CN111057987A - Preparation method of high-temperature wear-resistant coating for flat plate gas turbine product - Google Patents
Preparation method of high-temperature wear-resistant coating for flat plate gas turbine product Download PDFInfo
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- CN111057987A CN111057987A CN201911321869.5A CN201911321869A CN111057987A CN 111057987 A CN111057987 A CN 111057987A CN 201911321869 A CN201911321869 A CN 201911321869A CN 111057987 A CN111057987 A CN 111057987A
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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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
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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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/01—Selective coating, e.g. pattern coating, without pre-treatment of the material to be coated
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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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
Abstract
The invention discloses a preparation method of a high-temperature wear-resistant coating for a flat gas turbine product, which is characterized in that a spray gun arranged on a robot is used for spraying the flat gas turbine product subjected to sand blasting, and the preparation method specifically comprises the following steps: on the support face of spraying frock is arranged in to dull and stereotyped class combustion engine product after will sandblast, evenly be provided with a plurality of support faces along the circumferencial direction on the spraying frock, will on the outer revolving stage of axle is arranged in to the spraying frock, the movement track of control spray gun with the movement track of control spray gun through the robot motion control system control robot to and the rotation of outer revolving stage of control axle, transfer the dull and stereotyped class product of spraying parameter control spray gun on to multiaspect spraying frock through plasma spraying control system simultaneously and carry out the spraying. The invention provides a batch and automatic preparation method of flat plates or similar products, which aims to improve the production efficiency and the coating stability of a high-temperature wear-resistant coating.
Description
Technical Field
The invention belongs to the technical field of production of ground heavy gas turbines, and particularly relates to a batch and automatic preparation method of a high-temperature wear-resistant coating of a flat-plate gas turbine component.
Background
In the production and manufacture of heavy-duty gas turbines, the high-temperature wear-resistant coating is extremely widely applied, chromium carbide is usually selected as a coating material for the high-temperature wear-resistant coating, the chromium carbide coating is hard and compact, has good high-temperature erosion wear resistance, abrasive wear resistance, hard surface wear resistance and other properties, can obviously prolong the service life of parts, and almost covers all parts including a combustor, a combustion chamber and compressor cylinder, a turbine cylinder, a bypass mechanism, an intermediate shaft and the like. The sliding plate product belongs to a flat plate part of a heavy-duty combustion engine and has the characteristics of large quantity, high assembly precision requirement, severe service environment and the like. During the operation of the combustion engine, the air inflow of the bypass mechanism into the combustion chamber is adjusted to deal with various complex working conditions during the operation, so that the weight is increased. However, in recent years, due to the influence of our country environment and natural gas amount, the demand of heavy-duty combustion engines is obviously improved in quantity and quality, and accordingly, the requirements on the production efficiency and quality stability of high-temperature wear-resistant coatings are higher and higher. However, the flat plate type parts in the heavy combustion engine still adopt a manual spraying or single piece spraying mode to spray the high-temperature wear-resistant coating, and the manual spraying or single piece spraying mode has low production efficiency and high manufacturing cost, and the thickness uniformity and the quality stability of the coating cannot be ensured. Intelligent spraying and smart protection of the manipulator are essential means in terms of improving efficiency, reducing cost and improving coating stability, and are also a future development trend.
Disclosure of Invention
The technical problem solved by the invention is as follows: provides a batch and automatic preparation method of flat plates or similar products, so as to improve the production efficiency and the coating stability of the high-temperature wear-resistant coating.
The technical scheme adopted by the invention is as follows:
a preparation method of a high-temperature wear-resistant coating for a flat gas turbine product sprays a sandblasted flat product through a spray gun arranged on a robot, and specifically comprises the following steps: on the support face of spraying frock is arranged in to dull and stereotyped class combustion engine product after will sandblast, evenly be provided with a plurality of support faces along the circumferencial direction on the spraying frock, will on the outer revolving stage is arranged in to the spraying frock, the movement track of control robot through the motion control system of robot is with the movement track of control spray gun to and the rotation of outer revolving stage of control axle, transfer the spraying parameter control spray gun through plasma spraying control system simultaneously and carry out the spraying to dull and stereotyped class combustion engine product on the spraying frock.
Preferably, the spraying tool comprises a connecting cylinder, an upper base plate, a lower base plate, supporting plate surfaces and a tail cylinder sliding plate supporting plate, wherein the connecting cylinder is connected with the upper base plate and the lower base plate, 3-5 convex edges are uniformly distributed on the upper base plate along the circumferential direction, the supporting plate surfaces are connected on any one of the convex edges, the supporting plate surfaces are obliquely arranged on the convex edges and form 45-60-degree two-face angles with the convex edges, the tail cylinder sliding plate supporting plate is further arranged on the convex edges, and the tail cylinder sliding plate supporting plate is connected with the supporting plate.
Preferably, the support plate surface is provided with 1-2 groups of flat plate type combustion engine product mounting pieces.
Preferably, the supporting plate surface is a porous structure.
Preferably, a lifting lug is arranged on the tail cylinder sliding plate supporting plate.
Preferably, the robot motion control system comprises a main control module, wherein the main control module controls a coating preparation module, a base point modification module and a return module;
the coating preparation module comprises a single-side coating preparation module or a multi-side coating preparation module and is used for ensuring the consistency of kinematic parameters in the motion track of the spray gun, including the moving speed of the spray gun, the spraying distance, the spraying angle and the path interval, and controlling the operation angle of the outer shaft turntable;
the return module is used for realizing the initial ignition of the spray gun and returning the spray gun to a safe position after the spraying is finished;
the base point modification module is used for modifying the base point of the coating preparation program and the return target point in the return program;
preferably, the method specifically comprises the following steps:
a. removing grease and pollutants in a spraying area and a related area on the flat plate product;
b. covering and protecting the non-spraying area, and carrying out sand blasting on the spraying area of the product by using a sand blasting material;
c. removing residual gravel, checking whether a sand blasting area is complete, and exposing a non-spraying area after confirming that the surface has no attachments such as oil stain, dirt, oxide skin, paint and the like;
d. placing the flat plate product subjected to sand blasting on a supporting plate surface on a spraying tool, placing the spraying tool on an outer shaft rotary table, and then resetting the outer shaft rotary table to 0 degree;
e. calling and operating technological parameters for preparing the high-temperature wear-resistant coating on a plasma spraying system;
f. the base point modification module is called through the main control module, the base point and the return target point in the product preparation program are modified, the coating preparation module, the base point modification module and the return module controlled by the main control module are debugged once under the condition that the spray gun is not ignited, and spraying operation is started after the base point modification module and the return module are correct;
g. and after the requirement of the high-temperature wear-resistant coating thickness of the product is met, cleaning powder, dirt and the coating in the non-spraying area, and finishing the preparation of the coating.
Preferably, in the step a, grease and pollutants in the spraying area and the related area on the flat plate product are removed in a manner that a cleaning cloth or a brush is dipped in a cleaning agent for cleaning.
Preferably, a shielding belt or a shielding tool is used for shielding and protecting the non-spraying area in the step b.
Preferably, the chromium carbide coating is sprayed by the preparation method of the high-temperature wear-resistant coating for the flat plate type gas turbine product, wherein in a coating preparation module, the moving speed of a spray gun in kinematic parameters in the motion track of the spray gun is 350-450 mm/s, the spraying distance is 115-125 mm, the spraying angle is 80-90 degrees, and the path interval is 4-5 mm.
According to the invention, the flat plate type gas turbine products are assembled on the spraying tool, the spraying tool is installed on the outer shaft rotary table, and the flat plate type gas turbine products on each supporting plate surface on the spraying tool are sprayed by controlling the movement track of the spray gun and the automatic operation of the outer shaft rotary table, so that the automatic and batch production of spraying preparation is realized, 6-10 spraying preparations can be realized at one time, and the wear-resistant coating preparation of bulk type quantity products can also be realized by only installing 1-2 flat plate type gas turbine products on the spraying tool, so that the spraying production efficiency is improved, and the preparation cost is reduced. And the coating thickness of the flat plate product prepared by the method is uniform, and the quality is stable.
Drawings
FIG. 1 is a schematic view of a simulated spray application of the present invention;
FIG. 2 is a schematic structural view of a spray coating tool of the present invention;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is a schematic view of the upper plate construction;
fig. 5 is a metallographic representation of the chromium carbide coating prepared.
Wherein the reference symbols are:
1-lower bottom plate, 2-connecting cylinder, 3-supporting plate surface, 4-upper bottom plate, 41-convex edge, 5-tail cylinder sliding plate supporting plate, 6-large screw, 7-small screw, 8-lifting lug, 9-robot, 10-spray gun and 11-outer shaft turntable.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
Examples
The invention provides a preparation method of a high-temperature wear-resistant coating for a flat gas turbine product, as shown in figure 1, a spray gun 10 arranged on a robot 9 is used for spraying the sandblasted flat gas turbine product, and the preparation method specifically comprises the following steps: arrange the dull and stereotyped type gas turbine product after the sandblast in the support face 3 of spraying frock, evenly be provided with a plurality of support faces 3 along the circumferencial direction on the spraying frock, will on outer axle revolving stage 11 is arranged in to the spraying frock, through the movement track of robot motion control system control robot 9 with the movement track of control spray gun 10 to and the rotation of control outer axle revolving stage 11, transfer the spraying parameter control spray gun through plasma spraying control system simultaneously and carry out the spraying to the dull and stereotyped type gas turbine product on the spraying frock.
The spraying tool is provided with a plurality of supporting plate surfaces 3 along the circumferential direction, a flat gas turbine product subjected to sand blasting is placed on the spraying tool, then the spraying tool is installed on an outer shaft rotary table 11, the outer shaft rotary table 11 is a rotary table structure of a person skilled in the art, and detailed explanation is omitted; and then controlling the motion track of the robot 9 by a robot motion control system to control the motion track of the spray gun 10, because the spray gun 10 is fixedly arranged on the robot 9, informing the system and controlling the rotation of the outer shaft turntable 11, wherein the structure of the spray gun 10 and the structure of the robot 9 are common devices and devices of a person skilled in the art and are not described in detail herein, and simultaneously calling the spraying parameters by the plasma spraying control system to control the spray gun 10 to spray the flat plate type combustion engine product on the spraying tool. The plasma spraying control system in the present invention is a conventional spraying control system well known to those skilled in the art, and how to use the system to call the spraying parameters is also a conventional technical means in the art, and the setting of the spraying parameters is determined according to the specific spraying material and the spraying requirement, and is determined by the actual situation of spraying, which is not described in detail herein.
According to the invention, a flat gas turbine product subjected to sand blasting is placed on a spraying tool uniformly provided with a plurality of supporting plate surfaces 3 along the circumferential direction, the spraying tool is placed on an outer shaft rotary table 11, the movement track of a spray gun 10 and the rotation of the outer shaft rotary table 11 are controlled by a robot movement control system, and the spray gun 10 is controlled by calling spraying parameters through a plasma spraying control system to spray the flat product. Because the spraying tool is provided with the plurality of supporting plate surfaces 3 along the circumferential direction and is arranged on the outer shaft rotary table 11, a plurality of flat plate type combustion engine products arranged on the spraying tool can be automatically and massively produced by controlling the rotation of the outer shaft rotary table 11 and the movement track of the spray gun, the spraying production efficiency is improved, the preparation cost is reduced, in addition, the spraying of the bulk type quantity can also be realized by arranging 1-2 flat plate type combustion engine products on the spraying tool, in addition, the coating thickness of the flat plate type products prepared by adopting the method is uniform, and the quality is stable.
In the invention, as shown in fig. 2-4, the spraying tool comprises a connecting cylinder 2, an upper base plate 4, a lower base plate 1, a supporting plate surface 3 and a tail cylinder sliding plate supporting plate 5, wherein the connecting cylinder 2 is connected with the upper base plate 4 and the lower base plate 1, 3-5 convex edges 41 are uniformly distributed on the upper base plate 4 along the circumferential direction, the supporting plate surface 3 is connected on any convex edge 41, the supporting plate surface 3 is obliquely arranged on the convex edge 41 and forms a dihedral angle of 45-60 degrees with the convex edge 41, the tail cylinder sliding plate supporting plate 5 is further arranged on the convex edge 41, and the tail cylinder sliding plate supporting plate 5 is connected with the supporting plate surface 3. The connecting cylinder 2 of the spraying tool is used for connecting an upper bottom plate 4 and a lower bottom plate 1, the lower bottom plate 1 is used for being connected with an outer shaft rotary table 11, a circular plate is generally selected, 3-5 convex edges 41 are uniformly distributed on the upper bottom plate 4 in the circumferential direction, a supporting plate surface 3 which is obliquely arranged is connected onto any convex edge 41 on the upper bottom plate, the supporting plate surface and the convex edge 41 form a 45-60-degree dihedral angle, and when the supporting plate surface 3 and the convex edge 41 form a 45-60-degree dihedral angle, the product can be conveniently loaded and unloaded, the stability of the product on the device can be improved, and the robot can conveniently walk and spray. The supporting plate surfaces 3 are used for mounting flat plate type combustion engine products, and because the problem of rotational inertia is considered, the number of the supporting plate surfaces 3 is not too large, and the rotational inertia is large due to too many supporting plate surfaces 3, so that the tool swings back and forth to affect spraying, and therefore, 3-5, preferably 5, supporting plate surfaces 3 are provided in the invention, and therefore, 3-5 convex edges 41, preferably 5 convex edges 41 are uniformly distributed on the corresponding upper bottom plate 4 along the circumferential direction. Meanwhile, in order to stabilize the supporting plate surface 3 so as to support the flat plate type combustion engine product, a tail cylinder sliding plate supporting plate 5 is further arranged on the convex edge 41, and the tail cylinder sliding plate supporting plate 5 is connected with the supporting plate surface 3, so that the convex edge 41, the tail cylinder sliding plate supporting plate 5 and the supporting plate surface 3 form a three-diamond column, and the supporting plate surface 3 is stabilized better.
In the invention, as shown in fig. 2-3, 1-2 groups of flat plate type combustion engine product installation parts are arranged on the support plate surface 3 on the spraying tool, so 1-2 flat plate type combustion engine products can be installed on one support plate surface 3, in the invention, a preferable mode is that 2 flat plate type combustion engine product installation components are arranged on the support plate surface 3, and 5 support plate surfaces are arranged on the spraying tool, as shown in fig. 2, 10 flat plate type combustion engine products can be sprayed at one time, and the tool cannot swing back and forth. In the invention, the set of the flat plate type gas turbine product mounting pieces are 4 large screws 6, the flat plate type gas turbine product is nailed on the supporting plate surface 3, small screws 7 can be arranged beside the large screws 6 according to the actual condition of the flat plate type gas turbine product, in addition, different flat plate type gas turbine product mounting pieces can be arranged according to the actual condition, and the flat plate type gas turbine product mounting pieces are not limited to the large screws and the small screws.
In the invention, as shown in fig. 1-3, the support plate surface 3 on the spraying tool is of a porous structure. The aim is to (1) reduce the weight of the spraying device, reduce the moment of inertia and facilitate the positioning; (2) the heat dissipation efficiency of the spraying device is improved, the heat dissipation waiting time in the spraying process is reduced, and the spraying efficiency is improved; in addition, the service life damage of the equipment and the production cost of the spraying powder caused by frequent ignition and stopping are reduced. The hollow structure is preferably that two round holes which are the same in size and are arranged in parallel along the length direction of the support plate surface are arranged on the support plate surface 3, as shown in fig. 1-3, the size of the round holes can be consistent with that of round holes of a flat plate type combustion engine product, and compared with the arrangement that a plurality of small round holes are arranged on the support plate 3, the hollow structure not only can reduce the weight of the spraying device, but also can further improve the heat dissipation efficiency of the spraying device, reduce the heat dissipation waiting time in spraying and improve the spraying efficiency.
In the invention, as shown in fig. 1, a lifting lug 8 is arranged on the tail cylinder sliding plate supporting plate 5 on the spraying tool. The spraying tool is convenient to install on the outer shaft rotary table 11.
The robot motion control system for controlling the motion track of the robot and the outer shaft turntable comprises a main control module, wherein the main control module controls a coating preparation module, a base point modification module and a return module;
the coating preparation module comprises a single-side coating preparation module or a multi-side coating preparation module and is used for ensuring the consistency of kinematic parameters in the movement track of the spray gun, wherein the kinematic parameters comprise the moving speed of the spray gun, the spraying distance, the spraying angle, the path interval and the operation angle of the outer shaft turntable;
the return module is used for realizing the initial ignition of the spray gun and returning the spray gun to a safe position after the spraying is finished;
the base point modification module is used for modifying the base point of the coating preparation program and the return target point in the return program;
in the invention, the spraying tool, the robot motion control system and the plasma spraying control system are specifically prepared by the following steps:
a. removing grease and pollutants in a spraying area and a related area on the flat plate product; grease and pollutants in a spraying area and a related area on the flat plate product can be removed in a manner of dipping a cleaning agent on a clean rag or a brush for cleaning;
b. covering and protecting the non-spraying area, and carrying out sand blasting on the spraying area of the product by using a sand blasting material; a non-spraying area can be hidden and protected by adopting a shielding belt or a shielding tool;
c. removing residual gravel, checking whether a sand blasting area is complete, and exposing a non-spraying area after confirming that the surface has no attachments such as oil stain, dirt, oxide skin, paint and the like; clean and dry compressed air can be adopted to clean residual gravel;
d. placing the sandblasted flat gas turbine product on a support plate surface on a spraying tool, placing the spraying tool on an outer shaft rotary table, and then resetting the outer shaft rotary table to 0 degree;
e. calling and operating technological parameters for preparing the high-temperature wear-resistant coating on a plasma spraying system;
f. the base point modification module is called through the main control module, the base point and the return target point in the product preparation program are modified, the coating preparation module, the base point modification module and the return module controlled by the main control module are debugged once under the condition that the spray gun is not ignited, and spraying operation is started after the base point modification module and the return module are correct;
g. and after the requirement of the high-temperature wear-resistant coating thickness of the product is met, cleaning powder, dirt and the coating in the non-spraying area, and finishing the preparation of the coating.
And (e) using the preparation method of the high-temperature wear-resistant coating of the flat gas turbine product for spraying the chromium carbide coating, calling and operating the chromium carbide coating spraying process parameters on the plasma spraying system in the step (e), wherein the chromium carbide coating spraying process parameters can adopt the chromium carbide coating spraying process parameters in the prior art, and are not described in detail, in the coating preparation module in the step (f), setting the spray gun moving speed of 350-450 mm/s, the spraying distance of 115-125 mm, the spraying angle of 80-90 degrees, the path interval of 4-5 mm and other steps and conditions unchanged in the kinematic parameters in the spray gun motion track, and spraying the chromium carbide coating. The spraying result is shown in fig. 5, and it can be seen from fig. 5 that the coating thickness is uniform, and the coating thicknesses of the two selected base points are 226.93 micrometers and 240.10 micrometers respectively, and the coating error is 13.17 micrometers, which is much smaller than the coating error (± 50 micrometers) of the prior art, so that the flat plate type combustion engine product prepared by the method of the present application has uniform thickness and stable spraying quality.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. A preparation method of a high-temperature wear-resistant coating for a flat gas turbine product is characterized by spraying the flat gas turbine product subjected to sand blasting by a spray gun arranged on a robot, and comprises the following steps: on the support face of spraying frock is arranged in to dull and stereotyped type gas turbine product after will sandblast, evenly be provided with a plurality of support faces along the circumferencial direction on the spraying frock, will on the outer revolving stage is arranged in to the spraying frock, the movement track of control spray gun with the movement track of control spray gun through the robot motion control system control robot to and the rotation of outer revolving stage of control axle, transfer the spraying parameter control spray gun through plasma spraying control system simultaneously and carry out the spraying to the dull and stereotyped type gas turbine product of arranging on the spraying frock.
2. The method for preparing the high-temperature wear-resistant coating for the flat-plate gas turbine product according to claim 1, wherein the spraying tool comprises a connecting cylinder, an upper base plate, a lower base plate, a supporting plate surface and a tail cylinder sliding plate supporting plate, the connecting cylinder is connected with the upper base plate and the lower base plate, 3-5 convex edges are uniformly distributed on the upper base plate along the circumferential direction, the supporting plate surface is connected to any one convex edge, the supporting plate surface is obliquely arranged on the convex edge and forms a 45-60-degree dihedral angle with the convex edge, the tail cylinder sliding plate supporting plate is further arranged on the convex edge, and the tail cylinder sliding plate supporting plate is connected with the supporting plate.
3. The method for preparing the high-temperature wear-resistant coating for the flat plate type gas turbine product as claimed in claim 2, wherein 1-2 groups of installation parts for the flat plate type gas turbine product are arranged on the surface of the supporting plate.
4. The method for preparing the high-temperature wear-resistant coating for the flat plate type combustion engine product according to claim 3, wherein the supporting plate surface is of a porous structure.
5. The method for preparing the high-temperature wear-resistant coating of the flat plate type combustion engine product according to claim 4, wherein a lifting lug is arranged on the supporting plate of the tail cylinder sliding plate.
6. The method for preparing the high-temperature wear-resistant coating of the flat plate type gas turbine product according to any one of claims 1 to 5, wherein the robot motion control system comprises a main control module, the main control module controls the coating preparation module, the base point modification module and the return module;
the coating preparation module comprises a single-side coating preparation module or a multi-side coating preparation module and is used for ensuring the consistency of kinematic parameters in the motion track of the spray gun, including the moving speed of the spray gun, the spraying distance, the spraying angle and the path interval, and controlling the operation angle of the outer shaft turntable;
the return module is used for realizing the initial ignition of the spray gun and returning the spray gun to a safe position after the spraying is finished;
the base point modification module is used for modifying the base point of the coating preparation program and the return target point in the home-returning program.
7. The preparation method of the high-temperature wear-resistant coating for the flat plate type combustion engine product according to claim 6, which is characterized by comprising the following steps:
a. removing grease and pollutants in a spraying area and a related area on the flat plate product;
b. covering and protecting the non-spraying area, and carrying out sand blasting on the spraying area of the product by using a sand blasting material;
c. removing residual gravel, checking whether a sand blasting area is complete, and exposing a non-spraying area after confirming that the surface has no attachments such as oil stain, dirt, oxide skin, paint and the like;
d. placing the flat plate product subjected to sand blasting on a supporting plate surface on a spraying tool, placing the spraying tool on an outer shaft rotary table, and then resetting the outer shaft rotary table to 0 degree;
e. calling and operating technological parameters for preparing the high-temperature wear-resistant coating on a plasma spraying system;
f. the base point modification module is called through the main control module, the base point and the return target point in the product preparation program are modified, the coating preparation module, the base point modification module and the return module controlled by the main control module are debugged once under the condition that the spray gun is not ignited, and spraying operation is started after the base point modification module and the return module are correct;
g. and after the requirement of the high-temperature wear-resistant coating thickness of the product is met, cleaning powder, dirt and the coating in the non-spraying area, and finishing the preparation of the coating.
8. The method for preparing a high-temperature wear-resistant coating for a flat plate type gas turbine product according to claim 7, wherein in the step a, grease and pollutants in a spraying area and a related area on the flat plate type product are removed in a manner that a clean rag or a brush is dipped in a cleaning agent for cleaning.
9. The method for preparing the high-temperature wear-resistant coating of the flat plate type gas turbine product according to claim 7, wherein a shielding belt or a shielding tool is adopted in the step b to hide and protect the non-spraying area.
10. The preparation method of the high-temperature wear-resistant coating for the flat gas turbine product, as claimed in claim 9, wherein in the coating preparation module in step f, the moving speed of the spray gun in kinematic parameters of the motion track of the spray gun is 350-450 mm/s, the spraying distance is 115-125 mm, the spraying angle is 80-90 degrees, and the path interval is 4-5 mm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116984146A (en) * | 2023-09-27 | 2023-11-03 | 泰州市永正救护装备有限公司 | Rust-proof treatment device for fire-fighting equipment |
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| CN116984146B (en) * | 2023-09-27 | 2023-12-12 | 泰州市永正救护装备有限公司 | Rust-proof treatment device for fire-fighting equipment |
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Application publication date: 20200424 |