. Therefore, the cooling rate of the molten metal 3 is further increased. As a result, the crystal grains of the metal ribbon 6 are further refined.
- the width of the gap A between the outer peripheral surface of the cooling roll 2 and the molten metal remover 5 is the shortest distance between the molten metal remover 5 and the outer peripheral surface of the cooling roll 2.
- the width of the gap A is appropriately set according to the intended cooling rate and production efficiency. The narrower the gap A, the thinner the molten metal 3 after thickness adjustment. For this reason, the cooling rate of the molten metal 3 is further increased. As a result, the crystal grains of the metal ribbon 6 can be easily refined. Therefore, the upper limit of the gap A is preferably 400 ⁇ m, more preferably 250 ⁇ m, still more preferably 100 ⁇ m, still more preferably 50 ⁇ m, and further preferably 30 ⁇ m.
- the cooling rate is slower than when the surface of the cooling roll 2 is copper. Therefore, in this case, it is preferable to narrow the gap A.
- the minimum of the clearance gap A is not specifically limited, For example, it is 10 micrometers.
- the distance between the point where the molten metal 3 is supplied from the tundish 4 and the point where the molten metal remover 5 is disposed on the outer peripheral surface of the cooling roll 2 is appropriately set. If the molten metal remover 5 is disposed within a range where the free surface of the molten metal 3 (the surface on the side where the molten metal 3 is not in contact with the cooling roll 2) is in contact with the molten metal remover 5 in a liquid or semi-solid state. Good.
- FIG. 3 is a view showing the mounting angle of the molten metal remover 5.
- molten metal remover 5 includes surface PL ⁇ b> 1 including central axis 9 and supply end 7 of cooling roll 2, central axis 9 of cooling roll 2 and tip 50 of molten metal remover 5. Is arranged such that the angle ⁇ formed by the surface PL2 including the surface is constant. (Hereinafter, this angle ⁇ is referred to as an attachment angle ⁇ .)
- the attachment angle ⁇ can be set as appropriate.
- the upper limit of the mounting angle ⁇ is 45 °, for example.
- the upper limit of the mounting angle ⁇ is preferably 30 °.
- the lower limit of the attachment angle ⁇ is not particularly limited, but is preferably in a range where the molten metal remover 5 is not in direct contact with the molten metal 3 on the tundish 4.
- the molten metal remover 5 preferably has a heat removal surface 8.
- the heat removal surface 8 is disposed to face the outer peripheral surface of the cooling roll 2.
- the heat removal surface 8 is in contact with the molten metal 3 that passes through the gap between the outer peripheral surface of the cooling roll 2 and the molten metal remover 5.
- the material of the molten metal remover 5 is preferably a refractory material.
- the molten metal remover 5 is, for example, aluminum oxide (Al 2 O 3 ), silicon monoxide (SiO), silicon dioxide (SiO 2 ), chromium oxide (Cr 2 O 3 ), magnesium oxide (MgO), titanium oxide (TiO 2 ). ), Aluminum titanate (Al 2 TiO 5 ), and zirconium oxide (ZrO 2 ).
- the molten metal remover 5 is one selected from the group consisting of aluminum oxide (Al 2 O 3 ), silicon dioxide (SiO 2 ), aluminum titanate (Al 2 TiO 5 ), and magnesium oxide (MgO). Contains 2 or more.
- the manufacturing apparatus 1 described above removes the surface portion of the molten metal 3 on the outer peripheral surface of the cooling roll 2 by the molten metal remover 5.
- the surface portion of the molten metal 3 is a portion corresponding to a thickness exceeding the width of the gap A between the outer peripheral surface of the cooling roll 2 and the molten metal remover 5 in the molten metal 3 on the outer peripheral surface of the cooling roll 2. means. Thereby, the thickness of the molten metal 3 on the outer peripheral surface of the cooling roll 2 is regulated. Therefore, the molten metal 3 on the outer peripheral surface of the cooling roll 2 becomes thin. As the molten metal 3 becomes thinner, the cooling rate of the molten metal 3 increases. Therefore, if a metal ribbon is manufactured using the manufacturing apparatus 1, the metal ribbon 6 having finer crystal grains can be obtained.
- the metal ribbon manufacturing apparatus of the present embodiment is not limited to the manufacturing apparatus 1 described above.
- the molten metal 3 is supplied from the side of the cooling roll 2.
- the molten metal 3 can also be supplied from above the cooling roll 2.
- FIG. 4 is a cross-sectional view of a manufacturing apparatus 10 according to another embodiment, which is different from FIGS. 1 to 3.
- the tundish 4 and the supply end 7 are disposed above the cooling roll 2.
- the molten metal remover 5 is disposed below the supply end 7.
- Other configurations of the manufacturing apparatus 10 are the same as those of the manufacturing apparatus 1.
- the molten metal 3 is supplied from above the cooling roll 2 onto the outer peripheral surface of the cooling roll 2.
- the molten metal 3 supplied onto the outer peripheral surface of the cooling roll 2 is regulated by the molten metal remover 5 in the same manner as the manufacturing apparatus 1.
- the thickness of the molten metal 3 on the outer peripheral surface of the cooling roll 2 is reduced to the width of the gap A between the outer peripheral surface of the cooling roll 2 and the molten metal remover 5.
- the molten metal 3 is cooled from the top of the cooling roll 2 down on the outer peripheral surface of the cooling roll 2.
- the molten metal 3 is supplied from the side of the cooling roll 2 in the same direction as the rotation direction of the cooling roll 2. Further, the molten metal 3 reaches the apex of the cooling roll 2 while being wound up by the cooling roll 2, and is then cooled down on the outer peripheral surface of the cooling roll 2. Therefore, compared with the manufacturing apparatus 10, when the manufacturing apparatus 1 is used, the time during which the molten metal 3 is in contact with the outer peripheral surface of the cooling roll 2 is long. Therefore, the cooling time of the molten metal 3 is long. In this case, the crystal grains of the metal ribbon 6 are further refined. Therefore, it is preferable that the manufacturing apparatus 1 shown in FIG. 1, that is, the molten metal remover 5 is disposed above the supply end 7 of the tundish 4.
- one molten metal remover 5 may be arranged, or a plurality of molten metal removers 5 may be arranged continuously in the rotation direction of the cooling roll 2.
- the molten metal remover 5 arranged on the downstream side in the rotation direction of the cooling roll 2 is connected to the cooling roll 2 rather than the molten metal remover 5 arranged on the upstream side in the rotation direction of the cooling roll 2. Place them close together. And it arrange
- the molten metal 3 can be removed stepwise. In this case, the burden on one molten metal remover 5 is reduced. In this case, precise control of the thickness of the molten metal 3 is further facilitated.
- the molten metal remover 5 may be arranged in the direction along the normal line of the cooling roll 2 as shown in FIGS. 1 to 4, or different from the normal line of the cooling roll 2 as shown in FIG. You may arrange
- the molten metal remover 5 is disposed so as to be inclined toward the rotation direction of the cooling roll 2 rather than the normal direction of the cooling roll 2. In this case, it is easy to remove a portion above the width of the gap A from the molten metal 3 on the outer peripheral surface of the cooling roll 2. That is, it is easy to regulate the thickness of the molten metal 3 on the outer peripheral surface of the cooling roll 2. Further, in FIG. 5, the cross-sectional shape of the molten metal remover 5 is made different from that shown in FIGS. In this case, the molten metal 3 can be removed more efficiently.
- the direction of the molten metal remover 5 is appropriately set so that the thickness of the molten metal 3 can be easily regulated.
- the cross-sectional shape of the cross section perpendicular to the roll axis of the tip 50 (the end in contact with the molten metal 3) of the molten metal remover 5 may be a rectangle as shown in FIGS. But you can. The other shape may be, for example, a triangle as shown in FIG. Alternatively, as shown in FIGS. 5 and 7, the width of the gap between the tip 50 on the inlet side of the molten metal 3 of the molten metal remover 5 and the outer peripheral surface of the cooling roll 2, and the molten metal of the molten metal remover 5. 3 may have a shape in which the width of the gap between the distal end portion 50 on the outlet side 3 and the outer peripheral surface of the cooling roll 2 is different. The cross-sectional shape of the distal end portion 50 of the molten metal remover 5 is appropriately set so that the thickness of the molten metal 3 can be easily regulated.
- the manufacturing method of the metal ribbon 6 according to this embodiment is a manufacturing method using the manufacturing apparatus 1 or 10 described above.
- the manufacturing method includes a supplying process, a rapid cooling process, and a thickness adjusting process.
- the molten metal 3 is prepared.
- the composition of the molten metal 3 is appropriately set according to the composition of the target metal ribbon 6.
- the molten metal 3 is, for example, silicon (Si), titanium (Ti), chromium (Cr), vanadium (V), manganese (Mn), iron (Fe), cobalt (Co).
- the molten metal 3 is, for example, silicon (Si), titanium (Ti), chromium (Cr), vanadium (V), manganese (Mn), iron (Fe), cobalt (Co).
- nickel (Ni), zinc (Zn), aluminum (Al), copper (Cu), and tin (Sn) are contained, and the balance consists of impurities.
- the molten metal 3 contains neodymium (Nd), boron (B), and iron (Fe), for example, and the remainder consists of impurities.
- the molten metal 3 is manufactured by heating the raw material which has the above-mentioned chemical composition more than melting
- the raw material having the above chemical composition is put in a crucible and heated to produce the molten metal 3.
- the heating method include high frequency induction heating, arc heating, plasma arc heating, resistance heating, and electron beam impact heating.
- the heating temperature is not particularly limited as long as it is equal to or higher than the liquidus temperature of the raw material.
- the heating temperature is, for example, 1200 ° C. or higher, and more preferably 1500 ° C. or higher.
- heating temperature is 1000 degreeC or more, for example.
- the molten metal 3 in the tundish 4 is supplied onto the outer peripheral surface of the cooling roll 2.
- the molten metal 3 is supplied from the crucible to the tundish 4.
- the molten metal 3 may be supplied from the crucible to the tundish 4 by directly pouring the molten metal 3 by tilting the crucible.
- the molten metal 3 may be supplied from the crucible to the tundish 4 using a nozzle or the like.
- the molten metal 3 is supplied onto the outer peripheral surface of the cooling roll 2 from the supply end 7 of the tundish 4.
- the cooling roll 2 rotates around the central axis 9 of the cooling roll 2 at a constant speed as described above.
- the molten metal 3 supplied from the tundish 4 comes into contact with the outer peripheral surface of the cooling roll 2, the molten metal 3 partially solidifies and is transferred to the cooling roll 2.
- the molten metal 3 moves with the rotation of the cooling roll 2.
- the surface (free surface) of the molten metal 3 that is not in contact with the outer peripheral surface of the cooling roll 2 is in a liquid or semi-solid state.
- the tundish 4 may be always heated. In this case, the molten state of the high melting point molten metal 3 can be maintained. Therefore, the molten metal 3 can be removed using the molten metal remover 5 in the molten state.
- the heating temperature is not particularly limited as long as it is equal to or higher than the liquidus temperature of the raw material. When manufacturing a Si alloy, heating temperature is 1200 degreeC or more, for example, and a more preferable heating temperature is 1500 degreeC or more. When manufacturing the alloy material for magnets, heating temperature is 1000 degreeC or more, for example.
- Rapid cooling process In the rapid cooling step, the molten metal 3 on the outer peripheral surface is rapidly cooled by the cooling roll 2 to form the metal ribbon 6.
- the rapid cooling process starts when the molten metal 3 is supplied onto the outer peripheral surface of the cooling roll 2 in the supply process described above.
- the rapid cooling step the molten metal 3 is cooled from the solidified portion.
- the cooling roll 2 has a cooling zone downstream of the tundish 4 in the rotation direction of the cooling roll 2 and before reaching the molten metal remover 5.
- the molten metal 3 supplied on the outer peripheral surface of the cooling roll 2 has a free surface. Therefore, rapid cooling is possible.
- the molten metal 3 does not have a free surface, that is, when the molten metal 3 is further present on the solidified part, the solidified part cannot be sufficiently removed. This is because heat is continuously applied to the solidified portion from the molten metal 3 existing on the solidified portion.
- the molten metal 3 has a free surface by being supplied onto the outer peripheral surface of the cooling roll 2. Therefore, the solidified part can be sufficiently removed and rapid cooling becomes possible. As a result, it is possible to manufacture the metal ribbon 6 having finer crystal grains.
- the thickness adjusting step the thickness of the molten metal 3 on the outer peripheral surface of the cooling roll 2 is changed between the outer peripheral surface of the cooling roll 2 and the molten metal remover 5 by the molten metal remover 5 during the rapid cooling step. Restrict to A width.
- the molten metal 3 does not solidify as a whole immediately after being supplied onto the outer peripheral surface of the cooling roll 2 but gradually solidifies from the solidified portion.
- the free surface of the molten metal 3 contacts the molten metal remover 5 in a liquid or semi-solid state. The hardness of the liquid or semi-solid molten metal 3 is low.
- the thickness of the molten metal 3 is greater than the width of the gap A, the free surface of the molten metal 3 in a liquid or semi-solid state is blocked or removed. Thereby, the molten metal 3 becomes thin. If the molten metal 3 is thin, the cooling rate of the molten metal 3 is increased. As a result, it is possible to manufacture the metal ribbon 6 having finer crystal grains.
- the molten metal 3 is also removed from the heat removal surface 8 in addition to the solidified portion.
- the cooling rate of the molten metal 3 is increased.
- the area and shape of the heat removal surface 8 are appropriately set. For example, as shown in FIG. 8, the area of the heat removal surface 8 can be increased by making the tip 50 of the molten metal remover 5 L-shaped. In this case, the cooling rate of the molten metal 3 can be further increased.
- the molten metal 3 thinned in the thickness adjusting step is continuously cooled on the cooling roll 2.
- the molten metal 3 at this time is thin. Therefore, the cooling rate is remarkably fast. As a result, the crystal grains of the metal ribbon 6 become fine.
- the entire molten metal 3 is solidified, it becomes a metal ribbon 6.
- the metal ribbon 6 is collected away from the outer peripheral surface of the cooling roll 2.
- a Si alloy metal ribbon was manufactured.
- the raw material contained nickel (Ni), titanium (Ti) and silicon (Si).
- 1 kg of the mixed raw material was heated to 1450 ° C. to produce molten metal.
- Molten metal was fed from the tundish onto a chill roll.
- the cooling roll was a cooling roll in which the outer peripheral surface was coated with copper and the inside was cooled with water.
- the diameter of the cooling roll was 20 cm and the width was 18 cm.
- the peripheral speed of the roll was 120 m / min.
- the metal ribbons of the Si alloys obtained in Examples 1 to 3 were cut, and the cross section was observed using a scanning electron microscope (SEM).
- Example 1 an Si alloy metal ribbon was manufactured using the manufacturing apparatus of the present embodiment. That is, a metal ribbon of Si alloy was manufactured using a molten metal remover.
- the molten metal remover was a flat alumina plate having a thickness of 3 mm.
- the width of the gap between the molten metal remover and the outer peripheral surface of the cooling roll was 80 ⁇ m.
- Example 2 the molten metal remover was removed from the production apparatus of the present embodiment to produce a Si alloy metal ribbon. That is, a Si alloy metal ribbon was manufactured without using a molten metal remover.
- Example 3 In Example 3, a metal ribbon of Si alloy is manufactured on the cooling roll using a manufacturing apparatus that does not have a cooling zone between the tundish and the molten metal remover under the same conditions as in Example 1. did. That is, the molten metal was supplied to the molten metal remover without having a free surface.
- FIG. 9 is an electron microscope (SEM) photograph of a cross section of a metal ribbon manufactured by the manufacturing method according to the present embodiment (with a molten metal remover).
- the average thickness of the metal ribbon manufactured by the method according to the present embodiment was 80 ⁇ m.
- the size of the Si phase crystal grains of the metal ribbon produced by the method according to the present embodiment was 2 ⁇ m or less.
- FIG. 10 is an electron microscope (SEM) photograph of a cross section of a metal ribbon manufactured by a conventional method (without a molten metal remover).
- the average film thickness of the metal ribbon manufactured by the conventional method was 440 ⁇ m.
- the size of the crystal grains of the Si phase of the metal ribbon manufactured by the conventional method was 20 to 30 ⁇ m.
- Example 3 In Example 3 produced by removing the molten metal having no free surface with a molten metal remover, the size of the Si phase crystal grains of the metal ribbon was 10 to 15 ⁇ m.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Continuous Casting (AREA)
Abstract
Description
図1は、本実施形態による金属薄帯の製造装置の一例の断面図である。製造装置1は、冷却ロール2と、タンディッシュ4と、溶融金属リムーバー5とを備える。
冷却ロール2は、外周面を有し、回転しながら外周面上の溶融金属3を冷却して凝固させる。冷却ロール2は円柱状の胴部と、図示しない軸部とを備える。胴部は上記外周面を有する。軸部は胴部の中心軸位置に配置され、図示しない駆動源に取り付けられている。冷却ロール2は、駆動源により冷却ロール2の中心軸9周りに回転する。
タンディッシュ4は、溶融金属3を収納可能であり、冷却ロール2の外周面上に溶融金属3を供給する。
溶融金属リムーバー5は、冷却ロール2の軸方向に沿って延びる部材である。溶融金属リムーバー5の一例は、図1に示すような、冷却ロール2の軸方向と平行に配置される板状の部材である。溶融金属リムーバー5は、タンディッシュ4よりも冷却ロール2の回転方向下流に、冷却ロール2の外周面との間に隙間を設けて配置される。溶融金属リムーバー5は、本体部51と、冷却ロール2の外周面と対向して配置される先端部50とからなる。先端部50の形状は特に限定されない。
本実施形態による金属薄帯6の製造方法は、上述の製造装置1又は10を用いた製造方法である。製造方法は、供給工程と、急冷工程と、厚さ調整工程とを備える。
供給工程では、タンディッシュ4内の溶融金属3を冷却ロール2の外周面上に供給する。はじめに、坩堝からタンディッシュ4へ溶融金属3を供給する。坩堝からタンディッシュ4への溶融金属3の供給は、坩堝を傾けて溶融金属3を直接注いでもよい。若しくは、ノズル等を使用して坩堝からタンディッシュ4へ溶融金属3を供給してもよい。続いて、タンディッシュ4の供給端7から溶融金属3を冷却ロール2外周面上に供給する。冷却ロール2は、上述のとおり一定の速度で冷却ロール2の中心軸9周りに回転している。タンディッシュ4から供給された溶融金属3と冷却ロール2の外周面とが接触すれば、溶融金属3が一部凝固して冷却ロール2に移着する。溶融金属3は、冷却ロール2の回転に伴い移動する。このとき、溶融金属3の冷却ロール2の外周面と接触していない側の表面(自由表面)は液状又は半凝固状態である。
急冷工程では、外周面上の溶融金属3を冷却ロール2により急冷して金属薄帯6を形成する。上述の供給工程で溶融金属3が冷却ロール2の外周面上に供給された時から、急冷工程は開始する。急冷工程では、溶融金属3を凝固部から冷却する。
厚さ調整工程では、急冷工程の途中で、冷却ロール2の外周面上の溶融金属3の厚さを、溶融金属リムーバー5により、冷却ロール2の外周面と溶融金属リムーバー5との間の隙間Aの幅に規制する。溶融金属3は、冷却ロール2の外周面上に供給された後すぐには全体が凝固せず、凝固部から徐々に凝固する。溶融金属3の自由表面は、液状又は半凝固状で溶融金属リムーバー5と接触する。液状又は半凝固状の溶融金属3の硬度は低い。そのため、溶融金属3の厚さが、隙間Aの幅より厚ければ、液状又は半凝固状態である溶融金属3の自由表面が塞き止められる、若しくは、除去される。これにより、溶融金属3が薄くなる。溶融金属3が薄ければ、溶融金属3の冷却速度が速くなる。その結果、より微細化した結晶粒を有する金属薄帯6を製造できる。
実施例1では、本実施形態の製造装置を用いて、Si合金の金属薄帯を製造した。つまり、溶融金属リムーバーを使用してSi合金の金属薄帯を製造した。溶融金属リムーバーは、厚さ3mmの平板のアルミナ板であった。溶融金属リムーバーと冷却ロールの外周面との隙間の幅は80μmであった。
実施例2では、本実施形態の製造装置から、溶融金属リムーバーを外してSi合金の金属薄帯を製造した。つまり、溶融金属リムーバーを使用しないでSi合金の金属薄帯を製造した。
実施例3では、冷却ロール上において、タンディッシュから溶融金属リムーバーまでの間に冷却ゾーンを有さない製造装置を用いて、その他は実施例1と同じ条件で、Si合金の金属薄帯を製造した。つまり、溶融金属は自由表面を有さない状態で、溶融金属リムーバーに供給された。
[実施例1]
図9は、本実施形態による製造方法(溶融金属リムーバーあり)で製造した金属薄帯の断面の電子顕微鏡(SEM)写真である。本実施形態による方法で製造した金属薄帯の平均膜厚は80μmであった。さらに、本実施形態による方法で製造した金属薄帯のSi相の結晶粒の大きさ(図9の灰色の部分の幅に相当)は、2μm以下であった。
図10は、従来方法(溶融金属リムーバーなし)で製造した金属薄帯の断面の電子顕微鏡(SEM)写真である。従来方法で製造した金属薄帯の平均膜厚は440μmであった。さらに、従来方法で製造した金属薄帯のSi相の結晶粒の大きさ(図10の灰色の部分の幅に相当)は、20~30μmであった。
自由表面を有さない溶融金属を、溶融金属リムーバーで除去して製造した実施例3では、金属薄帯のSi相の結晶粒の大きさは、10~15μmであった。
2 冷却ロール
3 溶融金属
4 タンディッシュ
5 溶融金属リムーバー
6 金属薄帯
7 供給端
8 抜熱面
Claims (5)
- 単ロールのストリップキャスティング法による金属薄帯の製造装置であって、
外周面を有し、回転しながら前記外周面上の溶融金属を冷却して凝固させる冷却ロールと、
前記溶融金属を収納可能であり、前記外周面上に前記溶融金属を供給するタンディッシュと、
前記タンディッシュよりも前記冷却ロールの回転方向下流に、前記外周面との間に隙間を設けて配置され、前記外周面上の前記溶融金属の、前記隙間の幅を超える厚さに相当する部分を除去して、前記溶融金属の厚さを前記隙間の幅に規制する溶融金属リムーバーとを備える、金属薄帯の製造装置。 - 請求項1に記載の金属薄帯の製造装置であって、
前記隙間の幅は、前記溶融金属リムーバーよりも前記回転方向上流側での前記外周面上の前記溶融金属の厚さよりも狭い、金属薄帯の製造装置。 - 請求項1又は請求項2に記載の金属薄帯の製造装置であって、
前記タンディッシュは、前記外周面近傍に配置され、前記外周面上に前記溶融金属を導く供給端を含み、
前記溶融金属リムーバーは、前記供給端よりも上方に配置される、金属薄帯の製造装置。 - 請求項1~請求項3のいずれか1項に記載の金属薄帯の製造装置であって、
前記溶融金属リムーバーは、前記外周面と対向して配置され、前記隙間を通過する前記溶融金属と接触する抜熱面を有する、金属薄帯の製造装置。 - 請求項1~請求項4のいずれか1項に記載の金属薄帯の製造装置を用いた単ロールのストリップキャスティング法による金属薄帯の製造方法であって、
前記タンディッシュ内の前記溶融金属を前記冷却ロールの外周面上に供給する工程と、
前記外周面上の前記溶融金属を前記冷却ロールにより急冷して金属薄帯を形成する工程と、
前記溶融金属リムーバーにより前記外周面上の前記溶融金属の前記隙間の幅を超える厚さに相当する部分を除去して、前記外周面上の前記溶融金属の厚さを、前記隙間の幅に規制する工程とを備える、金属薄帯の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017554122A JP6593453B2 (ja) | 2015-11-30 | 2016-11-29 | 金属薄帯の製造装置及びそれを用いた金属薄帯の製造方法 |
KR1020187018138A KR102070271B1 (ko) | 2015-11-30 | 2016-11-29 | 금속 박대의 제조 장치 및 그것을 이용한 금속 박대의 제조 방법 |
CN201680069534.7A CN108290212A (zh) | 2015-11-30 | 2016-11-29 | 金属薄带的制造装置及使用其进行的金属薄带的制造方法 |
US15/779,741 US20190176224A1 (en) | 2015-11-30 | 2016-11-29 | Apparatus for producing thin metal strip and method for producing thin metal strip using the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-233354 | 2015-11-30 | ||
JP2015233354 | 2015-11-30 | ||
JP2016099864 | 2016-05-18 | ||
JP2016-099864 | 2016-05-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017094741A1 true WO2017094741A1 (ja) | 2017-06-08 |
Family
ID=58796930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/085458 WO2017094741A1 (ja) | 2015-11-30 | 2016-11-29 | 金属薄帯の製造装置及びそれを用いた金属薄帯の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190176224A1 (ja) |
JP (1) | JP6593453B2 (ja) |
KR (1) | KR102070271B1 (ja) |
CN (1) | CN108290212A (ja) |
WO (1) | WO2017094741A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS574360A (en) * | 1980-05-09 | 1982-01-09 | Battelle Development Corp | Casting device for strip |
JPH11320040A (ja) * | 1998-05-18 | 1999-11-24 | Seiko Epson Corp | 冷却ロールおよび磁石材料の製造方法 |
JP2001271145A (ja) * | 2000-03-24 | 2001-10-02 | Sumitomo Special Metals Co Ltd | 鉄基合金磁石およびその製造方法 |
JP2004154835A (ja) * | 2002-11-07 | 2004-06-03 | Sumitomo Metal Ind Ltd | 非晶質合金板、その製造方法および製造装置 |
JP2006307332A (ja) * | 2005-04-01 | 2006-11-09 | Neomax Co Ltd | 磁性合金材料およびその製造方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5938062B2 (ja) * | 1978-03-15 | 1984-09-13 | 日本碍子株式会社 | 金属の連続鋳造法 |
JPS54161564A (en) * | 1978-06-12 | 1979-12-21 | Nippon Telegr & Teleph Corp <Ntt> | Cooled rolling mill for manufacturing amorphous material |
JPS5653853A (en) * | 1979-10-05 | 1981-05-13 | Hitachi Ltd | Production of sheet and its apparatus |
US4484614A (en) * | 1980-05-09 | 1984-11-27 | Allegheny Ludlum Steel Corporation | Method of and apparatus for strip casting |
JPS5913551A (ja) * | 1982-07-15 | 1984-01-24 | Nippon Kokan Kk <Nkk> | 鋼板の連続鋳造装置 |
JPS60244450A (ja) * | 1984-05-14 | 1985-12-04 | オリン コーポレーシヨン | 回転鋳造ストリツプを圧延する装置 |
JPS60257950A (ja) * | 1984-06-02 | 1985-12-19 | Nippon Steel Corp | 板厚の大きなFe基非晶質合金薄帯の製造方法 |
JPS6138743A (ja) * | 1984-07-31 | 1986-02-24 | Nippon Kokan Kk <Nkk> | 薄肉金属帯の製造方法 |
JPS61253149A (ja) * | 1985-04-12 | 1986-11-11 | Nippon Kinzoku Kogyo Kk | 金属薄板の連続鋳造による製造装置 |
EP0353293B1 (en) * | 1988-02-05 | 1993-05-26 | Reynolds Metals Company | Apparatus for and process of direct casting of metal strip |
FR2633852B1 (fr) * | 1988-07-06 | 1991-04-26 | Siderurgie Fse Inst Rech | Procede et dispositif de coulee continue de produits metalliques minces |
US5063990A (en) * | 1990-06-22 | 1991-11-12 | Armco Inc. | Method and apparatus for improved melt flow during continuous strip casting |
GB9116242D0 (en) * | 1991-07-27 | 1991-09-11 | British Steel Plc | Method and apparatus for producing strip products by a spray forming technique |
JP3517605B2 (ja) * | 1999-04-30 | 2004-04-12 | 貢 本村 | アルミニウム鋳造スラグの急速冷却凝固製造方法とそれに使用される凝固ロール及び成形ロールとアルミニウム鋳造スラグの急速冷却凝固製造装置 |
JP2001291514A (ja) | 2000-04-06 | 2001-10-19 | Sumitomo Metal Ind Ltd | 非水電解質二次電池用負極材料とその製造方法 |
JP5408730B2 (ja) | 2010-03-30 | 2014-02-05 | 学校法人常翔学園 | 金属板製造装置及び金属板製造方法 |
JP5766445B2 (ja) | 2011-01-17 | 2015-08-19 | 山陽特殊製鋼株式会社 | リチウムイオン二次電池負極用Si合金粉末およびその製造方法 |
US20130202967A1 (en) | 2012-02-07 | 2013-08-08 | Jae-Hyuk Kim | Negative active material for rechargeable lithium battery and rechargeable lithium battery including same |
EP2889936B1 (en) * | 2012-08-27 | 2020-01-08 | Nippon Steel Corporation | Negative electrode active material |
JP6288644B2 (ja) * | 2014-03-31 | 2018-03-07 | 学校法人常翔学園 | 金属板製造装置及び金属板の製造方法 |
CN104493116B (zh) * | 2014-12-29 | 2017-05-24 | 江西大有科技有限公司 | 一种非晶合金条带的喷射制备装置及其制备方法 |
-
2016
- 2016-11-29 CN CN201680069534.7A patent/CN108290212A/zh active Pending
- 2016-11-29 KR KR1020187018138A patent/KR102070271B1/ko active IP Right Grant
- 2016-11-29 JP JP2017554122A patent/JP6593453B2/ja active Active
- 2016-11-29 US US15/779,741 patent/US20190176224A1/en not_active Abandoned
- 2016-11-29 WO PCT/JP2016/085458 patent/WO2017094741A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS574360A (en) * | 1980-05-09 | 1982-01-09 | Battelle Development Corp | Casting device for strip |
JPH11320040A (ja) * | 1998-05-18 | 1999-11-24 | Seiko Epson Corp | 冷却ロールおよび磁石材料の製造方法 |
JP2001271145A (ja) * | 2000-03-24 | 2001-10-02 | Sumitomo Special Metals Co Ltd | 鉄基合金磁石およびその製造方法 |
JP2004154835A (ja) * | 2002-11-07 | 2004-06-03 | Sumitomo Metal Ind Ltd | 非晶質合金板、その製造方法および製造装置 |
JP2006307332A (ja) * | 2005-04-01 | 2006-11-09 | Neomax Co Ltd | 磁性合金材料およびその製造方法 |
Non-Patent Citations (1)
Title |
---|
TOSHIO HAGA, MITSUGU MOTOMURA: "Casting of Aluminum Alloy Thin Strip by Nozzle Pressing Single Roll Rapid Solidification Method", TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS SERIES C, vol. 64, no. 628, December 1998 (1998-12-01), pages 4920 - 4926, XP055600002 * |
Also Published As
Publication number | Publication date |
---|---|
JP6593453B2 (ja) | 2019-10-23 |
US20190176224A1 (en) | 2019-06-13 |
KR20180088854A (ko) | 2018-08-07 |
JPWO2017094741A1 (ja) | 2018-09-13 |
CN108290212A (zh) | 2018-07-17 |
KR102070271B1 (ko) | 2020-01-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0039169B1 (en) | Amorphous metal filaments and process for producing the same | |
US10661334B2 (en) | Amorphous alloy ribbon and method of producing the same | |
JPH0113944B2 (ja) | ||
JP6593453B2 (ja) | 金属薄帯の製造装置及びそれを用いた金属薄帯の製造方法 | |
JP2011189356A (ja) | 双ロール鋳造方法および双ロール鋳造機 | |
JP6213101B2 (ja) | スカム堰、薄肉鋳片の製造方法及び薄肉鋳片の製造装置 | |
JP6994392B2 (ja) | チタンを主成分とする合金からなる鋳塊、および、その製造方法 | |
JP2010125498A (ja) | 平版印刷版用アルミニウム合金板の製造装置 | |
JP2018188725A (ja) | 高融点活性金属の合金からなる鋳塊、および、その製造方法 | |
JP4969808B2 (ja) | 磁気特性に優れた鉄系非晶質薄帯の製造方法及び製造装置 | |
JP4505811B2 (ja) | 合金溶湯の鋳造方法 | |
KR102171768B1 (ko) | 금속 소재 제조장치 및 그 방법 | |
JP7127505B2 (ja) | 薄肉鋳片の製造方法 | |
JP7406073B2 (ja) | チタン鋳塊の製造方法 | |
WO2023022002A1 (ja) | Fe-Si-B系厚板急冷凝固合金薄帯の製造方法 | |
JP7376790B2 (ja) | チタン鋳造用装置 | |
JP2005021950A (ja) | アモルファス合金薄帯の製造方法 | |
JPH0260752B2 (ja) | ||
JPS649907B2 (ja) | ||
JPH0751820A (ja) | 高純度アルミニウム合金の連続鋳造方法 | |
JPS649909B2 (ja) | ||
JPH03133552A (ja) | 急冷金属薄帯の製造方法 | |
JP2001172704A (ja) | 金属フレークの製造方法 | |
JPS63203254A (ja) | 金属薄帯連続鋳造用注湯装置 | |
JP2001212658A (ja) | 遠心力鋳造方法及び溶湯供給装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16870678 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2017554122 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20187018138 Country of ref document: KR Kind code of ref document: A |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16870678 Country of ref document: EP Kind code of ref document: A1 |