CN106270956A - A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method - Google Patents
A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method Download PDFInfo
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- CN106270956A CN106270956A CN201610816134.XA CN201610816134A CN106270956A CN 106270956 A CN106270956 A CN 106270956A CN 201610816134 A CN201610816134 A CN 201610816134A CN 106270956 A CN106270956 A CN 106270956A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
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- Mechanical Engineering (AREA)
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- Plasma & Fusion (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention relates to a kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method in bridge structure forming processing technology field, its step includes being vertically fixed on panel U rib, welding machine is moved above panel, two weldering arm piece U ribs of clamping of welding machine, on every weldering arm, two welding guns are installed, front rifle is rich argon welding, and rear rifle is CO2Weldering；Before after the aligned position of welding wire end after rifle welding wire starting the arc walking 80mm, rear rifle welding wire senses the starting the arc automatically, the symmetrical one-shot forming under transverse presentation station of U rib two side weld is welded on panel, owing to U rib two side weld uses symmetrical Composite Double welding wire to weld, after welding, between U rib and panel, welding residual stress diminishes and welding deformation rectification workload can be avoided, production cost reduces, production of units efficiency gets a promotion.
Description
Technical field
The present invention relates to the welding procedure of a kind of orthotropic plate U angle of rib weld seam, particularly to a kind of orthotropic plate U rib
Angle welding transverse presentation symmetry mariages complex welding method.
Background technology
Along with the raising of domestic and international economic level, bridge current vehicle flow has exceeded well over the requirement designed originally, steel bridge
Orthotropic plate is frequently rolled by wheel, and heavy duty track is the harshest, this rib groove weld U-shaped to bridge orthotropic plate tired
The labor life-span brings great challenge, how to obtain excellent U angle of rib weld seam, to improving fatigue life of steel bridge orthotropic plate and resistance to
Property is most important for a long time.
During at present both at home and abroad Steel Bridge orthotropic rectangular plates structure manufactures, U angle of rib weld seam many employings semi-automatic welding dolly or
Welding robot overturns 45 ° of ship shape and realizes monofilament 2 road welding fabrication, one side weld under the weld seam prosposition station of U rib one side on moulding bed
After having connect, opposite side weld seam is welded in moulding bed upset again.It is disadvantageous in that: be not answering of employing in welding process
Closing double welding wire, U rib two side weld can not be symmetrically welded simultaneously, has that residual stress is big and welding deformation is rectified after its structure welding
The shortcomings such as positive workload is too much, production cost is high, production of units inefficiency.
Summary of the invention
Present invention solves the technical problem that and be: a kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages Combined Welding is provided
Connect method, less welding deformation and less welding and participate in stress, improve the welding quality of weld seam, thus improve orthotropic plate
Fatigue life and durability.
In order to realize the purpose of foregoing invention, the technical solution used in the present invention:
A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry complex welding method, its step includes:
A, the manufacture of U rib plate unit: use double sides milling machine that two long limits of U rib are machined out groove, root face chi
Very little P=1.5～2.5mm, retaining wall on slope angle is 39 °, groove and panel angle α=50～55 °, groove complete after die mould；
B, orthotropic plate will be assembled on U rib longitudinal register panel, then orthotropic plate is placed on platform, panel
Being fixed with a middle side part of U rib to raise up and carry out reversible deformation, protruding anti-deformation is 80～120mm；
The lateral symmetry of C, U rib is welded simultaneously, and every side arranges two welding guns, and the welding wire distance of two welding guns is 80mm, front
Rifle uses the rich argon welding of solid welding wire, and rear rifle uses the CO of metal powder-cored wire2Weldering；Rifle before after the aligned position of welding wire end
Welding wire rises after arc walks 80mm, and rear rifle welding wire senses the starting the arc automatically, and U rib two side weld is symmetrical one-shot forming weldering under transverse presentation station
It is connected on panel.
Compared with prior art, the invention have the benefit that due to the rich argon welding that the welding wire of front rifle is solid welding wire, molten
Dripping transition is project transfer, and root fusion is good, advantageously ensures that U rib weld penetration.Welding protection environment is argon-rich gas ring
Border, reduces nitrogen, oxygen content in weld metal while reducing alloying element scaling loss degree, is effectively improved weld seam low-temperature flexibility and weldering
Seam crack resistance, the welding wire of rear rifle is the CO2 weldering of metal powder type flux-cored wire, and welding process is stable, and anti-electromagnetic interference capability is strong,
Appearance of weld is attractive in appearance, and U rib two side weld uses and is symmetrically welded simultaneously simultaneously, welding residual stress between U rib and panel after welding
Diminishing and welding deformation rectification workload can be avoided, production cost reduces, production of units efficiency gets a promotion, U rib is once
Welding fabrication, has safe and reliable, production efficiency advantages of higher.
As a further improvement on the present invention, the thickness of described panel is 10～18mm, and the plate thickness of U rib is 6～8mm,
The steel yield strength of panel and U rib is 345～500MPa.Thus ensure that during welding, weld seam is solid and reliable.
As a further improvement on the present invention, during the steel yield strength≤420MPa of panel described in A. and U rib, U rib welds
The backing run welding material of seam is ER50-6 Φ 1.2mm solid welding wire, and described protective gas is argon and CO2Gaseous mixture
Body, the two gas volume is than for V1/V2The filling molding pass weld material of=8:2, U rib weld seam is E500T-1 Φ 1.6mm gold
Belonging to powder core pattern flux-cored wire, described protective gas is CO2Gas；
During the steel yield strength ＞ 420MPa of B, described panel and U rib, the backing run welding material of U rib weld seam is
ER70-G Φ 1.2mm solid welding wire, described protective gas is argon and CO2Mixed gas, gas volume is than for V1/V2=8:
The filling molding pass weld material of 2, U rib weld seams is JQ.621K2-1Q Φ 1.6mm metal powder type flux-cored wire, described guarantor
Protecting gas is CO2Gas.Due to panel and U rib steel yield strength size in two kinds of situation, in order to ensure weld seam welding
The most solid and reliable, therefore select different welding wires and protective gas.
As a further improvement on the present invention, the welding wire welding parameter on described front rifle is: welding wire distance between two tips groove root
Portion is 1～1.5mm, and the angle between welding wire and panel is 37～39 °, and welding current is 260～280A, weldingvoltage be 28～
30V, the welding parameter of rear rifle welding wire is: welding wire tip is placed in the point of intersection of U rib plate outer surface extension line and panel, welding wire and face
Plate holder angle 41～43 °, welding current is 320～340A, and weldingvoltage is 30～32V, and welding wire length is 18～22mm, gas stream
Amount is 20～25L/min, and when the thickness of U rib is 6mm, the welding speed of travel is 500～550mm/min, when the thickness of U rib is
During 8mm, the welding speed of travel is 450～500mm/min, thus the welding wire ensured in welding process on front rifle and rear rifle is effectively
Work.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Wherein, 1U rib, 2 platforms, 3 panels, 4 hydraulic means, 5 welding machines.
Detailed description of the invention
As it is shown in figure 1, be a kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method, its step bag
Include: the manufacture of A, U rib 1 Slab element: use double sides milling machine that 1 two long limits of U rib are machined out groove, root face size P
=1.5～2.5mm, retaining wall on slope angle is 39 °, groove and panel 3 angle α=50～55 °, groove complete after die mould；B, by U
Rib 1 is vertically fixed on panel 3, then is arranged on platform 2 by panel 3, clamps panel both sides with the hydraulic means 4 on platform 2
Carrying out reversible deformation so that the middle side part being fixed with U rib raises up, protruding anti-deformation is 80～120mm simultaneously；C, general
Gate-type multi-head welder 5 moves above panel 3, two weldering arm piece U ribs 1 of clamping of welding machine 5, and every weldering arm is provided with two
Welding gun, the welding wire distance of two welding guns is 80mm, and front rifle uses the rich argon welding of solid welding wire, and rear rifle uses the weldering of metal-powder-core medicated core
The CO of silk2Weldering；Before after the aligned position of welding wire end, rifle welding wire rises after arc walks 80mm, and rear rifle welding wire senses the starting the arc, U rib 1 automatically
The symmetrical one-shot forming under transverse presentation station of two side welds is welded on panel 3, and the thickness of panel 3 is 10～18mm, the thickness of U rib 1
Degree is 6～8mm, and the steel yield strength of panel 3 and U rib 1 is 345～500MPa, thus ensures that during welding, weld seam is solid and reliable,
During the steel yield strength≤420MPa of panel 3 and U rib 1, the backing run welding material of U rib 1 weld seam is ER50-6 Φ 1.2mm
Solid welding wire, described protective gas is argon and CO2Mixed gas, gas volume is than for V1/V2Filling out of=8:2, U rib 1 weld seam
Filling molding pass weld material is E500T-1 Φ 1.6mm metal powder type flux-cored wire, and described protective gas is CO2Gas；Face
During the steel yield strength ＞ 420MPa of plate 3 and U rib 1, the backing run welding material of U rib 1 weld seam is that ER70-G Φ 1.2mm is real
Cored welding wire, described protective gas is argon and CO2Mixed gas, gas volume is than for V1/V2The filling of=8:2, U rib 1 weld seam
Molding pass weld material is JQ.621K2-1Q Φ 1.6mm metal powder type flux-cored wire, and described protective gas is CO2Gas.
Due to panel 3 and U rib 1 steel yield strength size in two kinds of situation, in order to ensure that weld seam is the most solid and reliable, therefore
Selecting different welding wires and protective gas, the welding wire welding parameter on front rifle is: welding wire distance between two tips groove root be 1～
1.5mm, the angle between welding wire and panel 3 is 37～39 °, and welding current is 260～280A, and weldingvoltage is 28～30V, after
The welding parameter of rifle welding wire is: welding wire tip is placed in the point of intersection of U rib 1 plate outer surface extension line and panel 3, welding wire and panel 3
Angle 41～43 °, welding current is 320～340A, and weldingvoltage is 30～32V, and welding wire length is 18～22mm, gas flow
Being 20～25L/min, when the thickness of U rib 1 is 6mm, the welding speed of travel is 500～550mm/min, when the thickness of U rib 1 is
During 8mm, the welding speed of travel is 450～500mm/min, thus the welding wire ensured in welding process on front rifle and rear rifle is effectively
Work.
The invention is not limited in above-described embodiment, on the basis of technical scheme disclosed by the invention, the skill of this area
Art personnel are according to disclosed technology contents, it is not necessary to some of which technical characteristic just can be made one by performing creative labour
A little replacements and deformation, these are replaced and deformation is the most within the scope of the present invention.
Claims (4)
1. an orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method, it is characterised in that step includes:
A, the manufacture of U rib plate unit: use double sides milling machine that two long limits of U rib are machined out groove, root face size P=
1.5～2.5mm, retaining wall on slope angle is 39 °, groove and panel angle α=50～55 °, groove complete after die mould；
B, will be assembled into orthotropic plate on U rib longitudinal register panel, then be placed on platform by orthotropic plate, panel is fixed
The middle side part having U rib raises up and carries out reversible deformation, and protruding anti-deformation is 80～120mm；
The lateral symmetry of C, U rib is welded simultaneously, and every side arranges two welding guns, and the welding wire distance of two welding guns is 80mm, and front rifle is adopted
With the rich argon welding of solid welding wire, rear rifle uses the CO of metal powder-cored wire2Weldering；Rifle welding wire before after the aligned position of welding wire end
Rising after arc walks 80mm, rear rifle welding wire senses the starting the arc automatically, and the symmetrical one-shot forming under transverse presentation station of U rib two side weld is welded in
On panel.
A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method the most according to claim 1, it is special
Levying and be: the thickness of described panel is 10～18mm, the plate thickness of U rib is 6～8mm, and the steel yield strength of panel and U rib is
345～500MPa.
A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method the most according to claim 1 and 2,
It is characterized in that:
During the steel yield strength≤420MPa of the most described panel and U rib, the backing run welding material of U rib weld seam is ER50-6
Φ 1.2mm solid welding wire, described protective gas is argon and CO2Mixed gas, the two gas volume is than for V1/V2=8:2, U
The filling molding pass weld material of rib weld seam is E500T-1 Φ 1.6mm metal powder type flux-cored wire, and described protective gas is
CO2Gas；
During the steel yield strength ＞ 420MPa of B, described panel and U rib, the backing run welding material of U rib weld seam is ER70-G
Φ 1.2mm solid welding wire, described protective gas is argon and CO2Mixed gas, gas volume is than for V1/V2=8:2, U rib welds
The filling molding pass weld material of seam is JQ.621K2-1Q Φ 1.6mm metal powder type flux-cored wire, and described protective gas is
CO2Gas.
A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method the most according to claim 1 and 2,
It is characterized in that: the welding wire welding parameter on described front rifle is: welding wire distance between two tips groove root is 1～1.5mm, welding wire and face
Angle between plate is 37～39 °, and welding current is 260～280A, and weldingvoltage is 28～30V, the welding ginseng of rear rifle welding wire
Number is: welding wire tip is placed in the point of intersection of U rib plate outer surface extension line and panel, welding wire and panel angle 41～43 °, welding electricity
Stream is 320～340A, and weldingvoltage is 30～32V, and welding wire length is 18～22mm, and gas flow is 20～25L/min, works as U
When the thickness of rib is 6mm, the welding speed of travel is 500～550mm/min, when the thickness of U rib is 8mm, welds the speed of travel
It is 450～500mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610816134.XA CN106270956A (en) | 2016-09-09 | 2016-09-09 | A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610816134.XA CN106270956A (en) | 2016-09-09 | 2016-09-09 | A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method |
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| CN106270956A true CN106270956A (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610816134.XA Pending CN106270956A (en) | 2016-09-09 | 2016-09-09 | A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584196A (en) * | 2017-09-14 | 2018-01-16 | 武汉天高熔接股份有限公司 | Long-lived Orthotropic Steel Bridge Deck is remained silent the welding procedure of rib |
| CN109570708A (en) * | 2018-11-15 | 2019-04-05 | 中铁宝桥（扬州）有限公司 | A kind of orthotropic steel bridge deck U rib K-type connector complex welding method |
| CN109570707A (en) * | 2018-11-15 | 2019-04-05 | 中铁宝桥（扬州）有限公司 | A kind of Steel Bridge U rib plate block complete penetration welding method |
-
2016
- 2016-09-09 CN CN201610816134.XA patent/CN106270956A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584196A (en) * | 2017-09-14 | 2018-01-16 | 武汉天高熔接股份有限公司 | Long-lived Orthotropic Steel Bridge Deck is remained silent the welding procedure of rib |
| CN109570708A (en) * | 2018-11-15 | 2019-04-05 | 中铁宝桥（扬州）有限公司 | A kind of orthotropic steel bridge deck U rib K-type connector complex welding method |
| CN109570707A (en) * | 2018-11-15 | 2019-04-05 | 中铁宝桥（扬州）有限公司 | A kind of Steel Bridge U rib plate block complete penetration welding method |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Jiangbo Inventor after: Yang Hongtao Inventor after: Zhu Xinhua Inventor after: Sun Leilei Inventor after: Zhang Yongli Inventor after: Liu Zhigang Inventor after: Zhang Haitao Inventor after: Li Yanguo Inventor after: Yang Hong Inventor after: Mu Changchun Inventor before: Wu Jiangbo Inventor before: Zhang Yongli Inventor before: Zhu Xinhua Inventor before: Liu Zhigang Inventor before: Zhang Haitao Inventor before: Li Yanguo Inventor before: Yang Hong Inventor before: Yang Hongtao |
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| CB03 | Change of inventor or designer information | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |
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| WD01 | Invention patent application deemed withdrawn after publication |