CN115094415A - System and method for preparing high-quality anti-corrosion wear-resistant coating on surface of hydraulic support through cooperation of double light beams - Google Patents
System and method for preparing high-quality anti-corrosion wear-resistant coating on surface of hydraulic support through cooperation of double light beams Download PDFInfo
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- CN115094415A CN115094415A CN202210699096.XA CN202210699096A CN115094415A CN 115094415 A CN115094415 A CN 115094415A CN 202210699096 A CN202210699096 A CN 202210699096A CN 115094415 A CN115094415 A CN 115094415A
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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
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
Abstract
The invention provides a system and a method for preparing a high-quality anti-corrosion wear-resistant coating on the surface of a hydraulic support by the cooperation of double beams. Forming a rectangular light spot at the powder position on the surface of the hydraulic support by using a laser broadband cladding processing head to prepare a cladding layer; the laser swinging processing head forms a swinging circular light spot on the surface of the hydraulic support, so that the rectangular light spot and the circular light spot form a composite in the cladding direction; the rectangular light spot and the circular light spot have the same front-back position relation in the workpiece stepping direction and the cladding direction, so that a secondary remelting area and a double-beam cooperative composite processing area are sequentially formed in a lapping area between the current single-channel coating and the previous single-channel coating, and the circular light spot stirs a molten pool in the secondary remelting area and the double-beam cooperative composite processing area in a symmetrical swinging mode, so that the coating interface cladding appearance and the coating quality are improved.
Description
Technical Field
The invention relates to the technical field of laser cladding, in particular to a method and a system for preparing a high-quality anti-corrosion wear-resistant coating on the surface of a hydraulic support by using double light beams in a synergistic manner.
Background
The hydraulic frame is poor in working condition and high in relative humidity under a mine, so that the surface of the hydraulic support stand column is extremely prone to corrosion, the using effect of the hydraulic support is further influenced, and the hydraulic support stand column is failed and scrapped due to corrosion every year.
The coating prepared by the broadband laser cladding technology can greatly improve the performances of wear resistance, heat resistance, corrosion resistance and the like of parts, but in the preparation process of the coating, oxides cannot completely float to the surface of the coating in a lap joint area to form inclusions due to the fact that the oxides cannot completely float to the surface of the coating, the oxides are included in a salt spray environment to generate a galvanic cell reaction, the corrosion of the area is accelerated, and a large number of rust spots are generated.
Disclosure of Invention
The invention aims to solve the problems of a hydraulic support broadband cladding coating in the prior art, and provides a method and a system for preparing a high-quality anticorrosive wear-resistant coating on the surface of a hydraulic support by the cooperation of double beams, so that the escape of oxides is accelerated, the defects of a cladding interface are improved, the coating quality is improved, and the service life of the hydraulic support is prolonged.
According to a first aspect of the object of the present invention, a system for preparing a high quality anticorrosion wear-resistant coating on the surface of a hydraulic support by two light beams in cooperation is provided, which comprises:
the wide-band powder feeding nozzle is used for feeding powder to the surface of a hydraulic support, the hydraulic support is clamped and driven to rotate, and the rotating direction is defined as the workpiece stepping direction;
the laser broadband cladding machining head is used for forming rectangular light spots at powder positions on the surface of the hydraulic support and preparing a cladding layer by cladding powder;
the laser swing processing head is used for forming a swing round light spot at the position of a rectangular light spot formed by the laser broadband cladding processing head on the surface of the hydraulic support, so that the rectangular light spot and the round light spot are compounded in the cladding direction;
the laser broadband cladding machining head and the laser swinging machining head are arranged on the same machining platform and face the surface of the hydraulic support;
the rectangular light spot and the circular light spot have consistent front-back position relation in the workpiece stepping direction and the cladding direction, wherein:
along the cladding direction, the rectangular light spot is arranged at the front end, and the circular light spot is arranged at the rear end;
the rectangular light spot is arranged at the front end along the workpiece stepping direction, the circular light spot is arranged at the rear end, and the circular light spot is arranged to swing in the range of the overlapping area processed by the rectangular light spot so as to sequentially form a secondary remelting area and a double-beam cooperative composite processing area in the overlapping area between the current single-channel coating and the previous single-channel coating, wherein the secondary remelting area is positioned in the tail end position of the range of the previous single-channel coating, the double-beam cooperative composite processing area is positioned at the starting position of the current single-channel coating, the length of the secondary remelting area is the same as that of the double-beam cooperative composite processing area along the workpiece stepping direction, and the circular light spot stirs a molten pool in a symmetrical swing mode in the secondary remelting area and the double-beam cooperative composite processing area.
According to a second aspect of the object of the present invention, a method for preparing a high quality anticorrosion wear-resistant coating on the surface of a hydraulic support by two light beams in cooperation is provided, which comprises the following steps:
step 1: preparing a powder material by mol mass percent and pretreating the surface of the hydraulic support to be processed;
and 2, step: adopt two light beams synergism on hydraulic support surface, carry out the preparation of cladding layer through the rectangle facula according to the mode of setting for to utilize circular facula to carry out the oscillating stirring of single track coating overlap joint region, wherein:
the rectangular light spot and the circular light spot have consistent front-back position relation in the workpiece stepping direction and the cladding direction:
along the cladding direction, the rectangular light spot is arranged at the front end, and the circular light spot is arranged at the rear end;
along the workpiece stepping direction, the rectangular light spot is arranged at the front end, the circular light spot is arranged at the rear end, and the circular light spot is arranged to swing in the range of a lapping area processed by the rectangular light spot so as to sequentially form a secondary remelting area and a double-beam cooperative composite processing area in the lapping area between the current single-channel coating and the previous single-channel coating, wherein the secondary remelting area is positioned at the tail end of the range of the previous single-channel coating, the double-beam cooperative composite processing area is positioned at the starting position of the current single-channel coating, and the lengths of the secondary remelting area and the double-beam cooperative composite processing area are the same along the cladding direction, and the circular light spot stirs a molten pool in a symmetrical swing mode in the secondary remelting area and the double-beam cooperative composite processing area.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent. Additionally, all combinations of claimed subject matter are considered a part of the presently disclosed subject matter.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments according to the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of a system for the dual beam cooperative production of a high quality anti-corrosive wear resistant coating on a hydraulic support surface in accordance with an exemplary embodiment of the present invention;
FIG. 2 is a schematic top view of two laser beams in a method for preparing a high-quality anti-corrosion wear-resistant coating on the surface of a hydraulic bracket by two beams in cooperation according to an exemplary embodiment of the invention;
FIG. 3 is a schematic diagram of the energy distribution of circular light spots in a remelting area and a double-beam cooperative combination area in the method for preparing a high-quality anti-corrosion wear-resistant coating on the surface of a hydraulic bracket by the cooperation of light beams according to the exemplary embodiment of the invention;
FIG. 4 is a schematic diagram of a system for preparing a JG-11 wear-resistant and corrosion-resistant coating on the surface of a 27SiMn hydraulic support upright workpiece according to an embodiment of the invention.
FIG. 5 is a schematic diagram of a salt spray test for preparing a JG-11 wear-resistant corrosion-resistant coating on the surface of a 27SiMn hydraulic support upright post workpiece according to a traditional broadband laser cladding process.
FIG. 6 is a schematic diagram of a salt spray test for preparing a G-11 wear-resistant corrosion-resistant coating on the surface of a 27SiMn hydraulic support column workpiece based on a method of an exemplary embodiment of the invention.
The meaning of the individual symbols in the figures is as follows:
10-laser broadband cladding processing head; 20-laser swinging the machining head; 21-laser swinging processing head light outlet; 22-laser swinging a processing head light inlet; 30-wide band powder feeding nozzle;
100-rectangular light spots; 200-circular light spot;
301 — a clad region of a workpiece; 302-the area of the workpiece to be clad.
V1-step direction; v2 — cladding direction;
l1-rectangular spot length;
l2-circular spot diameter;
l3-circular spot wobble area.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
The system for preparing the high-quality anti-corrosion wear-resistant coating on the surface of the hydraulic support by combining the double light beams of the exemplary embodiment of the invention shown in fig. 1-3 comprises a laser broadband cladding processing head 10, a laser swinging processing head 20 and a broadband powder feeding nozzle 30.
The broad band powder feeder nozzle 30 is connected to a powder feeder, which may be an existing multi-barrel powder feeder, for feeding metal powder or mixed metal powder.
The wide-band powder feeding nozzle 30 is designed to be suitable for wide light spots, and a powder outlet of the wide-band powder feeding nozzle faces the surface of the roller of the hydraulic support to feed powder to the surface of the hydraulic support. In an embodiment of the invention, the hydraulic mount is clamped and driven in rotation, the direction of rotation being defined as the workpiece stepping direction V1.
Referring to fig. 1 and 2, a laser broadband cladding processing head 10 is configured to emit a laser beam to the surface of the hydraulic support, form a rectangular light spot 100 at a powder position on the surface of the hydraulic support, and prepare a cladding layer by cladding the powder. In an alternative embodiment, the laser broadband cladding process head 10 may be a commercial process head selected to fit the powder spot of the broadband powder feed nozzle 30.
The laser swinging processing head 30 is used for forming a swinging circular light spot 200 at the position of a rectangular light spot 100 formed by the laser broadband cladding processing head on the surface of the hydraulic support, so that the rectangular light spot 100 and the circular light spot 200 are compounded along the cladding direction V2.
In an embodiment of the invention, the laser broadband cladding processing head 10 and the laser oscillation processing head 20 are disposed on the same processing platform, e.g., the same numerically controlled machine tool, and face the hydraulic mount surface.
As an example, the laser broad band cladding processing head 10 and the laser swinging processing head 20 are fixed on a moving beam of the same machine tool according to a spatial position relationship, and the scanning speeds v of the two are the same.
In the example shown in connection with fig. 1 and 2, the rectangular spot 100 and the circular spot 200 have a consistent front-to-back positional relationship in both the workpiece stepping direction V1 and the cladding direction V2, where:
along the cladding direction V2, the rectangular light spot 100 is arranged at the front end, and the circular light spot 200 is arranged at the rear end;
along the workpiece stepping direction V1, the rectangular light spot 100 is arranged at the front end, the circular light spot 200 is arranged at the rear end, and the circular light spot 200 is configured to swing within the range of the overlap region processed by the rectangular light spot 100, so as to sequentially form a secondary remelting region and a dual-beam cooperative composite processing region in the overlap region between the current single-pass coating and the previous single-pass coating, as shown in fig. 2, wherein the secondary remelting region is located at the end position of the range of the previous single-pass coating, the dual-beam cooperative composite processing region is located at the start position of the current single-pass coating, and the length of the secondary remelting region and the length of the dual-beam cooperative composite processing region are the same along the workpiece stepping direction, and the circular light spot stirs the molten pool in the secondary remelting region and the dual-beam cooperative composite processing region in a symmetrical swing manner.
As shown in FIG. 2, the length L1 of the rectangular spot is 5-10 times the diameter L2 of the circular spot along the workpiece step direction V1.
As shown in fig. 2, the secondary remelting zone and the dual beam co-recombination zone are the same length along the workpiece step direction V1. The length of the secondary remelting area and the length of the double-beam cooperative composite processing area are both larger than or equal to the diameter L2 of the circular light spot.
In an alternative embodiment, the diameter of the circular light spot is in the range of 1-3 mm.
As an alternative embodiment, the overlap ratio of the single coating of the laser broadband cladding processing head 100 is 20% to 40%.
As an alternative embodiment, the spot length L1 of the rectangular spot is 10-20 mm, the spot diameter L2 of the circular spot is 1-1.5 mm, and the area range L3 of the circular spot swing area is 2L 2.
In an alternative embodiment, the amplitude and frequency of the circular light spot can be adjusted, so that the amplitude and frequency of the circular light spot can be adjusted under different processing technologies, for example, aiming at different light spot size designs and overlapping ratio designs.
In an embodiment of the invention, the laser power of the laser broadband cladding processing head 100 is greater than the laser power of the laser wobble processing head 200.
In the embodiment of the invention, aiming at the problem of serious abrasion of the surface of a hydraulic support in the coal machine manufacturing industry, the method for preparing the surface coating of the hydraulic support by adopting the double-beam cooperation is provided, and the problem of oxide inclusion defect in a coating overlapping area is solved by mutually compounding two laser beams with different action mechanisms, so that the purposes of high-quality corrosion resistance and wear resistance of the whole area of the coating are realized. The high-power laser broadband cladding processing head 100 forms a rectangular laser spot on the surface of a processing area and is used for preparing a broadband cladding coating, a secondary molten pool is formed on the boundary of the broadband cladding layer in the range of a lapping area at the rectangular spot through swinging the processing head 200 by low-power laser, the secondary molten pool is stirred by utilizing the swinging function of the secondary molten pool, the quantity of oxide inclusions in the lapping area can be greatly reduced under the double-beam synchronization effect, the coordination of optimization of microstructure and crack control of the cladding layer and the formation of binding force is promoted, the possibility of rust spots in a neutral salt mist environment is reduced, the quantity of oxides is reduced, a wear-resistant and corrosion-resistant coating with a higher salt mist resistance grade is obtained, the purposes of improving cladding appearance and coating quality of a coating interface are achieved, and the underground service life of a hydraulic support is prolonged.
In some embodiments, the hydraulic stent bar piece may be pre-fixed and clamped on a jig prior to coating preparation.
In an alternative embodiment, a gantry-type cladding machine may be used to carry a set of two laser cladding processing heads, namely a laser broadband cladding processing head for forming a rectangular spot and a laser swing processing head for forming a circular spot, the spatial installation positions of which can be adjusted in the position configuration of fig. 2.
In other embodiments, planer-type melts and covers the lathe portability multiunit processing head and carry out multizone and melt and cover simultaneously, realizes multizone multistation and melts and covers simultaneously, further improves industrial production efficiency.
Preferably, the two machining heads are used as a whole, the two machining heads can rotate for a certain angle relative to a mounting cross beam of the gantry type cladding machine tool, and the adjustment of the angle is controlled by a servo motor, so that the machining method for preparing the high-quality anti-corrosion wear-resistant coating on the surface of the hydraulic support by the cooperation of the two beams is adapted.
In an optional embodiment, the powder feeding mode of the laser broadband cladding processing head is selected to be gravity powder feeding.
With reference to fig. 1 and 2, an embodiment of the invention discloses a method for preparing a high-quality anticorrosion wear-resistant coating on the surface of a hydraulic support by using a double-beam cooperation method, which comprises the following steps:
step 1: preparing a powder material by mol mass percent and pretreating the surface of the hydraulic support to be processed;
step 2: adopt two beams synergism on hydraulic support surface, carry out the preparation of cladding layer through the rectangle facula according to the mode of setting for to utilize circular facula to carry out the oscillating stirring of single pass coating overlap joint region, wherein:
as shown in fig. 2 and 3, the rectangular light spot and the circular light spot have consistent front-back position relation in the workpiece stepping direction and the cladding direction:
along the cladding direction, a rectangular light spot is arranged at the front end, and a circular light spot is arranged at the rear end;
the rectangular light spot is arranged at the front end and the circular light spot is arranged at the rear end along the workpiece stepping direction, and the circular light spot is arranged to swing in the range of the overlapping area processed by the rectangular light spot so as to form a secondary remelting area and a double-beam cooperative composite processing area in sequence in the overlapping area between the current single-channel coating and the previous single-channel coating, wherein the secondary remelting area is positioned at the tail end of the range of the previous single-channel coating, the double-beam cooperative composite processing area is positioned at the starting position of the current single-channel coating, the lengths of the secondary remelting area and the double-beam cooperative composite processing area are the same along the cladding direction, and the circular light spot stirs a molten pool in a symmetrical swing mode in the secondary remelting area and the double-beam cooperative composite processing area.
In the embodiment of the invention, the alloy powder material is JG-11 alloy spherical powder with the particle size of 53-150 mu m. The alloy powder material comprises the following components in percentage by mol mass: c-0.11%, Cr-17.28%, Si-0.98%, Mn-0.26%, Ni-2.92%, Mo-0.34%, and Fe for the rest.
The surface material of the corresponding hydraulic bracket substrate is 27 SiMn.
In an alternative embodiment, after the powder material is prepared by the mol mass percent, an electromagnetic powder mixing device is adopted to mix the powder for 1h, and the powder is dried in vacuum for 1.5h at 100 ℃ before use.
In an alternative embodiment, the pre-treating the surface of the hydraulic support to be machined comprises: and (4) drying after cleaning to remove impurities and oxide layers on the surface.
In an alternative embodiment, the spot length L1 of the rectangular spot is 14mm, and the spot diameter L2 of the circular spot is 1.5 mm; the circular spot swing area L3 is 3 mm. The spot length L1 of the rectangular spot was 9.33 times the spot diameter L2 of the circular spot.
As an alternative embodiment, the laser cladding processing heads corresponding to the two laser beams are fixed on a moving beam of the machine tool according to a spatial position relationship, the scanning speeds v of the laser broadband cladding processing head 100 and the laser swinging processing head 200 are the same, and v is 12mm/s until the set cladding processing program is finished.
As an optional embodiment, the technological parameters used in the laser cladding process of the double-beam synergistic preparation of the high-quality anticorrosive wear-resistant coating on the surface of the hydraulic support are as follows:
laser cladding based on rectangular light spots: the laser power is 5400W, the spot length of the rectangular spot is 14mm, and the lap joint rate is 40%;
laser swing stirring based on circular facula: the laser power is 2600W, the spot diameter of a circular spot is 1.5mm, and the swing speed is 250-300 mm Hz.
As shown in the figure, the lapping area is divided into a secondary remelting area and a double-beam cooperative composite area, the total energy of the lapping area is the sum of the energy E1 of the secondary remelting area and the energy E2 of the double-beam cooperative composite area, the depth of the composite area is obviously increased along with different working areas, secondary remelting is carried out by stirring light spots after the surface of the hydraulic support is prepared by rectangular light spots, the surface tissue form can be found to be effectively improved, the defects of surface air holes and the like are released, and the defects of cracks and air holes in the tissue are reduced, so that the surface quality is improved, and the surface hardness of a cladding layer is improved; in the double-beam cooperative compounding area, the second phase is subjected to dispersion strengthening and grain refinement, so that the structure has very good stability, and the wear resistance of the double-beam cooperative compounding area is improved, thereby improving the hardness of the coating.
By combining the examples shown in fig. 4, 5 and 6 and the surface topography shown in the drawings, the coating prepared by the method of the embodiment of the invention has high surface quality, and the maximum thickness of the wear-resistant and corrosion-resistant layer of the coating reaches 1.5 mm. After passing standard neutral salt spray tests, it can be seen by comparison of the number of rust spots that the coatings produced by the system and process of the present invention have significantly reduced numbers of rust spots relative to coatings produced by conventional broad band cladding processes.
Although the invention has been described with reference to preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (13)
1. A system for preparing a high-quality anti-corrosion wear-resistant coating on the surface of a hydraulic support in a double-beam cooperation mode is characterized by comprising the following steps:
the wide-band powder feeding nozzle is used for feeding powder to the surface of a hydraulic support, the hydraulic support is clamped and driven to rotate, and the rotating direction is defined as the workpiece stepping direction;
the laser broadband cladding machining head is used for forming rectangular light spots at powder positions on the surface of the hydraulic support and preparing a cladding layer by cladding powder;
the laser swing processing head is used for forming a swing round light spot at the position of a rectangular light spot formed by the laser broadband cladding processing head on the surface of the hydraulic support, so that the rectangular light spot and the round light spot are compounded in the cladding direction;
the laser broadband cladding machining head and the laser swinging machining head are arranged on the same machining platform and face the surface of the hydraulic support;
the rectangular light spot and the circular light spot have consistent front-back position relation in the workpiece stepping direction and the cladding direction, wherein:
along the cladding direction, the rectangular light spot is arranged at the front end, and the circular light spot is arranged at the rear end;
the rectangular light spot is arranged at the front end along the workpiece stepping direction, the circular light spot is arranged at the rear end, and the circular light spot is arranged to swing in the range of the overlapping area processed by the rectangular light spot so as to form a secondary remelting area and a double-beam cooperative composite processing area in sequence in the overlapping area between the current single-channel coating and the previous single-channel coating, wherein the secondary remelting area is positioned at the tail end of the range of the previous single-channel coating, the double-beam cooperative composite processing area is positioned at the starting position of the current single-channel coating, the lengths of the secondary remelting area and the double-beam cooperative composite processing area are the same along the workpiece stepping direction, and the circular light spot stirs a molten pool in a symmetrical swinging mode in the secondary remelting area and the double-beam cooperative composite processing area.
2. The system for cooperatively preparing the high-quality anti-corrosion wear-resistant coating on the surface of the hydraulic support through the double light beams as claimed in claim 1, wherein the laser broadband cladding processing head and the laser swinging processing head are fixed on a moving cross beam of the same machine tool according to a spatial position relationship, and the scanning speeds of the laser broadband cladding processing head and the laser swinging processing head are the same.
3. The system for the dual-beam cooperative preparation of the high-quality anti-corrosion wear-resistant coating on the surface of the hydraulic support as claimed in claim 1, wherein the laser power of the laser broadband cladding processing head is greater than that of the laser swing processing head.
4. The system for cooperatively preparing a high-quality anticorrosion wear-resistant coating on the surface of a hydraulic support through double light beams according to claim 1, wherein the length L1 of the rectangular light spot is 5-10 times of the diameter L2 of the circular light spot along the workpiece stepping direction.
5. The system for preparing a high-quality anticorrosion wear-resistant coating on the surface of a hydraulic support through double-beam cooperation according to claim 1, wherein the length of the secondary remelting region and the length of the double-beam cooperation composite processing region are the same along the workpiece stepping direction.
6. The system for preparing a high-quality anticorrosive wear-resistant coating on the surface of a hydraulic support through double-beam cooperation according to claim 1, wherein the length of each of the secondary remelting region and the double-beam cooperation composite processing region is greater than or equal to the diameter of a circular light spot.
7. The system for cooperatively preparing the high-quality anticorrosion wear-resistant coating on the surface of the hydraulic support through the double light beams according to claim 1, wherein the diameter of the circular light spot ranges from 1 mm to 3 mm.
8. The system for cooperatively preparing the high-quality anticorrosion and wear-resistant coating on the surface of the hydraulic support through the double light beams as claimed in claim 1, wherein the overlap ratio of the single coating of the laser broadband cladding processing head is 20-40%.
9. The system for cooperatively preparing a high-quality anticorrosive wear-resistant coating on the surface of a hydraulic support through double light beams according to any one of claims 1 to 8, wherein the oscillation amplitude and frequency of the circular light spot are adjustable.
10. A method for preparing a high-quality anti-corrosive wear-resistant coating on the surface of a hydraulic support through two light beams based on the system for preparing the high-quality anti-corrosive wear-resistant coating on the surface of the hydraulic support through two light beams in a synergistic manner, which is characterized by comprising the following steps of:
step 1: preparing a powder material by mol percentage and pretreating the surface of a hydraulic support to be processed;
step 2: adopt two light beams synergism on hydraulic support surface, carry out the preparation of cladding layer through the rectangle facula according to the mode of setting for to utilize circular facula to carry out the oscillating stirring of single track coating overlap joint region, wherein:
the rectangular light spot and the circular light spot have consistent front-back position relation in the workpiece stepping direction and the cladding direction:
along the cladding direction, the rectangular light spot is arranged at the front end, and the circular light spot is arranged at the rear end;
the rectangular light spot is arranged at the front end and the circular light spot is arranged at the rear end along the workpiece stepping direction, and the circular light spot is arranged to swing in the range of the overlapping area processed by the rectangular light spot so as to form a secondary remelting area and a double-beam cooperative composite processing area in sequence in the overlapping area between the current single-channel coating and the previous single-channel coating, wherein the secondary remelting area is positioned at the tail end of the range of the previous single-channel coating, the double-beam cooperative composite processing area is positioned at the starting position of the current single-channel coating, and the lengths of the secondary remelting area and the double-beam cooperative composite processing area are the same along the cladding direction, and the circular light spot stirs the molten pool in a symmetrical swing mode in the secondary remelting area and the double-beam cooperative composite processing area.
11. The method for cooperatively preparing the high-quality anticorrosion wear-resistant coating on the surface of the hydraulic support through the double light beams according to claim 10, wherein the alloy powder material is JG-11 alloy spherical powder with the particle size of 53-150 μm.
12. The method for cooperatively preparing the high-quality anti-corrosive and wear-resistant coating on the surface of the hydraulic stent by using the double light beams according to claim 10, wherein the light spot length L1 of the rectangular light spot is 10-20 mm, the light spot diameter L2 of the circular light spot is 1-1.5 mm, and the area range L3 of the swinging area of the circular light spot is 2L 2.
13. The method for preparing the high-quality anti-corrosion wear-resistant coating on the surface of the hydraulic support through the cooperation of the double beams according to claim 10, wherein the process parameters used in the laser cladding in the processing process are as follows:
laser cladding based on rectangular light spots: the laser power is 5400W, the spot length of the rectangular spot is 14mm, and the lap joint rate is 40%;
laser swing stirring based on circular facula: the laser power is 2600W, the spot diameter of a circular spot is 1.5mm, and the swing speed is 250-300 mm Hz.
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| US5595670A (en) * | 1995-04-17 | 1997-01-21 | The Twentyfirst Century Corporation | Method of high speed high power welding |
| CN110523978A (en) * | 2019-08-02 | 2019-12-03 | 南京中科煜宸激光技术有限公司 | The technique for promoting powder feeding formula laser gain material manufacture efficiency |
| CN111058036A (en) * | 2020-03-17 | 2020-04-24 | 南京中科煜宸激光技术有限公司 | Method for preparing wear-resistant corrosion-resistant temperature-sensitive coating by double-laser synergistic ultrahigh-speed laser cladding |
| CN217895752U (en) * | 2022-06-20 | 2022-11-25 | 南京中科煜宸激光技术有限公司 | System for preparing high-quality anti-corrosion wear-resistant coating on surface of hydraulic support through cooperation of double light beams |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595670A (en) * | 1995-04-17 | 1997-01-21 | The Twentyfirst Century Corporation | Method of high speed high power welding |
| CN110523978A (en) * | 2019-08-02 | 2019-12-03 | 南京中科煜宸激光技术有限公司 | The technique for promoting powder feeding formula laser gain material manufacture efficiency |
| CN111058036A (en) * | 2020-03-17 | 2020-04-24 | 南京中科煜宸激光技术有限公司 | Method for preparing wear-resistant corrosion-resistant temperature-sensitive coating by double-laser synergistic ultrahigh-speed laser cladding |
| CN217895752U (en) * | 2022-06-20 | 2022-11-25 | 南京中科煜宸激光技术有限公司 | System for preparing high-quality anti-corrosion wear-resistant coating on surface of hydraulic support through cooperation of double light beams |
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Inventor after: Sun Haijiang Inventor after: Jiang Shichun Inventor after: Xing Fei Inventor after: Dong Cheng Inventor after: Suo Hongbo Inventor after: Chang Lili Inventor after: Zhou Wenchao Inventor before: Jiang Shichun Inventor before: Xing Fei Inventor before: Dong Cheng Inventor before: Suo Hongbo Inventor before: Chang Lili Inventor before: Zhou Wenchao |