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31. 发明专利

JPS5737257A Bonding inspection apparatus 失效
标题翻译：连接检查装置
公开(公告)号：JPS5737257A
公开(公告)日：1982-03-01
申请号：JP11252680
申请日：1980-08-15
申请人： Mitsubishi Heavy Ind Ltd
发明人： OOMAE TAKASHI , YASHIMA MINORU , HASEGAWA SHIGEO , SUZUKI SATOSHI
IPC分类号： G01N29/04 , G01N29/11
CPC分类号： G01N29/11
摘要： PURPOSE:To determine whether the bonding state is good or not with high efficiently and high accuracy, by a method wherein an ultrasonic wave is made incident on an object to be inspected formed by bonding a lining material to a body material, the multiple reflection from the bonded surface is detected, and the voltage ratio between the n-th and (n+1)-th reflected waves satisfying a given condition is compared with a set value. CONSTITUTION:An ultrasonic probe 2 is attached to a body material 17 to which a lining material 18 has been bonded, and a high-voltage pulse is transmitted to the probe 2 from a transmitting part 1. When inspection conditions are inputted to an inspection condition setting device 14, preset counters 4 and 5 detect the n-th and (n+1)-th reflected waves, wherein n representing an integer satisfying the following formula, and input their outputs to peak holding circuits 6 and 7 respectively. The n satisfies the condition represented by (2n-1)t>=D /(4lambda), wherein t is the plate thickness of the metal plate 17, D is the vibrator diameter of the probe 2 and lambda is the wavelength of the ultrasonic wave. The ratio between the output voltages of the circuits 6 and 7 is obtained through A/D converters 10, 11 and a divider circuit 12 and compared with a set value in a judging part 16, and whether the bonding state is good or not is displayed 15. Thereby, whether the bonding state is good or not is decided with high efficiency and high accuracy.
摘要翻译：目的：为了以高效高精度确定接合状态是否良好，通过将超声波入射到通过将衬里材料接合到主体材料形成的待检查物体上的方法来确定接合状态是否良好，检测接合表面，并将满足给定条件的第n和第（n + 1）个反射波之间的电压比与设定值进行比较。构成：将超声波探头2安装在已经接合有衬里材料18的主体材料17上，并且高压脉冲从发射部分1传递到探头2.当将检查条件输入到检查条件预置计数器4和5检测第n和第（n + 1）个反射波，其中n表示满足下列公式的整数，并将其输出分别输入到峰值保持电路6和7。 n满足由（2n-1）t> = D 2 /（4λ）表示的条件，其中t是金属板17的板厚度，D是探针2的振动器直径，λ是波长的超声波。电路6和7的输出电压之间的比例通过A / D转换器10,11和分频器电路12获得，并与判断部分16中的设定值进行比较，并且显示接合状态是否良好因此，以高效率和高精度确定粘合状态是否良好。

32. 发明专利

JPS5621059A METHOD AND DEVICE FOR DETERMINING POSITION IN AE MEASUREMENT 失效
公开(公告)号：JPS5621059A
公开(公告)日：1981-02-27
申请号：JP9751879
申请日：1979-07-31
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , YASHIMA MINORU , SUZUKI SATOSHI
IPC分类号： G01S5/18 , G01N29/04 , G01N29/14 , G01S5/22
摘要： PURPOSE:To prevent position determination errors by using amplitude attenuation based on the propagation distance of AE waves to compare the order of AE wave arrival with the order of AE signal amplitude and judging the existence of the mixture of AE waves. CONSTITUTION:AE signals 11 are inputted to an AE signal amplitude comparing circuit 4 and an AE wave arrival time difference measuring circuit 5. The comparing circuit 4 orders the AE signals in a sensor from the largest amplitude one to the smallest one one after the other. The measuring circuit 5 records the order of AE wave arrival to each sensor. A comparing circuit 6 judges that AE waves have mixed if the orders of information 12 that indicates the order of AE signal amplitude values and information 13 that indicates the order of AE wave arrival do not coincide with each other and judges that the AE waves have not mixed if the orders of the two coincide with each other. Only when the AE waves are judged not to have mixed, a position determination circuit 7 carries out position determination and a recorder 8 records the result.

33. 发明专利

JPS53142288A CONTACTLESS INSPECTING METHOD OF ROTATING BODY 失效
公开(公告)号：JPS53142288A
公开(公告)日：1978-12-11
申请号：JP5716677
申请日：1977-05-18
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAWADA NORIYUKI , OKAI TAKASHI , YASHIMA MINORU
IPC分类号： G01N29/14 , G01N29/04
摘要： PURPOSE:To suppress the generation of eddy current by the effect of the revolution of a shaft and the magnetic field formed by a detector and make possible contactless detecting of the elastic waves produced from the crack in a rotating body fromth the shaft end by installing the electromagnetic detector applying equal magnetic fields in the radius directon of the rotating body near the shaft end of the rotating body.

34. 发明专利

JPH10138143A TOWER-LIKE STRUCTURE PAINTING PRETREATMENT CONSTRUCTION METHOD, PAINTING CONSTRUCTION METHOD AND DEVICE THEREFOR 失效
公开(公告)号：JPH10138143A
公开(公告)日：1998-05-26
申请号：JP29489496
申请日：1996-11-07
申请人： MITSUBISHI HEAVY IND LTD
发明人： INOUE SHIGEO , ABIRU HISATOKU , YASHIMA MINORU , KONDO HIROSHI , FUKUMOTO MASASHI , MATSUMOTO TAKEJI
IPC分类号： B24C3/06
摘要： PROBLEM TO BE SOLVED: To provide a tower-like structure painting pretreatment construction method, a painting construction method and a device therefor that can perform painting pretreatment and spray painting by blasting equivalent to ground work even in high lift work at the time of repair-painting a tower-like structure such as a chimney cylinder. SOLUTION: Blasting work is performed being provided with a double mesh sheet 10 spread while maintaining a space to the peripheral surface of a specified length area of a chimney cylinder 51 and surrounding the peripheral surface to form shielded space for painting renewal work, a ring beam 14 provided movably in a vertical direction with a space to the peripheral surface within the shielded space, a blast nozzle 16 provided on the ring beam 14 so as to be travelable in the circumferential direction of the ring beam 14, an elevating drive drum 15 and a guide wire 13 for vertically moving the ring beam 14, blasting devices 19, 22 provided on the ground and an upper floor 53a so as to force-feed blasting material to the blast nozzle 16, and a suction vacuum pump 24 for recovering blasting material or the like jetted from the blast nozzle 16 in the shielded space.

35. 发明专利

JPH0932350A LINING AUTOMATIC CHIPPING DEVICE OF CHIMNEY, ETC. 失效
公开(公告)号：JPH0932350A
公开(公告)日：1997-02-04
申请号：JP18276895
申请日：1995-07-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： MINAMI NAGIO , YASHIMA MINORU , KONDO HIROSHI , MATSUMOTO TAKEJI , SATO HIDEKAZU
IPC分类号： E04G3/28 , E04H12/28 , E04G3/10
摘要： PROBLEM TO BE SOLVED: To chip the lining of a chimney efficiently up to the accurate depth without giving any damage to a chimney cylindrical body, etc. SOLUTION: A device mounting pedestal 8 is held in a turnable and liftable manner on the lower side of the central part of a floor 3 in a gondola 1 suspended inside a chimney cylindrical body 30, etc., in a liftable manner, a plurality of first guide cells are projected radially to the radial outside from the device mounting pedestal 8, a plurality of second guide cells 12 are held on the first guide cells 11 so that they can be moved in the direction of the radius, and a first driving device 13 for moving the second guide cells 12 is provided to the first guide cells 11. Drill type chipping devices 14 are held on the front ends of the second guide cells 12 so that they can be moved in the direction of the radius, a second driving device 15 is provided between the second guide cells 12 and drill type chipping devices 14, and chipping marks are formed on a lining surface 31 by the drill type chipping devices 14 with high lining destructive force. In that case, the first and second driving devices 13 and 15 are controlled by distance detector 18, operation volume detectors 19 and 20 of the first and second driving devices 13 and 15 and chipping depth controller 21.

36. 发明专利

JPH05177512A DURING-CUTTING SURFACE ROUGHNESS JUDGING METHOD 失效
公开(公告)号：JPH05177512A
公开(公告)日：1993-07-20
申请号：JP191492
申请日：1992-01-09
申请人： MITSUBISHI HEAVY IND LTD
发明人： YUZAKI YOSHIHIRO , YASHIMA MINORU
IPC分类号： B23Q17/09 , B23Q17/20
摘要： PURPOSE:To accurately carry out surface roughness judgment during cutting for providing a judging method suitable as a machining abnormality detecting system during unmanned operation by obliquely applying ultrasonic waves to a cutting part through a liquid medium, and also by detecting the reflected waves from the cutting part. CONSTITUTION:A work to be cut 1 is cut by a cutting tool 2 that has been fitted to a tool holder 3. In this case, a chamber in which cutting oil 6 has been filled is formed on the work 1 on the opposite side of the cutting tool 2, and herein a probe holder 7 for holding a ultrasonic probe 4 is arranged. To this ultrasonic probe 4, a ultrasonic transmitter 9 and a receiver 10, and the others are connected. The ultrasonic waves from the ultrasonic probe 4 are obliquely applied to the cutting part through cutting oil 6, and also the reflected waves from the cutting part are detected by the ultrasonic probe 4. Further, the detected signals are compared with a voltage-roughness conversion table by means of a computer 14 for judging the surface roughness. On the other hand, in accordance with the result of the surface-roughness judgment, a machine tool is controlledly driven by a control unit 15.

37. 发明专利

JPH045542A TOOL ABNORMALITY DETECTING METHOD 失效
公开(公告)号：JPH045542A
公开(公告)日：1992-01-09
申请号：JP10525590
申请日：1990-04-23
申请人： MITSUBISHI HEAVY IND LTD
发明人： TSUKAMOTO EIHIKO , EGAWA TSUNEO , YASHIMA MINORU , ICHIKIZAKI TETSUO
IPC分类号： G01B17/00 , B23Q17/09 , G01N3/58
摘要： PURPOSE:To securely detect tool abnormality by making an ultrasonic wave incident on the surface of a body which is already ground and detecting the wear and defective of the tool according to the time from the incidence of the ultrasonic wave to the return of the wave. CONSTITUTION:A convergence type ultrasonic probe 4 is set at the position where the surface state of the grounded part can be monitored continuously. Then deaerating water is supplied to remove the air between the probe 4 and grounded body 1. While machining is carried out in this state, a measurement system is put in operation. The ultrasonic wave 5 sent by the probe 4 is propagated into water to reach the surface of the grounded body 1 and the wave is reflected there, fed back to the probe 4, and converted into an electric signal. A gate circuit 10 extracts only a signal which is reflected directly by the surface of the grounded body 1 from this electric signal. The propagation time of the extracted signal is measured by a beam path length measuring circuit 11. A computer 12 compares the measured propagation time with that of a normal part. If abnormal size continues exceeding a range determined by an initial condition setter 13, the tool abnormality is decided.

38. 发明专利

JPH038708B2 失效
公开(公告)号：JPH038708B2
公开(公告)日：1991-02-06
申请号：JP14906883
申请日：1983-08-15
申请人： MITSUBISHI HEAVY IND LTD
发明人： WADA KOICHI , YASHIMA MINORU , URAKAWA TOMOSHI
IPC分类号： G01N29/26

39. 发明专利

JPH01195361A ULTRASONIC FLAW DETECTOR 失效
公开(公告)号：JPH01195361A
公开(公告)日：1989-08-07
申请号：JP1731288
申请日：1988-01-29
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAJIMOTO KATSUYA , YASHIMA MINORU , NOBUSHIGE TADASHI , EKUSA HIROSHI , UJIHARA TAKASUMI
IPC分类号： G01N29/04 , G01N29/07
摘要： PURPOSE:To surely detect cracks by displaying the position and the depth of a crack of an object to be examined in accordance with the echo propagation time of a longitudinal acoustic wave and the disappearance of echo and giving the alarm of an influence by the propagation time to the rear face of said object of a transverse wave calculated in accordance with a specific formula. CONSTITUTION:An ultrasonic wave is made incident at an angle theta i on the surface of an object 1 to be examined from an oscillator 6 through a wedge 7. The longitudinal wave and the transverse wave are propagated at refracting angles thetarL and thetarS respectively. The reflected wave of the longitudinal wave is received from a crack 3 of the object 1 and the propagation time is measured by a checker 8 to calculate and display the length from the point of incidence of the acoustic wave to the crack 3. A contact 5 is moved away from the crack 3, and the depth of the crack is decided and displayed by the position from which echo cannot be detected. When a time Ts calculated in accordance with the formula is shorter than said measured propagation time, an alarm lamp is lit because there is probability that said measured value is affected by recep tion of the transverse wave as the noise.

40. 发明专利

JPS6474443A AUTOMATIC ULTRASONIC FLAW DETECTING METHOD FOR WELD ZONE 失效
公开(公告)号：JPS6474443A
公开(公告)日：1989-03-20
申请号：JP23173087
申请日：1987-09-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： YASHIMA MINORU , NOBUSHIGE TADASHI
IPC分类号： G01N29/04 , G01N29/11
摘要： PURPOSE:To remove noises from the bead surfaces of the weld reinforcement parts of a fillet weld zone or butt weld zone by setting an effective flaw detection range in a section perpendicular to a weld line preliminarily and storing the position of a reflection point as defect data only when the position is within the effective flaw detection range. CONSTITUTION:The effective flaw detection range in the section perpendicular to the weld line is set preliminarily by a computer 10 according to various elements regarding welding. When the reflected wave of an ultrasonic wave sent out of a probe 4 applied to the surface of a material to be welded is received, the computer 10 calculates the position of the reflection point in the section perpendicular to the weld line from the angle theta of refraction of the probe 4, the acoustic velocity (v) in materials 1 and 2 to be welded, and the propagation time (t) of the ultrasonic wave in the materials to be welded, and stores the position as the defect data only when the position is within the effective flaw detection range. Noises can be removed from the bead surfaces of the weld reinforcement part of the fillet weld zone and butt weld zone with this constitution.

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