MX2021010285A - Metodo de fabricacion de laminas de acero para prensado en frio y metodo de fabricacion de componentes de prensado. - Google Patents
Metodo de fabricacion de laminas de acero para prensado en frio y metodo de fabricacion de componentes de prensado.Info
- Publication number
- MX2021010285A MX2021010285A MX2021010285A MX2021010285A MX2021010285A MX 2021010285 A MX2021010285 A MX 2021010285A MX 2021010285 A MX2021010285 A MX 2021010285A MX 2021010285 A MX2021010285 A MX 2021010285A MX 2021010285 A MX2021010285 A MX 2021010285A
- Authority
- MX
- Mexico
- Prior art keywords
- steel sheet
- press
- manufacturing
- cold press
- heating
- Prior art date
Links
Classifications
-
- 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
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
-
- 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
- C21D11/00—Process control or regulation for heat treatments
-
- 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
-
- 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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
-
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0405—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
-
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0494—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a localised treatment
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/52—Methods of heating with flames
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/009—Pearlite
-
- 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
- C21D2221/00—Treating localised areas of an article
- C21D2221/02—Edge parts
-
- 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
- C21D2261/00—Machining or cutting being involved
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0062—Crack or flaws
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Punching Or Piercing (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Se proporciona un método que mejora la formabilidad de la brida de estiramiento de una lámina de acero mediante un tratamiento individual que combina con un material de la lámina de acero sin realizar un tratamiento térmico en una matriz. Este método es un método para fabricar una lámina de acero para prensado en frío, y la lámina de acero se fabrica calentando un borde de la lámina de acero a una temperatura dentro de un rango de temperatura de calentamiento preestablecido de acuerdo con una microestructura de la lámina de acero, por ejemplo, un temperatura dentro de un rango de temperatura de calentamiento de 500°C o más y 700°C o menos en el caso de una lámina de acero cuya microestructura principal está compuesta por una sola fase de martensita, y enfriando la lámina de acero. Se determina una región, dentro de un borde de la lámina de acero sometida a cizallamiento en una etapa de cizallamiento, donde se estima que es probable que ocurra una fisura en la brida de estiramiento cuando se forma un componente de prensado mediante prensado en frío, y un sitio para ser calentado y enfriado se establece dentro de la región. Al prensar la lámina de acero fabricada, se fabrica un componente de prensado objetivo.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019034755 | 2019-02-27 | ||
JP2019034756 | 2019-02-27 | ||
JP2019034757 | 2019-02-27 | ||
JP2019118513 | 2019-06-26 | ||
JP2019118512 | 2019-06-26 | ||
JP2019118514 | 2019-06-26 | ||
PCT/JP2020/007513 WO2020175486A1 (ja) | 2019-02-27 | 2020-02-25 | 冷間プレス用の鋼板の製造方法、及びプレス部品の製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2021010285A true MX2021010285A (es) | 2022-01-04 |
Family
ID=72239948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2021010285A MX2021010285A (es) | 2019-02-27 | 2020-02-25 | Metodo de fabricacion de laminas de acero para prensado en frio y metodo de fabricacion de componentes de prensado. |
Country Status (7)
Country | Link |
---|---|
US (1) | US20220049324A1 (es) |
EP (1) | EP3932579A4 (es) |
JP (1) | JP7276428B2 (es) |
KR (1) | KR102612142B1 (es) |
CN (1) | CN113474100B (es) |
MX (1) | MX2021010285A (es) |
WO (1) | WO2020175486A1 (es) |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09143554A (ja) | 1995-11-29 | 1997-06-03 | Sumitomo Metal Ind Ltd | 局部軟化鋼板の製造方法 |
JP2001323318A (ja) * | 2000-05-15 | 2001-11-22 | High Frequency Heattreat Co Ltd | 板部材の成形方法 |
JP3762861B2 (ja) | 2000-10-05 | 2006-04-05 | 新日本製鐵株式会社 | 鋼板プレス成形体の製造方法 |
US7951580B2 (en) * | 2004-04-21 | 2011-05-31 | The Regents Of The University Of California | Automated, programmable, high throughput, multiplexed assay system for cellular and biological assays |
JP4814851B2 (ja) | 2007-09-07 | 2011-11-16 | 新日本製鐵株式会社 | 薄板プレス成形シミュレーションにおける伸びフランジ割れの推定方法 |
JP5412746B2 (ja) * | 2008-04-22 | 2014-02-12 | 新日鐵住金株式会社 | 溶接性と伸びフランジ性の良好な高強度鋼板 |
JP5333298B2 (ja) * | 2010-03-09 | 2013-11-06 | Jfeスチール株式会社 | 高強度鋼板の製造方法 |
CA2843186C (en) * | 2011-07-27 | 2017-04-18 | Nippon Steel & Sumitomo Metal Corporation | High-strength cold-rolled steel sheet having excellent stretch flangeability and precision punchability and manufacturing method thereof |
JP5902939B2 (ja) | 2011-12-13 | 2016-04-13 | 株式会社神戸製鋼所 | 熱間プレス成形品の製造方法 |
US20160067760A1 (en) * | 2013-05-09 | 2016-03-10 | Nippon Steel & Sumitomo Metal Corporation | Surface layer grain refining hot-shearing method and workpiece obtained by surface layer grain refining hot-shearing |
US10670515B2 (en) * | 2013-05-20 | 2020-06-02 | Magna International Inc. | Detecting edge cracks |
DE102014016614A1 (de) * | 2014-10-31 | 2016-05-04 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung eines Bauteils durch Umformen einer Platine aus Stahl |
DE102016121902A1 (de) * | 2016-11-15 | 2018-05-17 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung von Fahrwerksteilen aus mikrolegiertem Stahl mit verbesserter Kaltumformbarkeit |
DE102017103729A1 (de) * | 2017-02-23 | 2018-08-23 | Salzgitter Flachstahl Gmbh | Verfahren zur Herstellung eines Bauteils durch Weiterformen einer vorgeformten Kontur |
JP6933043B2 (ja) | 2017-08-15 | 2021-09-08 | 王子ホールディングス株式会社 | 包装体 |
JP2019034757A (ja) | 2017-08-15 | 2019-03-07 | 東京食品機械株式会社 | 包装容器 |
JP2019034756A (ja) | 2017-08-15 | 2019-03-07 | 東京食品機械株式会社 | 深絞り包装容器 |
JP6958214B2 (ja) * | 2017-10-16 | 2021-11-02 | 日本製鉄株式会社 | 鋼加工部品の製造方法 |
KR102340442B1 (ko) * | 2017-12-25 | 2021-12-16 | 제이에프이 스틸 가부시키가이샤 | 프레스 성형품의 제조 방법 |
JP2019111567A (ja) * | 2017-12-25 | 2019-07-11 | Jfeスチール株式会社 | プレス成形品の製造方法 |
JP7087384B2 (ja) | 2017-12-28 | 2022-06-21 | 株式会社三洋物産 | 遊技機 |
JP7077618B2 (ja) | 2017-12-28 | 2022-05-31 | 株式会社三洋物産 | 遊技機 |
JP2019118512A (ja) | 2017-12-28 | 2019-07-22 | 株式会社三洋物産 | 遊技機 |
-
2020
- 2020-02-25 US US17/433,921 patent/US20220049324A1/en active Pending
- 2020-02-25 WO PCT/JP2020/007513 patent/WO2020175486A1/ja unknown
- 2020-02-25 KR KR1020217026801A patent/KR102612142B1/ko active IP Right Grant
- 2020-02-25 CN CN202080016401.XA patent/CN113474100B/zh active Active
- 2020-02-25 MX MX2021010285A patent/MX2021010285A/es unknown
- 2020-02-25 EP EP20763410.6A patent/EP3932579A4/en active Pending
- 2020-02-25 JP JP2021502279A patent/JP7276428B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
JPWO2020175486A1 (ja) | 2021-12-23 |
KR20210118139A (ko) | 2021-09-29 |
WO2020175486A1 (ja) | 2020-09-03 |
CN113474100A (zh) | 2021-10-01 |
EP3932579A4 (en) | 2022-05-11 |
KR102612142B1 (ko) | 2023-12-08 |
EP3932579A1 (en) | 2022-01-05 |
CN113474100B (zh) | 2023-06-16 |
JP7276428B2 (ja) | 2023-05-18 |
US20220049324A1 (en) | 2022-02-17 |
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