CN212796114U - Multilayer composite steel - Google Patents
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- CN212796114U CN212796114U CN202020416688.2U CN202020416688U CN212796114U CN 212796114 U CN212796114 U CN 212796114U CN 202020416688 U CN202020416688 U CN 202020416688U CN 212796114 U CN212796114 U CN 212796114U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 267
- 239000010959 steel Substances 0.000 title claims abstract description 267
- 239000002131 composite material Substances 0.000 title claims abstract description 71
- 238000005520 cutting process Methods 0.000 abstract description 37
- 238000000034 method Methods 0.000 abstract description 16
- 238000007688 edging Methods 0.000 abstract description 6
- 230000002146 bilateral effect Effects 0.000 abstract description 5
- 238000010791 quenching Methods 0.000 abstract description 5
- 230000000171 quenching effect Effects 0.000 abstract description 5
- 241000561734 Celosia cristata Species 0.000 abstract description 4
- 210000001520 comb Anatomy 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 25
- 238000010438 heat treatment Methods 0.000 description 13
- 239000010935 stainless steel Substances 0.000 description 13
- 229910001220 stainless steel Inorganic materials 0.000 description 13
- 229910000677 High-carbon steel Inorganic materials 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000000137 annealing Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000007723 die pressing method Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 241000282414 Homo sapiens Species 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 229910000906 Bronze Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
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- 238000005336 cracking Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
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- 235000019634 flavors Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000005098 hot rolling 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
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Abstract
The utility model discloses a multi-layer composite steel, which is formed by alternately superposing a hard steel layer and a tough steel layer; the total number of the hard steel layers and the tough steel layers is more than 50, and the total number of the layers is an odd number; and in the extension direction of the multilayer composite steel, the superposed hard steel layer or tough steel layer extends in a wave crest and wave trough alternate distribution manner. The utility model is formed by overlapping the hard steel layer and the tough steel layer at intervals for several times, which ensures that the kitchen knife has both hard steel and tough steel at the cutting edge part, thereby not only ensuring the high hardness of the cutting edge part, but also having good toughness; the arrangement of the hard steel layer and the tough steel layer also adopts a bilateral symmetry mode, so that the cutter is not easy to bend in the quenching process; the setting of hard steel layer and the mutual embedding of tough steel layer guarantees that the cutter can both be hard steel and tough steel coexistence at any angle edging, and in the use of later stage, along with the wearing and tearing of tough steel, the blade part of cutter is the cockscomb structure for the cutter has good cutting nature and wearability.
Description
Technical Field
The utility model relates to a multilayer composite metal goods technical field, concretely relates to multilayer composite steel.
Background
With the progress of human civilization, bronze knives, iron knives, steel knives, stainless steel knives and even ceramic knives of the young are continuously appeared in the kitchen of human beings, and along with the development of food culture, the tool knives are gradually developed into household articles with use and artistic values from simple cooking tools. The classification and the function of the kitchen knife are more and more refined, and the kitchen knife is developed into the special combined knife era today from the era of hitting the kitchen knife all the day.
Generally, there are three major kitchen knife systems in the world: 1. chinese kitchen knife, 2. Western kitchen knife, 3 Japanese kitchen knife. Stainless steel is generally used as a material, some ceramic knives are afraid of falling, and some iron knives are easy to rust and are slowly eliminated although the iron knives have excellent sharpness and wear resistance. The mainstream product is therefore still stainless steel.
If the knife is unfavorable and the knife is not cut properly, the freshness cannot be given out, the flavor cannot be put in and the wok gas cannot be enough. So the Chinese characters are: improper diet can be caused by improper cutting. The importance of kitchen knives in food processing can be seen. A kitchen knife with excellent performance not only needs to have exquisite appearance, but also has excellent sharpness and wear resistance. Stainless steel materials that can be hardened by heat treatment (quenching, tempering) are generally used as the cutting edge, and the hardness of these materials can be achieved by heat treatment (HRC52-60), but as the hardness increases, the toughness becomes worse, that is, the hardness and toughness are in conflict, and it is difficult to obtain the effects of high hardness and good toughness.
So three-layer composite steel has been developed. The middle part adopts high-hardness stainless steel material as blade steel, and the two side surfaces are symmetrically made of tough steel with good toughness, so that the cutter has high hardness and good toughness basically.
2018.10.17, a patent of "a low-cost high-quality composite stainless steel for kitchen knife and manufacturing method thereof", which is published under the publication number CN201811211539.6, discloses a low-cost high-quality composite stainless steel for kitchen knife and manufacturing method thereof. The low-carbon stainless steel pipe and the high-carbon stainless steel bar are adopted to form a steel billet, and the steel billet is processed into a plate with proper thickness through hot rolling and cold rolling. The structure of the plate is that three layers of composite steel are arranged near the width center, and single low-carbon stainless steel is arranged on two sides of the plate. When the kitchen knife is manufactured, the cutting edges of two knife blanks are blanked oppositely, namely the position of the three layers of composite steel at the center of the width of the plate is used as the cutting edge, and the edge part of the width of the plate is used as the knife body. Therefore, the sharpness and the wear resistance of the cutting edge can be improved by utilizing the high strength and the high hardness of the high-carbon stainless steel; the quality of the cutter can be improved by utilizing the high toughness and high corrosion resistance of the low-carbon stainless steel at the cutter body, and the cost is reduced.
However, the stainless steel material for the cutter (especially, the kitchen knife) has the following problems:
the material can ensure high hardness and good toughness at the knife body, but the edge part is mainly made of hard steel because the edge part is abraded by tough steel caused by grinding and edge cutting, so that the edge part cannot realize both high hardness and high toughness.
Based on the circumstances, the utility model provides a multilayer composite steel can effectively solve above problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multilayer composite steel. The multi-layer composite steel of the utility model is formed by mutually and sequentially superposing the hard steel layer and the tough steel layer at intervals for a plurality of times, thereby ensuring that the kitchen knife has both hard steel and tough steel at the cutting edge part, ensuring the high hardness of the cutting edge part and having good toughness; the arrangement of the hard steel layer and the tough steel layer also adopts a bilateral symmetry mode, so that the cutter is not easy to bend in the quenching process; the setting of hard steel layer and the mutual embedding of tough steel layer guarantees that the cutter can both be hard steel and tough steel coexistence at any angle edging, and in the use of later stage, along with the wearing and tearing of tough steel, the blade part of cutter is the cockscomb structure for the cutter has good cutting nature and wearability.
The utility model discloses a following technical scheme realizes:
a multi-layer composite steel is formed by alternately laminating hard steel layers and tough steel layers; the total number of the hard steel layers and the tough steel layers is more than 50, and the total number of the layers is an odd number;
in an extending direction of the multilayer composite steel, the overlapped hard steel layer or tough steel layer extends in a shape of alternately distributed wave crests and wave troughs;
the grade of the hard steel layer is 5Cr15MoV or 8Cr14 MoV;
the grade of the tough steel layer is 1Cr13 or Cr 13.
The utility model adopts a multilayer composite steel structure, which is formed by mutually and sequentially overlapping a hard steel layer and a tough steel layer at intervals, the structure not only improves the integral hardness and toughness of the cutter, but also ensures that the cutting edge part of the cutter has both hard steel and tough steel, and ensures the high hardness and good toughness of the cutting edge part; after the multilayer composite steel (plate) is subjected to die pressing, the hard steel layer and the tough steel layer are embedded into each other (in the extending direction of the multilayer composite steel, the overlapped hard steel layer or tough steel layer extends in a wave crest and wave trough alternate distribution shape), and the hard steel and tough steel are distributed at each linear position at a certain interval, so that the hard steel and tough steel can coexist when a cutter is edged at any angle; the total number of the layers of the multilayer composite steel is singular, namely the multilayer composite steel is designed symmetrically on two sides, so that the multilayer composite steel is not easy to deform greatly in the heat treatment process, the straightening workload is avoided or reduced, and the rejection rate caused by straightening fracture is reduced; the hard steel layer is made of 5Cr15MoV and 8Cr14MoV, the two materials have high hardness and low cost, and are common materials in composite steel production; the tough steel layer is made of 1Cr13 and Cr13, and the two materials have good toughness and lower cost and are common materials in the production of composite steel.
Preferably, the odd layers are the hard steel layers, and the even layers are the tough steel layers.
Preferably, the odd layers are the tough steel layers, and the even layers are the hard steel layers.
Preferably, the thickness of the multilayer composite steel is 2-5 mm.
Preferably, the thickness of the multilayer composite steel is 2-3 mm.
Preferably, the total number of the hard steel layer and the tough steel layer which are laminated is 61-81.
The utility model discloses a manufacturing method of multilayer composite steel, including following step:
A. the hard steel and the tough steel are alternately overlapped to more than 50 layers, and the total number of layers is odd, so that the multilayer composite steel plate is obtained; the grade of the hard steel is 5Cr15MoV or 8Cr14MoV, and the grade of the tough steel is 1Cr13 or Cr 13;
the hard steel (5Cr15MoV or 8Cr14MoV) has high hardness, and the tough steel (1Cr13 or 2Cr13) has good toughness; the utility model discloses the people discovers through a large amount of experiments: the surfaces on the two sides are necessarily symmetrical in material, namely, the hard steel layer or the tough steel layer, and the total number of the layers is odd, so that the symmetry of the surfaces on the two sides is ensured, the side bending phenomenon and the like in the subsequent heat treatment process are effectively avoided, and the quality of the product is ensured.
B. Rolling the multilayer composite steel plate into a steel plate material with the thickness of 2-3 mm, and then annealing;
in the above steps, the multi-layer clad steel plate can be rolled into a steel plate with a thickness of 2-3 mm by adopting a high-carbon steel conventional process (the thickness of the plate can be adjusted according to actual requirements); the annealing can be carried out by adopting a high-carbon steel process, so that the hardness is reduced, and the cutting processability is improved.
C. Punching and shearing the steel plate material into a cutter blank; heating to 750-850 ℃, carrying out die pressing to generate grooves or convex marks perpendicular to the cutting edge on the surface of the steel plate, wherein the grooves or convex marks are alternately distributed, the width of each groove or convex mark is 2-3 mm, the depth of each groove or convex mark is 0.2mm, and the distance between each groove and each convex mark is 2-3 mm;
after the steps, the hard steel layer and the tough steel layer inside the material (the cutter blank) are stressed to bend and deform, and finally, in the extension direction of the multilayer composite steel, the hard steel layer or the tough steel layer after being overlapped extends in a wave crest and wave trough alternately distributed manner, namely, the hard steel and the tough steel are arranged at certain intervals at each linear position, so that the hard steel layer or the tough steel layer after being overlapped extends in a wave crest and wave trough alternately distributed manner in the extension direction of the multilayer composite steel.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the multi-layer composite steel of the utility model is formed by mutually and sequentially superposing the hard steel layer and the tough steel layer at intervals for a plurality of times, thereby ensuring that the kitchen knife has both hard steel and tough steel at the cutting edge part, ensuring the high hardness of the cutting edge part and having good toughness; the arrangement of the hard steel layer and the tough steel layer also adopts a bilateral symmetry mode, so that the cutter is not easy to bend in the quenching process; the setting of hard steel layer and the mutual embedding of tough steel layer guarantees that the cutter can both be hard steel and tough steel coexistence at any angle edging, and in the use of later stage, along with the wearing and tearing of tough steel, the blade part of cutter is the cockscomb structure for the cutter has good cutting nature and wearability.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the present invention;
FIG. 3 is a partial schematic view of the present invention;
FIG. 4 is a schematic view showing a state of press working of the multi-layered composite steel according to the present invention.
In the figure: and 3, a mold.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Example 1:
as shown in fig. 1 to 3, a multi-layered clad steel is formed by alternately laminating hard steel layers 1 and tough steel layers 2; the total number of the hard steel layer 1 and the tough steel layer 2 is more than 50, and the total number of the layers is an odd number;
the total number of layers of the multilayer composite steel is singular, namely the multilayer composite steel adopts bilateral symmetry design, the multilayer composite steel is not easy to generate large deformation in the heat treatment process, the straightening workload is avoided or reduced, and the rejection rate caused by straightening fracture is also reduced.
In an extending direction of the multilayer composite steel, the superposed hard steel layer 1 or tough steel layer 2 extends in a wave crest a and wave trough b alternately distributed manner;
the cutting tool is characterized in that a multi-layer composite steel structure is adopted, and the hard steel layer 1 and the tough steel layer 2 are overlapped at intervals in sequence to form the cutting tool, so that the integral hardness and toughness of the cutting tool are improved, the cutting edge part of the cutting tool can be ensured to be provided with both hard steel and tough steel, and the high hardness and good toughness of the cutting edge part are ensured; after the multi-layer composite steel is subjected to die pressing, the hard steel layer 1 and the tough steel layer 2 are embedded into each other (as shown in figure 3), and hard steel and tough steel are distributed at each linear position at certain intervals, so that the hard steel and the tough steel can coexist when the cutter is edged at any angle.
The grade of the hard steel layer 1 is 5Cr15MoV or 8Cr14 MoV;
the hard steel layer 1 is made of 5Cr15MoV and 8Cr14MoV which are high in hardness and low in cost.
The grade of the tough steel layer 2 is 1Cr13 or Cr 13.
The tough steel layer 2 is made of 1Cr13 and Cr13, and the two materials have good toughness and lower cost.
Further, in another embodiment, as shown in fig. 1, the odd number layers are the hard steel layers 1, and the even number layers are the tough steel layers 2.
The odd layers of the multilayer composite steel are the hard steel layers 1, the even layers of the multilayer composite steel are the tough steel layers 2, namely the outermost layers of the two surfaces of the multilayer composite steel are the hard steel layers 1, and the steel plates arranged in the way have good toughness but higher hardness.
Further, in another embodiment, as shown in fig. 2, the odd number layers are the tough steel layers 2, and the even number layers are the hard steel layers 1.
The odd layers of the multilayer composite steel are the tough steel layers 2, the even layers of the multilayer composite steel are the hard steel layers 1, namely the two outermost layers of the multilayer composite steel are the tough steel layers 2, and the steel plates arranged in the way have high hardness but better toughness.
Further, in another embodiment, the thickness of the multilayer composite steel is 2-5 mm.
When the thickness of the multilayer composite steel is 2-5 mm, the manufactured cutter is high in hardness and good in toughness.
Further, in another embodiment, the thickness of the multilayer composite steel is 2-3 mm.
When the thickness of the multilayer composite steel is 2-3 mm, the hardness of the manufactured cutter is higher, and the toughness is better; and the thinner the multilayer composite steel is, the better the cutting performance of the cutter is.
Further, in another embodiment, the total number of the stacked hard steel layers 1 and the tough steel layers 2 is 61-81.
When the total number of layers of the multilayer composite steel is 61-81 layers, the manufactured cutter is high in hardness and good in toughness, cutting performance and wear resistance.
The utility model discloses a manufacturing method of multilayer composite steel, including following step:
A. the hard steel and the tough steel are alternately overlapped to more than 50 layers, and the total number of layers is odd, so that the multilayer composite steel plate is obtained; the grade of the hard steel is 5Cr15MoV or 8Cr14MoV, and the grade of the tough steel is 1Cr13 or Cr 13;
the hard steel (5Cr15MoV or 8Cr14MoV) has high hardness, and the tough steel (1Cr13 or 2Cr13) has good toughness; the utility model discloses the people discovers through a large amount of experiments: the surfaces on the two sides are necessarily symmetrical in material, namely, the hard steel layer or the tough steel layer, and the total number of the layers is odd, so that the symmetry of the surfaces on the two sides is ensured, the side bending phenomenon and the like in the subsequent heat treatment process are effectively avoided, and the quality of the product is ensured.
B. Rolling the multilayer composite steel plate into a steel plate material with the thickness of 2-3 mm, and then annealing;
in the above steps, the multi-layer clad steel plate can be rolled into a steel plate with a thickness of 2-3 mm by adopting a high-carbon steel conventional process (the thickness of the plate can be adjusted according to actual requirements); the annealing can be carried out by adopting a high-carbon steel process, so that the hardness is reduced, and the cutting processability is improved.
C. Punching and shearing the steel plate material into a cutter blank; heating to 750-850 ℃, carrying out die pressing to generate grooves or convex marks perpendicular to the cutting edge on the surface of the steel plate, wherein the grooves or convex marks are alternately distributed, the width of each groove or convex mark is 2-3 mm, the depth of each groove or convex mark is 0.2mm, and the distance between each groove and each convex mark is 2-3 mm;
after the steps, the hard steel layer and the tough steel layer inside the material (the cutter blank) are stressed to bend and deform, and finally, in the extension direction of the multilayer composite steel, the hard steel layer or the tough steel layer after being overlapped extends in a wave crest and wave trough alternately distributed manner, namely, the hard steel and the tough steel are arranged at certain intervals at each linear position, so that the hard steel layer or the tough steel layer after being overlapped extends in a wave crest and wave trough alternately distributed manner in the extension direction of the multilayer composite steel.
The utility model is formed by overlapping the hard steel layer and the tough steel layer at intervals for several times, which ensures that the kitchen knife has both hard steel and tough steel at the cutting edge part, thereby not only ensuring the high hardness of the cutting edge part, but also having good toughness; the arrangement of the hard steel layer and the tough steel layer also adopts a bilateral symmetry mode, so that the cutter is not easy to bend in the quenching process; the setting of hard steel layer and the mutual embedding of tough steel layer guarantees that the cutter can both make the blade part hard steel and tough steel alternate coexistence at any angle edging, and in the use in later stage, along with the wearing and tearing of tough steel, the blade part of cutter is the cockscomb structure for the cutter has good cutting nature and wearability.
The utility model discloses in, adopt multilayer clad steel make multilayer clad steel cutter's method include following step:
1) the hard steel and the tough steel are alternately overlapped to more than 50 layers, and the total number of layers is odd, so that the multilayer composite steel plate is obtained; the grade of the hard steel is 5Cr15MoV or 8Cr14MoV, and the grade of the tough steel is 1Cr13 or Cr 13;
the hard steel (5Cr15MoV or 8Cr14MoV) has high hardness, and the tough steel (1Cr13 or 2Cr13) has good toughness; the utility model discloses the people discovers through a large amount of experiments: the surfaces on the two sides are necessarily symmetrical in material, namely, the hard steel layer or the tough steel layer, and the total number of the layers is odd, so that the symmetry of the surfaces on the two sides is ensured, the side bending phenomenon and the like in the subsequent heat treatment process are effectively avoided, and the quality of the product is ensured.
2) Rolling the multilayer composite steel plate into a steel plate material with the thickness of 2-3 mm, and then annealing;
in the above steps, the multi-layer clad steel plate can be rolled into a steel plate with a thickness of 2-3 mm by adopting a high-carbon steel conventional process (the thickness of the plate can be adjusted according to actual requirements); the annealing can be carried out by adopting a high-carbon steel process, so that the hardness is reduced, and the cutting processability is improved.
3) Punching and shearing the steel plate material into a cutter blank; heating to 750-850 ℃, carrying out die pressing to generate grooves or convex marks perpendicular to the cutting edge on the surface of the steel plate, wherein the grooves or convex marks are alternately distributed, the width of each groove or convex mark is 2-3 mm, the depth of each groove or convex mark is 0.2mm, and the distance between each groove and each convex mark is 2-3 mm; then, grinding the grooves and the convex marks on the two sides to obtain a cutter blank;
after the above steps, the hard steel layer and the tough steel layer inside the material (the cutter blank) are stressed to bend and deform, and finally, in an extending direction of the multilayer composite steel, the overlapped hard steel layer 1 or tough steel layer 2 extends in a manner that wave crests a and wave troughs b are alternately distributed, that is, the hard steel and tough steel are arranged at each linear position at certain intervals.
4) And grinding the grooves and the convex marks on the two sides to be flat, taking a steel plate material with the thickness of 3mm as an example, and grinding the grooves and the convex marks on the two sides to be flat to obtain the actual thickness of 2.6 mm.
Heating the cutter blank to 1050-1100 ℃, keeping the temperature for 30 minutes, rapidly cooling the cutter blank under the condition of not causing surface cracking, then heating the cutter blank to 180-260 ℃, keeping the temperature for 120 minutes, and then slowly cooling the cutter blank;
the hardness of the knife blank can reach HRC58-60 through the heat treatment of the steps.
5) Performing 14-60-degree edging on the cutter blank treated in the step 4) to obtain a cutter primary product;
the cutting angle of the cutter is also an important factor influencing the performance of the cutter, the smaller the angle is, the sharper the cutting edge is, but the strength and the durability are reduced, so that the optimum performance can be ensured only by determining the cutting angle according to different purposes of the cutter; the utility model discloses the people discovers through a large amount of experiments: the utility model discloses a multilayer composite steel cutter of material (multilayer composite steel) preparation is fit for 14 ~ 60 edging, can make multilayer composite steel cutter guarantee its best performance).
6) And polishing the primary cutter, and assembling cutter accessories after sand blasting to obtain the multilayer composite steel cutter.
The cutter accessories in the steps are cutter accessories commonly used in the field such as a cutter handle.
Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (6)
1. A multi-layer clad steel characterized by: is formed by alternately superposing a hard steel layer (1) and a tough steel layer (2); the total number of the hard steel layer (1) and the tough steel layer (2) is more than 50, and the total number of the layers is an odd number;
in the extending direction of the multilayer composite steel, the overlapped hard steel layer (1) or tough steel layer (2) extends in a shape that wave crests (a) and wave troughs (b) are alternately distributed;
the grade of the hard steel layer (1) is 5Cr15MoV or 8Cr14 MoV;
the tough steel layer (2) is 1Cr13 or Cr 13.
2. A multi-layered composite steel according to claim 1, characterized in that: the odd layers are the hard steel layers (1), and the even layers are the tough steel layers (2).
3. A multi-layered composite steel according to claim 1, characterized in that: the odd layers are the tough steel layers (2), and the even layers are the hard steel layers (1).
4. A multi-layered composite steel according to claim 1, characterized in that: the thickness L of the multilayer composite steel is 2-5 mm.
5. A multi-layered composite steel according to claim 1, characterized in that: the thickness of the multilayer composite steel is 2-3 mm.
6. A multi-layered composite steel according to claim 1, characterized in that: the total number of layers of the hard steel layer (1) and the tough steel layer (2) is 61-81.
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| CN202020416688.2U CN212796114U (en) | 2020-03-27 | 2020-03-27 | Multilayer composite steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331963A (en) * | 2020-03-27 | 2020-06-26 | 嘉兴吉森科技有限公司 | Multilayer composite steel and manufacturing method of multilayer composite steel cutter |
| WO2024069383A1 (en) * | 2022-09-28 | 2024-04-04 | 武汉苏泊尔炊具有限公司 | Knife and method for manufacturing knife |
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2020
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111331963A (en) * | 2020-03-27 | 2020-06-26 | 嘉兴吉森科技有限公司 | Multilayer composite steel and manufacturing method of multilayer composite steel cutter |
| CN111331963B (en) * | 2020-03-27 | 2024-01-05 | 嘉兴吉森科技有限公司 | Multilayer composite steel and manufacturing method of multilayer composite steel cutter |
| WO2024069383A1 (en) * | 2022-09-28 | 2024-04-04 | 武汉苏泊尔炊具有限公司 | Knife and method for manufacturing knife |
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Effective date of registration: 20220513 Address after: 314113 Room 102, floor 1, building 2, No. 166, Kapa Road, Dayun Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Zhejiang hummingbird New Material Co.,Ltd. Address before: Room 103, 43 Qingyun Road, Dayun Town, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: Zhejiang Jisen Metal Technology Co.,Ltd. |
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