WO2008139858A1 - 非晶質合金薄帯の製造方法及び製造装置 - Google Patents
非晶質合金薄帯の製造方法及び製造装置 Download PDFInfo
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- WO2008139858A1 WO2008139858A1 PCT/JP2008/057784 JP2008057784W WO2008139858A1 WO 2008139858 A1 WO2008139858 A1 WO 2008139858A1 JP 2008057784 W JP2008057784 W JP 2008057784W WO 2008139858 A1 WO2008139858 A1 WO 2008139858A1
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- WIPO (PCT)
- Prior art keywords
- polishing
- cooling roll
- amorphous alloy
- alloy ribbon
- producing
- Prior art date
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- 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
-
- 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
- B22D11/0665—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
- B22D11/0674—Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating for machining
Definitions
- the present invention relates to a bright method and apparatus for producing an amorphous alloy ribbon by injecting a molten alloy onto the surface of a cooling roll and rapidly solidifying it, and in particular, during the production of the ribbon, the surface of the cooling nozzle It relates to an on-line polishing method and apparatus.
- a molten alloy is jetted onto the circumferential surface of a cooling roll that rotates at high speed, and rapidly cooled and solidified by the heat removal action of the cooling roll.
- a method for producing an amorphous alloy ribbon usually, a molten alloy is jetted onto the circumferential surface of a cooling roll that rotates at high speed, and rapidly cooled and solidified by the heat removal action of the cooling roll.
- One method is generally adopted.
- the molten alloy it is necessary to quenched with 1 0 4 to 1 0 of about 5 / sec cooling rate. For this reason, a cooling roll made of a metal material having a high thermal conductivity such as a copper alloy is usually used as a cooling roll that rapidly takes heat away from the molten alloy.
- the amorphous alloy ribbon When an amorphous alloy ribbon is manufactured industrially, after the molten alloy is rapidly solidified by a cooling roll, the amorphous alloy ribbon is continuously wound while being peeled off from the cooling roll. Since the molten alloy is in direct contact with the surface of the roll, as the manufacturing progresses, the surface of the cooling port is damaged due to thermal history, solidification of the molten alloy, etc., and the surface roughness of the cooling roll increases. The material of the surface layer portion of the cooling roll may deteriorate. This phenomenon adversely affects the surface properties, magnetic properties, etc. of the amorphous alloy ribbon, and sometimes causes the amorphous alloy ribbon to break during manufacturing.
- the cooling roll surface is oriented at an angle of 15 ° or more with a cup brush or a rotary brush with respect to the longitudinal direction of the ribbon.
- a polishing method has been proposed in which the material is polished.
- JP-A-6 3-0 9 0 3 4 3 four types of emery papers with different particle sizes are pressed against the circumferential surface of the cooling roll by a spring mechanism in the order of coarse particle size. A method of polishing the surface of the metal has been proposed.
- Japanese Patent Laid-Open No. 3-16960 4 proposes an on-line measuring device for measuring the surface roughness of a chill roll, and a method for polishing or grinding based on the output of the on-line measuring device.
- Kaihei 7— 1 7 8 5 1 6 and Japanese Patent Application Laid-Open No. 7 — 1 7 8 5 1 7 describe that the surface of the cooling roll is polished with a brush roll, and the polishing powder and brush dust generated by the polishing are scraped in a comb blade shape.
- there is a method of removing with an apparatus Japanese Patent Laid-Open No. 5-8-0 2 5 8 4 8, Japanese Patent Laid-Open No. 5 8-0 2 9 5 5 7, Japanese Patent Laid-Open No.
- An object of the present invention is to provide a manufacturing method and a manufacturing apparatus capable of mass-producing a ⁇ £ non-alloy alloy ribbon excellent in magnetic properties.
- the present inventor has developed a technique for maintaining the circumferential surface of the cooling roll in a healthy state for a long time during the production of the amorphous alloy ribbon.
- the embodiment was intensively investigated. As a result, (i) When the molten alloy solidifies on the chill roll and the ribbon contracts, the solidified part that bites into the fine recesses on the surface of the chill roll pulls the surface of the chill roll and generates wrinkles. (Ii) The shrinkage of the ribbon is greatest at both ends in the width direction of the ribbon. (Iii) Over time, damage to the circumferential surface of the cooling roll abutting on both ends of the ribbon is in the center. It became clear that it was larger than damage.
- the method of polishing in the rotation direction of the cooling port is adjusted. If the polishing member is changed and polished, that is, if the polishing member having different polishing characteristics is arranged and polished, the circumferential surface of the cooling roll whose degree of damage is different between the central portion and the both ends of the ribbon is always maintained in a healthy state. I have come to know that this is possible.
- the present invention has been made on the basis of the above findings, and the gist thereof is as follows.
- a region obtained by dividing the polishing in the width direction of the cooling roll is arranged in parallel.
- the polishing member is polished by combining any two of a cylindrical brush roll, a polishing pad, polishing paper, and a polishing belt made of a polishing material in which abrasive grains are knitted into a resin fiber wire.
- the element that changes the polishing method is any one of the material, shape, polishing roughness, hardness, density (number of abrasives per unit area), contact area, and pressing force of the polishing member.
- the method for producing an amorphous alloy ribbon according to (1) is any one of the material, shape, polishing roughness, hardness, density (number of abrasives per unit area), contact area, and pressing force of the polishing member.
- Figure 1 shows the change in the roughness in the width direction of the cooling roll when the amorphous alloy ribbon is continuously manufactured for 20 minutes without polishing the circumferential surface of the cooling roll (the roughness at the center). It is a figure which shows (roughness ratio when 1).
- Fig. 2 (a) shows the change in roughness with respect to the manufacturing time of the center part of the cooling roll and the contact end (strip end) when an amorphous alloy ribbon is manufactured without polishing the circumferential surface of the cooling roll ( (Roughness ratio when the cooling roll roughness before production is 1)
- Figure 2 (b) shows the circumferential surface of the cooling roll between the polishing means and the cooling roll using two polishing means.
- Contact length (Polished length) Changes in roughness with respect to the production time of the center part of the cooling roll and the contact end (the end of the ribbon) when an amorphous alloy ribbon is produced with varying L (Roughness ratio when cooling roll roughness before production is 1)
- Fig. 3 (a) is a diagram showing an embodiment of a single roll apparatus for producing an amorphous alloy ribbon according to the example of the present invention
- Fig. 3 (b) shows an amorphous alloy ribbon according to the example of the present invention
- FIG. 3 (c) is a view showing another embodiment of a single roll apparatus for manufacturing an amorphous alloy ribbon according to an example of the present invention.
- FIG. 4 is a view showing an embodiment of a polishing means in which the polishing method is changed over the circumferential surface of the cooling roll in the width direction.
- (A) shows the case where the polishing roughness is changed, and
- (b) shows the case where the abrasive density is changed.
- FIG. 5 is a diagram showing another aspect of the polishing means in which the polishing method is changed over the circumferential surface of the cooling roll in the width direction.
- A shows the case where the polishing roughness is changed
- (b) shows the case where the abrasive density is changed
- (c) shows the case where the pressing force is changed.
- FIG. 6 is a view showing another aspect of the polishing means in which the polishing method is changed over the circumferential surface of the cooling roll in the width direction.
- A shows a case where the polishing roughness is changed in a two-stage divided polishing mode
- (b) shows a case where the abrasive density is changed in a two-step divided polishing mode.
- c) shows a case where the contact area is changed in the two-stage split polishing mode.
- Fig. 7 (a) shows the case where multiple stages of polishing means are installed by changing the polishing method across the circumferential surface of the cooling roll
- Fig. 7 (b) shows the circumferential surface of the cooling roll in the width direction.
- Figure 1 shows the results of investigating the change in roughness in the width direction of the cooling roll for each manufactured amorphous alloy ribbon. Specifically, on the circumferential surface of the cooling roll in contact with the molten alloy, The roughness increases toward the contact edge (the ribbon edge) compared to the roughness at the center.
- the difference in roughness between the center and the contact edge (the end of the ribbon) increases as the width of the amorphous alloy ribbon increases, and becomes noticeable when the width of the amorphous ribbon is 50 mm or more. It becomes.
- the present inventors have found that, as the amorphous alloy ribbon is produced, the cooling roll is formed at the center portion and the contact end portion (the ribbon end portion) of the circumferential surface of the cooling roll. It was found that the difference in the surface roughness of the steel and the increase in the difference was caused by thermal shrinkage in the width direction of the cooling roll that occurred during solidification of the molten alloy. That is, when the molten alloy solidifies on the surface of the cooling roll, it shrinks on the cooling port. At this time, the alloy that has already solidified by biting into the minute recesses on the surface of the cooling roll becomes the center of the cooling roll. The surface of the cooling roll is pulled and pulled, and as a result, the surface of the cooling roll is damaged and roughened.
- the molten alloy tends to bite into the damaged part, and the damage to the chill roll increases as the manufacturing progresses.
- Thermal shrinkage during solidification of the molten alloy occurs in the width direction and longitudinal direction of the cooling roll, but in the longitudinal direction, the width of the molten alloy to be supplied is almost constant. Therefore, the amount of heat contraction in the longitudinal direction of the cooling roll (direction of rotation of the cooling roll) is equal, and the width in the longitudinal direction of the molten alloy is as narrow as several mm or less, so the amount of heat shrinkage is also small.
- the degree of roughening of the cooling roll due to shrinkage is almost the same, and the degree of roughening of the cooling roll due to thermal shrinkage is also small.
- the contraction length of the contact end portion is longer than the contraction length of the central portion, so the contact end portion (thin strip end portion) and its vicinity The degree of surface damage at this point is greater than at the center.
- the inventors of the present invention noticeably develop this phenomenon when an amorphous alloy ribbon having a width of 50 mm or more is produced continuously for 5 minutes or longer without polishing the circumferential surface of the cooling roll. It was confirmed.
- Fig. 2 (a) shows the central part and contact end in the case where an amorphous alloy ribbon having a width of 106 mm was produced without changing the circumferential surface of the cooling roll, with different production times. The change in roughness of the cooling roll at the end of the ribbon is shown. The damage at the center is small even if the manufacturing time is extended (see ⁇ mark in the figure), but at the contact end (thin ribbon end, edge) continues for more than 5 minutes. If it is manufactured in this way, damage will increase (see ⁇ in the figure), and strip properties and magnetic properties will deteriorate.
- the two polishing means 9a and 9b are arranged in the rotation direction of the cooling roll.
- the polishing means 9a and 9b always contact the circumferential surface of the cooling roll with the length L and polish the surface area of the length L.
- the above length L is an important index for improving the polishing efficiency of the contact edge (thin ribbon edge) where the degree of surface damage is large in one cooling port.
- the present inventors have changed the contact length (hereinafter also referred to as “polishing length 1”) L with respect to the circumferential surface of the cooling hole in an abrasive member having required polishing characteristics.
- Amorphous alloy ribbon is manufactured while polishing online, and the surface roughness of the cooling roll at the contact end (thin end) where damage is maximized and at the center where damage is minimized is measured. did.
- Fig. 2 (b) shows (result when two polishing means are arranged in the rotation direction of the cooling roll). From Fig. 2 (b), the contact length (polishing length) L is It can be seen that when the cooling roll circumference is 0.2% or more, the difference in roughness between the contact end (the ribbon end) and the center is almost eliminated and smoothing can be achieved. Therefore, in the present invention, the contact length (polishing length) L of the polishing means is set to 0.2% or more of the circumference of the cooling roll.
- the amorphous alloy thin film is manufactured during the production of the ribbon.
- polishing the circumferential surface of the cooling roll after peeling the strip it is possible to polish the polishing material in the width direction of the cooling roll while changing the polishing method according to the surface properties of the circumferential surface of the cooling roll. This is a feature of the present invention.
- At least two polishing members with different polishing characteristics are arranged in the rotation direction of the cooling roll, and
- polishing member is polished while contacting the circumferential surface of the cooling roll with a length of 0.2% or more of the circumference of the cooling roll.
- the chill roll In the production of the amorphous alloy ribbon by the single roll method, the chill roll contacts and solidifies every round, so the surface of the chill roll is damaged every rotation due to thermal shrinkage during solidification. Receive.
- an abrasive member In order to maintain the circumferential surface of the cooling roll in a healthy state, when an abrasive member is arranged on the circumferential surface of the cooling roll, it contacts and polishes at one point in the rotational direction once per rotation. Therefore, in order to maintain a healthy cooling roll circumferential surface using polishing members having different polishing characteristics that can realize polishing at a desired roughness level, it is necessary to increase the polishing efficiency in a single contact.
- the inventors of the present invention significantly increase the polishing efficiency by combining abrasives having different polishing characteristics, rather than installing a plurality of abrasives having the same characteristics or in a wide range. It was found that the surface state of the initial cooling roll can be maintained almost uniformly throughout the cooling roll width direction until the amorphous alloy ribbon is manufactured.
- Fig. 3 (a) to (c) shows an embodiment of a single roll apparatus for producing an amorphous alloy ribbon according to the present invention.
- the opening surface of the ejection nozzle 3 is brought close to the circumferential surface of the cooling roll 5 rotating at high speed, A molten alloy 2 in the tundish 1 is ejected from the slurry 3 to continuously produce the amorphous alloy ribbon 6.
- next winding roll 7 b is waiting in the vicinity of the amorphous alloy ribbon, and when the winding amount of the winding roll 7 a reaches a predetermined amount, the amorphous roll
- the quality alloy ribbon 6 is cut (the cutting device is not shown) and is switched to the next scraping roll 7b.
- a winding roll 7 a wound with a predetermined amount of amorphous alloy ribbon is replaced with a new winding roll (not shown) by an exchange device, and then the force rosel reel 8 is rotated and wound.
- the amorphous alloy ribbon is produced for a long time.
- the circumferential surface of the cooling roll 5 after peeling off the amorphous alloy ribbon 6 is polished online by the polishing means 9 in contact with the circumferential surface of the cooling roll.
- the circumferential surface is polished in the width direction by changing the manner of polishing (polishing method).
- Factors that change the polishing method include the material, shape, roughness, hardness, density (number of abrasives per unit area), contact area, and pressing force of the polishing member. Although it can be formed by appropriately selecting in the width direction, it preferably has a polishing characteristic capable of maintaining the required contact length L for a long time.
- Fig. 4 shows an embodiment in which the polishing is performed in the width direction of the cooling roll and the circumferential surface of the cooling roll is polished by changing the polishing method in the width direction.
- the polishing member is divided into a central portion and both end portions, and polishing members having different polishing characteristics are arranged at the central portion and both end portions.
- the polishing member since the degree of damage in the width direction of the cooling roll is larger at the contact end (the strip end) and the vicinity thereof than at the center, the polishing member has a corrosion end (thin It is necessary to have a polishing characteristic such that the polishing ability at both ends of the belt edge portion and its vicinity is larger than the polishing ability at the center portion.
- the surface roughness of the chill roll must be suppressed to a level that does not deteriorate the characteristics of the amorphous alloy ribbon, and an appropriate abrasive member must be determined in advance by experiments. There is.
- Fig. 4 (a) shows that the polishing capacity at the contact end (the ribbon end) and at both ends that polish the vicinity is larger than the polishing capacity at the center.
- Figure 4 (b) shows the case where the polishing roughness of the polishing member is the same and the polishing density is changed.
- the polishing density at the center is reduced (roughly) and the polishing density at both ends is increased (densely). This is an example.
- Figure 4 shows the state of polishing when the center and both ends are divided and the method of polishing is changed.
- the width of the division can be determined according to the degree of damage in the width direction of the cooling roll.
- the classification itself for forming a further region of the polishing characteristics may be determined according to the degree of damage in the width direction of the cooling roll.
- the division width of the central portion may be made relatively narrow, and both end portions may be divided into two to form different polished regions.
- the polishing member is not limited to a specific polishing member as long as the circumferential surface of the cooling roll is configured with a shape and material that can change the way of polishing over the width direction, but the polishing state is arbitrarily adjusted. Can be maintained in a polished state for a long time.
- Straight brushes, cup brushes, etc. are preferable, and the abrasive is softer than the surface hardness of the cooling tool and resistant to friction with the surface of the cooling roll, for example, resin fiber wire braided with abrasive grains, resin fiber wire Those coated with or adhering to abrasive grains, and those obtained by kneading abrasive grains into a resin fiber wire are preferred.
- polishing pads, polishing paper, polishing belts, and the like can be applied as polishing members because they are easily available. In order to make the polishing finish uniform, the polishing member may be swung in the cooling roll width direction.
- polishing characteristics and polishing state of the 9a and 9b installed to increase the polishing efficiency in the direction of rotation of the cooling roll it is important to change the polishing characteristics and polishing state of the 9a and 9b installed to increase the polishing efficiency in the direction of rotation of the cooling roll. That is, in the single roll apparatus shown in FIG. 3a, even if the polishing member 9b employs the same member as 9a as the polishing means, the polishing characteristics may be different from the polishing characteristics of the polishing means 9a. is necessary.
- the polishing characteristics of the polishing member 9b are naturally set according to the surface properties of the circumferential surface of the cooling roll polished by the preceding polishing member.
- the rotation direction in this case can be either forward rotation or reverse rotation with respect to the cooling roll rotation direction. It is more preferable to arrange a suction device for this purpose in the vicinity of the brush roll.
- means 9c for directly pressing the polishing member against the circumferential surface of the cooling roll may be adopted.
- the polishing member a polishing pad or a polishing paper / polishing belt having a mechanism capable of continuously supplying a new surface is preferable.
- the polishing pad and the polishing belt polish the circumferential surface of the cooling roll, Since it has a function to clean, the contact length on the circumferential surface of the cooling roll
- the cooling roll has a shape matching the outer peripheral surface so that a predetermined contact length can be obtained, and a mechanism such as pressing with a soft rubber so that it can be deformed according to the outer peripheral surface of the cooling roll. When provided, it is more preferable.
- the degree of damage of the circumferential surface of the cooling roll can be measured online, and the polishing means can be brought into contact with the circumferential surface of the cooling roll continuously or intermittently based on the measurement result. Good.
- FIG. 5 shows another embodiment in which the polishing member is polished in the width direction of the cooling roll and the circumferential surface is polished in the width direction.
- the polishing member may be divided in the width direction of the cooling roll and arranged in parallel.
- the polishing roughness of the central polishing means is reduced, the polishing roughness of the polishing means at both ends is increased, and the polishing state is changed to polishing in the width direction of the cooling roll. It is.
- the polishing member is the same at the center and at both ends, but the pressing force of the polishing member at the center is reduced, the pressing force of the polishing member at both ends is increased, and the cooling roll This is a case where the polishing state is changed for polishing in the width direction.
- the division mode is not limited to the three divisions shown in FIG.
- the circumferential surface of the cooling roll is online. Measure the degree of damage on the circumferential surface with the IN, and based on the measurement results, contact the polishing member with the circumferential surface of the cooling roll as a single unit, or with each polishing member individually, continuously or intermittently You may let them.
- the polishing member may be swung in the width direction of the cooling roll in order to gently change the manner of polishing at the polishing section.
- the circumferential surface of the cooling roll between the polishing members may be insufficiently polished, or the entire width direction may be insufficiently polished.
- the polishing members 9 x and 9 y are arranged in a plurality of stages so as to partially or entirely overlap in the circumferential direction of the cooling roll, and polishing is performed step by step. May be.
- the polishing roughness of the center polishing member is made finer, the polishing roughness of the polishing member at both ends is made rough, and the polishing in the width direction of the cooling port is polished. This is the case when the polishing method is changed.
- the two-stage split polishing mode shown in Fig. 6 (b) reduces the polishing density at the center, increases the polishing density of the polishing members at both ends, and changes the polishing method to polishing in the width direction of the cooling roll. Is the case.
- the two-stage split polishing mode shown in Fig. 6 (c) is the same for all polishing means. However, by making both ends double, the contact area (polishing area) at both ends is increased and the width direction of the cooling roll is increased. This is the case when the polishing method is changed to polishing.
- the divided polishing mode shown in FIG. 7 (a) is the same as the cooling roll in the width direction of the cooling roll, and the polishing member shown in FIG. 4 (a) is changed into multiple stages (FIG. 7 (a) ) In case of two-stage installation).
- the divided polishing mode shown in FIG. 7 (b) has the surface roughness in the cooling roll width direction next to the polishing member shown in FIG. 4 (a) in which the polishing method is changed in the width direction of the cooling roll.
- a plurality of polishing members that do not change in the polishing direction in the width direction are arranged in the rotation direction of the cooling roll.
- the circumferential surface of the cooling roll is measured online, and the degree of damage to the circumferential surface is measured.
- the polishing members are integrated or individual polishing members are continuously connected. Alternatively, it may be brought into contact with the circumferential surface of the cooling roll, or the polishing means may be swung in the width direction of the cooling roll in order to gently change the polishing at the polishing section. Further, in the present invention, as shown in FIG.
- a device for cleaning the circumferential surface of the cooling roll it is possible to employ spraying / suctioning of gas, pressing a cloth directly on the circumferential surface of the cooling roll, or using a brush roll that does not contain abrasives.
- a brush roll that does not contain abrasives.
- the brush mouth like the polishing means, a material that is softer than the surface hardness of the cooling roll and resistant to friction on the surface of the cooling roll, for example, a cylindrical brush roll made of a resin fiber wire is preferable.
- the circumferential surface of the cooling roll after separating the amorphous alloy ribbon is polished, in the width direction of the cooling roll, the degree of damage to the cooling roll is reduced. Accordingly, since the polishing state is changed and the polishing is performed, the circumferential surface of the cooling roll can be always maintained in a healthy state for a long time.
- the polishing member was a resin-made brush roll having an outer diameter of ⁇ 100 mm and a length of 25 mm, and as shown in FIG. mm is polishing roughness # 1 0 0 0, 1 at both ends
- the polishing roughness was set to 0 0 mm.
- Example 2 of the present invention the split polishing is performed in two stages, and as shown in FIG. 6 (a), the outer diameter ⁇ 10 O mm, the length 10 O mm, and the polished rough, Using # 1 0 0 0 resin brush roll,
- a resin brush roll having a length of 100 mm, a length of 100 mm, and a polishing roughness of # 500 was used.
- Example 3 of the present invention is also divided into two steps, and as shown in FIG. 6 (c), the outer diameter ⁇ 100 mm, the length 100 mm, and the polishing roughness # 10 at both ends of the first step.
- a resin brush roll with a diameter of 100 mm, a length of 2500 mm, and a polishing roughness of # 100 mm was used in the second stage. . Note that the distance between the first and second brushes was 50 mm.
- Example 4 of the present invention as polishing roughness # 1 0 0 0, and 100 mm at both ends is defined as polishing roughness # 5 0 0.
- the second stage is equipped with a mechanism that can supply a new polished surface continuously.
- the first and second stages are made of abrasive paper with a width of 2500 mm and a roughness of # 1 0 00 The distance between the eye polishing means was 200 mm.
- the comparative example 1 is made of a resin having the same polishing characteristics in the direction of the reel width, an outer diameter of ⁇ 100 mm, a length of 2500 mm, and a polishing roughness of # 10: 00
- Comparative Example 2 using a brush roll of 2 mm width, polishing roughness # with a mechanism that can continuously supply a new polishing surface
- Magnetic properties are as follows: Fe-type amorphous alloy ribbon sample (width: 25 mm x length: 120 mm), heat treatment at 36 ° C x 1 hour After that, the iron loss (1.3 T, 50 ⁇ ) was measured with an SST (Single Sheet Tester) apparatus. The results are also shown in Table 1.
- the atomic percentage is Fe: 80.5%, Si: 6.5%, B: 12% C: 1% of Fe-based molten alloy is placed on the surface of a chill roll with a chill roll diameter of 1 1 9 8 mm and a roll width of 2 5 0 mm, 1 70 mmX 0.85 mm and 1 0 6 mmX 0.85 mm
- a rectangular slit-shaped Fe-type amorphous alloy ribbon with a plate width of 1700 mm, a plate thickness of about 30 m, a plate width of about 10 mm, and a plate thickness of about 30 Manufactured.
- the peripheral speed of the cooling roll during production was 2 l m / s.
- a sample was taken from the production end position of the produced amorphous ribbon, divided in the plate width direction, measured for magnetic properties, and compared with the magnetic properties at the center and the ribbon end.
- the collected Fe-based amorphous alloy ribbon sample (width 25 mm x length 120 mm) was measured at 3600 ° CXI.
- the iron loss (1.3 T, 50 Hz) was measured with an SST (Single Sheet Tester) apparatus.
- Table 2 shows the manufacturing conditions and measurement results.
- the polishing member 1 and the polishing member 2 shown in Table 2 were installed in this order in the rotation direction of the cooling roll.
- Comparative Example 1 2 only the cooling means 1 is used, so even if the contact length (polishing length) L is set to 0.3%, the contact end (the ribbon end) of the cooling roll cannot be prevented from being damaged. The iron loss at the end of the ribbon has deteriorated.
- the circumferential surface of the cooling roll having a different degree of damage in the width direction of the cooling roll is polished online, for a long time. It is possible to maintain a healthy state in the width direction of the cooling roll, and as a result, it is possible to stably mass-produce amorphous alloy ribbons having excellent magnetic properties.
Abstract
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US12/451,314 US8096345B2 (en) | 2007-05-08 | 2008-04-16 | Method and apparatus for producing amorphous ribbon |
CN2008800150957A CN101678443B (zh) | 2007-05-08 | 2008-04-16 | 非晶合金薄带的制造方法和制造装置 |
Applications Claiming Priority (4)
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JP2007123424A JP5228371B2 (ja) | 2007-05-08 | 2007-05-08 | 非晶質合金薄帯の製造方法及び製造装置 |
JP2007123323A JP5079385B2 (ja) | 2007-05-08 | 2007-05-08 | 非晶質合金薄帯の製造方法及び製造装置 |
JP2007-123323 | 2007-05-08 | ||
JP2007-123424 | 2007-05-08 |
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US (1) | US8096345B2 (ja) |
CN (1) | CN101678443B (ja) |
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WO (1) | WO2008139858A1 (ja) |
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DE102010036401B4 (de) | 2010-07-14 | 2023-08-24 | Vacuumschmelze Gmbh & Co. Kg | Vorrichtung und Verfahren zum Herstellen eines metallischen Bands |
DE112013001191T5 (de) * | 2012-03-15 | 2014-11-13 | Hitachi Metals Ltd. | Band aus amorpher Legierung und Herstellungsverfahren davon |
CN102909329B (zh) * | 2012-11-05 | 2014-05-14 | 江苏锦宏有色金属材料有限公司 | 多喷嘴用非晶合金带分带器 |
CN105531043B (zh) * | 2013-09-30 | 2017-07-04 | 日立金属株式会社 | 再生合金材料的制造方法和再生非晶合金带的制造方法 |
CN105196178A (zh) * | 2014-06-26 | 2015-12-30 | 宝山钢铁股份有限公司 | 非晶、纳米晶制带用冷却辊辊面粗糙度控制装置及方法 |
EP3584020B1 (en) * | 2017-02-14 | 2022-03-23 | Hitachi Metals, Ltd. | Fe-based amorphous alloy ribbon manufacturing method, fe-based amorphous alloy ribbon manufacturing device, and wound body of fe-based amorphous alloy ribbon |
KR102451085B1 (ko) * | 2017-03-31 | 2022-10-05 | 히타치 긴조쿠 가부시키가이샤 | Fe기 나노 결정 합금용의 Fe기 아몰퍼스 합금 리본 및 그 제조 방법 |
CN108817407A (zh) * | 2018-07-20 | 2018-11-16 | 芜湖君华材料有限公司 | 一种非晶合金带材加工成粉末的方法 |
DE102020104312A1 (de) * | 2020-02-19 | 2021-08-19 | Vacuumschmelze Gmbh & Co. Kg | Anlage und Verfahren zum Herstellen eines Bandes mit einer Rascherstarrungstechnologie sowie metallisches Band |
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- 2008-04-16 CN CN2008800150957A patent/CN101678443B/zh active Active
- 2008-04-16 WO PCT/JP2008/057784 patent/WO2008139858A1/ja active Application Filing
- 2008-04-16 US US12/451,314 patent/US8096345B2/en active Active
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TWI362303B (ja) | 2012-04-21 |
US20100132907A1 (en) | 2010-06-03 |
US8096345B2 (en) | 2012-01-17 |
CN101678443A (zh) | 2010-03-24 |
CN101678443B (zh) | 2013-01-16 |
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