JPWO2021014804A1 - 品質予測モデル生成方法、品質予測モデル、品質予測方法、金属材料の製造方法、品質予測モデル生成装置および品質予測装置 - Google Patents
品質予測モデル生成方法、品質予測モデル、品質予測方法、金属材料の製造方法、品質予測モデル生成装置および品質予測装置 Download PDFInfo
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Abstract
Description
11 製造実績収集部
12 製造実績編集部
13 先尾端入替実績収集部
14 表裏面入替実績収集部
15 切断実績収集部
16 一貫工程実績編集部
17 実績データベース
18 モデル生成部
19 予測部
Claims (11)
- 一つまたは複数の工程を経て製造される金属材料の品質予測モデル生成方法であって、
各工程の製造条件を、予め定めた前記金属材料の所定範囲ごとに収集する第一の収集ステップと、
前記各工程を経て製造される前記金属材料の品質を、前記所定範囲ごとに評価して収集する第二の収集ステップと、
前記各工程の製造条件と、この製造条件の下で製造される前記金属材料の品質とを、前記所定範囲ごとに関連付けて保存する保存ステップと、
保存した前記各工程における前記所定範囲ごとの製造条件から、前記金属材料の前記所定範囲ごとの品質を予測する品質予測モデルを生成するモデル生成ステップと、
を含む品質予測モデル生成方法。 - 前記所定範囲は、前記各工程における搬送方向に応じた前記金属材料の移動距離に基づいて決定される請求項1に記載の品質予測モデル生成方法。
- 前記保存ステップの前に、前記各工程における前記金属材料の先尾端の入れ替えの有無と、前記各工程における前記金属材料の表裏面の入れ替えの有無と、前記各工程における前記金属材料の切断位置と、の少なくとも一以上を収集する第三の収集ステップを含み、
前記保存ステップは、前記各工程における前記金属材料の先尾端の入れ替えの有無、表裏面の入れ替えの有無および切断位置の少なくとも一以上を考慮して前記所定範囲を特定し、前記各工程の製造条件と、この製造条件の下で製造される前記金属材料の品質とを、前記所定範囲ごとに関連付けて保存する請求項1または請求項2に記載の品質予測モデル生成方法。 - 前記各工程を経ることにより前記金属材料の形状が変形する場合、
前記保存ステップは、前記金属材料の先端からの体積を評価して前記所定範囲を特定し、前記各工程の製造条件と、この製造条件の下で製造される前記金属材料の品質とを、前記所定範囲ごとに関連付けて保存する請求項1または請求項2に記載の品質予測モデル生成方法。 - 前記モデル生成ステップは、線形回帰、局所回帰、主成分回帰、PLS回帰、ニューラルネットワーク、回帰木、ランダムフォレスト、XGBoostを含む機械学習を用いて前記品質予測モデルを生成する請求項1または請求項2に記載の品質予測モデル生成方法。
- 請求項1から請求項5のいずれか一項に記載された品質予測モデル生成方法によって生成された品質予測モデル。
- 請求項1から請求項5のいずれか一項に記載された品質予測モデル生成方法によって生成された品質予測モデルを用いて、任意の製造条件の下で製造される金属材料の品質を所定範囲ごとに予測する品質予測方法。
- 製造途中で確定した製造条件を固定し、請求項7に記載された品質予測方法によって、前記固定した製造条件の下で製造される金属材料の品質を所定範囲ごとに予測し、その予測結果に基づいて、その後の工程の製造条件を変更する金属材料の製造方法。
- 前記製造条件の変更は、製造される金属材料の全長に亘り含まれる全ての前記所定範囲ごとの品質が、予め定められた管理範囲内に入るように変更される請求項8に記載の金属材料の製造方法。
- 一つまたは複数の工程を経て製造される金属材料の品質予測モデル生成装置であって、
各工程の製造条件を、予め定めた前記金属材料の所定範囲ごとに収集する手段と、
前記各工程を経て製造される前記金属材料の品質を、前記所定範囲ごとに評価して収集する手段と、
前記各工程の製造条件と、この製造条件の下で製造される前記金属材料の品質とを、前記所定範囲ごとに関連付けて保存する手段と、
保存した前記各工程における前記所定範囲ごとの製造条件から、前記金属材料の前記所定範囲ごとの品質を予測する品質予測モデルを生成する手段と、
を備える品質予測モデル生成装置。 - 請求項10に記載された品質予測モデル生成装置によって生成された品質予測モデルを用いて、任意の製造条件の下で製造される金属材料の品質を所定範囲ごとに予測する品質予測装置。
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JP4474847B2 (ja) | 2003-05-28 | 2010-06-09 | Jfeスチール株式会社 | 結果予測装置 |
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JP2019074969A (ja) * | 2017-10-17 | 2019-05-16 | 新日鐵住金株式会社 | 品質予測装置及び品質予測方法 |
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TW202113521A (zh) | 2021-04-01 |
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CN114144738A (zh) | 2022-03-04 |
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