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11. 发明专利

JPH0890255A PARTIAL VACUUM ELECTRON BEAM WELDING EQUIPMENT 失效
公开(公告)号：JPH0890255A
公开(公告)日：1996-04-09
申请号：JP21980694
申请日：1994-09-14
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： TAGUCHI TETSUO , TAMAKI TAKASHI , KUROISHI KAZUO
IPC分类号： B23K15/00 , B23K15/06 , H01S3/00 , H04N7/18
摘要： PURPOSE: To relatively miniaturize a welding equipment, to improve the working efficiency, and to secure the stable quality of a work where no defective welded parts are overlooked by arranging an appearance inspecting instrument between a winding device and a discharge port of a vacuum container, and detecting the ruggedness or the discoloration on the welded surface of the work after the welding. CONSTITUTION: An appearance inspecting instrument consisting of a TV camera 14 and a laser beam measuring instrument 16 is provided on the front side of a winding device, and in a work 1 after the welding, the ruggedness and discoloration of the welded surface of the work 1 after the welding can be detected by the TV camera 14, and the ruggedness of the welded surface of the work 1 can be detected by the laser beam measuring instrument. When the surface of the weld zone of the work 1 is measured by this laser beam measuring instrument 16, the dimensional change in the height of the surface of the weld zone can be measured, for example, by 1/100mm to discriminate the discoloration of the surface from the ruggedness which can not be discriminated only by the TV camera 14.

12. 发明专利

JPH07102471B2 失效
公开(公告)号：JPH07102471B2
公开(公告)日：1995-11-08
申请号：JP11169489
申请日：1989-04-28
IPC分类号： B23K15/06 , B23K26/12

13. 实用新型

JPH0713912Y2 失效
公开(公告)号：JPH0713912Y2
公开(公告)日：1995-04-05
申请号：JP245890
申请日：1990-01-16
IPC分类号： B23K15/06 , B23K15/00

14. 发明专利

JPH06269956A PARTIAL VACUUM ELECTRON BEAM WELDING EQUIPMENT AND METHOD THEREOF 失效
公开(公告)号：JPH06269956A
公开(公告)日：1994-09-27
申请号：JP5833493
申请日：1993-03-18
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： SENBA SATOYUKI , KUROISHI KAZUO , ISHIMURA TETSURO
IPC分类号： B23K15/00 , B23K15/06
摘要： PURPOSE:To improve working efficiency of carrying-in and carrying-out of materials to be welded by setting multidimensionally the electron beam irradiation position of an electron gun provided on the vacuum vessel inside and providing differential exhaust chambers on a carrying-in port and a carrying-out port. CONSTITUTION:The materials 1 to be welded enter the vacuum vessel 2 inside through a vacuum seal part 7 and a differential exhaust chamber 3 via a line arranging device 8. In the vacuum vessel 2, the electron gun 10 irradiates a welding groove of the materials 1 to be welded with an electron beam and heat input required for partial melting of the welding groove part is carried out to perform welding. The electron gun 10 is subjected to positional control multidimensionally by an electron gun traveling device 9. The periphery of a weld zone is cooled by using a cooling plate 11 as nccessary on the materials 1 to be welded after welding. The materials 1 to be welded after welding enters the line arranging device 8 through the carrying-out side differential exhaust chamber 3 and the vacuum seal parts 7 and after the deformation thereof is corrected, these materials are wound around a drum by a winding device 6.

15. 发明专利

JPH0523878B2 失效
公开(公告)号：JPH0523878B2
公开(公告)日：1993-04-06
申请号：JP11250087
申请日：1987-05-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUCHA TADAYASU
IPC分类号： B23K15/06 , B23K15/00

16. 发明专利

JPH0523571A VACUUM CHAMBER 失效
公开(公告)号：JPH0523571A
公开(公告)日：1993-02-02
申请号：JP17923491
申请日：1991-07-19
申请人： HITACHI LTD
发明人： UMEO KOUJI , WAI SHINICHI , IMAI KUNINORI , SASAKI HIDEAKI
IPC分类号： B01D53/26 , B01J3/02 , B23K15/06
摘要： PURPOSE:To ensure that a vacuum pumping time is shortened and stabilized by providing a system to supply a dry air to a vacuum chamber through a tank capable of storing a fixed amount of dry air constantly and a means for preventing an atmospheric air from becoming entrained into the vacuum chamber during the opening of a door for operation. CONSTITUTION:A dry air sent from a dry air source is stored in an air tank 3 through an air tank supply pipe 2, and then is supplied to a vacuum chamber 5 by a predetermined amount through a pipe for supply to a vacuum chamber 5 by control of a solenoid valve. The air used contains a low percentage of moisture so that the amount of moisture attaching to the vacuum chamber 5 is extremely small. Therefore, the effect of minimizing a vacuum pumping time is obtained through a pipe for vacuum pumping 11. In addition, the dry air sent from a dry air source is supplied to the front of a door for operation 7 through a pipe for air shower 6 to form a dry air shower 12 and thus the strainment of an atmospheric air into the vacuum chamber 5 is prevented.

17. 发明专利

JPH0455072A VACUUM WORKING DEVICE 失效
公开(公告)号：JPH0455072A
公开(公告)日：1992-02-21
申请号：JP16530690
申请日：1990-06-22
申请人： MITSUBISHI ELECTRIC CORP
发明人： WATABE YOSHIO
IPC分类号： B23K15/06
摘要： PURPOSE:To reduce the size over the entire part of the device and the cost thereof by providing a 2nd flow rate regulating valve which is disposed to supply a dehumidified gas to a working chamber and has the capacity larger than the capacity of a 1st flow rate regulating valve. CONSTITUTION:A work is housed in the working chamber 9 and a vacuum state is maintained. The dehumidified gas is stored via the 1st flow rate regulating valve 41 in a tank 7 in order to be supplied to the working chamber 9. The 2nd flow rate regulating valve 42 which is disposed to supply the dehumidified gas to the working chamber 9 and has the capacity larger than the capacity of the 1st flow rate regulating valve 41 is provided. Thereby, the tank capacity is reduced.

18. 发明专利

JPH03268880A ELECTRON BEAM MACHINING MACHINE 失效
公开(公告)号：JPH03268880A
公开(公告)日：1991-11-29
申请号：JP6755190
申请日：1990-03-16
申请人： MITSUBISHI ELECTRIC CORP
发明人： WATABE YOSHIO
IPC分类号： B23K15/00 , B23K15/06
摘要： PURPOSE:To maintain an electron gun without breaking a vacuum in a machining chamber having huge capacity by opening a machining chamber cathode exchanging door and a cathode exchanging door of a press plate part of the electron gun and communicating only the electron gun part with the air to carry out maintenance. CONSTITUTION:The electron gun 5 is moved to the front of a through port 18 by a three-dimensional moving device 7 and presses the press plate part 14 against a gasket part 19 fitted on the machining chamber inner wall surface around the through port 18. In this stake, leak valves 11 and 17 are opened and the air is introduced into the inside of the electron gun 5 and the through port 18. Afterward, the machining chamber cathode exchanging door 16 and the cathode exchanging door 15 are opened and a cathode 13 in the electron gun 5 is exchanged. After exchange work is completed, the cathode exchanging door 15 is closed and the leak valve 11 is closed and an electron gun exhaust system 10 is operated and when the specified degree of vacuum is attained, an electron gun high vacuum evacuating pump 8 is operated and the electron gun 5 inside is evacuated to a high vacuum.

19. 实用新型

JPH0395181U 失效
公开(公告)号：JPH0395181U
公开(公告)日：1991-09-27
申请号：JP98990
申请日：1990-01-10
IPC分类号： B23K15/06 , C21D1/09

20. 发明专利

JPH0359791B2 失效
公开(公告)号：JPH0359791B2
公开(公告)日：1991-09-11
申请号：JP11025285
申请日：1985-05-24
申请人： MITSUBISHI ELECTRIC CORP
发明人： YABUNAKA FUMIHARU , YOSHIDA KAZUO
IPC分类号： B23K15/06 , B23K15/00

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