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公开(公告)号：US5650236A
公开(公告)日：1997-07-22
申请号：US551610
申请日：1995-11-01
CPC分类号： G08B13/2408 , G08B13/2437 , G08B13/2442 , Y10S428/90 , Y10S428/928 , Y10T428/12465
摘要： A magnetic marker of the present invention includes a magnetic thin wire for generating pulses and bodies of soft magnetic materials that are arranged close to the two ends of the thin wire that have a smaller coercive force than the magnetic thin wire. The magnetic thin wire has a diameter of 60-115 .mu.m and has a ratio of B.sub.r /B.sub.s of a B-H loop of 0.8 or more. Thus, a small magnetic marker can be formed which provides a large Barkhausen effect even if it contains a very short magnetic thin wire.
摘要翻译： 本发明的磁性标记包括用于产生脉冲和磁性材料体的磁性细线，其布置成靠近细线的两端，矫顽力小于磁性细线。 磁性细线的直径为60-115μm，B-H环的Br / B比为0.8以上。 因此，即使包含非常短的磁性细线，也可以形成提供大的巴克豪森效应的小型磁性标记。
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2.发明授权
公开(公告)号：US4312231A
公开(公告)日：1982-01-26
申请号：US55298
申请日：1979-07-06
CPC分类号： G01N29/2412 , G01N2291/0423
摘要： An apparatus for generating and detecting an electromagnetic ultrasonic wave in which a magnetic field generator forms a magnetic field at the surface area of one side of a conductive material, and an eddy current and impulse of a magnetic field are produced in the surface area by supplying a high frequency current pulse to an ultrasonic wave generating coil, the interaction therebetween producing an ultrasonic wave which travels in the conductive material and further, the eddy current resulting from the interaction between the formed magnetic field and a reflected ultrasonic wave being reflected by another side of the conductive material or the internal defect contained therein is detected by a detecting coil which is electromagnetically separated from the ultrasonic wave generating coil by a decoupling means.
摘要翻译： 一种用于产生和检测电磁超声波的装置，其中磁场发生器在导电材料的一侧的表面积处形成磁场，并且在表面积中产生涡流和磁场的脉冲， 向超声波发生线圈提供高频电流脉冲，其之间的相互作用产生在导电材料中行进的超声波，并且由形成的磁场和反射的超声波之间的相互作用产生的涡流被另一侧反射 通过由去耦装置与超声波发生线圈电磁分离的检测线圈来检测导电材料或其内部的内部缺陷。
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3.发明授权
公开(公告)号：US5467655A
公开(公告)日：1995-11-21
申请号：US419968
申请日：1995-04-10
CPC分类号： G01H13/00 , B06B1/04 , G01H5/00 , G01N29/12 , G01N29/2412 , G01N2291/014 , G01N2291/0237 , G01N2291/02854 , G01N2291/0421 , G01N2291/0422 , G01N2291/051 , G01N2291/2626
摘要： A method for measuring properties of a cold rolled thin steel sheet, comprising the determination, by using a resonant electromagnetic ultrasonic wave sensor for a standing wave, of the ratio of a thickness resonant frequency of a transverse ultrasonic wave propagating within a cold rolled thin steel sheet in the direction of thickness while polarized in a direction parallel to the direction of rolling to a thickness resonant frequency of a longitudinal ultrasonic wave propagating within the cold rolled thin steel sheet in the direction of thickness, and the ratio of a resonant frequency of a transverse ultrasonic wave propagating within the cold rolled thin steel sheet in the direction of thickness while polarized in a direction normal to the direction of rolling to a thickness resonant frequency of a longitudinal ultrasonic wave propagating in the direction of thickness, and approximately determining the Young's modulus and the Lankford value according to a computing formula using the resultant two measured -ratio values, the sound speed ratio of a SH0 plate wave regarded as a constant value and a known value of modulus of elasticity; and an apparatus for measuring properties of a cold rolled thin steel sheet comprising an electromagnetic ultrasonic wave device, a computing device and a controlling device for executing the measurement of properties and the computation.
摘要翻译： 一种用于测量冷轧薄钢板的性能的方法，其特征在于，包括通过使用用于驻波的共振电磁超声波传感器确定在冷轧薄钢板内传播的横向超声波的厚度共振频率的比率 沿着与轧制方向平行的方向偏振到沿着厚度方向在冷轧薄钢板内传播的纵向超声波的厚度共振频率的厚度方向的厚度方向的片材， 横向超声波在冷轧薄钢板内沿厚度方向传播，沿与轧制方向正交的方向偏振至在厚度方向上传播的纵向超声波的厚度共振频率，并且大致确定杨氏模量 和兰克福德价值根据计算公式使用th 得到两个测量的比值，将SH0平板波的声速比视为常数值和已知的弹性模量值; 以及用于测量冷轧薄钢板的性能的装置，其包括电磁超声波装置，计算装置和用于执行特性和计算的测量的控制装置。
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公开(公告)号：US4460033A
公开(公告)日：1984-07-17
申请号：US280550
申请日：1981-07-02
CPC分类号： B22D11/225 , B22D11/207
摘要： In a method for continuous casting of steel, a slab having good quality is obtained by inspecting the profile of the unsolidified region of the slab in the transverse direction thereof during casting and controlling the cooling pattern so that the profile matches a pre-determined standard profile.
摘要翻译： 在连续铸造钢的方法中，通过在铸造期间检查板坯的未固化区域的横向方向的轮廓并控制冷却模式，使得型材匹配预定的标准型材 。
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公开(公告)号：US4740747A
公开(公告)日：1988-04-26
申请号：US705467
申请日：1985-02-11
申请人： Katsuhiro Kawashima , Masaaki Hatta , Hiroshi Yada
发明人： Katsuhiro Kawashima , Masaaki Hatta , Hiroshi Yada
CPC分类号： G01N27/72
摘要： A method of and apparatus for measuring the degree of transformation of the structure of an object. An object is placed between a transmission coil and a receiving coil. An A.C. current or a pulse current or a combination of the A.C. current and the pulse current are supplied to the transmission coil, and the degree of transformation is detected by means of an electric signal obtained through the receiving coil.
摘要翻译： PCT No.PCT / JP84 / 00309 Sec。 371日期1985年2月11日 102（e）1985年2月11日PCT PCT。1984年6月14日PCT公布。 出版物WO85 / 1985年1月3日，1985年。一种用于测量物体结构的变形程度的方法和装置。 物体被放置在传输线圈和接收线圈之间。 交流电流或脉冲电流或交流电流和脉冲电流的组合被提供给发送线圈，并且通过通过接收线圈获得的电信号来检测变换度。
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公开(公告)号：US4460034A
公开(公告)日：1984-07-17
申请号：US506864
申请日：1983-06-22
IPC分类号： B22D11/053 , B22D11/04 , B22D11/10
CPC分类号： B22D11/053
摘要： A continuous casting mold having the wall thickness of each of parts corresponding to a point where molten steel begins to solidify during continuous casting is arranged to be locally thinner than other parts of the mold. High frequency oscillation is applied to the locally thinned parts to vibrate them to a sufficient amplitude to prevent the seizure of a cast steel piece from taking place due to the heat thereof for improvement in the surface quality thereof.
摘要翻译： 具有对应于在连续铸造期间钢水开始固化的点的各部分的壁厚的连续铸造模具被布置成局部地比模具的其它部分薄。 将高频振荡施加到局部变薄的部件上以将其振动到足够的幅度，以防止由于其热量而使铸钢件发生发热，从而改善其表面质量。
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