To provide a rust prevention performance management system for managing rust prevention performance of an insulative coated film provided on a surface of a metal product, capable of accurately detecting a sign of abnormality of the rust prevention performance.SOLUTION: A rust prevention performance management system 100 is configured so that a metal product maker system 20 extracts a prescribed number of vehicle steel members for every production lot of a vehicle steel member 1, and applies a voltage between a surface of the insulative coated film and a steel plate 3 of the vehicle steel member, in a state of bringing a corrosion factor 5 into contact with the surface of the insulative coated film 4 of the vehicle steel member to measure a chronological change in current generated between them. A vehicle maker system 10 evaluates rust prevention performance of the insulative coated film for production lot, on the basis of position information indicating a position where measurement is executed on the vehicle steel member, and feature amounts including an inclination of a waveform of the current chronological change, the number of peaks, and a height of the peaks, then detects a sign of abnormality of the rust prevention performance on the basis of a shift of the rust prevention performance of the insulative coated film for each production lot, and then outputs a notification if the sign of the abnormality is detected.SELECTED DRAWING: Figure 4

    【課題】金属製品の表面に設けられた絶縁性塗膜の防錆性能を管理する防錆性能管理システムにおいて、防錆性能の異常の予兆を精度よく検出可能にする。【解決手段】防錆性能管理システム100においては、金属製品メーカーシステム20が、車両用鋼部材1の製造ロット毎に所定数の車両用鋼部材を抽出し、車両用鋼部材の絶縁性塗膜4の表面に腐食因子5を接触させた状態で絶縁性塗膜の表面と車両用鋼部材の鋼板3との間に電圧を印加することにより両者の間に生じる電流の経時的変化を測定し、車両メーカーシステム10が、車両用鋼部材において測定を行った位置を示す位置情報と、電流の経時的変化の波形の傾き、ピークの数及びピークの高さを含む特徴量とに基づき、製造ロット毎の絶縁性塗膜の防錆性能を評価し、製造ロット毎の絶縁性塗膜の防錆性能の推移に基づき、防錆性能の異常の予兆を検出し、異常の予兆が検出された場合に通知を出力する。【選択図】図4


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    Title :

    RUST PREVENTION PERFORMANCE MANAGEMENT SYSTEM


    Additional title:

    防錆性能管理システム


    Contributors:

    Publication date :

    2024-10-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B23K Löten , SOLDERING OR UNSOLDERING / B62D MOTOR VEHICLES , Motorfahrzeuge



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