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1. 发明专利

JPH0994690A CUT WIRE FOR WELDING 失效
公开(公告)号：JPH0994690A
公开(公告)日：1997-04-08
申请号：JP25433295
申请日：1995-09-29
申请人： KOBE STEEL LTD
发明人： HASE KAORU , OTSU MINORU
IPC分类号： B23K9/18 , B23K25/00 , B23K35/02 , B23K35/36
摘要： PROBLEM TO BE SOLVED: To obtain a cut wire for welding which has an excellent arc start property, is usable as an in-groove packing material and has good high-temp. crack resistance and hydrogen crack resistance. SOLUTION: The cut wire for welding is a cut wire 3a which is formed with a Cu clad layer 2 so as to coat a cut wire blank 1 and is further coated with oil. The diameter D of the cut wire 3a is 0.6 to 2.0mm and the length L in the longitudinal direction is 0.5 to 2Dmm. The value, in per cent, obtd. by dividing the Cu cladding quantity of the Cu clad layer 2 by the total weight of the cut wire is >=0.03 and the value, in ppm, obtd. by dividing the oil- component quantity of the oil by the total weight of the cut wire is 5 to 200ppm.

2. 发明专利

JPH0985447A SUBMERGED ARC WELDING METHOD OF BOX COLUMN ANGLE JOINT 失效
公开(公告)号：JPH0985447A
公开(公告)日：1997-03-31
申请号：JP24749895
申请日：1995-09-26
申请人： KOBE STEEL LTD
发明人： HASE KAORU
IPC分类号： B23K9/18 , B23K9/00 , B23K33/00
摘要： PROBLEM TO BE SOLVED: To provide a submerged arc welding method of a box column angle joint not requiring edge preparation and capable of improving welding efficiency in producing a box column. SOLUTION: In a submerged arc welding to weld a box column angle joint with multi-electrodes of two or more, by perpendicularly butting a plate 1 to be welded of a thickness t (mm) not having edge preparation with a plate 2 to be welded and spacing between both plates by a prescribed distance (gap G), I shaped groove is arranged. A backing 3 is placed at the corner part of the inside of angle joint formed in this way, a wire having diameter D (mm) is inserted into the groove from the upper side of plate 1 to be welded and a single layer welding is executed by submerged arc welding, a weld metal 4 is formed. At this time, welding is executed so that D>=4.8mm, 25mm

3. 发明专利

JPH0899191A BOND FLUX FOR SUBMERGED ARC WELDING 失效
公开(公告)号：JPH0899191A
公开(公告)日：1996-04-16
申请号：JP23571794
申请日：1994-09-29
申请人： KOBE STEEL LTD
发明人： HASE KAORU , SARUHASHI SEIJI
IPC分类号： B23K35/362
摘要： PURPOSE: To provide a bond flux for submerged arc welding which substantially prevents the central part of a bead shape from projecting in flat welding with large heat input for submerged arc welding by further adding an improvement to the prior having excellent slag removability and bead shape by taking advantage of this bond flux. CONSTITUTION: This bond flux contains, by weight%, 30 to 50% SiO2 , 10 to 30% MgO, 10 to 30% Al2 O3 , 2 to 10% CaO, 1 to 5% CaF2 , 1 to 20% metallic powder, 3 to 8% metal carbonate (value in terms of CO2 ) and 0.5 to 5% Na2 O and/or K2 O and consists of the balance inevitable impurities. Further, the content of TiO2 is suppressed to =5007μm is

4. 发明专利

JPH05161975A ONE-SIDE SUBMERGED ARC WELDING METHOD 失效
公开(公告)号：JPH05161975A
公开(公告)日：1993-06-29
申请号：JP35246891
申请日：1991-12-12
申请人： KOBE STEEL LTD
发明人： HASE KAORU , TANAKA KAZUO
IPC分类号： B23K9/18 , B23K37/06
摘要： PURPOSE:To secure a sound back bead with satisfactory adhesive strength of backing material, to prevent the backing material from falling after welding is completed and to perform one-side welding without auxiety when submerged arc welding with high heat input is applied, especially. CONSTITUTION:An aluminum adhesive tape for which peel adhesive strength (JISZ0237) at the normal temperature (23 deg.C) is >=450gf/10mm width and peel adhesive strength at 100 deg.C is >=150gf/10mm width is at least adhered in the range from the position where the steel sheet rear temperature in the orthogonal direction for a weld line when the back bead is solidified is =35mm to the position separated at least by >=70mm from the weld line and while the backing material is held, welding is performed in welding conditions for which the ratio of the welding heat gain (KJ/cm) to the thickness (mm) is in the range of 3.5-11.0.

5. 发明专利

JPH04167999A BOND FLUX FOR SUBMERGED ARC WELDING 失效
公开(公告)号：JPH04167999A
公开(公告)日：1992-06-16
申请号：JP29313690
申请日：1990-10-30
申请人： KOBE STEEL LTD
发明人： HASE KAORU
IPC分类号： B23K9/18 , B23K9/00 , B23K35/362
摘要： PURPOSE:To obtain a welding metal having excellent mechanical performance by controlling the specific wt% of SiO2, Al2O3, TiO2, MgO, CaCO3, Mn, iron powder and Na2O and specifying ratio of sol. Na2O and total. Na2O. CONSTITUTION:In the bond flux for submerged arc welding, 15-28wt% total SiO2, 10-20% Al2O3, 5-14% total TiO2, 10-20% MgO, 7-15% CaCO3, 0.5-8% total Mn, 15-35% iron powder, 1-6% sol. SiO2 and 1.5-3.5% Na2O, are contained. Further, the ratio of sol. Na2O/total Na2O is made to 0.60-0.98 (wherein sol. Na2O: the total content of sol. Na2O+sol. K2O+sol. Li2O total Na2O: the total content of total Na2O+ total K2O+ total Li2O) and 1.5-7% CaF2 is contained and the ratio of MgO/SiO2 (total) is made to 0.50-1.10. By this method, the performance having excellent welding workability, resistance to hydrogen crack, etc., is displayed.

6. 发明专利

JPH04167998A BOND FLUX FOR SUBMERGED ARC WELDING 失效
公开(公告)号：JPH04167998A
公开(公告)日：1992-06-16
申请号：JP29313590
申请日：1990-10-30
申请人： KOBE STEEL LTD
发明人： HASE KAORU
IPC分类号： B23K9/18 , B23K9/00 , B23K35/362
摘要： PURPOSE:To reduce consumption of slag by containing the specific wt% of SiO2, Al2O3, TiO2, MgO, Mn, ion powder, sol. SiO2 and sol. Na2O and specifying ratio of sol. Na2O and total Na2O. CONSTITUTION:In a bond flux for submerged arc welding, 10-20wt% SiO2, 10-20% Al2O3, 3-14% total TiO2, 10-20% MgO, 5-15% CaCO3, 0.5-8% total Mn, 20-40% iron powder, 1-6% sol. SiO2 and 1.5-3.5% sol. Na2O, are contained. Further, sol. Na2O/total Na2O ratio is made to 0.60-0.98. (wherein, sol. Na2O: the total content of sol. Na2O+sol. K2O+sol. Li2O, total Na2O: the total content of total Na2O+ total K2O+ total Li2O) MgO/SiO2 (total) ratio is made to 0.75-1.30. By this method, the performance having excellent welding workability, slag detachability, etc., is display.

7. 发明专利

JPS6210212A PRODUCTION OF BEND PIPE 失效
公开(公告)号：JPS6210212A
公开(公告)日：1987-01-19
申请号：JP14946785
申请日：1985-07-08
申请人： NIPPON KOKAN KK , KOBE STEEL LTD
发明人： AKAO KAZUTAKA , ISHIHARA TOSHIRO , KITADA TOYOFUMI , OKUDA NAOKI , WADA TAKASHI , HASE KAORU
IPC分类号： B21D7/16 , B21D7/00 , C21D8/10 , C21D9/08 , C22C38/00 , C22C38/14 , C22C38/16
摘要： PURPOSE:To produce a large-diameter bend pipe having excellent low-temp. toughness and strength in the bent part and straight part by adequately selecting the compsn. and heat treatment conditions of a molten metal in the stage of producing the large-diameter bend pipe by welding a steel plate by a submerged arc welding method and bending the welded pipe by bending. CONSTITUTION:The metal of the compsn. basically composed of 0.05-0.15% C, =1 kinds among =5min at 550-700 deg.C and is thus tempered.

8. 发明专利

JPS55136579A WELDING METHOD OF ANGLE JOINT PART 失效
公开(公告)号：JPS55136579A
公开(公告)日：1980-10-24
申请号：JP4379179
申请日：1979-04-10
申请人： KOBE STEEL LTD
发明人： OKUDA NAOKI , NOSE SHIGEZOU , HASE KAORU
IPC分类号： B23K9/00
摘要： PURPOSE:To prevent the drooping down of molten metal and perform welding at large heat input by interposing an insert between a vertical plate or horizontal plate and a backing strip. CONSTITUTION:An insert 7 is inserted to the opposing surfaces r of a main material 1' and backing strip 4'. Although the material and shape of the insert 7 are not particularly limited, an inorganic fibrous mat having plasticity such as mat of glass fibers, metal fibers or other inorganic fibers, or the one comprising enveloping powder or granules of welding flux, etc. with a film such as thermoplastic film or sheets is suitable. The above obviate the dropping of molten metal even if the deep penetration reaching the backing strip is formed with respect to the portions where the insert is interposed and make possible performing of high-efficiency welding through large heat input welding such as submerged arc welding.

9. 发明专利

JP2003010995A Melting type flux for submerged arc welding 审中-公开
标题翻译：用于浸没式焊接的熔融型焊剂
公开(公告)号：JP2003010995A
公开(公告)日：2003-01-15
申请号：JP2001191803
申请日：2001-06-25
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： ISHIZAKI YOSHIHITO , NISHIYAMA SHIGEKI , HASE KAORU
IPC分类号： B23K35/362
摘要： PROBLEM TO BE SOLVED: To provide melting type flux for arc welding, satisfactory in a based shape and peeling property of slag even in high-speed welding, not generating slag entrainment, a concave, overlap, etc., in particular enabling high-speed welding in medium/thick plates large in welding heat input, in the inclined welding.
SOLUTION: The structure of the melting type flux for submerged arc welding is to contain SiO
2 : 20-40 mass%, TiO
2 : 20-35 mass%, Al
2 O
3 : 1-10 mass%, MnO: 2-10 mass%, MgO: 5-20 mass%, and CaF
2 : 2-10 mass%, and CaO is controlled to be 4 mass% or less. And TiO
2 /Al
2 O
3 content are 2.5-25. Furthermore, the high temperature physical property of a molten slag generating in welding is that viscosity in 1450°C is 0.3-1.5 pois, and solidification temperature of the molten slag is 1300-1400°C.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供用于电弧焊接的熔化型焊剂，即使在高速焊接中也具有良好的基体形状和渣的剥离性能，不产生渣夹带，凹陷，重叠等，特别是能够实现高速焊接中/厚板焊接热输入大，在倾斜焊接。解决方案：埋弧焊熔融型焊剂的结构为：SiO2：20-40质量％，TiO2：20-35质量％，Al2 O3：1-10质量％，MnO：2-10质量％，MgO ：5-20质量％，CaF 2：2-10质量％，CaO控制在4质量％以下。 TiO2 / Al2 O3含量为2.5〜25。而且焊接产生熔渣的高温物理性质是1450℃的粘度为0.3〜1.5泊，熔融渣的凝固温度为1300〜1400℃。

10. 发明专利

JP2000271787A WIRE AND FLUX FOR SUBMERGED ARC WELDING EXCELLENT IN CORROSION RESISTANCE 失效
公开(公告)号：JP2000271787A
公开(公告)日：2000-10-03
申请号：JP8361499
申请日：1999-03-26
申请人： NIPPON KOKAN KK , KOBE STEEL LTD
发明人： SUZUKI SHINICHI , TAKEMURA AKIHIRO , HASE KAORU
IPC分类号： B23K9/18 , B23K9/00 , B23K35/30 , B23K35/362 , B23K35/368
摘要： PROBLEM TO BE SOLVED: To provide a wire and flux for submerged arc welding, with which the high weather resistance and the good weldability are obtd. in the environment having 0.05 mdd to =1.2% and the selective corrosion in the welded part is prevented by satisfying ([Ni]+[Cu]+3[Mo])/([Ni]p+[Cu]p+3[Mo]p)>=1.05. The high temp. crack of the welded metal is prevented by satisfying [P]/[P]p

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