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81. 发明专利

JPS5724846A Flaw detecting method for hot steel slab 失效
标题翻译：热钢板的FLAW检测方法
公开(公告)号：JPS5724846A
公开(公告)日：1982-02-09
申请号：JP10037580
申请日：1980-07-22
申请人： Nippon Steel Corp
发明人： YAMAMOTO HIROTOMO , IWAI KUNIO , NAKASHIMA KATSUYUKI , NAKAMURA YOSHIAKI , KAWASHIMA KATSUHIRO
IPC分类号： B22D11/16 , G01N27/90 , G01N29/04
CPC分类号： G01N27/9093
摘要： PURPOSE:To readily detect internal defects of a hot steel salb, by a method wherein a hot steel slab is rolled at less than 5% rolling reduction in the directions other than the longitudinal one, an ultrasonic wave is excited in the hot steel slab by means of an electromagnetic ultrasonic transmitter-receiver, and the wave transmitted or reflected thereby is received. CONSTITUTION:The surface of a steel slab is treated by means of a descaler DC, and surface defects and internal defects are detected by flaw detectors SD and ID respectively. The defective parts are removed in a shear (a), and the slab is divided into pieces having a length for rolling. The sectional configuration of the slab is detected before the surface defect detection and stored in a processing computer PSC, while the temperature of the slab is detected and processed directly before the internal defect detection and stored in the computer PSC. The position of the slab is followed by counting the pulses generated by a synchronizing pulse generator which generates a transfer synchronizing pulse at the rate of one pulse per prescribed length feed of the slab. The configuration data and temperature data are stored in the computer PSC, being made to correspond to the detection positions on the slab.
摘要翻译：目的：为了容易地检测热钢沙缸的内部缺陷，通过以下方法轧制热钢板，其方法是在不同于纵向方向的方向上以低于5％的轧制压下轧制，在热钢板中激发超声波电磁超声波发射器 - 接收器的装置，并且接收由其发射或反射的波。构成：钢板的表面通过除锈剂DC进行处理，分别由缺陷检测器SD和ID检测表面缺陷和内部缺陷。在剪切（a）中去除缺陷部分，并将板坯分成具有滚动长度的块。在表面缺陷检测之前检测板坯的截面结构，并存储在处理计算机PSC中，同时在内部缺陷检测之前直接检测和处理板坯的温度并存储在计算机PSC中。板坯的位置之后是对由同步脉冲发生器产生的脉冲进行计数，该同步脉冲发生器产生一个传输同步脉冲，每个脉冲的速度是每个规定的板坯长度进给。配置数据和温度数据存储在计算机PSC中，使其对应于板上的检测位置。

82. 发明专利

JPS5717360A METHOD FOR CONTINUOUS CASTING OF STEEL 失效
公开(公告)号：JPS5717360A
公开(公告)日：1982-01-29
申请号：JP9104380
申请日：1980-07-03
申请人： NIPPON STEEL CORP
发明人： TSUBAKIHARA OSAMU , OKADA HIROO , KAGAYA KOUJI , KAWASHIMA KATSUHIRO
IPC分类号： B21B1/00 , B22D11/20 , B22D11/22 , G01B17/02 , G01B17/06
摘要： PURPOSE:To prevent the occurrence of inner crack and over segregation, by obtaining a profile in the direction of width of ingots in yet nonsolidified area by using a noncontact type electromagnetic supersonic wave thickness meter and controlling the casting speed and width direction cooling pattern based on the difference between said profile and the beforehand set reference profile. CONSTITUTION:An ingot 2 came out from a mold 1 is drawn out by a pinch roll 11 and cut by a gas cutter 5 to obtain a slub 4. In this case, noncontact type electromagnetic supersonic wave thickness meters 6 and 6' are installed at locations which is near a crater end P of ingot, and the profile in the direction of width of yet nonsolidified area is obtained by scanning in the direction of width. The casting speed and/or cooling pattern in the width direction of ingot are controlled by operating the difference between the said profile and the reference profile S at a relational operating device 9. Moreover, the reference profile S is prepared for every measuring location by obtataining in advance values of the dimension of ingot, pouring temperature and casting speed which do not produce any inner crackings and over segregations.

83. 发明专利

JPS5611152A MOLD FOR CONTINUOUS CASTING OF METAL 失效
公开(公告)号：JPS5611152A
公开(公告)日：1981-02-04
申请号：JP8658679
申请日：1979-07-09
申请人： NIPPON STEEL CORP
发明人： SAEKI TAKESHI , KAWASHIMA KATSUHIRO , MURATA MITSUO , OOTA MITSUHIRO
IPC分类号： B22D11/04 , B22D11/043 , B22D11/053 , B22D11/07
摘要： PURPOSE:To make the charging work of powder easy reduce the seattering of the molten play and shorten the working time of stamping after the end of casting by providing high-frequency vibrators which apply the specific frequency to the side ends of the wall surfaces of the mold. CONSTITUTION:This mold for continuous casting consists of broad mold faces 1, 1' and narrow mold faces 2, 2'; each mold having a cooling water box 3 and a mold copper plate 4. The mold copper plate 4 is provided with slits 8, 8' over the entire width of the mold, in the horizontal direction above and below the meniscus position M at the casting. A vibration connecting plate 5 is provided in the form of a flange to the position corresponding to the meniscus, and a high-frequency vibrator 6 applying 5-50kHz vibrations is disposed on the side end of the side surface of the mold. These decrease friction force, prevent seizure, and make the charging work of powder easy on account of the decreased number of the vibrators in the upper part of the mold.

84. 发明专利

JPS5498289A ELECTROMAGNETIC ULTRASONIC WAVE GENERATING DETECTOR 失效
公开(公告)号：JPS5498289A
公开(公告)日：1979-08-03
申请号：JP434078
申请日：1978-01-20
申请人： NIPPON STEEL CORP
发明人： SUZUKI HISAO , KAWASHIMA KATSUHIRO , MUROTA SHIYOUJI , NAKAMORI YUKIO
IPC分类号： G01B17/02 , G01B17/00 , G01N29/04
摘要： PURPOSE:To perform judgement of internal defects and material of conductive materials and measurement of their thicknesses or the like providing an intermediate magnetic pole between an ultrasonic wave exciting coil and a detecting coil. CONSTITUTION:When a high frequency pulse current is flowed to an ultrasonic wave exciting coil 29 from a high frequency pulse current source 9, eddy current 30 distributing in circular form parallel to the surface is generated by electromagnetic induction in a conductive material 3. The eddy current 30 and magnetic fields 27 produce vibrating force 31. This vibrating force 31 advances in the direction of an arrow 32. When it arrives at an internal defect, it is reflected thereby and advances in the direction of an arrow 33. And vibrating force 34 is produced. This produces eddy current 35. This eddy current 35 is detected by a detecting coil 36. Here, provision of an intermediate magnetic pole 24 between the ultrasonic wave exciting coil 29 and detecting coil 36 enables electromagnetic coupling of both coils to be perfectly cut off and enables dead zone by transmission pulses to be considerably reduced.

85. 发明专利

JPS5495288A ELECTROMAGNETIC ULTRASONIC GENERATION 失效
公开(公告)号：JPS5495288A
公开(公告)日：1979-07-27
申请号：JP110178
申请日：1978-01-11
申请人： NIPPON STEEL CORP
发明人： SUZUKI HISAO , KAWASHIMA KATSUHIRO , MUROTA SHIYOUJI , NAKAMORI YUKIO
IPC分类号： G01B17/02 , G01B17/00 , G01N29/04
摘要： PURPOSE:To detect the internal defects of conductive material by providing a coil for generating ultrasonic wave for flowing high frequency pulse currents near the surface of the conductive material. CONSTITUTION:When the electromagnetic ultrasonic waves having been generated arrive at the other surface or inside defect 23 of a conductive material 1, they are reflected and return in the derection of the arrow 24. When the reflected electromagnetic ultrasonic waves arrive near the surface of the conductive material 1, vibrating force 25 is produced and as a result of its mutual action with a magnetic field 10, an eddy current 26 is produced by Fleming's right-hand rule. The eddy current 26 is detected with a detecting coil 7 and the waveform thereof is displayed in a display device 28. In the display device 28, an initial pulse waveform 29 appears, then an internal defect 30 appears, thence the bottom waveform 31 from the bottom S appears.

86. 发明专利

JPS5451553A THICKNESS MEASURING APPARATUS APPLYING ELECTROMAGNETIC ULTRASONIC WAVES 失效
公开(公告)号：JPS5451553A
公开(公告)日：1979-04-23
申请号：JP11666077
申请日：1977-09-30
申请人： NIPPON STEEL CORP
发明人： SUZUKI HISAO , KAWASHIMA KATSUHIRO , MUROTA SHIYOUJI , NAKAMORI YUKIO
IPC分类号： G01B17/02
摘要： PURPOSE:To measure the thickness with the propagation time of ultrasonic waves and reduce noises by generating transversal ultrasonic waves in a conductive material through the mutual ds and detecting the eddy currents by the vibrating force thereof and magnetic fields. CONSTITUTION:An ultrasonic wave generating coil 6 is provided near a donductive material 1 an ultrasonic pulse power source 7 to induce eddy currents 8 in parallel with the surface. On the other hand, magnetic fields 5 in the perpendicular direction are generated in the conductive material 1 by magnetic field generators 2 thru 4, and the pulse-form motion 9 in the same direction as the surface is induced by the mutual action with the eddy currents 8. This moving force advances thereafter in the perpendicular direction shown by an arrow 10 and reflects and turns back like an arrow 11 upon arriving at the other surface of the material 1 and becomes parallel moving force tpon arriving at the neighborhood of the surface, inducing eddy currents 13. The eddy currents 13 are detected with a detecting coil 14, is subjected to amplification and detection in a circuit 15 then to counting in a circuit 19 and are converted to the thickness of the conductive material 1 by a time-thickness conversion circuit 20. The thickness is then displayed 21. In this way, the thickness may be measured.

87. 发明专利

JPS5432346A MEASURING APPARATUS OF THICKNESS DEVIATION OF METAL PIPES BY ELECTROMAGNETIC ULTRASONIC WAVES 失效
公开(公告)号：JPS5432346A
公开(公告)日：1979-03-09
申请号：JP9845877
申请日：1977-08-17
申请人： NIPPON STEEL CORP
发明人： SUZUKI HISAO , KAWASHIMA KATSUHIRO , MUROTA SHIYOUJI , NAKAMORI YUKIO
IPC分类号： G01B7/06 , G01B7/00 , G01B17/02
摘要： PURPOSE:To perform automatic measurement during travelling by providing an ultrasonic wave generating coil for flowing high frequency current and a magnetic field generator.

88. 发明专利

JPS5329789A CUTTING CONTROL DEVICE OF PR OCESSED METAL BY ELECTROMAGNETIC ULTRASONIC WAVE 失效
公开(公告)号：JPS5329789A
公开(公告)日：1978-03-20
申请号：JP10360176
申请日：1976-09-01
申请人： NIPPON STEEL CORP
发明人： SUZUKI HISAO , IWAO NORITO , KAWASHIMA KATSUHIRO , MUROTA SHIYOUJI , NAKAMORI YUKIO
IPC分类号： G01N27/82 , B23D36/00 , B26D5/36 , G01N29/04
摘要： PURPOSE:To cut off defect part with high efficiency, by detecting length of defect part such as pipe and controlling cutting position in electromagnetic ultrasonic crack detector.

89. 发明专利

JPS5323066A ELECTROMAGNETIC COIL FOR ULTRASONIC WAVE 失效
公开(公告)号：JPS5323066A
公开(公告)日：1978-03-03
申请号：JP9794376
申请日：1976-08-17
申请人： NIPPON STEEL CORP
发明人： SUZUKI HISAO , KAWASHIMA KATSUHIRO , MUROTA SHIYOUJI , NAKAMORI YUKIO
IPC分类号： H05K1/16 , G01M3/24 , G01N27/90 , G01N29/04 , H01F5/00

90. 发明专利

JPS52156728A METHOD AND DEVICE FOR OPERATING CONTINUOUS CASTING 失效
公开(公告)号：JPS52156728A
公开(公告)日：1977-12-27
申请号：JP7419476
申请日：1976-06-23
申请人： NIPPON STEEL CORP
发明人： SUZUKI HISAO , IWAO NORITO , KAWASHIMA KATSUHIRO , MUROTA SHIYOUJI , NAKAMORI YUKIO
IPC分类号： B22D11/16

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