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1. 发明专利

JPH058779B2 失效
公开(公告)号：JPH058779B2
公开(公告)日：1993-02-03
申请号：JP12887984
申请日：1984-06-22
申请人： NIPPON STEEL CORP
发明人： KAWAMURA KOJI , ISHIMATSU AKIRA , SUGITA KOICHI , NAKAME MASATAKA
IPC分类号： G01N29/04 , G01N29/265

2. 发明专利

JPH0373791A CONTROLLER FOR QUANTITY OF SUSPENDED STEEL PLATE ON LIFTING MAGNET TYPE CRANE 失效
公开(公告)号：JPH0373791A
公开(公告)日：1991-03-28
申请号：JP20742989
申请日：1989-08-10
申请人： NIPPON STEEL CORP
发明人： YAMANODERA TAKASHI , FUKUTANI KAZUHIKO , NAKAME MASATAKA
IPC分类号： B66C1/08 , B66C1/00 , B66C13/22 , H01F7/18
摘要： PURPOSE:To correctly suspended a prescribed number of steel plates by installing a processing means which cuts off the supply of the exciting current after suspended objective articles are suspended and restarts the supply of the exciting current when detection value of an electric current detecting means lowers to the second electric current value which is smaller than the first electric current value. CONSTITUTION:After n+1 pieces of steel plates are suspended by the flow of the excitation current having the first electric current value, the excitation current is cut off, and after the electric current which flows in an exciting coil 52 reduces to the second electric current value, the flow of the exciting current is restarted by a processing means RCU. The min. value of the magnetic attractive force which acts between the exciting coil 52 and a steel plate 71 is determined according to the second electric current value. In other words, if the magnetic attractive force which acts between the n-th steel plate corresponding to the second electric current value and the n+1-th steel plate is set less than the downward force w(n+1) which acts onto the n+1-th steel plate, the n+1-th steel plate can be dropped, and a prescribed number (n) of steel plates can be suspended correctly.

3. 发明专利

JPH02295889A LIFTING MAGNET CRANE DEVICE 失效
公开(公告)号：JPH02295889A
公开(公告)日：1990-12-06
申请号：JP11823189
申请日：1989-05-11
申请人： NIPPON STEEL CORP
发明人： YAMANODERA TAKASHI , FUKUTANI KAZUHIKO , NAKAME MASATAKA
IPC分类号： B66C1/08 , B66C1/00 , B66C13/16 , B66C13/46 , B66C13/48
摘要： PURPOSE:To facilitate automatization of control of a number of steel plates to be hung by providing an electromagnet having a magnetic material core and an excitation coil, magnetic flux detecting means for detecting magnetic flux passing one part of the magnetic material core, current supply means, means for vertically moving the electromagnet and a processing means. CONSTITUTION:A mutual relation of previously obtained excitation current of an excitation coil 52 and magnetic flux to pass through one part of a magnetic material core 51 by a search coil 53 (magnetic flux detecting means) to the total thickness of steel plates magnetically attracted by a lifting magnet 5 (electromagnet), is stored in a microcomputer CPU (processing means). Supply of the excitation current by a current supply unit REG (current supply means) and upper driving of the magnet 5 by a vertically moving means are provided, and in such a condition that one to plural sheets of steel plates are hung by the magnet 5, the total thickness of the steel plates, magnetically attracted to the magnet 5, is detected from the excitation current, supplied by the current supply unit REG and from the magnetic flux detected by the search coil 53.

4. 发明专利

JPS5293389A ULTRASONIC FLAW DETECTION FOR CORNER FLAW 失效
公开(公告)号：JPS5293389A
公开(公告)日：1977-08-05
申请号：JP930576
申请日：1976-02-02
申请人： NIPPON STEEL CORP , MITSUBISHI ELECTRIC CORP
发明人： TOOYAMA ICHIROU , OOKUBO NAOTAKE , OOTA MITSUHIRO , NAKAME MASATAKA , MATSUYAMA HIROSHI , MARUTA SHINICHI , TAKAHASHI KUNIO
IPC分类号： G01N29/04
摘要： PURPOSE:To facilitate identification of the flaw by lowering a corner reflection level even when the corner of a material for flaw detection shows a comparatively sharper edge as a flaw detection direction is set so that it may not cross the corner of a material for flaw detection or the ultrasonic frequency is relatively low, etc.

5. 发明专利

JPH02295890A LIFTING MAGNET CRANE DEVICE 失效
公开(公告)号：JPH02295890A
公开(公告)日：1990-12-06
申请号：JP11823289
申请日：1989-05-11
申请人： NIPPON STEEL CORP
发明人： YAMANODERA TAKASHI , FUKUTANI KAZUHIKO , NAKAME MASATAKA
IPC分类号： B66C1/08 , B66C1/00 , B66C13/48
摘要： PURPOSE:To automatically control a quantity of hung steel plates by providing an electromagnet having a magnetic material core and an excitation coil, current supply means, means for vertically moving the electromagnet and a control means. CONSTITUTION:Supply of an excitation current, required for hanging up steel plates of quantity larger by at least one sheet than the assigned quantity, is indicated to a current supply means by a control means, and supplying the excitation current by the current supply means while upper moving a lifting magnet 5 (electromagnet) by an arm 3 (vertically moving means), an instantaneous cut of the excitation current is commanded to the current supply means in a condition that a plurality of sheets of steel plates are hung up by the magnet 5. Thus, the steel plate, attracted in the lowermost position, is dropped down. That is, even in the case of hanging up the steel plates of a quantity larger than the assigned quantity, the quantity is adjusted to the assigned value, and a control of the hanging up quantity of the steel plates can be automatized.

6. 发明专利

JPS5917102A Measuring device of length of long-sized rolled material 失效
标题翻译：长尺寸滚动材料长度的测量装置
公开(公告)号：JPS5917102A
公开(公告)日：1984-01-28
申请号：JP12582182
申请日：1982-07-21
申请人： Nippon Steel Corp
发明人： OSADA JIYUNICHI , KUMADE SAKUHIKO , NAKAME MASATAKA
IPC分类号： G01B11/02
CPC分类号： G01B11/02
摘要： PURPOSE:To reduce the time for measuring length and to improve the accuracy in measurement by providing devices for cutting and positioning the preceding end of a long-sized rolled material, a carriage mounted with a television camera movable in parallel with the longitudinal direction of the long-sized rolled material, etc. CONSTITUTION:A measuring device for length has a long-sized steel plate 1 which is a measuring object, cutting and positioning devices 7, 8, 9, a carriage 3, etc. The device 7 is a gate type stand installed across the long-sized steel plate, and the device 8 is two units of beam projectors which project parallel beams having the space equal to the width of the product plate on the plate 1, is installed on the stand 7 and is so fixed as to be made movable in the transverse direction of the plate. The device is so constituted that the product length is displayed on a display device 12 for the position of the carriage by a detector 5 for the position of the carriage upon ending of positioning, and the product length is determined according to the length thereof. The time for measuring the length is reduced and the accuracy in measurement is improved by the above- mentioned constitution.
摘要翻译：目的：为了减少测量长度的时间并提供测量精度，提供用于切割和定位长尺寸轧制材料的前端的装置，安装有电视摄像机的滑架可平行于纵向方向移动长型轧制材料等。构成：长度测量装置具有作为测量对象的长尺寸钢板1，切割定位装置7,8,9，滑架3等。装置7是门型支架安装在长型钢板上，装置8是两个单元的投影仪，它们将具有与板1上的产品板宽度相等的平行梁投影到支架7上，并且是固定成能够在板的横向方向上移动。该装置被构造成使得产品长度在结束定位时通过用于托架位置的检测器5在显示装置12上显示，并且产品长度根据其长度确定。通过上述结构，缩短了测量长度的时间，提高了测量精度。

7. 发明专利

JPS5393085A ARRANGING METHOD FOR PROBES IN ULTRASONIC INSPECTION BY SURFACE WAVE METHOD 失效
公开(公告)号：JPS5393085A
公开(公告)日：1978-08-15
申请号：JP730277
申请日：1977-01-27
申请人： NIPPON STEEL CORP , MITSUBISHI ELECTRIC CORP
发明人： TOOYAMA ICHIROU , OOKUBO NAOTAKE , OOTA MITSUHIRO , KURIYAMA FUJIO , NINOMIYA TAKASHI , NAKAME MASATAKA , MATSUYAMA HIROSHI , KOUNO KATSUMI , TAKAHASHI KUNIO
IPC分类号： G01N29/04 , G01N29/28
摘要： PURPOSE:To contrive the reduction of number of probes and the improvement of the inspection efficiency, by making one unit a pair of surface wave ultrasonic probes whose directions of transmitting their surface waves mutually cross, and by arranging plural units on a straight line perpendicular to the traveling direction of the inspected object.

8. 发明专利

JPH01242333A DEVICE FOR CONTROLLING NUMBER OF STEEL PLATE OF SUSPENDING ELECTROMAGNETIC 失效
公开(公告)号：JPH01242333A
公开(公告)日：1989-09-27
申请号：JP6480888
申请日：1988-03-18
申请人： NIPPON STEEL CORP
发明人： YUI KATSUHIKO , HARAKAWA TETSUMI , NAKAME MASATAKA
IPC分类号： B65H3/16 , B66C1/00 , B66C1/08 , H01F7/20
摘要： PURPOSE:To prevent the fall of a steel plate caused by improper suspension by providing a current control means for controlling a current generated in an exciting coil to be equal to the product of a reference current and the ratio of a detected magnetic flux to a reference flux. CONSTITUTION:A suspending electromagnet 4 suspends a plurality of steel plates 1, 2, 3 and a power source device 26 applies voltage to an exciting coil 6 in the suspending electromagnet 4. By this current, a magnetic flux phi1 is generated between an iron core 5 and the steel plates 1, 2, 3. First, a reference current IA and a reference magnetic flux phi2 in the same steel type, the same plate thickness, and the same plate width is previously set for each suspending number of steel plates. Then, an exciting current is controlled to be equal to a value in which the reference current IA is multiplied by the ratio K of the actually measured flux phi1 to the reference flux phi2. Thereby, the suspending number of steel plate can be accurately controlled even when magnetic resistance is greatly varied due to possible minute unevenness on the contact face of the steel plate.

9. 发明专利

JPS618657A Ultrasonic flaw detecting method of steel sheet edge part 失效
标题翻译：钢板边缘超声波检测方法
公开(公告)号：JPS618657A
公开(公告)日：1986-01-16
申请号：JP12887984
申请日：1984-06-22
申请人： Nippon Steel Corp
发明人： KAWAMURA KOUJI , ISHIMATSU AKIRA , SUGITA KOUICHI , NAKAME MASATAKA
IPC分类号： G01N29/04 , G01N29/265
CPC分类号： G01N29/265 , G01N2291/0237 , G01N2291/044 , G01N2291/2632
摘要： PURPOSE:To reduce the region where flaw detection of a steel sheet edge part is not performed, by deflecting incident angles of left and right vibrators in divided type vertical probe, and transmitting ultrasonic beam to the edge part side. CONSTITUTION:A sound dividing surface 5 of the probe 2 is placed parallel to the steel sheet edge 8 and as near as possible to the steel sheet edge 8, and the probe 2 is scanned in a direction 9. Ultrasonic incident angles of a transmitting vibrator 3 and a detecting vibrator 3a are regulated to different angles respectively, and the beam propagating positions are deflected to the edge part 8 side. By reducing a nonsensible band 11 of the part 8, the region where flaw detection is not performed in the part 8 is reduced.
摘要翻译：目的：为了减少不进行钢板边缘部的缺陷检测的区域，通过使分割型的垂直探针中的左右振动体的入射角偏转，并将超声波束向边缘部侧发送。构成：将探头2的分割面5平行于钢板边缘8放置并尽可能靠近钢板边缘8，并且将探头2沿方向9扫描。发射振动器的超声入射角 3和检测振动器3a分别被调节到不同的角度，并且光束传播位置被偏转到边缘部分8侧。通过减少部分8中不可见的带11，减少了在部分8中没有进行缺陷检测的区域。

10. 发明专利

JPS5392186A SURFACE WAVE PROCESS ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPS5392186A
公开(公告)日：1978-08-12
申请号：JP637377
申请日：1977-01-25
申请人： NIPPON STEEL CORP , MITSUBISHI ELECTRIC CORP
发明人： TOOYAMA ICHIROU , OOKUBO NAOTAKE , OOTA MITSUHIRO , MAKINO HIDEYA , NAKAME MASATAKA , MATSUYAMA HIROSHI , KOUNO KATSUMI , SATOU HARUJI
IPC分类号： G01N29/44 , G01N29/04
摘要： PURPOSE:To estimate the flaws of the entire article to be detected by dividing the entire article into predetermined estimate areas, obtaining the number and length of the flaw per each area, and estimating the flaws per each area based on them.

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