MATERIAL QUALITY PREDICTION METHOD

To provide a material quality prediction method capable of easily predicting mechanical characteristics of a steel plate manufactured through a hot rolling process.SOLUTION: The material quality prediction method for predicting mechanical characteristics of a steel plate manufactured through a hot r...

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Hauptverfasser: TAMAKI KATSUHISA, AKASHI TORU, HIGO TSUYOSHI
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creator TAMAKI KATSUHISA
AKASHI TORU
HIGO TSUYOSHI
description To provide a material quality prediction method capable of easily predicting mechanical characteristics of a steel plate manufactured through a hot rolling process.SOLUTION: The material quality prediction method for predicting mechanical characteristics of a steel plate manufactured through a hot rolling process acquires, as temperature history, a plate temperature over the full length and the full width of a coil during a temperature acquisition period from prescribed time at the completion time of coil winding and after to the lapse of prescribed time for a plurality of steel plates for each steel type, acquires a correlation expression between mechanical characteristics and a parameter on the basis of the mechanical characteristics measured at a plurality of positions of the manufactured coil and the parameter based on the plate temperature at a position acquired from the acquired temperature history, acquires a plate temperature over the full length and the full width of the coil during the temperature acquisition period from prescribed time for a steel plate to be rolled, calculates a parameter at an optional position of the coil, and acquires mechanical characteristics from a correlation expression of a corresponding steel type.SELECTED DRAWING: Figure 1 【課題】熱間圧延プロセスにおいて製造される鋼板の機械特性を簡便に予測することが可能な材質予測方法を提供する。【解決手段】熱間圧延プロセスにおいて製造される高強度鋼の鋼板の機械特性を予測する材質予測方法であって、予め鋼種毎に、複数の鋼板について、コイル巻き取り完了以降の所定の時刻から所定の時間が経過した時刻までの温度取得期間におけるコイルの全長及び全幅にわたる板温度を温度履歴として取得して、製造したコイルの複数の位置において測定した機械特性と、取得した温度履歴から得られる位置での板温度に基づくパラメータとに基づいて、機械特性とパラメータとの相関式を求めておき、圧延対象の鋼板について、温度取得期間におけるコイルの全長及び全幅にわたる板温度を取得して、コイルの任意の位置でのパラメータを算出し、対応する鋼種の相関式から機械特性を求める。【選択図】図1
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language eng ; jpn
recordid cdi_epo_espacenet_JP2024009583A
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subjects CHEMISTRY
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
MEASURING
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
PERFORMING OPERATIONS
PHYSICS
PUNCHING METAL
ROLLING OF METAL
TESTING
TRANSPORTING
title MATERIAL QUALITY PREDICTION METHOD
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