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

JPH05329651A WELD FUME COLLECTING DEVICE 失效
公开(公告)号：JPH05329651A
公开(公告)日：1993-12-14
申请号：JP16005292
申请日：1992-05-28
申请人： KOBE STEEL LTD , NIPPON SEIMITSU KK
发明人： NAKANO YOSHIAKI , SATO MASAHARU , IMAOKA SUSUMU , SAEKI MASARU
IPC分类号： B01D46/24 , B08B5/04 , B23K9/32
摘要： PURPOSE:To provide the weld fume collecting device using shielding gas which is used easily and can be miniaturized. CONSTITUTION:A suction hood 6 to collect fumes to be scattered at a welding place is fitted to a torch 5 and the fumes are collected by the fume collecting device 3 via a suction hose 7 connected to the suction hood 6. The fume collecting device 3 is then provide with a suction part and an ejection part, the suction part has a first chamber 15 and a second chamber 20 divided by a partition wall 21 having a communication hole 22, a filler 17 is arranged freely exchangeably to the first chamber 15 so as to form space to cover the communication hole 22, the suction hose 7 is connected to the opposite side space to the communication hole 22 for the filter 17, the second chamber 20 is formed as suction space sucked by a blower 24 and the ejection part is provided with a tank 27 filled up with the shielding gas. In addition, a nozzle 30 to eject the shielding gas in the tank 27 toward the inside of the communication hole 22 pulsatively at a specified period of time is provided on the second chamber 20.

2. 发明专利

JP2898821B2 失效
公开(公告)号：JP2898821B2
公开(公告)日：1999-06-02
申请号：JP16005292
申请日：1992-05-28
申请人： KOBE SEIKOSHO KK , NIPPON SEIMITSU KK
发明人： NAKANO YOSHIAKI , SATO MASAHARU , IMAOKA SUSUMU , SAEKI MASARU
IPC分类号： B01D46/24 , B08B5/04 , B23K9/32

3. 发明专利

JP2002273568A OVERHEAD WELDING METHOD 失效
公开(公告)号：JP2002273568A
公开(公告)日：2002-09-25
申请号：JP2001076997
申请日：2001-03-16
申请人： KAWADA KOGYO KK , KOBE STEEL LTD
发明人： YUDA MAKOTO , KURIYAMA SUSUMU , SATO MASAHARU , UCHIYAMA HAJIME , YAMAMOTO AKIRA
IPC分类号： B23K9/173 , B23K9/00 , B23K9/02 , B23K9/095 , B23K37/06
摘要： PROBLEM TO BE SOLVED: To provide an overhead welding method for manufacturing a welded joint free from weld defects such as dropping-down of a weld metal, slag inclusion and lack of penetration, in order to provide a building excellent in a seismic performance. SOLUTION: Firstly, a backing strip 4 is attached so that a curving surface positions from the back side of a root part of a column 3 and a lower flange 2a of a beam 2, and the recessed part of the root part is sealing-welded with an automatic welding equipment 1. Thereafter, the regular welding is performed. In the regular welding process, to the welding part except a starting and a completing treating portions of the welded joint, a gas shield arc welding is performed with CO2 gas in a torch angle at 5-20 deg. angle of sweep back to the welding direction in both of a going and a returning way. In such a case, as a welding material, a basic flux-cored wire having >=40 sec remelt-down time of deposited metal portion in the whole deposited metal joint, is used. Further, in the primary layer of the regular welding, the welding is performed under welding conditions (welding current, welding speed) set so that a theoretical throat depth after welding, falls within the range of 1.5-4.0 mm.

4. 发明专利

JP2001179452A ONE SIDE MAG WELDING METHOD 失效
公开(公告)号：JP2001179452A
公开(公告)日：2001-07-03
申请号：JP36005499
申请日：1999-12-17
申请人： KOBE STEEL LTD
发明人： SATO MASAHARU
IPC分类号： B23K9/173 , B23K9/022 , B23K9/035 , B23K9/095 , B23K33/00
摘要： PROBLEM TO BE SOLVED: To provide an one side MAG welding method by a weaving pattern capable of obtaining a stable arc having a reduced spatter generating quantity and forming a stable back bead by sufficiently fusing a groove bottom part when welding an initial layer in one side face welding. SOLUTION: In the one side MAG welding method in which a backing material 5 is arranged to the rear face of a groove 2 of base materials 1 arranged with a V type groove 2 and butted on each other, a groove 2 surface side of the base material 1 is welded while weaving a welding torch 4 to supply welding wire 3, an initial layer is welded while torch weaving is conducted under the condition consisting of a sweepback angle θ of the welding torch 4 set to more than 5 deg. and less than 30 deg. and a plane angle α, which is formed between a weaving plane W depicted by the tip of a welding wire 3 in weaving and the rear face and is set to more than 45 deg. and less than 80 deg..

5. 发明专利

JP2000052040A UPWARD.STANDING POSTURE WELDING 失效
公开(公告)号：JP2000052040A
公开(公告)日：2000-02-22
申请号：JP22644398
申请日：1998-08-11
申请人： KOBE STEEL LTD
发明人： SATO MASAHARU , MORIMOTO TOMOKAZU , KAWAMATA YOSHIKAZU
IPC分类号： B23K9/16 , B23K9/00 , B23K9/02 , B23K35/368
摘要： PROBLEM TO BE SOLVED: To provide an upward.standing posture welding method wherein an improvement of welding efficiency, a prevention of welding failure such as a bad fusion and the like, and simplification of a welding device can be achieved for welding the members in an upward welding posture, of a welding posture in which an upward posture and a standing posture are continued in arcuate, and each welding posture of the standing welding posture or each of welding posture is continued. SOLUTION: This method has process wherein as least an 'uranami' welding bead, namely a penetration bead, of a first layer is formed by a gas shield arc welding method, and then a process wherein a copper patch having a concave cross section is abutted.slid on a groove face against a remaining groove so as to carry out a gas shield arc welding under a condition that a contained volume of a dross producing agent in flux against the total weight of a welding wire is at wt.% between 0.3 and 1.0, flux weigh against the total weight of a welding wire is at wt.% between 15 and 20, and a welding current is between 180 and 330A.

6. 发明专利

JPH10258361A HORIZONTAL POSITION WELDING METHOD 失效
公开(公告)号：JPH10258361A
公开(公告)日：1998-09-29
申请号：JP6469097
申请日：1997-03-18
申请人： KOBE STEEL LTD
发明人： SATO MASAHARU , IMAOKA SUSUMU
IPC分类号： B23K33/00 , B23K9/02 , B23K9/12 , B23K37/06
摘要： PROBLEM TO BE SOLVED: To provide the horizontal position MAG welding method capable of welding with high welding efficiently and low costs and obtaining an excellent bead appearance. SOLUTION: In a strap 4, a taper is provided in the corner part wherein the side surface of the welding progressive direction side and a lower plate come into contact and a recessed part is formed in the upper part facing a groove. This strap 4 is pressed to the upper end of the lower plate 2 so that the taper faces in the welding direction and arranged, a welding wire 5 is fed within the groove 3 from the top of the strap 4, and the strap 4 is slid in parallel along the welding direction as shown with an arrow to weld. At this time, the strap 4 is slid on the surface of the lower plate 2 in accordance with the welding progress while opening the upper half part of the side welding the groove. By this way, since welding is executed while the strap 4 always supports the molten pond, even though the upper half part of the side welding the groove is not covered with a copper plate or the like as the conventional way, the molten metal is prevented to overflow, whereby welding beads having the excellent appearance are obtained.

7. 发明专利

JPH10175067A SELF-SHIELDED ARC WELDING METHOD 失效
公开(公告)号：JPH10175067A
公开(公告)日：1998-06-30
申请号：JP33594696
申请日：1996-12-16
申请人： KOBE STEEL LTD
发明人： SATO MASAHARU , ITO TAKAAKI , KOYAMA TAKESHI
IPC分类号： B23K9/12 , B23K9/00
摘要： PROBLEM TO BE SOLVED: To prevent the generation of welding defects as well as the deterioration of performance of a joint and to contrive the application to the welding of a sheet, in performing positive polarity arc welding using a small diameter self-shielded welding wire, by supplying a specific welding current, increasing/ decreasing/varying a wire feeding speed in accordance with a deviation value so as to eliminate a deviation between the detected value of a welding voltage and a set voltage value, and thereby maintaining a nearly constant arc length. SOLUTION: If a deviation between the detected value of a welding voltage and a set voltage is within the tolerance ΔE set in the range of ΔE=±0.5 to ±5.0(v), welding is performed with the welding voltage deviation regarded as zero; the arc length is thereby controlled, preventing instability of the arc. In addition, if the welding wire is short-circuited with a base stock, a short- circuit current is supplied in the range of 200 to 550A as the welding current, quickly eliminating the short-circuit state and stabilizing the generation of arc.

8. 发明专利

JPH10118770A ELECTROGAS ARC WELDING METHOD FOR STEEL PLATE 失效
公开(公告)号：JPH10118770A
公开(公告)日：1998-05-12
申请号：JP27111096
申请日：1996-10-14
申请人： KOBE STEEL LTD
发明人： SATO MASAHARU , MORIMOTO TOMOKAZU
IPC分类号： B23K9/173 , B23K9/02 , B23K9/12 , B23K33/00 , B23K37/06
摘要： PROBLEM TO BE SOLVED: To provide an electrogas arc welding method of steel plate which is applied to the welding of a T-joint, capable of improving the shape of face and back beads, and capable of obtaining excellent penetration depth. SOLUTION: An end face of a second steel plate 22 having the thickness T of >=15mm is directed toward the surface of a first steel plate 21, and a strap is placed on a face side and a back side of a T-joint in which the groove angle θ is 0 to 40 deg. and the root gap is 3 to 15mm, and the groove width W on the face side is

9. 发明专利

JPH09271949A METHOD FOR PROCESSING TRAILING END PART IN ELECTROGAS ARC WELDING METHOD 失效
公开(公告)号：JPH09271949A
公开(公告)日：1997-10-21
申请号：JP8662596
申请日：1996-04-09
申请人： KOBE STEEL LTD
发明人： SATO MASAHARU , MORIMOTO TOMOKAZU
IPC分类号： B23K9/173 , B23K9/00 , B23K9/095 , B23K9/10 , B23K37/06
摘要： PROBLEM TO BE SOLVED: To provide a processing method in which a fault is prevented from being caused in a trailing end in an electrogas arc welding, namely, in which gouging in an object to be welded or generation of a shrinkage hole is prevented in the trailing end of welding without causing a blowhole or an interruption of welding, and in which an electrogas arc welding method can be applied to the connecting part of a column through type building frame. SOLUTION: At the point of time in reaching the trailing end of welding, the welding current is divided into two steps or more and lowered to the final current value. In this case, the final current value is 75% or less of the main welding current, with the decrement per step not more than 20% of the preceding current value. In addition, time is set 10 seconds or longer after the final current value is reached until the current is stopped. Further, when ceramics, copper or copper alloy is used as a tab material for the trailing end, the decrement of the welding current can be expanded to not more than 35%.

10. 发明专利

JPH09206941A CO2 GAS SHIELDED PULSED ARC WELDING METHOD 失效
公开(公告)号：JPH09206941A
公开(公告)日：1997-08-12
申请号：JP1299096
申请日：1996-01-29
申请人： KOBE STEEL LTD
发明人： SATO MASAHARU , ITO TAKAAKI , KOYAMA TAKESHI
IPC分类号： B23K9/173 , B23K9/073 , B23K9/09 , B23K9/12 , H02M9/00
摘要： PROBLEM TO BE SOLVED: To enable welding with reduced generation of spatters by increasingly and decreasingly controlling both pulsed current period and pulse frequency, keeping an arc length nearly constant and thereby stably carrying out the transfer of one pulse one droplet without deviation from the area of droplet transfer. SOLUTION: With comparison made between the reference value and the detected value of an average welding current, and on the basis of its difference in the current, the reference value of the pulsed current period is corrected, and a pulsed current period for a change in the wire extension from the reference length is determined. In addition, a pulsed voltage set value is determined for a change of the wire extension from the reference length by correcting a pulsed voltage reference value. When the wire extends and the length changes from the reference length, a pulsed current that brings the correctively set pulsed voltage is supplied for the correctively set pulsed current period. Then, a base current period is determined so that the preset pulsed current value may coincide with the detected pulsed current value, thereby increasingly and decreasingly controlling the pulse frequency and maintaining a constant arc length.

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