Abstract: A microstructural feature and material property monitoring device for a metallic material that can easily adjust relative position between an irradiation position of laser beams applied to the metallic material to propagate pulsed ultrasonic waves in the metallic material and detection position of a laser interferometer, and therefore can accurately monitor the microstructural feature and material property of the metallic material. The device relatively moves the irradiation position of the laser beams generated by a laser oscillator and the detection position of the laser interferometer. The irradiation position of the laser beams generated from a laser oscillator and the detection position of the laser interferometer are controlled to be aligned with a relative position according to the microstructural feature and material property of the metallic material based on the time from the transmission of the pulsed ultrasonic waves to the detection by the laser interferometer.

Abstract: A process line control apparatus which controls a process line including an annealing furnace (3) including a heating process apparatus executing a heating process and a cooling process apparatus executing a cooling process, the heating and cooling processes being continuously executed on a steel material, the apparatus having feed forward control means (112, 113) for measuring quality of the steel material by a material quality measuring apparatus (6) installed in an inlet stage (1) preceding the heating process in the annealing furnace (3), and on the basis of measurement results, determining modifications for respective temperature set values set by temperature setting means (111) for the heating and cooling apparatuses in the annealing furnace (3), and feedback control means (114, 115) for measuring the quality of the steel material by a material quality measuring apparatus (7) installed in an outlet stage (5) succeeding the cooling process in the annealing furnace (3), and on the basis of measurement res

Abstract: A microstructural feature and material property monitoring device for a metallic material that can easily adjust relative position between an irradiation position of laser beams applied to the metallic material to propagate pulsed ultrasonic waves in the metallic material and detection position of a laser interferometer, and therefore can accurately monitor the microstructural feature and material property of the metallic material. The device relatively moves the irradiation position of the laser beams generated by a laser oscillator and the detection position of the laser interferometer. The irradiation position of the laser beams generated from a laser oscillator and the detection position of the laser interferometer are controlled to be aligned with a relative position according to the microstructural feature and material property of the metallic material based on the time from the transmission of the pulsed ultrasonic waves to the detection by the laser interferometer.

Abstract: This invention matches the material quality of a product to target data, even when a materials quality model is insufficient in prediction accuracy. Heating a metallic material, rolling, forging, or leveling the metallic material, and cooling the metallic material are each conducted at least once. Prior to manufacture of a metallic product of a desired size and shape, qualitative data of the metallic material are measured at a position by a materials quality sensor in a manufacturing line, and modifications based on measured data are made to heating, processing, or cooling conditions in at least one of the steps, upstream of the materials measured data sensor so that the quality of the metallic material at the measuring position agrees with target data.

Abstract: The invention matches the material quality of a product to target data, even when a materials quality model is insufficient in prediction accuracy. Heating a metallic material, rolling, forging, or leveling the metallic material, and cooling the metallic material are each conducted at least once. Prior to manufacture of a metallic product of a desired size and shape, qualitative data of the metallic material are measured at a position by materials, quality sensor in a manufacturing line, and modifications based on measured data are made to heating, processing, or cooling conditions in at least one of the steps, upstream of the materials measured data sensor so that the quality of the metallic material at the measuring position agrees with target data.

Abstract: A mode of the present invention includes a transmitter (12) for shooting exciting laser light to an object of measurement (M) to excite ultrasonic waves in the object of measurement (M), a receiver (14) for shooting probing laser light to the object of measurement (M) to receive reflected light of probing laser light from the object of measurement (M) for detection of ultrasonic waves, a light blocking structure (16) having a first opening (16a) allowing the object of measurement (M) to pass therethrough and operable to accommodate the object of measurement (M), and a cover (18) operable to cover and open the first opening (16a).

Abstract: The invention matches the material quality of a product to target data, even when a materials quality model is insufficient in prediction accuracy. Heating a metallic material, rolling, forging, or leveling the metallic material, and cooling the metallic material are each conducted at least once. Prior to manufacture of a metallic product of a desired size and shape, qualitative data of the metallic material are measured at a position by materials, quality sensor in a manufacturing line, and modifications based on measured data are made to heating, processing, or cooling conditions in at least one of the steps, upstream of the materials measured data sensor so that the quality of the metallic material at the measuring position agrees with target data.

Abstract: A learning control apparatus in a reversing rolling mill is disclosed. The learning control apparatus adds a learning calculation means that performs learning calculations based on actual values in the previous pass so as to be able to cope with the pass schedule composition peculiar to the reversing rolling mills. Furthermore, by storing learning calculation values of model errors that depend on materials and product dimensions in tables prepared group division by group division that can assimilate intrinsic model errors, the learning control apparatus of the present invention makes possible stable operation and improves accuracy of the product.

Abstract: Inter-rolling stand cooling devices are provided.