CN113718245B - Preparation method of high-hardness cladding coating of rotary part - Google Patents
Preparation method of high-hardness cladding coating of rotary part Download PDFInfo
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- CN113718245B CN113718245B CN202110980442.7A CN202110980442A CN113718245B CN 113718245 B CN113718245 B CN 113718245B CN 202110980442 A CN202110980442 A CN 202110980442A CN 113718245 B CN113718245 B CN 113718245B
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- rotating member
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- cladding
- induction heating
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- 239000011248 coating agent Substances 0.000 title claims abstract description 53
- 238000000576 coating method Methods 0.000 title claims abstract description 53
- 238000005253 cladding Methods 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 230000006698 induction Effects 0.000 claims abstract description 54
- 239000010425 asbestos Substances 0.000 claims abstract description 40
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 37
- 238000004321 preservation Methods 0.000 claims abstract description 29
- 239000000956 alloy Substances 0.000 claims abstract description 26
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 238000007711 solidification Methods 0.000 claims abstract description 8
- 230000008023 solidification Effects 0.000 claims abstract description 8
- 239000011159 matrix material Substances 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000005238 degreasing Methods 0.000 claims description 3
- 238000010285 flame spraying Methods 0.000 claims description 2
- 238000007788 roughening Methods 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 4
- 238000005488 sandblasting Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910003470 tongbaite Inorganic materials 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C23C4/18—After-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Coating By Spraying Or Casting (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a preparation method of a high-hardness cladding coating of a rotating member, which comprises the following steps: 1) Fixing a rotary member on a rotary workbench, wherein a layer of alloy or alloy ceramic composite powder layer is preset on the surface of the rotary member; 2) Starting an induction heating device to enable a rotating member positioned in the induction heating ring to be heated in an induction way, and enabling an alloy or alloy ceramic composite powder layer on the surface of the rotating member to be melted and solidified to form a coating combined with a matrix; 3) Automatically winding the asbestos rope at the solidification part of the initial cladding end of the rotating member; 4) After the coating on the surface of the rotating member is completely clad, the induction heating device is turned off; 5) The rotary member continues to rotate until the asbestos rope heat preservation layer on the surface of the cladding layer is wound; 6) And (3) placing the rotating member with the surface wound with the complete asbestos rope layer into a heat preservation furnace for heat preservation, and slowly cooling the furnace to room temperature. The preparation method of the high-hardness cladding coating of the rotating member realizes synchronous heat preservation of the coating and prevents cracking phenomenon from occurring when the induction cladding coating is cooled.
Description
Technical Field
The invention relates to the technical field of surface engineering, in particular to a preparation method of a high-hardness cladding coating of a rotating member.
Background
The preparation of a corrosion-resistant and wear-resistant high-hardness coating on the surface of a rotating member by induction remelting is a common surface engineering technology, but when the high-hardness coating is clad, the coating with low toughness is easy to crack due to different expansion coefficients of the coating and a matrix, so that the rotating member is often required to be insulated after cladding. However, because the rotating member is longer, when the coating of the rotating member is subjected to heat preservation after cladding, the earliest cladding coating is cooled to a lower temperature in the air, so that a cracking phenomenon occurs, and therefore, a synchronous heat preservation method for cladding the rotating member is urgently needed to be developed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a preparation method of a high-hardness cladding coating of a rotating member, which enables the rotating member to be subjected to induction cladding and to be subjected to synchronous heat preservation, and prevents cracking phenomenon temperature from occurring when the induction cladding coating is cooled. The technical scheme adopted by the invention is as follows:
a preparation method of a high-hardness cladding coating of a rotary member comprises the following steps:
1) The rotary member passes through an induction heating ring of an induction heating device and is fixed on a rotary worktable, and a layer of alloy or alloy ceramic composite powder layer is preset on the surface of the rotary member;
2) Starting an induction heating device to enable a rotating member positioned in the induction heating ring to be heated by induction, and melting an alloy or alloy ceramic composite powder layer on the surface of the rotating member, and forming a coating metallurgically bonded with a matrix after solidification;
3) The solidification part of the initial cladding end of the rotating member is automatically wound with the asbestos rope by utilizing the rotating motion of the rotating member, and the heat preservation is carried out through the asbestos rope layer, so that the cladding layer is prevented from being rapidly cooled;
4) After the coating on the surface of the rotating member is completely clad, the induction heating device is turned off;
5) The rotary member continues to rotate, and the asbestos rope moves along the moving direction of the induction heating ring under the action of the guide device until the asbestos rope heat preservation layer on the surface of the cladding layer is wound;
6) And (3) placing the rotating member with the surface wound with the complete asbestos rope layer into a heat preservation furnace for heat preservation for a period of time, and slowly cooling the furnace to room temperature, so as to prepare the high-hardness cladding coating on the rotating member.
Preferably, the method for preparing the high-hardness cladding coating of the rotary member comprises the following steps: and 2) before induction cladding, degreasing and roughening the surface of the rotary member, and prefabricating an alloy or alloy carbide powder layer by adopting a coating or flame spraying method.
The degreasing adopts solvents of alcohol and acetone to clean the surface of the workpiece, and coarsens the workpiece to remove oxide skin on the surface of the workpiece through sand blasting, so that the surface is rough; alloy powders include nickel-based, iron-based and cobalt-based powders; the alloy carbide powder is mainly nickel-based, iron-based and cobalt-based powder mixed with tungsten carbide, chromium carbide or titanium carbide particles in a certain proportion.
Preferably, the method for preparing the high-hardness cladding coating of the rotary member comprises the following steps: the output power of the induction heating device in the step 2) is 30-400 KW, the current is 50-300A, the rotation speed of the workpiece is 5-120 r/min, and the moving speed of the induction coil is 5-500 mm/min.
Preferably, the method for preparing the high-hardness cladding coating of the rotary member comprises the following steps: the cross section of the asbestos rope is in a flat rectangle, and when the asbestos rope is wound on the rotating member, the overlapping parts adjacent to the two circles account for 30% -70% of the width part of the asbestos rope.
Preferably, the method for preparing the high-hardness cladding coating of the rotary member comprises the following steps: the heat preservation temperature in the step 6) is 300-600 ℃, and the heat preservation time is 8-16 h.
The invention has the advantages that:
(1) According to the preparation method of the high-hardness cladding coating of the rotating member, induction cladding is adopted, and meanwhile, the part of the cladding coating is wrapped and covered by the asbestos rope, so that the synchronous heat preservation effect on the coating is realized, and the cracking phenomenon of the induction cladding coating during cooling is prevented.
Drawings
Fig. 1 shows a plasma cladding rotating device with induction heating function.
Description of the drawings: 1. the device comprises a center, an asbestos rope layer, an induction heating ring, a rotating member and an asbestos rope guider.
Detailed Description
The invention will be further illustrated with reference to specific examples.
Examples
As shown in fig. 1, a method for preparing a high-hardness cladding coating of a rotating member comprises the following steps:
1) A rotary member 4 passes through an induction heating ring 3 of an induction heating device and is fixed on a rotary worktable 1, and a layer of alloy or alloy ceramic composite powder layer is preset on the surface of the rotary member 4;
2) Starting an induction heating device to enable a rotary member 4 positioned in an induction heating ring 3 to be subjected to induction heating, and melting an alloy or alloy ceramic composite powder layer on the surface of the rotary member, so as to form a coating which is metallurgically bonded with a matrix after solidification;
3) The asbestos rope 2 is automatically wound on the solidification part of the initial cladding end of the rotary member 4 by utilizing the rotary motion of the rotary member, and the heat preservation is carried out through the asbestos rope layer 2, so that the cladding layer is prevented from being rapidly cooled;
4) After the coating on the surface of the rotating member 4 is completely clad, the induction heating device is turned off;
5) The rotary member 4 continues to rotate, and the asbestos rope moves along the moving direction of the induction heating ring under the action of the guide device until the asbestos rope heat preservation layer on the surface of the cladding layer is wound;
6) And (3) placing the rotary member 4 with the surface wound with the complete asbestos rope layer into a heat preservation furnace for heat preservation for a period of time, and slowly cooling the furnace to room temperature, so as to prepare the high-hardness cladding coating on the rotary member.
The center 1 can be used when the rotary member 4 is fixed on the rotary table 1, namely, the center 1 plays a role in fixing and supporting the rotary member 4; the asbestos rope guide 5 can synchronously move rightwards along with the induction heating ring 3, plays a role in guiding the asbestos rope, and controls the asbestos rope to be continuously wound from left to right in a circle-by-circle manner so as to wrap the outer surface of the whole cladding coating.
The clad rotating member in the preparation method is clad and synchronously twined by asbestos ropes and insulated, so that the crack-free alloy or alloy carbide composite coating is clad on the surface of the rotating workpiece.
When the clad rotary member is clad, synchronous asbestos rope winding is carried out, the formed asbestos rope layer can effectively reduce heat dissipation of the coating, and finally, the furnace is combined with heat preservation and cooling, and finally, the alloy or alloy carbide composite coating without cracks is clad on the surface of the rotary workpiece.
Example 1
(1) Spraying a layer of Ni-Fe-Cr-B-Si coating with the thickness of 1mm on the surface of 45 steel with the diameter of 150mm and the length of 1200mm, which is subjected to cleaning and sand blasting coarsening, by adopting an oxyacetylene flame spray gun;
(2) Starting an induction heating device, setting the output power of an induction heating power supply to be 30KW, setting the current to be 82A, setting the rotation speed of a workpiece to be 45 r/min, setting the moving speed of an induction coil to be 25mm/min, so that a rotary member positioned in the induction heating coil is induction-heated, and forming a metallurgical bonding compact coating with a matrix after the Ni-Fe-Cr-B-Si coating on the surface of the rotary member is melted;
(3) Winding the asbestos rope on the coating layer at the position, which is 5cm away from the left side of the induction heating ring, of the clad end at the starting end of the rotating member by utilizing the rotating motion of the rotating member, wherein the wound asbestos rope layer can be used for preserving heat of the coating layer;
(4) After the coating on the surface of the rotating member is completely clad, the induction heater is turned off;
(5) The rotary member continues to rotate, and the asbestos rope moves along the moving direction of the induction heating ring under the action of the guide device until the asbestos rope heat preservation layer on the surface of the cladding layer is wound;
(6) The rotary member with the surface wound with the complete asbestos rope layer is placed into a heat preservation furnace to be preserved for 10 hours at 500 ℃, and the furnace is cooled to room temperature slowly, so that the crack-free high-hardness Ni-Fe-Cr-B-Si coating is prepared on the rotary member.
Example 2
(1) Spraying a Ni-Fe-Cr-B-Si+35% WC coating with the thickness of 1.2mm on the outer circle surface of a 16Mn steel rod with the diameter of 200mm and the length of 1800mm through cleaning and sand blasting coarsening by adopting an oxyacetylene flame spray gun;
(2) Starting an induction heating device, setting the output power of an induction heating power supply to be 50KW, setting the current to be 100A, setting the rotation speed of a workpiece to be 35 r/min, setting the moving speed of an induction coil to be 20mm/min, so that a rotary member positioned in the induction heating coil is induction-heated, and forming a metallurgical bonding compact coating with a matrix after solidification due to the melting of a Ni-Fe-Cr-B-Si+35% WC coating on the surface of the rotary member;
(3) Winding the asbestos rope on the coating layer at the position, which is 5cm away from the left side of the induction heating ring, of the clad end at the starting end of the rotating member by utilizing the rotating motion of the rotating member, wherein the wound asbestos rope layer can be used for preserving heat of the coating layer;
(4) After the coating on the surface of the rotating member is completely clad, the induction heater is turned off;
(5) The rotary member continues to rotate, and the asbestos rope moves along the moving direction of the induction heating ring under the action of the guide device until the asbestos rope heat preservation layer on the surface of the cladding layer is wound;
(6) The rotary member with the surface wound with the complete asbestos rope layer is placed into a heat preservation furnace to be preserved for 16 hours at 500 ℃, and then the furnace is cooled to room temperature slowly, so that the crack-free high-hardness Ni-Fe-Cr-B-Si+35% WC coating is prepared on the rotary member.
Claims (1)
1. The preparation method of the high-hardness cladding coating of the rotating member is characterized by comprising the following steps of:
1) The rotary member passes through an induction heating ring of an induction heating device and is fixed on a rotary worktable, and a layer of alloy or alloy ceramic composite powder layer is preset on the surface of the rotary member;
2) Starting an induction heating device to enable a rotating member positioned in the induction heating ring to be heated by induction, and melting an alloy or alloy ceramic composite powder layer on the surface of the rotating member, and forming a coating metallurgically bonded with a matrix after solidification;
3) The solidification part of the initial cladding end of the rotating member is automatically wound with the asbestos rope by utilizing the rotating motion of the rotating member, and the heat preservation is carried out through the asbestos rope layer, so that the cladding layer is prevented from being rapidly cooled;
4) After the coating on the surface of the rotating member is completely clad, the induction heating device is turned off;
5) The rotary member continues to rotate, and the asbestos rope moves along the moving direction of the induction heating ring under the action of the guide device until the asbestos rope heat preservation layer on the surface of the cladding layer is wound;
6) Placing the rotating member with the surface wound with the complete asbestos rope layer into a heat preservation furnace for heat preservation for a period of time, and slowly cooling the furnace to room temperature, thereby preparing a high-hardness cladding coating on the rotating member;
the output power of the induction heating device in the step 2) is 30-400 KW, the current is 50-300A, the rotation speed of a workpiece is 5-120 r/min, and the moving speed of an induction coil is 5-500 mm/min;
before induction cladding, degreasing and roughening the surface of the rotary member, and prefabricating an alloy or alloy carbide powder layer by adopting a coating or flame spraying method;
the heat preservation temperature in the step 6) is 300-600 ℃, and the heat preservation time is 8-16 h.
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| CN202110980442.7A CN113718245B (en) | 2021-08-25 | 2021-08-25 | Preparation method of high-hardness cladding coating of rotary part |
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| CN202110980442.7A CN113718245B (en) | 2021-08-25 | 2021-08-25 | Preparation method of high-hardness cladding coating of rotary part |
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| CN113718245B true CN113718245B (en) | 2024-01-30 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465294A (en) * | 2010-11-17 | 2012-05-23 | 杭州中科新松光电有限公司 | Method for carrying out laser-cladding on high-hardness nickel-based alloy material in large area |
| CN110923700A (en) * | 2019-11-26 | 2020-03-27 | 中山市名鼎科技节能有限公司 | Steel surface coating, preparation method and device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102465294A (en) * | 2010-11-17 | 2012-05-23 | 杭州中科新松光电有限公司 | Method for carrying out laser-cladding on high-hardness nickel-based alloy material in large area |
| CN110923700A (en) * | 2019-11-26 | 2020-03-27 | 中山市名鼎科技节能有限公司 | Steel surface coating, preparation method and device |
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