CN110512053A - A kind of device based on electromagnetic energy removal welding residual stress - Google Patents
A kind of device based on electromagnetic energy removal welding residual stress Download PDFInfo
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- CN110512053A CN110512053A CN201910256734.9A CN201910256734A CN110512053A CN 110512053 A CN110512053 A CN 110512053A CN 201910256734 A CN201910256734 A CN 201910256734A CN 110512053 A CN110512053 A CN 110512053A
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- 238000003466 welding Methods 0.000 title claims abstract description 85
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000498 cooling water Substances 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 210000001364 upper extremity Anatomy 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 9
- 230000007423 decrease Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000008030 elimination Effects 0.000 description 5
- 238000003379 elimination reaction Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005381 magnetic domain Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000002525 ultrasonication Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/04—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention discloses a kind of device based on electromagnetic energy removal welding residual stress.Device includes: power-supply system, electromagnetic generator system and cooling system；The electromagnetic generator system includes multiple electromagnetic generators, and the electromagnetic generator includes coil and U-iron core, and the coil is wrapped on the U-iron core, and the coil is connect with the power-supply system；For the cooling system for cooling down electromagnetic generator system, the electromagnetic generator system is located at the surface of welded plate to be processed, and the processing time for removing welding residual stress determines according to the length of the welded plate to be processed and the quantity of the U-iron core.The present invention can provide energy needed for eliminating welding residual stress, butt joint microscopic structure will not be had an impact, and the corresponding performance of connector can be improved.The present invention can carry out immediately stress-removal processing with welding equipment, can also carry out stress-removal processing again after welding terminates, and adaptability is stronger.
Description
Technical field
The present invention relates to welding residual stress processing technology fields, residual based on electromagnetic energy removal welding more particularly to one kind
The device of residue stress.
Background technique
The performances such as the intensity of welding residual stress Welded Joints, anticorrosive, antifatigue have a negative impact, when having carried out
Usually corresponding means and measure to be taken to eliminate welding residual stress after welding.In production frequently with method have weldering
Heat treatment, ultrasonication, vibration processing etc. afterwards.Above method is all to apply energy to welding point by specific mode
On, promote connector to generate stress relaxation, to eliminate welding residual stress, that is to say, that it is to disappear that the external world, which provides certain energy,
Except the precondition of welding residual stress.
It can be used for eliminating welding residual stress using energy caused by pulsed magnetic field.Pulse electromagnetic can give welding
The elimination of connector residual stress reduces offer energy, and when electric current is loaded, electric current can be in a very short period of time from 0A
Peak point current is risen to, biggish magnetic field strength can be generated while electric current change dramatically, while with biggish electromagnetic energy.
Dislocation distribution and residual stress in welding point microcosmos area have close ties, when brilliant intracorporal dislocation is opened
When phenomena such as dynamic, merging, homogenization, disappearance occurs, residual stress level can decline rapidly.But dislocation is made to generate the above phenomenon
When, extraneous offer energy is provided, reaches dislocation and the above transition energy changed occurs.And magnetic caused by Square wave pulses electromagnetism
Field and energy can promote connector to start in microcosmos area formation dislocation, microcosmic sliding be generated, so that the dislocation of regional area is close
Degree decline, dislocation cell structure quantity reduce, and dislocation distribution and uniformity are improved, and form plasticity on crystal particle scale and become
Shape generates stress relaxation phenomenon, to eliminate or reduce welding residual stress.Simultaneously as steel material has magnetic conductivity, when
When applying electromagnetic energy, the magnetic domain on welding point crystal particle scale can be made to change, so that micro-plastic deformation is generated, so that residual
The decline of residue stress level.
Post weld heat treatment removal welding residual stress is a kind of method being most widely used in production.This method is simply real
With, but its disadvantage is also obvious.Entire welding structural element need to be put into heating furnace to eliminate connector residual stress by this method
The whole heat treatment of middle progress, reduces connector dislocation density, causes stress relaxation.Although this method can be very good a connector residual
Residue stress is eliminated, but also the performance of connector and base material can be made to have an adverse effect.After this method is handled, connector and base material
Intensity can decline, and plasticity and toughness can also decline, so that causing the overall performance of welding structural element can also decline.Piece table simultaneously
Face can generate a large amount of iron scale, and the surface quality of component will receive influence.After the heat treatment, welded unit can be due to
Stress relaxation is plastically deformed, and leads to scantling accuracy decline, influences assembly etc..
Post weld heat treatment method formulates heat treatment process according to component size and welding point thickness, and component is bigger, connector
Thicker, heat treatment time is longer, and heat treatment efficiency is lower.Ultrasonic processing method removal welding residual stress efficiency is lower,
Used equipment is bulky and hulking, and cost of equipment is higher.Vibrating treatment equipment noise is big, and treatment effeciency is low, can only handle
The lesser welding point of more smooth and thickness.
Summary of the invention
The object of the present invention is to provide a kind of devices based on electromagnetic energy removal welding residual stress, can be improved elimination weldering
Connect the efficiency of residual stress.
To achieve the above object, the present invention provides following schemes:
A kind of device based on electromagnetic energy removal welding residual stress, comprising: power-supply system, electromagnetic generator system；Institute
Stating electromagnetic generator system includes multiple electromagnetic generators, and the electromagnetic generator includes coil and U-iron core, and the coil twines
It is wound on the U-iron core, the coil is connect with the power-supply system；The electromagnetic generator system is located at welding to be processed
The surface of plate removes length and the U-iron core of the processing time of welding residual stress according to the welded plate to be processed
Quantity determine.
Optionally, when temperature is greater than or equal to set temperature value, described device further includes cooling system, the cooling system
System is connect with the electromagnetic generator system, and the cooling system is for cooling down the electromagnetic generator system.
Optionally, when temperature is greater than or equal to set temperature value, the coil of each electromagnetic generator is by more diameters
The copper tube coiling for being 1~3mm for 3~10mm, wall thickness forms, and the coil turn of each electromagnetic generator is 20~100 circles.
Optionally, when temperature is less than set temperature value, the coil of each electromagnetic generator uses diameter for 2~10mm
Red copper wire coiling form.
Optionally, the spacing between each electromagnetic generator is 150~180mm, and each electromagnetic generator bottom is arrived
The distance of the welding point to be processed is 1~10mm, and the inductance of each electromagnetic generator is 200~1000 μ H.
Optionally, described device further includes loading plate, and the loading plate is for connecting, fixing and supporting each electromagnetism hair
Raw device.
Optionally, the U-iron core is folded by the grain-oriented Si steel sheet of 0.2~0.7mm, and the U-iron core includes one
A upper limb and two magnetic heads, for the upper limb with a thickness of 20~120mm, the upper limb height is 10~60mm, and each magnetic head is high
Degree is 100~380mm, and each head width is 20~100mm, the distance between on the inside of two magnetic heads for 150~
180mm。
Optionally, the power-supply system is using output Sasser electric current or triangular current or square wave current or sine wave
The power supply of electric current.
Optionally, the cooling system includes cooling water, circulating pump and water storage box, and the water storage box is described cold for storing
But water, the circulating pump is for pumping the cooling water to the coil inside.
Optionally, the inlet water temperature of the cooling system be 20~30 DEG C, exit water temperature less than 55 DEG C, the cooling water
Flow is 0.5~3m3/h。
The specific embodiment provided according to the present invention, the invention discloses following technical effects: the present invention provides a kind of base
In the device of electromagnetic energy removal welding residual stress, comprising: power-supply system, electromagnetic generator system and cooling system；The electricity
Magnetic flux generator system includes multiple electromagnetic generators, and the electromagnetic generator includes coil and U-iron core, and the coil is wrapped in
On the U-iron core, the coil is connect with the power-supply system；The cooling system is used to cool down electromagnetic generator system,
The electromagnetic generator system is located at the surface of welded plate to be processed.The present invention can provide eliminate needed for welding residual stress
Energy, butt joint microscopic structure will not have an impact, and can not only improve the corresponding performance of connector, and can be improved elimination weldering
Connect the efficiency of residual stress.The present invention can carry out immediately stress-removal processing with welding equipment, can also be after welding terminates again
Stress-removal processing is carried out, adaptability is stronger.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the device composition figure that welding residual stress is removed the present invention is based on electromagnetic energy；
Fig. 2 is electromagnetic generator system structure diagram of the present invention；
Fig. 3 is electromagnetic generator main view of the present invention；
Fig. 4 is electromagnetic generator top view of the present invention；
Fig. 5 is Sasser schematic diagram of the present invention；
Fig. 6 is rectangular wave schematic diagram of the present invention；
Fig. 7 is triangular wave schematic diagram of the present invention；
Fig. 8 is sine wave schematic diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of devices based on electromagnetic energy removal welding residual stress, can be improved elimination weldering
Connect the efficiency of residual stress.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is the device composition figure that welding residual stress is removed the present invention is based on electromagnetic energy.Fig. 2 is electromagnetism of the present invention generation
Device system structure diagram.As depicted in figs. 1 and 2, a kind of device based on electromagnetic energy removal welding residual stress, comprising: electricity
Source system 1 and electromagnetic generator system 2；The electromagnetic generator system 2 includes multiple electromagnetic generators 20, can be used for connecing
On longer product, to improve stress-removal treatment effeciency.The electromagnetic generator includes coil 201 and U-iron core 202,
The coil 201 is wrapped on the U-iron core 202, and the coil 201 is connect with the power-supply system 1；The electromagnetism occurs
Device system 2 is located at the surface of welding point 4 to be processed.Space D between each electromagnetic generator 20 is 150~180mm,
The distance f of each 20 bottom of the electromagnetic generator to the welding point 4 to be processed is 1~10mm, each electromagnetic generator
20 inductance is 200~1000 μ H.Described device further includes loading plate 5, and the loading plate 5 is each for connecting, fixing and supporting
The electromagnetic generator 20, must there is certain rigidity, prevent from deforming during the work time, and the preferable channel steel of rigidity can be selected
Or I-steel, processing time of welding residual stress is removed according to the length of the welded plate to be processed and the U-iron core
Quantity determines.
When temperature is greater than or equal to set temperature value, described device further includes cooling system, the cooling system and institute
The connection of electromagnetic generator system 2 is stated, the cooling system is for cooling down the electromagnetic generator system 2, when the cooling side of device
Formula is water cooling, when air-cooled, mist is cold, and the coil of each electromagnetic generator by more diameters is 3~10mm, wall thickness is 1~3mm's
Copper tube coiling forms, and the coil turn of each electromagnetic generator is 20~100 circles, is carried out between copper pipe by empire silk band
Insulation.Copper pipe diameter can be depending on electromagnetic generator cooling effect.
When temperature is less than set temperature value, for example, when device is natural cooling, the coil of each electromagnetic generator
Diameter is used to form for the red copper wire coiling of 2~10mm.
Fig. 3 is electromagnetic generator main view of the present invention.Fig. 4 is electromagnetic generator top view of the present invention.Such as Fig. 3 and Fig. 4 institute
Show, the U-iron core 202 is folded by the grain-oriented Si steel sheet of 0.2~0.7mm, and the U-iron core 202 includes a upper limb
With two magnetic heads, the upper limb thickness e is 20~120mm, and the upper limb height x is 10~60mm, and each magnetic head height y is
100~380mm, each head width z are 20~100mm, the distance between on the inside of two magnetic heads d be 150~
180mm.Thickness b, height a, the width c of coil can be according to the progress such as the diameter of copper pipe, the number of turns, electromagnetic generator output power
Match.
Fig. 5 is Sasser schematic diagram of the present invention.Fig. 6 is rectangular wave schematic diagram of the present invention.Fig. 7 is triangular wave of the present invention signal
Figure.Fig. 8 is sine wave schematic diagram of the present invention.As viewed in figures 5-8, the power-supply system 1 is using output Sasser electric current or triangle
The power supply of wave electric current or square wave current or sine-wave current.Electric current is exportable after electromagnetic generator to have instantaneous larger magnetic
The function of field intensity, electromagnetic generator can be used mode in parallel and serial and be attached, 1~500A of input current, input voltage
380V exports 10~1000A of peak point current, and duty ratio is 0~100%, and frequency is 10~1000Hz.
The cooling system includes cooling water, circulating pump and water storage box, and the water storage box is for storing the cooling water, institute
Circulating pump is stated for pumping inside the cooling water to the coil 201.The inlet water temperature of the cooling system is 20~30 DEG C,
For exit water temperature less than 55 DEG C, the flow of the cooling water is 0.5~3m3/h。
The present invention can provide energy needed for eliminating welding residual stress, butt joint microscopic structure will not be had an impact, can
To improve the corresponding performance of connector.The present invention can carry out immediately stress-removal processing with welding equipment, can also be in welding end
Carry out stress-removal processing again afterwards, adaptability is stronger.That is, online processing may be implemented in the device of the invention, also may be implemented to weld
Post-processing.When carrying out online processing, which will be matched with speed of welding, it is ensured that unit area receive processing when
Between be 10s~60s.So the number of electromagnetic generator, processing time and speed of welding to be made to match.
It inventive apparatus can be readily adapted the welding point of diversified forms, device efficiency is high, and the magnetic field depth of penetration is big, can
Handle the biggish welding point of thickness.The present invention will not influence the surface quality of welding point, will not change joint microstructure, and
Macroscopical plastic deformation will not occur after processing because of stress relaxation.In cold conditions, welding residual stress can remove about
40%.In hot situation, welding residual stress 50~60% can remove.
The present invention has following advantage:
First, it eliminates welding residual stress and has more specific aim.Welding stress majority is present in weld seam and welding heat affected zone,
And the range and area of weld seam and welding heat affected zone are smaller, can be directly used for weld seam and welding heat affected using the invention device
The higher region of the residual stress such as area eliminates residual stress and has more specific aim.Normative heat treatment can carry out entire welded unit
Heat treatment, although can be removed with the residual stress of Welded Joints, also influences whether the performance of base material, to care for this mistake
That.
Second, it is short that residual stress eliminates the process used time.Using the invention, the unit length processing time is shorter, can basis
Actual welding joint length carries out the selection of electromagnetic generator number, to further decrease the processing time.Normative heat treatment, it is time-consuming
It is longer, according to the thickness of product, 10 hours or more easily.
Third, residual stress are eliminated high-efficient.Due to the invention short processing time, treatment effeciency is high.Normative heat treatment
Time is long, and heat treatment efficiency is lower.
4th, Welded Joints surface quality is without influence.The invention during processing, is not exposed to welding point table
Face, the temperature of processing are that room temperature or postwelding are hot, and temperature is lower, will not generate the secondary defects such as iron scale.
5th, will not the microscopic structures of Welded Joints have an impact.The invention treatment temperature is lower, and connector will not be made aobvious
Micro-assembly robot changes, i.e., will not undergo phase transition.And normative heat treatment can make connector generate tempering phenomenon, form tempered structure,
Change connector microscopic structure.
6th, residual stress elimination equipment is simple, will not generate secondary pollution and harm.The invention device and method letter
It is single, normative heat treatment equipment bulky complex.
7th, there is stronger adaptability.The invention has stronger adaptability, can satisfy different-thickness and type
Welding point.And normative heat treatment is not able to satisfy the product in larger size range.
Specific embodiment 1:
Using Q690 steel plate as welding base metal, test plate (panel) is having a size of 500 × 200 × 15mm, the edge at the 1/2 of test plate (panel) width
Length direction opens " V " shape groove, and bevel angle is 60 °.Welding is using argon-rich mixed gas weldering (MAG weldering), polarity DC
+, welding wire selects flux-cored wire CHT100CK3, and welding process uses Ar+20%CO2Gas shield, gas purity 99.98% with
On.Table 1 is the chemical component of base material and wlding, and table 2 is the mechanical property of material, and table 3 is welding parameter.Welding residual stress is surveyed
Surely blind hole stress free method is used, spotting shares 6 in Weld pipe mill, spacing > 10mm between measuring point.
The chemical component (mass fraction, %) of 1 base material of table and wlding
The mechanical property of 2 material of table
3 welding parameter of table
After welding, welding point to be processed is formed.In the major parameter for influencing to eliminate residual stress, electric current frequency
Rate, duty ratio, peak point current, processing time and the distance of electromagnetic generator bottom to welding point are major influence factors,
In when power frequency is 10Hz, duty ratio 20% when the processing time is 30s, changes peak point current and electromagnetic generator respectively
Four schemes can be obtained to the distance of welding point in bottom.Table 5 is 1 experimental result of scheme, and table 6 is 2 experimental result of scheme, table 7
For 3 experimental result of scheme, table 8 is 4 experimental result of scheme.
4 welding residual stress processing scheme of table
5 scheme of table, 1 experimental result
The residual stress of Blind Hole Technique for Measuring is plane stress, there is X-direction and Y-direction stress.Before handling and treated
Welding point residual stress compares, and stress variation can be obtained, and as shown in Table 5, after the processing of scheme 1, X-direction stress is average
Reduction amplitude is 38%, and it is 24.5% that Y-direction stress, which averagely reduces amplitude,.
6 scheme of table, 2 experimental result
As shown in Table 6, after scheme 2 is handled, it is 45.2% that X-direction stress, which averagely reduces amplitude, and Y-direction stress averagely reduces
Amplitude is 29.4%.
7 scheme of table, 3 experimental result
As shown in Table 7, after scheme 3 is handled, it is 50% that X-direction stress, which averagely reduces amplitude, and Y-direction stress averagely reduces width
Degree is 32.1%.
8 scheme of table, 4 experimental result
As shown in Table 8, after scheme 4 is handled, it is 54.3% that X-direction stress, which averagely reduces amplitude, and Y-direction stress averagely reduces
Amplitude is 41.6%.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand the device of the invention and its core concept；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of device based on electromagnetic energy removal welding residual stress characterized by comprising power-supply system, electromagnetism occur
Device system；The electromagnetic generator system includes multiple electromagnetic generators, and the electromagnetic generator includes coil and U-iron core,
The coil is wrapped on the U-iron core, and the coil is connect with the power-supply system；The electromagnetic generator system is located at
The surface of welded plate to be processed removes length and institute of the processing time of welding residual stress according to the welded plate to be processed
The quantity for stating U-iron core determines.
2. the device according to claim 1 based on electromagnetic energy removal welding residual stress, which is characterized in that when temperature is big
When set temperature value, described device further includes cooling system, the cooling system and the electromagnetic generator system
Connection, the cooling system is for cooling down the electromagnetic generator system.
3. the device according to claim 2 based on electromagnetic energy removal welding residual stress, which is characterized in that when temperature is big
In or when being equal to set temperature value, the coil of each electromagnetic generator by more diameters is 3~10mm, wall thickness is 1~3mm's
Copper tube coiling forms, and the coil turn of each electromagnetic generator is 20~100 circles.
4. the device according to claim 1 based on electromagnetic energy removal welding residual stress, which is characterized in that when temperature is small
When set temperature value, the coil of each electromagnetic generator uses diameter to form for the red copper wire coiling of 2~10mm.
5. the device according to claim 1 based on electromagnetic energy removal welding residual stress, which is characterized in that each electricity
Spacing between magnetic flux generator is 150~180mm, the distance of each electromagnetic generator bottom to the welding point to be processed
For 1~10mm, the inductance of each electromagnetic generator is 200~1000 μ H.
6. the device according to claim 1 based on electromagnetic energy removal welding residual stress, which is characterized in that described device
It further include loading plate, the loading plate is for connecting, fixing and supporting each electromagnetic generator.
7. the device according to claim 1 based on electromagnetic energy removal welding residual stress, which is characterized in that the U-shaped
Iron core is folded by the grain-oriented Si steel sheet of 0.2~0.7mm, the U-iron core include a upper limb and two magnetic heads, it is described on
For edge with a thickness of 20~120mm, the upper limb height is 10~60mm, and each magnetic head height is 100~380mm, each magnetic
Head width is 20~100mm, is 150~180mm the distance between on the inside of two magnetic heads.
8. the device according to claim 1 based on electromagnetic energy removal welding residual stress, which is characterized in that the power supply
System is using output Sasser electric current or the power supply of triangular current or square wave current or sine-wave current.
9. the device according to claim 2 based on electromagnetic energy removal welding residual stress, which is characterized in that the cooling
System includes cooling water, circulating pump and water storage box, and the water storage box is for storing the cooling water, and the circulating pump is for pumping
The cooling water is to the coil inside.
10. the device according to claim 9 based on electromagnetic energy removal welding residual stress, which is characterized in that described cold
But the inlet water temperature of system is 20~30 DEG C, and for exit water temperature less than 55 DEG C, the flow of the cooling water is 0.5~3m3/h。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112795858A (en) * | 2020-12-28 | 2021-05-14 | 内蒙古千山重工有限公司 | Device for eliminating stress of aluminum alloy hub by adopting transverse magnetic flux electromagnetic energy method |
| CN113774301A (en) * | 2021-09-16 | 2021-12-10 | 四川大学 | Method for prolonging fatigue life of welding seam of titanium alloy electron beam welding part through electromagnetic coupling treatment |
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