CN114351025A - High-strength high-carbon low-alloy saw blade material for mowing and preparation method of saw blade - Google Patents
High-strength high-carbon low-alloy saw blade material for mowing and preparation method of saw blade Download PDFInfo
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- CN114351025A CN114351025A CN202111637741.7A CN202111637741A CN114351025A CN 114351025 A CN114351025 A CN 114351025A CN 202111637741 A CN202111637741 A CN 202111637741A CN 114351025 A CN114351025 A CN 114351025A
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- saw blade
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- base body
- circular saw
- mowing
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 title claims abstract description 27
- 239000000956 alloy Substances 0.000 title claims abstract description 22
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 60
- 238000005520 cutting process Methods 0.000 claims abstract description 35
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 21
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 20
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 10
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 10
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 10
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 238000004080 punching Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 238000010791 quenching Methods 0.000 claims description 10
- 230000000171 quenching effect Effects 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 244000025254 Cannabis sativa Species 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000012459 cleaning agent Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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Abstract
The utility model discloses a high-strength high-carbon low-alloy saw blade material for mowing, which comprises the following components: the cutting tool comprises a base body and a cutting edge, wherein the base body consists of a base body a, a base body b and a base body C, the component parts of the base body a are C, Si, Mn, P, Cr, Mo, Ni and Al, and the base body a consists of the following components in percentage by mass: c: 70-78%, Si: 20-28%, Mn: 0.05-0.09%, P: 0.004-0.008% of Cr: 0.12-0.16%, Mo: 0.005-0.009%, Ni: 0.03-0.06%, Al: 0.04-0.07 percent of Fe, the balance of Fe, the component of the b matrix is C, Si, Cr, Ti, Zr and Mo, and the b matrix comprises the following components in percentage by mass: c: 50-71%, Si: 27-48%, Cr: 0.22-0.32%, Ti: 0.15 to 0.31%, Zr: 0.003-0.008% and Mo: 0.06-0.08%, and the balance of Fe. The utility model can effectively improve the structural strength of the saw blade for mowing and improve the safety of using the blade of the saw blade for mowing.
Description
Technical Field
The utility model belongs to the technical field of diamond saw blades, and particularly relates to a high-strength high-carbon low-alloy saw blade material for mowing and a preparation method of a saw blade.
Background
The grass cutting blade is a mowing tool which is arranged on the mower and used for cutting grass and trees in a rotating mode, the center of the grass cutting blade is provided with a circular saw blade with a mounting hole, and grasslands, flower beds, lawns and the like are cut in a rotating mode at a high speed. But the intensity of the alloy saw bit for mowing on the current market is lower, the material attribute is not good, and meanwhile, in the process of long-term high-speed rotary cutting, the cutting edge of the diamond saw bit is easy to damage, the mowing piece is easy to break integrally, and potential safety hazards exist in the surrounding working environment.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide a high-strength high-carbon low-alloy saw blade material for mowing and a preparation method of the saw blade, so that the structural strength of a diamond saw blade for mowing is improved, and the stability and no fracture of a blade are ensured.
In order to achieve the above object, the present invention adopts the following technical solutions:
a high-strength high-carbon low-alloy saw blade material for mowing, comprising: the cutting tool comprises a base body and a cutting edge, wherein the base body consists of a base body a, a base body b and a base body C, the component parts of the base body a are C, Si, Mn, P, Cr, Mo, Ni and Al, and the base body a consists of the following components in percentage by mass: c: 70-78%, Si: 20-28%, Mn: 0.05-0.09%, P: 0.004-0.008% of Cr: 0.12-0.16%, Mo: 0.005-0.009%, Ni: 0.03-0.06%, Al: 0.04-0.07 percent of Fe, and the balance of Fe, wherein the component of the matrix b is C, Si, Cr, Ti, Zr and Mo, and the matrix b comprises the following components in percentage by mass: c: 50-71%, Si: 27-48%, Cr: 0.22-0.32%, Ti: 0.15 to 0.31%, Zr: 0.003-0.008% and Mo: 0.06-0.08%, and the balance of Fe.
Preferably, the proportion of the constituent parts of the c matrix is the same as the proportion of the constituent parts of the a matrix.
Still preferably, the thickness ratio of the a matrix, the b matrix and the c matrix is a: b: c = 2: 1: 2.
more preferably, the cutting edges are uniformly arranged at the outer ring position of the b base body.
Further preferably, the a substrate and the c substrate are covered with a high-hardness coating and a wear-resistant coating, and the b substrate is covered with a composite coating.
A preparation method of a high-strength high-carbon low-alloy saw blade material for mowing is characterized by comprising the following steps:
s1: after quenching and annealing processes are carried out on the matrix a and the matrix c, the matrix a and the matrix c are punched into a circular shape through a forming machine, and a circular saw blade I and a circular saw blade II are obtained;
s2: b, performing quenching and annealing processes on the matrix b, and stamping the matrix b into a round shape through a forming machine to obtain a round saw blade III;
s3, performing surface grinding treatment on the circular saw blade I, the circular saw blade II and the circular saw blade III;
s4: welding and connecting one side of the circular saw blade I and one side of the circular saw blade III, and welding and connecting one side of the circular saw blade II and the other side of the circular saw blade III to form a saw blade body;
s5: punching and forming the circular saw blade III by a forming machine, forming a cutter gear ring on the outer ring of the base body b to obtain the cutting edge, forming tooth grooves around the cutting edge by tooth washing treatment and punching and forming, and forming a through hole in the center of the saw blade body by punching and forming;
s6: and spraying the obtained periphery of the saw blade body by using a spraying machine to form a high-hardness coating, and vertically hanging and storing the saw blade body for more than 10 days.
Preferably, the quenching heating temperature of the a matrix and the c matrix is 780-840 ℃, and the annealing temperature is 480-560 ℃.
Specifically, the stamping time of the forming machine at S1 and S2 is 3-5S.
More preferably, in the step S3, the circular saw blade i, the circular saw blade ii, and the circular saw blade iii are further cleaned by a cleaning agent.
The utility model has the advantages that: the base body b is arranged between the base bodies a and c with the same specification, and the integral hardness of the base body b is higher than that of the base bodies a and c, so that the effect of arranging the blade on the base body b is better, and the mowing and cutting work is facilitated; meanwhile, the obtained matrix has high hardness, high strength, high performance properties of wear resistance, impact resistance and fatigue resistance through high carbon and less alloy components, and the structural property of the saw blade material is good; meanwhile, the processing technology has fewer steps, is favorable for expanding the production, popularizes the application range of the saw blade for mowing, and is not easy to generate the phenomenon of blade fracture when a harder object is encountered during cutting work.
Detailed Description
The following embodiments will be described in detail with reference to the accompanying examples, so that how to implement the technical means for solving the technical problems and achieving the technical effects of the present application can be fully understood and implemented.
The first embodiment is as follows:
table 1 a, b, c base composition ingredient table (%)
The utility model relates to a high-strength high-carbon low-alloy saw blade material for mowing, which comprises the following components: the cutting tool comprises a base body and a cutting edge, wherein the base body consists of a base body a, a base body b and a base body C, the component parts of the base body a are C, Si, Mn, P, Cr, Mo, Ni and Al, and the base body a consists of the following components in percentage by mass: c: 78%, Si: 20%, Mn: 0.09%, P: 0.008%, Cr: 0.16%, Mo: 0.009%, Ni: 0.06%, Al: 0.07 percent, the balance of Fe, the composition part of the b matrix is C, Si, Cr, Ti, Zr and Mo, and the b matrix comprises the following components in percentage by mass: c: 50%, Si: 48%, Cr: 0.32%, Ti: 0.31%, Zr: 0.008%, Mo: 0.08 percent, the balance of Fe, the bending strength of the saw blade material obtained in the first embodiment is more than or equal to 1200MPa, the cutting effect of the saw blade is better, and the addition of metals such as Cr, Mo and the like can improve the heat treatment performance and refine the matrix structure, so that the matrix has good strength and hardness and has the characteristics of impact resistance and fatigue resistance.
Example two:
table 2 a, b, c base composition table (%)
| C | Si | Cr | Mo | Mn | Ni | P | Al | Ti | Zr | |
| a base | 70% | 28% | 0.12% | 0.005% | 0.05% | 0.03% | 0.004% | 0.04% | / | / |
| b base body | 71% | 27% | 0.22% | 0.06% | / | / | / | / | 0.15% | 0.003% |
| c base body | 70% | 28% | 0.12% | 0.005% | 0.05% | 0.03% | 0.004% | 0.04% | / | / |
The utility model relates to a high-strength high-carbon low-alloy saw blade material for mowing, which comprises the following components: the cutting tool comprises a base body and a cutting edge, wherein the base body consists of a base body a, a base body b and a base body C, the component parts of the base body a are C, Si, Mn, P, Cr, Mo, Ni and Al, and the base body a consists of the following components in percentage by mass: c: 70%, Si: 28%, Mn: 0.05%, P: 0.004%, Cr: 0.12%, Mo: 0.005%, Ni: 0.03%, Al: 0.04 percent, the component of the matrix b is C, Si, Cr, Ti, Zr and Mo, and the matrix b comprises the following components in percentage by mass: c: 71%, Si: 28%, Cr: 0.22%, Ti: 0.15%, Zr: 0.003%, Mo: 0.06 percent, the bending strength of the saw blade material obtained in the second embodiment is more than or equal to 1150MPa, and the saw blade material also has the characteristics of better bending resistance and high hardness, and meets the requirements of high-strength high-carbon low alloy.
The proportion of the components of the matrix c is the same as that of the components of the matrix a, and the matrix a and the matrix c are the same, so that the matrix b can be conveniently welded between the matrix a and the matrix c, and the saw blade material has stronger structural property and good stability.
The thickness ratio of the matrix a to the matrix b to the matrix c is a: b: c = 2: 1: 2, the b matrix sets up in the middle of the saw bit material, owing to be provided with the cutting edge, can be less than the thickness of a matrix and c matrix, does benefit to high-speed cutting work more.
The cutting edge evenly arranged in the outer lane position of b base member, the cutting edge is arranged and can be more favorable to the high efficiency cutting around the outer lane of b base member, and cutting efficiency and cutting effect when processing are good.
The high-hardness coating and the wear-resistant coating are covered on the matrix a and the matrix c, the composite coating is covered on the matrix b, the hardness property of the surfaces of the matrix a and the matrix c is improved by spraying the high-hardness coating, so that the phenomena of cracking, surface damage and the like are not easy to occur in the stamping forming process, the wear-resistant coating improves the wear-resistant property, and the composite coating is convenient for the connection among the matrix a, the matrix c and the matrix b.
A preparation method of a high-strength high-carbon low-alloy saw blade material for mowing comprises the following steps:
s1: after quenching and annealing processes are carried out on the matrix a and the matrix c, the matrix c is punched into a round shape through a forming machine, and a round saw blade I and a round saw blade II are obtained; s2: b, quenching and annealing the substrate, and punching the substrate into a round shape by a forming machine to obtain a round saw blade III; s3, performing surface polishing treatment on the circular saw blade I, the circular saw blade II and the circular saw blade III; s4: welding one side of a circular saw blade I and one side of a circular saw blade III, and welding one side of a circular saw blade II and the other side of the circular saw blade III to form a saw blade body; s5: punching and forming the circular saw blade III by a forming machine, forming a cutter gear ring on the outer ring of the base body b to obtain a cutting edge, performing tooth washing treatment and punching and forming to form a tooth groove around the cutting edge, and punching and forming to form a through hole in the center of the saw blade body; s6: the obtained saw blade body is sprayed by a spraying machine to form a high-hardness coating, and then the saw blade body is vertically hung and stored for more than 10 days.
The quenching heating temperature of the a matrix and the c matrix is 780-840 ℃, the annealing temperature is 480-560 ℃, the hardness of the fine granular carbide obtained at the temperature is high, and when the quenching temperature is higher than 840 ℃, the hardness is reduced to a certain extent.
The punching time of the forming machine at S1 and S2 is 3-5S, the punching time is controlled within 3-5S, the production and the manufacturing of saw blade materials can be more effectively realized, the punching time of the forming machine is short, the production steps are convenient to reduce, and meanwhile, the manual operation part is reduced.
And step 3, cleaning the circular saw blade I, the circular saw blade II and the circular saw blade III by using a cleaning agent, timely cleaning the circular saw blade obtained by processing, facilitating the subsequent welding work, and enabling the hardness property to be better through the work of polishing, surface treatment and the like.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (9)
1. A high-strength high-carbon low-alloy saw blade material for mowing is characterized by comprising the following components in percentage by weight: the cutting tool comprises a base body and a cutting edge, wherein the base body consists of a base body a, a base body b and a base body C, the component parts of the base body a are C, Si, Mn, P, Cr, Mo, Ni and Al, and the base body a consists of the following components in percentage by mass: c: 70-78%, Si: 20-28%, Mn: 0.05-0.09%, P: 0.004-0.008% of Cr: 0.12-0.16%, Mo: 0.005-0.009%, Ni: 0.03-0.06%, Al: 0.04-0.07%, the balance of Fe, the component of the b matrix is C, Si, Cr, Ti, Zr and Mo, and the b matrix comprises the following components in percentage by mass: c: 50-71%, Si: 27-48%, Cr: 0.22-0.32%, Ti: 0.15 to 0.31%, Zr: 0.003-0.008% and Mo: 0.06-0.08%, and the balance of Fe.
2. The high strength, high carbon and low alloy saw blade material for cutting grass according to claim 1, wherein the proportion of the constituent part of the c-base is the same as the proportion of the constituent part of the a-base.
3. The high-strength high-carbon low-alloy saw blade material for mowing according to claim 1, wherein the thickness ratio of the a base, the b base and the c base is a: b: c = 2: 1: 2.
4. the high strength, high carbon, low alloy saw blade material for cutting grass according to claim 1, wherein said cutting edges are uniformly arranged at the outer circumference position of said b-base.
5. The high-strength high-carbon low-alloy saw blade material for mowing as claimed in claim 1, wherein the a substrate and the c substrate are covered with a high-hardness coating and a wear-resistant coating, and the b substrate is covered with a composite coating.
6. A preparation method of a high-strength high-carbon low-alloy saw blade material for mowing is characterized by comprising the following steps:
s1: after quenching and annealing processes are carried out on the matrix a and the matrix c, the matrix a and the matrix c are punched into a circular shape through a forming machine, and a circular saw blade I and a circular saw blade II are obtained;
s2: b, performing quenching and annealing processes on the matrix b, and stamping the matrix b into a round shape through a forming machine to obtain a round saw blade III;
s3, performing surface grinding treatment on the circular saw blade I, the circular saw blade II and the circular saw blade III;
s4: welding and connecting one side of the circular saw blade I and one side of the circular saw blade III, and welding and connecting one side of the circular saw blade II and the other side of the circular saw blade III to form a saw blade body;
s5: punching and forming the circular saw blade III by a forming machine, forming a cutter gear ring on the outer ring of the base body b to obtain the cutting edge, forming tooth grooves around the cutting edge by tooth washing treatment and punching and forming, and forming a through hole in the center of the saw blade body by punching and forming;
s6: and spraying the obtained periphery of the saw blade body by using a spraying machine to form a high-hardness coating, and vertically hanging and storing the saw blade body for more than 10 days.
7. The method for preparing a high-strength high-carbon low-alloy saw blade material for mowing according to claim 6, wherein the quenching heating temperature of the a matrix and the c matrix is 780-840 ℃, and the annealing temperature is 480-560 ℃.
8. The method for preparing a high-strength high-carbon low-alloy saw blade material for mowing according to claim 6, wherein the punching time of the forming machine at S1 and S2 is 3-5S.
9. The method for manufacturing a high-strength, high-carbon and low-alloy saw blade material for mowing according to claim 6, wherein in the step S3, the circular saw blade i, the circular saw blade ii and the circular saw blade iii are further cleaned by a cleaning agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111637741.7A CN114351025A (en) | 2021-12-30 | 2021-12-30 | High-strength high-carbon low-alloy saw blade material for mowing and preparation method of saw blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111637741.7A CN114351025A (en) | 2021-12-30 | 2021-12-30 | High-strength high-carbon low-alloy saw blade material for mowing and preparation method of saw blade |
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| CN114351025A true CN114351025A (en) | 2022-04-15 |
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| CN202111637741.7A Pending CN114351025A (en) | 2021-12-30 | 2021-12-30 | High-strength high-carbon low-alloy saw blade material for mowing and preparation method of saw blade |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3460630D1 (en) * | 1983-01-10 | 1986-10-16 | De Beers Ind Diamond | Abrasive product |
| CN104651695A (en) * | 2013-11-18 | 2015-05-27 | 青岛古宇石墨有限公司 | Formula for producing anti-fracture wear-resistant cutter |
| CN113751793A (en) * | 2021-08-20 | 2021-12-07 | 浙江中村精密刀具机械有限公司 | Saw blade with high-hardness composite coating and preparation method thereof |
-
2021
- 2021-12-30 CN CN202111637741.7A patent/CN114351025A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3460630D1 (en) * | 1983-01-10 | 1986-10-16 | De Beers Ind Diamond | Abrasive product |
| CN104651695A (en) * | 2013-11-18 | 2015-05-27 | 青岛古宇石墨有限公司 | Formula for producing anti-fracture wear-resistant cutter |
| CN113751793A (en) * | 2021-08-20 | 2021-12-07 | 浙江中村精密刀具机械有限公司 | Saw blade with high-hardness composite coating and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 方啸虎主编: "《超硬材料科学与技术 上卷》", 30 April 1998, 中国建材工业出版社 * |
| 王秦生等: "碳化硅在金刚石工具中的应用", 《金刚石与磨料磨具工程》 * |
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Application publication date: 20220415 |