CN113637968A - Self-sharpening cutting edge and manufacturing method thereof - Google Patents
Self-sharpening cutting edge and manufacturing method thereof Download PDFInfo
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- CN113637968A CN113637968A CN202110938929.9A CN202110938929A CN113637968A CN 113637968 A CN113637968 A CN 113637968A CN 202110938929 A CN202110938929 A CN 202110938929A CN 113637968 A CN113637968 A CN 113637968A
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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
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Abstract
The invention discloses a self-sharpening kitchen cutting edge and a manufacturing method thereof, wherein the self-sharpening cutting edge is designed and manufactured from a microscopic angle: the material components and the performance of the alloying strengthening layer or the cladding strengthening layer of the cutting edge show one-way decreasing of mechanical performance hardness of the cutting edge formed by one-way decreasing change from the alloying strengthening or cladding strengthening surface in the direction vertical to the cutting edge after rolling, and the component gradient and the performance gradient of the cutting edge determine the abrasion gradient of the cutting edge in the using process of the cutting edge, so the sharpness of the cutting edge is kept, namely the cutting edge has self-sharpening performance.
Description
Technical Field
The invention discloses a self-sharpening cutting edge and a manufacturing method thereof, relates to alloying strengthening and cladding strengthening of a cutting edge of a cutter and a subsequent hot rolling forming process technology of a cutting edge of a cutter blank, and belongs to the technical field of metal processing.
Background
The sharpness and the sharpness durability of the knife are the most important properties of the knife, and depend on the toughness, the wear resistance and the corrosion resistance of the edge material under the condition that the sharpening process conditions are consistent, and the prior methods for manufacturing the kitchen knife with high sharpness and sharpness durability comprise the following methods: 1) the whole body is made of high-hardness steel or the cutting edge is welded with the high-hardness steel, the cutting edge is sharp and wear-resistant, but the toughness is poor, and the cutting edge is easy to break; 2) the three-layer composite steel of high-hardness wear-resistant steel is clamped by the steel with good toughness, the composite steel cutting edge is manufactured by forging or rolling, the cutting edge is sharp and wear-resistant, the clamping and toughening cutting edge of the steel with good toughness is not easy to break, but the cutting edge has poor repeatability due to the high hardness and wear resistance of the steel of the cutting edge, namely after the cutting edge is passivated, the household manual sharpening is very difficult to sharpen; 3) steel with good toughness is used as a base body of the knife, a layer of steel with high hardness and wear resistance is compounded at the cutting edge part through forging or rolling, namely, the cutting edge of the two layers of composite steel has the advantages of the three layers of composite steel, the compound benefit of the steel is superior to that of the three layers of composite steel, but the process difficulty of forging or rolling of the steel is higher than that of the three layers of composite steel; 4) the invention discloses a self-sharpening cutting edge and a manufacturing method thereof, wherein the cutting edge is designed and manufactured from a microcosmic angle, and the four cutting edges are integrally uniform materials in microcosmic cutting edge investigation: the material components and the performance of the cutting edge are in one-way gradual change from an alloying strengthening or cladding strengthening surface in the direction vertical to the cutting edge, and the component gradient and the performance gradient of the cutting edge determine the abrasion gradient of the cutting edge in the using process, so that the sharpness of the cutting edge is maintained, namely the cutting edge has self-sharpening performance.
Disclosure of Invention
The invention discloses a self-sharpening cutting edge and a manufacturing method thereof, wherein the self-sharpening cutting edge is designed and manufactured from a microscopic angle: the mechanical performance and hardness of the cutting edge are reduced in a one-way mode, wherein the mechanical performance and hardness of the cutting edge are formed by the one-way reduction change of alloying strengthening or cladding strengthening surfaces in the direction perpendicular to the cutting edge, and the component gradient and the performance gradient of the cutting edge determine the abrasion gradient of the cutting edge in the using process, so that the sharpness of the cutting edge is maintained, namely the cutting edge has self-sharpening performance.
The manufacturing method of the self-sharp cutting edge comprises the following steps:
1) preparing a cutter body steel plate with an alloyed reinforced cutting edge or a cladding reinforced cutting edge: the alloy which can greatly improve the mechanical properties such as hardness of the cutting edge is melted into the cutting edge part of the steel plate of the cutter body according to the cutting edge curve of the kitchen knife and a certain width and depth, and then the alloyed strengthened cutting edge is obtained; or alloy with certain width and thickness is cladded on the cutting edge part of the steel plate of the cutter body, thus obtaining a cladded reinforced cutting edge; the cutter body steel plate is a steel plate with lower heat treatment hardness and low wear resistance;
2) hot rolling of an alloying strengthened cutting edge or a cladding strengthened cutting edge: heating a cutter body steel plate with an alloyed reinforced cutting edge or a melt-coated reinforced cutting edge to 1100-1200 ℃, then carrying out hot rolling to obtain a cutter blank with a cutting edge end with a thickness of 0.2-0.5 mm and a wedge-shaped section, wherein the cutting edge alloyed reinforced layer or the melt-coated reinforced layer of the cutting edge and the cutting edge part of the cutter body steel plate are integrally rolled to be thinner, the composition and the mechanical property microscopic gradient of the alloyed reinforced layer or the melt-coated reinforced layer of the cutting edge are reserved, and the cutter body steel plate is quenched by using waste heat after rolling;
3) the edging method of the rolling edge with the alloyed strengthened edge or the cladding strengthened edge comprises the following steps: and (3) grinding and edging the steel plate side of the blade body of the cutting edge to ensure that the part with the highest alloying strengthening or cladding strengthening mechanical property is positioned on the blade tip of the cutting edge.
Drawings
Fig. 1 is a schematic diagram of a self-sharpening cutting edge structure.
In fig. 1: 1: a cutter body, 2: an alloyed layer or a cladding layer.
Claims (3)
1. The invention discloses a self-sharpening cutting edge and a manufacturing method thereof, which are characterized by comprising the following steps:
1) the self-sharpening cutting edge is formed by the fact that the material components and the mechanical properties of the cutting edge are changed from an alloying strengthening or cladding strengthening surface in a one-way microscopic descending manner in the direction perpendicular to the cutting edge surface, and the material component gradient and the mechanical property gradient of the cutting edge determine the abrasion gradient of the cutting edge in the using process of the self-sharpening cutting edge, so that the sharpness of the cutting edge is kept, namely the cutting edge has the self-sharpening property;
2) the manufacturing method of the self-sharp cutting edge comprises the following steps:
preparing a cutter body steel plate with an alloyed reinforced cutting edge or a cladding reinforced cutting edge: the alloy which can greatly improve the mechanical properties such as hardness of the cutting edge is melted into the cutting edge part of the steel plate of the cutter body according to the cutting edge curve, a certain width and a certain depth, and then the alloyed strengthened cutting edge is obtained; or alloy with certain width and thickness is cladded on the cutting edge part of the steel plate of the cutter body, thus obtaining a cladded reinforced cutting edge;
3) hot rolling of an alloying strengthened cutting edge or a cladding strengthened cutting edge: heating a cutter body steel plate with an alloyed reinforced cutting edge or a melt-coated reinforced cutting edge to 1100-1200 ℃, and then carrying out hot rolling to obtain a cutter blank with a cutting edge end with a thickness of 0.2-0.5 mm and a wedge-shaped section, wherein the cutting edge alloyed reinforced layer or the melt-coated reinforced layer of the cutting edge and the cutting edge part of the cutter body steel plate are integrally rolled to be thinner, and the material components and the mechanical property microscopic gradient of the alloyed reinforced layer or the melt-coated reinforced layer of the cutting edge are reserved;
4) the edging method of the rolling blade with the alloyed strengthened blade or the cladding strengthened blade comprises the following steps: and (3) grinding and edging the steel plate side of the blade body of the cutting edge to ensure that the part with the highest alloying strengthening or cladding strengthening mechanical property is positioned on the blade tip of the cutting edge.
2. The steel plate for a cutter body according to claim 1, which is a steel plate having a carbon content of less than 0.2% and having a low hardness and a low wear resistance by heat treatment, so as to improve self-sharpening properties and recyclability of the self-sharpening edge.
3. The cutter body steel plate of claim 1, which is quenched by waste heat after being rolled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110938929.9A CN113637968A (en) | 2021-08-16 | 2021-08-16 | Self-sharpening cutting edge and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110938929.9A CN113637968A (en) | 2021-08-16 | 2021-08-16 | Self-sharpening cutting edge and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113637968A true CN113637968A (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110938929.9A Pending CN113637968A (en) | 2021-08-16 | 2021-08-16 | Self-sharpening cutting edge and manufacturing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178986A (en) * | 2022-08-04 | 2022-10-14 | 内蒙古一机集团瑞特精密工模具有限公司 | Method for manufacturing caragana microphylla harvester blade |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6105261A (en) * | 1998-05-26 | 2000-08-22 | Globix Technologies, Inc. | Self sharpening blades and method for making same |
| US20070277492A1 (en) * | 2006-05-31 | 2007-12-06 | Imants Ekis | Self-sharpening disc mower blade |
| US20090177217A1 (en) * | 2006-02-06 | 2009-07-09 | Mynosys Cellular Devices, Inc. | Microsurgical cutting instruments |
| CN211982470U (en) * | 2019-12-31 | 2020-11-24 | 中机智能装备创新研究院(宁波)有限公司 | High sharpness self-sharpening rotary blade |
-
2021
- 2021-08-16 CN CN202110938929.9A patent/CN113637968A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6105261A (en) * | 1998-05-26 | 2000-08-22 | Globix Technologies, Inc. | Self sharpening blades and method for making same |
| US20090177217A1 (en) * | 2006-02-06 | 2009-07-09 | Mynosys Cellular Devices, Inc. | Microsurgical cutting instruments |
| US20070277492A1 (en) * | 2006-05-31 | 2007-12-06 | Imants Ekis | Self-sharpening disc mower blade |
| CN211982470U (en) * | 2019-12-31 | 2020-11-24 | 中机智能装备创新研究院(宁波)有限公司 | High sharpness self-sharpening rotary blade |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178986A (en) * | 2022-08-04 | 2022-10-14 | 内蒙古一机集团瑞特精密工模具有限公司 | Method for manufacturing caragana microphylla harvester blade |
| CN115178986B (en) * | 2022-08-04 | 2024-02-20 | 内蒙古一机集团瑞特精密工模具有限公司 | Manufacturing method of caragana microphylla harvester blade |
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