JP6319465B2 - 無方向性電磁鋼板およびその製造方法 - Google Patents
無方向性電磁鋼板およびその製造方法 Download PDFInfo
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- 229910000565 Non-oriented electrical steel Inorganic materials 0.000 title claims description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000005098 hot rolling Methods 0.000 claims description 26
- 230000009466 transformation Effects 0.000 claims description 25
- 239000013078 crystal Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 11
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 49
- 229910000831 Steel Inorganic materials 0.000 description 32
- 239000010959 steel Substances 0.000 description 32
- 230000004907 flux Effects 0.000 description 25
- 229910052742 iron Inorganic materials 0.000 description 23
- 238000000137 annealing Methods 0.000 description 16
- 238000005097 cold rolling Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000004804 winding Methods 0.000 description 6
- 238000004080 punching Methods 0.000 description 5
- 239000011162 core material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001224 Grain-oriented electrical steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- 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
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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 by deformation combined with, or followed by, heat treatment
- C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
-
- 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 by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
-
- 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 by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- C21D8/1222—Hot rolling
-
- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- 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
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- H01F1/14775—Fe-Si based alloys in the form of sheets
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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
- H01F1/16—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 in the form of sheets
-
- 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 by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- C21D8/1233—Cold rolling
-
- 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 by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1272—Final recrystallisation annealing
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Description
C:0.0050%以下、
Si:1.50%以上4.00%以下、
Al:0.500%以下、
Mn:0.10%以上5.00%以下、
S:0.0200%以下、
P:0.200%以下、
N:0.0050%以下および
O:0.0200%以下
含有し、残部はFeおよび不可避不純物である成分組成を有し、Ar3変態点が700℃以上、結晶粒径が80μm以上200μm以下、ビッカース硬度が140HV以上230HV以下であることを特徴とする無方向性電磁鋼板。
質量%で、
Ge:0.0500%以下
であることを特徴とする、上記1に記載の無方向性電磁鋼板。
質量%で、
Ti:0.0030%以下、
Nb:0.0030%以下、
V:0.0030%以下および
Zr:0.0020%以下
の少なくともいずれかであることを特徴とする、上記1または2に記載の無方向性電磁鋼板。
最初に、磁気特性に及ぼす二相域の影響について調査するため、表1の成分組成を含有する鋼Aから鋼Cを実験室にて溶製し、熱間圧延を行った。熱間圧延は7パスで行い、熱延の初パス(F1)の入り側温度は1030℃、熱延の最終パス(F7)入り側温度は910℃とした。
Cは磁気時効防止の観点から0.0050%以下とする。一方、Cは磁束密度を向上させる効果があるため0.0010%以上が好ましい。
Siは鋼板の固有抵抗を上げるために有効な元素であるため1.50%以上とする。一方、4.00%を超えると飽和磁束密度の低下に伴い磁束密度が低下するため上限は4.00%とする。好ましくは、3.00%以下とする。これは3.00%を超えると二相域とするために多量のMnを添加する必要があり、いたずらにコストアップとなるためである。
Alはγ域閉鎖型の元素であるため少ないほうが好ましく、0.500%以下、好ましくは0.020%以下、より好ましくは0.002%以下とする。
Mnはγ域を拡大するために効果的な元素であるため、下限を0.10%とする。一方、5.00%超になると磁束密度を低下させるので上限を5.00%とする。好ましくは、3.00%以下とする。これは3.00%を超えるといたずらにコストアップとなるためである。
Sは0.0200%を超えるとMnSの析出により鉄損が増大するため、上限を0.0200%とする。
Pは0.200%を超えて添加すると鋼板が硬くなるため0.200%以下、より好ましくは0.100%以下とする。さらに好ましくは0.010〜0.050%とする。これはPが表面偏析して窒化を抑制する効果があるためである。
Nは、含有量が多い場合にはAlNの析出量が多くなり、鉄損を増大させるため0.0050%以下とする。
Oは、含有量が多い場合には酸化物が多くなり、鉄損を増大させるため0.0200%以下とする。
Geは半導体に使用されることからスクラップに混入しやすくなっている元素であるが、0.0500%を超えると熱延後の再結晶が抑制され、磁束密度が低下するおそれがあるため上限を0.0500%とする。
Tiは、含有量が多い場合にはTiNの析出量が多くなり、鉄損を増大させるおそれがあるため0.0030%以下とする。
Nbは、含有量が多い場合にはNbCの析出量が多くなり、鉄損を増大させるおそれがあるため0.0030%以下とする。
Vは、含有量が多い場合にはVN、VCの析出量が多くなり、鉄損を増大させるおそれがあるため0.0030%以下とする。
Zrは、含有量が多い場合にはZrNの析出量が多くなり、鉄損を増大させるおそれがあるため0.0020%以下とする。
転炉で吹練した溶鋼を脱ガス処理し、表3の成分に鋳造後、1140℃×1hのスラブ加熱を行い、板厚2.0mmまで熱間圧延を行った。熱間の仕上圧延は7パスで行い、初パスおよび最終パスの入り側板温は表3に示す温度とし、巻き取り温度は670℃とした。その後、酸洗を行い、板厚0.5mmまで冷間圧延を行い、20%H2−80%N2雰囲気で表3に示す条件において仕上焼鈍を行い、磁気特性(W15/50,B50)および硬度(HV)を評価した。磁気測定は圧延方向および圧延直角方向よりエプスタインサンプルを切り出し、エプスタイン測定を行った。ビッカース硬度はJIS Z2244に準拠し、鋼板断面に500gのダイヤモンド圧子を押し込むことにより測定した。結晶粒径は断面を研磨し、ナイタールにてエッチングした後、JIS G0551に準拠して測定した。
2 Vカシメ
Claims (4)
- 質量%で、
C:0.0050%以下、
Si:1.50%以上4.00%以下、
Al:0.500%以下、
Mn:0.10%以上5.00%以下、
S:0.0200%以下、
P:0.200%以下、
N:0.0050%以下および
O:0.0200%以下
を含有し、残部はFeおよび不可避不純物である成分組成を有し、Ar3変態点が700℃以上1000℃以下、結晶粒径が80μm以上200μm以下、ビッカース硬度が140HV以上230HV以下であることを特徴とする無方向性電磁鋼板。 - 前記成分組成は、さらに、
質量%で、
Ge:0.0500%以下
を含有することを特徴とする、請求項1に記載の無方向性電磁鋼板。 - 前記成分組成は、さらに、
質量%で、
Ti:0.0030%以下、
Nb:0.0030%以下、
V:0.0030%以下および
Zr:0.0020%以下
の少なくともいずれかを含有することを特徴とする、請求項1または2に記載の無方向性電磁鋼板。 - 請求項1から3のいずれかに記載の無方向性電磁鋼板を製造する方法であって、γ相からα相の二相域において少なくとも1パス以上熱間圧延を行うことを特徴とする無方向性電磁鋼板の製造方法。
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US (1) | US20190024205A9 (ja) |
EP (1) | EP3358027B1 (ja) |
JP (1) | JP6319465B2 (ja) |
KR (2) | KR20200020013A (ja) |
CN (1) | CN107923019B (ja) |
CA (1) | CA2993594C (ja) |
MX (1) | MX2018003731A (ja) |
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KR20220041205A (ko) | 2019-11-15 | 2022-03-31 | 닛폰세이테츠 가부시키가이샤 | 무방향성 전자 강판의 제조 방법 |
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JP6665794B2 (ja) * | 2017-01-17 | 2020-03-13 | Jfeスチール株式会社 | 無方向性電磁鋼板およびその製造方法 |
JP6891682B2 (ja) * | 2017-07-13 | 2021-06-18 | 日本製鉄株式会社 | 電磁鋼板及びその製造方法、ロータ用モータコア及びその製造方法、ステータ用モータコア及びその製造方法、並びに、モータコアの製造方法 |
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KR20220041205A (ko) | 2019-11-15 | 2022-03-31 | 닛폰세이테츠 가부시키가이샤 | 무방향성 전자 강판의 제조 방법 |
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TW201713783A (zh) | 2017-04-16 |
US20190024205A9 (en) | 2019-01-24 |
KR20180034573A (ko) | 2018-04-04 |
TWI615483B (zh) | 2018-02-21 |
KR20200020013A (ko) | 2020-02-25 |
EP3358027A4 (en) | 2018-08-08 |
CN107923019B (zh) | 2019-10-18 |
RU2694299C1 (ru) | 2019-07-11 |
WO2017056383A1 (ja) | 2017-04-06 |
EP3358027B1 (en) | 2019-11-06 |
CA2993594A1 (en) | 2017-04-06 |
CA2993594C (en) | 2020-12-22 |
MX2018003731A (es) | 2018-06-18 |
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