CN109176903B - Diamond saw blade for dry cutting of ceramic products and preparation method thereof - Google Patents
Diamond saw blade for dry cutting of ceramic products and preparation method thereof Download PDFInfo
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- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
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Abstract
The invention discloses a diamond saw blade for dry cutting of ceramic products and a preparation method thereof. The diamond saw blade tool bit for the dry cutting ceramic product is divided into a first cutting area, a second cutting area and a third cutting area, the raw materials of the first cutting area, the second cutting area and the third cutting area of the tool bit are selected, and the content of each raw material is optimized, so that the diamond saw blade for the dry cutting ceramic product has good mechanical properties such as hardness, tool bit abrasion ratio and the like, can enable the cutting surface of the cut ceramic to be smoother during cutting, has high cutting efficiency, is not easy to break edges, and has wide application prospect.
Description
Technical Field
The invention relates to a diamond saw blade, in particular to a diamond saw blade for dry cutting of ceramic products and a preparation method thereof.
Background
The diamond saw blade is the diamond tool which consumes the most in the world at present, and is widely applied to processing of stone materials, glass, ceramics and cast iron materials and engineering construction of houses, roads, bridges and the like. With the continuous improvement of the manufacturing technology of the diamond saw blade and the continuous reduction of the production cost, the application field of the diamond saw blade is continuously expanded, and the demand is also continuously expanded. With the development of WTO and global economy integration in China, the diamond saw blade industry in China also faces huge opportunities and challenges, and meanwhile, the diamond saw blade industry in China is the largest market in the world at present. However, since the development and development of the diamond saw blade in China are late, the quality, the type, the manufacturing technology and the like of the diamond saw blade have great difference with developed countries, and therefore, the production of the diamond saw blade with high performance has important significance.
At present, the diamond saw blade for dry cutting of ceramic products has the following problems: the ceramic has high hardness, difficult cutting and low cutting efficiency; is fragile, and is easy to have edge breakage, rough cutting surface and the like during cutting.
Disclosure of Invention
In view of the above, the present invention is directed to a diamond saw blade for dry cutting of ceramic products and a method for manufacturing the same. The diamond saw blade tool bit for the dry cutting ceramic product is divided into a first cutting area, a second cutting area and a third cutting area, the raw materials of the first cutting area, the second cutting area and the third cutting area of the tool bit are selected, and the content of each raw material is optimized, so that the diamond saw blade for the dry cutting ceramic product has good mechanical properties such as hardness, tool bit abrasion ratio and the like, can enable the cutting surface of the cut ceramic to be smoother during cutting, has high cutting efficiency, is not easy to break edges, and has wide application prospect.
In order to solve the technical problems, the technical scheme provided by the invention is that the diamond saw blade for dry cutting the ceramic product comprises a substrate and a tool bit, wherein the tool bit comprises a first cutting area, a second cutting area and a third cutting area; the first cutting area comprises the following raw materials in parts by weight: 8-14 parts of polycrystalline diamond particles, 45-55 parts of iron powder, 26-32 parts of copper powder, 3-5 parts of zinc powder, 2-3 parts of tin powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 1.5-2.5 parts of titanium carbide powder and 0.5-0.9 part of lanthanum-nickel penta powder; the second cutting area comprises the following raw materials in parts by weight: 9-16 parts of polycrystalline diamond and boron carbide mixture particles, 42-48 parts of iron powder, 33-37 parts of copper powder, 3-4.5 parts of zinc powder, 2-3 parts of tin powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 1.5-3 parts of titanium carbide powder and 0.5-0.9 part of lanthanum-nickel penta powder; the third cutting area comprises the following raw materials in parts by weight: 10-15 parts of boron carbide particles, 50-55 parts of iron powder, 30-35 parts of copper powder, 2.5-4 parts of zinc powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 4-6.5 parts of titanium carbide powder and 0.6-1 part of lanthanum-nickel penta powder.
Preferably, the first cutting area comprises the following raw materials in parts by weight: 11 parts of polycrystalline diamond particles, 50 parts of iron powder, 31 parts of copper powder, 3.5 parts of zinc powder, 2.5 parts of tin powder, 2.2 parts of nickel powder, 3 parts of manganese powder, 2.3 parts of titanium carbide powder and 0.75 part of lanthanum-nickel penta powder; the second cutting area comprises the following raw materials in parts by weight: 14 parts of polycrystalline diamond and boron carbide mixture particles, 44 parts of iron powder, 36 parts of copper powder, 4 parts of zinc powder, 2.6 parts of tin powder, 2.5 parts of nickel powder, 3 parts of manganese powder, 2.5 parts of titanium carbide powder and 0.7 part of lanthanum-nickel-penta powder; the third cutting area comprises the following raw materials in parts by weight: 14 parts of boron carbide particles, 52 parts of iron powder, 32 parts of copper powder, 3.5 parts of zinc powder, 2.5 parts of nickel powder, 3.2 parts of manganese powder, 5.5 parts of titanium carbide powder and 0.85 part of lanthanum-nickel penta powder.
Preferably, the mass ratio of the polycrystalline diamond particles to the boron carbide particles in the polycrystalline diamond and boron carbide mixture particles is 1: (0.25-0.4).
Preferably, the polycrystalline diamond particles are 50-55-mesh polycrystalline diamond.
Preferably, the boron carbide particles are 60-65 boron carbide.
Preferably, the fineness of the iron powder, the copper powder, the zinc powder, the tin powder, the nickel powder, the manganese powder, the titanium carbide powder and the lanthanum-nickel powder is 100-200 meshes.
The invention also provides a preparation method of the diamond saw blade for dry cutting of the ceramic product, which comprises the following steps:
A. weighing the following raw materials in parts by weight: the first cutting area comprises 8-14 parts of polycrystalline diamond particles, 45-55 parts of iron powder, 26-32 parts of copper powder, 3-5 parts of zinc powder, 2-3 parts of tin powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 1.5-2.5 parts of titanium carbide powder and 0.5-0.9 part of lanthanum-nickel penta-powder, the second cutting area comprises 9-16 parts of polycrystalline diamond and boron carbide mixture particles, 42-48 parts of iron powder, 33-37 parts of copper powder, 3-4.5 parts of zinc powder, 2-3 parts of tin powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 1.5-3 parts of titanium carbide powder and 0.5-0.9 part of lanthanum-nickel penta-powder, the third cutting area comprises 10-15 parts of boron carbide particles, 50-55 parts of iron powder, 30-35 parts of copper powder, 2.5-4 parts of zinc powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 4 parts of titanium carbide powder, 4 parts of lanthanum powder and 1.5-6.6 parts of lanthanum powder;
B. respectively feeding the first cutting area raw material, the second cutting area raw material and the third cutting area raw material weighed in the step A into a gravity-free mixer, uniformly mixing the raw materials respectively, and discharging to obtain a first cutting area mixture, a second cutting area mixture and a third cutting area mixture;
C. c, cold press molding the first cutting area mixture, the second cutting area mixture and the third cutting area mixture obtained in the step B through a cold press mold to obtain a cutter head blank;
D. c, conveying the cutter head blank obtained in the step C into a vacuum sintering furnace, controlling the temperature rise speed to be 15-20 ℃/min, the sintering temperature to be 790-830 ℃, and the heat preservation time to be 6-10 min, sintering, then controlling the temperature reduction speed to be 20-25 ℃/min, reducing the temperature to be 450 ℃, then controlling the temperature rise speed to be 15-20 ℃/min, raising the temperature to be 650 ℃, preserving the heat for 1min, and then naturally cooling to obtain the cutter head;
E. and D, welding the tool bit obtained in the step D on a substrate through laser welding to obtain the diamond saw blade for the dry cutting ceramic product.
Preferably, the first cutting area comprises the following raw materials in parts by weight: 11 parts of polycrystalline diamond particles, 50 parts of iron powder, 31 parts of copper powder, 3.5 parts of zinc powder, 2.5 parts of tin powder, 2.2 parts of nickel powder, 3 parts of manganese powder, 2.3 parts of titanium carbide powder and 0.75 part of lanthanum-nickel penta powder; the second cutting area comprises the following raw materials in parts by weight: 14 parts of polycrystalline diamond and boron carbide mixture particles, 44 parts of iron powder, 36 parts of copper powder, 4 parts of zinc powder, 2.6 parts of tin powder, 2.5 parts of nickel powder, 3 parts of manganese powder, 2.5 parts of titanium carbide powder and 0.7 part of lanthanum-nickel-penta powder; the third cutting area comprises the following raw materials in parts by weight: 14 parts of boron carbide particles, 52 parts of iron powder, 32 parts of copper powder, 3.5 parts of zinc powder, 2.5 parts of nickel powder, 3.2 parts of manganese powder, 5.5 parts of titanium carbide powder and 0.85 part of lanthanum-nickel penta powder.
Preferably, the polycrystalline diamond particles are 50-55 meshes of polycrystalline diamond; the boron carbide particles are 60-65 of boron carbide; the mass ratio of polycrystalline diamond particles to boron carbide particles in the polycrystalline diamond and boron carbide mixture particles is 1: (0.25 to 0.4); the fineness of the iron powder, the copper powder, the zinc powder, the tin powder, the nickel powder, the manganese powder, the titanium carbide powder and the lanthanum-nickel-penta powder is 100-200 meshes.
Compared with the prior art, the invention is explained in detail as follows:
1. the diamond saw blade tool bit for the dry cutting ceramic product is divided into a first cutting area, a second cutting area and a third cutting area, the raw materials of the first cutting area, the second cutting area and the third cutting area of the tool bit are selected, and the content of each raw material is optimized, so that the diamond saw blade for the dry cutting ceramic product has good mechanical properties such as hardness, tool bit abrasion ratio and the like, can enable the cutting surface of the cut ceramic to be smoother during cutting, has high cutting efficiency, is not easy to break edges, and has wide application prospect.
2. According to the invention, the first cutting area adopts polycrystalline diamond particles, the second cutting area adopts polycrystalline diamond and boron carbide mixture particles, and the third cutting area adopts boron carbide particles, so that the mechanical property requirements of high hardness and the like can be met, and the cost can be saved; more importantly, 3 cutting areas are distinguished, and the surface roughness of the first cutting area, the second cutting area and the third cutting area is different, so that the hardness is different, the cut surface of the cut ceramic is smoother during cutting, the edge is not prone to collapse, the powder generated by cutting is easy to remove, and the cutting efficiency is higher.
3. According to the invention, the first cutting area and the second cutting area both adopt iron powder, copper powder, zinc powder, tin powder, nickel powder and manganese powder as binders, the third cutting area adopts iron powder, copper powder, zinc powder, nickel powder and manganese powder as binders, and the raw material components are well compatible by optimizing the proportion of the components, and polycrystalline diamond particles or polycrystalline diamond and boron carbide mixture particles are firmly embedded, so that the mechanical properties of the dry-cut ceramic product, such as the hardness of the diamond saw blade, the wear ratio of the tool bit and the like, are ensured.
4. According to the invention, titanium carbide powder with proper weight is introduced into the first cutting area, the second cutting area and the third cutting area, the compatibility among raw material components is good, polycrystalline diamond particles or polycrystalline diamond and boron carbide mixture particles or boron carbide mixture particles are firmly embedded, the cutting performance of the diamond saw blade for dry-cut ceramic products is improved, and the cut ceramic is not easy to break during cutting.
5. The first cutting area, the second cutting area and the third cutting area are all introduced with lanthanum nickel penta powder with proper weight parts, so that the mechanical properties of the diamond saw blade for dry cutting ceramic products, such as hardness, impact toughness, bending strength, tool bit wear ratio and the like, are further improved.
6. The invention adopts a vacuum sintering furnace for sintering, and controls the parameters of sintering process conditions to control and ensure the quality and performance of the diamond saw blade for dry cutting ceramic products.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with the specific examples, but it should be understood that the description is only for the purpose of further illustrating the features and advantages of the present invention and is not intended to limit the patent claims of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1, a diamond saw blade for dry cutting a ceramic product includes a base 1 and a tool tip 2, the tool tip 2 including a first cutting region 21, a second cutting region 22, and a third cutting region 23; the first cutting area 21 comprises the following raw materials in parts by weight: 8 parts of polycrystalline diamond particles, 45 parts of iron powder, 26 parts of copper powder, 3 parts of zinc powder, 2 parts of tin powder, 1.5 parts of nickel powder, 2 parts of manganese powder, 1.5 parts of titanium carbide powder and 0.5 part of lanthanum-nickel penta powder; the second cutting area 22 comprises the following raw materials in parts by weight: 9 parts of polycrystalline diamond and boron carbide mixture particles, 42 parts of iron powder, 33 parts of copper powder, 3 parts of zinc powder, 2 parts of tin powder, 1.5 parts of nickel powder, 2 parts of manganese powder, 1.5 parts of titanium carbide powder and 0.5 part of lanthanum-nickel penta powder; the third cutting area 23 comprises the following raw materials in parts by weight: 10 parts of boron carbide particles, 50 parts of iron powder, 30 parts of copper powder, 2.5 parts of zinc powder, 1.5 parts of nickel powder, 2 parts of manganese powder, 4 parts of titanium carbide powder and 0.6 part of lanthanum-nickel penta powder.
In this embodiment 1, the mass ratio of the polycrystalline diamond particles and the boron carbide particles in the polycrystalline diamond and boron carbide mixture particles is 1: 0.25.
in this embodiment 1, the polycrystalline diamond particles are 50 to 55-mesh polycrystalline diamond.
In the embodiment 1, the boron carbide particles are 60 to 65 boron carbide.
In this embodiment 1, the fineness of the iron powder, the copper powder, the zinc powder, the tin powder, the nickel powder, the manganese powder, the titanium carbide powder and the lanthanum-nickel powder is 100 to 200 meshes.
In this example 1, the method for manufacturing a diamond saw blade for dry cutting a ceramic article includes the following steps:
A. weighing the following raw materials in parts by weight:
B. respectively feeding the first cutting area raw material, the second cutting area raw material and the third cutting area raw material weighed in the step A into a gravity-free mixer, uniformly mixing the raw materials respectively, and discharging to obtain a first cutting area mixture, a second cutting area mixture and a third cutting area mixture;
C. c, cold press molding the first cutting area mixture, the second cutting area mixture and the third cutting area mixture obtained in the step B through a cold press mold to obtain a cutter head blank;
D. c, conveying the cutter head blank obtained in the step C into a vacuum sintering furnace, controlling the temperature rise speed to be 15 ℃/min, the sintering temperature to be 830 ℃, keeping the temperature for 6min, sintering, then controlling the temperature reduction speed to be 20 ℃/min, reducing the temperature to be 450 ℃, controlling the temperature rise speed to be 15 ℃/min, increasing the temperature to be 650 ℃, keeping the temperature for 1min, and then naturally cooling to obtain a cutter head 2;
E. and D, welding the tool bit 2 obtained in the step D on the substrate 1 through laser welding to obtain the diamond saw blade for the dry cutting ceramic product.
Example 2:
referring to fig. 1, a diamond saw blade for dry cutting a ceramic product includes a base 1 and a tool tip 2, the tool tip 2 including a first cutting region 21, a second cutting region 22, and a third cutting region 23; the first cutting area 21 comprises the following raw materials in parts by weight: 14 parts of polycrystalline diamond particles, 55 parts of iron powder, 32 parts of copper powder, 5 parts of zinc powder, 3 parts of tin powder, 3 parts of nickel powder, 4 parts of manganese powder, 2.5 parts of titanium carbide powder and 0.9 part of lanthanum-nickel penta powder; the second cutting area 22 comprises the following raw materials in parts by weight: 16 parts of polycrystalline diamond and boron carbide mixture particles, 48 parts of iron powder, 37 parts of copper powder, 4.5 parts of zinc powder, 3 parts of tin powder, 3 parts of nickel powder, 4 parts of manganese powder, 3 parts of titanium carbide powder and 0.9 part of lanthanum-nickel penta powder; the third cutting area 23 comprises the following raw materials in parts by weight: 15 parts of boron carbide particles, 55 parts of iron powder, 35 parts of copper powder, 4 parts of zinc powder, 3 parts of nickel powder, 4 parts of manganese powder, 6.5 parts of titanium carbide powder and 1 part of lanthanum-nickel-penta powder.
In this embodiment 2, the mass ratio of the polycrystalline diamond particles and the boron carbide particles in the polycrystalline diamond and boron carbide mixture particles is 1: 0.4.
in this embodiment 2, the polycrystalline diamond particles are 50 to 55-mesh polycrystalline diamond.
In the embodiment 2, the boron carbide particles are 60 to 65 boron carbide.
In this embodiment 2, the fineness of the iron powder, the copper powder, the zinc powder, the tin powder, the nickel powder, the manganese powder, the titanium carbide powder and the lanthanum-nickel powder is 100 to 200 meshes.
In this example 2, the method for manufacturing a diamond saw blade for dry cutting a ceramic article includes the following steps:
A. weighing the raw materials in parts by weight;
B. respectively feeding the first cutting area raw material, the second cutting area raw material and the third cutting area raw material weighed in the step A into a gravity-free mixer, uniformly mixing the raw materials respectively, and discharging to obtain a first cutting area mixture, a second cutting area mixture and a third cutting area mixture;
C. c, cold press molding the first cutting area mixture, the second cutting area mixture and the third cutting area mixture obtained in the step B through a cold press mold to obtain a cutter head blank;
D. c, conveying the cutter head blank obtained in the step C into a vacuum sintering furnace, controlling the temperature rise speed to be 20 ℃/min, the sintering temperature to be 790 ℃, keeping the temperature for 10min, sintering, then controlling the temperature reduction speed to be 25 ℃/min, reducing the temperature to be 450 ℃, controlling the temperature rise speed to be 20 ℃/min, raising the temperature to be 650 ℃, keeping the temperature for 1min, and then naturally cooling to obtain a cutter head 2;
E. and D, welding the tool bit 2 obtained in the step D on the substrate 1 through laser welding to obtain the diamond saw blade for the dry cutting ceramic product.
Example 3:
a diamond saw blade for dry cutting a ceramic product, comprising a base body 1 and a tool tip 2, referring to FIG. 1, the tool tip 2 comprising a first cutting zone 21, a second cutting zone 22 and a third cutting zone 23; the first cutting area 21 comprises the following raw materials in parts by weight: 11 parts of polycrystalline diamond particles, 50 parts of iron powder, 31 parts of copper powder, 3.5 parts of zinc powder, 2.5 parts of tin powder, 2.2 parts of nickel powder, 3 parts of manganese powder, 2.3 parts of titanium carbide powder and 0.75 part of lanthanum-nickel penta powder; the second cutting area 22 comprises the following raw materials in parts by weight: 14 parts of polycrystalline diamond and boron carbide mixture particles, 44 parts of iron powder, 36 parts of copper powder, 4 parts of zinc powder, 2.6 parts of tin powder, 2.5 parts of nickel powder, 3 parts of manganese powder, 2.5 parts of titanium carbide powder and 0.7 part of lanthanum-nickel-penta powder; the third cutting area 23 comprises the following raw materials in parts by weight: 14 parts of boron carbide particles, 52 parts of iron powder, 32 parts of copper powder, 3.5 parts of zinc powder, 2.5 parts of nickel powder, 3.2 parts of manganese powder, 5.5 parts of titanium carbide powder and 0.85 part of lanthanum-nickel penta powder.
In this embodiment 3, the mass ratio of the polycrystalline diamond particles and the boron carbide particles in the polycrystalline diamond and boron carbide mixture particles is 1: 0.35.
in this embodiment 3, the polycrystalline diamond particles are 50 to 55-mesh polycrystalline diamond.
In embodiment 3, the boron carbide particles are 60 to 65 boron carbide.
In this embodiment 3, the fineness of the iron powder, the copper powder, the zinc powder, the tin powder, the nickel powder, the manganese powder, the titanium carbide powder and the lanthanum-nickel powder is 100 to 200 meshes.
In this example 3, the method for manufacturing a diamond saw blade for dry cutting a ceramic article includes the following steps:
A. weighing the raw materials in parts by weight;
B. respectively feeding the first cutting area raw material, the second cutting area raw material and the third cutting area raw material weighed in the step A into a gravity-free mixer, uniformly mixing the raw materials respectively, and discharging to obtain a first cutting area mixture, a second cutting area mixture and a third cutting area mixture;
C. c, cold press molding the first cutting area mixture, the second cutting area mixture and the third cutting area mixture obtained in the step B through a cold press mold to obtain a cutter head blank;
D. c, conveying the cutter head blank obtained in the step C into a vacuum sintering furnace, controlling the temperature rise speed to be 18 ℃/min, the sintering temperature to be 810 ℃, keeping the temperature for 8min, sintering, then controlling the temperature reduction speed to be 22 ℃/min, reducing the temperature to be 450 ℃, then controlling the temperature rise speed to be 17 ℃/min, raising the temperature to be 650 ℃, keeping the temperature for 1min, and then naturally cooling to obtain a cutter head 2;
E. and D, welding the tool bit 2 obtained in the step D on the substrate 1 through laser welding to obtain the diamond saw blade for the dry cutting ceramic product.
The diamond saw blades for dry cutting ceramic products obtained in examples 1 to 3 were tested, and the diamond saw blades for dry cutting ceramic products obtained in examples 1 to 3 and the existing diamond saw blades for dry cutting ceramic products had the same size and shape, and had the same tool bit thickness of 1.8 mm; wherein, the hardness test is referred to standard GB/T230.1-2009; the tool bit wear ratio is tested according to JB-T3235-1999; cutting the blocky ceramic at a cutting speed by adopting a cutting machine with output power of 2500W and at a constant pressure, wherein the cutting depth is 5 mm; the results are shown in Table 1.
Note: the hardness and tool tip wear ratio test results in table 1 are the average of the first, second and third cutting zones.
As can be seen from the above table, the diamond saw blade for dry cutting ceramic products of the invention has high hardness; the cutter head has large abrasion ratio, good wear resistance, average cutting speed and high cutting efficiency.
The diamond saw blade for dry cutting of ceramic products has the following advantages:
1. the diamond saw blade tool bit for the dry cutting ceramic product is divided into a first cutting area, a second cutting area and a third cutting area, the raw materials of the first cutting area, the second cutting area and the third cutting area of the tool bit are selected, and the content of each raw material is optimized, so that the diamond saw blade for the dry cutting ceramic product has good mechanical properties such as hardness, tool bit abrasion ratio and the like, can enable the cutting surface of the cut ceramic to be smoother during cutting, is not easy to edge collapse, and has wide application prospect.
2. According to the invention, the first cutting area adopts polycrystalline diamond particles, the second cutting area adopts polycrystalline diamond and boron carbide mixture particles, and the third cutting area adopts boron carbide particles, so that the mechanical property requirements of high hardness and the like can be met, and the cost can be saved; more importantly, 3 cutting areas are distinguished, the surface roughness is different, the hardness is different, the cut surface of the cut ceramic is smoother when the ceramic is cut, the edge is not prone to collapse, powder generated by cutting is easy to remove, and the cutting efficiency is higher.
3. According to the invention, the first cutting area and the second cutting area both adopt iron powder, copper powder, zinc powder, tin powder, nickel powder and manganese powder as binders, the third cutting area adopts iron powder, copper powder, zinc powder, nickel powder and manganese powder as binders, and the raw material components are well compatible by optimizing the proportion of the components, and polycrystalline diamond particles or polycrystalline diamond and boron carbide mixture particles are firmly embedded, so that the mechanical properties of the dry-cut ceramic product, such as the hardness of the diamond saw blade, the wear ratio of the tool bit and the like, are ensured.
4. According to the invention, titanium carbide powder with proper weight is introduced into the first cutting area, the second cutting area and the third cutting area, the compatibility among raw material components is good, polycrystalline diamond particles or polycrystalline diamond and boron carbide mixture particles or boron carbide mixture particles are firmly embedded, the cutting performance of the diamond saw blade for dry-cut ceramic products is improved, and the cut ceramic is not easy to break during cutting.
5. The first cutting area, the second cutting area and the third cutting area are all introduced with lanthanum nickel penta powder with proper weight parts, so that the mechanical properties of the diamond saw blade for dry cutting ceramic products, such as hardness, impact toughness, bending strength, tool bit wear ratio and the like, are further improved.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (9)
1. A diamond saw blade for dry cutting of ceramic products comprises a substrate and a tool bit, and is characterized in that the tool bit comprises a first cutting area, a second cutting area and a third cutting area which are sequentially connected end to end along the circumferential direction; the first cutting area comprises the following raw materials in parts by weight: 8-14 parts of polycrystalline diamond particles, 45-55 parts of iron powder, 26-32 parts of copper powder, 3-5 parts of zinc powder, 2-3 parts of tin powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 1.5-2.5 parts of titanium carbide powder and 0.5-0.9 part of lanthanum-nickel penta powder; the second cutting area comprises the following raw materials in parts by weight: 9-16 parts of polycrystalline diamond and boron carbide mixture particles, 42-48 parts of iron powder, 33-37 parts of copper powder, 3-4.5 parts of zinc powder, 2-3 parts of tin powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 1.5-3 parts of titanium carbide powder and 0.5-0.9 part of lanthanum-nickel penta powder; the third cutting area comprises the following raw materials in parts by weight: 10-15 parts of boron carbide particles, 50-55 parts of iron powder, 30-35 parts of copper powder, 2.5-4 parts of zinc powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 4-6.5 parts of titanium carbide powder and 0.6-1 part of lanthanum-nickel penta powder.
2. The diamond saw blade for dry cutting of ceramic products according to claim 1, wherein the first cutting zone comprises the following raw materials in parts by weight: 11 parts of polycrystalline diamond particles, 50 parts of iron powder, 31 parts of copper powder, 3.5 parts of zinc powder, 2.5 parts of tin powder, 2.2 parts of nickel powder, 3 parts of manganese powder, 2.3 parts of titanium carbide powder and 0.75 part of lanthanum-nickel penta powder; the second cutting area comprises the following raw materials in parts by weight: 14 parts of polycrystalline diamond and boron carbide mixture particles, 44 parts of iron powder, 36 parts of copper powder, 4 parts of zinc powder, 2.6 parts of tin powder, 2.5 parts of nickel powder, 3 parts of manganese powder, 2.5 parts of titanium carbide powder and 0.7 part of lanthanum-nickel-penta powder; the third cutting area comprises the following raw materials in parts by weight: 14 parts of boron carbide particles, 52 parts of iron powder, 32 parts of copper powder, 3.5 parts of zinc powder, 2.5 parts of nickel powder, 3.2 parts of manganese powder, 5.5 parts of titanium carbide powder and 0.85 part of lanthanum-nickel penta powder.
3. The diamond saw blade for dry cutting of ceramic products according to claim 1, wherein the mass ratio of the polycrystalline diamond particles and the boron carbide particles in the polycrystalline diamond and boron carbide mixture particles is 1: (0.25-0.4).
4. A diamond saw blade for dry cutting of ceramics according to claim 1 or 3, wherein the polycrystalline diamond particles are 50 to 55 mesh polycrystalline diamond.
5. The diamond saw blade for dry-cutting ceramic products according to claim 1 or 3, wherein the boron carbide particles are 60 to 65 boron carbide.
6. The diamond saw blade for dry cutting of ceramic products as claimed in claim 1, wherein the fineness of each of the iron powder, the copper powder, the zinc powder, the tin powder, the nickel powder, the manganese powder, the titanium carbide powder and the lanthanum nickel powder is 100-200 mesh.
7. A preparation method of a diamond saw blade for dry cutting of ceramic products is characterized by comprising the following steps:
weighing the following raw materials in parts by weight: the first cutting area comprises 8-14 parts of polycrystalline diamond particles, 45-55 parts of iron powder, 26-32 parts of copper powder, 3-5 parts of zinc powder, 2-3 parts of tin powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 1.5-2.5 parts of titanium carbide powder and 0.5-0.9 part of lanthanum-nickel penta-powder, the second cutting area comprises 9-16 parts of polycrystalline diamond and boron carbide mixture particles, 42-48 parts of iron powder, 33-37 parts of copper powder, 3-4.5 parts of zinc powder, 2-3 parts of tin powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 1.5-3 parts of titanium carbide powder and 0.5-0.9 part of lanthanum-nickel penta-powder, the third cutting area comprises 10-15 parts of boron carbide particles, 50-55 parts of iron powder, 30-35 parts of copper powder, 2.5-4 parts of zinc powder, 1.5-3 parts of nickel powder, 2-4 parts of manganese powder, 4 parts of titanium carbide powder, 4 parts of lanthanum powder and 1.5-6.6 parts of lanthanum powder;
respectively feeding the first cutting area raw material, the second cutting area raw material and the third cutting area raw material weighed in the step A into a gravity-free mixer, uniformly mixing the raw materials respectively, and discharging to obtain a first cutting area mixture, a second cutting area mixture and a third cutting area mixture;
c, cold press molding the first cutting area mixture, the second cutting area mixture and the third cutting area mixture obtained in the step B through a cold press mold, wherein the first cutting area mixture, the second cutting area mixture and the third cutting area mixture are sequentially connected end to end along the circumferential direction to prepare a cutter head blank;
c, conveying the cutter head blank obtained in the step C into a vacuum sintering furnace, controlling the temperature rise speed to be 15-20 ℃/min, the sintering temperature to be 790-830 ℃, and the heat preservation time to be 6-10 min, sintering, then controlling the temperature reduction speed to be 20-25 ℃/min, reducing the temperature to be 450 ℃, then controlling the temperature rise speed to be 15-20 ℃/min, raising the temperature to be 650 ℃, preserving the heat for 1min, and then naturally cooling to obtain the cutter head;
and D, welding the tool bit obtained in the step D on a substrate through laser welding to obtain the diamond saw blade for the dry cutting ceramic product.
8. The method of manufacturing a diamond saw blade for dry cutting a ceramic according to claim 7, wherein the first cutting zone comprises the following raw materials in parts by weight: 11 parts of polycrystalline diamond particles, 50 parts of iron powder, 31 parts of copper powder, 3.5 parts of zinc powder, 2.5 parts of tin powder, 2.2 parts of nickel powder, 3 parts of manganese powder, 2.3 parts of titanium carbide powder and 0.75 part of lanthanum-nickel penta powder; the second cutting area comprises the following raw materials in parts by weight: 14 parts of polycrystalline diamond and boron carbide mixture particles, 44 parts of iron powder, 36 parts of copper powder, 4 parts of zinc powder, 2.6 parts of tin powder, 2.5 parts of nickel powder, 3 parts of manganese powder, 2.5 parts of titanium carbide powder and 0.7 part of lanthanum-nickel-penta powder; the third cutting area comprises the following raw materials in parts by weight: 14 parts of boron carbide particles, 52 parts of iron powder, 32 parts of copper powder, 3.5 parts of zinc powder, 2.5 parts of nickel powder, 3.2 parts of manganese powder, 5.5 parts of titanium carbide powder and 0.85 part of lanthanum-nickel penta powder.
9. The method for manufacturing a diamond saw blade for dry-cutting a ceramic product according to claim 7 or 8, wherein the polycrystalline diamond particles are 50-55 mesh polycrystalline diamond; the boron carbide particles are 60-65 of boron carbide; the mass ratio of polycrystalline diamond particles to boron carbide particles in the polycrystalline diamond and boron carbide mixture particles is 1: (0.25 to 0.4); the fineness of the iron powder, the copper powder, the zinc powder, the tin powder, the nickel powder, the manganese powder, the titanium carbide powder and the lanthanum-nickel-penta powder is 100-200 meshes.
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