CN108672890A - It is a kind of can plus load high-strength steel welding system and welding method - Google Patents
It is a kind of can plus load high-strength steel welding system and welding method Download PDFInfo
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- CN108672890A CN108672890A CN201810761148.5A CN201810761148A CN108672890A CN 108672890 A CN108672890 A CN 108672890A CN 201810761148 A CN201810761148 A CN 201810761148A CN 108672890 A CN108672890 A CN 108672890A
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- strength steel
- welding
- load
- welded
- plus load
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
-
- 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
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
Abstract
It is a kind of can plus load high-strength steel welding system and welding method, it may be implemented in the welding process, external applied load is applied to high-strength steel, under the action of external applied load, the effect of power can be generated to weld seam and its peripheral region, change stress value and its distribution of weld seam and its peripheral region, the welding residual stress of high strength steel plate is set to be improved, and under external load function, the crystalline state of crystal grain can be changed, make crystal grain refinement, and then improve weld seam and surrounding toughness, overcomes stress concentration in high-strength steel welding process, the disadvantage of toughness deficiency.Also there is the present invention the features such as simple in structure, easy to operate, the welding system to optimize traditional single electric arc welding for greater flexibility, have broad application prospects.Especially have great importance to the further genralrlization of high-strength steel welding product.
Description
Technical field
The present invention relates to welding technology fields, and in particular to it is a kind of can plus load high-strength steel welding system and welding
Method.
Background technology
Low-alloy high-strength steel has the excellent performances such as intensity is high, plasticity and toughness are good, gradually replaces carbon steel and is widely used in work
The industries such as journey machinery, harbour machinery, automobile, rolling stock, bridge, chemical industry, pressure vessel, low-alloy high-strength steel is compared to common
Carbon steel, its use intensity and service life improve by about one time, can mitigate under conditions of meeting equality strength from
Body weight, while effectively reducing resource consumption, meets that 21 century is efficient to material, saves the requirement of idea of development, can be me
The economic construction of state brings sizable benefit.As the Main way of China's future steel material research and development.
But low-alloy high-strength steel is during the welding process, is easy to generate greatly and the welding residual stress of concentration, and
Embrittlement phenomena easily occurs for welding heat affected zone, and welded unit can be made to generate stress corrosion cracking or even brittle fracture, serious to reduce
Anti-fatigue performance reduces the service life of component significantly.In order to reduce above-mentioned adverse effect, many technologies are applied, and are being welded
It is exactly to reduce one of the technology of this adverse effect that external applied load is introduced in termination process.External applied load, energy are introduced during the welding process
Enough effects that power is generated to weld seam and its surrounding, change stress value and its distribution of weld seam and its peripheral region, make high strength steel plate
Welding residual stress improved, and grain crystalline state can be changed, make crystal grain refinement, and then improve high-strength steel welding
Toughness, the technologies such as traditional preheating method, heat treatment, hammering all before welding or after welding are handled weldment,
And influence of the external applied load to high-strength steel welding residual stress, structure property is studied in the welding process and is still lacked.
Invention content
It is in order to solve the defects of prior art and insufficient.The present invention provides it is a kind of can plus load high-strength steel welding
System and welding method.
The technical solution that the present invention uses is：It is a kind of can plus load high-strength steel welding system, including by welding
The arc welding system of rifle and welding wire composition, it is described can the high-strength steel welding system of plus load further include having plus load
System, the plus load system includes operating platform, and the operating platform is equipped with for placing high-strength steel to be welded
Carrier, the carrier are made of left carrier and right carrier, and the carrier obtains both sides and is additionally provided with fixture, and the two of the fixture
Side is additionally provided with the driving device for applying outer loading between fixture.
The driving device is hydraulic cylinder, is driven by hydraulic cylinder column between the hydraulic cylinder and fixture, described
It hydraulic cylinder column and is connected through a screw thread between fixture.
The plus load system further includes having oil pump and oil pipe, is connected by oil pipe between the oil pump and hydraulic cylinder
It is logical.
The hydraulic cylinder is equipped with close to the nearly high-strength steel hydraulic fluid port to be welded of hydraulic cylinder column side and far from hydraulic cylinder column side
Remote high-strength steel hydraulic fluid port to be welded, the nearly high-strength steel hydraulic fluid port to be welded and remote high-strength steel hydraulic fluid port to be welded are connected by oil pipe and oil pump
It is logical.
The plus load system further includes the control set for adjusting that control oil enters the position of hydraulic cylinder.
The carrier is equipped with the bolt for fixing high-strength steel to be welded.
The fixture of the carrier side is connected with hydraulic cylinder column, and the fixture of the other side is fixing end.
Fixed plate is additionally provided on the operating platform, the fixed plate is fixed by screw and fixing end fixture to be connected
It connects.
It is a kind of using can plus load high-strength steel welding system welding method, include the following steps：It will be to be welded
Two blocks of high-strength steel to be welded be bolted on carrier, welding gun is disposed vertically in two high strength steel plate width directions to be welded
Between, start oil pump, when oil pump normal operation, apply plus load, when plus load acts on, while starting electric arc welding system
System makes welding wire generate electric arc, and starts to weld along steel plate length direction, makes electric arc and external applied load collective effect in be welded high-strength
Steel.
Applying plus load in the welding method need to pressurize step by step, be applied to by the external applied load on weldering high strength steel plate most
750MPa can be reached greatly.
The beneficial effects of the invention are as follows：The present invention provides it is a kind of can plus load high-strength steel welding system and welding
Method, may be implemented in the welding process, apply external applied load to high-strength steel, under the action of external applied load, can to weld seam and its
Peripheral region generates the effect of power, changes stress value and its distribution of weld seam and its peripheral region, keeps the welding of high strength steel plate residual
Residue stress is improved, and under external load function, can change the crystalline state of crystal grain, makes crystal grain refinement, and then improve
Weld seam and surrounding toughness overcome stress concentration in high-strength steel welding process, the disadvantage of toughness deficiency.The present invention also has
It is simple in structure, it is easy to operate the features such as, the welding system optimizes traditional single electric arc welding for greater flexibility, has wide
Application prospect.Especially have great importance to the further genralrlization of high-strength steel welding product.
Description of the drawings
Fig. 1 is structure of the invention front view.
Fig. 2 is structure of the invention vertical view.
1- welding guns in figure, 2- operating platforms, 3- hydraulic cylinders, 11- welding wires, 21- carriers, 22- fixtures, 23- bolts, 24- are solid
Fixed board, 31- hydraulic cylinder columns, 32- oil pipes, 33- high-strength steel hydraulic fluid ports closely to be welded, 34- high-strength steel hydraulic fluid ports far to be welded.
Specific implementation mode
In order to be more clearly understood that the technology contents of the present invention, spy are lifted following embodiment and are described in detail.
As shown in Figure 1 and Figure 2, it is a kind of can plus load high-strength steel welding system, including by 11 groups of welding gun 1 and welding wire
At arc welding system, it is described can the high-strength steel welding system of plus load further include having plus load system, it is described
Plus load system include operating platform 2, the operating platform 2 is equipped with carrier 21 for placing high-strength steel to be welded,
The carrier 21 is made of left carrier and right carrier, and the carrier 21 obtains both sides and is additionally provided with fixture 22, the fixture 22
Both sides be additionally provided with the driving device for applying outer loading between fixture 22.
The driving device is hydraulic cylinder 3, is driven by hydraulic cylinder column 31 between the hydraulic cylinder 3 and fixture 22.
It the hydraulic cylinder column 31 and is connected through a screw thread between fixture 22.
The plus load system further includes having oil pump and oil pipe 32, passes through oil between the oil pump and hydraulic cylinder 3
Pipe 32 is connected to.
The hydraulic cylinder 3 is equipped with close to the nearly high-strength steel hydraulic fluid port 33 to be welded of 31 side of hydraulic cylinder column and far from hydraulic cylinder column
The remote high-strength steel hydraulic fluid port 34 to be welded of 31 sides, the nearly high-strength steel hydraulic fluid port 33 to be welded and remote high-strength steel hydraulic fluid port 34 to be welded pass through oil
Pipe 32 is connected to oil pump.
Start oil pump, oil enters oil pipe, when waiting oil pumps normal operation, so that oil is closely waited for by both sides by regulation and control system
When weldering high-strength steel hydraulic fluid port enters the hydraulic cylinder on both sides, external applied load shows as pulling force at this time.Start oil pump, oil enters oil pipe, waits oil
When pumping normal operation, when so that oil is entered the hydraulic cylinder on both sides by two outlying high-strength steel hydraulic fluid ports to be welded by regulation and control system,
External applied load shows as pressure at this time.
The plus load system further includes the control set for adjusting that control oil enters the position of hydraulic cylinder 3.
The carrier 21 is equipped with the bolt 23 for fixing high-strength steel to be welded.
The fixture 22 of 21 side of carrier is connected with hydraulic cylinder column 31, and the fixture 22 of the other side is fixing end.
Fixed plate 24 is additionally provided on the operating platform 2, the fixed plate 24 passes through screw and fixing end fixture 22
It is fixedly connected.
It is a kind of using can plus load high-strength steel welding system welding method, include the following steps：It will be to be welded
Two blocks of high-strength steel to be welded be bolted on carrier, welding gun is disposed vertically in two high strength steel plate width directions to be welded
Between, start oil pump, when oil pump normal operation, apply plus load, when plus load acts on, while starting electric arc welding system
System makes welding wire generate electric arc, and starts to weld along steel plate length direction, makes electric arc and external applied load collective effect in be welded high-strength
Steel.
Applying plus load in the welding method need to pressurize step by step, be applied to by the external applied load on weldering high strength steel plate most
750MPa can be reached greatly.
When work, start oil pump, when oil pump normal operation, high-strength steel one end to be welded is first passed through bolt and fixing end
Fixture is attached fixation, and the fixture of the other end and hydraulic cylinder column end works as regulation and control system also by fixation is bolted
When oil being made to enter hydraulic cylinder from nearly high-strength steel hydraulic fluid port to be welded by oil pipe, hydraulic cylinder column is shunk to respective hydraulic cylinder at this time, outer load
Lotus shows as pulling force at this time, starts arc welding system while regulation and control system, so that welding wire is generated electric arc, and along steel
Plate length direction starts to weld, and can make electric arc and external applied load collective effect in high-strength steel to be welded at this time.
When work, start oil pump, when oil pump normal operation, high-strength steel one end to be welded is first passed through bolt and fixing end
Fixture is attached fixation, and the fixture of the other end and hydraulic cylinder column end works as regulation and control system also by fixation is bolted
When oil being made to enter hydraulic cylinder from remote high-strength steel hydraulic fluid port to be welded by oil pipe, hydraulic cylinder column stretches out at this time, external applied load table at this time
It is now pressure, starts arc welding system while regulation and control system, so that welding wire is generated electric arc, and along steel plate length side
To starting to weld, electric arc and external applied load collective effect can be made in high-strength steel to be welded at this time.
In above structure, when carrying out actual welding, it is necessary to pressurize step by step, can not once make to be applied to by weldering high strength steel plate
On power reach very big.And pass through regulating system, thus it is possible to vary external applied load size and the effect being applied on high-strength steel to be welded
The speed of process, is applied to by the external applied load on weldering high strength steel plate that include pulling force and pressure maximum can reach 750MPa.
In the description of the present invention, it should be noted that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the present invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
Every technical staff's notice：Although the present invention is described according to above-mentioned specific implementation mode, of the invention
Invention thought be not limited in the invention, any repacking with inventive concept will all be included in this patent protection of the patent right
In range.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. it is a kind of can plus load high-strength steel welding system, including by welding gun（1）And welding wire（11）The electric arc of composition welds
System, which is characterized in that it is described can the high-strength steel welding system of plus load further include having plus load system, it is described
Plus load system includes operating platform（2）, the operating platform（2）It is equipped with the carrier for placing high-strength steel to be welded
（21）, the carrier（21）It is made of left carrier and right carrier, the carrier（21）Both sides be additionally provided with fixture（22）, institute
The fixture stated（22）Both sides be additionally provided with as fixture（22）Between apply the driving device of outer loading.
2. it is according to claim 1 it is a kind of can plus load high-strength steel welding system, which is characterized in that the drive
Dynamic device is hydraulic cylinder（3）, the hydraulic cylinder（3）With fixture（22）Between pass through hydraulic cylinder column（31）Transmission, the liquid
Cylinder pressure column（31）With with fixture（22）Between be connected through a screw thread.
3. it is according to claim 2 it is a kind of can plus load high-strength steel welding system, which is characterized in that it is described outer
It further includes having oil pump and oil pipe to load G system（32）, the oil pump and hydraulic cylinder（3）Between pass through oil pipe（32）Connection.
4. it is according to claim 3 it is a kind of can plus load high-strength steel welding system, which is characterized in that the liquid
Cylinder pressure（3）It is equipped with close to hydraulic cylinder column（31）The nearly high-strength steel hydraulic fluid port to be welded of side（33）With separate hydraulic cylinder column（31）Side it is remote
High-strength steel hydraulic fluid port to be welded（34）, the nearly high-strength steel hydraulic fluid port to be welded（33）With remote high-strength steel hydraulic fluid port to be welded（34）Pass through oil pipe
（32）It is connected to oil pump.
5. it is according to claim 4 it is a kind of can plus load high-strength steel welding system, which is characterized in that it is described outer
Load G system further includes that control oil enters hydraulic cylinder（3）Position control set for adjusting.
6. it is according to claim 1 it is a kind of can plus load high-strength steel welding system, which is characterized in that the load
Tool（21）It is equipped with the bolt for fixing high-strength steel to be welded（23）.
7. it is according to claim 1 it is a kind of can plus load high-strength steel welding system, which is characterized in that the load
Tool（21）The fixture of side（22）With hydraulic cylinder column（31）It is connected, the fixture of the other side（22）For fixing end.
8. it is according to claim 7 it is a kind of can plus load high-strength steel welding system, which is characterized in that the behaviour
Make platform（2）On be additionally provided with fixed plate（24）, the fixed plate（24）Pass through screw and fixing end fixture（22）It is fixedly connected.
9. it is a kind of using it is described in claim 1 can plus load high-strength steel welding system welding method, feature exists
In including the following steps：Two blocks of high-strength steel to be welded to be welded are bolted on carrier, welding gun is disposed vertically in two
The centre of high strength steel plate width direction to be welded starts oil pump, when oil pump normal operation, applies plus load, in plus load
When effect, while starting arc welding system, so that welding wire is generated electric arc, and start to weld along steel plate length direction, make electric arc
With external applied load collective effect in high-strength steel to be welded.
10. welding method according to claim 9, which is characterized in that applying plus load in the welding method needs
It pressurizes step by step, 750MPa can be reached by the external applied load maximum on weldering high strength steel plate by being applied to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761148.5A CN108672890B (en) | 2018-07-24 | 2018-07-24 | Welding system and welding method for high-strength steel capable of applying external load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810761148.5A CN108672890B (en) | 2018-07-24 | 2018-07-24 | Welding system and welding method for high-strength steel capable of applying external load |
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| CN108672890A true CN108672890A (en) | 2018-10-19 |
| CN108672890B CN108672890B (en) | 2021-02-12 |
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| US20180147648A1 (en) * | 2016-11-30 | 2018-05-31 | Munekata Industrial Machinery Co., Ltd. | Processing apparatus |
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-
2018
- 2018-07-24 CN CN201810761148.5A patent/CN108672890B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0275469A (en) * | 1988-09-12 | 1990-03-15 | Fuji Photo Film Co Ltd | Method and device for joining beltlike metal plates |
| CN101474732A (en) * | 2009-02-03 | 2009-07-08 | 齐齐哈尔轨道交通装备有限责任公司 | Method for welding railway vehicle side wallboard |
| CN204800209U (en) * | 2015-08-01 | 2015-11-25 | 西安科技大学 | Engineering vehicle transaxle shell assembly jig for welding with load adds function in advance |
| CN105643131A (en) * | 2016-03-03 | 2016-06-08 | 天津大学 | Device for testing cold cracking tendency of welding joint on basis of adjustable rigid restraint and apparition of device |
| US20180147648A1 (en) * | 2016-11-30 | 2018-05-31 | Munekata Industrial Machinery Co., Ltd. | Processing apparatus |
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