CN108913971B - Ultrathin herringbone ceramic corrugated sheet and preparation method thereof - Google Patents
Ultrathin herringbone ceramic corrugated sheet and preparation method thereof Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims description 9
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 71
- 239000010432 diamond Substances 0.000 claims abstract description 71
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 65
- 239000010959 steel Substances 0.000 claims abstract description 65
- 238000005520 cutting process Methods 0.000 claims abstract description 40
- 239000011159 matrix material Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000005245 sintering Methods 0.000 claims abstract description 27
- 238000000227 grinding Methods 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims description 76
- 239000000956 alloy Substances 0.000 claims description 45
- 229910045601 alloy Inorganic materials 0.000 claims description 45
- 239000002245 particle Substances 0.000 claims description 33
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 17
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 15
- 238000009792 diffusion process Methods 0.000 claims description 15
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 12
- 238000007731 hot pressing Methods 0.000 claims description 12
- 239000012778 molding material Substances 0.000 claims description 12
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
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- 239000011521 glass Substances 0.000 abstract description 4
- 238000009966 trimming Methods 0.000 abstract description 4
- 238000005498 polishing Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 11
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
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- B22F1/0003—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
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Abstract
The invention relates to an ultrathin herringbone ceramic corrugated sheet, and belongs to the technical field of diamond sintering tools. The ultrathin herringbone ceramic corrugated sheet comprises a circular steel base body, wherein the outer edge of the circular steel base body is sintered to form a circular diamond cutter head; the thickness of the circular diamond tool bit is less than 2.2 mm; a herringbone convex pattern and a water drop-shaped convex pattern connected with the herringbone convex pattern are formed on the surface of the circular diamond tool bit from outside to inside, the opening of the herringbone convex pattern faces the center of the circular steel matrix, and the tip of the water drop-shaped convex pattern faces the center of the circular steel matrix. The ultrathin herringbone ceramic corrugated sheet is arranged on a portable cutting machine or a special angle grinder, and can be used for cutting, grinding and trimming ceramics, ceramic tiles, vitrified tiles and glass; and can realize multiple applications such as dry cutting, water cutting, polishing and trimming.
Description
Technical Field
The invention relates to the technical field of diamond sintering tools, in particular to an ultrathin herringbone ceramic corrugated sheet and a preparation method thereof.
Background
The diamond saw blade is a cutting tool, and is widely applied to processing of hard and brittle materials such as concrete, refractory materials, stone materials, ceramics and the like. After the 30's of the 20 th century, as the powder metallurgy technology became mature, the powder metallurgy technology began to be applied to the production of diamond circular saw blades, and metal powder and diamond particles were mixed and sintered into sector-shaped saw teeth, and then the saw teeth were welded to a steel substrate by a welding method, which was the earliest diamond circular saw blade. With the development and maturity of the artificial diamond technology, the rate of the diamond saw blade in the 60 th century is popularized and applied in developed countries in Europe and America and industrialization is rapidly realized. In the 70 s, japan gained a competitive advantage with its relatively low manufacturing cost, and was rapidly becoming one of the leaders in the diamond tool manufacturing industry. Since the 80 s, along with the development of stone processing and ceramic industry, the diamond saw blade industry in China also rapidly develops from beginning to grow, a large number of diamond circular saw blade manufacturers are emerged, the annual output value exceeds the scale of billions of yuan, and the diamond circular saw blade industry becomes one of the main supply countries of the international diamond market.
In recent years, with the improvement of the manufacturing level and the equipment technology of ceramic tiles, ceramics and the like, in order to reduce energy consumption and labor cost, the production efficiency is higher and higher, and the performance requirements of domestic and foreign users on the diamond saw blade are higher and higher. In order to improve the cutting and grinding efficiency, in the prior art, a diamond saw blade is generally used for cutting and grinding products such as ceramic tiles, ceramics and the like instead of a grinding wheel, and CN2576396Y discloses a diamond grooving sheet with a V-shaped cutter head to improve the sharpness of the diamond grooving sheet; in addition, the prior art also discloses diamond cutting blades with corrugated water channels to improve their cutting efficiency. However, the diamond saw blade or the dry blade has high cutting efficiency and cutting stability.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention aims to provide an ultrathin herringbone ceramic corrugated sheet and a preparation method thereof.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
the ultrathin herringbone ceramic corrugated sheet comprises a circular steel base body, wherein the outer edge of the circular steel base body is sintered to form a circular diamond cutter head; the method is characterized in that: the thickness of the circular diamond tool bit is less than 2.2 mm; a herringbone protruding pattern and a water drop-shaped protruding pattern connected with the herringbone protruding pattern are formed on the surface of the circular diamond tool bit from outside to inside, the opening of the herringbone protruding pattern faces the center of the circular steel base body, and the tip of the water drop-shaped protruding pattern faces the center of the circular steel base body.
The herringbone protruding patterns are 4-6 mm in height, the water drop-shaped protruding patterns are 4-6 mm in height, and the thickness of the herringbone protruding patterns and the thickness of the water drop-shaped protruding patterns are 0.05-0.20 mm.
The circular diamond cutter head is formed by mixing matrix powder and diamond particles, cold press molding and hot press sintering; the matrix powder comprises 14-16 wt% of EX608 alloy powder, 8-12 wt% of FAM1010 alloy powder, 15-18 wt% of copper-tin diffusion alloy powder, 9-12 wt% of tin powder, 3-5 wt% of ferrophosphorus powder, 4-6 wt% of nickel powder, 4-6 wt% of cobalt powder and 35-40 wt% ofCopper powder; the concentration of the diamond particles is 0.4-0.6ct/cm3。
Wherein the EX608 alloy powder is composed of 35.0 wt% of Cu, 7.9 wt% of Sn, 12.1 wt% of Ni, 0.8 wt% of Ti, and the balance of Fe and unavoidable impurities, and the Fischer-Tropsch type particle size of the EX608 alloy powder is 6.0-8.0 [ mu ] m.
The FAM1010 alloy powder consists of 17.6 wt% of Ni, 2.1 wt% of Co and the balance of Fe and inevitable impurities, and the Fisher's particle size of the FAM1010 alloy powder is 3.0-4.5 mu m.
The copper-tin diffusion alloy powder consists of 15.0 wt% of Sn and 85.0 wt% of Cu, and the Fisher particle size of the copper-tin diffusion alloy powder is 6.0-8.0 mu m.
Wherein the ferrophosphorus powder comprises 26.0-28.0 wt% of P, 0.10-1.0 wt% of Si, 0.10-2.0 wt% of Mn, 0.10-2.0 wt% of Ti, and the balance of Fe and inevitable impurities.
The second aspect of the invention also relates to a preparation method of the ultrathin herringbone ceramic corrugated sheet.
The preparation method comprises the following steps:
(1) preparing materials: premixing the matrix powder and the diamond particles by a three-dimensional mixer to prepare a molding material;
(2) cold pressing: installing a circular steel base body in a tool die, putting the forming material, then assembling the circular steel base body into a cold press forming steel die, and pressurizing to obtain a cutting and grinding blank comprising a circular diamond tool bit blank, wherein herringbone-shaped convex patterns and water drop-shaped convex patterns connected with the herringbone-shaped convex patterns are formed on the surface of the circular diamond tool bit blank from outside to inside, the openings of the herringbone-shaped convex patterns face the center of the circular steel base body, and the tips of the water drop-shaped convex patterns face the center of the circular steel base body;
(3) hot-pressing and sintering: and (3) carrying out pressure sintering on the cold-pressed cutting and grinding sheet blank under the condition of protective gas, wherein the hot-pressing sintering temperature is 730-760 ℃, and the pressure is 10-25 MPa.
Wherein the matrix powder comprises 14-16 wt% of EX608 alloy powder and 8-12 wt% ofThe alloy comprises, by weight, FAM1010 alloy powder, 15-18% copper-tin diffusion alloy powder, 9-12% tin powder, 3-5% ferrophosphorus powder, 4-6% nickel powder, 4-6% cobalt powder and 35-40% copper powder; the concentration of the diamond particles is 0.4-0.6ct/cm3。
Compared with the prior art, the ultrathin herringbone ceramic corrugated sheet has the following beneficial effects:
the ultrathin herringbone ceramic corrugated sheet is arranged on a portable cutting machine or a special angle grinder, and can be used for cutting, grinding and trimming ceramics, ceramic tiles, vitrified tiles and glass; and can realize multiple applications such as dry cutting, water cutting, polishing and trimming.
Drawings
FIG. 1 is a front view of an ultra-thin herringbone ceramic corrugated sheet of the present invention.
Fig. 2 is a schematic sectional view taken along a-a of fig. 1.
Fig. 3 is an enlarged schematic view of a portion indicated by a circle portion in fig. 2.
FIG. 4 is a schematic perspective view of an ultrathin herringbone ceramic corrugated sheet according to the present invention.
FIG. 5 is a graph showing the relationship between the cutting speed and the cutting distance in examples 1 and comparative examples 1 to 3.
FIG. 6 is a graph showing the relationship between the cutting speed and the cutting distance in examples 2 and comparative examples 4 to 5.
Detailed Description
The ultra-thin herringbone ceramic corrugated sheet and the preparation method thereof according to the present invention will be further described with reference to specific examples to help those skilled in the art to have a more complete, accurate and thorough understanding of the inventive concept and technical solution of the present invention.
As shown in figures 1-2, the invention relates to an ultrathin herringbone ceramic corrugated sheet, which comprises a circular steel base body 10, wherein a circular diamond tool bit 20 is formed on the outer edge of the circular steel base body 10 through sintering. The center of the circular steel base 10 is provided with a mounting hole 11, the mounting hole 11 is used for mounting with a working rotating shaft (such as an output shaft of a manual cutting machine), and a plurality of heat dissipation holes 12 can be further processed on the periphery of the circular steel base 10. Since the thickness of the circular steel substrate 10 is only about 1.0 to 1.5mm, the steel reinforcing sheets 30 may be generally resistance welded to the upper and lower surfaces of the circular steel substrate 10 during use. As shown in fig. 3, a flange 13 is formed on the outer edge of the circular steel substrate 10 for reinforcing the connection with the circular diamond tool bit 20, as shown in fig. 1 and 4, herringbone-shaped convex patterns and drop-shaped convex patterns connected with the herringbone-shaped convex patterns are formed on the surface of the circular diamond tool bit from outside to inside, the openings of the herringbone-shaped convex patterns face the center of the circular steel substrate, and the tips of the drop-shaped convex patterns face the center of the circular steel substrate Cutting stability of ceramics, vitrified tiles and the like. In the present invention, the size (diameter) of the circular steel substrate may be designed according to actual needs without limitation, for example, the size may be generally 100 to 500mm, and the common specification may be, for example, 105, 110, 115, 125, 150, 180, 200, 230, 250, 300, 350, 400, 450, 500, and the like. Preferably, the thickness of the circular ring-shaped diamond tip is 1.5 to 2.0mm, and the height of the circular ring-shaped diamond tip is 8 to 12mm, and the height of the herringbone-shaped protrusion pattern is 4 to 6mm, the height of the drop-shaped protrusion pattern is 4 to 6mm, and the thickness of the herringbone-shaped protrusion pattern and the drop-shaped protrusion pattern is 0.05 to 0.20 mm.
The circular diamond tool bit is formed by mixing, cold press molding and hot press sintering of matrix powder and diamond particles; the matrix powder consists of 14-16 wt% of EX608 alloy powder, 8-12 wt% of FAM1010 alloy powder, 15-18 wt% of copper-tin diffusion alloy powder, 9-12 wt% of tin powder, 3-5 wt% of ferrophosphorus powder, 4-6 wt% of nickel powder, 4-6 wt% of cobalt powder and 35-40 wt% of copper powder; the concentration of the diamond particles is 0.4 to0.6ct/cm3For cutting of ceramic tiles, ceramics, vitrified tiles, glass and the like, diamond particles of size 60/70 and/or 70/80 are preferably used. The EX608 alloy powder is composed of 35.0 wt% of Cu, 7.9 wt% of Sn, 12.1 wt% of Ni, 0.8 wt% of Ti, and the balance of Fe and inevitable impurities, and the Fischer-Tropsch type particle size of the EX608 alloy powder is 6.0-8.0 [ mu ] m. The FAM1010 alloy powder consists of 17.6 wt% of Ni, 2.1 wt% of Co, the balance of Fe and inevitable impurities, and the Fisher's particle size of the FAM1010 alloy powder is 3.0-4.5 mu m. The copper-tin diffusion alloy powder consists of 15.0 wt% of Sn and 85.0 wt% of Cu, and the Fisher grain size of the copper-tin diffusion alloy powder is 6.0-8.0 mu m. The ferrophosphorus powder comprises 26.0-28.0 wt% of P, 0.10-1.0 wt% of Si, 0.10-2.0 wt% of Mn, 0.10-2.0 wt% of Ti, and the balance of Fe and inevitable impurities. The rest of the tin powder, the nickel powder, the cobalt powder and the copper powder can adopt conventional powder sold in the market, for example, the tin powder can adopt atomized tin powder with the average particle size of 10-15 mu m, carbonyl nickel powder with the average particle size of 8-15 mu m, reduced cobalt powder with the average particle size of 10-25 mu m and atomized copper powder with the average particle size of 10-30 mu m. The tire body powder of the invention has less Co content, and the good holding force between the hot-pressed sintered tire body and the diamond particles is ensured by adopting the mixture of the EX608 alloy powder, the FAM1010 alloy powder, the copper-tin diffusion alloy powder and the ferrophosphorus powder and the conventional tin powder, nickel powder, cobalt powder and copper powder, and the tire body has moderate hardness, has tire body abrasion performance matched with the high-speed cutting and edging operations of ceramic tiles, ceramics, vitrified tiles, glass and the like, can ensure the cutting and good sharpness, can ensure the self-sharpening of the diamond particles, has good operation stability and ensures good service performance.
The preparation process of the ultrathin herringbone ceramic corrugated sheet generally comprises the following process flows of: diamond burdening, powder loading and cold pressing, hot pressing and sintering, punching and butt welding, tempering and leveling, sheet scraping and reaming, paint spraying and edging. The method specifically comprises the following process steps:
1) proportioning diamond and a metal binder: preparing matrix powder and diamond particles with diamond concentration of 0.4-0.6ct/cm3Diamond, diamondThe particle sizes are 60/70 and 70/80 (for example, 50 percent of each), molding materials are prepared by premixing, and the molding materials are obtained by uniformly mixing by using a three-dimensional mixer.
2) Cold pressing: and adjusting a tool die, placing a circular steel matrix and a molding material, assembling the circular steel matrix and the molding material into a cold press molding steel die, and pressing and molding to obtain a cutting and grinding blank, wherein the steel matrix is the circular steel matrix, and 65Mn can be selected for example. A herringbone protruding pattern and a water drop-shaped protruding pattern connected with the herringbone protruding pattern are formed on the surface of the circular diamond tool bit from outside to inside, the opening of the herringbone protruding pattern faces the center of the circular steel base body, and the tip of the water drop-shaped protruding pattern faces the center of the circular steel base body.
3) Hot-pressing and sintering: and assembling the cold-pressed cutting and grinding sheet blank in a hot-pressing steel die, and performing pressure sintering in a protective gas environment to obtain the corrugated sheet.
4) Punching and butt-welding: punching the central hole of the corrugated sheet after hot pressing sintering into a required standard hole, positioning the central hole on a clamp of a butt welding machine, firstly placing a steel reinforcing sheet, then placing a hot-pressed corrugated sheet, finally placing a steel reinforcing sheet, starting a machine, and welding.
5) Tempering and leveling: and (3) alternately assembling the assembled corrugated sheets and the graphite core plates into a sintering furnace, and tempering (at the temperature of 500-600 ℃ and keeping the temperature for 2.5 hours) in an environment protected by reducing atmosphere.
6) Wiping, punching, spraying paint and edging: descaling, punching flange holes, processing into required size according to process requirements, and then spraying paint and edging.
The ultra-thin ceramic corrugated sheets prepared in the following examples and comparative examples had a circular steel substrate diameter of 300mm and a thickness of 1.2mm, and a circular diamond segment height of 10mm and a thickness of 1.8 mm.
Example 1
Adding the matrix powder and the diamond particles into a three-dimensional mixer according to the proportion, mixing for 120 minutes, and premixing to prepare a molding material, wherein the concentration of the diamond particles is 0.5ct/cm3The particle sizes are 60/70 and 70/80 each at 50 wt%. The matrix powder contains1.4kg of EX608 alloy powder, 1.0kg of FAM1010 alloy powder, 1.6kg of copper-tin diffusion alloy powder, 1.0kg of tin powder, 0.42kg of ferrophosphorus powder, 0.51kg of nickel powder, 0.42kg of cobalt powder, and 3.65kg of copper powder. And adjusting a tooling die, placing the circular steel matrix and the molding material, assembling the circular steel matrix and the molding material into a cold press molding steel die with patterns, and pressing and molding to obtain a cutting and grinding sheet blank, wherein the steel matrix is 65 Mn. A herringbone protruding pattern and a water drop protruding pattern connected with the herringbone protruding pattern are formed on the surface of the circular diamond cutter head from outside to inside, the opening of the herringbone protruding pattern faces the center of the circular steel base body, the tip of the water drop protruding pattern faces the center of the circular steel base body, the heights of the herringbone protruding pattern and the water drop protruding pattern are both 5mm, and the thicknesses of the herringbone protruding pattern and the water drop protruding pattern are 0.10 mm. Assembling the cold-pressed cutting and grinding blank in a hot-pressing steel die in a state of N2And carrying out pressure sintering in the atmosphere, wherein the sintering temperature is 750 ℃, and the pressure is 20 MPa. Punching the central hole of the corrugated sheet after hot pressing sintering into a required standard hole, positioning the central hole on a clamp of a butt welding machine, firstly placing a steel reinforcing sheet, then placing a hot-pressed corrugated sheet, finally placing a steel reinforcing sheet, starting a machine, and welding. And (3) alternately assembling the assembled corrugated sheets and the graphite core plates into a sintering furnace, sintering at the temperature of 600 ℃ in a hydrogen protective atmosphere, preserving heat for 2.5 hours, and tempering and leveling. Descaling, punching flange holes, painting and edging.
Example 2
Adding the matrix powder and the diamond particles into a three-dimensional mixer according to the proportion, mixing for 120 minutes, and premixing to prepare a molding material, wherein the concentration of the diamond particles is 0.5ct/cm3The particle sizes are 60/70 and 70/80 each at 50 wt%. The matrix powder contained 1.6kg of EX608 alloy powder, 1.0kg of FAM1010 alloy powder, 1.5kg of copper-tin diffusion alloy powder, 0.9kg of tin powder, 0.45kg of ferrophosphorus powder, 0.43kg of nickel powder, 0.42kg of cobalt powder, and 3.70kg of copper powder. And adjusting a tooling die, placing the circular steel matrix and the molding material, assembling the circular steel matrix and the molding material into a cold press molding steel die with patterns, and pressing and molding to obtain a cutting and grinding sheet blank, wherein the steel matrix is 65 Mn. Circular ring shaped diamondA herringbone protruding pattern and a water drop protruding pattern connected with the herringbone protruding pattern are formed on the surface of the cutter head from outside to inside, the opening of the herringbone protruding pattern faces the center of the circular steel base body, the tip of the water drop protruding pattern faces the center of the circular steel base body, the heights of the herringbone protruding pattern and the water drop protruding pattern are both 5mm, and the thicknesses of the herringbone protruding pattern and the water drop protruding pattern are 0.10 mm. Assembling the cold-pressed cutting and grinding blank in a hot-pressing steel die in a state of N2And carrying out pressure sintering in the atmosphere, wherein the sintering temperature is 750 ℃, and the pressure is 20 MPa. Punching the central hole of the corrugated sheet after hot pressing sintering into a required standard hole, positioning the central hole on a clamp of a butt welding machine, firstly placing a steel reinforcing sheet, then placing a hot-pressed corrugated sheet, finally placing a steel reinforcing sheet, starting a machine, and welding. And (3) alternately assembling the assembled corrugated sheets and the graphite core plates into a sintering furnace, sintering at the temperature of 600 ℃ in a hydrogen protective atmosphere, preserving heat for 2.5 hours, and tempering and leveling. Descaling, punching flange holes, painting and edging.
Comparative example 1
The difference from example 1 is that: the two surfaces of the circular ring shaped diamond tip have no pattern.
Comparative example 2
The difference from example 1 is that: herringbone convex patterns are formed on two surfaces of the circular diamond tool bit, the width of the patterns is 10mm, and the thickness of the patterns is 0.10 mm; the openings of the chevron-shaped pattern are directed toward the center of the circular steel substrate.
Comparative example 3
The difference from example 1 is that: a plurality of chutes are formed in the two surfaces of the circular diamond tool bit, the width of each chute is 0.2mm, the depth of each chute is 0.10mm, and the chutes and the circular steel substrate are arranged in an angle mode in the diameter direction.
Comparative example 4
The difference from example 2 is that: the matrix powder contained 1.6kg of EX608 alloy powder, 1.0kg of FAM1010 alloy powder, 1.5kg of copper-tin diffusion alloy powder, 0.9kg of tin powder, 0.43kg of nickel powder, 0.42kg of cobalt powder and 4.15kg of copper powder.
Comparative example 5
The difference from example 2 is that: the matrix powder contained 2.6kg of EX608 alloy powder, 1.5kg of copper-tin diffusion alloy powder, 0.9kg of tin powder, 0.45kg of ferrophosphorus powder, 0.43kg of nickel powder, 0.42kg of cobalt powder, and 3.70kg of copper powder.
Cutting experiments were performed using the diamond saw blades prepared in examples 1 to 2 and comparative examples 1 to 5. The tests for cutting the tiles with a perforated floor were carried out with a hand-held cutter with constant power (cut depth 50 mm). Fig. 5 shows a graph of the saw blade cutting speed versus cutting distance for example 1 and comparative examples 1-3. Fig. 6 shows a graph of the saw blade cutting speed versus cutting distance for example 2 and comparative examples 4-5.
It is to be understood that the present invention is not limited to the above-described embodiments, and various insubstantial modifications of the invention without modification or direct application of the invention to other applications are within the scope of the invention.
Claims (3)
1. The ultrathin herringbone ceramic corrugated sheet comprises a circular steel base body, wherein the outer edge of the circular steel base body is sintered to form a circular diamond cutter head; the method is characterized in that: a herringbone convex pattern and a water drop-shaped convex pattern connected with the herringbone convex pattern are formed on the surface of the circular diamond tool bit from outside to inside, the opening of the herringbone convex pattern faces the center of the circular steel base body, and the tip of the water drop-shaped convex pattern faces the center of the circular steel base body; the height of the herringbone protruding patterns is 4-6 mm, the height of the water drop-shaped protruding patterns is 4-6 mm, and the thickness of the herringbone protruding patterns and the thickness of the water drop-shaped protruding patterns are 0.05-0.20 mm; the thickness of the circular ring-shaped diamond tool bit is 1.5-2.0 mm, and the height of the circular ring-shaped diamond tool bit is 8-12 mm.
2. The ultra-thin herringbone ceramic corrugated sheet of claim 1, wherein: the circular diamond tool bit is formed by mixing, cold press molding and hot press sintering of matrix powder and diamond particles; the matrix powder consists of 14-16 wt% of EX608 alloy powder, 8-12 wt% of FAM1010 alloy powder, 15-18 wt% of copper-tin diffusion alloy powder, 9-12 wt% of tin powder, 3-5 wt% of ferrophosphorus powder, 4-6 wt% of nickel powder, 4-6 wt% of cobalt powder and 35-40 wt% of copper powder; the concentration of the diamond particles is 0.4-0.6ct/cm3(ii) a The EX608 alloy powder is composed of 35.0 wt% of Cu, 7.9 wt% of Sn, 12.1 wt% of Ni, 0.8 wt% of Ti, and the balance of Fe and inevitable impurities, and the Fischer-Tropsch type particle size of the EX608 alloy powder is 6.0-8.0 μm; the FAM1010 alloy powder consists of 17.6 wt% of Ni, 2.1 wt% of Co, the balance of Fe and inevitable impurities, and the Fisher's particle size of the FAM1010 alloy powder is 3.0-4.5 mu m; the copper-tin diffusion alloy powder consists of 15.0 wt% of Sn and 85.0 wt% of Cu, and the Fisher particle size of the copper-tin diffusion alloy powder is 6.0-8.0 mu m; the ferrophosphorus powder comprises 26.0-28.0 wt% of P, 0.10-1.0 wt% of Si, 0.10-2.0 wt% of Mn, 0.10-2.0 wt% of Ti, and the balance of Fe and inevitable impurities.
3. A preparation method of an ultrathin herringbone ceramic corrugated sheet is characterized by comprising the following steps:
(1) preparing materials: premixing the matrix powder and the diamond particles by a three-dimensional mixer to prepare a molding material;
(2) cold pressing: installing a circular steel base body in a tool die, putting the forming material, then assembling the circular steel base body into a cold press forming steel die, and pressurizing to obtain a cutting and grinding blank comprising a circular diamond tool bit blank, wherein herringbone-shaped convex patterns and water drop-shaped convex patterns connected with the herringbone-shaped convex patterns are formed on the surface of the circular diamond tool bit blank from outside to inside, the openings of the herringbone-shaped convex patterns face the center of the circular steel base body, and the tips of the water drop-shaped convex patterns face the center of the circular steel base body;
(3) hot-pressing and sintering: carrying out pressure sintering on the cold-pressed cutting and grinding sheet blank under the condition of protective gas, wherein the hot-pressing sintering temperature is 730-760 ℃, and the pressure is 10-25 MPa;
the herringbone protruding patterns are 4-6 mm in height, the water drop-shaped protruding patterns are 4-6 mm in height, and the thickness of the herringbone protruding patterns and the thickness of the water drop-shaped protruding patterns are 0.05-0.20 mm; the thickness of the circular ring-shaped diamond tool bit is 1.5-2.0 mm, and the height of the circular ring-shaped diamond tool bit is 8-12 mm.
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| CN2237537Y (en) * | 1994-11-11 | 1996-10-16 | 马群麟 | Inserted diamond saw blade |
| CN101758560B (en) * | 2010-03-01 | 2012-04-25 | 安泰科技股份有限公司 | Marble cutting saw blade and preparation method thereof |
| CN202137794U (en) * | 2011-06-03 | 2012-02-08 | 浙江联丰股份有限公司 | Herringbone filling trimming knife device |
| CN104907942B (en) * | 2015-05-25 | 2017-08-29 | 江苏华昌工具制造有限公司 | The preparation method of sawtooth two-sided concave U sharp concrete laser welding cutting sheets |
| CN105039824B (en) * | 2015-06-25 | 2017-09-29 | 安泰科技股份有限公司 | Diamond circular saw blade cutter head and preparation method thereof |
| CN205702695U (en) * | 2016-04-15 | 2016-11-23 | 东莞市俊知自动机械有限公司 | Quiet superthin diamond circular saw bit |
| CN205799879U (en) * | 2016-07-18 | 2016-12-14 | 石家庄蓝海工具有限公司 | The saw blade of different entrance angles |
| US10571197B2 (en) * | 2016-10-12 | 2020-02-25 | Baltimore Aircoil Company, Inc. | Indirect heat exchanger |
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| CN107364010B (en) * | 2017-06-15 | 2018-11-16 | 江苏华昌工具制造有限公司 | Two-sided sintering W type groove diamond tool and preparation method thereof |
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