CN105483694B - A kind of laser cladding apparatus of oblique cone bench-type sealing surface of valve plate for large size valve - Google Patents
A kind of laser cladding apparatus of oblique cone bench-type sealing surface of valve plate for large size valve Download PDFInfo
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- CN105483694B CN105483694B CN201510847017.5A CN201510847017A CN105483694B CN 105483694 B CN105483694 B CN 105483694B CN 201510847017 A CN201510847017 A CN 201510847017A CN 105483694 B CN105483694 B CN 105483694B
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- valve plate
- cladding
- oblique cone
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
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- Chemical Kinetics & Catalysis (AREA)
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- Laser Beam Processing (AREA)
Abstract
The invention discloses a kind of special fixture, laser cladding apparatus and corresponding laser cladding method for including oblique cone bench-type valve plate, belong to laser semiconductor cladding field；Valve plate fixture is in laser cladding process is carried out in the prior art, and due to the oblique cone bench-type of valve plate, cladding is uneven, and some positions can not obtain cladding；Special fixture provided by the invention includes side wall and bottom surface, and side wall is cylindrical shape, and the bottom surface is ellipse, and with the side wall at an angle, the angle is equal to the angle between the valve plate oblique cone bench-type central shaft and the valve plate plane normal for the bottom surface；Cladding for oblique cone bench-type valve plate, powder are accumulated evenly, and cladding face is horizontal, whole frustum inclined-plane can cladding, cladding is evenly.
Description
Technical field
The invention belongs to laser semiconductor cladding field, more particularly, to a kind of oblique cone platform of large size valve
The laser melting coating of type sealing surface of valve plate.
Background technology
Pump valve industry is the pith of China's equipment manufacture, especially Wenzhou traditional characteristicses leading industry, develops pump
Development of the valve industry for promotion Wenzhou industrial economy, lifting China's equipment manufacturing is horizontal, promotes industrial economy and regional economy
Development etc. is significant.
1st, pump valve industry is China's manufacturing industry important foundation industry
In recent years, the pump valve industry in only Wenzhou reaches 30,000,000,000 yuan of annual output, and is increased with 25% speed, be domestic scale most
Greatly, the pump valve production base that yield highest, specification be most complete, enterprise concentrates the most, pump valve products be national Larger Engineering Projects and
Key enterprise carries out supporting.But pump valve industry is badly in need of technology innovation, is compared with the high-end valve of import, pump valve quality is not universal high
It is one reason of most important of which, turns into the bottleneck in industry development.How to change pump valve surface property and each side is comprehensive
It is the present urgent need to solve the problem of pump valve industry to close performance.
2nd, pump valve seal face conventional surface reinforcement process faces the challenge
Easy to wear, the perishable face of various pump classes and valve class, such as pump shaft, pump case, bearing, valve seat, valve plate and valve rod portion
Position, it is necessary to ensure that airtight quality.In pump valve industry, plane class workpiece mainly has bonnet, valve plate and a small number of valve bodies.Bonnet is pressure-bearing
Part, flashboard are pressure control parts, once damaged, the fluid that they are stopped will be released.Therefore, in defined medium
In temperature and pressure environment, both need have outstanding mechanical property and cold and hot working technique.Surface strengthening technology is as pump
Essential technology in valve industry, strengthen corrosion resistance, wearability and the mechanical performance of valve plate and bonnet, extend so as to reach
The requirement in overall pump valve life-span.
The traditional treatment method in pump valve seal face is using plasma spraying, flame-spraying, electric arc welding etc., surface be present
The problems such as bond strength is low, coating is uneven, spraying noise is big, pollution environment.The supersonic spray coating of valve sealing face gradually exists
Using more in valve industry, but supersonic spray coating equipment is expensive, and face coat is relatively thin, and it is larger that machine runs noise.
In recent years, commercial Application of the semiconductor laser in terms of cladding possesses huge advantage, swashs with conventional CO2 gases
Light device is compared, and small volume, electro-optical efficiency is up to more than 60%, is easily installed, substantially non-maintaining.In addition, high power is partly led
Body laser can be with mechanical arm coordinating operation, and in some commercial Applications, it has other lasers unrivaled competing
Strive power.
3rd, special valve board structure analysis
By, it can be seen that valve plate is not positive plectane, its edge is the face of oblique cone platform in Fig. 1.From the dashed region in side view
Domain, it will be seen that the edge of valve plate is actually some of circular cone, we term it oblique cone platform.In figure, definition is vertical
It is valve plate plane normal direction in the direction on valve plate surface, the central shaft and normal direction of frustum are angled, valve plate processing
Center line has certain distance with normal.In addition, axis when valve plate work centerline hole works for it in valve.
It is recognised that when carrying out cladding to the edge of valve plate, due to its edge unsymmetric structure, it is necessary to using
Special method.Valve plate is considered as common cylinder face by the melting and coating technique used at present, following problem be present：(1) using general
During logical fixture, valve plate edge can't be fully horizontal, causes powder normally can not be deposited on valve plate, influences the quality of cladding；
(2) during worktable rotary, common cylinder face can well holding position stabilization, and frustum face can produce it is certain
Displacement, as a result cause laser beam displacement cladding region, make valve plate edge forming portion cladding, the situation of the non-cladding in part；(3)
Due to the frustum shape in valve plate cladding face, the different zones variable thickness sample at its edge, if using rectangular light spot cladding, laser
The off-centring of light beam then can burn the region to relatively thin region.
The content of the invention
Present invention is generally directed to the laser melting coating of the maximum cylindrical sealing surface of valve plate of yield, improves wearability, high power half
Conductor Laser surface peening dedicated system is mainly using the mode of synchronous powder feeding system and cladding and hardening, using iron-based, Ni-based, cobalt-based etc.
Powder metallurgy carries out scaling loss valve plate outer circular edge in surface peening and laser cladding process to processing component.
To achieve the above object, the invention provides a kind of laser melting coating exclusive clamps for including oblique cone bench-type valve plate
Tool, it is characterised in that the fixture includes side wall and bottom surface, and side wall is cylindrical shape, and the bottom surface is ellipse, the bottom surface and institute
State side wall at an angle, the angle is equal to the folder between the valve plate oblique cone bench-type central shaft and the valve plate plane normal
Angle.
Preferably, there are one or more fixing holes, for securing fixtures in laser cladding apparatus on the bottom surface.
Another object of the present invention is to provide a kind of semiconductor laser cladding apparatus for including oblique cone bench-type valve plate,
Characterized in that, it includes above-mentioned special fixture.
Another object of the present invention is to provide a kind of semiconductor laser cladding method for including oblique cone bench-type valve plate,
Characterized in that, the process employs laser cladding apparatus described above, this method comprises the following steps：
(1) valve plate is correctly placed on fixture, makes the center line of valve plate oblique cone bench-type central shaft and fixture bottom center hole
On the same line；
(2) elevation angle of tiltable rotary table in the laser cladding apparatus is adjusted, its angle is equal to the oblique cone platform
The angle of type bus and the oblique cone bench-type central shaft, make the bus all the time in the same horizontal line；
(3) cladding process starts, and the laser cladding apparatus uses trapezoidal profile power density light beam, the laser melting coating
The A axles of the interlocked numerical controlled work in combination platforms of 5 axle A/X in device link with X-axis, and the valve plate is translating while rotation, reaches
The whole frustum face of the oblique cone bench-type is set to obtain cladding.
By the contemplated above technical scheme of the present invention, compared with prior art, possesses following beneficial effect：
(1) present invention use semiconductor laser, its advantage have energy density distribution is uniform, power Real time and controllable is good,
Compact equipment, energy conversion efficiency are high, are easy to optical fiber transmission.Cooperate with wu-zhi-shan pig, easily realize any song
Face Flexible Manufacture, improve pump valve seal face quality, optimize the important technology of production environment, can significantly improve workpiece wearability,
Corrosion resistance and heat resistance；
(2) special fixture is used, the cladding for frustum type valve plate, cladding face is horizontal, and powder is accumulated evenly, whole cone
Platform inclined-plane can effective cladding, cladding is evenly.
(3) in order to prevent laser melting coating scaling loss outer circular edge, noise spectra of semiconductor lasers hot spot does the defeated processing of special light, obtains
Trapezoidal profile power density light beam, it is ensured that cylindrical not to be burnt.
Brief description of the drawings
Fig. 1 is the structure chart of the special valve plate of the present invention, wherein (a) is the front view of this kind of valve plate；(b) it is the side view of valve plate
Figure；
Fig. 2 is valve plate semiconductor laser cladding system of the present invention；
Fig. 3 is the laser melting coating special fixture that the present invention is directed to special valve plate oblique cone table top, wherein (a) is to be seen from B directions
See the accompanying drawing of fixture；(b) side view for fixture and valve plate are riding the position put；(c) it is regarding from A to viewing fixture
Figure；
Fig. 4 is operating diagram of the special fixture of the present invention in rotary table.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Special valve plate in the present invention refers to the special valve plate in background technology, i.e. valve plate is not positive plectane, and its edge is
The face of oblique cone platform.
Patent pump valve surface high-power semiconductor laser of the present invention is modified, and is referred to and is used laser melting and coating technique to select workpiece face
One layer of alloy powder is coated, with the corrosion-resistant technique for waiting physical and chemical performance of strengthening workpiece surface abrasion resistance.For in pump valve industry
For the workpiece of the position such as pump shaft, pump case, bearing, valve seat, valve plate and valve rod of pump valve, the effect of laser melting coating is exactly by pump valve
Damageable zone carries out local strengthening, and service life increases substantially.The special purpose device purpose of this patent design is very clear and definite, is exactly
Solve the cladding apparatus and process difficulties of pump valve industry important component valve plate.
1st, valve plate semiconductor laser cladding overall system design
In high power laser light pump valve surface treatment process, laser beam performs relative motion with body surface.High power is partly led
Volumetric laser pump valve surface is modified the special equipment system integration, it is desirable to which spot size is adjustable, power or energy are adjustable.Laser Processing system
System is by 3KW high-power semiconductor lasers, totally-enclosed Double-temperature water chilling unit, power unit, lathe main auxiliary machine and five-shaft numerical control system
The composition such as system.
As shown in Fig. 2 valve plate semiconductor laser cladding overall system design
Wherein 20- laser cladding powder sending devices, 21- air stream transportation powder delivering pipes, 22- tiltable rotary tables, 23-5 axles
The interlocked numerical controlled work in combination platforms of A/X, 24- laser transmission lines, 25- circulating water pipelines, the special valve plates of 26-, 27- fixtures, 28- behaviour
Make controller, 29- water chillers, 30- lasers, 31- laser shaping output devices；
As illustrated, tiltable rotary table 22 is a part for the interlocked numerical controlled work in combination platforms 23 of 5 axle A/X, control
The elevation angle of workbench and rotation.The interlocked numerical controlled work in combination platforms 23 of 5 axle A/X also control X, Y, the displacement of Z axis, in this workbench
On, it is only necessary to X-axis works, and drives movement of the whole tiltable rotary table 22 in X-direction.Fixture 27 is fixed on by fixing hole
On tiltable rotary table, the everything of tiltable rotary table all makes fixture make identical action.Need the spy of cladding
Different valve plate 26 is fixed on fixture, and its surface is laser shaping output device 31, in the course of the work laser shaping output dress
It is fixed to put 31, then ensures that its output beam is constant, cladding width is constant.Laser cladding powder sending device 20 passes through air stream transportation powder
Material conveying tube 21 is by cladding powder carry to special valve plate 26.Laser 30 is by laser transmission line 24 by caused laser
It is defeated to arrive laser shaping output device 31, the laser beam needed for cladding is then obtained by shaping.
System major parameter such as following table：
Mechanical motion mechanism is made up of two rotary shafts of tri- linear axis of X, Y, Z and A, B, can complete 5-axis movement with appointing
Meaning three-shaft linkage, the Laser Surface Treatment of complex surface workpiece can be completed.Laser Focusing camera lens can be along 360 ° of rotations manually of X/Y plane
Turn, Laser Focusing incident direction is adjustable, can arbitrarily be adjusted along XZ or YZ plane ± 90 °.
The high-power semiconductor laser of valve plate cladding selection, specifically chosen Xi'an Ju Guang companies FL-Dlight-3000-
976 type 3KW semiconductor lasers, 980 ± 10nm of its wavelength, it is 2mm*8mm surface peening laser heads to have spot size.The laser
Device work is continuation mode, and power continuously adjustabe, laser upper limit operation power is up to 3KW, unstability≤± 2%.
2nd, laser melting coating special fixture of the design for special valve plate oblique cone table top
Reference in Fig. 3 is as follows：The position of cylinder, 2- particular usage valve board special fixtures, 3 valve plates are pressing from both sides where 1- fixtures
Position on tool, 4- valve plates are at the position of place frustum, 5- valve plates (machining) center line, 6- valve plate normals, 7- frustums center
Axle (rotation of rotary table axle), 8- clamp-securing bores；
As shown in figure 3, where the fixture it can be seen from the position 1 of cylinder fixture 2 be processed on the basis of cylinder and
Into side is cylinder, and bottom surface forms an angle with bottom cylindrical face.The angle phase of this angle and valve plate normal 6 and frustum central shaft 7
Deng.
There are four clamp-securing bores 8 on bottom surface, in terms of A direction views, frustum central shaft 7 has one with fixture bottom surface intersection
Fixing hole, to be uniformly distributed three fixing holes on its circle as the center of circle.Fixing hole is secured fixtures on rotary table, center
Fixing hole it is corresponding with rotation of rotary table axle, i.e., rotation of rotary table axle passes through this center of circle.
3rd, for the laser cladding method of special valve plate
As shown in Figure 4：9- tiltable rotary tables, 10- servomotors, 11- laser device laser beams, in 12- valve plate rotating shafts
The heart, 13- frustum buses, 14- valve plate center lines, the special valve plates of 15-, 16- soldering cramping apparatus, 17- valve plate normals, 18- frustums center
Axle (rotation of rotary table axle), the 19- rotary tables elevation angle
Laser cladding method of the present invention comprises the following steps：
(1) valve plate is correctly placed on fixture, makes the center line of valve plate oblique cone bench-type central shaft and fixture bottom center hole
On the same line, precondition is provided for laser melting coating；
(2) elevation angle of tiltable rotary table in the laser cladding apparatus is adjusted, its angle is equal to the oblique cone platform
The angle of type bus and the oblique cone bench-type central shaft, make the bus all the time in the same horizontal line, so that cladding is put down
All the time in same level, powder is easily accumulated in face, and laser need not move, and prior art, cladding face are simultaneously non-horizontal, there is one
Constant inclination angle；
(3) cladding process starts, and A axles link with X-axis, and valve plate is translating while rotation, and reaching obtains whole frustum face
To cladding, cladding effect is evenly.The problem of technology is present at present is only to turn not translate, and some parts do not have cladding to arrive.
Embodiment is as follows：It is fixing point with valve plate spindle central 12 when valve plate is placed on fixture, to determine valve
The particular location relation of plate and fixture, make the center centerline hole of the frustum central shaft of valve plate and fixture bottom surface in same straight line
On.The center fixing hole of fixture is corresponding with the gyroaxis of tiltable rotary table 9, then naturally, frustum central shaft 18 and turntable
At gyroaxis on the same line.
When the rotary table elevation angle 19 is equal with the angle of frustum bus 13 and frustum central shaft 18, the water of frustum bus 13
It is flat, and when tiltable rotary table 9 when rotated, the frustum bus 13 of special valve plate 15 is all the time in the same horizontal line.This is protected
Demonstrate,prove in cladding powder feeding, powder preferably can be deposited on valve plate, will not slide powder because of the inclination of angle.
In Fig. 3, the interlocked numerical controlled work in combination platforms 23 of 5 axle A/X, in the course of the work, it is necessary to which what is used is A axles and X-axis, divide
The rotation and translation of workbench Kong Zhi not can be poured back into.Marked out respectively in Fig. 4 A axles rotation with X to translation.According to valve plate
Parameter, manually adjust tiltable rotary table inclination angle, make its A axle meet require.At this moment, when valve plate fixture when rotated,
Frustum bus 13 is all the time in same level, in the case where ensureing that laser device laser beam is constant, welding bead difficulty and cladding light
Spot size is constant, improves cladding quality.While A axles rotate, moving horizontally for X-axis is also carried out.Cladding is labelled with Fig. 3
Workspace area L i.e. in rotational valve plate, valve plate need the face of cladding can produce X to displacement, therefore, it is desirable to 5 axle A/X link
The X of numerical control work in combination platform to bit shift compensation, avoid to move laser beam, influence beam quality, so as to influence cladding matter
Amount.Understand, when A axles rotate 180 °, X-axis needs to move L；When A axles are rotated further 180 °, X-axis needs to move backward L completions one
The cladding of individual annulus.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., all should be included
Within protection scope of the present invention.
Claims (2)
1. a kind of laser melting coating special fixture for including oblique cone bench-type valve plate, it is characterised in that the fixture includes side wall
And bottom surface, side wall are cylindrical shape, the bottom surface is ellipse, the bottom surface and the side wall at an angle, the angle and institute
The angle stated between valve plate oblique cone bench-type central shaft and the valve plate plane normal is mutually remaining；
There are one or more fixing holes, for securing fixtures in laser cladding apparatus on the bottom surface；
During work, the valve plate is correctly placed on the fixture, makes the valve plate oblique cone bench-type central shaft and the fixture
The center line in bottom center hole is on the same line；The elevation angle of tiltable rotary table in the laser cladding apparatus is adjusted, is made
Its angle is equal to the angle of the oblique cone bench-type bus and the oblique cone bench-type central shaft, makes the bus all the time in same level
On line；In cladding process, the laser cladding apparatus uses trapezoidal profile power density light beam, in the laser cladding apparatus
The A axles of the interlocked numerical controlled work in combination platforms of 5 axle A/X link with X-axis, and the valve plate is translating while rotation, reach make it is described tiltedly
The whole frustum face of frustum type obtains the effect of cladding.
2. a kind of semiconductor laser cladding apparatus for including oblique cone bench-type valve plate, it is characterised in that described device is included such as
Special fixture described in claim 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510847017.5A CN105483694B (en) | 2015-11-27 | 2015-11-27 | A kind of laser cladding apparatus of oblique cone bench-type sealing surface of valve plate for large size valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510847017.5A CN105483694B (en) | 2015-11-27 | 2015-11-27 | A kind of laser cladding apparatus of oblique cone bench-type sealing surface of valve plate for large size valve |
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| CN105483694B true CN105483694B (en) | 2018-02-23 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077947B (en) * | 2016-07-05 | 2017-09-26 | 温州大学激光与光电智能制造研究院 | A kind of constant speed elliptical orbit laser precision machining method of oblique cone round platform |
| CN106637193B (en) * | 2016-12-06 | 2019-03-12 | 郭达伟 | A kind of coaxial laser cladding apparatus and packing auger and its cladding method |
| CN106676519B (en) * | 2016-12-27 | 2018-10-16 | 大连理工大学 | A method of carrying out laser melting coating on tilting matrix |
| CN107234394B (en) * | 2017-07-26 | 2023-02-21 | 荆门美中美阀门有限公司 | Valve plate positioning tool |
| CN108085680B (en) * | 2018-01-23 | 2019-12-31 | 西安科技大学 | Adjustable fixture for repairing bevel gear through laser cladding |
| CN111778500B (en) * | 2020-07-22 | 2021-06-15 | 江苏理工学院 | Method for laying nickel-based alloy coating aiming at supersonic plasma of aluminum alloy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706251A (en) * | 2012-05-31 | 2012-10-03 | 无锡宝牛阀业有限公司 | Measuring device for sealing ring of three-eccentric center butterfly valve |
| CN202752842U (en) * | 2012-05-10 | 2013-02-27 | 重庆海王仪器仪表有限公司 | Butterfly valve body machining device |
| CN103184450A (en) * | 2013-03-21 | 2013-07-03 | 上海交通大学 | Laser cladding method for cone-shaped part surface |
| CN205258609U (en) * | 2015-11-27 | 2016-05-25 | 华中科技大学 | Laser cladding device to sealed face of oblique cone bench -type valve plate of large -scale valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4085246B2 (en) * | 2002-05-23 | 2008-05-14 | トヨタ自動車株式会社 | Laser cladding processing apparatus and laser cladding processing method |
-
2015
- 2015-11-27 CN CN201510847017.5A patent/CN105483694B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202752842U (en) * | 2012-05-10 | 2013-02-27 | 重庆海王仪器仪表有限公司 | Butterfly valve body machining device |
| CN102706251A (en) * | 2012-05-31 | 2012-10-03 | 无锡宝牛阀业有限公司 | Measuring device for sealing ring of three-eccentric center butterfly valve |
| CN103184450A (en) * | 2013-03-21 | 2013-07-03 | 上海交通大学 | Laser cladding method for cone-shaped part surface |
| CN205258609U (en) * | 2015-11-27 | 2016-05-25 | 华中科技大学 | Laser cladding device to sealed face of oblique cone bench -type valve plate of large -scale valve |
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