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91. 发明专利

JPS56144863A WELDING METHOD 失效
公开(公告)号：JPS56144863A
公开(公告)日：1981-11-11
申请号：JP4703780
申请日：1980-04-10
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , WADA KOUICHI
IPC分类号： B23K9/028 , B23K9/00
摘要： PURPOSE:To obtain a superior weld zone at all times by performing build-up welding in the weld start part and remelting the initial filled metal. CONSTITUTION:Welding is started from near an arbitrary point C of pipes, and after one circumference of the pipes are welded on progression of root pass welding 10, build-up welding 12 is perormed by way of the start point of the root part in succession of this. In the root pass start parts C'-D' the backing material in the bottom part has not penetrated sufficiently and the lack of fusion is caused, but if build-up welding is performed after the welding of one circumference, it is remelted sufficiently, thereby eliminating the defective parts of lack of fusion. The reason for this lies in that because of the small amount of the filled metal between C'-D', the heat of welding arc arrives sufficiently at the bottom of the groove and that the heat energy sufficient for remelting these parts is supplied to the bottom part.

92. 发明专利

JPS5689408A METHOD OF DRILLING FUEL NOZZLE 失效
公开(公告)号：JPS5689408A
公开(公告)日：1981-07-20
申请号：JP16325179
申请日：1979-12-15
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , YOSHIDA YASUYUKI , SUZUKI SATOSHI , OKA TAMOTSU
IPC分类号： B23B35/00 , B23P13/02 , B23P15/16
摘要： PURPOSE:To provide stainless jets by communicating a fuel supply path to the jets with electrolytic working, after blind holes intended to be the jets are provided in advance in predetermined positions on the end of a nozzle, by means of a high energy density heat source such as laser, electron beam, etc. CONSTITUTION:A plurality of blind holes intended to be jets 1 are provided in predetermined positions of the end of a nozzle by a working means of heat source such as laser, electron beam, etc. A nozzle hole 2 for communicating the jets 1 to a fuel supply path 4 is provided by first providing a preliminary hole by machining or the like and then communicating the blind holes to the nozzle hole 2 by electrolytic working or electrospeark machining. A fuel nozzle can be formed without any blocking of nozzle hole due to burr or sputter.

93. 发明专利

JPS5640752A EXECUTION DEVICE OF MAGNETIC POWDER CRACK FINDER 失效
公开(公告)号：JPS5640752A
公开(公告)日：1981-04-17
申请号：JP11602279
申请日：1979-09-10
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , WADA KOUICHI , YASHIMA MINORU , MANABE YUKIO , NOBUSHIGE TADASHI , TOYAMA SEINI
IPC分类号： G01R33/02 , G01N27/84
摘要： PURPOSE:To enable to obtain function of failure detection in water the same as on land, by filling the inspection liquid including mangnetic powder in the inspection cassette made of transparent seal vessel. CONSTITUTION:Afterstalling the inspection cassette 10 on the surface of the inspected construction object 4, magnetization is made by flowing current from the power supply 2 of magnetization unit to the magnetizer 1, the magnetic flux 7 is disturbed at the failure part 8, the leakage magnetic flux reaches inside the inspection cassette 10 via the non-conductive elastic thin film 10b, and sharp magnetic powder pattern is drawn on the non-conductive elastic thin film 10b with the magnetic powder 5 not subject to the effect of external water flow. The failure part can be detected with this pattern.

94. 发明专利

JPS561287A PRODUCTION OF TIICLAD STEEL 失效
公开(公告)号：JPS561287A
公开(公告)日：1981-01-08
申请号：JP7403279
申请日：1979-06-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , FUKAYA YASUHIRO
IPC分类号： B23K20/00
摘要： PURPOSE:To produce the Ti-clad steel having superior joint performance by inserting Mo as the 1st insert material and Ni, Cr, Cr-Ni or Cr-Cu as the 2nd insert material in a diffusion welding method performing welding through static pressure in the state of solid phase. CONSTITUTION:Thin layers are inserted to accomplish the insertion. A thin layer of Mo is inserted as the 1st insert material and a thin layer of Cr or Ni or Cr-Ni or Cr-Cu (Mo and Cr oppose) is inserted between Mo and Fe as the 2nd insert material. The thin layers are constituted by plating or foils and their thicknesses are preferably 5-500 microns. The diffusion welding is accomplished in a vacuum atmosphere (10 torr), at heating temperatures 700-1,100 deg.C and pressing force of 0.1kg/mm. or less for 10 minutes or more of pressing time. This yields the joint of superior strength of 14kg/mm. or more in ASTM shearing strength.

95. 发明专利

JPS55154592A MANUFACTURE OF ELECTRODE FOR STICKING PREVENTION APPARATUS OF OCEAN LIVING THING BY DIFFUSION WELDING 失效
公开(公告)号：JPS55154592A
公开(公告)日：1980-12-02
申请号：JP6221879
申请日：1979-05-22
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , FUKAYA YASUHIRO , KATOU AKIRA , KOBAYAKAWA HISASHI , MORI HIDETAROU
IPC分类号： C25B11/02 , C25B1/34
摘要： PURPOSE:To obtain a high capacity electrode at a low price, by placing the side board, Cu plate and spacer on the current transmission board and carrying out diffusion welding of each joining part by using heating jig after laminating with the clearance left. CONSTITUTION:The side board 8, the spacer 11 and the current transmission board 7, are placed on the pressure jig 13 of welding machine. The side board 9, the Cu plate 10 used for current transmission board and the spacer 11, are placed on the board 7. Plural side boards 8 and plural boards 7, are successively laminated putting between the spacer 11 by leaving the clearance that corresponds to the amount of transformation at the time of welding. The board 7, 8, the spacer 11 and the pressure jig 13', are placed on the uppermost step and these are set. Next, diffusion welding of the joining parts 14, 15 is carried out under pressure by raising temperature in vacuum or inactive gas atmosphere. By the above method, transformation at the time of welding is not occurred and electrode for sticking prevention apparatus of ocean living thing which is firmly joined each board 7, 8, 9 and Cu plate 10, can be obtained.

96. 发明专利

JPS55149787A IMPROVING METHOD IN DIFFUSION WELDING 失效
公开(公告)号：JPS55149787A
公开(公告)日：1980-11-21
申请号：JP5807979
申请日：1979-05-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , FUKAYA YASUHIRO , NAGAREDA MASAZUMI , INOUE SHIGEO
IPC分类号： B23K20/00
摘要： PURPOSE:To perform diffusion welding perfectly without causing deformation through direct welding by heating joining materials to their recrystallization temperature or more and pressing them then releasing the pressure and elevating their temperature to a high temperature below their melting point and holding said temperature for a fixed time. CONSTITUTION:Coupling materials are heated to their recrystallization temperature (the lower recrystallization temperature with dissimilar material joints) in a vacuum or inert gas atmosphere and they are pressed under said temperature. Thence, in succession to this, or after the temperature is once lowered, they are reheated at a high temperature below their melting point in the state released from pressure, whereby diffusion welding is completed. In this case, the heating atmosphere is kept vacuum or inert gas atmosphere throughout this process. As a result of this, extremely superior joining results are obtainable without using any insert material or the like for promotion of bondability at all and without causing any deformation in direct joining.

97. 发明专利

JPS55147480A WIND RESISTANT NOZZLE FOR GAS SHIELDED WELDING 失效
公开(公告)号：JPS55147480A
公开(公告)日：1980-11-17
申请号：JP5528079
申请日：1979-05-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , WADA KOUICHI , SATOU MASAHIKO , YAMAOKA TAKAYOSHI
IPC分类号： B23K9/29 , B23K9/26
摘要： PURPOSE:To prevent the disturbance of shielding gas flow owing to strong wind and make possible gas shielded welding at all times by forming the nozzle for gas shielded welding to a double barrel system and spouting part of gas as surrounding gas on the outer side of the shielding gas. CONSTITUTION:An end part 3 is mounted to the end of an outer barrel 1 of the nozzle and an inner barrel 6 is inserted to the inner side of the outer barrel. These are then mounted by matching the key 7 and key hole 8 at the top end to assemble the nozzle. This is then connected to a commercially marketed welding torch 15 by means of a screw or quick joint 17. CO2 gas is supplied from the center of the welding torch 15. Part 19 of the supplied gas 18 passes through a branch effluent port 10 and spouts from the surrounding gas spouting ports, thereby forming a surrounding gas curtain 19'. The rest 20 of the gas forms the shielding gas 20' of the weld zone. The shielding gas 20' is protected by the surrounding gas curtain 19' to prevent the entry of the wind from the side into the weld zone and the shielding gas 20' is able to shield the weld zone perfectly from the outside wind and therefore the superior weld zone is formed.

98. 发明专利

JPS55130389A SIZE CONTROL METHOD IN DIFFUSION WELDING 失效
公开(公告)号：JPS55130389A
公开(公告)日：1980-10-09
申请号：JP3693379
申请日：1979-03-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , FUKAYA YASUHIRO , MINAMI INOO , INOUE SHIGEO , NAGAREDA MASAZUMI
IPC分类号： B23K20/00 , B23K20/02 , B23K20/14
摘要： PURPOSE:To evenly size-control the entire part of the welding works by electrically detecting the contact of the plural limit plates which prevent more than specified deformations of the welding works and intermediate members and releasing the pressing after the welding works contact the entire limit plates. CONSTITUTION:A clearance A which becomes the size reduction amount of the welding works 4 owing to diffusion welding is provided between an upper intermediate member 3 composed of the conductor having high-temperature high- strength and limit plates 5-1 and 5-2 composed of conductor material, respectively. When in this state the deformations of the welding works 4 progress unevenly during diffusion welding and, e.g., the plate 5-1 makes close contact with the member 3, then the welding work deformation amount detecting circuit between the both becomes closed circuit and a resistance meter 9-1 becomes 0OMEGA. Next, when the diffusion welding is further progressed from this state, the deformation on the plate 5-1 side of the welding works 4 is perfectly blocked by the plate 5-1 and the welding works 4 deform only on the plate 5-2 side. And finally, the plate 5-2 makes close contact with the member 3 as well and a resistance meter 9-2 indicates 0OMEGA, too, thus the welding works 4 may be evenly size-controlled.

99. 发明专利

JPS55126385A JOINING METHOD OF PIPE AND PLATE 失效
公开(公告)号：JPS55126385A
公开(公告)日：1980-09-30
申请号：JP3202879
申请日：1979-03-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： OOMAE TAKASHI , YOSHIDA YASUYUKI , HIROMOTO NOBUMI
IPC分类号： B23K9/028
摘要： PURPOSE:To prevent deformation of pipe and flange due to cooling after welding, by providing holes equal to outside diameter and inside diameter of pipe in the both sides of the flange and a groove in the inner wall, and inserting a pipe and expanding it, and then performing nonfiller welding, when joining a flange and a pipe. CONSTITUTION:A large diameter part 11 slightly larger than the outside diameter of a pipe 2 is provided on one side of a flange 1, and a small diameter part 12 nearly equal to the inside diameter of the pipe is provided on the opposite side face. The pipe 2 is inserted into said large diameter part 11, and a groove 4 is provided in the inner face of the large diameter part 11 of the flange. 1. The pipe 2 and flange 1 are joined together within the pipe by nonfiller interior welding 3, and the pipe 2 and flange 1 are completely sealed. Then, the interior welded part is expanded to deform plastically, and part of the outer circumferential surface of the pipe 2 is bulged within the groove 4, and the pipe 2 and flange 1 are affixed to increase the bond strength of the two. Or, nonfiller welding may be applied after expanding the pipe.

100. 发明专利

JPS55112190A DIFFUSTION WELDING METHOD OF COPPER AND TITANIUM 失效
公开(公告)号：JPS55112190A
公开(公告)日：1980-08-29
申请号：JP1600780
申请日：1980-02-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： UTO YOSHIMITSU , OOMAE TAKASHI , FUKAYA YASUHIRO , NAGAREDA MASAZUMI , YOSHIDA YASUYUKI
IPC分类号： B32B15/01 , B23K20/00 , B23K20/16 , B23K35/00
摘要： PURPOSE:To impart superior bonding strength and yet enable the method to be applied for the production of Cu-Ti clad plates, etc. by using Fe-Ag or Ni-Fe-Ni-Ag as insert materials at the time of diffusion-welding Cu and Ti. CONSTITUTION:At the time of diffusion-welding Cu and Ti, Fe-Ag or Ni-Fe-Ni-Ag are used as insert materials. When the Fe-Ag insert materials are used, this results in bonding of Cu-Fe-Ag-Ti but brittle intermetallic compounds are not formed among these. When Ni-Fe-Ni-Ag are used as insert materials, Ni perfectly dissolves in Fe and Cu as solid solution, whereby the bondability is improved.

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