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31. 发明专利

JPH04180505A POROUS METAL PANEL AND ITS MANUFACTURE 失效
公开(公告)号：JPH04180505A
公开(公告)日：1992-06-26
申请号：JP30816190
申请日：1990-11-14
申请人： NIPPON DIA CLEVITE CO
发明人： SUZUKI SHUNSUKE , KIKUCHI HIROYOSHI , KOSUGE HIROTO
IPC分类号： E04B1/86 , B22F3/11 , B22F5/00 , B22F7/08 , B23K9/20
摘要： PURPOSE:To easily fit the obtd. porous metal panel to a bed material by providing projection to joining surface of stud-like member, generating arc between this and the porous metal body and conducting electric current to the direction intersecting orthogonally with the plate thickness direction of the porous metal body. CONSTITUTION:The stud 3 of male screw type, etc., is set to a chuck 8a in a welding gun 8 and pressed to welding position in the porous metal body 2. Voltage is impressed at between the stud 3 and the porous metal body 2 as base material and at the same time, the stud 3 is pulled up to generate the arc at between the projection 3b provided on the stud 3 and the base material 2. The arc melts the projection 3b in the stud 3 and a part in the base material 2 corresponding to the stud. After the lapse of the preset time, the current is off, the stud 3 is pressed into molten pond and welded to obtain the porous metal panel. At this time, since the current is conducted toward the direction intersecting orthogonally with the plate thickness direction of the porous metal body 2, enlargement of molten pond is little.

32. 发明专利

JPH03271447A SOUND ABSORPTION CEILING PANEL STRUCTURE AND EXECUTION METHOD THEREFOR 失效
公开(公告)号：JPH03271447A
公开(公告)日：1991-12-03
申请号：JP7307690
申请日：1990-03-22
申请人： NIPPON DIA CLEVITE CO
发明人： SUZUKI SHUNSUKE , KIKUCHI HIROYOSHI , KOSUGE HIROTO , ITO KIYOSHI
IPC分类号： E04B1/86 , E04B9/00 , E04B9/04
摘要： PURPOSE:To improve execution accuracy by installing edge bars on both long sides of a rectangular metal sound absorption panel, and making a frame of jointing margins formed all over the sound absorption panel. CONSTITUTION:For the use of a metal porous sound absorption panel 4 having a communication hole as a sound absorption ceiling panel structure 13, both of long ends of the panel 4 is made to have a minimum of 1mm as a jointing margin 16. Then, a panel frame is formed with an edge double bar 1, cut to short length and fixed to the panel 4 with an adhesive. An edge single bar 2 is used as a reinforcement body 19 for the short end of the panel 4 and made to have a minimum of 1mm as a jointing margin 16, similar to the edge double bar 1. The bar 2 is fixed to the panel 4 with a fastener 14. The aforesaid construction can contribute to the handling of the porous metal sound absorption panel 4, and the reduction of a manday for the execution thereof.

33. 发明专利

JPH03131091A RADIO WAVE ABSORBING MATERIAL 失效
公开(公告)号：JPH03131091A
公开(公告)日：1991-06-04
申请号：JP26989989
申请日：1989-10-17
申请人： NIPPON DIA CLEVITE CO
发明人： WAKIYAMA HIROO , SUZUKI SHUNSUKE , KIKUCHI HIROYOSHI , KOSUGE HIROTO
IPC分类号： H05K9/00 , H01Q17/00
摘要： PURPOSE:To obtain a material having a high efficiency and a low cost by incorporating substance powder having radio wave absorbing properties in the continuous vent pores of a sintered porous material having the pores and in which powder of aluminum or aluminum alloy is sintered. CONSTITUTION:Powder of Al or Al alloy is molded in a desired shape in a nonpressurized state, and then heated to the melting point of the powder or the vicinity of the point in a reduced atmosphere to be sintered. Ferrite 2 which is not completely filled in the continuous vent pores, i.e., air gaps of the sintered material of the porous Al or Al alloy powder having the pores and ferrite which is completely filled therewith are provided. When a radio wave is incident to the radio wave absorbing material, the incident wave 6 is brought into contact with the Al or the Al alloy, reflected by a scattering phenomenon, and the radio wave is more effectively absorbed.

34. 发明专利

JPH0372060A STEEL SHEET THICKLY PLATED WITH PB ALLOY AND ITS PRODUCTION 失效
公开(公告)号：JPH0372060A
公开(公告)日：1991-03-27
申请号：JP20877289
申请日：1989-08-11
申请人： NIPPON DIA CLEVITE CO
发明人： SUZUKI SHUNSUKE , WAKIYAMA HIROO , KIKUCHI HIROYOSHI , KOSUGE HIROTO
IPC分类号： C23C2/02 , C23C2/10
摘要： PURPOSE:To obtain the above steel sheet having such a thickness as to make the sheet usable in any environment by previously forming a specified amt. of an Ni plating layer as an underlayer on a steel sheet when a Pb alloy layer having . The sheet 1 is then washed with hot water and continuously introduced into a molten Pb alloy bath 10 to form a Pb alloy layer having >=15mum thickness. The plated sheet 1 is pulled up through a hydrogen halide atmosphere on the bath 10, cooled and coiled. Org. coating material may be applied to the surface of the Pb alloy layer.

35. 发明专利

JPH02207978A METAL MEMBERS AND JOINING METHOD THEREFOR 失效
公开(公告)号：JPH02207978A
公开(公告)日：1990-08-17
申请号：JP2737089
申请日：1989-02-08
申请人： NIPPON DIA CLEVITE CO
发明人： KIKUCHI HIROYOSHI , KOSUGE HIROTO , SUZUKI SHUNSUKE
IPC分类号： B23K11/14 , B23K11/18
摘要： PURPOSE:To firmly join the subject metal members with good appearance by immersing a projection formed on the joining surface side of a nonporous metal member in the joining surface side of a porous metal member to form a fine part, conducting electricity and generating heat in this state. CONSTITUTION:An Al plate is used as the nonporous metal member 1 and the projection 1b is formed on the joining surface 1a of the nonporous metal member 1 by press forming. In addition, a porous Al sintered plate is used as the porous metal member 2. The nonporous metal member 1 and the porous metal member 2 are placed between copper energizing electrodes 3 and 4 and the energizing electrode 3 is lowered and pressurized to press the projection 1b. The projection 1b formed on the joining surface 1a of the nonporous metal member 1 is then immersed in the joining surface 2a of the porous metal member 2 and the fine part where blowholes are reduced is formed in the vicinity of the projection 1b. Electricity is then conducted between the energizing electrode 3 and 4 and the projection 1b and the fine part in the vicinity of the projection 1b are molten locally and fused.

36. 发明专利

JPH02133997A ELECTRIC WAVE ABSORBER 失效
公开(公告)号：JPH02133997A
公开(公告)日：1990-05-23
申请号：JP28747188
申请日：1988-11-14
申请人： NIPPON DIA CLEVITE CO
发明人： SUZUKI SHUNSUKE , WAKIYAMA HIROO , KIKUCHI HIROYOSHI , KOSUGE HIROTO
IPC分类号： H05K9/00 , H01Q17/00
摘要： PURPOSE:To achieve improved electric wave absorbing properties with less weight by providing a porous Al sintered board consisting of a cladding layer of paint whose surface contains an electric wave absorbing material or an electrical conductor board directly or through an air layer at the rear surface of this sintered board. CONSTITUTION:One type or more electric wave absorbing body powder 11 selected from a magnetic material or a dielectric material is fitted to a porous Al sintered board 10 in this electric wave absorbing body. The porous Al board 10 allows an incident electromagnetic wave R to repeat irregular reflection within this sintered board and electromagnetic wave capturing effect to the electric wave absorber powder 11 to be increased. At the same time, it converts one part of electromagnetic wave scattered inside into electrical energy to allow the incident electromagnetic wave R to be absorbed. Also, an electromagnetic wave Rn which passes the porous Al sintered board 10 and whose high energy is attenuated is absorbed as an electrical energy by a metal conductor board 15 and intrudes into the porous Al sintered board 10 again. Thus, energy is absorbed completely.

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