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1. 发明专利

JP2500158B2 失效
公开(公告)号：JP2500158B2
公开(公告)日：1996-05-29
申请号：JP14287391
申请日：1991-06-14
申请人： SUMITOMO METAL IND
发明人： FUKADA YASUTO , KASHIMOTO FUMIO
IPC分类号： B23K9/00 , B23K20/00

2. 发明专利

JPH071011A MANDREL BAR FOR MANUFACTURING SEAMLESS TUBE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH071011A
公开(公告)日：1995-01-06
申请号：JP14315693
申请日：1993-06-15
申请人： SUMITOMO METAL IND
发明人： FUKADA YASUTO , KASHIMOTO FUMIO , KO TAKAO , HAMADA MASAHIKO
IPC分类号： B21B25/00 , B23K20/00
摘要： PURPOSE:To unnecessitate severe preheating and post heating control and to remarkably improve working environment. CONSTITUTION:This mandrel bar is defined as a mandrel bar for manufacturing a seamless tube having a diffusion joined part in at least one place. Short joining base stocks 1 for a mandrel bar whose surface roughness of end faces are machined to =60sec while adjusting them so that pressure force which is applied to the joint face is 0.5-3kgf/mm .

3. 发明专利

JPH06277858A METHOD FOR JOINING CYLINDRICAL MEMBER AND PLANAR MEMBER 失效
公开(公告)号：JPH06277858A
公开(公告)日：1994-10-04
申请号：JP9709393
申请日：1993-03-30
申请人： SUMITOMO METAL IND
发明人： SASAKI CHIAKI , KASHIMOTO FUMIO , KISHI SHINSUKE
IPC分类号： B23K20/00 , H05B6/10
摘要： PURPOSE:To rapidly and easily join a planar member to the end face of a cylindrical member. CONSTITUTION:The planar member 2 is superposed on the end face of the cylindrical member 1 with an insert material held therebetween. The superposed part is heated to the m.p. of the insert material or above by a first high-frequency induction heating coil 5 enclosing the outside surface at the end of the cylindrical member 1 and a second high-frequency induction heating coil 6 disposed opposite to the surface of the planar member 2 along the inside circumference of the cylindrical member 1. The inside circumferential part and outside circumferential part of the superposed parts are uniformly heated even if the superposed parts are heated from the outer side.

4. 发明专利

JPH05220585A JOINING METHOD OF STEEL 失效
公开(公告)号：JPH05220585A
公开(公告)日：1993-08-31
申请号：JP14287391
申请日：1991-06-14
申请人： SUMITOMO METAL IND
发明人： FUKADA YASUTO , KASHIMOTO FUMIO
IPC分类号： B23K9/00 , B23K20/00
摘要： PURPOSE:To improve the strength of the part to be joined by executing the arc welding to the part to be joined after an insert metal of the amorphous metal whose melting point is lower than that of the members to be joined is inserted between the surfaces to be joined and the liquid phase diffusion joining is executed. CONSTITUTION:An insert metal 3 of the amorphous metal whose melting point is lower than that of members to be joined 1, 2 is inserted between the surfaces to be joined of the members to be joined 1, 2 heated and pressed to execute the liquid phase diffusion joining of the members to be welded 1, 2. After joining the arc welding is executed to the part to be joined. The misalignment A of the part to be joined is removed and the fatigue strength is improved thereby. The heat affected zone 6 by the arc welding is generated in the vicinity of the weld metal 5, and the heat affected zone 4 which is formed by the liquid phase diffusion joining and whose toughness is low recovers its original higher toughness due to the temper effect.

5. 发明专利

JPH0325294A SEALING OF END OF HEAT PIPE 失效
公开(公告)号：JPH0325294A
公开(公告)日：1991-02-04
申请号：JP15725489
申请日：1989-06-20
申请人： SUMITOMO METAL IND
发明人： KASHIMOTO FUMIO , KOMIZO YUICHI , IZUMI YUUSUKE
IPC分类号： F28D15/02
摘要： PURPOSE:To permit the sealing of the end of a heat pipe efficiently and surely with the small number of parts by a method wherein the end of the pipe is crushed to come into contact with it with a specified insert member closely and, thereafter, the end of the pipe is heated to melt only the insert member. CONSTITUTION:An insert member 8, containing one or two kinds or more of 20 weight % or less of Cr, 15% or less of P, 8% or less of Si and 5% or less of B, having balance consisting of Ni substantially, having a melting point lower than 1100 deg.C and provided with the thickness of 50-150m, is inserted into the end of a tube material 2 for a heat pipe. Subsequently, the end of the pipe is crushed to come into contact with it with the insert member 8 closely and, thereafter, the end of the pipe is heated to melt only the insert member 8. Pressing of the pipe end to contact the pipe end with the insert member 8 closely and sufficiently is effected by a necessary crushing force obtained properly based on the thickness, material and the like of the pipe material. According to this method, the sealing of the pipe end may be effected simply and surely with a low cost.

6. 发明专利

JPH02241677A METHOD FOR JOINING BAR MATERIALS 失效
公开(公告)号：JPH02241677A
公开(公告)日：1990-09-26
申请号：JP6019289
申请日：1989-03-13
申请人： SUMITOMO METAL IND
发明人： KISHI SHINSUKE , MIYAZAKI JUNICHI , KASHIMOTO FUMIO
IPC分类号： B23K20/00
摘要： PURPOSE:To easily and surely join bar materials by inserting insert material between the joining surfaces thereof, loading initial load in the axial direction of the bar materials with respect to the joining surfaces to give strain to the insert material and pressing these materials under heating at the time of joining the bar materials. CONSTITUTION:Reinforcing bars which are materials 4 to be joined are set on clamp mechanisms 3 and amorphous metallic material is inserted between the joining surfaces as the insert material 5 and the reinforcing bars are fixed by tightening a fixing bolt 8. A head 2 is moved by a hydraulic jack 6 so that the prescribed load is applied in the axial direction of the reinforcing bars and the initial load is loaded. The size of load is measured and controlled by a load cell 11. The vicinity of a joining part is heated to the prescribed temperature by intense reducing flame gas by using a ring burner 72 and the materials to be joined are pressed plural times. After heating is finished, the burner is kept away. When a high-frequency heating coil is used as a heating method, nonoxidizing gas is blown in a seal box to carry out heating. By this method, joining conditions are controlled and the bar materials are joined easily and surely.

7. 发明专利

JPS62227595A THIN SOLDER STRIP FOR BRAZING 失效
公开(公告)号：JPS62227595A
公开(公告)日：1987-10-06
申请号：JP7038486
申请日：1986-03-28
申请人： SUMITOMO METAL IND
发明人： TOMITA TOSHIRO , YAMAUCHI NOBUYUKI , KASHIMOTO FUMIO , TARUYA YOSHIO , KITANO KENJI
IPC分类号： B23K35/30 , C22C38/00
摘要： PURPOSE:To contrive the corrosion resistance of the joint part of a stainless steel, Ni alloy, etc., by incorporating specific weight % of Cr, Ni, B, and Si, Mn, etc., into a component compsn. and consisting the balance substantially of an Fe component. CONSTITUTION:The component compsn. of a brazing filler metal for joining is composed of

8. 发明专利

JPS6297784A BUTT JOINING METHOD FOR PIPE 失效
公开(公告)号：JPS6297784A
公开(公告)日：1987-05-07
申请号：JP23914285
申请日：1985-10-24
申请人： SUMITOMO METAL IND
发明人： KASHIMOTO FUMIO , YAMAUCHI NOBUYUKI
IPC分类号： B23K20/00
摘要： PURPOSE:To increase a joining strength and work efficiency by abutting two pipes to be joined by pinching an inserting material, by pinching them respectively with a pair of combined clamp mechanism and by joining with diffusion by heating the vicinity of the pipe joining part. CONSTITUTION:A pipe A, B is respectively pinched by a pair of clamp mechanism a, b which is combined via a linking body 1 by abutting the pipe end in the state of pinching an inserting material 3 between two pieces of pipes A, B to be joined. The vicinity of the pipe joining part 5 is then heated by the heating device 4 composed of a high frequency coil, etc. In this case, an amorphous metallic foil, etc. are used for the inserting material 3 and the joining part 5 is shielded via a shielding cover 19 and taken to be in vacuum state or protecting gas atmosphere. The heating device is miniaturized, the work on-site is facilitated and the joining part 5 is subjected to diffused junction. Consequently the joining strength and work efficiency can be increased.

9. 发明专利

JPS60199595A WELDING WIRE 失效
公开(公告)号：JPS60199595A
公开(公告)日：1985-10-09
申请号：JP5479184
申请日：1984-03-21
申请人： SUMITOMO METAL IND
发明人： INABA HIROTSUGU , YAMAUCHI NOBUYUKI , KASHIMOTO FUMIO
IPC分类号： B23K35/30
摘要： PURPOSE:To prevent generation of a low temp. crack in a weld zone in the stage of welding steel materials by means of a solid wire by using the solid wire contg. a specific amt. of Zn. CONSTITUTION:A solid wire incorporated therein with 0.2-5.0wt% Zn which is a metal having a high vapor pressure is used for welding of steel materials. The Zn in the wire evaporates in the arc space during welding and the expulsion of hydrogen from the external air and the welding materials and the intrusion of H2 into the weld zone are prevented by the high vapor pressure thereof and therefore the low temp. crack in the weld zone occurring in the content of hydrogen is prevented.

10. 发明专利

JPS58168493A PRODUCTION OF WELDED STEEL PIPE OF LARGE DIAMETER 失效
公开(公告)号：JPS58168493A
公开(公告)日：1983-10-04
申请号：JP5243882
申请日：1982-03-30
申请人： SUMITOMO METAL IND
发明人： INABA HIROTSUGU , YAMAUCHI NOBUYUKI , KASHIMOTO FUMIO
IPC分类号： B21C37/08 , B23K9/025 , B23K9/235 , B23K20/00
摘要： PURPOSE:To improve the productivity of a welded steel pipe of large diameter having good quality and to improve the productivity to reduce cost thereof by a simple method, by roughening the end faces of a blank steel plate, and joining both end faces by O-pressing by means of an Al foil having the limited thickness then subjecting the steel plate to piping welding. CONSTITUTION:A blank steel plate 1 is beveled, whereafter end faces 51, 52 are blasted by shot blasting or the like to rough the surfaces. Al foil 7 of 0.01-0.1mm. thickness is pressed and adhered to one end face 51 by means of a roll 8. Both end faces 51, 52 of such plate 1 are joined to each other by O-pressing after C- pressing and U-pressing to press stick the foil 7 to the joint surfaces. In this state, the end faces are subjected directly to pipe making and welding without going through the stage for tack welding. If the thickness of said foil 7 is 0.1mm., a large amt. of Al remains in the weld metal in the stage of pipe welding and there is possibility of a welding defect; therefore, the thickness is limited in the above-mentioned range.

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