CN111349929A - High-strength wear-resistant rotary blade for rotary cultivator and preparation method thereof - Google Patents
High-strength wear-resistant rotary blade for rotary cultivator and preparation method thereof Download PDFInfo
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- CN111349929A CN111349929A CN202010193467.8A CN202010193467A CN111349929A CN 111349929 A CN111349929 A CN 111349929A CN 202010193467 A CN202010193467 A CN 202010193467A CN 111349929 A CN111349929 A CN 111349929A
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- China
- Prior art keywords
- spring steel
- cladding layer
- cutter body
- fluorine
- rotary blade
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/10—Structural or functional features of the tools ; Theoretical aspects of the cutting action
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/12—Arrangement of the tools; Screening of the tools
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Soil Working Implements (AREA)
Abstract
The invention discloses a high-strength wear-resistant rotary blade for a rotary cultivator and a preparation method thereof, wherein the high-strength wear-resistant rotary blade comprises a spring steel blade body and a cladding layer attached to the surface of the spring steel blade body, and the cladding layer is obtained by mixing nickel-based self-fluxing alloy powder, silicon nitride powder and fluorine-containing additives; the nickel-based self-fluxing alloy powder in the cladding layer accounts for 90-95% by mass, the silicon nitride powder accounts for 2.25-2.375% by mass, and the balance is a fluorine-containing additive. The alloy cutter body has the advantages that the comprehensive mechanical property of the alloy cutter body is improved, the wear resistance is about 6 times that of the spring steel cutter body by matching with the cladding layer on the outer layer of the spring steel cutter body, the hardness is about 3 times that of the spring steel cutter body, and the alloy cutter body has excellent wear resistance and corrosion resistance.
Description
Technical Field
The invention relates to the field of metal surface treatment, in particular to a high-strength wear-resistant rotary blade for a rotary cultivator and a preparation method thereof.
Background
The rotary cultivator is a cultivator which is matched with a tractor to complete the operations of ploughing and harrowing, and is widely applied due to the characteristics of strong soil crushing capability, flat ground surface after ploughing and the like.
The rotary blade is a main wear part of the rotary cultivator, and under the general condition, the service life of the common rotary blade in the viscous soil is 20-35 hm2The service life of the material in sandy soil is only 3.3-5.5 hm2The blunt tillage parts can increase the traction resistance, increase the oil consumption, reduce the working efficiency and the working quality of the agricultural machinery and increase the working cost; and the replacement of the rotary blade is time-consuming and labor-consuming, and is not favorable for the time of farming, thereby prolonging the service life of the rotary blade, improving the working efficiency of agricultural machinery, and improving the yield of agricultural machinery equipment in ChinaThe quality and the technological level of the product meet the long-term urgent demands for the long-life wear-resisting rotary blade in China, and have important significance.
Disclosure of Invention
In order to solve the problems, the invention provides a high-strength wear-resistant rotary blade for a rotary cultivator and a preparation method thereof, and the high-strength wear-resistant rotary blade has excellent wear resistance.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high-strength wear-resistant rotary blade for a rotary cultivator comprises a spring steel blade body and a cladding layer attached to the surface of the spring steel blade head, wherein the cladding layer is prepared by mixing nickel-based self-fluxing alloy powder, silicon nitride powder and fluorine-containing additives.
Furthermore, the nickel-based self-fluxing alloy powder in the cladding layer accounts for 90-95% by mass, the silicon nitride powder accounts for 2.25-2.375% by mass, and the balance is fluorine-containing additives.
Further, the thickness of the cladding layer is 0.1-0.3 mm.
Further, the fluorine-containing additive is an acrylic additive containing a perfluoroalkyl group.
A preparation method of a high-strength wear-resistant rotary blade for a rotary cultivator comprises the following steps:
s1, grinding, polishing and deoiling the surface of the spring steel cutter body, and washing with deionized water;
s2, performing double-sided laser beam irradiation treatment on the spring steel cutter body obtained in the step S1, so that the self wear resistance of the spring steel cutter body is improved, and meanwhile, the adhesive force of a subsequent cladding layer can be improved;
and S3, placing the nickel-based self-fluxing alloy powder, the silicon nitride powder and the fluorine-containing additive in a ball mill according to the mass percentage, performing ball milling and mixing uniformly, drying, and forming a cladding layer on the surface of the spring steel blade obtained in the step S2 by laser cladding in a coaxial powder feeding mode.
Compared with the prior art, the invention has the beneficial effects that: the alloy cutter body has the advantages that the comprehensive mechanical property of the alloy cutter body is improved, the wear resistance is about 6 times that of the spring steel cutter body by matching with the cladding layer on the outer layer of the spring steel cutter body, the hardness is about 3 times that of the spring steel cutter body, and the alloy cutter body has excellent wear resistance and corrosion resistance.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
In the following examples, the fluorine-containing additive was a fluorine-containing surface modifier TG-001, and the nickel-based self-fluxing alloy powder was designated by the reference number G112.
Example 1
A high-strength wear-resistant rotary blade for a rotary cultivator is prepared by the following steps:
s1, grinding, polishing and deoiling the surface of the 60Si2Mn spring steel cutter body, and washing with deionized water;
s2, performing double-sided laser beam irradiation treatment on the spring steel cutter body obtained in the step S1, wherein the power is 1900w, the scanning speed is 2.5m/min, and the defocusing amount is 20 mm;
s3, weighing the following components in percentage by mass: 90% of nickel-based self-fluxing alloy powder, 2.25% of silicon nitride powder and the balance of fluorine-containing additives;
putting the weighed nickel-based self-fluxing alloy powder, silicon nitride powder and fluorine-containing additive into a ball mill, ball-milling and uniformly mixing, drying, and forming a cladding layer with the thickness of 0.2mm on the surface of the spring steel blade obtained in the step S2 by laser cladding in a vacuum box in a coaxial powder feeding mode, wherein the cladding power is 1300W, the diameter of a light spot is 4mm, the powder feeding mode is four-way coaxial powder feeding, and the powder feeding amount is 7 g/min.
Example 2
A high-strength wear-resistant rotary blade for a rotary cultivator is prepared by the following steps:
s1, grinding, polishing and deoiling the surface of the 60Si2Mn spring steel cutter body, and washing with deionized water;
s2, performing double-sided laser beam irradiation treatment on the spring steel cutter body obtained in the step S1, wherein the power is 1900w, the scanning speed is 2.5m/min, and the defocusing amount is 20 mm;
s3, weighing the following components in percentage by mass: the nickel-based self-fluxing alloy powder accounts for 95 percent, the silicon nitride powder accounts for 2.375 percent, and the balance is fluorine-containing additives;
putting the weighed nickel-based self-fluxing alloy powder, silicon nitride powder and fluorine-containing additive into a ball mill, ball-milling and uniformly mixing, drying, and forming a cladding layer with the thickness of 0.2mm on the surface of the spring steel blade obtained in the step S2 by laser cladding in a vacuum box in a coaxial powder feeding mode, wherein the cladding power is 1300W, the diameter of a light spot is 4mm, the powder feeding mode is four-way coaxial powder feeding, and the powder feeding amount is 7 g/min.
Example 3
A high-strength wear-resistant rotary blade for a rotary cultivator is prepared by the following steps:
s1, grinding, polishing and deoiling the surface of the 60Si2Mn spring steel cutter body, and washing with deionized water;
s2, performing double-sided laser beam irradiation treatment on the spring steel cutter body obtained in the step S1, wherein the power is 1900w, the scanning speed is 2.5m/min, and the defocusing amount is 20 mm;
s3, weighing the following components in percentage by mass: the nickel-based self-fluxing alloy powder accounts for 92.5 percent, the silicon nitride powder accounts for 2.311 percent, and the balance is fluorine-containing additives;
putting the weighed nickel-based self-fluxing alloy powder, silicon nitride powder and fluorine-containing additive into a ball mill, ball-milling and uniformly mixing, drying, and forming a cladding layer with the thickness of 0.2mm on the surface of the spring steel blade obtained in the step S2 by laser cladding in a vacuum box in a coaxial powder feeding mode, wherein the cladding power is 1300W, the diameter of a light spot is 4mm, the powder feeding mode is four-way coaxial powder feeding, and the powder feeding amount is 7 g/min.
Hardness test
Placing a sample on an HR150-A type Rockwell hardness machine to test the Rockwell hardness of the surface of a cladding layer, firstly placing the lower surface of the polished sample on a platform, then rotating a turntable, stopping loading when a pointer on a small dial is red, withdrawing the load after the pointer is stable, then reading, taking more than three test points of each sample, and taking the average value as the hardness value of the sample.
Abrasion test
Abrasion tests were performed using an ML-100 abrasive abrasion tester. The load is 70N, and the walking time is 3 min. The test piece was fixed with a special jig, and the mass loss before and after abrasion was weighed with an electronic balance having a precision of 1 mg.
The test results show that the rotary blade obtained in the examples 1 to 3 has the wear resistance 5.9 times, 6.3 times and 6.8 times that of the spring steel blade body of 60Si2Mn, and the hardness 3.1 times, 3.4 times and 4 times that of the spring steel blade body of 60Si2 Mn.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (5)
1. The utility model provides a rotary cultivator is with wear-resisting rotary blade that excels in, includes spring steel cutter body and the cladding layer of attached to spring steel cutter head surface, its characterized in that: the cladding layer is prepared by mixing nickel-based self-fluxing alloy powder, silicon nitride powder and fluorine-containing additives.
2. A high strength wear resistant rotary blade for rotary cultivator as claimed in claim 1, wherein: the nickel-based self-fluxing alloy powder in the cladding layer accounts for 90-95% by mass, the silicon nitride powder accounts for 2.25-2.375% by mass, and the balance is a fluorine-containing additive.
3. A high strength wear resistant rotary blade for rotary cultivator as claimed in claim 1, wherein: the thickness of the cladding layer is 0.1-0.3 mm.
4. A high strength wear resistant rotary blade for rotary cultivator as claimed in claim 1, wherein: the fluorine-containing additive is an acrylic additive containing perfluoroalkyl.
5. A method for preparing a high-strength wear-resistant rotary blade for a rotary cultivator according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:
s1, grinding, polishing and deoiling the surface of the spring steel cutter body, and washing with deionized water;
s2, performing double-sided laser beam irradiation treatment on the spring steel cutter body obtained in the step S1;
and S3, placing the nickel-based self-fluxing alloy powder, the silicon nitride powder and the fluorine-containing additive in a ball mill according to the mass percentage, performing ball milling and mixing uniformly, drying, and forming a cladding layer on the surface of the spring steel blade obtained in the step S2 by laser cladding in a coaxial powder feeding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010193467.8A CN111349929A (en) | 2020-03-18 | 2020-03-18 | High-strength wear-resistant rotary blade for rotary cultivator and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010193467.8A CN111349929A (en) | 2020-03-18 | 2020-03-18 | High-strength wear-resistant rotary blade for rotary cultivator and preparation method thereof |
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| CN111349929A true CN111349929A (en) | 2020-06-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114481119A (en) * | 2021-12-24 | 2022-05-13 | 中国农业机械化科学研究院集团有限公司 | Wear-resistant rotary blade and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215484A (en) * | 2012-12-19 | 2013-07-24 | 江苏新亚特钢锻造有限公司 | Silicide particle enhanced laser cladding nickel base alloy powder and preparation method thereof |
| CN108103502A (en) * | 2018-01-29 | 2018-06-01 | 阳江市五金刀剪产业技术研究院 | A kind of laser cladding powder for martensitic stain less steel |
| CN110565042A (en) * | 2019-07-09 | 2019-12-13 | 扬州安泰威合金硬面科技有限公司 | Method for preparing nickel-based alloy powder coating by applying laser cladding technology |
-
2020
- 2020-03-18 CN CN202010193467.8A patent/CN111349929A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215484A (en) * | 2012-12-19 | 2013-07-24 | 江苏新亚特钢锻造有限公司 | Silicide particle enhanced laser cladding nickel base alloy powder and preparation method thereof |
| CN108103502A (en) * | 2018-01-29 | 2018-06-01 | 阳江市五金刀剪产业技术研究院 | A kind of laser cladding powder for martensitic stain less steel |
| CN110565042A (en) * | 2019-07-09 | 2019-12-13 | 扬州安泰威合金硬面科技有限公司 | Method for preparing nickel-based alloy powder coating by applying laser cladding technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114481119A (en) * | 2021-12-24 | 2022-05-13 | 中国农业机械化科学研究院集团有限公司 | Wear-resistant rotary blade and manufacturing method thereof |
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