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1. 发明专利

JPH01114740A DETECTION OF CRACK OF CONCRETE 失效
公开(公告)号：JPH01114740A
公开(公告)日：1989-05-08
申请号：JP27434287
申请日：1987-10-29
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAJIMOTO KATSUYA , NAKANE TAKEMI
IPC分类号： G01N21/91
摘要： PURPOSE:To easily detect the cracked part of a structure by penetrating a liquid dissolved with a fluorescent material into the cracked part and projecting black light on the cracked part so that the fluorescent material emits light. CONSTITUTION:The fluorescent material such as, for example, eosine is dissolved in liquid such as water and the soln. is sprayed onto the structure which is an object to be inspected. The surface is then cleaned by spraying of water, etc., after lapse of the time when the soln. penetrates sufficiently into the crack. The black light (UV light) is projected on the surface part of the crack so that the fluorescent material emits light after the surface dries and the fluorescent material bleeding out of the inside of the crack to the surface part of the crack flocculates. Even the fine crack of about, for example, about 0.1mm is, therefore, easily and surely detected.

2. 发明专利

JPS6065957A MULTILAYER PRESSURIZED CASING 失效
公开(公告)号：JPS6065957A
公开(公告)日：1985-04-15
申请号：JP17078083
申请日：1983-09-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： SUDOU KATSUZOU , KAJIMOTO KATSUYA , MATSUMOTO TAKAHIRO , OZAKI TADAO
IPC分类号： F17C1/00 , F16J12/00
摘要： PURPOSE:To obtain a multilayer pressure vessel which can easily perform supersonic angle beam scanning from the single layer structure side by alternately combining a unit cylinder of multi layer structure and a unit cylinder of single layer structure to form a drum portion of composite structure. CONSTITUTION:Mirror portions 1, 17 of single layer structure and a drum portion comprising unit cylinders 3, 7, 11, 15 of multi layer structure and unit cylinders 5, 9, 13 of single layer structure are coupled to each other by peripheral welded joints 2, 16, 4, 6, 8, 10, 12, 14 to form a multilayer pressure vessel. If it is necessary to provide a nozzle 20 on the drum portion, the nozzle is fixed to the unit cylinder 9 of single layer structure. Thus, as at least one side of welded joint of each unit cylinder 4-14 is of single layer structure, supersonic angle beam scanning can be easily performed from the single layer side. Accordingly, the multilayer pressure vessel can be subjected to defect check similarly to a pressure vessel of single layer structure.

3. 发明专利

JPS6044677A SPIRAL MULTILAYER CYLINDER 失效
公开(公告)号：JPS6044677A
公开(公告)日：1985-03-09
申请号：JP14958383
申请日：1983-08-18
申请人： MITSUBISHI HEAVY IND LTD
发明人： SUDOU KATSUZOU , KAJIMOTO KATSUYA , MATSUMOTO TAKAHIRO , OZAKI TADAO
IPC分类号： F16L9/14 , B21C37/06 , F16L9/02

4. 发明专利

JPS59114435A Method for forming fatigue pre-cracking 失效
标题翻译：形成疲劳预裂纹的方法
公开(公告)号：JPS59114435A
公开(公告)日：1984-07-02
申请号：JP22437382
申请日：1982-12-21
申请人： Mitsubishi Heavy Ind Ltd
发明人： KAJIMOTO KATSUYA , KASAOKA SEIICHI , TANI MITSUO , IKUTOU NOBUAKI
IPC分类号： G01N3/32 , G01N1/28 , G01N3/02
CPC分类号： G01N3/02 , G01N2203/0298
摘要： PURPOSE:To fasten the generation and development of fatigue precracking at the central part of a plate thickness from both surface sides, by providing a sharp mechanical notch to only the central part of a plate thickness where the generation and development of fatigue cracking are delayed by the effect of compression residual stress. CONSTITUTION:A plate shaped notch 1 with a notch width of about 1-3mm. is applied to the direction of a plate thickness (t) by using a metal saw and a circular arc shaped notch 2 with a notch width of about 0.1-0.3mm. is subsequently applied to the central part of the plate thickness (t) where the generation and development of fatigue pre-cracking are delayed by a microcutter or electric discharge processing. In the next step, when repeated loads are applied about 10 -10 times under load determined at every test piece, smooth fatigue pre- cracking 3 is obtained in the plate thickness direction.
摘要翻译：目的：通过为板厚度的中心部分提供一个尖锐的机械缺口，从而使两个表面侧板厚中心处的疲劳预制件的生成和开发紧密结合，从而使疲劳裂纹的产生和发展被延迟压缩残余应力的影响。构成：具有约1-3mm的切口宽度的板形凹口1。通过使用金属锯和具有约0.1-0.3mm的切口宽度的圆弧形凹口2施加到板厚度（t）的方向。随后施加到板厚度（t）的中心部分，其中疲劳预裂化的产生和发展被微切割机或放电加工延迟。在下一步骤中，当在每个试件上确定的载荷下施加约10 4〜10 5次重复载荷时，在板厚方向上获得平滑的疲劳预裂3。

5. 发明专利

JPH0557532A CRACK DEVELOP RESTRAINING METHOD 失效
公开(公告)号：JPH0557532A
公开(公告)日：1993-03-09
申请号：JP24063991
申请日：1991-08-27
申请人： MITSUBISHI HEAVY IND LTD
发明人： FUJII MASANAO , KAJIMOTO KATSUYA
IPC分类号： B23P6/04 , E04G23/02
摘要： PURPOSE:To prolong the life of a structure member by injecting fine powder into a tip part of a crack happening in the structure member to blind the crack in cranes, etc. CONSTITUTION:A drilling hole 3 is drilled in the surface middle part of a crack 2 of a structure member 1, and also masking is made with a mask material 4 such as a vinyl tape except the middle part and end parts of the crack 2. Then a mixture of fine powder 5 having a particle diameter of l micron or less, e.g. SiO2 fine powder having a powder diameter of 0.5 micron degree, and penetrant such as an ink liquid is injected with a pressure charger 6 like injectors from the drilling hole 3. This can lessen opening part displacement at a crack tip part to load variation, enabling the restraint of crack spread.

6. 发明专利

JPH02126147A METHOD FOR MEASURING CRACK DEPTH OF REINFORCED CONCRETE 失效
公开(公告)号：JPH02126147A
公开(公告)日：1990-05-15
申请号：JP27874688
申请日：1988-11-04
申请人： MITSUBISHI HEAVY IND LTD
发明人： FUJII MASANAO , KAJIMOTO KATSUYA , MURAI RYOSUKE , KACHI KENICHI
IPC分类号： G01N27/20
摘要： PURPOSE:To easily and accurately measure the crack depth by flowing a high- conductivity liquid to a crack of concrete and measuring the electric resistance between the crack part surface and a reinforcing rod to estimate the crack depth. CONSTITUTION:A high-conductivity liquid 4 is poured to a crack 3 of concrete 2, in which a reinforcing rod 1 is buried, up to the surface, and a measuring circuit 7a having an ohm-meter 6 is connected between the surface part of this liquid 4 and an earth terminal 5 connected to the reinforcing rod 1. In this constitution, an electric resistance Rb between the surface of an indefectible part 8 of concrete and the reinforcing rod is first measured by a measuring circuit 7b, and an electric resistance Rc of an internal (t) of the liquid 4 is measured by a measuring circuit 7c, and an electric resistance Ra between the surface of the crack 3 of concrete 2 and the reinforcing rod 1 is measured by the measuring circuit 7a. Resistance values Ra and Rb are compared based on the resistance value Rc to estimate the depth of the crack 3.

7. 发明专利

JPS6144598B2 失效
公开(公告)号：JPS6144598B2
公开(公告)日：1986-10-03
申请号：JP10516476
申请日：1976-09-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAJIMOTO KATSUYA , HIROMI TSUNETAKA
IPC分类号： B23K9/23 , B23K9/02 , B23K9/235 , B23K31/00

8. 发明专利

JPS59215213A Manufacture of superthick-walled and spirally multilayered cylinder 失效
标题翻译：超薄壁和螺旋多层圆筒的制造
公开(公告)号：JPS59215213A
公开(公告)日：1984-12-05
申请号：JP8906683
申请日：1983-05-23
申请人： Mitsubishi Heavy Ind Ltd
发明人： SUDOU KATSUZOU , MATSUMOTO TAKAHIRO , KAJIMOTO KATSUYA
IPC分类号： B21C37/06
CPC分类号： B21C37/06
摘要： PURPOSE:To manufacture a superthick-walled and spirally multilayered cylinder of high quality by previously manufacturing plural spirally multilayered cylinders having each heavy wall thickness and different diameter and laminating them by fitting mutually the fitting surfaces formed at the inner or outer surfaces of them. CONSTITUTION:A spirally multilayered cylinder A is manufactured by wrapping a steel strip 2 spirally, continuously, and tightly around a cylinder 1, and attaching an outer cylinder 3 to the outside of the multilayered cylinder. Spirally multilayered cylinders B and C of high quality are also manufactured in the same way. Taperings corresponding each to an outer cylinder 3 of cylinder A and an inner cylinder 4 of cylinder B, and an outer cylinder 6 of cylinder B and an inner cylinder 7 of cylinder C, are processed to form fitting surfaces 3a, 4a and 6a, 7a. Thus, a superthick-walled and multilayered cylinder having desired wall thickness, diameter, and length is obtained in the way of fitting and fixing the fitting surface 3a of cylinder A and the fitting surface 4a of cylinder B to each other, and fitting and fixing successively the fitting surface 6a of cylinder B and the fitting surface 7a of cylinder to each other.
摘要翻译：目的：通过预先制造具有各重厚壁和不同直径的多个螺旋多层圆柱体，制造高品质的超厚壁和螺旋多层圆柱体，并通过相互配合形成在其内表面或外表面上的嵌合表面进行层压。构成：螺旋状多层圆筒A通过将钢带2螺旋地，连续地且紧密地包围在圆筒1上并且将外筒3附接到多层圆筒的外部来制造。也以同样的方式制造高品质的螺旋状多层圆筒B和C. 对应于缸A的外筒3和缸B的内筒4，缸B的外筒6和缸C的内筒7的锥形被加工成形成配合表面3a，4a和6a，7a 。因此，以圆柱体A的装配表面3a和气缸B的装配表面4a彼此装配和固定的方式获得具有期望的壁厚，直径和长度的超厚壁多层圆筒，并将其固定缸B的装配表面6a和气缸的装配表面7a相互连接。

9. 发明专利

JPS5825554B2 失效
公开(公告)号：JPS5825554B2
公开(公告)日：1983-05-27
申请号：JP1612377
申请日：1977-02-18
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , KAJIMOTO KATSUYA , KATO AKIRA , TANAKA SOJI
IPC分类号： B23K20/00 , B23K20/14 , C21D1/00

10. 发明专利

JPS5330442A METHOD OF PREVENTING LAMELLAR TEAR IN TIG WELDING 失效
公开(公告)号：JPS5330442A
公开(公告)日：1978-03-22
申请号：JP10516476
申请日：1976-09-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAJIMOTO KATSUYA , HIROMI TSUNETO
IPC分类号： B23K9/23 , B23K9/02 , B23K9/235 , B23K31/00

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