CN107872905A - A kind of axial workpiece induction heating technology experimental method and experiment porch - Google Patents
A kind of axial workpiece induction heating technology experimental method and experiment porch Download PDFInfo
- Publication number
- CN107872905A CN107872905A CN201610843609.4A CN201610843609A CN107872905A CN 107872905 A CN107872905 A CN 107872905A CN 201610843609 A CN201610843609 A CN 201610843609A CN 107872905 A CN107872905 A CN 107872905A
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- axial workpiece
- draught line
- real
- spacing runner
- interior
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 91
- 238000002474 experimental method Methods 0.000 title claims abstract description 55
- 230000006698 induction Effects 0.000 title claims abstract description 48
- 238000005516 engineering process Methods 0.000 title claims abstract description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002826 coolant Substances 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 7
- 239000000110 cooling liquid Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/101—Induction heating apparatus, other than furnaces, for specific applications for local heating of metal pieces
-
- 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
- Y02P10/25—Process efficiency
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Induction Heating (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of axial workpiece induction heating technology experiment porch, including support, become size coil, drive device, speed change gear, interior draught line, sensing heating module, the pedestal upper end sets spacing runner in upper right, spacing runner in upper left, lower end is then provided with spacing runner in lower-left, the speed change gear being connected with drive device is fixed on platform base and close to support lower right, the interior draught line is wound in the interior driving wheel of speed change gear successively, spacing runner in upper right, spacing runner in upper left, spacing runner in lower-left, the interior draught line will drive the axial workpiece being connected on interior draught line to pass through change size hub of a spool simultaneously, the change size coil connection sensing heating module.The present invention can improve multifrequency technological experiment efficiency, improve technological experiment effect, expand the flexible use range of the fixed exploratory technological experiment equipment of frequency, reduce investment of production equipment cost and maintenance cost.
Description
Technical field
The present invention relates to induction heating technique, specifically a kind of axial workpiece induction heating technology experimental method and reality
Test platform.
Background technology
At present, sensing heating is applied to the heat treatment processes such as quenching, annealing, tempering of axial workpiece, and it is industrially
Extensive use need to establish on the basis of technological experiment, induction heating technology experiment turn into using induction heating technique pass
Key link.There is many drawback drawn games on industrial production is applied for induction heating technology experimental facilities applied to axial workpiece
It is sex-limited.Such as 1：Form to axial workpiece multifrequency technological experiment, its shortcoming are realized using conventional variable-frequency heating equipment：In technique
In experiment, the frequency of variable frequency induction firing equipment can only change in approximate transition in the several frequencies of fixation, it is difficult to realize continuous
Frequency changes and regulation, is unfavorable for optimizing induction heating technology, have impact on technological experiment effect, reduce technological experiment efficiency.
2：The form of tentative technological experiment is carried out to axial workpiece using the induction heating equipment of conventional fixed frequency and power, its
Shortcoming：In technological experiment, frequency or power can not meet when the Technology for Heating Processing of axial workpiece requires, it is necessary to additionally change
The variable frequency induction firing equipment of other frequencies and power bracket, increase technological experiment equipment investment cost and maintenance cost, it is unfavorable
In the flexible application of induction heating technology experimental facilities.
Thus, the technique experimental facilities of axial workpiece variable frequency induction heating at present, it is fixed there is multifrequency technological experiment efficiency is low
Frequently the drawback such as exploratory technological experiment Flexible Equipment difference, and can be replaced without other new induction heating equipments.
The content of the invention
It is an object of the invention to provide a kind of axial workpiece induction heating technology experimental method and experiment porch, one is utilized
Individual copper pipe turns to the induction coil of different-diameter and different spacing to change the mode of induction power supply load, and half transient state is supplied to
Principle with heating load different frequency and different capacity.Multifrequency technological experiment efficiency can be improved, improves technological experiment effect, is expanded
The flexible use range of the big fixed exploratory technological experiment equipment of frequency, reduces investment of production equipment cost and maintenance cost.
In order to reach above-mentioned purpose, present invention employs following technical scheme, a kind of axial workpiece induction heating technology is real
Test platform, including support, become size coil, drive device, speed change gear, interior draught line, sensing heating module, on the support
End sets spacing runner in upper right, spacing runner in upper left, and lower end is then provided with spacing runner in lower-left, is connected with drive device
Speed change gear be fixed on platform base and close to support lower right, the interior draught line is wound in the interior of speed change gear successively
Spacing runner in driving wheel, upper right, spacing runner in upper left, spacing runner in lower-left, while the interior draught line will the company of drive
The axial workpiece being connected on interior draught line connects sensing heating module through size hub of a spool, the change size coil is become.
It is described to become integral structure coil of the size coil into axially consecutive reducing；The sensing heating module is induced electricity
Source.
The pedestal lower end is additionally provided with coolant spout, coolant spout rear side below change size coil.
Also include real-time control module, outer draught line, the pedestal upper end is additionally provided with spacing runner outside upper right, outside upper left
Spacing runner, lower end then set spacing runner outside lower-left, and speed change gear output end also includes outer driving wheel, the outer draught line according to
It is secondary to be wound in spacing runner outside upper right, spacing runner outside upper left, spacing runner, outer driving wheel outside lower-left, the control mould in real time
Block by temperature data line connect temperature sensor, the temperature sensor be arranged on outer draught line and with interior draught line
Axial workpiece with height, the outer draught line is located at outer draught line overall peripheral；The sensing heating module is by sensing number
Real-time control module is connected according to line.
The real-time control module connects drive device by drive control line.
In order to reach above-mentioned another object, present invention employs following technical scheme, a kind of axial workpiece sensing heating work
Skill experimental method, its step are as follows：
The drive device drives axial workpiece steady shift in become size coil to realize by interior draught line
Frequency conversion and the sensing heating of Variable power；When axial workpiece moves in coil, Temperature numerical delta data is recorded；
After the completion of sensing heating, interior draught line drives axial workpiece to the lower end for becoming size coil, coolant spout to
Axial workpiece spray cooling liquid, untill temperature is down to technological requirement.
Real-time control module control is turned on and off temperature sensor, sensing heating module processed, drive device, coolant spray
Mouthful, the drive device by speed change gear complete in driving wheel and the same rotational speed of outer driving wheel.
In sensing heating, the temperature sensor follows the position of axial workpiece movement and real-time Transmission is to control in real time
Module temperature data, after the completion of sensing heating, sensing heating module, interior draught line band moving axis are closed in real-time control module control
For class part to the lower end for becoming size coil, temperature sensor follows the position that axial workpiece moves to the lower end water for becoming size coil
Prosposition is put and is transferred to real-time control module temperature data, treats that temperature is down to technological requirement temperature, real-time control module control is closed
Close coolant spout and stop hydrojet.
Compared to prior art, the invention has the advantages that：
1st, a kind of new axial workpiece induction heating technology experimental method is provided, is industrial axial workpiece sensing heating
Technological experiment provides new method and new way.
2nd, the induction heating equipment of the conversion frequencies of this method and experiment platform device combination prior art uses, and can be achieved
Continuous frequency change and power adjusting, are advantageous to optimize induction heating technology, improve technological experiment effect, improve technological experiment
Efficiency.
3rd, the induction heating equipment of the fixed frequency of this method and experiment platform device combination prior art uses, and can be achieved
A range of continuous frequency conversion and power adjusting, technological experiment equipment investment cost and maintenance cost are reduced, be advantageous to sense
Heat the flexible application of technique experimental facilities.
4th, compact-sized, implementation is simply.
Brief description of the drawings
Fig. 1 is a kind of axial workpiece induction heating technology experiment porch structural representation；
Fig. 2 is a kind of axial workpiece induction heating technology experiment porch partial enlargement structural representation.
In figure：1st, temperature sensor, 2, temperature data line, 3, sensing heating module, 4, sensed data line, 5, control in real time
Module, 6, drive control line, 7, spacing runner outside lower-left, 8, spacing runner in lower-left, 9, coolant spout, 10, platform base,
11st, drive device, 12, speed change gear, 13, outer draught line, 14, interior draught line, 15, support, 16, become size coil, 17, upper right
Interior spacing runner, 18, spacing runner outside upper right, 19, spacing runner in upper left, 20, spacing runner outside upper left, 21, interior driving wheel,
22nd, outer driving wheel.
Embodiment
Detailed description for the present invention and technology contents, coordinate brief description of the drawings it is as follows, but accompanying drawing only provide reference with
Purposes of discussion, not it is used for being any limitation as the present invention.
In order to realize experiment porch of the present invention, it is necessary to according to axial workpiece induction heating technology test frequency and
Power requirement, the prefabricated change size induction coil that can meet technological experiment requirement, needs when technological experiment starts by axle class zero
Part, which is connected on, to be placed on interior draught line on line station as shown in Figure 1.
According to Fig. 1-Fig. 2, a kind of axial workpiece induction heating technology experiment porch, including support 15, change dimension line
Circle 16, drive device 11, speed change gear 12, interior draught line 14, sensing heating module 3, the pedestal upper end set in upper right and limited
Spacing runner 19 in position runner 17, upper left, lower end is then provided with spacing runner 8 in lower-left, the change quick-mounting being connected with drive device
Put and be fixed on platform base and be wound in the interior driving wheel of speed change gear successively close to support lower right, the interior draught line
21st, spacing runner 17 in upper right, spacing runner 19 in upper left, spacing runner 8 in lower-left, while the interior draught line will the company of drive
The axial workpiece being connected on interior draught line connects sensing heating module through size hub of a spool, the change size coil is become.Institute
State and become integral structure coil of the size coil into axially consecutive reducing；The sensing heating module 3 is induction power supply.The branch
Frame lower end is additionally provided with coolant spout 9, coolant spout rear side below change size coil.
Also include real-time control module 5, outer draught line 13, the pedestal upper end be additionally provided with spacing runner 18 outside upper right,
Spacing runner 20 outside upper left, lower end then set spacing runner 7 outside lower-left, and speed change gear output end also includes outer driving wheel 22, institute
State outer draught line 13 and be wound in spacing runner outside upper right, spacing runner outside upper left, spacing runner, outer driving wheel outside lower-left successively,
The real-time control module 5 connects temperature sensor 1 by temperature data line 2, and the temperature sensor is arranged on outer draught line
It is located at outer draught line overall peripheral on 13 and with the axial workpiece on interior draught line with height, the outer draught line；The sense
Heating module 3 is answered to connect real-time control module 5 by sensed data line 4.The real-time control module 5 passes through drive control line 6
Connect drive device 11.The real-time control module is also connected with and controls coolant spout.
Real-time control module is a display controller, use after directly buying.
With reference to the induction heating equipment of the fixed frequency of prior art；Scheme one is as follows：A kind of axial workpiece sensing heating
Technological experiment method, its step are as follows：Open sensing heating module 3 and heat and become size coil, sensing heating module 3 is fixed frequency
Rate induction power supply, the drive device by interior draught line drive axial workpiece in size coil is become steady shift come reality
Existing frequency conversion and the sensing heating of Variable power；When axial workpiece moves in coil, Temperature numerical delta data is recorded；Add in sensing
After the completion of heat, interior draught line drives axial workpiece to the lower end for becoming size coil, and coolant spout is to axial workpiece spray cooling
Liquid, untill temperature is down to technological requirement.
With reference to the induction heating equipment of the conversion frequencies of prior art；Scheme two is as follows：A kind of axial workpiece sensing heating
Technological experiment method, its step are as follows：Open sensing heating module 3 and heat and become size coil, sensing heating module 3 is frequent for change
Rate induction power supply, the drive device by interior draught line drive axial workpiece in size coil is become steady shift come reality
Existing frequency conversion and the sensing heating of Variable power；When axial workpiece moves in coil, Temperature numerical delta data is recorded；Add in sensing
After the completion of heat, interior draught line drives axial workpiece to the lower end for becoming size coil, and coolant spout is to axial workpiece spray cooling
Liquid, untill temperature is down to technological requirement.
With reference to the induction heating equipment of the fixed frequency of prior art；Scheme three is as follows：
Sensing heating module 3 is fixed frequency induction power supply, and real-time control module 5 controls opening temperature sensor 1, then
Real-time control module 5 opens sensing heating module 3 processed, while drive device 11, drive device are opened in the control of real-time control module 5
11 complete interior driving wheel 21 and outer 22 same rotational speed of driving wheel by speed change gear 12, according to the frequency conversion of technological experiment and become work(
The requirement of rate, interior draught line 14 drive axial workpiece steady shift in size coil 16 is become to realize frequency conversion and Variable power
Sensing heating, temperature sensor 1 follow axial workpiece move position and real-time Transmission give the temperature number of real-time control module 5
According to after the completion of sensing heating, sensing heating module 3 is closed in the control of real-time control module 5, and interior draught line 14 drives axial workpiece
To the lower end for becoming size coil 16, real-time control module 5 controls the spray cooling liquid of coolant spout 9, and temperature sensor 1 follows axle
The position of class part movement to the lower end horizontal level for becoming size coil 16 and is transferred to the temperature data of real-time control module 5, treats
Temperature is down to technological requirement temperature, and the control of real-time control module 5 closes coolant spout and stops hydrojet, and real-time control module 5 is controlled
Drive device 11 processed and temperature sensor 1.
With reference to the induction heating equipment of the conversion frequencies of prior art；Scheme four is as follows：
Sensing heating module 3 is conversion frequencies induction power supply, and real-time control module 5 controls opening temperature sensor 1, then
Real-time control module 5 opens sensing heating module 3 processed, and according to technological experiment needs, adjustment sense is completed by real-time control module 5
The frequency and power of the output of heating module 3 are answered, drive device 11 is opened in the control of real-time control module 5, and drive device 11 passes through
Speed change gear 12 completes interior driving wheel 21 and outer 22 same rotational speed of driving wheel, according to the frequency conversion of technological experiment and Variable power will
Ask, interior draught line 14 drives axial workpiece steady shift in size coil 16 is become to realize the sensing of frequency conversion and Variable power
Heating, temperature sensor 1 follows the position of axial workpiece movement and real-time Transmission gives the temperature data of real-time control module 5, technique
In experimentation, the frequency and work(of the output of sensing heating module 3 can be adjusted by real-time control module 5 according to technological requirement
Rate.After the completion of sensing heating, sensing heating module 3 is closed in the control of real-time control module 5, and interior draught line 14 drives axial workpiece
To the lower end for becoming size coil 16, real-time control module 5 controls the spray cooling liquid of coolant spout 9, and temperature sensor 1 follows axle
The position of class part movement to the lower end horizontal level for becoming size coil 16 and is transferred to the temperature data of real-time control module 5, treats
Temperature is down to technological requirement temperature, and the control of real-time control module 5 closes coolant spout and stops hydrojet, and real-time control module 5 is controlled
Drive device 11 processed and temperature sensor 1.
The inventive method and experiment porch are more beneficial for the implementation of the induction heating technology experiment of axial workpiece, effectively change
Kind thermal effectiveness, improve heat treatment efficiency, expand Flexible Equipment production capacity, reduce investment of production equipment cost and maintenance into
This.The present invention is with a wide range of applications to axial workpiece induction heating technology experimental technique field.
Presently preferred embodiments of the present invention is the foregoing is only, is not used to limit the scope of the claims of the present invention, other are with this
The equivalence changes of the patent spirit of invention, it all should all belong to the scope of the claims of the present invention.
Claims (8)
1. a kind of axial workpiece induction heating technology experiment porch, it is characterised in that including support, become size coil, driving dress
Put, speed change gear, interior draught line, sensing heating module, the pedestal upper end sets spacing runner in upper right, spacing turn in upper left
Wheel, lower end are then provided with spacing runner in lower-left, and the speed change gear being connected with drive device is fixed on platform base and close
Support lower right, the interior draught line are wound in the interior driving wheel of speed change gear, spacing runner in upper right, spacing in upper left successively
Spacing runner in runner, lower-left, while the interior draught line will drive the axial workpiece being connected on interior draught line to pass through change chi
Very little hub of a spool, the change size coil connection sensing heating module.
A kind of 2. axial workpiece induction heating technology experiment porch according to claim 1, it is characterised in that the change chi
Very little coil is the integral structure coil of axially consecutive reducing；The sensing heating module is induction power supply.
A kind of 3. axial workpiece induction heating technology experiment porch according to claim 1, it is characterised in that the support
Lower end is additionally provided with coolant spout, coolant spout rear side below change size coil.
4. a kind of axial workpiece induction heating technology experiment porch according to claim 1, it is characterised in that also include real
When control module, outer draught line, the pedestal upper end is additionally provided with spacing runner outside upper right, spacing runner outside upper left, and lower end is then
Spacing runner outside lower-left is set, and speed change gear output end also includes outer driving wheel, and the outer draught line is wound in outside upper right successively
Spacing runner outside spacing runner, upper left, spacing runner, outer driving wheel outside lower-left, the real-time control module pass through temperature data
Line connects temperature sensor, and the temperature sensor is arranged on outer draught line and with the axial workpiece on interior draught line with high
Degree, the outer draught line are located at outer draught line overall peripheral；The sensing heating module connects control in real time by sensed data line
Molding block.
5. a kind of axial workpiece induction heating technology experiment porch according to claim 4, it is characterised in that described real-time
Control module connects drive device by drive control line.
6. a kind of axial workpiece induction heating technology experimental method, its step are as follows：
The drive device drives axial workpiece steady shift in become size coil to realize frequency conversion by interior draught line
With the sensing heating of Variable power；When axial workpiece moves in coil, Temperature numerical delta data is recorded；
After the completion of sensing heating, interior draught line drives axial workpiece to the lower end for becoming size coil, and coolant spout is to axle class
Part spray cooling liquid, untill temperature is down to technological requirement.
7. a kind of axial workpiece induction heating technology experimental method according to claim 6, it is characterised in that described real-time
Control module control is turned on and off temperature sensor, sensing heating module processed, drive device, coolant spout, the driving
Device by speed change gear complete in driving wheel and the same rotational speed of outer driving wheel.
8. a kind of axial workpiece induction heating technology experimental method according to claim 7, it is characterised in that add in sensing
When hot, the temperature sensor follows the position of axial workpiece movement and real-time Transmission gives real-time control module temperature data,
After the completion of sensing heating, sensing heating module is closed in real-time control module control, and interior draught line drives axial workpiece to becoming size
The lower end of coil, temperature sensor follow the position that axial workpiece moves to the lower end horizontal level for becoming size coil and are transferred to
Real-time control module temperature data, treat that temperature is down to technological requirement temperature, real-time control module control is closed coolant spout and stopped
Only hydrojet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843609.4A CN107872905B (en) | 2016-09-23 | 2016-09-23 | Experimental method and experimental platform for induction heating process of shaft parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843609.4A CN107872905B (en) | 2016-09-23 | 2016-09-23 | Experimental method and experimental platform for induction heating process of shaft parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107872905A true CN107872905A (en) | 2018-04-03 |
| CN107872905B CN107872905B (en) | 2024-04-09 |
Family
ID=61751090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610843609.4A Active CN107872905B (en) | 2016-09-23 | 2016-09-23 | Experimental method and experimental platform for induction heating process of shaft parts |
Country Status (1)
| Country | Link |
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| CN (1) | CN107872905B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475683A (en) * | 2020-11-24 | 2021-03-12 | 中车大连机车车辆有限公司 | Device and method for preheating circumferential weld joint and heating and slow cooling |
| CN113106447A (en) * | 2021-05-10 | 2021-07-13 | 中国石油大学(华东) | Device and method for variable-frequency induction gradient cladding of shaft parts |
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| TW321016U (en) * | 1996-06-26 | 1997-11-21 | guang-rong Lin | Improved structure for drill transmission device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475683A (en) * | 2020-11-24 | 2021-03-12 | 中车大连机车车辆有限公司 | Device and method for preheating circumferential weld joint and heating and slow cooling |
| CN113106447A (en) * | 2021-05-10 | 2021-07-13 | 中国石油大学(华东) | Device and method for variable-frequency induction gradient cladding of shaft parts |
| CN113106447B (en) * | 2021-05-10 | 2023-10-03 | 中国石油大学(华东) | Variable-frequency induction gradient cladding device and method for shaft parts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107872905B (en) | 2024-04-09 |
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