CN108239771A - A kind of spraying process of the metal protection coating of impeller and sealing ring - Google Patents
A kind of spraying process of the metal protection coating of impeller and sealing ring Download PDFInfo
- Publication number
- CN108239771A CN108239771A CN201711487725.8A CN201711487725A CN108239771A CN 108239771 A CN108239771 A CN 108239771A CN 201711487725 A CN201711487725 A CN 201711487725A CN 108239771 A CN108239771 A CN 108239771A
- Authority
- CN
- China
- Prior art keywords
- workpiece
- impeller
- sealing ring
- coating
- alloy powders
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2294—Rotors specially for centrifugal pumps with special measures for protection, e.g. against abrasion
Abstract
The present invention provides a kind of spraying process of the metal protection coating of impeller and sealing ring, is related to coating spraying field, includes the following steps：Surface treatment：Inner wall surface cleaning is carried out to cleaning agent processing workpiece；Workpiece preheats：Workpiece loading heat-treatment furnace is preheated so that solidifying priming paint and workpiece preheating；It dusts in advance：Autolyzed metal alloy powders are sprayed to impeller port ring outer surface and casing ring inner surface；Heating：It is heated up using oxy-acetylene flame or electric heating sheets mode of heating to workpiece；Spray fusing：1000~1300 DEG C are again heated to autolyzed metal alloy powders coating；Cooling：Workpiece is cooled down, it is ensured that cooling velocity is less than 100 DEG C/h；The present invention is for the protection of impeller and sealing ring, it selects outside the material of anti scuffing, impeller blade entrance while, outlet while, impeller port ring outer surface and casing ring inner surface surfacing metal alloy powders (Ni60), flow passage part local case hardness easy to wear is further improved, is prolonged the service life.
Description
Technical field
The present invention relates to coating spraying fields, and in particular to a kind of spraying work of the metal protection coating of impeller and sealing ring
Skill.
Background technology
A kind of important form of the double entry pump as centrifugal pump, because it has the characteristics that lift is high, flow is big, in engineering
To extensive use.The impeller of this pump-type actually includes components, pump case and the impellers such as pump case and impeller usually because required work(
Can difference and spray different protective coatings, since impeller and sealing ring are often contacted with various liquid substances, particularly exist
The basin of Huanghe water is conveyed, for the bigger occasion of silt content, the wear rate of impeller and sealing ring is very high, therefore, impeller
And the anti scuffing of sealing ring is improved.
Invention content
In view of the deficiencies of the prior art, the present invention provides the spraying works of a kind of impeller and the metal protection coating of sealing ring
Skill so that anti scuffing gets a promotion.
In order to achieve the above object, the present invention is achieved by the following technical programs：A kind of metal of impeller and sealing ring
The spraying process of protective coating, includes the following steps：
S1. it is surface-treated：Inner wall surface cleaning is carried out to cleaning agent processing workpiece, removes surface contaminant, and workpiece is applied
Priming；
S2. workpiece preheats：Workpiece loading heat-treatment furnace is preheated, is placed in the baking oven that temperature is 275 DEG C~300 DEG C
Middle 25min~45min so that solidifying priming paint and workpiece preheating；
S3. it dusts in advance：Autolyzed metal alloy powders are sprayed to impeller port ring outer surface and casing ring inner surface；
S4. it heats up：It is heated up using oxy-acetylene flame or electric heating sheets mode of heating to workpiece, heating process is constantly used
Thermo detector measures the temperature of workpiece, it is ensured that heating rate is less than 150 DEG C/h；
S5. spray fusing：1000~1300 DEG C are again heated to autolyzed metal alloy powders coating, makes particles fuse, slag making
Coating surface is floated to, the boride of generation and silicide disperse are in the coating；
S6. it cools down：Workpiece is cooled down, cooling procedure constantly measures the temperature of workpiece with thermo detector, it is ensured that cooling speed
Degree is less than 100 DEG C/h.
Preferably, the cleaning agent in the S1 is ethyl alcohol or acetone soln.
Preferably, same parts inside the workpiece in the S2 are packed into same heat-treatment furnace processing, impeller and close
Seal ring is packed into different heat-treatment furnaces and is preheated.
Preferably, the autolyzed metal alloy powders in the S3 include Ni60.
The present invention provides a kind of impeller and the spraying process of the metal protection coating of sealing ring, for impeller and sealing ring
Protection, select outside the material of anti scuffing, when impeller blade entrance is in, outlet, impeller port ring outer surface and casing ring
Inner surface surfacing metal alloy powders (Ni60) further improve flow passage part local case hardness easy to wear, extend and use the longevity
Life.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention,
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
All other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Embodiment 1：
A kind of spraying process of the metal protection coating of impeller and sealing ring, includes the following steps：
S1. it is surface-treated：Inner wall surface cleaning is carried out to cleaning agent processing workpiece, removes surface contaminant, and workpiece is applied
Priming；
S2. workpiece preheats：Workpiece loading heat-treatment furnace is preheated, is placed in 25min in the baking oven that temperature is 275 DEG C,
So that solidifying priming paint and workpiece preheating；
S3. it dusts in advance：Autolyzed metal alloy powders are sprayed to impeller port ring outer surface and casing ring inner surface；
S4. it heats up：It is heated up using oxy-acetylene flame mode of heating to workpiece, heating process is constantly measured with thermo detector
The temperature of workpiece, it is ensured that heating rate is less than 150 DEG C/h；
S5. spray fusing：1000 are again heated to autolyzed metal alloy powders coating, makes particles fuse, slag making floats to painting
Layer surface, the boride of generation and silicide disperse are in the coating；
S6. it cools down：Workpiece is cooled down, cooling procedure constantly measures the temperature of workpiece with thermo detector, it is ensured that cooling speed
Degree is less than 100 DEG C/h.
Preferably, the cleaning agent in the S1 is ethyl alcohol or acetone soln.
Preferably, same parts inside the workpiece in the S2 are packed into same heat-treatment furnace processing, impeller and close
Seal ring is packed into different heat-treatment furnaces and is preheated.
Preferably, the autolyzed metal alloy powders in the S3 include Ni60.
Embodiment：
A kind of spraying process of the metal protection coating of impeller and sealing ring, includes the following steps：
S1. it is surface-treated：Inner wall surface cleaning is carried out to cleaning agent processing workpiece, removes surface contaminant, and workpiece is applied
Priming；
S2. workpiece preheats：Workpiece loading heat-treatment furnace is preheated, is placed in 45min in the baking oven that temperature is 300 DEG C,
So that solidifying priming paint and workpiece preheating；
S3. it dusts in advance：Autolyzed metal alloy powders are sprayed to impeller port ring outer surface and casing ring inner surface；
S4. it heats up：It is heated up using electric heating sheets mode of heating to workpiece, heating process constantly measures work with thermo detector
The temperature of part, it is ensured that heating rate is less than 150 DEG C/h；
S5. spray fusing：1300 DEG C are again heated to autolyzed metal alloy powders coating, makes particles fuse, slag making floats to
Coating surface, the boride of generation and silicide disperse are in the coating；
S6. it cools down：Workpiece is cooled down, cooling procedure constantly measures the temperature of workpiece with thermo detector, it is ensured that cooling speed
Degree is less than 100 DEG C/h.
Preferably, the cleaning agent in the S1 is ethyl alcohol or acetone soln.
Preferably, same parts inside the workpiece in the S2 are packed into same heat-treatment furnace processing, impeller and close
Seal ring is packed into different heat-treatment furnaces and is preheated.
Preferably, the autolyzed metal alloy powders in the S3 include Ni60.
The present invention provides a kind of impeller and the spraying process of the metal protection coating of sealing ring, for impeller and sealing ring
Protection, select outside the material of anti scuffing, when impeller blade entrance is in, outlet, impeller port ring outer surface and casing ring
Inner surface surfacing metal alloy powders (Ni60) further improve flow passage part local case hardness easy to wear, extend and use the longevity
Life.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each implementation
Technical solution recorded in example modifies or carries out equivalent replacement to which part technical characteristic；And these modification or
It replaces, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution.
Claims (4)
1. the spraying process of the metal protection coating of a kind of impeller and sealing ring, which is characterized in that include the following steps：
S1. it is surface-treated：Inner wall surface cleaning is carried out to cleaning agent processing workpiece, removes surface contaminant, and bottom is coated to workpiece
Paint；
S2. workpiece preheats：Workpiece loading heat-treatment furnace is preheated, is placed in the baking oven that temperature is 275 DEG C~300 DEG C
25min~45min so that solidifying priming paint and workpiece preheating；
S3. it dusts in advance：Autolyzed metal alloy powders are sprayed to impeller port ring outer surface and casing ring inner surface；
S4. it heats up：It is heated up using oxy-acetylene flame or electric heating sheets mode of heating to workpiece, heating process constantly uses thermometric
Meter measures the temperature of workpiece, it is ensured that heating rate is less than 150 DEG C/h；
S5. spray fusing：1000~1300 DEG C are again heated to autolyzed metal alloy powders coating, makes particles fuse, slag making is floated
To coating surface, the boride of generation and silicide disperse are in the coating；
S6. it cools down：Workpiece is cooled down, cooling procedure constantly measures the temperature of workpiece with thermo detector, it is ensured that cooling velocity is small
In 100 DEG C/h.
2. the spraying process of the metal protection coating of impeller as described in claim 1 and sealing ring, which is characterized in that the S1
In cleaning agent be ethyl alcohol or acetone soln.
3. the spraying process of the metal protection coating of impeller as described in claim 1 and sealing ring, which is characterized in that the S2
In workpiece inside same parts be packed into the processing of same heat-treatment furnace, impeller and sealing ring are packed into different heat-treatment furnaces
It is preheated.
4. the spraying process of the metal protection coating of impeller as described in claim 1 and sealing ring, which is characterized in that the S3
In autolyzed metal alloy powders include Ni60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487725.8A CN108239771B (en) | 2017-12-29 | 2017-12-29 | Spraying process of metal protective coating of impeller and sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487725.8A CN108239771B (en) | 2017-12-29 | 2017-12-29 | Spraying process of metal protective coating of impeller and sealing ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108239771A true CN108239771A (en) | 2018-07-03 |
| CN108239771B CN108239771B (en) | 2020-12-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711487725.8A Active CN108239771B (en) | 2017-12-29 | 2017-12-29 | Spraying process of metal protective coating of impeller and sealing ring |
Country Status (1)
| Country | Link |
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| CN (1) | CN108239771B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016632A (en) * | 2019-03-25 | 2019-07-16 | 安徽开发矿业有限公司 | A kind of diaphragm pump flow passage part Wear-resistant Treatment technique |
| CN115213073A (en) * | 2022-06-13 | 2022-10-21 | 中核核电运行管理有限公司 | Novel erosion retarding method for inner wall of small-size valve of nuclear power plant |
| CN115261768A (en) * | 2022-08-25 | 2022-11-01 | 甘肃伯骊江3D打印科技有限公司 | Supersonic spraying process for pump body |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016632A (en) * | 2019-03-25 | 2019-07-16 | 安徽开发矿业有限公司 | A kind of diaphragm pump flow passage part Wear-resistant Treatment technique |
| CN115213073A (en) * | 2022-06-13 | 2022-10-21 | 中核核电运行管理有限公司 | Novel erosion retarding method for inner wall of small-size valve of nuclear power plant |
| CN115261768A (en) * | 2022-08-25 | 2022-11-01 | 甘肃伯骊江3D打印科技有限公司 | Supersonic spraying process for pump body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108239771B (en) | 2020-12-11 |
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