CN106695103B - A kind of electron beam deep penetration welding penetrates forming real time monitoring detection device - Google Patents
A kind of electron beam deep penetration welding penetrates forming real time monitoring detection device Download PDFInfo
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- CN106695103B CN106695103B CN201611208749.0A CN201611208749A CN106695103B CN 106695103 B CN106695103 B CN 106695103B CN 201611208749 A CN201611208749 A CN 201611208749A CN 106695103 B CN106695103 B CN 106695103B
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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
- B23K15/00—Electron-beam welding or cutting
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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
- B23K15/00—Electron-beam welding or cutting
- B23K15/0026—Auxiliary equipment
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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
- B23K15/00—Electron-beam welding or cutting
- B23K15/0046—Welding
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Abstract
A kind of electron beam deep penetration welding penetrates forming real time monitoring detection device, comprising: line sensing acquisition module, bottom plate accept sliding block and calculate display module.Line sensing acquisition module is used to collect bottom plate and accepts the line generated in sliding block and current signal is converted into voltage signal, voltage signal after conversion is transferred to calculating display module by line sensing acquisition module, display module is calculated by being judged signal and being shown, and sliding block is accepted by bottom plate and adjusts speed of welding.Electron beam deep penetration welding penetrates forming real time monitoring detection device can be to penetrating acquiring and show in real time for line；By studying total electronic beam current and the relationship penetrated between line detected, percolation is established than criterion and forms the real time monitoring that monitoring method realizes the dynamic welding process of electron beam.
Description
Technical field
The present invention relates to metal material processing fields, specifically for a whole set of line acquisition display device particular by real-time
Penetrating line and showing the real time monitoring apparatus reached to electron beam welding, detection used when acquisition electron beam dynamic is welded
Method is based on total electronic beam current and the back side penetrates line relationship schedule, by the research formation criterion to rule come to electron beam depth
Fusion welding is monitored in real time and forms monitoring method.
Background technique
Electron beam welding is that the high pressure (25~300kV) using electronics caused by cathode in electron gun in yin-yang interpolar adds
It is drawn out under fast electric field action, and accelerates to very high speed (0.3~0.7 times of light velocity), focused through level-one or second level magnetic lenses
Afterwards, intensive high-speed electron flow is formed, when it is impinged upon at workpiece joint, kinetic energy is converted to thermal energy, melts material rapidly
Change to achieve the purpose that welding.For electronic beam current in welding material, the electronics of high speed is generating heat work with material surface contact
With while, understand some electronics and dissipate around and become secondary electron, and there are also some electricity when obtaining high quality weld seam
Son can form across weld seam and penetrate line.
A kind of welding method of the electron beam welding as difficult welding material can be in the case where welding quality controls good situation
Guarantee stable weldquality, to guarantee stable weld strength, but if control is bad, then weld strength is difficult to continue guarantor
Card.In order to preferably control the weldquality of electron beam welding, need to monitor electron beam welding process in real time.Currently, very
Study all concentrates on focus current more, and on deflection current and boundling pole tension, but these factors all cannot accurately be embodied and be welded
Journey and weldquality.Patent (ZL201110181575.4) has invented a kind of electron beam current quality inspection device, is detecting
To on the basis of the power density distribution of section, with Marching Cubes algorithm and tri patch mode to electron beam space function
Rate Density Distribution carries out three-dimensionalreconstruction, but the research of this detection Electron Beam Quality is a kind of indirect monitoring method, therefore
The welding process of electron beam can not be monitored in real time.Patent (ZL02153277.X) proposes a kind of determining electron beam welding
The method of parameter, by incrementally increasing input line IbR is compared in the mean value conduction for finding out beam current through work-pieceaWith input line Ib's
Change curve, Ra=Iwp/Ib, obtain critical penetration beam Ic, determine the welding line of through welding state in Ic≤Ib≤Ic+ 5%Ic,
The welding line of lack of penetration state is in Ic- 5%Ic≤Ib≤Ic, this method, which can be quickly found out, suitably welds line raising effect
Rate, but the welding process of electron beam can not equally be monitored in real time." vacuum electron beam welder running quality monitoring technology is ground
Study carefully " (metering is proposed with measuring technology 2015.10.30) accelerates electricity using divider and six Semi-digital multimeter detections
Pressure, utilizes control module CRE31/37 (end I-MON and 0 end) phase of six Semi-digital multimeters and the control cabinet of electron-beam welder
Detection electronic beam current is connect, but these factors can not directly and accurately embody welding process and weldquality." electron-beam welder
Penetrate the monitoring method and application study of line " (equipment manufacturing technology 12 phases in 2015) devise the inspection that electron beam penetrates line
It surveys device line is penetrated to detection and carried out Primary Study, but since its acquisition device is mutually fixed with workbench, using ammeter
The measurement that measurement etc. permits the pass through line is influenced by welding plate length and precision is not high, he rule of thumb describes some bases and wears
The method of saturating line size adjusting process parameter but all relatively more general, lacks the theories integration of system, can not also accomplish to weld
Journey dynamically monitors in real time.Welding is penetrated for laser, " numerical simulation of laser fuU penetration welding temperature field and field of flow " (swashs weldering
Connect journal 12 phases of volume 26 in 2005) it establishes the lower laser penetration welding molten bath of composite heat power supply effect and flows Three-dimensional CAD,
Column heat source of the heat source by acting on the Gauss heat source of laser surface and along laser light incident direction forms, consider respectively etc. from
Daughter and aperture mechanism of absorption, it is to be formed to penetrate weldering laser welding " hourglass " shape molten bath that this method, which discloses Marangoni convection current,
The main reason for pattern, this method only connect laser fuU penetration welding to be simulated and therefore can not also carry out in fact to dynamic welding process
When monitor, and laser is different from electron beam, and the magnitude of current can not be used to monitor in real time as monitoring parameter to entire welding process.And
The also seldom of welding research is penetrated to plasma at present, the monitoring of Plasma Welding is come generally by temperature, pressure etc.
Implement, " vacuum plasma based on PROFIBUS fieldbus welds Design of Monitoring and Control System " (welded tube 1 phases of volume 33 in 2010)
Using PROFIBUS bus network, each control, detection part, monitor etc. are connected and form Plasma Welding monitoring system
System.But the system is only capable of alarming to water, gas and current anomaly, and dynamic welding process can not be accomplished to supervise in real time
Control.Patent (ZL99119342.3) realizes plasma arc welding (PAW) using the spectral radiance of welding arc as direct detection limit
In the process from by the behavior of weldering metal component front real-time detection molten bath aperture and suitable for butt weld, fillet weld and fourth
Font weld seam etc., but this method is not set up with weldquality with welding process with regard to the behavior of aperture and is contacted, it can not be to dynamic
The welding process of state is monitored in real time.
Summary of the invention
The present invention is for the direct monitoring more difficulty of current electron beam welding process and control Weld seam quality control etc.
Problem provides a kind of device that can penetrate line and real-time display in real-time measurement electron beam dynamic welding process, passes through
It studies total electronic beam current and the back side penetrates line relationship schedule and defines percolation ratio, thereby establish weldquality (including weldering
Slip, weld collapse, the welding defects such as weld seam concentric reducer ratio is excessive) with electron beam percolation than criterion to tap into row to electron beam deep penetration welding real
When monitor and form monitoring method.
In order to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of electron beam deep penetration welding penetrates forming real time monitoring detection device, comprising: line sensing acquisition module, bottom plate are held
It connects sliding block and calculates display module.Line sensing acquisition module is used to collect bottom plate and accepts the line generated in sliding block
And current signal is converted into voltage signal, the voltage signal after conversion is transferred to calculating display mould by line sensing acquisition module
Block calculates display module by being judged signal and being shown, and accepts sliding block by bottom plate and adjust speed of welding.
Further, line sensing acquisition module includes sensing acquisition part and electric signal conversion portion, wherein sensing is adopted
Integrate part as faraday's core structure, comprising: the shielding shell of top end opening；
Embedded in the insulating layer of shielding interior of shell, top is equipped with circular open；
And the passive electrode of embedded insulating layer, it is also correspondingly provided with circular open at two, bottom center is placed heat-resisting
Tungsten block.
Electric signal conversion portion is the sensing resistor being arranged between shielding outer casing bottom and insulating layer, sensing resistor one end
Passive electrode is accessed, the other end, which picks out, is connected into calculating display module.
Preferably, shielding shell uses aluminium alloy.
It includes pedestal that bottom plate, which accepts sliding block, and movable working platform, fixture for clamping welding plate, removable to start building
Make platform to move freely by the guide rail realization being arranged on pedestal；
Further, fixture is equipped on four angles of movable working platform.
Further, display module is calculated to receive in line sensing acquisition module by data collecting card shielded cable
Voltage signal is uploaded to computer, then be programmed by computer judge line sensing acquisition module penetrate line and electronics
Voltage signal is converted to current signal real-time display on the display module by the ratio between line.
Detection method based on above-mentioned apparatus, including specific step is as follows:
1, device is adjusted, welding plate is cleaned and one end of welding plate is made to correspond to electron beam ejecting gun, and welding plate thickness is set 5
Between~20mm；
2, welding parameter acceleration voltage V, electronic beam current I are setw, after speed of welding v, welded；
3, in the welding process, electronic beam current remains unchanged, and welding plate is moved with workbench, while being passed by line
Sense acquisition module is collected penetrates line I in real time1、I2。。。Ic；
4, according to percolation ratio Ro=Ic/Iw, calculate percolation and compare RoIf percolation between 20%~45%, is conformed to than R
It asks, welding is stablized at this time；If percolation less than 20% or flows than R greater than 45% than R, it will appear welding defect.
5, collected penetrate after beam current signal can be converted into voltage signal in line sensing acquisition module is transferred to
Data collecting card will penetrate line I by computer programming in real timecWith percolation ratio RoIn computer by way of waveform diagram
On show；
6, line I is penetrated on computerscWaveform diagram on the observation of two straight lines is demarcated on 20% and 45% position
Show that percolation compares waveform diagram on computer.
If meeting the requirements, welding process is steady at this time between two more steady than curve and in calibration straight lines of 6.1 percolations
Fixed, weldquality is excellent；
If 6.2 percolations are than steadily but not between two straight lines of calibration, undesirable, welding process exists at this time
Problem and weldquality is bad；
If between 6.3 two straight lines more steady than curve and in calibration of percolation but have part not two straight lines of calibration it
Between, it indicates that weldquality is preferable at this time, is at weld defect without the part between two straight lines of calibration.
The present invention compares compared with the existing technology, has a significant advantage that
1, electron beam deep penetration welding penetrate forming real time monitoring detection device can be to penetrating acquiring and show in real time for line；
2, it by studying total electronic beam current and the relationship penetrated between line detected, establishes percolation and compares criterion
And form the real time monitoring that monitoring method realizes the dynamic welding process of electron beam.
3, by the adjustable technological parameter of resulting monitoring method, so that good weld seam is obtained, in large batch of weldering
It is improved efficiency in termination process.
4, during dynamic is welded, by flowing than criterion, it can find in real time occur welding defect in welding plate
Position, and these welding defects can not observe with the naked eye generally in welding plate.
Detailed description of the invention
Fig. 1 is line sensing acquisition module sectional view；
Fig. 2 is to penetrate collection of beam current to monitor schematic diagram；
Fig. 3 is sensing acquisition module, and bottom plate accepts sliding block and calculates the schematic diagram of the mutual relationship of display module
Fig. 4 is the flow chart for monitoring the detection method that electron beam dynamic welding penetrates state in real time
Fig. 5 be embodiment 1 in adjust before penetrate line and percolation compares waveform diagram；
Fig. 6 is the pictorial diagram of weld seam before adjusting in embodiment 1；
Fig. 7 is adjusted in embodiment 1 to penetrate line and percolation compares waveform diagram；
Fig. 8 is the pictorial diagram of section of weld joint after adjusting in embodiment 1；
Fig. 9 be embodiment 2 in adjust before penetrate line and percolation compares waveform diagram；
Figure 10 is the pictorial diagram of section of weld joint before adjusting in embodiment 2；
Figure 11 is adjusted in embodiment 2 to penetrate line and percolation compares waveform diagram；
Figure 12 is the pictorial diagram of section of weld joint after adjusting in embodiment 2；
Figure 13 is to penetrate line and percolation compares waveform diagram in embodiment 3；
Figure 14 is the pictorial diagram in the section of weld seam in embodiment 3.
Wherein, 1, movable working platform；2, electronic beam current；3, welding plate；4, fixture；5, guide rail；6, pedestal；7, computer；
8, shielded cable；9, line sensing acquisition mould is fast；10, electron beam ejecting gun；11, focus coil；12, shell is shielded；13, it insulate
Layer；14, passive electrode；15, heat-resisting tungsten block；16, sensing resistor.
Specific embodiment
Below in conjunction with the device and method involved in the present invention will be described in detail of embodiment and attached drawing 2.Through the invention
Application, electron beam welding process can be monitored in real time.Obviously, described embodiment is only of the invention one
Divide embodiment, is not whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made is worked belongs to the range that the present invention is protected.Experimental facilities is
ZD60-6A CV500L type electron-beam welder.
Electron beam deep penetration welding penetrates forming real time monitoring detection device, comprising: line sensing acquisition module, bottom plate, which is accepted, to be slided
Dynamic model block and calculating display module.Line sensing acquisition module is used to collect the line generated in bottom plate undertaking sliding block and will
Current signal is converted into voltage signal, and the voltage signal after conversion is transferred to calculating display module by line sensing acquisition module,
Display module is calculated by being judged signal and being shown, and sliding block is accepted by bottom plate and adjusts speed of welding.
Line sensing acquisition module 9 uses faraday's core structure, and outside is that aluminium alloy shields 60mm high, the bottom of shell 12
For the square of 40 × 40mm, upper end opening is embedding one layer of 5mm away from the 12 bottom position 10mm of aluminum alloy casing with a thickness of 1mm
Thick 13 material of insulating layer is epoxy resin, and the opening of 13 upper end of insulating layer is the circle of radius 15mm, interior in insulating layer 13
The passive electrode 14 of embedding one layer of 5mm thickness, passive electrode 14 are respectively radius 12mm and radius 8mm at upper end and 2/3rds
Circular open structure can be completely absorbed after electronic beam current squeezes into sensing device for guaranteeing, 14 material of passive electrode is H62 yellow
Copper, 14 bottom center of passive electrode place a 20 × 20mm of bottom, the heat-resisting tungsten block 15 of high 5mm, for protecting bottom
Passive electrode 14, aluminium alloy shield the sensing resistor 16 of a built-in 1k Ω at the 10mm between shell 12 and insulating layer 13, screen
8 one end of cable is covered by being cooperatively connected with the threaded hole of 13 bottom M2 × 3mm of insulating layer, and guarantees that the access of shielded cable 8 is received
Collector 14, sensing resistor 5 access in shielded cable, and shielded cable 8 shields shell 12 by aluminium alloy and bottom plate accepts sliding
The circular hole of the radius 2mm on pedestal 6 in module, which picks out, is connected to the external data collecting card calculated in display module.
Bottom plate accepts sliding block by pedestal 6, movable working platform 1 and 4 three parts of fixture composition.Pedestal long 400mm, it is wide
200mm is furnished with 2 guide rails 5 in distance side 30mm punishment and guarantees freely to move with merging for realizing with movable working platform 1
Dynamic, movable working platform surface 1 is a long 120mm, the rectangle of wide 40mm, high 62mm, by the access electronics of movable working platform 1
Beam welding machine control volume system guarantees the movement and movement speed that freely control movable working platform 1.The four of movable working platform 1
Fixture 4 is distributed on a angle to be cooperated by the threaded hole of M4 with bolt, fixture 4 be long 40mm, the cuboid of wide 25mm,
There is slotted eye in centre, passes through hole and the cooperation of movable working platform 1 for bolt to clamp welding plate 3.
It calculates display module and the voltage signal in line sensing acquisition module is received by data collecting card shielded cable 8
Be uploaded to computer 7, then be programmed by computer 7 judge line sensing acquisition module penetrate line and electronic beam current it
Than voltage signal is converted to current signal real-time display on the display module.
Detection method specifically includes as follows:
1, device is adjusted, cleaning welding plate 3 makes one end of welding plate 3 correspond to electron beam ejecting gun 10, focus coil 11 is arranged
Electron beam is focused, and welding plate thickness is set between 5~20mm；
2, welding parameter acceleration voltage V, electronic beam current I are setw, after speed of welding v, welded；
3, in the welding process, electronic beam current 2 remains unchanged, and welding plate 3 is fixed as workbench 1 is moved by fixture 4,
It is collected simultaneously by line sensing acquisition module 9 and penetrates line I in real time1、I2。。。Ic；
4, according to percolation ratio Ro=Ic/Iw, calculate percolation and compare Ro；
5, line I is penetrated by what is measured in real timecCompare R with gained percolation is calculatedoIt is shown on computer 7；
6, what is shown on observation computer 7 penetrates line whether between 20% and 45% two calibration straight lines, if
It then meets the requirements, defect is not present in welding at this time.If percolation less than 20% or flows than R greater than 45% than R, weld in the presence of scarce
It falls into.
Embodiment 1
It is 2A12 aluminium alloy used in experiment, with a thickness of 10mm, there is good plasticity at high temperature, welding performance is good
It is good but easy to oxidize in air.By the oil on weldment surface, rust and oxide are removed, and especially two butting surfaces make first
The oxide on surface is scraped off with scraper, then carries out scouring dehydration with dehydrated alcohol.
Such as attached drawing 2 of welding plate 3 is press-fitted, and guarantees the precision of assembly.Such as attached drawing of line sensing acquisition mould fast 9 is fixed on
On pedestal 6, it is placed in the underface of weld seam.Guarantee that workpiece can be sliding by certain bonding speed on pedestal 6 with workbench 1
It is dynamic.
Selected technological parameter is acceleration voltage 60kV, electronic beam current 20mA, speed of welding 600mm/min.Guarantee electronics
While line gets to welding plate 3, workbench 1 starts to move, and the rate travel of workbench 1 is bonding speed.At the same time, beam
Spread sense acquisition module 9 start collect penetrate line and shown on computer 7.
Observe that the penetrating current shown on computer 7 maintains essentially in 10mA or more, percolation compares RoIt is attached to maintain 50%
It is close to be higher than between normal 20%~45% as shown in Fig. 5, and there is weldering and collapses in the welding plate 3 obtained at this time, weldquality is not
It is good, as shown in Fig. 6.
By the experience tested above, adjusting process parameter, focus point is focused and appropriate turns electron beam down again
It is flow to 15mA, other parameters remain unchanged.
Welding plate 3 is taken to be cleaned, by the oil on weldment surface, rust and oxide are removed, especially two butting surfaces, first
The oxide on surface is scraped off using scraper, then carries out scouring dehydration with dehydrated alcohol.
Such as attached drawing 2 of welding plate 3 is press-fitted, and guarantees the precision of assembly.
It carries out Welding experiment and starts to collect by line sensing acquisition mould fast 9 penetrating line and carrying out on computer 7
Display.
The penetrating current shown on observation computer 7 maintains essentially in 5mA or more, and percolation compares RoAbout 33% such as attached drawing 7
It is shown, meet between normal 20%~45%, and 3 weldquality of welding plate obtained at this time is excellent, as shown in Fig. 8.
Embodiment 2
It is TC4 titanium alloy used in experiment, with a thickness of 10mm, the supply of material of solution treatment state.By the oil on weldment surface, rust
It is removed with oxide, especially two butting surfaces are scraped off the oxide on surface using scraper first, then carried out with dehydrated alcohol
Clean dehydration.
Such as attached drawing 2 of welding plate 3 is press-fitted, and guarantees the precision of assembly.Line sensing acquisition mould fast 9 is fixed on pedestal 6
On, it is placed in the underface of weld seam.Guarantee that workpiece can be slided on pedestal 6 by certain bonding speed with workbench 1.
Selected technological parameter is acceleration voltage 60kV, electronic beam current 35mA, speed of welding 500mm/min.Guarantee electronics
While line gets to welding plate 3, workbench 1 starts to move, and the rate travel of workbench 1 is bonding speed.At the same time, beam
Stream sensing acquisition mould fast 9, which starts to collect, to be penetrated line and is shown on computer 7.
The penetrating current shown on observation computer 7 maintains essentially in 4mA or more, and percolation compares RoIt maintains near 12% such as
Shown in attached drawing 9, between subnormal 20%~45%, and weld seam scale occur excessive for the welding plate 3 obtained at this time
Problem, weldquality is bad, as shown in Fig. 10.
By the experience tested above, adjusting process parameter, focus point is focused and appropriate tunes up electron beam again
It is flow to 40mA, speed of welding is adjusted to 300mm/min.
Welding plate 3 is taken to be cleaned, by the oil on weldment surface, rust and oxide are removed, especially two butting surfaces, first
The oxide on surface is scraped off using scraper, then carries out scouring dehydration with dehydrated alcohol.
Such as attached drawing 2 of welding plate 3 is press-fitted, and guarantees the precision of assembly.
It carries out Welding experiment and starts to collect by line sensing acquisition mould fast 9 penetrating line and carrying out on computer 7
Display.
Observe that the penetrating current shown on computer 7 maintains essentially in 12mA or more, percolation compares RoAbout 30% is such as attached
Shown in Figure 11, meet between normal 20%~45%, and 3 weldquality of welding plate obtained at this time is excellent, as shown in Fig. 8.
Embodiment 3
Experiment used is high-nitrogen austenitic stainless steel, with a thickness of 5mm, is had again while having high-intensitive high tough
Property and corrosion resistance.By the oil on weldment surface, rust and oxide are removed, and especially two butting surfaces use scraper first
The oxide on surface is scraped off, then carries out scouring dehydration with dehydrated alcohol.
Such as attached drawing 2 of welding plate 3 is press-fitted, and guarantees the precision of assembly.Line sensing acquisition mould fast 9 is fixed on pedestal
On, it is placed in the underface of weld seam.Guarantee that workpiece can be slided on pedestal 6 by certain bonding speed with workbench 1.
Selected technological parameter is acceleration voltage 60kV, electronic beam current 20mA, speed of welding 400mm/min.Guarantee electronics
While line gets to welding plate 3, workbench 1 starts to move, and the rate travel of workbench 1 is bonding speed.At the same time, beam
Stream sensing acquisition mould fast 9, which starts to collect, to be penetrated line and is shown on computer 7.
Observe that the penetrating current shown on computer 7 maintains essentially in 5mA or more, percolation compares RoIt maintains near 25%
As shown in Fig. 12, between normal 20%~45%, and the 3 weld seam specific mass of welding plate obtained at this time is excellent, such as 7 institute of attached drawing
Show.
Claims (4)
1. the detection device that a kind of utilization penetrates line real time monitoring electron beam dynamic welding process characterized by comprising beam
Sense acquisition module is spread, bottom plate accepts sliding block and calculates display module；Line sensing acquisition module is held for collecting bottom plate
It connects the line generated in sliding block and current signal is converted into voltage signal, line sensing acquisition module is by the electricity after conversion
Pressure signal is transferred to calculating display module, calculates display module by being judged signal and being shown, and accept by bottom plate
Sliding block adjusts speed of welding；Line sensing acquisition module includes sensing acquisition part and electric signal conversion portion, wherein is passed
Sense collecting part is faraday's core structure, comprising: the shielding shell of top end opening；
Embedded in the insulating layer of shielding interior of shell, top is equipped with circular open；
And the passive electrode of embedded insulating layer, it is also correspondingly provided with circular open at two, bottom center places heat-resisting tungsten block；
Electric signal conversion portion is the sensing resistor being arranged between shielding outer casing bottom and insulating layer, the access of sensing resistor one end
Passive electrode, the other end, which picks out, is connected into calculating display module；Display module is calculated to receive by data collecting card shielded cable
Voltage signal in line sensing acquisition module is uploaded to computer, then is programmed by computer and judges line sensing acquisition
Voltage signal is converted to current signal real-time display on the display module by penetrate the ratio between the line and electronic beam current of module.
2. utilization according to claim 1 penetrates the detection device of line real time monitoring electron beam dynamic welding process,
It is characterized in that, the shielding shell uses aluminium alloy.
3. utilization according to claim 1 penetrates the detection device of line real time monitoring electron beam dynamic welding process,
It is characterized in that, it includes pedestal that bottom plate, which accepts sliding block, and movable working platform, fixture for clamping welding plate, is moved
Workbench is moved freely by the guide rail realization being arranged on pedestal.
4. utilization according to claim 3 penetrates the detection device of line real time monitoring electron beam dynamic welding process,
It is characterized in that, is equipped with fixture on four angles of the movable working platform.
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| CN107438327A (en) * | 2017-08-22 | 2017-12-05 | 华中科技大学 | A kind of plasma electrical signal online measurement apparatus and method |
| CN108237322B (en) * | 2017-10-27 | 2020-09-11 | 南京理工大学 | Real-time monitoring device and method for quality of electron beam dynamic welding seam |
| CN109128417B (en) * | 2018-10-15 | 2021-06-01 | 华北水利水电大学 | Method for beam-electron beam composite brazing of high-nitrogen steel |
| CN109226987B (en) * | 2018-11-12 | 2019-08-27 | 湖南大学 | The comprehensive method directly observed of the small keyhole plasma of metal material penetration fustion welding |
| CN111458324A (en) * | 2020-02-14 | 2020-07-28 | 华智焊测高科(苏州)有限公司 | Detection device and detection method for deep-melting TIG (tungsten inert gas) welding perforation state |
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