CN105921862A - Welding treatment method suitable for oblique crossing combined forming of steel pipes - Google Patents

Welding treatment method suitable for oblique crossing combined forming of steel pipes Download PDF

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Publication number
CN105921862A
CN105921862A CN201610482877.8A CN201610482877A CN105921862A CN 105921862 A CN105921862 A CN 105921862A CN 201610482877 A CN201610482877 A CN 201610482877A CN 105921862 A CN105921862 A CN 105921862A
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degree
welding
steel pipe
area
bevel angle
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CN105921862B (en
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张建中
刘桂芳
高顺阶
左琛
汪勇军
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China Gezhouba Group Machinery and Ship Co Ltd
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Ge Zhou Ba Mechanical Industry Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/235Preliminary treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/02Seam welding; Backing means; Inserts
    • B23K9/032Seam welding; Backing means; Inserts for three-dimensional seams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/16Arc welding or cutting making use of shielding gas
    • B23K9/173Arc welding or cutting making use of shielding gas and of a consumable electrode
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • B23K2101/06Tubes

Abstract

The invention provides a welding treatment method suitable for oblique crossing combined forming of steel pipes. According to the welding treatment method, local grooving is carried out on joints of the steel pipes crossed obliquely to avoid the problem that the welding quality cannot be ensured due to great welding difficulty caused by the whole ring of groove welding, thereby improving working efficiency and welding quality.

Description

A kind of soldering method being applicable to steel pipe and steel pipe oblique combination forming
Technical field
The present invention relates to a kind of steel-pipe welding method, a kind of be applicable to welding of steel pipe and steel pipe oblique combination forming Processing method.
Background technology
Grid structure is the space structure being connected by node according to certain grid configuration by plurality of rods part and being formed, and belongs to Space pin-bar assembly, the most overstable space structure, there is industrialization degree high, from heavy and light, good stability, good looking appearance Feature.The rod member of grid structure can participate in work and has good stress performance, and its rigidity and stability are better than general plane Structure, can effectively bear various non-symmetrical load, concentrfated load, dynamic loading.Grid structure all rod members entirety mechanical characteristic makes Its space stiffness is big, thus anti-seismic performance is good.
Grid structure shortcoming is that to intersect at the rod member quantity on node more, and fabrication and installation relatively planar structure is complicated.Constitute net The elementary cell of frame includes pyrometric cone, triangular prism, square, butt quadrangular pyramid etc., these elementary cells be combined into putting down Face, therefore large-size net rack steel construction is after factory has manufactured, and generally requires and resolves into delivery unit, then carries out at project scene Integral space truss structure it is welded into after spelling.Exist for the weld seam of steel pipe and steel pipe, steel pipe and ball Orthogonal Composite at the scene, this The welding at one class composite welds scene is the most difficult, and after factory's spelling, groove is the most regular, and welding easily ensures.But Being the composite welds for steel pipe Yu steel pipe oblique, this kind of weld seam belongs to aerial all position welding, and whole groove face every bit position The bevel angle size put is the most different, and not only retaining wall on slope gets up extremely difficult, and makes it weld because of the change of angle when welding Connect quality to be also not easy to ensure.
Traditional handicraft is all to use whole circle bevel, and for ensureing through welding, the welding rod of manual welding operation or welding wire are wanted to reach The end, when causing groove to open processed, steel pipe and gap, steel pipe intersection are very big, and being often that incomplete fusion is lack of penetration at this concentrates the ground occurred Side.It addition, be also not easy to weld seam internal soundness at this is carried out qualitative examination.So make to become whole at steel pipe inclined T joint Weak spot on one quality control of grid structure, easily there is potential safety hazard in poor quality, causes security incident.
Summary of the invention
The technical problem to be solved is to provide a kind of soldering being applicable to steel pipe and steel pipe oblique combination forming Method, it is possible to reduce the welding difficulty of manual welding oblique steel pipe, it is ensured that through welding, improves welding quality.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is:
A kind of soldering method being applicable to steel pipe and steel pipe oblique combination forming, comprises the following steps:
Step one: whole lap welding is stitched subregion, including top area θ 1, lateral region θ 2 and root area θ 3, top area θ 1 span is that 115 degree of-125 degree, lateral region θ 2 span of symmetrical both sides are 75 degree-85 and spend, root area θ 3 Span is 75 degree of-85 degree;Simultaneously determine top area θ 1 and lateral region θ 2 according to the angle α between oblique pipe Bevel angle, root area θ 3 square groove.
Step 2: according to the bevel angle in each region, has opened groove, and has carried out groove locally repairing cutting steel pipe.
Step 3: the steel pipe needing cutting is held out against assembling, symmetry carries out multiple spot welding and realizes location, for formal welding Prepare.
Step 4: realizing welding, welding sequence is: 1), back welding: successively at top area θ 1 and root area θ 3 Symmetrical one back welding of bottoming, symmetrical one back welding of bottoming of lateral region θ 2 in both sides, complete whole circle back welding;2)、 Use segmentation welding method, multi-pass welding: first, weld the weld seam of monosymmetric lateral region θ 2;Secondly, root Completing top area θ 1 or the fillet weld in the flat position of root area θ 3 according to installation position, throat thickness reaches half;Then, complete Horizontal position welding of facing upward with fillet weld in the flat position opposed area is stitched;Finally, second half flat fillet weld of top area θ 1 or root area θ 3 is completed The welding of seam;3), cosmetic welding: entirety carries out one weld cap.
Step 5: butt welded seam carries out flaw detection.
Described angle α takes 30 degree of-60 degree.
When α=60 degree, the bevel angle change of θ 1 is 40 degree of-60 degree-40 degree;θ 2 bevel angle take 40 degree- 30。
: when α=45 degree, the bevel angle change of θ 1 is 45 degree of-55 degree-45;θ 2 bevel angle takes 45 degree-35 Degree.
When α=30 degree, the bevel angle change of θ 1 is 40 degree of-50 degree-40 degree;θ 2 bevel angle takes 40 degree-30 Degree.
The bevel angle of described top area θ 1 and lateral region θ 2 can go up lower deviation 3 degree.
A kind of soldering method being applicable to steel pipe and steel pipe oblique combination forming of the present invention, has following technical effect that
1) it is, the weld seam of stress due to weld, it is therefore necessary to through welding and do the defect detecting test of internal soundness.Use conventional whole lap welding Connecing, the gap produced when acute angle commissure is due to welding is very big, is on the one hand not easy through welding, on the other hand increases welding remnants Stress, is divided into groove district and non-groove district by whole lap welding seam, can realize weldering in groove district by the groove welding technology of existing maturation Thoroughly, weld seam internal soundness and intensity can ensure, rather than the form that groove district uses angle welding carrys out equal strength design, equally Weld strength problem can be solved, so that whole circle welding strength of welding seam is all protected, and conveniently do the flaw detection inspection of internal soundness Look into.
2) being, due to the bevel angle of oblique pipeline change, the size of its every some groove is all change, by by groove Divide into top area θ 1 and monosymmetric lateral region θ 2, and make groove district constitute about the 7/9 of overall weld seam, it is achieved slope The symmetrical segmentation welding of mouth, on the premise of ensureing through welding, decreases the loading of weld seam, and then eliminates on-the-spot excessive welding Residual stress, improves the service life of grid structure.Additionally use the form of angle welding to come equal strength design, nothing in non-groove region Steel pipe intersection must be carried out groove welding, and then reduce welding procedure difficulty.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the schematic diagram (the first) after oblique penstock installation.
Fig. 2 is the schematic diagram (the second) after oblique penstock installation.
Fig. 3 is the schematic diagram (the third) after oblique penstock installation.
Fig. 4 is that oblique steel pipe seam region divides schematic diagram.
Fig. 5 is the schematic diagram (the first) after oblique steel-pipe welding.
Fig. 6 is the schematic diagram (the second) after oblique steel-pipe welding.
Fig. 7 is the schematic diagram (the third) after oblique steel-pipe welding.
Detailed description of the invention
A kind of soldering method being applicable to steel pipe and steel pipe oblique combination forming, comprises the following steps:
Step one: whole lap welding is stitched subregion, including top area θ 1, lateral region θ 2 and root area θ 3, top area θ 1 span is that 115 degree of-125 degree, lateral region θ 2 span of symmetrical both sides are 75 degree-85 and spend, root area θ 3 Span is 75 degree of-85 degree;Simultaneously determine top area θ 1 and lateral region θ 2 according to the angle α between oblique pipe Bevel angle, root area θ 3 square groove.After assembling at the scene, θ212Region is groove weld region, greatly Account for the 7/9, θ of weld seam girth3Region is corner welding line region, and Size of welds K takes the maximum of crossing thickness of steel pipe.Pin During oblique steel-pipe welding, the acute angle weld welded gaps intersected is big, incomplete fusion is lack of penetration, the detection of weld seam internal soundness The problem of difficulty, by arranging groove district and non-groove district (root, acute angle welding region), realizes groove welding in groove district, Being possible not only to ensure weldquality, steel pipe does the internal soundness inspection of weld seam in the range of groove district and is also entirely capable of realizing.Rather than slope Mouth region inside weld with etc. strong high weld seam replace penetration weld intensity, from Theoretical Calculation, carry out the guarantee of intensity, from welding process On say angle weld strong operability, advantageously ensure that welding quality.
Step 2: according to the bevel angle in each region, has opened groove, and has carried out groove locally repairing cutting steel pipe. The mowing of local can use angle grinding machine to carry out repairing cutting.
Step 3: the steel pipe needing cutting is held out against assembling, and the position of the oblique coupling assembled typically has three Kind, as shown in Figure of description 1-3, at coupling, carry out multiple spot welding realize location, prepare for formal welding.
Step 4: realize welding, generally uses the welding manner of SMAW or CO2 gas shielded arc welding to complete.Weldering Connect order be: 1), back welding: successively in top area θ 1 back welding together with the symmetry bottoming of corner welding line region, in both sides Symmetrical one back welding of bottoming of lateral region θ 2, complete whole circle back welding;2), segmentation welding method, multilamellar multiple tracks are used Weldering: first, welded the weld seam of monosymmetric lateral region θ 2;Secondly, top area θ is completed according to installation position 1 or the fillet weld in the flat position of root area θ 3, throat thickness reaches half;Then, complete with fillet weld in the flat position opposed area face upward horizontal stroke Weld seam;Finally complete the welding of second half fillet weld in the flat position of top area θ 1 or root area θ 3;3), cosmetic welding: overall Carry out one weld cap.
Step 5: butt welded seam carries out flaw detection.
Described angle α takes 30 degree-60 when spending, and the bevel angle of corresponding top area θ 1 takes 40 degree of-60 degree-40 Degree, lateral region θ 2 bevel angle takes 40 degree of-30 degree.At this angle, it is possible to ensure the quality of steel pipe groove welding welding Good.
The bevel angle of described top area θ 1 and lateral region θ 2 can go up lower deviation 3 degree.Groove due to oblique light pipe Angle is change, and for ensureing welding quality, the angular deviation of groove can not be too big, otherwise can affect weld seam internal soundness qualified Rate.
Preferred version 1
α angle is to be determined by the design of whole grid structure, but general α takes 30 degree~60 degree of these scopes.
When α=60 degree, the bevel angle change of θ 1 is 40 degree of-60 degree-40 degree;θ 2 bevel angle take 40 degree- 30;
When α=45 degree, the bevel angle change of θ 1 is 45 degree of-55 degree-45;θ 2 bevel angle takes 45 degree of-35 degree;
When α=30 degree, the bevel angle change of θ 1 is 40 degree of-50 degree-40 degree;θ 2 bevel angle takes 40 degree of-30 degree.
For different α angles, the angle in different groove regions is changed, in order to make the weld seam between oblique steel pipe Loading reduce as far as possible while realize through welding, it is ensured that the optimization of welding, reduce the remnants in welding process to greatest extent Stress.
Preferred version 2
In above-mentioned welding process, when the bevel angle of top area θ 1 takes 40 degree of-60 degree-40 degree, lateral region θ 2 bevel angle Take 40 degree of-30 degree, during root area θ 3 square groove, following several scheme can be taked:
1), top area θ 1 take 120 degree, lateral region θ 2 of symmetrical both sides takes 80 degree, and root area θ 3 takes 80 degree.
2), top area θ 1 take 115 degree, lateral region θ 2 of symmetrical both sides takes 80 degree, and root area θ 3 takes 85 Degree.
3), top area θ 1 take 125 degree, lateral region θ 2 of symmetrical both sides takes 80 degree, and root area θ 3 takes 75 Degree.
4), top area θ 1 take 115 degree, lateral region θ 2 of symmetrical both sides takes 85 degree, and root area θ 3 takes 75 Degree.
5), top area θ 1 take 125 degree, lateral region θ 2 of symmetrical both sides takes 75 degree, and root area θ 3 takes 85 Degree.
6), top area θ 1 take 118 degree, lateral region θ 2 of symmetrical both sides takes 75 degree, and root area θ 3 takes 92 Degree.
7), top area θ 1 take 122 degree, lateral region θ 2 of symmetrical both sides takes 75 degree, and root area θ 3 takes 78 Degree.
By to groove welding region with etc. the reasonable distribution in strong angle welding region, to top area and sidepiece in groove region The reasonable distribution in region, is ensureing being symmetrically welded of groove region, is reducing residual stress, make the weld strength of whole plumb joint reach On the premise of welding requirements, it is provided that multiple choices, can be processed according to actual needs.
When installing for common several steelframes, oblique steel pipe welding joint location is illustrated.
Embodiment 1
As shown in Figure 5: when soldered bar is horizontal, weld seam position is essentially flat horizontal position welding position, and this position manual welding technology is held Easily grasp.First, having opened groove at maker by design, to needing local to repair the rod member cut, scene is interim to be come with angle grinding machine Reconditioning groove;Then, hold out against assembling and butt welded seam carries out multiple spot welding, prepare for welding.Secondly, weld: first Road realizes back welding, and symmetrical welding completes the welding of whole circle;Below according to the weld metal zone divided, use segmentation welding method, multilamellar Multi-pass welding, completes welding.
Embodiment 2
As shown in Figure 6: when soldered bar is in vertical position, when top area is positioned at bottom, top area θ1Scope is for facing upward horizontal position welding Position, lateral region θ2For climbing welding position upwards, root area θ3For straight angle welding position, welding point top area θ1Place's weldering Connect difficulty maximum.Above preparation is in the same manner as in Example 1, in welding process use welding sequence be: 1), back cover Weldering: symmetrical welding completes the welding of whole circle.2), use segmentation welding method, multi-pass welding: first, be symmetrically welded θ2The weld seam in district;Then, welding θ3The fillet weld in the flat position in district, throat thickness reaches half;Secondly, θ has been welded1District faces upward Horizontal position welding;Finally, θ is completed3The welding of district's fillet weld in the flat position.3), cosmetic welding: overall one weld cap.Weld suitable by Sequence completes, and its weldquality tends to be protected.
Embodiment 3
As shown in Figure 7: when soldered bar is in vertical position, when top area is positioned at top, root area θ3Scope is for facing upward horizontal position welding Position, lateral region θ2Weld for climbing upwards, top area θ1For straight angle welding position.Due to root area θ3Belong to acute angle to face upward Horizontal position welding position, arc manipulation and sight line are the most not very good, and weld seam operation easier is the biggest.The welding sequence used in welding process For: 1), back welding: first at flat fillet weld position θ1One soldering and sealing of district's bottoming, at root area θ3The bottoming of horizontal position welding position is faced upward together by district Soldering and sealing.2), use segmentation welding method, multi-pass welding: first, be symmetrically welded θ2The weld seam in district;Then, welding Top θ1The fillet weld in the flat position in district, throat thickness reaches half;Secondly, root θ has been welded3Horizontal position welding is faced upward in district;Finally, complete Become θ1The welding of district's fillet weld in the flat position.3), cosmetic welding: overall one weld cap.By, welding sequence completes, its weld seam Quality tends to be protected.

Claims (6)

1. the soldering method being applicable to steel pipe and steel pipe oblique combination forming, it is characterised in that: comprise the following steps:
Step one: whole lap welding is stitched subregion, including top area θ 1, lateral region θ 2 and root area θ 3, top area θ 1 span is that 115 degree of-125 degree, lateral region θ 2 span of symmetrical both sides are 75 degree-85 and spend, root area θ 3 Span is 75 degree of-85 degree;Simultaneously determine top area θ 1 and lateral region θ 2 according to the angle α between oblique pipe Bevel angle, root area θ 3 square groove;
Step 2: according to the bevel angle in each region, has opened groove, and has carried out groove locally repairing cutting steel pipe;
Step 3: the steel pipe needing cutting is held out against assembling, symmetry carries out multiple spot welding and realizes location, prepares for formal welding;
Step 4: realizing welding, welding sequence is: 1), back welding: beat in top area θ 1 and root area θ 3 symmetry successively One back welding in the end, symmetrical one back welding of bottoming of lateral region θ 2 in both sides, complete whole circle back welding;2), employing point Section welding method, multi-pass welding: first, has welded the weld seam of monosymmetric lateral region θ 2;Secondly, according to installation Orientation completes top area θ 1 or the fillet weld in the flat position of root area θ 3, and throat thickness reaches half;Then, complete and the straight angle The horizontal position welding of facing upward of weld seam opposed area is stitched;Finally complete the weldering of second half fillet weld in the flat position of top area θ 1 or root area θ 3 Connect;4), cosmetic welding: entirety carries out one weld cap;
Step 5: butt welded seam carries out flaw detection.
A kind of soldering method being applicable to steel pipe and steel pipe oblique combination forming the most according to claim 1, its feature exists In: described angle α takes 30 degree of-60 degree.
A kind of soldering method being applicable to steel pipe and steel pipe oblique combination forming the most according to claim 2, its feature exists In: during when α=60 degree, the bevel angle change of θ 1 is 40 degree of-60 degree-40 degree;θ 2 bevel angle takes 40 degree-30.
A kind of soldering method being applicable to steel pipe and steel pipe oblique combination forming the most according to claim 2, its feature exists In: during when α=45 degree, the bevel angle change of θ 1 is 45 degree of-55 degree-45;θ 2 bevel angle takes 45 degree of-35 degree.
A kind of soldering method being applicable to steel pipe and steel pipe oblique combination forming the most according to claim 2, its feature exists In: when α=30 degree, the bevel angle change of θ 1 is 40 degree of-50 degree-40 degree;θ 2 bevel angle takes 40 degree of-30 degree.
A kind of soldering method being applicable to steel pipe and steel pipe oblique combination forming the most according to claim 1, its feature exists In: the bevel angle of described top area θ 1 and lateral region θ 2 can go up lower deviation 3 degree.
CN201610482877.8A 2016-06-27 2016-06-27 A kind of soldering method suitable for steel pipe and steel pipe oblique combination forming Active CN105921862B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107962277A (en) * 2017-10-20 2018-04-27 中国二十冶集团有限公司 For connecting pipe and the welding method of solder sphere
CN108856990A (en) * 2018-07-18 2018-11-23 攀钢集团工程技术有限公司 The method that MAG weldering carries out the welding of tipping tube pipe
CN108952808A (en) * 2018-07-04 2018-12-07 中铁六局集团有限公司 Large volume internal axial pressure compensator installation engineering method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900346A (en) * 1972-11-04 1975-08-19 Willi Muller Method for the automatic guidance of a work tool on the curves of intersection of two pipes or tubes
JPS59141382A (en) * 1983-01-31 1984-08-14 Hitachi Zosen Corp Welding method of steel pipe
JPS61169173A (en) * 1985-01-21 1986-07-30 Ishikawajima Harima Heavy Ind Co Ltd Weldng method of branch pipe
JPS63278671A (en) * 1987-05-07 1988-11-16 Mitsubishi Heavy Ind Ltd Saddle type weld line welding method for pipe intersection part
CN1824450A (en) * 2005-02-22 2006-08-30 大连新船重工有限责任公司 Technological method of partly submerged type platform complex K type node welding
CN101041200A (en) * 2006-03-20 2007-09-26 上海锅炉厂有限公司 Method of welding the plug in type connection nozzle and the un-orthogonal crossed connection nozzle of the cylinder
CN102069267A (en) * 2011-01-25 2011-05-25 杭州凯尔达电焊机有限公司 Universal arc welding robot teaching method regarding cylinder intersection welding seam

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3900346A (en) * 1972-11-04 1975-08-19 Willi Muller Method for the automatic guidance of a work tool on the curves of intersection of two pipes or tubes
JPS59141382A (en) * 1983-01-31 1984-08-14 Hitachi Zosen Corp Welding method of steel pipe
JPS61169173A (en) * 1985-01-21 1986-07-30 Ishikawajima Harima Heavy Ind Co Ltd Weldng method of branch pipe
JPS63278671A (en) * 1987-05-07 1988-11-16 Mitsubishi Heavy Ind Ltd Saddle type weld line welding method for pipe intersection part
CN1824450A (en) * 2005-02-22 2006-08-30 大连新船重工有限责任公司 Technological method of partly submerged type platform complex K type node welding
CN101041200A (en) * 2006-03-20 2007-09-26 上海锅炉厂有限公司 Method of welding the plug in type connection nozzle and the un-orthogonal crossed connection nozzle of the cylinder
CN102069267A (en) * 2011-01-25 2011-05-25 杭州凯尔达电焊机有限公司 Universal arc welding robot teaching method regarding cylinder intersection welding seam

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
彭圣浩: "《建筑工程质量通病防治手册 第三版》", 31 October 2002, 中国建筑工业出版社 *
戴为志: "《建筑钢结构工程焊接技术及实例》", 30 June 2010, 化学工业出版社 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107962277A (en) * 2017-10-20 2018-04-27 中国二十冶集团有限公司 For connecting pipe and the welding method of solder sphere
CN108952808A (en) * 2018-07-04 2018-12-07 中铁六局集团有限公司 Large volume internal axial pressure compensator installation engineering method
CN108856990A (en) * 2018-07-18 2018-11-23 攀钢集团工程技术有限公司 The method that MAG weldering carries out the welding of tipping tube pipe

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