CN107900507A - The pulse current prosthetic device and method of micro-crack in a kind of metal tube - Google Patents
The pulse current prosthetic device and method of micro-crack in a kind of metal tube Download PDFInfo
- Publication number
- CN107900507A CN107900507A CN201711123865.7A CN201711123865A CN107900507A CN 107900507 A CN107900507 A CN 107900507A CN 201711123865 A CN201711123865 A CN 201711123865A CN 107900507 A CN107900507 A CN 107900507A
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- China
- Prior art keywords
- metal tube
- crack
- micro
- pulse current
- spiral winding
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Classifications
-
- 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
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
Abstract
The pulse current prosthetic device and method of micro-crack in a kind of metal tube, are related to the crack arrest of micro-crack and repair field.The present invention is to solve the existing method handled using pulse current metal, since pulse current density is larger, for the part of non-tablet class, the particularly part of tubulose, exist clamping it is relatively difficult, easily there is loose contact, there are certain risk for operation, in addition, the problem of existing repair the crackle in metal tube using induction heating power, but this method is poor to the repairing effect of the metal tube of nonferromugnetic material.The pulse power to spiral discharge coil, and utilizes fixing axle support metal tube under the discharge voltage of 1KV~20KV, the deformation that extruding of the spiral winding to metal tube produces is limited, so as to fulfill the crack arrest and reparation to metal tube micro-crack.It is used to repair micro-crack in metal tube.
Description
Technical field
The present invention relates to the pulse current prosthetic device and method of micro-crack in a kind of metal tube.Belong to stopping for micro-crack
Split and repair field.
Background technology
In modern industry, metal is widely used in military affairs, Aeronautics and Astronautics, ship, vehicle fortune as main raw material(s)
Many engineering fields such as defeated, machine-building.Metallic material components occur for various reasons during manufacture and use to be split
Rupture failure just occurs for line, the strength degree that the extension of crackle causes structural member to be also far from reaching material, so as to actual raw
Production and life bring immeasurable loss.
In the prior art, the method for relatively common a kind of crackle crack arrest and reparation is that metal is carried out using pulse current
Processing.When the larger pulse current of current density passes through crackle, the subregion of crackle obtains soldering, so that the portion by crackle
Subregion is repaired, while prevents further expanding for crackle, reaches the effect of crack arrest and reparation.This method, which has, repairs
It hurry up, the advantages of small influenced on peripheral region.But since pulse current density is larger, for the part of non-tablet class, it is particularly
The part of tubulose, it is relatively difficult to there is clamping, loose contact easily occurs, there are the problem of certain risk for operation.It is in addition, existing
There is technology using induction heating power to be repaired to the crackle in metal tube, but this method is to nonferromugnetic material
Metal tube repairing effect it is poor.
The content of the invention
The present invention is in order to solve the existing method handled using pulse current metal, due to pulse current density
Larger, for the part of non-tablet class, the particularly part of tubulose, it is relatively difficult to there is clamping, loose contact easily occurs, grasps
Make there are certain risk, in addition, existing repair the crackle in metal tube using induction heating power, but this
The problem of kind method is poor to the repairing effect of the metal tube of nonferromugnetic material.Micro-crack in a kind of metal tube is now provided
Pulse current prosthetic device and method.
The pulse current prosthetic device of micro-crack in a kind of metal tube, it includes the pulse power 110, spiral winding 120
With fixing axle 130,
Metal tube 140 is nested and is fitted in the outer surface of fixing axle 130, and spiral winding 120 is nested and is fitted in metal
The outer surface of pipe fitting 140,
The pulse power 110 is powered for spiral winding 120, the pulse power 110 using capacitor 111 to spiral winding 120 into
Row electric discharge, fixing axle 130 are used to limit the deformation that extruding of the spiral winding 120 to metal tube 140 produces；Capacitor 111
Discharge voltage is 1KV~20KV.
Preferably, the material of fixing axle is stainless steel or resin material.
Preferably, spiral winding 120 includes insulating layer 121 and copper wire 122,
The inside of insulating layer 121 is wrapped in copper wire 122, and insulating layer 121 is nested and is fitted in the appearance of metal tube 140
Face.
Preferably, spiral winding 120 is copper coil.
Preferably, the pulse power 110 further includes switch 112, inductance 113 and resistance 114,
One end of switch 112 and one end of inductance 113 connect the both ends of spiral winding 120 respectively, switch 112 other end
Connect one end of capacitor 111, one end of the other end connection resistance 114 of capacitor 111, the other end connection electricity of resistance 114
The other end of sense 113；
Inductance 113 and capacitor 111 form LC oscillating circuits, for producing the pulse current of sinusoidal decay distribution；Resistance
114 size for adjusting pulse current；Switch 112 is used for the on or off for controlling power supply.
The pulse current restorative procedure of micro-crack in a kind of metal tube, this method are micro-cracks in a kind of metal tube
What pulse current prosthetic device was realized, this method is：
The pulse power 110 discharges spiral winding 120 under the discharge voltage of 1KV~20KV, and utilizes fixing axle 130
Metal tube 140 is supportted, the deformation that extruding of the spiral winding 120 to metal tube 140 produces is limited, so as to fulfill to metal tube
The crack arrest and reparation of 140 micro-crack of part.
Beneficial effects of the present invention are：
The application is realized using the pulse power using capacitor discharges spiral winding, makes metal tube induced inside
Go out current vortex and Lorentz force, when the discharge voltage of capacitor in the pulse power is 1KV~20KV, current vortex streams crackle,
Sufficiently high temperature can be produced in cracks so that cracks melt and produce hot pressing stress under compression and cause microcrack healing.And
Lorentz force can be deformed metal tube, therefore the application is provided with fixing axle to limit the deformation of metal tube, at the same time
Lorentz force extrudes the side wall of metal tube so that micro-crack is easier to be repaired.In order to realize preferable effect, metal tube
It is bonded with the outer surface of fixing axle.In order to realize higher transfer efficiency, metal tube on the inside of spiral winding with being bonded.In order to protect
Protect spiral winding, the surface of spiral winding covered with insulating layer, its wrap up inside copper wire.In addition, spiral winding and metal tube
Part coaxial placement is also beneficial to the raising of capacity usage ratio.
The application can realize and efficiently the micro-crack crackle in metal tube is repaired, while not change metal tube
The shape and tissue of part.Remediation efficiency improves more than 5 times compared with prior art.
Brief description of the drawings
Fig. 1 be embodiment one described in a kind of metal tube in micro-crack pulse current prosthetic device structure
Schematic diagram；
Fig. 2 is the profile of A-A in Fig. 1.
Embodiment
The present invention will be further described with reference to the accompanying drawings.
In the prior art, the method handled using pulse current metal is right since pulse current density is larger
In the part of non-tablet class, the particularly part of tubulose, it is relatively difficult to there is clamping, loose contact easily occurs, operation exists
The problem of certain risk.In addition, the prior art repairs the micro-crack in metal tube using induction heating power,
But this method is poor to the repairing effect of the metal tube of nonferromugnetic material, and this method is a kind of laser heating
Process, heat affected area are bigger.Relative to ferrimagnets such as steel, the nonferromugnetic material such as magnesium alloy, titanium alloy, aluminium alloy
Magnetic inductive capacity is weaker, and the power supply of the type such as induction heating power of the prior art is generally all difficult to inside magnesium alloy tube
Produce sufficiently large electric current.In this application, spiral winding can be carried out by using 1-20KV high voltage pulses power supply short
Time electric discharge induces current vortex in nonferromagnetic inside pipe fitting.When current vortex streams the micro-crack of nonferromagnetic inside pipe fitting,
Microcrack healing can be acted on.For above-mentioned technological deficiency, the embodiment of the present application proposes micro-crack in a kind of metal tube
Pulse current prosthetic device and method.
Embodiment one：
Fig. 1 shows a kind of structural representation of the pulse current prosthetic device of micro-crack in metal tube in embodiment one
Figure.Fig. 2 shows the profile of A-A in Fig. 1.The device is used to carry out crack arrest to the micro-crack occurred in metal tube and repaiies
It is multiple.The device can be used for carrying out magnesium alloy tube, stainless steel pipe, titanium alloy pipe fitting, Aluminum Alloy Tube etc. crack arrest and repair
It is multiple.
Referring to Figures 1 and 2, the present embodiment, this implementation are illustrated so that the micro-crack to magnesium alloy tube is repaired as an example
The crack arrest of micro-crack and prosthetic device include the pulse power 110, spiral winding 120 and fixing axle in a kind of metal tube of example
130,
Magnesium alloy tube is nested and is fitted in the outer surface of fixing axle 130, and spiral winding 120 is nested and is fitted in magnesium alloy
The outer surface of pipe fitting.Here magnesium alloy tube is prepared by spinning, certainly in other embodiments of the invention, magnesium
Alloy is still prepared by other means, such as extruding, bulging etc..
The pulse power 110 is powered for spiral winding 120, the pulse power 110 using capacitor 111 to spiral winding 120 into
Row electric discharge, fixing axle 130 are used to limit the deformation that extruding of the spiral winding 120 to magnesium alloy tube produces；Capacitor 111 is put
Piezoelectric voltage is 1KV~20KV；
After capacitor 111 discharges, release pulse current can be carried out to spiral winding 120；
Spiral winding 120 is copper coil, is conducive to reduce the loss of resistance.
In order to more preferably control the pulse power 110, in actual production, specifically, the pulse power further includes switch 112, electricity
Sense 113 and resistance 114,
They are with 111 built-up circuit of capacitor.Inductance 113 forms LC oscillating circuits with capacitor 111, so as to produce sine
The pulse current of attenuation distribution, resistance 114 can be with size of current in adjustment circuit, and the switch of power supply can be controlled by switching 112.
Below with micro-crack in a kind of metal tube including the pulse power 110, spiral winding 120 and fixing axle 130
Illustrate the operation principle of the present embodiment exemplified by crack arrest and prosthetic device.
The internal diameter of magnesium alloy tube is depending on the outside diameter of fixing axle 130, and the outside diameter of magnesium alloy tube is according to spiral winding
Depending on 120 internal diameter, in practical application, selecting 120 He of spiral winding of corresponding size according to the specification of magnesium alloy tube
Fixing axle 130 is bonded with magnesium alloy tube.
In actual production, micro-crack occurs in the inside of magnesium alloy tube, and the scale of these micro-cracks is very small, remote small
It is difficult to repair in the scale of the macroscopic crackings such as fatigue crack.In the present embodiment, the pulse power 110 is by spiral winding
120 electric discharges go out current vortex in magnesium alloy tube induced inside.When current vortex streams the micro-crack inside magnesium alloy tube, meeting split
Line, which produces, to stream and produces temperature rise here.But magnesium alloy tube is paramagnetic material, in the prior art, magnesium closes
Golden pipe fitting will not generally be handled with induction mode, and the power supply of the type such as induction heating power of the prior art is generally all difficult
To produce sufficiently large electric current inside magnesium alloy tube.
The present embodiment, the discharge voltage of the capacitor in the pulse power 110 is controlled in 1KV~20KV, in the electric discharge
Under voltage, the pulse power 110 discharges spiral winding 120 using capacitor 111, magnesium alloy tube induced inside is gone out electricity
Vortex, when current vortex is around the micro-crack flowing to inside magnesium alloy tube, raises the temperature at micro-crack, so that micro-crack
Place melts and produces hot pressing stress under compression and make microcrack healing, but magnesium alloy tube can be subject to Lorentz lorentz in electromagnetic field at the same time
Power can cause magnesium alloy tube to be deformed.Therefore fixing axle 130 is also provided with to limit magnesium alloy tube in the present embodiment
Deformation, while the side wall of Lorentz force extrusion magnesium alloy pipe fitting so that micro-crack is easier to be repaired.In order to realize preferable effect
Fruit, magnesium alloy tube are bonded with the outer surface of fixing axle 130.In order to realize higher transfer efficiency, magnesium alloy tube with it is spiral
The fitting of the inner side of coil 120.In order to protect spiral winding, covered with insulating layer 121, it wraps up internal on the surface of spiral winding 120
Copper wire 122.In addition, spiral winding 120 is also beneficial to the raising of capacity usage ratio with magnesium alloy tube coaxial placement.
In addition, in order to reduce the fever inside fixing axle 130 in processing procedure, in the present embodiment, the material of fixing axle 130
Matter elects stainless steel or resin material etc. as.
Based on above-mentioned analysis, it is seen that the pulse current prosthetic device of micro-crack can be brought in a kind of metal tube of the present embodiment
It is as follows
Beneficial effect：
The application can realize and efficiently the micro-crack crackle in magnesium alloy tube is repaired, while not change magnesium conjunction
The shape and tissue of golden pipe fitting.
Embodiment two：
Fig. 1 shows a kind of structural representation of the pulse current prosthetic device of micro-crack in metal tube in embodiment one
Figure.Fig. 2 shows the profile of A-A in Fig. 1.The device is used to carry out crack arrest to the micro-crack occurred in metal tube and repaiies
It is multiple.The device can be used for carrying out magnesium alloy tube, stainless steel pipe, titanium alloy pipe fitting, carbon steel pipe fitting, Aluminum Alloy Tube etc.
Crack arrest and reparation.
Referring to Figures 1 and 2, the present embodiment, this implementation are illustrated so that the micro-crack to magnesium alloy tube is repaired as an example
Example is a kind of pulse current restorative procedure of micro-crack in metal tube, and this method is based on micro-crack in a kind of metal tube
What pulse current prosthetic device was realized, this method is：
The pulse power 110 discharges spiral winding 120 under the discharge voltage of 1KV~20KV, makes inside magnesium alloy tube
Current vortex and Lorentz force are induced, which makes the temperature of cracks around flowing at the micro-crack inside magnesium alloy tube
Rise so that melt at micro-crack and produce hot pressing stress under compression and realize microcrack healing, while magnesium is extruded by Lorentz force
Alloy pipe fitting side wall so that micro-crack is more easy to heal, and utilizes fixing axle 130 to support magnesium alloy tube, limits Lorentz force
The deformation that extruding to magnesium alloy tube produces, so as to fulfill the crack arrest and reparation to magnesium alloy tube micro-crack.
Based on above-mentioned analysis, it is seen that the pulse current restorative procedure of micro-crack can be brought in a kind of metal tube of the present embodiment
It is as follows
Beneficial effect：
The application can realize and efficiently the micro-crack crackle in magnesium alloy tube is repaired, while not change magnesium conjunction
The shape and tissue of golden pipe fitting.
Claims (6)
- A kind of 1. pulse current prosthetic device of micro-crack in metal tube, it is characterised in that it include the pulse power (110), Spiral winding (120) and fixing axle (130),Metal tube (140) is nested and is fitted in the outer surface of fixing axle (130), and spiral winding (120) is nested and is fitted in gold Belong to the outer surface of pipe fitting (140),The pulse power (110) is powered for spiral winding (120), and the pulse power (110) is using capacitor (111) to spiral winding (120) discharge, fixing axle (130) is used to limit the change that extruding of the spiral winding (120) to metal tube (140) produces Shape；The discharge voltage of capacitor (111) is 1KV~20KV.
- 2. according to claim 1 in a kind of metal tube micro-crack pulse current prosthetic device, it is characterised in that it is fixed The material of axis (130) is stainless steel or resin material.
- 3. according to claim 1 in a kind of metal tube micro-crack pulse current prosthetic device, it is characterised in that it is spiral Coil (120) includes insulating layer (121) and copper wire (122),The inside of insulating layer (121) is wrapped in copper wire (122), and insulating layer (121) is nested and is fitted in the outer of metal tube (140) Surface.
- 4. according to claim 1 in a kind of metal tube micro-crack pulse current prosthetic device, it is characterised in that it is spiral Coil (120) is copper coil.
- 5. according to claim 1 in a kind of metal tube micro-crack pulse current prosthetic device, it is characterised in that pulse Power supply (110) further includes switch (112), inductance (113) and resistance (114),Inductance (113) and capacitor (111) composition LC oscillating circuits, for producing the pulse current of sinusoidal decay distribution；Resistance (114) it is used for the size for adjusting pulse current；Switch (112) is used for the on or off for controlling power supply.
- 6. the pulse current restorative procedure of micro-crack in a kind of metal tube, this method are based on one kind described in claim 1 The pulse current prosthetic device of micro-crack is realized in metal tube, it is characterised in that this method is：The pulse power (110) discharges spiral winding (120) under the discharge voltage of 1KV~20KV, and utilizes fixing axle (130) Metal tube (140) is supported, limits the deformation that extruding of the spiral winding (120) to metal tube (140) produces, so as to fulfill Crack arrest and reparation to metal tube (140) micro-crack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711123865.7A CN107900507A (en) | 2017-11-14 | 2017-11-14 | The pulse current prosthetic device and method of micro-crack in a kind of metal tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711123865.7A CN107900507A (en) | 2017-11-14 | 2017-11-14 | The pulse current prosthetic device and method of micro-crack in a kind of metal tube |
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| CN201711123865.7A Pending CN107900507A (en) | 2017-11-14 | 2017-11-14 | The pulse current prosthetic device and method of micro-crack in a kind of metal tube |
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Cited By (5)
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| CN108555526A (en) * | 2018-04-28 | 2018-09-21 | 南京航空航天大学 | A kind of hot-work die crack forming mechanism device and restorative procedure |
| CN109338093A (en) * | 2018-11-16 | 2019-02-15 | 中国科学院金属研究所 | A kind of electric pulse treating method reducing steel material fatigue crack growth rate |
| CN109551168A (en) * | 2019-01-17 | 2019-04-02 | 惠州市普盈金属科技有限公司 | A kind of finishing processing method of metal special section surface hallrcuts |
| CN109807449A (en) * | 2019-01-18 | 2019-05-28 | 重庆科技学院 | A kind of electromagnetic pulse welding combination of sets chinaware |
| GB2617883A (en) * | 2022-11-08 | 2023-10-25 | Univ Shanghai Maritime | An on-line monitoring system and a method of crack arresting via pulse current and crack state detecting using the same |
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| CN108555526A (en) * | 2018-04-28 | 2018-09-21 | 南京航空航天大学 | A kind of hot-work die crack forming mechanism device and restorative procedure |
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| GB2617883A (en) * | 2022-11-08 | 2023-10-25 | Univ Shanghai Maritime | An on-line monitoring system and a method of crack arresting via pulse current and crack state detecting using the same |
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Application publication date: 20180413 |
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