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1. 发明专利

JPH01266962A JOINING METHOD FOR TUBE AND MOLDED TOP PLATE IN FLUID FILLING DEVICE 失效
公开(公告)号：JPH01266962A
公开(公告)日：1989-10-24
申请号：JP9507388
申请日：1988-04-18
申请人： SNOW BRAND MILK PROD CO LTD , TOYO BUREIZU KK
发明人： YASUDA NAOMICHI , SAKAI KATSUJI , SUZUKI SHOGO
IPC分类号： B23K1/18
摘要： PURPOSE:To form a joining part causing no corrosion by press-fitting a tube into the punched hole of a molded top plate, projecting the upper edge thereof a little from the molded top plate and heating by coating many nickel solders on the joining part of the both. CONSTITUTION:In case of joining a molded top plate 1 and tube 2 of a fluid filling device these are degreased and cleaned in advance and the tube 2 is subjected to a reducing heat treatment. Thereafter, the tube 2 is press-fitted to the degree of slightly projecting from the molded top plate 1 at its upper edge into the punched hole of the molded top plate 1 which is slightly larger than that. A nickel solder is then coated on the joining part of the tube 2 and plate 1. In such case, this coating amt. is taken in several times the volume of the gap of the joining part and yet the coating ratio of the joining face A of the upper face and the joining face B of the lower face of the plate 1 is taken about 3:7-4:6. This assembly member is brought down, the pressing plate 3 of the top plate 1 is set, heated at more than the melting temp. of a brazing filler metal in a vacuum furnace and the tube 2 is joined by the brazing filler metal to the molded top plate 1.

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