专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH08224667A HIGH-SPEED GAS-SHIELDED METAL-ARC WELDING DEVICE AND METHOD THEREFOR 失效
公开(公告)号：JPH08224667A
公开(公告)日：1996-09-03
申请号：JP5820095
申请日：1995-02-23
申请人： NIPPON STEEL CORP , MITSUBISHI HEAVY IND LTD
发明人： KONO TAKAYUKI , KODAMA KATSU , KOJIMA KAZUHIRO , KITAMURA YUKIYOSHI , HORII YUKIHIKO , KUBOTA HARUTOSHI , KAMATA MASAO
IPC分类号： B23K9/16 , B23K9/02 , B23K9/073 , B23K9/173 , B23K9/29
摘要： PURPOSE: To carry out a high-speed fillet welding by arranging a twin wire welding torch in which two wires are electrically insulated and another torch with a succeeding wire and providing three welding wires with an independent power source and a wire feeding means. CONSTITUTION: In a gas shielded metal-arc welding device of a two torches and three wires system in which welding wires 1, 2, 3 are used as consumable electrodes, the twin wire welding torch 4 which feeds a preceding wire 1 and an intermediate wire 2 to power feeding tips 10, 11 is arranged in a welding direction and in the front of another welding torch 5 having a succeeding wire 3. The preceding wire 1 and the intermediate wire 2 are electrically insulated, the three welding wires 10, 11, 12 are respectively provided with an independent power source and a wire feeding means, and a shield gas is supplied to a welding arc part through pipes 13, 14 arranged in the front and rear of welding. Thus, since the welding current is distributed into the three wires, the arc power per one wire is suppressed, and the retreat of a welding pool is prevented to enable the high-speed fillet welding.

2. 发明专利

JPH08103824A WIRE HEATING METHOD SUPERIOR IN BENDING WORKABILITY 失效
公开(公告)号：JPH08103824A
公开(公告)日：1996-04-23
申请号：JP20113995
申请日：1995-08-07
申请人： NIPPON STEEL CORP
发明人： KASUYA TADASHI , KOJIMA KAZUHIRO , HORII YUKIHIKO
IPC分类号： C21D8/02 , B21D11/20 , C22C38/00 , C22C38/12 , C22C38/52 , C22C38/54
摘要： PURPOSE: To provide a wire heating method that 15 superior in bending workability with a steel sheet heated. CONSTITUTION: The ratio of the yield strength of a steel at a certain temp. to that of a steel at a room temp. is controlled within a prescribed range; in addition, as a wire heating method, the highest attainable temp. is set from 600 to 1,100 deg.C; and then, water cooling is commenced immediately after or at 400 deg.C or above and stopped within the range of 200 deg.C or below to the room temp.

3. 发明专利

JPH07266051A GAS SHIELDED ARC WELDING TORCH 失效
公开(公告)号：JPH07266051A
公开(公告)日：1995-10-17
申请号：JP7780094
申请日：1994-03-25
申请人： NIPPON STEEL CORP
发明人： KITAMURA YUKIYOSHI , HORII YUKIHIKO
IPC分类号： B23K9/29
摘要： PURPOSE:To provide a gas shielded arc welding torch of the MAG welding method capable of forming a defectless welding bead by using two wires in high speed fillet welding, high current welding, etc. CONSTITUTION:In a gas shielded arc welding torch by which twin arcs are allowed to generate by feeding two consumable electrode wires 1a and 1b, two shielded gas holes 10a and 10b in a position where they are opposed to wire holes 8a and 8b, a wire hole on the upper part of a gas hole, and a shielded gas introducing hole 11 piercing the gas hole, are provided. Further, an outer cover 3 is provided in the intermediate part of a welding torch main body to make a dual pipe construction. Projections 14a and 14b with a height 0.4 to 0.9 times the gap of a cooling part, are provided on this intermediate shaft 4. Consequently, there is no generation of a blowhole, etc., a satisfactory bead appearance can be attained, maintaining a stable arc phenomenon, and the improvements of welding quality and work efficiency, and a cost reduction are possible.

4. 发明专利

JPH071144A WELDING TORCH 失效
公开(公告)号：JPH071144A
公开(公告)日：1995-01-06
申请号：JP14809293
申请日：1993-06-18
申请人： NIPPON STEEL CORP
发明人： KITAMURA YUKIYOSHI , TOSHIMA SADAO , HORII YUKIHIKO
IPC分类号： B23K9/26 , B23K9/29
摘要： PURPOSE:To provide a twin wire welding torch and a power supply chip in order to obtain a high speed fillet welding or a wide bead with high speed welding. CONSTITUTION:A longitudinal section of lower part of a welding torch 2 is made in a reverse L shape, and a rectangular power supply chip 5 having two holes 8, 8' on the leg part is attached. Further, the lower part longitudinal section of the welding torch 12 is made in a rectangular shape, and two supply chips 15, 15' are respectively and individually attached in the lower end long side direction. Further, shield gas tube 6 having a radius of curvature is attached on one hand side of the welding torch or on opposing both sides of it.

5. 发明专利

JPH06238437A HIGH SPEED HORIZONTAL FILLET WELDING 失效
公开(公告)号：JPH06238437A
公开(公告)日：1994-08-30
申请号：JP5325293
申请日：1993-02-19
申请人： NIPPON STEEL CORP
发明人： KITAMURA YUKIYOSHI , TOSHIMA SADAO , HORII YUKIHIKO
IPC分类号： B23K9/02 , B23K9/173
摘要： PURPOSE:To improve productivity and welding efficiency by feeding both comsuable electrode wires to a power feeding tip by one torch in a gas shielded arc welding. CONSTITUTION:Two comsuable electrode wires 2, 3 is feeded to a power feeding tip by one welding torch 6, generating twin arc in gas shield. The intervai between a preceding wire 2 and succeeding wire 3 is 5-15mm, the targeting position of the preceding wire 2 is near the abutting part between a vertical plate and horizontal plate. The targeting position of the succeeding wire 3 is 1-4mm away from a vertical plate at right angle to welding direction, subjecting to a twin arc welding with welding current of >=200A. By executing the twin arc gas shielded horizontal fillet welding in this way, the welding is done at the speed of close 1.5 times as of conventional one, improving welding efficiency without increasing equipment.

6. 发明专利

JPH05337651A 失效
公开(公告)号：JPH05337651A
公开(公告)日：1993-12-21
申请号：JP1731493
申请日：1993-02-04
申请人： NIPPON STEEL CORP , HITACHI SHIPBUILDING ENG CO
发明人： OHAMA NOBUYUKI , OYAMA SHIGEO , SHINADA KOICHI , HORII YUKIHIKO , MOTOMATSU RYUICHI , KITAMURA YUKIYOSHI , MIYAZAKI TATEO , TAKEUCHI MAKOTO
IPC分类号： B23K9/18 , B23K35/362
摘要： PURPOSE:To attain the high speed of welding and further, to form front and back beads having a satisfactory shape without cracking by making the wire diameter and an electric current of each electrode, and the distance between electrodes to the specified quantities by using the specified number of electrodes. CONSTITUTION:When the wire diameter of a first electrode and the wire diameter of second-fourth electrodes are made to 4.8mm and 6.4mm, respectively by using four electrodes, further, the electric currents of the first, second, third and fourth electrodes, the welding speed and the thickness of steels to be welded are made to I1, I2, I3 and I4 (A), Scm/min and (t)mm respectively, 60

7. 发明专利

JPH05293664A 失效
公开(公告)号：JPH05293664A
公开(公告)日：1993-11-09
申请号：JP10494992
申请日：1992-04-23
申请人： NIPPON STEEL CORP
发明人： TOSHIMA SADAO , KITAMURA YUKIYOSHI , HORII YUKIHIKO
IPC分类号： B23K9/073 , B23K9/173 , B23K9/29
摘要： PURPOSE:To perform multiple electrode gas shielded arc welding of high quality with high efficiency by discharging shielding gas below from through-holes of a ceramics plate to protect arc atmospheres of the torch main body tips from the air. CONSTITUTION:Torch main bodies 2 and 2 and shielding cups 3 are made of a copper alloy and have cooling fluid paths 4 inside and the shielding cups 3 have an opening 5 on the work 11 side. The ceramics plate 6 attachable and detachable provided with plural through holes 10 for discharging shielding gas and >= two through holes for fitting the torch main bodies vertically to the plate surface on an inside ceiling part of the opposite side to the work 11 and a torch holding block 7 having airtightness made of insulating material above the ceiling part are provided. The shielding gas 8 is discharged below from the through-holes 10 of the ceramics plate 6, and the arc 9 atmospheres of the torch main body 2 tips and a high temperature part of a molten pool and a weld bead 12 can be protected from the air by the shielding gap of laminar flow on the shielding cup opening.

8. 发明专利

JPH05220574A GAS SHIELDED TORCH FOR MULTIPLE ELECTRODE ARC WELDING 失效
公开(公告)号：JPH05220574A
公开(公告)日：1993-08-31
申请号：JP5663492
申请日：1992-02-10
申请人： NIPPON STEEL CORP
发明人： TOSHIMA SADAO , KITAMURA YUKIYOSHI , HORII YUKIHIKO
IPC分类号： B23K9/173 , B23K9/29
摘要： PURPOSE:To perform economical multiple electrode arc welding of high quality by providing plural torch fitting holes and many gas discharge holes on a ceiling plate of a shielding cup and using these in combination of plural torches having contact tip tilt pedestals. CONSTITUTION:Both torch main bodies 1 and the shielding cup 2 are made of a copper alloy and have paths 3 of cooling fluid. The plural fitting holes 13 for the torch main bodies and the many shielding gas discharge holes are provided on the ceramics ceiling plate 5 of the shielding cup 2. A torch holding block 6 made of insulating material incorporates a shielding gas path 7 and is fitted into the upper part of the cup 2. The contact tip tilt pedestals 14 are fitted on the torch main body 1 tips. The torch main bodies 1 are penetrated and fitted into the torch holding block 6 and the shielding cup 2 and connected to a power source and a gas supply source. A tilt angle of the plural tip tilt pedestals 14 and wire extension are adjusted and arcs are started. High efficiency is attained with multiple electrodes, the quantity of gas consumed is reduced and the quantities of spatters stuck also can be extremely reduced.

9. 发明专利

JPH04319075A INSIDE SEAM WELDING METHOD FOR HIGH ALLOY CLAD STEEL PIPE 失效
公开(公告)号：JPH04319075A
公开(公告)日：1992-11-10
申请号：JP8247491
申请日：1991-04-15
申请人： NIPPON STEEL CORP
发明人： KITAMURA YUKIYOSHI , TOSHIMA SADAO , HORII YUKIHIKO , OGATA YOSHINORI
IPC分类号： B23K9/025 , B23K9/173 , B23K9/23 , B23K9/32
摘要： PURPOSE:To provide the MIG welding method with high efficiency without generation of an oxide film and spatter sticking on the bead surface in inside welding of a high alloy clad steel pipe according to this invention. CONSTITUTION:In multiple electrode MIG multilayer one-run inside seam welding of the high alloy clad steel pipe, conventional MIG welding is performed from a first layer to a layer right before a last electrode, welding type flux is dispersed extending over 2-8mm thickness and 60mm width with the bead as a center right after the layer bead right before the last electrode is formed, then, MIG welding of a last layer is performed, the last high alloy bead surface is covered by slag and the high alloy weld bead without generation of the oxide film and spatter sticking on the bead surface is obtained even in high- speed welding.

10. 发明专利

JPH04253595A SUBMERGED ARC WELDING METHOD FOR CR-MO LOW-ALLOY STEEL 失效
公开(公告)号：JPH04253595A
公开(公告)日：1992-09-09
申请号：JP3338991
申请日：1991-02-04
申请人： NIPPON STEEL CORP
发明人： SUEDA AKITOMO , MOTOMATSU RYUICHI , HORII YUKIHIKO , ICHIKAWA KAZUTOSHI
IPC分类号： B23K9/18 , B23K9/23 , B23K35/30 , B23K35/362
摘要： PURPOSE:To obtain a good-quality weld zone by improving the roughness after short-time SR, the embrittlement characteristic and hydrogen embrittlement characteristic during use and the creep rupture strength after long-term SR. CONSTITUTION:Welding is executed by combining a wire contg. 0.05 to 0.09% C, 0.01 to 0.10% Si, 0.40 to 0.90% Mn, 1.80 to 3.80% Cr, 0.80 to 1.30% Mo, 0.25 to 0.4% V, 0.005 to 0.o50% Nb, and further

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式