CN111254378A - Integrated device for synchronously realizing hot spraying-cladding - Google Patents
Integrated device for synchronously realizing hot spraying-cladding Download PDFInfo
- Publication number
- CN111254378A CN111254378A CN202010272087.3A CN202010272087A CN111254378A CN 111254378 A CN111254378 A CN 111254378A CN 202010272087 A CN202010272087 A CN 202010272087A CN 111254378 A CN111254378 A CN 111254378A
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- Prior art keywords
- cladding
- spraying
- equipment
- welding gun
- fixed
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Classifications
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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
- C23C4/129—Flame 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
- 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
-
- 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
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
Abstract
The invention relates to an integrated device for synchronously realizing thermal spraying and cladding, which consists of cladding equipment, an automatic travelling mechanism and dust removal equipment, wherein a workpiece is fixed by a workpiece clamping and rotating device, a spraying/welding gun is fixed by a spraying/welding gun fixing and spraying distance adjusting device, the cladding equipment is fixed by a cladding equipment fixing and distance adjusting device, the travelling of the spraying/welding gun and the cladding equipment in the device is controlled by the automatic travelling mechanism, the automatic travelling mechanism comprises a left and right travelling mechanism driven by a motor and a limit mechanism which travels in a reciprocating manner, and dust generated in the thermal spraying and cladding process in the device is collected to a powder hopper below the cladding equipment by the dust removal equipment fixed on the automatic travelling mechanism of the spraying/welding gun and the cladding equipment. The invention provides a multifunctional operating device which can realize metallurgical bonding between a coating and a substrate, reduce the internal thermal stress of the coating and reduce energy consumption, and the thickness of the prepared coating can be adjusted from 0.1mm to 50 mm.
Description
Technical Field
The invention relates to the technical field of remanufacturing equipment, in particular to an integrated device for synchronously realizing thermal spraying-cladding.
Background
The thermal spraying is a technological process of heating the coating material to be molten or semi-molten by various heat sources, then impacting the coating material to the surface of a treated substrate at a high speed by flame flow or high-speed gas, and depositing to form a coating.
The advantages of the thermal spraying technology are mainly reflected in the following points:
(1) the coating and the substrate material are rich, and coatings of various materials can be prepared on various substrates.
(2) The temperature of the matrix is low. The temperature of the substrate is generally between 30 ℃ and 200 ℃, so that the deformation is small and the heat affected zone is shallow.
(3) The operation is flexible. The size and shape of the substrate are not limited, and the substrate can be sprayed indoors and operated outdoors. Not only can be sprayed integrally, but also can be sprayed locally.
(4) The range of coating thickness is wide. Can prepare coatings of dozens of micrometers to several millimeters and is easy to control.
The disadvantages of the thermal spraying technology are mainly reflected in that the particles sprayed partially cannot be completely melted in the spraying process, the particles with insufficient deformation impact on the surface of the base material, and gaps or cavities are inevitably formed between the particles after cooling and solidification, so that the performance of the coating is reduced. In addition, the bond between the coating and the substrate is mainly a mechanical bond, the bonding strength is not very high, and the rapid cooling of the particles and the large temperature gradient in the coating preparation process generally cause the generation of residual tensile stress in the coating. Meanwhile, the thermal spraying technology also has the problems of low utilization rate of spraying materials, large waste, low thermal efficiency and the like. Therefore, the coating must be post-treated to improve the compactness and bonding strength of the coating and release the residual stress. Such techniques include flame cladding, laser cladding, electron beam surface treatment, and induction cladding.
The thermal spraying technology and the surface cladding technology have wide application in a plurality of industrial fields, and in the aspect of equipment composition, the two kinds of equipment have a plurality of common components or only need to slightly improve the equipment, so that the operating conditions of the two kinds of equipment can be simultaneously met. After the thermal spraying equipment and the cladding equipment are integrated, the utilization rate of the equipment can be improved, the time required by transfer, loading and unloading, dismounting and correcting of clamps and the like among different processes in the production process of workpieces is saved, and meanwhile, the energy consumption of the integrated equipment can be greatly reduced. Therefore, the development of a multifunctional operating device capable of synchronously realizing thermal spraying and cladding has urgent research value, and also has good economic benefit and industrial application potential, which is the basis and the place where the invention can be completed.
Disclosure of Invention
Aiming at the urgent need of the integration of the existing thermal spraying and cladding technologies, the invention provides a multifunctional operating device for synchronously realizing thermal spraying and cladding, which can realize metallurgical bonding between a coating and a substrate, reduce the internal thermal stress of the coating and reduce the energy consumption, and the thickness of the prepared coating can be adjusted from 0.1mm to 50 mm.
The technical scheme of the invention is as follows:
an integrated device for synchronously realizing hot spraying-cladding,
the device consists of cladding equipment, an automatic walking mechanism and dust removing equipment,
the workpiece is fixed by a workpiece clamping and rotating device, the spraying/welding gun is fixed by a spraying/welding gun fixing and spraying distance adjusting device, the cladding equipment is fixed by a cladding equipment fixing and distance adjusting device,
the walking of the spraying/welding gun and the cladding equipment in the device is controlled by an automatic walking mechanism which comprises a left walking mechanism and a right walking mechanism driven by a motor and a limit mechanism capable of walking in a reciprocating manner,
dust generated in the hot spraying and cladding process in the device is collected to a powder hopper below the cladding equipment by dust removal equipment fixed on an automatic travelling mechanism of the spraying/welding gun and the cladding equipment.
Preferably, the device also comprises a central controller which is used for linking and regulating the cladding equipment, the automatic walking mechanism and the dust removing equipment. So as to ensure the adjustability, repeatability and stability of the working parameters.
Preferably, the spraying manner of the spraying/welding gun includes supersonic flame spraying, explosion spraying, plasma spraying, flame spraying, or the like.
Preferably, the cladding equipment in the device comprises equipment for flame cladding, plasma and arc cladding, laser cladding, induction cladding, electron beam cladding, composite cladding and the like.
Preferably, the device is used for processing shaft parts, and the working parameters of the device are 0-1000r/min of the rotation speed of the shaft parts; the left and right scanning speed of the spraying/welding gun and the cladding equipment is 0-50m/min, and the distance between the spraying/welding gun and the cladding equipment and the workpiece is 0-300 mm.
Preferably, the apparatus produces a coating thickness of 0.1mm to 50 mm.
In summary, after the technical scheme is adopted, the invention has the beneficial effects that:
(1) the metallurgical bonding between the prepared coating and the substrate is realized, and the bonding strength of the coating is greatly increased. And thermal spraying and cladding are almost synchronously carried out, so that the production efficiency is improved, and the effects of reducing the internal thermal stress of the coating and reducing the energy consumption are achieved.
(2) The device has high automation degree and low operation cost, and has great social and economic benefits.
Detailed Description
The invention is further illustrated by the following specific examples. The use and purpose of these exemplary embodiments are to illustrate the present invention, not to limit the actual scope of the present invention in any way, and not to limit the scope of the present invention in any way.
Example 1:
godet wheel of a certain steel mill is subjected to severe friction and abrasion due to rapid passing of steel wires, and is made of common steel (HR)C= 45) material godet wheel life is extremely short, need to adopt carbide coating technique to carry out the reinforcement of surface. The equipment of the invention is used for coating the hard alloy, and the specific parameters are as follows:
the coating material is selected as commercial Ni60 alloy powder, and the flame spraying technology is adopted to prepare the coating, wherein the spraying parameters are as follows: the pressure of combustion-supporting gas and combustible gas is 0.5MPa and 0.1MPa respectively, the flow rate is 15L/min and 8L/min respectively, the powder feeding amount is 100g/min, and the spraying distance is 150 mm. And cladding the coating by adopting induction cladding equipment with the power of 4 KW.
The rotating speed of the godet wheel in the coating preparation process is 500 r/min; the left and right scanning speeds of the spray gun and the cladding equipment are 10 m/min; the coating thickness obtained after repeated scanning was 2 mm.
After detection, the coatingThe hardness reaches HRC=63, the service life of the godet wheel sample prepared by the equipment reaches 2 times of the original service life under the same service condition after the godet wheel sample is returned to a factory.
Example 2:
ordinary steel (HR) in which the rolls of a non-ferrous alloy plant are subjected to severe frictional wear during the rolling of sheet alloysC= 45) material roll life is extremely short, need to adopt carbide coating technique to carry out the reinforcement of surface. The equipment of the invention is used for coating the hard alloy, and the specific parameters are as follows:
the coating material is selected as commercial WC-Co alloy powder, and the coating is prepared by adopting a supersonic flame spraying technology, wherein the spraying parameters are as follows: combustion-supporting gas O2The pressure of the fuel gas propane and the pressure of the compressed air are respectively 2MPa, 0.6MPa and 0.6MPa, the flow rate is respectively 240slpm, 70slpm and 380slpm, and the powder feeding gas N2The flow rate was 15slpm, the powder delivery rate was 40g/min and the spray distance was 250 mm. And cladding the coating by adopting induction cladding equipment with the power of 3 KW.
The rotating speed of the roller in the coating preparation process is 250 r/min; the left and right scanning speeds of the spray gun and the cladding equipment are 8 m/min; the coating thickness obtained after repeated scanning was 1.5 mm.
Through detection, the coating hardness reaches HRC=75, the service life of the roller sample prepared by the device reaches 2.5 times of the original service life under the same service condition after the roller sample is returned to a factory.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.
Claims (6)
1. An integrated device for synchronously realizing thermal spraying-cladding is characterized in that:
the device consists of cladding equipment, an automatic walking mechanism and dust removing equipment,
the workpiece is fixed by a workpiece clamping and rotating device, the spraying/welding gun is fixed by a spraying/welding gun fixing and spraying distance adjusting device, the cladding equipment is fixed by a cladding equipment fixing and distance adjusting device,
the walking of the spraying/welding gun and the cladding equipment in the device is controlled by an automatic walking mechanism which comprises a left walking mechanism and a right walking mechanism driven by a motor and a limit mechanism capable of walking in a reciprocating manner,
dust generated in the hot spraying and cladding process in the device is collected to a powder hopper below the cladding equipment by dust removal equipment fixed on an automatic travelling mechanism of the spraying/welding gun and the cladding equipment.
2. The integrated device for synchronously realizing thermal spraying-cladding according to claim 1, wherein: the device also comprises a central controller which is used for linking and regulating the cladding equipment, the automatic walking mechanism and the dust removing equipment. So as to ensure the adjustability, repeatability and stability of the working parameters.
3. The integrated device for synchronously realizing thermal spraying-cladding according to claim 1, wherein: the spraying mode of the spraying/welding gun comprises supersonic flame spraying, explosion spraying, plasma spraying or flame spraying and the like.
4. The integrated device for synchronously realizing thermal spraying-cladding according to claim 1, wherein: the cladding equipment in the device comprises equipment such as flame cladding, plasma and arc cladding, laser cladding, induction cladding, electron beam cladding and composite cladding thereof.
5. The integrated device for synchronously realizing thermal spraying-cladding according to claim 1, wherein: the device is used for processing shaft parts, and the working parameters of the device are 0-1000r/min of the rotation speed of the shaft parts; the left and right scanning speed of the spraying/welding gun and the cladding equipment is 0-50m/min, and the distance between the spraying/welding gun and the cladding equipment and the workpiece is 0-300 mm.
6. The integrated device for synchronously realizing thermal spraying-cladding according to claim 1, wherein: the thickness of the coating prepared by the device is 0.1mm-50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010272087.3A CN111254378A (en) | 2020-04-09 | 2020-04-09 | Integrated device for synchronously realizing hot spraying-cladding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010272087.3A CN111254378A (en) | 2020-04-09 | 2020-04-09 | Integrated device for synchronously realizing hot spraying-cladding |
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| Publication Number | Publication Date |
|---|---|
| CN111254378A true CN111254378A (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010272087.3A Pending CN111254378A (en) | 2020-04-09 | 2020-04-09 | Integrated device for synchronously realizing hot spraying-cladding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176335A (en) * | 2020-09-27 | 2021-01-05 | 南昌航空大学 | Preparation method of anti-abrasion composite coating |
| CN115044857A (en) * | 2022-06-17 | 2022-09-13 | 南京林业大学 | Large-tilling-depth rotary blade surface spraying and remelting integrated machining device |
| CN116988061A (en) * | 2023-09-27 | 2023-11-03 | 太原科技大学 | Nickel-based superalloy and surface modification method thereof |
Citations (4)
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| CN101469397A (en) * | 2007-12-26 | 2009-07-01 | 徐州正菱涂装有限公司 | Metal thermal spraying production line |
| WO2018067989A1 (en) * | 2016-10-06 | 2018-04-12 | Liquidmetal Coatings, Llc | Method of making non-galling parts using amorphous metal surfaces |
| CN109468572A (en) * | 2018-12-06 | 2019-03-15 | 苏州热工研究院有限公司 | The compound method for increasing material remanufacturing system prepares coating of thermal spraying/laser |
| CN110158010A (en) * | 2019-06-24 | 2019-08-23 | 中国石油大学(华东) | A kind of high quality axial workpiece preparation method and device based on thermal spraying and induction melting and coating technique |
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2020
- 2020-04-09 CN CN202010272087.3A patent/CN111254378A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469397A (en) * | 2007-12-26 | 2009-07-01 | 徐州正菱涂装有限公司 | Metal thermal spraying production line |
| WO2018067989A1 (en) * | 2016-10-06 | 2018-04-12 | Liquidmetal Coatings, Llc | Method of making non-galling parts using amorphous metal surfaces |
| CN109468572A (en) * | 2018-12-06 | 2019-03-15 | 苏州热工研究院有限公司 | The compound method for increasing material remanufacturing system prepares coating of thermal spraying/laser |
| CN110158010A (en) * | 2019-06-24 | 2019-08-23 | 中国石油大学(华东) | A kind of high quality axial workpiece preparation method and device based on thermal spraying and induction melting and coating technique |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112176335A (en) * | 2020-09-27 | 2021-01-05 | 南昌航空大学 | Preparation method of anti-abrasion composite coating |
| CN115044857A (en) * | 2022-06-17 | 2022-09-13 | 南京林业大学 | Large-tilling-depth rotary blade surface spraying and remelting integrated machining device |
| CN115044857B (en) * | 2022-06-17 | 2024-03-01 | 南京林业大学 | Large-tillage-depth rotary blade surface spraying remelting integrated processing device |
| CN116988061A (en) * | 2023-09-27 | 2023-11-03 | 太原科技大学 | Nickel-based superalloy and surface modification method thereof |
| CN116988061B (en) * | 2023-09-27 | 2023-12-19 | 太原科技大学 | Nickel-based superalloy and surface modification method thereof |
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Application publication date: 20200609 |
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