CN114032540A - Propeller surface strength reinforcing process based on laser cladding - Google Patents
Propeller surface strength reinforcing process based on laser cladding Download PDFInfo
- Publication number
- CN114032540A CN114032540A CN202111263772.0A CN202111263772A CN114032540A CN 114032540 A CN114032540 A CN 114032540A CN 202111263772 A CN202111263772 A CN 202111263772A CN 114032540 A CN114032540 A CN 114032540A
- Authority
- CN
- China
- Prior art keywords
- propeller
- spraying
- cladding
- laser
- adhesive
- 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.)
- Pending
Links
- 238000004372 laser cladding Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000008569 process Effects 0.000 title claims abstract description 11
- 230000003014 reinforcing effect Effects 0.000 title claims description 5
- 238000005507 spraying Methods 0.000 claims abstract description 29
- 238000005253 cladding Methods 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 13
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 5
- 230000002708 enhancing effect Effects 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims abstract description 4
- 230000008018 melting Effects 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000012216 screening Methods 0.000 claims abstract description 3
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000000956 alloy Substances 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 230000007547 defect Effects 0.000 description 5
- 238000005266 casting Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010039509 Scab Diseases 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000003466 welding Methods 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
- B22F2007/068—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts repairing articles
Abstract
The invention provides a propeller surface strength enhancing process based on laser cladding, which comprises the following steps of; removing impurities and stains on the surface of the outer propeller blade of the propeller; mixing the pre-alloyed powder and the adhesive by a stirring device to prepare a cladding coating, wherein the ratio of the pre-alloyed powder to the adhesive is 8: 1; clamping the propeller main shaft by using a three-jaw clamp, and arranging the propeller main shaft on a rotary melting type coating and spraying platform; uniformly spraying the cladding coating on the surface of the propeller by using a spraying gun; the laser head is arranged behind the spray gun to directly clad the part of the surface of the propeller which is sprayed: after cladding, the propeller is cooled and cleaned, and an electron microscope is used for screening, the spraying uniformity of the propeller is ensured by modulating the prefabricated alloy powder and the adhesive, and the spraying gun and the laser head are arranged on the same mechanical arm to ensure that cladding can be directly completed after spraying, so that the uniformity of the spraying is ensured.
Description
Technical Field
The invention belongs to the technical field of laser cladding, and particularly relates to a propeller surface strength enhancing process based on laser cladding.
Background
The propeller is generally manufactured by casting and integrally forming, but after the propeller is cast and demoulded, the surface of the propeller randomly generates various defects of different shapes, such as: the defects of air holes, shrinkage holes, slag holes, hot cracks, cold cracks, scabs and the like can cause the strength of the propeller to be damaged, the long-time work of the propeller cannot be guaranteed, and the cast propeller needs to be reinforced by secondary processing.
The existing casting surface defect repairing technology generally adopts welding repair, grinding and planing, stopping and the like, but the technologies are used for repairing defects and cannot completely reinforce the finished casting.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a propeller surface strength reinforcing process based on laser cladding, which comprises the following steps;
a. removing impurities and stains on the surface of the outer propeller blade of the propeller;
b. mixing the pre-alloyed powder and the adhesive by a stirring device to prepare a cladding coating, wherein the ratio of the pre-alloyed powder to the adhesive is 8: 1;
c. clamping the propeller main shaft by using a three-jaw clamp, and arranging the propeller main shaft on a rotary melting type coating and spraying platform;
d. uniformly spraying the cladding coating on the surface of the propeller by using a spraying gun;
e. the laser head is arranged behind the spray gun to directly clad the part of the surface of the propeller which is sprayed:
f. and after cladding, cooling and cleaning the propeller, and screening the upper electron microscope.
Furthermore, a constant temperature device is arranged in the stirring device, and the constant temperature device is started when the stirring device is started.
Further, the spraying diameter of the spraying gun is equal to the heating diameter of the laser head.
Furthermore, the spraying gun and the laser head are arranged on the same three-phase motor arm.
Has the advantages that:
the spraying uniformity is ensured by modulating the pre-fabricated alloy powder and the adhesive, and the spraying gun and the laser head are arranged on the same mechanical arm to ensure that the coating can be directly finished after the spraying, so that the uniformity is ensured.
Detailed Description
In order to enhance the understanding of the present invention, the present invention will be further described with reference to the following examples, which are only for the purpose of illustrating the present invention and are not to be construed as limiting the scope of the present invention.
The implementation example is as follows:
a propeller surface strength reinforcing process based on laser cladding comprises the following steps;
a. removing impurities and stains on the surface of the outer propeller blade of the propeller;
b. mixing the pre-alloyed powder and the adhesive by a stirring device to prepare a cladding coating, wherein the ratio of the pre-alloyed powder to the adhesive is 8: 1;
c. clamping the propeller main shaft by using a three-jaw clamp, and arranging the propeller main shaft on a rotary melting type coating and spraying platform;
d. uniformly spraying the cladding coating on the surface of the propeller by using a spraying gun;
e. the laser head is arranged behind the spray gun to directly clad the part of the surface of the propeller which is sprayed:
f. and after cladding, cooling and cleaning the propeller, and carrying out an electron microscope.
Pretreating, cleaning the propeller, and removing oil on the surface of the propeller or removing oil by using an organic cleaning agent; polishing with coarse sand to remove rust on the surface of the substrate and roughen the surface of the propeller so as to facilitate cladding coating and laser cladding layer adhesion; determining that the prefabricated alloy powder material on the surface of the propeller is carbide composite powder according to the actual casting completion condition of the surface of the propeller; selecting a clamp, a mechanical turntable and a moving device; the carbide composite powder and the adhesive are proportioned to ensure smooth spraying of the cladding coating; the laser power, the scanning speed, the spot diameter and the spraying amount are correctly selected to ensure that the optical power density in the laser spot is uniformly distributed, so that the shape and the size of the spraying diameter of a spraying opening are matched, the relative relation between the spraying amount and the matrix and the laser beam is strict, and when the power density is 61-93W/cm2 generally, the cladding process is completed within 0.5-1 s; and (5) subsequent processing, namely, machining according to the requirements of customers to meet the precision requirement and checking the surface treatment quality.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A propeller surface strength reinforcing process based on laser cladding is characterized by comprising the following steps;
a. removing impurities and stains on the surface of the outer propeller blade of the propeller;
b. mixing the pre-alloyed powder and the adhesive by a stirring device to prepare a cladding coating, wherein the ratio of the pre-alloyed powder to the adhesive is 8: 1;
c. clamping the propeller main shaft by using a three-jaw clamp, and arranging the propeller main shaft on a rotary melting type coating and spraying platform;
d. uniformly spraying the cladding coating on the surface of the propeller by using a spraying gun;
e. the laser head is arranged behind the spray gun to directly clad the part of the surface of the propeller which is sprayed:
f. and after cladding, cooling and cleaning the propeller, and screening the upper electron microscope.
2. The laser cladding-based propeller surface strength enhancing process as claimed in claim 1, wherein a constant temperature device is arranged in the stirring device, and the constant temperature device is started when the stirring device is started.
3. The process of claim 1, wherein the spraying diameter of the spraying gun is equal to the heating diameter of the laser head.
4. The laser cladding-based propeller surface strength enhancing process according to claim 1, wherein the spray gun and the laser head are arranged on the same three-phase motor arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111263772.0A CN114032540A (en) | 2021-10-27 | 2021-10-27 | Propeller surface strength reinforcing process based on laser cladding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111263772.0A CN114032540A (en) | 2021-10-27 | 2021-10-27 | Propeller surface strength reinforcing process based on laser cladding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114032540A true CN114032540A (en) | 2022-02-11 |
Family
ID=80142257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111263772.0A Pending CN114032540A (en) | 2021-10-27 | 2021-10-27 | Propeller surface strength reinforcing process based on laser cladding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114032540A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369246A (en) * | 2015-11-02 | 2016-03-02 | 鲁一军 | Propeller surface strengthening process |
| CN105779925A (en) * | 2016-03-07 | 2016-07-20 | 福建工程学院 | Supersonic flame spraying and powder prearranging method for laser cladding |
| CN106757011A (en) * | 2017-01-17 | 2017-05-31 | 燕山大学 | A kind of laser melting coating reproducing method of worm screw |
| CN111197165A (en) * | 2018-11-17 | 2020-05-26 | 湖北文盛模具制品有限公司 | Laser cladding repair mold process |
| CN112981389A (en) * | 2019-12-14 | 2021-06-18 | 丹阳宏图激光科技有限公司 | Laser repair method for propeller shaft |
-
2021
- 2021-10-27 CN CN202111263772.0A patent/CN114032540A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369246A (en) * | 2015-11-02 | 2016-03-02 | 鲁一军 | Propeller surface strengthening process |
| CN105779925A (en) * | 2016-03-07 | 2016-07-20 | 福建工程学院 | Supersonic flame spraying and powder prearranging method for laser cladding |
| CN106757011A (en) * | 2017-01-17 | 2017-05-31 | 燕山大学 | A kind of laser melting coating reproducing method of worm screw |
| CN111197165A (en) * | 2018-11-17 | 2020-05-26 | 湖北文盛模具制品有限公司 | Laser cladding repair mold process |
| CN112981389A (en) * | 2019-12-14 | 2021-06-18 | 丹阳宏图激光科技有限公司 | Laser repair method for propeller shaft |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220211 |