WO2021182518A1 - Fe-Co系合金棒材の製造方法およびFe-Co系合金棒材 - Google Patents
Fe-Co系合金棒材の製造方法およびFe-Co系合金棒材 Download PDFInfo
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- WO2021182518A1 WO2021182518A1 PCT/JP2021/009570 JP2021009570W WO2021182518A1 WO 2021182518 A1 WO2021182518 A1 WO 2021182518A1 JP 2021009570 W JP2021009570 W JP 2021009570W WO 2021182518 A1 WO2021182518 A1 WO 2021182518A1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the working steps
- C21D8/1222—Hot rolling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the heat treatment
- C21D8/125—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the heat treatment with application of tension
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
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- 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
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- 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
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
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- 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2201/00—Treatment for obtaining particular effects
- C21D2201/05—Grain orientation
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/02—Magnetic
Definitions
- the present invention relates to a method for producing a Fe—Co alloy bar and a Fe—Co alloy bar.
- Fe-Co alloy rods typified by permendur (permendur), which are known as alloys with excellent magnetic properties, are used in various products such as sensors, cylindrical magnetic shields, solenoid valves, and magnetic cores.
- permendur permendur
- As a method for producing this Fe—Co alloy bar for example, in Patent Document 1, after heating an ingot to 1000 ° C. to 1100 ° C., it is hot-processed into a billet having a diameter of about 90 mm, and surface scratches and the like are removed with a lathe. It is described that the material (bar) is hot-rolled to about ⁇ 6 to ⁇ 9 mm after being heated to 1000 ° C. to 1100 ° C.
- an object of the present invention is to provide an Fe—Co alloy rod and a method for producing the same, which can stably obtain excellent magnetic properties.
- One aspect of the present invention includes a heating straightening step of applying tensile stress to a hot-rolled material of an Fe—Co alloy while heating the temperature of the hot-rolled material to 500 to 900 ° C.
- This is a method for producing a Co-based alloy bar.
- the temperature of the hot rolled material is 500 to 850 ° C.
- energization heating is used as the heating means in the heating straightening step.
- the solution treatment is performed before the heating straightening step.
- Another aspect of the present invention is an Fe—Co alloy bar having 20% or more of crystal grains having a GOS (Grain Orientation Spread) value of 0.5 ° or more in an area ratio.
- GOS Gram Orientation Spread
- the average crystal grain size number is 6.0 or more and 9.5 or less.
- the average crystal grain size number is 6.0 or more and 8.5 or less.
- a Fe—Co alloy bar having excellent magnetic properties can be stably obtained.
- the Fe—Co alloy bar of the present invention is a straight bar having a circular (including elliptical) cross-sectional shape and a square cross section. Unless otherwise specified, the bar material of the present embodiment is a round bar having a circular cross-sectional shape.
- a hot-rolled material of Fe—Co alloy is prepared.
- the Fe—Co alloy in the present invention refers to an alloy material in which Fe + Co is 95% or more in mass% and Co is 25 to 60%. As a result, a high magnetic flux density can be exhibited.
- the Fe—Co alloy of the present invention is one or two of V, Si, Mn, Al, Zr, B, Ni, Ta, Nb, W, Ti, Mo and Cr in order to improve workability and magnetic properties.
- the above elements may be contained up to a total of 5.0% in mass%.
- examples of impurity elements unavoidably contained include C, S, P, and O, and it is preferable that the upper limit of each of them is, for example, 0.1%.
- an intermediate material of the Fe—Co alloy bar material a billet obtained from an Fe—Co alloy steel ingot having the above-mentioned components is hot-rolled to obtain a hot-rolled material. Since an oxide layer is formed by hot rolling in this intermediate material, for example, a polishing step of mechanically or chemically removing the oxide layer may be introduced.
- This hot-rolled material has, for example, the shape of a "hot-rolled rod" corresponding to an Fe—Co alloy bar.
- the diameter may be 5 to 20 mm.
- the diameter equivalent to a circle in the cross section may be 5 to 20 mm.
- the hot-rolled material before the heating straightening step described later may be subjected to at least one solution treatment.
- This solution treatment is preferable because it can be expected to have the effect of removing the segregation of components of the hot-rolled material, improving the magnetic properties, and improving the workability. If the heating temperature during the solution treatment is too low, the workability tends to be deteriorated, and if it is too high, the magnetic properties are deteriorated. Therefore, it is preferable to carry out the heating temperature at a temperature of 800 to 1050 ° C. The lower limit of the more preferable temperature is 850 ° C.
- the upper limit of the more preferable temperature is 950 ° C, and the upper limit of the more preferable temperature is 900 ° C.
- the heating time can also be set to 10 to 60 minutes. Further, in the solution treatment step, in order to dissolve harmful precipitates in a solid solution without precipitating them, suppress regularization and improve processability, quenching treatment is carried out after heating. Even if the solution treatment step is omitted, the effect of the present invention can be obtained by adjusting the heating temperature in the heating straightening step described later.
- a heating straightening step of applying tensile stress to the hot-rolled material described above while heating is performed.
- the hot-rolled material has the shape of a "bar”
- the hot-rolled material is pulled in the length direction to apply the above-mentioned tensile stress.
- the heating temperature at this time is set to 500 to 900 ° C. If the temperature is lower than 500 ° C., the workability is lowered and the bar may be broken when tensile stress is applied.
- the heating temperature exceeds 900 ° C., it is not possible to impart a preferable residual strain to the hot rolled material.
- the lower limit of the preferable heating temperature in the heating straightening step is 600 ° C., more preferably 700 ° C.
- the upper limit of the preferable heating temperature is 850 ° C., more preferably 830 ° C., and further preferably 800 ° C.
- the lower limit of the preferable heating temperature is 700 ° C., more preferably 730 ° C., and further preferably 740 ° C.
- heating means such as energization heating and induction heating can be used, but the effect of facilitating the easy axis of magnetization of the crystal grains in the hot rolled material can be easily aligned in a certain direction, or the process is rapid (for example, 1). Within minutes.)
- energization heating it is preferable to apply energization heating.
- the tension during the heating straightening step is preferably adjusted to 1 to 4 MPa in order to obtain a desired residual strain more reliably. Further, it is preferable to adjust the elongation to 3 to 10% with respect to the total length before the heating straightening step.
- the bar material that has completed the heating straightening process may be subjected to centerless polishing using, for example, a centerless grinder.
- centerless polishing can be performed without cutting a long bar having a length of 1000 mm or more.
- the Fe—Co alloy bar of the present invention has 20% or more of crystal grains having a GOS (Grain Orientation Spread) value of 0.5 ° or more in an area ratio.
- GOS Garin Orientation Spread
- This GOS value can be measured by the conventionally known "SEM-EBSD method (electron backscatter diffraction method)", and can be derived by calculating the orientation difference of the points (pixels) constituting the crystal grains. can.
- the crystal orientation difference obtained by the GOS value is an index indicating the strain applied to the alloy by processing, and when the crystal grains having a GOS value of 0.5 ° or more are 20% or more in the area ratio, the crystal grain growth
- the driving force is introduced into the bar, which has the advantage of obtaining good magnetic properties.
- the region where the GOS value is 0.5 ° or more is less than 20%, good magnetic characteristics cannot be obtained because the bar material has an insufficient driving force for crystal grain growth.
- the area ratio is preferably 40% or more, the more preferable area ratio is 50% or more, and the more preferable area ratio is 60% or more, which is even more preferable.
- the area ratio is 70% or more, a particularly preferable area ratio is 80% or more, and the most preferable area ratio is 90% or more.
- the crystal grains having a GOS value of 0.5 ° or more can be observed in the cross section in the direction perpendicular to the axis of the bar.
- the cross section for observing the area ratio includes a cross section in the direction perpendicular to the axis and a cross section in the axial direction, but the area ratio is 20% or more (more preferable) in both the cross section in the direction perpendicular to the axis and the cross section in the axial direction of the bar. Is 40% or more, more preferably 50% or more, even more preferably 60% or more, particularly preferably 70% or more, and most preferably 80% or more).
- the Fe—Co alloy bar of the present invention preferably has an average crystal grain size number of 6.0 or more and 9.5 or less. This makes it easier to exhibit high magnetic properties after magnetic annealing, and tends to further improve workability.
- the lower limit of the more preferable average particle size number is 6.5 or more, and the upper limit of the more preferable average crystal size number is 9.0 or less.
- the upper limit of the average crystal particle size number is more preferably 8.5 or less, and even more preferably 8.0 or less.
- the average crystal grain size number can be measured based on JIS G0551. Then, it can be measured in the cross section in the direction perpendicular to the axis or the cross section in the axial direction of the bar.
- Example 1 An Fe—Co alloy steel ingot having the composition shown in Table 1 was ingot and then hot-rolled to prepare a hot-rolled bar having a diameter of 11.5 mm.
- Sample No. 2> After the hot-rolled bar is heated at 850 ° C and then rapidly cooled, it is melted and then heated so that the temperature of the bar is 750 ° C and the tension is 2.7 MPa in the length direction. A heating straightening step of pulling the hot-rolled bar was carried out, and the sample No. 1 and 2 Fe—Co alloy rods were produced.
- Example No. 3> The above-mentioned hot-rolled bar was not subjected to solution treatment, but a heating straightening step was carried out to obtain the sample No.
- sample No. 1 which is an example of the present invention.
- 3 Fe—Co alloy rods were produced.
- the conditions for the heating straightening process are the sample No. Same as 1.
- Sample No. 4> The sample No. was added to the hot-rolled bar as described above.
- Sample No. 1 is a comparative example in which the solution treatment under the same conditions as in No. 1 is performed, the heating straightening step is not performed, and the other steps are the same as in the present invention.
- the Fe—Co alloy rod of No. 4 was also produced.
- the average crystal grain size, GOS value, and DC magnetic characteristics of the samples of the present invention example and the comparative example were confirmed.
- For the average crystal grain size observe 10 fields of view of 500 ⁇ m ⁇ 350 ⁇ m using an optical microscope manufactured by Olympus in the cross section (cross section in the direction perpendicular to the axis), and in accordance with JIS G0551, the grain size number on the crystal grain size standard drawing plate I. was judged.
- the GOS value was measured using a field emission scanning electron microscope manufactured by ZEISS and an EBSD measurement / analysis system OIM (Orientation-Imaging-Micrograph) manufactured by TSL. Sample No. 1 and sample No. Regarding No.
- Example 2 An Fe—Co alloy steel ingot having the composition shown in Table 3 was ingot and then hot-rolled to prepare a hot-rolled bar having a diameter of 11.5 mm. After that, without performing the solution treatment, the heating straightening step was carried out under the condition of the tension of 2.7 MPa while heating so that the temperature of the bar material became the temperature shown in Table 4, and the sample No. 5 to 7 Fe—Co alloy rods were prepared. From the results in Table 4, the sample Nos. It was confirmed that all of 5 to 7 had low coercive force and had excellent magnetic characteristics.
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Abstract
Description
そこで本発明の目的は、優れた磁気特性を安定して得ることが可能な、Fe-Co系合金棒材とその製造方法を提供することである。
好ましくは、前記熱間圧延材の温度を500~850℃とする。
好ましくは、前記加熱真直工程の加熱手段に、通電加熱を用いる。
好ましくは、前記加熱真直工程の前に、溶体化処理を行う。
好ましくは、平均結晶粒度番号が6.0以上9.5以下である。
好ましくは、平均結晶粒度番号が6.0以上8.5以下である。
<熱間圧延材組成>
まず本実施形態では、Fe-Co系合金の熱間圧延材を準備する。本発明におけるFe-Co系合金とは、質量%でFe+Coが95%以上であり、且つ、Coを25~60%含有する合金材料のことを指す。これにより、高い磁束密度を発揮することができる。
この熱間圧延材は、例えば、Fe-Co系合金棒材に相当した“熱間圧延棒材”の形状を有する。そして、後工程における加工性を考慮して、直径5~20mmとしてもよい。なお丸棒以外の棒材に関しては、横断面の円相当径が5~20mmとしてもよい。
本実施形態では、後述する加熱真直工程を行う前の熱間圧延材に対して、少なくとも1回の溶体化処理を行ってもよい。この溶体化処理を行うことによって、熱間圧延材の成分偏析を除去して磁気特性を向上させ、加工性を改善する効果も期待できるため好ましい。この溶体化処理時の加熱温度は、低すぎると加工性を劣化させる傾向にあり、高すぎると磁気特性の劣化を招くため、800~1050℃の温度で実施することが好ましい。より好ましい温度の下限は、850℃である。より好ましい温度の上限は、950℃であり、さらに好ましい温度の上限は900℃である。また加熱時間は10分~60分に設定することもできる。また溶体化処理工程では、有害な析出物を析出させずに固溶させ、規則化を抑制して加工性を向上させるため、加熱後に急冷処理を実施する。なお、溶体化処理工程を省略しても、後述する加熱真直工程の加熱温度を調整することで、本発明の効果を得ることができる。
本実施形態では上述した熱間圧延材に対して、加熱しながら引張応力を付与する、加熱真直工程を行う。このとき、熱間圧延材が“棒材”の形状であるなら、この熱間圧延棒材の長さ方向に引張って、上記の引張応力を付与する。この工程により、熱間圧延材に残留歪みを付与させつつ、非常に良好な磁気特性および真直性を有する棒材を得ることができる。このときの加熱温度は、500~900℃に設定する。500℃より低い場合、加工性が低下し、引張応力を付与する際、棒材が破断するおそれがある。一方で加熱温度が900℃超の場合、熱間圧延材に好ましい残留歪みを付与させることができない。加熱真直工程における好ましい加熱温度の下限は600℃であり、より好ましくは700℃である。また、好ましい加熱温度の上限は850℃であり、より好ましくは830℃であり、さらに好ましくは800℃である。なお、上述した溶体化処理工程を省略する場合、好ましい加熱温度の下限は700℃であり、より好ましくは730℃であり、さらに好ましくは740℃である。
この加熱真直工程には、通電加熱、誘導加熱等の加熱手段を用いることができるが、熱間圧延材における結晶粒の磁化容易軸を一定方向へ揃えやすくする効果を得たり、急速(例えば1分以内。)かつ均一に材料を目標温度まで加熱できるという利点から、通電加熱を適用することが好ましい。また、加熱真直工程時の張力は、所望の残留歪みをより確実に得るために、1~4MPaに調整することが好ましい。また、加熱真直工程前の全長に対して3~10%の伸長に調整することが好ましい。
表1に示す組成を有するFe-Co系合金鋼塊を分塊後、熱間圧延を行ってΦ11.5mmの熱間圧延棒材を準備した。
<試料No.1、試料No.2>
前述の熱間圧延棒材を850℃で加熱した後急冷する溶体化処理を行った後、棒材の温度が750℃になるように加熱しながら張力2.7MPaの条件で、その長さ方向に熱間圧延棒材を引っ張る加熱真直工程を実施し、本発明例である試料No.1、2のFe-Co系合金棒材を作製した。
<試料No.3>
前述の熱間圧延棒材に溶体化処理を行わず、加熱真直工程を実施して本発明例である試料No.3のFe-Co系合金棒材を作製した。加熱真直工程の条件は試料No.1と同じとした。
<試料No.4>
前述の熱間圧延棒材に試料No.1と同条件の溶体化処理を行い、加熱真直工程を行わず、その他の工程は本発明と同じである比較例である試料No.4のFe-Co系合金棒材も作製した。
表3に示す組成を有するFe-Co系合金鋼塊を分塊後、熱間圧延を行ってΦ11.5mmの熱間圧延棒材を準備した。その後溶体化処理を行わず、棒材の温度が表4に示した温度となるように加熱しつつ張力2.7MPaの条件で加熱真直工程を実施し、試料No.5~7のFe-Co合金棒材を作製した。表4の結果より、棒材温度500~900℃で加熱真直工程を実施した試料No.5~7は、いずれも低保磁力であり、優れた磁気特性を有していることが確認できた。
Claims (7)
- Fe-Co系合金の熱間圧延材に対して、
前記熱間圧延材の温度を500~900℃に加熱しながら引張応力を付与する加熱真直工程を含む、Fe-Co系合金棒材の製造方法。 - 前記熱間圧延材の温度を500~850℃とする、請求項1に記載のFe-Co系合金棒材の製造方法。
- 前記加熱真直工程の加熱手段に、通電加熱を用いる、請求項1または請求項2に記載のFe-Co系合金棒材の製造方法。
- 前記加熱真直工程の前に、溶体化処理を行う、請求項1ないし請求項3のいずれかに記載のFe-Co系合金棒材の製造方法。
- GOS値(Grain Orientation Spread)が0.5°以上を示す結晶粒を面積比率で20%以上有する、Fe-Co系合金棒材。
- 平均結晶粒度番号が6.0以上9.5以下である、請求項5に記載のFe-Co系合金棒材。
- 平均結晶粒度番号が6.0以上8.5以下である、請求項5に記載のFe-Co系合金棒材。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202180019418.5A CN115279926B (zh) | 2020-03-10 | 2021-03-10 | Fe-Co系合金棒材的制造方法及Fe-Co系合金棒材 |
| US17/909,438 US12522898B2 (en) | 2020-03-10 | 2021-03-10 | Method for manufacturing Fe—Co-based alloy bar, and Fe—Co-based alloy bar |
| JP2022507248A JP7746984B2 (ja) | 2020-03-10 | 2021-03-10 | Fe-Co系合金棒材の製造方法およびFe-Co系合金棒材 |
| US19/404,024 US20260098325A1 (en) | 2020-03-10 | 2025-12-01 | Fe-Co-BASED ALLOY BAR |
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|---|---|---|---|
| JP2020040832 | 2020-03-10 | ||
| JP2020-040832 | 2020-03-10 |
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| US17/909,438 A-371-Of-International US12522898B2 (en) | 2020-03-10 | 2021-03-10 | Method for manufacturing Fe—Co-based alloy bar, and Fe—Co-based alloy bar |
| US19/404,024 Division US20260098325A1 (en) | 2020-03-10 | 2025-12-01 | Fe-Co-BASED ALLOY BAR |
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| Country | Link |
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| US (2) | US12522898B2 (ja) |
| JP (1) | JP7746984B2 (ja) |
| CN (1) | CN115279926B (ja) |
| WO (1) | WO2021182518A1 (ja) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023042279A1 (ja) * | 2021-09-14 | 2023-03-23 | 株式会社プロテリアル | Fe-Co系合金棒材 |
| WO2023042278A1 (ja) * | 2021-09-14 | 2023-03-23 | 株式会社プロテリアル | Fe-Co系合金棒材 |
| JPWO2024048138A1 (ja) * | 2022-08-31 | 2024-03-07 | ||
| WO2024048788A1 (ja) | 2022-09-02 | 2024-03-07 | 株式会社プロテリアル | Fe-Co系合金棒材の製造方法 |
| US12522898B2 (en) | 2020-03-10 | 2026-01-13 | Proterial, Ltd. | Method for manufacturing Fe—Co-based alloy bar, and Fe—Co-based alloy bar |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5224915A (en) * | 1975-08-22 | 1977-02-24 | Nippon Telegr & Teleph Corp <Ntt> | Alloy wire for wire dot printer and the production |
| JPS61130419A (ja) * | 1984-11-30 | 1986-06-18 | Tohoku Metal Ind Ltd | Fe−Co−V系鋳造磁性部品の製造方法 |
| JPH05304014A (ja) * | 1991-12-16 | 1993-11-16 | Nippon Steel Corp | 軟磁性の良好なFe−Co系軟磁性材料及び軟磁性電気部品組立体 |
| JP2002194475A (ja) * | 2000-12-27 | 2002-07-10 | Daido Steel Co Ltd | Fe−Co系合金の薄板とその製造方法 |
| JP2004515644A (ja) * | 2000-05-12 | 2004-05-27 | インフイ・ユジヌ・プレシジオン | 特に電磁アクチュエータの可動コア用の鉄−コバルト合金、およびその製造方法 |
| JP2006336038A (ja) * | 2005-05-31 | 2006-12-14 | Sanyo Special Steel Co Ltd | 高磁束密度材料およびその製造方法 |
| US20090184790A1 (en) * | 2007-07-27 | 2009-07-23 | Vacuumschmelze Gmbh & Co. Kg | Soft magnetic iron/cobalt/chromium-based alloy and process for manufacturing it |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB896881A (en) | 1957-11-20 | 1962-05-23 | Rola Company Australia Proprie | Improvements in or relating to methods of producing permanent magnet materials and to the permanent magnet materials so produced |
| US3805378A (en) | 1972-02-22 | 1974-04-23 | Bell Telephone Labor Inc | Manufacture of remanent reed switch |
| JP3388773B2 (ja) | 1992-01-22 | 2003-03-24 | ユニチカ株式会社 | 非晶質金属細線の熱処理方法 |
| JPH05279784A (ja) | 1992-04-01 | 1993-10-26 | Hitachi Metals Ltd | 高い強度および大きな伸びを有するFe−Co系磁性材料およびその製造方法 |
| JP3489860B2 (ja) | 1993-12-15 | 2004-01-26 | Necトーキン株式会社 | Fe−Co−V合金の線材製造方法 |
| JPH08300044A (ja) | 1995-04-27 | 1996-11-19 | Nippon Steel Corp | 棒線材連続矯正装置 |
| FR2743572B1 (fr) * | 1996-01-11 | 1998-02-13 | Imphy Sa | Alliage fer-cobalt, procede de fabrication d'une bande en alliage fer-cobalt et bande obtenue |
| US6153020A (en) | 1999-03-03 | 2000-11-28 | Lucent Technologies | Process for fabricating improved iron-cobalt magnetostrictive alloy and article comprising alloy |
| JP2003064451A (ja) | 2001-06-11 | 2003-03-05 | Hitachi Ltd | 複合傾斜合金板とその製造方法およびこの複合傾斜合金板を用いたシャドウマスクを備えたカラー陰極線管 |
| DE60327302D1 (de) | 2002-01-16 | 2009-06-04 | Nakagawa Special Steel Co Inc | Magnetisches grundmaterial, laminat aus magnetischem grundmaterial und herstellungsverfahren dafür |
| ATE418625T1 (de) * | 2006-10-30 | 2009-01-15 | Vacuumschmelze Gmbh & Co Kg | Weichmagnetische legierung auf eisen-kobalt-basis sowie verfahren zu deren herstellung |
| CN102296238A (zh) * | 2011-08-11 | 2011-12-28 | 广东省钢铁研究所 | 一种铁钴合金及其强磁介质棒材的制备方法 |
| CN103691741A (zh) | 2012-09-27 | 2014-04-02 | 日立金属株式会社 | Fe-Al系合金带钢的制造方法 |
| US10168392B2 (en) * | 2013-05-15 | 2019-01-01 | Carnegie Mellon University | Tunable anisotropy of co-based nanocomposites for magnetic field sensing and inductor applications |
| AT515148B1 (de) | 2013-12-12 | 2016-11-15 | Böhler Edelstahl GmbH & Co KG | Verfahren zur Herstellung von Gegenständen aus Eisen-Cobalt-Molybdän/Wolfram-Stickstoff-Legierungen |
| US20180119241A1 (en) | 2016-11-01 | 2018-05-03 | National Technology & Engineering Solutions Of Sandia, Llc | Severe Plastic Deformation of Iron-Cobalt-Vanadium Alloys |
| CN108130493A (zh) | 2016-12-01 | 2018-06-08 | 天津大学 | 高饱和磁感应强度、低矫顽力、高磁导率的铁钴基非晶合金材料及其制备方法 |
| WO2019059256A1 (ja) | 2017-09-25 | 2019-03-28 | 国立研究開発法人産業技術総合研究所 | 磁性材料とその製造法 |
| JP7258646B2 (ja) | 2018-08-02 | 2023-04-17 | 株式会社東芝 | 複数の扁平磁性金属粒子、圧粉材料及び回転電機 |
| JP7746984B2 (ja) | 2020-03-10 | 2025-10-01 | 株式会社プロテリアル | Fe-Co系合金棒材の製造方法およびFe-Co系合金棒材 |
-
2021
- 2021-03-10 JP JP2022507248A patent/JP7746984B2/ja active Active
- 2021-03-10 WO PCT/JP2021/009570 patent/WO2021182518A1/ja not_active Ceased
- 2021-03-10 CN CN202180019418.5A patent/CN115279926B/zh active Active
- 2021-03-10 US US17/909,438 patent/US12522898B2/en active Active
-
2025
- 2025-12-01 US US19/404,024 patent/US20260098325A1/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5224915A (en) * | 1975-08-22 | 1977-02-24 | Nippon Telegr & Teleph Corp <Ntt> | Alloy wire for wire dot printer and the production |
| JPS61130419A (ja) * | 1984-11-30 | 1986-06-18 | Tohoku Metal Ind Ltd | Fe−Co−V系鋳造磁性部品の製造方法 |
| JPH05304014A (ja) * | 1991-12-16 | 1993-11-16 | Nippon Steel Corp | 軟磁性の良好なFe−Co系軟磁性材料及び軟磁性電気部品組立体 |
| JP2004515644A (ja) * | 2000-05-12 | 2004-05-27 | インフイ・ユジヌ・プレシジオン | 特に電磁アクチュエータの可動コア用の鉄−コバルト合金、およびその製造方法 |
| JP2002194475A (ja) * | 2000-12-27 | 2002-07-10 | Daido Steel Co Ltd | Fe−Co系合金の薄板とその製造方法 |
| JP2006336038A (ja) * | 2005-05-31 | 2006-12-14 | Sanyo Special Steel Co Ltd | 高磁束密度材料およびその製造方法 |
| US20090184790A1 (en) * | 2007-07-27 | 2009-07-23 | Vacuumschmelze Gmbh & Co. Kg | Soft magnetic iron/cobalt/chromium-based alloy and process for manufacturing it |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12522898B2 (en) | 2020-03-10 | 2026-01-13 | Proterial, Ltd. | Method for manufacturing Fe—Co-based alloy bar, and Fe—Co-based alloy bar |
| WO2023042279A1 (ja) * | 2021-09-14 | 2023-03-23 | 株式会社プロテリアル | Fe-Co系合金棒材 |
| WO2023042278A1 (ja) * | 2021-09-14 | 2023-03-23 | 株式会社プロテリアル | Fe-Co系合金棒材 |
| US12522900B2 (en) | 2021-09-14 | 2026-01-13 | Proterial, Ltd. | Fe-Co-based alloy bar |
| US12522899B2 (en) | 2021-09-14 | 2026-01-13 | Proterial, Ltd. | Fe—Co-based alloy bar |
| JPWO2024048138A1 (ja) * | 2022-08-31 | 2024-03-07 | ||
| WO2024048138A1 (ja) | 2022-08-31 | 2024-03-07 | 株式会社プロテリアル | Fe-Co系合金棒材の製造方法およびFe-Co系合金棒材 |
| JP7747224B2 (ja) | 2022-08-31 | 2025-10-01 | 株式会社プロテリアル | Fe-Co系合金棒材の製造方法およびFe-Co系合金棒材 |
| EP4582565A4 (en) * | 2022-08-31 | 2025-12-31 | Proterial Ltd | PROCESS FOR PRODUCING AN FE-CO-BASED ALLOY ROD AND AN FE-CO-BASED ALLOY ROD |
| WO2024048788A1 (ja) | 2022-09-02 | 2024-03-07 | 株式会社プロテリアル | Fe-Co系合金棒材の製造方法 |
| EP4582566A4 (en) * | 2022-09-02 | 2025-12-31 | Proterial Ltd | PROCESS FOR PRODUCING AN FE-CO ALLOY ROD |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115279926B (zh) | 2024-09-10 |
| US20230349028A1 (en) | 2023-11-02 |
| JP7746984B2 (ja) | 2025-10-01 |
| CN115279926A (zh) | 2022-11-01 |
| US20260098325A1 (en) | 2026-04-09 |
| US12522898B2 (en) | 2026-01-13 |
| JPWO2021182518A1 (ja) | 2021-09-16 |
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