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WELDED PART INSPECTION METHOD BETWEEN STEEL PLATE, WELDED PART INSPECTION APPARATUS BETWEEN STEEL PLATE AND WELDING APPARATUS OF STEEL PLATE
WELDED PART INSPECTION METHOD BETWEEN STEEL PLATE, WELDED PART INSPECTION APPARATUS BETWEEN STEEL PLATE AND WELDING APPARATUS OF STEEL PLATE
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机译：钢板之间的焊接部检查方法，钢板与钢板的焊接部之间的焊接部检查装置
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摘要
PROBLEM TO BE SOLVED: To provide a welded part inspection method between steel plates, a welded part inspection apparatus between the steel plates and a welding apparatus of the steel plates in which the welded part can be inspected faster.;SOLUTION: A pair of electrodes 11a, 11b is provided on the surface of 2-steel plates 1a, 1b in an electrically connectable manner, respectively. Electric potential measuring means 12 is configured so as to measure an electric potential difference of respective steel plates 1a, 1b where the electromotive force with the temperature change in the welding is reflected by respective electrode 11a, 11b. Relationship evaluation means 25 is configured to previously find and store the relationship between a feature parameter for featuring a change of the electric potential difference corresponding to the electromotive change with the temperature change in the welding and a contact size between the respective steel plate 1a,1b by the measurement. Contact size estimation means 26 is configured to find the feature parameter from the change of the electric potential difference measured with the electric potential measuring means 12 and estimate the contact size between respective steel plates 1a, 1b based on the relationship stored by the relationship evaluation means 25.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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