Classifications

• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C38/00—Ferrous alloys, e.g. steel alloys
  • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
• • 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
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C38/00—Ferrous alloys, e.g. steel alloys
  • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
• • C—CHEMISTRY; METALLURGY
  • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
  • C22C—ALLOYS
  • C22C45/00—Amorphous alloys
  • C22C45/02—Amorphous alloys with iron as the major constituent
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
  • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
  • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
  • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
  • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
  • H01F1/147—Alloys characterised by their composition
  • H01F1/14766—Fe-Si based alloys
  • H01F1/14791—Fe-Si-Al based alloys, e.g. Sendust
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
  • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
  • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
  • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
  • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
  • H01F1/147—Alloys characterised by their composition
  • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
  • H01F1/15308—Amorphous metallic alloys, e.g. glassy metals based on Fe/Ni

Definitions

• Microcrystalline ribbon for high magnetic permeability magnetic material and its manufacturing method and ribbon product technology This invention is a fine crystalline ribbon for high magnetic permeability magnetic material and its manufacturing method. It is related to obi products, especially
• a cement alloy known as a high-permeability alloy is an alloy with Si ⁇ %, k £ 3 ⁇ 10% and the balance being substantially Fe. In this state, it is extremely brittle and prone to powder, and therefore plastic working is extremely difficult, and cutting and polishing requires the utmost care and cost.
• various alloys containing various other elements were added. This is known as a secondary alloy of the following alloys (hereinafter abbreviated as the alloy of the following alloy).
• a method of manufacturing a second alloy of the second alloy is proposed, which is characterized by obtaining a second alloy of the second alloy that is cooled and solidified in the form of a ribbon. , S-3.7%, Si 9.2%, k £ S ⁇ ⁇ %, ⁇ / .S%, and a ribbon-shaped cemented alloy'and Fe.hi, Si 9-. 0%, k £ .0%, Y / .0%, Ti 0 Zr 0.2%
• the 5th method is a method in which molten metal is jetted onto the moving and cooled surface of a cooling body by nozzles, and is rapidly cooled and solidified to produce an amorphous or fine crystalline quenched metal ribbon.
• the liquid quenching method among the methods that are known as the liquid quenching method, there is a liquid quenching method that uses a cemented alloy as the molten metal. it can .
• the present invention eliminates and improves the tensile strength and the low flexibility of the conventionally known fine crystalline ribbons for high-permeability magnetic materials, and reduces the tensile strength.
• the purpose is to provide a high-permeability 'high permeability' magnetic material, a'fine grain for material ', a crystalline thin film, a manufacturing method thereof, and a ribbon product. is there . That is, the present invention provides a fine crystalline ribbon for a high magnetic permeability magnetic material having the following composition and mechanical characteristics, a manufacturing method thereof, and a thin ribbon product.
• Fine crystalline ribbon for high magnetic permeability magnetic material with tensile strength ⁇ ? K unz or more and bending strain fx / 0_ 3 or more.
• a magnetic head core made from a fine crystalline ribbon for a high magnetic permeability magnetic material having a tensile strength of 2 or more and a bending crushing strain ⁇ ⁇ / ⁇ 3 or more.
• the present inventors have developed various additive elements to improve the brittleness of cement alloys and cement alloy ribbons produced by the liquid quenching method.
• As a result of repeated studies of compounding Mo 0.33 ⁇ 0%, Ni to ⁇ -0, and addition of Ga or less impairs the original high permeability magnetic properties of the cemented alloy.
• they have found that they are extremely effective in significantly improving mechanical properties, such as flexibility and tensile strength, and have completed the present invention.
• a simple explanation of the drawing surface Fig. 1 / Fig. 2 shows a ribbon manufacturing device with a metal rotating disc as a cooling body; a perspective view, Fig. 1 shows a metal twin roll as a cooling body.
• Figure ⁇ shows a metal rotating circle
• the thin ribbon of the present invention can be used in various processes necessary for processing into magnetic head cores, or transformers, laminated cores for transformers, winding cores, etc. It can be processed and handled in the processes such as stripping, punching, polishing, insulating coating, charging of heat treatment furnace, etc., it has good yield and little deterioration of material.
• the inventors of the present invention have the compositional composition of cement alloys and various cement-based alloys that are conventionally manufactured and used as a high-permeability magnetic material. Liquid from the melt
• the ribbon of the present invention was produced by the liquid quenching method. The manufacturing method of these ribbons will be described in detail later.
• ⁇ 22 is an alloy ribbon of the present invention.
• the tensile strength ⁇ is / / ⁇ 2/2
• the bending fracture strain sf is ./ ⁇ 2 times that of the thin ribbon / / / «?
• the ribbon of the present invention is Mo
• Ni is added and contained.
• the alloy according to the present invention contains Ni together with Mo, so that the magnetic properties of the alloy are deteriorated. And Ko
• the reason for limiting to ⁇ is that excellent high magnetic permeability characteristics can be obtained within this range, and the reason for limiting Ga to the following is that Ca is 5% more than 0.5%. This is because it deteriorates the high magnetic permeability characteristics. Also, Si
• the thin ribbon of the present invention is formed by spouting a molten material in a vacuum, air, inert gas atmosphere, etc. onto the moving cooling surface of a cooling object by quenching, quenching, and solidifying. O that can be manufactured
• the rotating outer peripheral surface of the metal rotating disk / as shown in Fig. 2 2
• the melt is ejected from the nozzle on the moving and cooled surface, the melt / is rapidly cooled and solidifies to form a ribbon / 2.
• the method for producing the ribbon is also called the liquid quenching method, and is the same as the widely used method for producing an amorphous or fine crystalline metal ribbon. Or a similar method, but a ribbon is manufactured from a melt having the composition of the ribbon of the present invention by the above-mentioned manufacturing method, and the tensile strength of the ribbon is ⁇ - As described above, the fine crystalline ribbon for high permeability magnetic material having a bending fracture strain of ⁇ / _3 or more and its manufacturing method have never been known.
• a carbon steel rotating disk containing C 0 2 and ⁇ 0. ⁇ % Of diameter JOcm as a cooling body. While rotating with JOOOr.p.ni., The melt consisting of the component composition of the ribbon of the present invention on the outer peripheral surface of rotation of the disk is jetted at 2-0 atm at / 3S0C. Therefore, it is possible to advantageously manufacture the ribbon of the present invention having a thickness of about J0 im and a width of about 30 and a length of m or more by fusing with a nozzle.
• the thin ribbon of the present invention has a small thickness, i It can be manufactured as a thin ribbon with excellent strength and bendability, and has high magnetic permeability characteristics, high specific resistance value, hardness and wear resistance comparable to those of cement alloys. Therefore, in addition to the known use as a magnetic head core, punching,
• the thin ribbon of the present invention has a small thickness and is usually a ribbon of about / O / im to / ri / im, and is a sheet-like object.
• the thin ribbon of the present invention has a small thickness and is usually a ribbon of about / O / im to / ri / im, and is a sheet-like object.
• the components that make up a transformer are ffi.
• the ribbon of the present invention is subjected to a heat treatment similar to that performed on a cement alloy or a known cement alloy, and the ribbon is The magnetic permeability characteristic is shown. That is, hold at high temperature of / 00 0 to / 00 'in a hydrogen stream or in vacuum for several minutes / 0 minutes to several hours, and then swell to some degree. Ri o'c. Rule-Random grids are mixed in a complicated manner due to slow cooling at a cooling rate of, and then to the outside of the post furnace, ffi, and rapid cooling at a cooling rate of about air cooling. In this state, the maximum magnetic permeability and the initial magnetic permeability are high, and the coercive force is small. '
• the alloy of the composition of the present invention having the composition shown in Table 2/0 g r is a slit with a depth of several meters and a width of about 300 to the bottom. After melting in an English tube with a nodular cross-section nozzle, the melting point is 0 to C higher than the temperature, and the temperature is higher than the temperature. ⁇ 2.
• the diameter of the jet made of iron or carbon steel is 0 ⁇ ⁇ ⁇ ⁇ , and the angle of injection with the radial direction is ⁇ / ri °.
• the jet flow was made to fall within the range of .. At this time, until the shape of the jet fluid reached the cooling surface, it became a droplet due to the effect of surface tension and became a sloppy drop. Therefore, the distance between the tip of the nozzle and the cooling surface should be small enough.
• the rotation speed of the cooling roll was / 000 ⁇ 3S00 r.p-m-, and various ribbon ribbons with a length of 5 " ⁇ or more and a thickness of / ⁇ 7 mm were produced.
• the ribbon of the present invention is a cement alloy, and is superior to the ribbon of a known cement alloy. It has the same tensile strength and bending fracture strain, and a comparable hardness 3 ⁇ 4: Not o.
• the alloy of the composition of the ribbon of the present invention shown in Table 2 in Table 2 prepared by the same method as that of the Example / has a diameter of about 0/1 /., " ⁇ '".
• ⁇ i In a high-purity hydrogen stream with a dew point of- ⁇ O'C while it is wound on an aluminum porcelain bobbin of approx. 0 '// at 00C, ⁇ ? 0 minutes hold until 00C. It was annealed at a cooling rate of 0 ° C / lir and then air-cooled outside the furnace at 00C. After that, wrap a measuring coil and measure the DC magnetic characteristics with an AUTOMATIC D-G-BH CURVES TRACER. We obtained a high maximum permeability im, an initial permeability at 0 / Oe, a low coercive force He of 0-/ and a magnetic flux density ⁇ 10 at / ⁇ . Send for comparison
• Example 3 The ribbon / about gr of the present invention shown in Table J prepared in the same manner as in Example 3 / was applied to an aluminum porcelain bobbin having a diameter of about 20. While applying MgO powder for interlayer insulation,
• Example ⁇ 2 It was wrapped around and subjected to the same heat treatment as in Example ⁇ 2. After that, a measuring coil was attached, and the actual erection permeability / was measured as the alternating current magnetic characteristics by changing the frequency, and the values shown in the table were obtained.
• a Fe-Ni-based alloy, an alloy-based alloy, or a mirror-finished object manufactured by known rolling is used as a reference.
• the effective magnetic permeability of the extruded sender plate is shown, the ribbon of the present invention showed an excellent value especially in the high frequency region.
• the ribbon of the present invention has a larger tensile strength, flexibility, and heat treatment than the conventional cement alloy ribbon or the cement alloy ribbon. It is a ribbon with magnetic characteristics that is comparable to that of the sender alloy, and it is also easy to manufacture. It is possible to manufacture iron cores for current transformers, and it is also possible to manufacture magnetic head cores with these ribbons. '' Industrial Applicability
• the ribbon of the present invention can be used as a high-permeability magnetic material, especially as a transformer or a current transformer core, and magnetic recording. It can also be used as a magnetic head for magnetic recording (VTR).

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Materials Engineering (AREA)
• Metallurgy (AREA)
• Organic Chemistry (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Dispersion Chemistry (AREA)
• Power Engineering (AREA)
• Soft Magnetic Materials (AREA)
• Continuous Casting (AREA)
• Magnetic Heads (AREA)

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• 1979
  • 1979-05-16 JP JP6071479A patent/JPS55152155A/ja active Granted
• 1980
  • 1980-05-10 WO PCT/JP1980/000100 patent/WO1980002620A1/ja not_active Ceased
  • 1980-05-10 US US06/230,953 patent/US4337087A/en not_active Expired - Fee Related
  • 1980-05-10 DE DE8080900837T patent/DE3069785D1/de not_active Expired
  • 1980-12-01 EP EP80900837A patent/EP0035037B1/en not_active Expired

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