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91. 发明专利

JPH04372853A NONDESTRUCTIVE METHOD FOR EVALUATION OF TOUGHNESS USING BARKHAUSEN NOISE 失效
公开(公告)号：JPH04372853A
公开(公告)日：1992-12-25
申请号：JP28736591
申请日：1991-06-22
申请人： NIPPON KOSHUHA STEEL
发明人： NAKAI NORIHIKO
IPC分类号： G01N27/80
摘要： PURPOSE:To evaluate the toughness of a material accurately in a non-destructive manner by using Barkhausen noise (BHN), temper hardness and quenching temperature as parameters and by using a function of the amounts of these parameters. CONSTITUTION:Barkhausen noise (V), hardness (H) and quenching temperature (T) are used as parameters, and the toughness (Ch) of a material is estimated as a function [Ch=f(V, H, T)] of them. The square sum (Vp) of an output voltage of entire BHN generated in a process of magnetization is used as the BHN(V) and the maximum value (Vh) of an instantaneous output voltage of the BHN is used as the BHN (V). As for the material to be applied, SKD5, SKD6, SKD61, SKD62, SKD7, SKD8, etc., are mentioned and the material of which the state of the heat-treated texture has an effect on the BHN is an object. According to this constitution, the toughness can be evaluated in a nondestructive manner.

92. 发明专利

JPH0242402B2 失效
公开(公告)号：JPH0242402B2
公开(公告)日：1990-09-21
申请号：JP6414783
申请日：1983-04-12
IPC分类号： C21D9/52 , B21B38/02 , G01B7/00 , G01B7/28 , G01B7/34 , G01N27/72 , G01N27/80

93. 发明专利

JPH01233364A NON-DESTRUCTIVE INSPECTION EQUIPMENT FOR SPHERIC GRAPHITE CAST IRON PRODUCT 失效
公开(公告)号：JPH01233364A
公开(公告)日：1989-09-19
申请号：JP6124688
申请日：1988-03-15
申请人： HITACHI METALS LTD
发明人： OMURA TOSHIFUMI
IPC分类号： G01N29/04 , G01N27/80 , G01N27/84 , G01N29/00
摘要： PURPOSE:To achieve a high-level guaranteeing of quality by a total inspection, by arranging one automatic rotary handler to convey work to an ultrasonic flaw detector from a sound velocity measuring device and the other to convey work to a carry-out case from a magnetic particle inspector. CONSTITUTION:A sound velocity measuring device 3 determines a spheric graphitization factor by measuring a sound velocity as an ultrasonic wave passes through work 2. The work 2 on the device 3 is grabbed with an automatic rotary handler A to be conveyed to a water tank 6 on a turn table 5 near an ultrasonic flaw detector 4. The table 5 turns by 180 deg. and the work 2 stops at the device 4. With the device 4, a scanning mechanism lowers to detect a defect at a desired part with a probe. The table 5 turns again by 180 deg. and the work 2 returns to the original position. A magnetic particle inspector 7 performs a magnetization by an AC dual magnetization method and inspects a surface defect by scattering a magnetic powder liquid with a shower. A device B grabs the work 2 to be conveyed to a carry-out case 8 from the device 7, thereby enabling high-level guaranteeing of quality by a total inspection.

94. 发明专利

JPS6358252A STEEL MECHANICAL CHARACTERISTIC MEASURING DEVICE 失效
公开(公告)号：JPS6358252A
公开(公告)日：1988-03-14
申请号：JP20021686
申请日：1986-08-28
申请人： INSUCHI PURIKURADONOI FIZ AN B
发明人： NIKORAI NIKORAEBUICHI ZATSUEPI , PETORU PABUROBUICHI ASUTASHIEN
IPC分类号： G01N27/80

95. 发明专利

JPS6252451A APPARATUS FOR MEASURING HARDNESS 失效
公开(公告)号：JPS6252451A
公开(公告)日：1987-03-07
申请号：JP19269985
申请日：1985-08-31
申请人： SUZUKI MOTOR CO
发明人： OHASHI SEIICHI , TERADA MASAAKI , ITO HEIICHI
IPC分类号： G01N27/80
摘要： PURPOSE:To measure hardness without destructing a specimen, by detecting the magnetic permeability of the specimen based on the content of carbon by the electromagnetic induction action of a sensor means. CONSTITUTION:The primary current from a primary current supply means 6 is supplied to the primary coil 2A of a sensor means 2 and controlled by a primary current control means 8 so as to be set to a reference value. Because a secondary coil 2B is magnetically connected to the primary coil 2A, induced electromotive force is induced in the second coil 2B by electromagnetic induction action and the value thereof is displayed by a detection value display means 14. When an article 4 to be measured is arranged in close vicinity to the sensor means 2, the magnetic permeability in a medium in the vicinity of the sensor means 2 is changed with the hardness of the article 4 to be measured and, therefore, the electromotive force induced in the secondary coil 2B changes according to hardness. By collimating the display value of a detection value display means 14 with known data, hardness is measured.

96. 实用新型

JPS61147963U 失效
公开(公告)号：JPS61147963U
公开(公告)日：1986-09-12
申请号：JP3131485
申请日：1985-03-05
IPC分类号： G01N27/80

97. 发明专利

JPS60100047A METHOD AND APPARATUS FOR INSPECTING HARDNESS BY MAGNETIC NATURE 失效
公开(公告)号：JPS60100047A
公开(公告)日：1985-06-03
申请号：JP20727183
申请日：1983-11-04
申请人： SUZUKI MOTOR CO
发明人： KOYAMA SHIYUNKICHI , TAKEDA FUJIO , OOHASHI SEIICHI , ITOU HEIICHI , TERADA MASAAKI , OOISHI YOSHIHIKO
IPC分类号： G01N27/72 , G01N27/80
摘要： PURPOSE:To measure the hardness quickly in a non-destructive manner with a simple construction by measuring the residual magnetization of an object to be inspected through a detection coil after it is energized to utilize the correlationship between the magnetic characteristic and the hardness. CONSTITUTION:An object 1 to be inspected placed on a jig 2 moved and controlled with a motor 4 is magnetized with a magnetization coil 5. The residual magnetization is measured with a detection coil 7 adapted to output an induced electromotive force corresponding thereto and thus, based on a high correlationship of the magnetic characteristic and the hardness, the hardness of an object to be measured can be measured quickly in a non-destructive manner with a simple construction.

98. 发明专利

JPS59188508A On-line detector for amount of transformation and flatness of steel material 失效
标题翻译：在线检测器用于钢材的变形和平坦度
公开(公告)号：JPS59188508A
公开(公告)日：1984-10-25
申请号：JP6414783
申请日：1983-04-12
申请人： Kawasaki Steel Corp
发明人： MORITA MASAHIKO , HASHIMOTO OSAMU , TANAKA TOMOO
IPC分类号： C21D9/52 , B21B38/02 , G01B7/00 , G01B7/28 , G01B7/34 , G01N27/72 , G01N27/80
CPC分类号： B21B38/02 , G01B7/345 , G01N27/72
摘要： PURPOSE:To detect the amount of transformation and flatness of a steel material by arranging an exciting coil on one side of the steel material to be measured and plural detection coils at different positions, and processing detection signals from the detection coils. CONSTITUTION:When the steel material is in gamma single phase, pieces 141 and 142 of magnetic flux interlinking with the detection coils 151 and 152 through the exciting coil 13 excited by an AC exciting device 12 are generated with intensities corresponding to distances l1 and l2 from the exciting coil 13 and voltages proportional to them are induced. When alpha-phase precipitation by transition from gamma to alpha occurs to the steel material, the steel material 1 varies in magnetic field intensity and the pieces 141 and 142 of magnetic flux vary in initial intensity, and the variations are detected as variations in induced voltages across the detection coils 151 and 152. Further, when lift-off (flatness) variation is caused, the induced voltages across the detection coils 151 and 152 vary. Detection signals 161 and 162 are transmitted to an arithmetic device 17 and processed to calculate the amount of tranformation and flatness in the steel material 1.
摘要翻译：目的：通过在待测钢材的一侧配置励磁线圈和不同位置的多个检测线圈来检测钢材的变形量和平坦度，并对来自检测线圈的检测信号进行处理。构成：当钢材为γ单相时，产生通过AC激励装置12激励的激励线圈13与检测线圈151和152相互连接的磁通片141和142，其强度对应于距离l1和l2的距离引发励磁线圈13和与它们成比例的电压。当钢材料发生从γ到α的过渡的α相析出时，钢材1的磁场强度变化，磁通量141和142的初始强度变化，并且变化被检测为感应电压的变化在检测线圈151和152之间。此外，当发生剥离（平坦度）变化时，检测线圈151和152两端的感应电压变化。检测信号161和162被传送到运算装置17并进行处理，以计算钢材1中的变形量和平坦度。

99. 发明专利

JPS59147253A On-line hardness measurement of steel plate 失效
标题翻译：钢板在线硬度测量
公开(公告)号：JPS59147253A
公开(公告)日：1984-08-23
申请号：JP2055983
申请日：1983-02-12
申请人： Kawasaki Steel Corp
发明人： AKIYAMA MAMORU , TAKAHASHI AKIRA
IPC分类号： G01N27/80 , G01N27/72
CPC分类号： G01N27/72
摘要： PURPOSE:To measure the hardness of a steel plate with high accuracy, by correcting the thickness of the steel plate by measuring the intensity of the residual magnetism of the steel plate subjected to saturation magnetization. CONSTITUTION:A DC exciting electromagnet 2 is arranged in opposed relation to the surface of a continuously running steel plate 1 while the N-pole and the S-pole of the electromagnet 2 are arranged so as to be spaced apart to each other in the running direction of the steel plate 1 and the steel plate 1 is successively magnetized at the positions A-E thereof. By this constitution, even if the steel plate has been magnetized prior to advancing to the position A, it is subjected to saturation magnetization at the position B by the N-pole and demagnetized. Thereafter, said steel plate 1 is subjected to saturation magnetization in the reverse direction at the position D by the S-pole and finally possesses residual magnetization at the position E. The intensity of the residual magnetization is detected by a detector 4 and amplified by a converter 5 while the amplified magnetism is converted to hardness by performing the correction of the plate thickness to be recorded by a recorder 6.
摘要翻译：目的：通过测量经受饱和磁化强度的钢板的剩余磁强度，可以高精度地测量钢板的硬度。构成：直流励磁电磁铁2与连续运行的钢板1的表面相对地设置，而电磁铁2的N极和S极被布置成在运行中彼此间隔开钢板1和钢板1的方向在其位置AE处依次磁化。通过这种结构，即使钢板在前进到位置A之前已经被磁化，则在位置B处经受N极的饱和磁化并退磁。此后，所述钢板1在位置D处通过S极进行相反方向的饱和磁化，最终在位置E处具有剩余磁化强度。剩余磁化强度由检测器4检测并放大转换器5，同时通过执行由记录器6记录的板厚的校正将放大的磁性转换为硬度。

100. 实用新型

JPS5960552U JPS5960552U - 失效
公开(公告)号：JPS5960552U
公开(公告)日：1984-04-20
申请号：JP15622682
申请日：1982-10-18
IPC分类号： G01N27/80

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