CN108754401A - Prevent the thermal spraying insulating coating and preparation method thereof that shaft current generates - Google Patents
Prevent the thermal spraying insulating coating and preparation method thereof that shaft current generates Download PDFInfo
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- CN108754401A CN108754401A CN201811043772.8A CN201811043772A CN108754401A CN 108754401 A CN108754401 A CN 108754401A CN 201811043772 A CN201811043772 A CN 201811043772A CN 108754401 A CN108754401 A CN 108754401A
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- insulating coating
- coating
- shaft current
- spraying
- generating
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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
-
- 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
-
- 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
- C23C4/08—Metallic material containing only metal elements
-
- 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
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The present invention relates to a kind of thermal spraying insulating coatings for preventing shaft current from generating and preparation method thereof, belong to insulating coating technical field.Insulating coating from outward appearance to inner essence respectively includes insulation surface layer, bond coating and roughened layer；The insulation performance of the insulating coating is：DC500V, resistance value >=50M Ω；Meanwhile the tensile strength properties of the insulating coating are：Rm≥40MPa.Preparation method, which is characterized in that include the following steps：1. substrate pretreated；2. roughing in surface；3. plasma spraying；4. pore closure；5. being ground.The insulating coating can obtain dense coating, considerably improve the mechanical strength and insulation performance of aluminum oxide coating layer for preventing alternating current generator from generating shaft current.
Description
Technical field
The invention belongs to insulating coating technical fields, and in particular to a kind of thermal spraying insulating coating for preventing shaft current from generating
And preparation method thereof.
Background technology
Shaft voltage is generated in alternating current generator operation to be inevitable, the alternating potential of motor rotor cutting magnetic field induction
Generated alternating current is symmetrical, and two ends of rotor does not have asymmetrical voltage generation when normal.But work as motor stator
Magnetic resistance on the circumferencial direction of iron core will generate the alternating flux intersected with axis when occurring uneven, with the rotation of magnetic pole,
The magnetic flux to interlink with axis alternately changes, and just produces shaft voltage.When the shaft voltage of motor is more than certain numerical value, bearing film can be made
Breakdown forms closed circuit through rotor, bearing and out frame along axis so as to cause shaft current, or is completed by bearing and axis
Ground connection, to make motor bearings be damaged, so the bearing portion of some motors will carry out insulation processing, it otherwise will be to electricity
Machine generates prodigious harm.
The generation of shaft current be because in the magnetic loop that the axis of motor, bearing, bearing holder (housing, cover), end cap and engine base are formed,
There is the magnetic flux changed over time to pass through, the induced potential on axis, and electric current is generated in circuit, electricity is formed when flowing through bearing
Lose phenomenon.Shaft voltage is generally all smaller, but it is also possible that generate higher shaft voltage in some motors, for example, variable-frequency motor or
The motor of inverter supply, stator use the motor etc. of fanning strip.
The bearing portion of these motors need to block the circuit of shaft current using insulation, prevent it from being closed, do not become
Access, to achieve the purpose that protect bearing, such as application No. is the Chinese utility model patents of CN200620091846.1 to disclose
A kind of motor regulating center bearing base of coating is coated with the painting for preventing shaft current from generating in motor regulating center bearing base
Layer, is sprayed using spraying process, can effectively prevent the generation of shaft current.
Invention content
In view of the above-mentioned problems, the present invention provide it is a kind of prevent shaft current generate thermal spraying insulating coating and its preparation side
Method can obtain dense coating, considerably improve the machinery of aluminum oxide coating layer for preventing alternating current generator from generating shaft current
Intensity and insulation performance.
Technical proposal that the invention solves the above-mentioned problems is as follows：
The thermal spraying insulating coating for preventing shaft current from generating from outward appearance to inner essence respectively includes insulation surface layer, bond coating and roughened layer；
The insulation performance of the insulating coating is：DC500V, resistance value >=50M Ω；
Meanwhile the tensile strength properties of the insulating coating are：Rm≥40MPa.
As a preferred embodiment of the above technical solution, the roughened layer is formed by white fused alumina sand through sandblasting.
As a preferred embodiment of the above technical solution, the mesh number of the white fused alumina sand is 24 mesh, the rough surface of the roughened layer
Degree is Ra=6 ~ 10 μm.
As a preferred embodiment of the above technical solution, the bond coating is formed by Ni5Al powder sprays, thickness be 0.035 ~
0.065mm。
As a preferred embodiment of the above technical solution, the insulation surface layer is formed by AT3 powder sprays, thickness be 0.20 ~
0.25mm。
As a preferred embodiment of the above technical solution, further include having epoxy resin hole sealing agent in the hole on the insulation surface layer.
The preparation method for preventing the thermal spraying insulating coating of shaft current generation, includes the following steps：
1. substrate pretreated：The reserved location of 0.15 ~ 0.20mm coatings is cut in advance in motor shaft bearings at both ends file location, is used
Organic solvent is cleaned by ultrasonic removal oil stain；
2. roughing in surface：Using white fused alumina sand to carrying out surface sand-blasting process at the reserved location, roughened layer is formed, processing is made
Rear surface roughness reaches Ra=6 ~ 10 μm；
3. plasma spraying：Using plasma spraying equipment, using Ni5Al powder as bond coating material, spraying forms thickness
Then the bond coating for being 0.035 ~ 0.065mm for thickness forms thickness on the bond coating using AT3 powder as material spraying
Degree is the insulating surfaces layer of 0.20 ~ 0.25mm, and it is abundant that when spraying will so that powder melts；
AT3 powder as includes that the aluminium oxide of 3wt% meets ceramic material；
Ni5Al powder is also known as aluminium nickel coat, Ni contents 95%, AL contents 5%, a kind of exothermicity self-adhesive prime coat layer material, mainly
Effect is to increase the bond strength of coating and base material, mitigates coating stress.
4. pore closure：Infiltration sealing of hole is carried out to insulating coating using epoxy resin coating sealing reagent；
5. being ground：Insulating coating is ground to finished size, the skive of thin three kinds of granularities is ground in can be used slightly.
As a preferred embodiment of the above technical solution, step 2. in, the end jump-ring slot position at position is sprayed when spraying to motor shaft
It sets and is protected with fixture.
As a preferred embodiment of the above technical solution, step 3. in, use power for 80KW plasma spraying equipment prepares coatings,
Wherein, when preparing bond coating, spray power 25kW, when preparing insulation surface layer, spray power 45kW.
As a preferred embodiment of the above technical solution, step 3. in, the temperature of motor shaft bearings at both ends shelves is using air-cooled and spraying
Speed is controlled, to mitigate influence of the process thermal stress to coating.
In conclusion the embodiment of the present invention has the advantages that：
The embodiment of the present invention provides a kind of thermal spraying insulating coating and preparation method thereof preventing shaft current generation, is handed over for preventing
Galvanic electricity machine generates shaft current, can obtain dense coating, considerably improve the mechanical strength and insulating properties of aluminum oxide coating layer
Energy；
After tested：
Its insulation performance is：DC500V, resistance value >=50M Ω；
Coating tensile strength properties are：Rm≥40MPa.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Embodiment in the present invention, ordinary skill
All other embodiment that personnel are obtained under the premise of not doing creative work, shall fall within the protection scope of the present invention.
With embodiment, the present invention is described in detail below.
Embodiment 1：The thermal spraying insulating coating for preventing shaft current from generating is respectively from outward appearance to inner essence insulation surface layer, bonds bottom
Layer and roughened layer；
Wherein, insulation surface layer is formed by AT3 powder sprays, further includes having epoxy resin hole sealing agent in hole, surface layer of insulating
Thickness is 0.20mm；Bond coating is formed by Ni5Al powder sprays, thickness 0.05mm；Roughened layer by 24 mesh white fused alumina
Sand blasting forms, and the surface roughness of roughened layer is Ra=6 μm；
Its insulation performance is：DC500V, resistance value 52M Ω；
Coating tensile strength properties are：Rm40MPa.
Embodiment 2：The thermal spraying insulating coating for preventing shaft current from generating, difference from example 1 is that：Insulation meter
Layer thickness is 0.25mm；The thickness of bond coating is 0.035mm；The surface roughness of roughened layer is Ra=10 μm；
Its insulation performance is：DC500V, resistance value 50M Ω；
Coating tensile strength properties are：Rm41.5MPa.
Embodiment 3：The thermal spraying insulating coating for preventing shaft current from generating, difference from example 1 is that：Insulation meter
Layer thickness is 0.22mm；The thickness of bond coating is 0.065mm；The surface roughness of roughened layer is Ra=8 μm；
Its insulation performance is：DC500V, resistance value 53M Ω；
Coating tensile strength properties are：Rm41MPa.
Embodiment 4：The preparation method of insulating coating described in embodiment 1, includes the following steps：
1. substrate pretreated：The reserved location of coating is cut in advance in motor shaft bearings at both ends file location, it is clear using acetone ultrasound
30mins is washed to remove oil stain；
2. roughing in surface：Using the white fused alumina sand of 24 mesh to progress surface sand-blasting process at the reserved location, roughened layer is formed,
Compressed air pressure is 0.6MPa, and processing rear surface roughness is made to reach Ra=6 μm, and when spraying sprays motor shaft at the end at position
Portion's clamp spring groove location is protected with fixture；
Compressed air uses when being blasting treatment.The compressed air push of sand grains accelerates directive base material, forms required rough surface.
Compressed air pressure size has relationship with sandblasting rear substrate surface roughness.
3. plasma spraying：Use power for the plasma spraying equipment of 80KW, using Ni5Al powder as bond coating material
Material, it is the bond coating that thickness is 0.05mm that spraying, which forms thickness, is then sprayed by material of AT3 powder on the bond coating
Apply the insulating surfaces layer for forming that thickness is 0.20mm, wherein when preparing bond coating, spray power 25kW prepares insulation surface layer
When, the temperature of spray power 45kW, motor shaft bearings at both ends shelves are controlled using air-cooled and spraying rate, to mitigate process
Influence of the thermal stress to coating；
4. pore closure：Infiltration sealing of hole is carried out to insulating coating using epoxy resin coating sealing reagent；
5. being ground：Insulating coating is ground to by finished size using the skive of thin three kinds of granularities in thick.
Embodiment 5：The preparation method of insulating coating described in embodiment 2, includes the following steps：
1. substrate pretreated：The reserved location of coating is cut in advance in motor shaft bearings at both ends file location, it is clear using acetone ultrasound
30mins is washed to remove oil stain；
2. roughing in surface：Using the white fused alumina sand of 24 mesh to progress surface sand-blasting process at the reserved location, roughened layer is formed,
Compressed air pressure is 0.6MPa, and processing rear surface roughness is made to reach Ra=10 μm, and when spraying sprays motor shaft at the end at position
Portion's clamp spring groove location is protected with fixture；
Compressed air uses when being blasting treatment.The compressed air push of sand grains accelerates directive base material, forms required rough surface.
Compressed air pressure size has relationship with sandblasting rear substrate surface roughness.
3. plasma spraying：Use power for the plasma spraying equipment of 80KW, using Ni5Al powder as bond coating material
Material, it is the bond coating that thickness is 0.035mm that spraying, which forms thickness, then using AT3 powder as material on the bond coating
Spraying forms the insulating surfaces layer that thickness is 0.25mm, wherein when preparing bond coating, spray power 25kW prepares insulation meter
When layer, the temperature of spray power 45kW, motor shaft bearings at both ends shelves are controlled using air-cooled and spraying rate, to mitigate
Influence of the journey thermal stress to coating；
4. pore closure：Infiltration sealing of hole is carried out to insulating coating using epoxy resin coating sealing reagent；
5. being ground：Insulating coating is ground to by finished size using the skive of thin three kinds of granularities in thick.
Embodiment 6：The preparation method of insulating coating described in embodiment 3, includes the following steps：
1. substrate pretreated：The reserved location of coating is cut in advance in motor shaft bearings at both ends file location, it is clear using acetone ultrasound
30mins is washed to remove oil stain；
2. roughing in surface：Using the white fused alumina sand of 24 mesh to progress surface sand-blasting process at the reserved location, roughened layer is formed,
Compressed air pressure is 0.6MPa, and processing rear surface roughness is made to reach Ra=8 μm, and when spraying sprays motor shaft at the end at position
Portion's clamp spring groove location is protected with fixture；
Compressed air uses when being blasting treatment.The compressed air push of sand grains accelerates directive base material, forms required rough surface.
Compressed air pressure size has relationship with sandblasting rear substrate surface roughness.
3. plasma spraying：Use power for the plasma spraying equipment of 80KW, using Ni5Al powder as bond coating material
Material, it is the bond coating that thickness is 0.065mm that spraying, which forms thickness, then using AT3 powder as material on the bond coating
Spraying forms the insulating surfaces layer that thickness is 0.22mm, wherein when preparing bond coating, spray power 25kW prepares insulation meter
When layer, the temperature of spray power 45kW, motor shaft bearings at both ends shelves are controlled using air-cooled and spraying rate, to mitigate
Influence of the journey thermal stress to coating；
4. pore closure：Infiltration sealing of hole is carried out to insulating coating using epoxy resin coating sealing reagent；
5. being ground：Insulating coating is ground to by finished size using the skive of thin three kinds of granularities in thick.
Claims (10)
1. the thermal spraying insulating coating for preventing shaft current from generating, it is characterised in that：
From outward appearance to inner essence respectively include insulation surface layer, bond coating and roughened layer；
The insulation performance of the insulating coating is：DC500V, resistance value >=50M Ω；
Meanwhile the tensile strength properties of the insulating coating are：Rm≥40MPa.
2. the thermal spraying insulating coating according to claim 1 for preventing shaft current from generating, it is characterised in that：The roughened layer
It is formed through sandblasting by white fused alumina sand.
3. the thermal spraying insulating coating according to claim 2 for preventing shaft current from generating, it is characterised in that：The white fused alumina
The mesh number of sand is 24 mesh, and the surface roughness of the roughened layer is Ra=6 ~ 10 μm.
4. the thermal spraying insulating coating according to claim 1 for preventing shaft current from generating, it is characterised in that：The cohesive bottom
Layer is formed by Ni5Al powder sprays, and thickness is 0.035 ~ 0.065mm.
5. the thermal spraying insulating coating according to claim 1 for preventing shaft current from generating, it is characterised in that：The insulation meter
Layer is formed by AT3 powder sprays, and thickness is 0.20 ~ 0.25mm.
6. the thermal spraying insulating coating according to claim 1 for preventing shaft current from generating, it is characterised in that：The insulation meter
Further include having epoxy resin hole sealing agent in the hole of layer.
7. preventing the preparation method of the thermal spraying insulating coating of shaft current generation, which is characterized in that include the following steps：
1. substrate pretreated：The reserved location of coating is cut in advance in motor shaft bearings at both ends file location, it is super using organic solvent
Sound cleaning removal oil stain；
2. roughing in surface：Using white fused alumina sand to carrying out surface sand-blasting process at the reserved location, roughened layer is formed, processing is made
Rear surface roughness reaches Ra=6 ~ 10 μm；
3. plasma spraying：Using plasma spraying equipment, using Ni5Al powder as bond coating material, spraying forms thickness
Then the bond coating for being 0.035 ~ 0.065mm for thickness forms thickness on the bond coating using AT3 powder as material spraying
Degree is the insulating surfaces layer of 0.20 ~ 0.25mm；
4. pore closure：Infiltration sealing of hole is carried out to insulating coating using epoxy resin coating sealing reagent；
5. being ground：Insulating coating is ground to finished size.
8. the preparation method of the thermal spraying insulating coating according to claim 7 for preventing shaft current from generating, it is characterised in that：
Step 2. in, the end clamp spring groove location for spraying position when spraying to motor shaft is protected with fixture.
9. the preparation method of the thermal spraying insulating coating according to claim 7 for preventing shaft current from generating, it is characterised in that：
Step 3. in, use power for 80KW plasma spraying equipment prepares coatings, wherein when preparing bond coating, spray power is
25kW, when preparing insulation surface layer, spray power 45kW.
10. the preparation method of the thermal spraying insulating coating according to claim 7 for preventing shaft current from generating, feature exist
In：Step 3. in, the temperature of motor shaft bearings at both ends shelves is controlled using air-cooled and spraying rate, to mitigate process thermal stress
Influence to coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811043772.8A CN108754401A (en) | 2018-09-07 | 2018-09-07 | Prevent the thermal spraying insulating coating and preparation method thereof that shaft current generates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811043772.8A CN108754401A (en) | 2018-09-07 | 2018-09-07 | Prevent the thermal spraying insulating coating and preparation method thereof that shaft current generates |
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| Publication Number | Publication Date |
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| CN108754401A true CN108754401A (en) | 2018-11-06 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811043772.8A Withdrawn CN108754401A (en) | 2018-09-07 | 2018-09-07 | Prevent the thermal spraying insulating coating and preparation method thereof that shaft current generates |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881142A (en) * | 2019-04-16 | 2019-06-14 | 德清创智科技股份有限公司 | Suitable on weft accumulator around ceramic coating of creel and preparation method thereof |
| CN110273122A (en) * | 2019-07-16 | 2019-09-24 | 中国航发北京航空材料研究院 | The preparation method of the outer adjustment sheet long-life heat insulating coat of composite polyimide material |
| CN110885959A (en) * | 2019-12-11 | 2020-03-17 | 广东省新材料研究所 | Composite coating for thermonuclear fusion reactor magnet support part and preparation method thereof |
| CN112458394A (en) * | 2020-11-26 | 2021-03-09 | 安徽盈锐优材科技有限公司 | Thermal spraying ceramic insulating coating and preparation method thereof |
| CN112458453A (en) * | 2020-11-24 | 2021-03-09 | 安徽盈锐优材科技有限公司 | High-bonding-strength ceramic insulating coating and preparation method thereof |
| CN112553558A (en) * | 2020-11-20 | 2021-03-26 | 中机凯博表面技术江苏有限公司 | Preparation method of bearing surface insulating coating |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900543A (en) * | 2006-07-03 | 2007-01-24 | 藤长宽 | Use of spray process in motor regulating center bearing base inner surface |
| JP2008050669A (en) * | 2006-08-25 | 2008-03-06 | Nsk Ltd | Insulating rolling bearing for electrical corrosion prevention |
| CN101457791A (en) * | 2009-01-04 | 2009-06-17 | 瓦房店轴承集团有限责任公司 | Insulation method for precision bearing for motor product |
| CN103556099A (en) * | 2013-11-05 | 2014-02-05 | 刘保国 | Processing method of rolling bearing surface electric-insulation layer |
| CN103866224A (en) * | 2012-12-11 | 2014-06-18 | 核工业西南物理研究院 | Method for preparing insulation anti-adhesion coating by using plasma spray-coating technology |
| CN104789914A (en) * | 2015-03-05 | 2015-07-22 | 中国船舶重工集团公司第七二五研究所 | Preparation method for bearing inner-outer ring electrical insulation coating |
-
2018
- 2018-09-07 CN CN201811043772.8A patent/CN108754401A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900543A (en) * | 2006-07-03 | 2007-01-24 | 藤长宽 | Use of spray process in motor regulating center bearing base inner surface |
| JP2008050669A (en) * | 2006-08-25 | 2008-03-06 | Nsk Ltd | Insulating rolling bearing for electrical corrosion prevention |
| CN101457791A (en) * | 2009-01-04 | 2009-06-17 | 瓦房店轴承集团有限责任公司 | Insulation method for precision bearing for motor product |
| CN103866224A (en) * | 2012-12-11 | 2014-06-18 | 核工业西南物理研究院 | Method for preparing insulation anti-adhesion coating by using plasma spray-coating technology |
| CN103556099A (en) * | 2013-11-05 | 2014-02-05 | 刘保国 | Processing method of rolling bearing surface electric-insulation layer |
| CN104789914A (en) * | 2015-03-05 | 2015-07-22 | 中国船舶重工集团公司第七二五研究所 | Preparation method for bearing inner-outer ring electrical insulation coating |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881142A (en) * | 2019-04-16 | 2019-06-14 | 德清创智科技股份有限公司 | Suitable on weft accumulator around ceramic coating of creel and preparation method thereof |
| CN110273122A (en) * | 2019-07-16 | 2019-09-24 | 中国航发北京航空材料研究院 | The preparation method of the outer adjustment sheet long-life heat insulating coat of composite polyimide material |
| CN110273122B (en) * | 2019-07-16 | 2021-08-06 | 中国航发北京航空材料研究院 | Preparation method of long-life heat-insulation coating of polyimide composite material outer adjusting sheet |
| CN110885959A (en) * | 2019-12-11 | 2020-03-17 | 广东省新材料研究所 | Composite coating for thermonuclear fusion reactor magnet support part and preparation method thereof |
| CN112553558A (en) * | 2020-11-20 | 2021-03-26 | 中机凯博表面技术江苏有限公司 | Preparation method of bearing surface insulating coating |
| CN112458453A (en) * | 2020-11-24 | 2021-03-09 | 安徽盈锐优材科技有限公司 | High-bonding-strength ceramic insulating coating and preparation method thereof |
| CN112458453B (en) * | 2020-11-24 | 2023-09-15 | 安徽盈锐优材科技有限公司 | Ceramic insulating coating with high bonding strength and preparation method thereof |
| CN112458394A (en) * | 2020-11-26 | 2021-03-09 | 安徽盈锐优材科技有限公司 | Thermal spraying ceramic insulating coating and preparation method thereof |
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Application publication date: 20181106 |