CN115415945B - Pure dry diamond grinding disc and manufacturing method thereof - Google Patents
Pure dry diamond grinding disc and manufacturing method thereof Download PDFInfo
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- CN115415945B CN115415945B CN202211187951.5A CN202211187951A CN115415945B CN 115415945 B CN115415945 B CN 115415945B CN 202211187951 A CN202211187951 A CN 202211187951A CN 115415945 B CN115415945 B CN 115415945B
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- 238000000227 grinding Methods 0.000 title claims abstract description 167
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 95
- 239000010432 diamond Substances 0.000 title claims abstract description 95
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000011159 matrix material Substances 0.000 claims abstract description 31
- 229910052802 copper Inorganic materials 0.000 claims abstract description 28
- 239000010949 copper Substances 0.000 claims abstract description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 23
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 17
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 14
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229940057995 liquid paraffin Drugs 0.000 claims abstract description 13
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 11
- 239000010941 cobalt Substances 0.000 claims abstract description 11
- 239000011135 tin Substances 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 10
- 229910052718 tin Inorganic materials 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims description 49
- 239000000758 substrate Substances 0.000 claims description 22
- 238000005498 polishing Methods 0.000 claims description 18
- 238000005245 sintering Methods 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 15
- 238000005496 tempering Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000003698 laser cutting Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 238000007731 hot pressing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000005488 sandblasting Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 10
- 239000004576 sand Substances 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 abstract description 2
- 239000010438 granite Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 238000013021 overheating Methods 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 6
- 239000003973 paint Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 229910001096 P alloy Inorganic materials 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000011534 incubation Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000010330 laser marking Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
Abstract
The invention discloses a pure dry diamond grinding disc and a manufacturing method thereof, and belongs to the technical field of grinding tools. The inner ring of the millstone matrix is provided with a water drop-shaped drain hole A, the diamond grinding blocks are divided into a plurality of groups, and each group consists of two L-shaped grinding blocks which are oppositely arranged; and a drain through groove is formed between each group of two L-shaped grinding blocks at intervals, and a base body corresponding to the drain through groove is provided with a drain hole B. The grinding block is made of metal powder such as copper, iron, tin, cobalt, nickel, phosphorus copper alloy and the like, and diamond and liquid paraffin, through the optimal design of the tool bit and the matrix, the contact surface is provided with more chip removing holes when the grinding disc is used for grinding, more sand and stones and dust can be discharged through the chip removing holes when concrete and granite are cut, and more heat generated during grinding is taken away along with the flowing of the sand and the dust, so that the influence on the use caused by the burning of the diamond tool bit due to overheating of the tool bit of the grinding disc is reduced.
Description
Technical Field
The invention relates to the technical field of polishing tools, in particular to a pure dry diamond grinding disc and a manufacturing method thereof, wherein the diamond grinding disc is mainly used for polishing, flattening, renovating and the like of reinforced concrete pavements and expressways, bridges and underground civil air defense engineering pavements.
Background
Under the large background of high-speed economic development at present, energy conservation and environmental protection are more and more concerned, and the foundation construction is not separated from the polishing tool. Most of traditional similar products need to be cooled by adding water, a large amount of dust is generated, the construction site is difficult to treat due to the water adding, and even the problem of personal injury caused by electric leakage in the construction process of using water occurs.
Therefore, it is very important to develop a polishing tool which is more efficient and energy-saving, has more environment-friendly use conditions and does not generate redundant waste water, so that better economic benefit is obtained, and the waste of electric energy and excessive consumption of diamond and metal powder are reduced.
Disclosure of Invention
The invention aims to provide a pure dry diamond grinding disc and a manufacturing method thereof, through the optimal design of a cutter head and a matrix, more chip removing holes are formed in the contact surface of the grinding disc during grinding, more sand and dust can be discharged through the chip removing holes during cutting concrete and granite, and more heat generated during grinding is taken away along with the flow of the sand and the dust, so that the influence on the use of the diamond cutter head due to the overheating of the grinding disc cutter head is reduced.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the pure dry type diamond grinding disc comprises a grinding disc substrate and a diamond grinding block, wherein the grinding disc substrate comprises a disc outer ring and a disc inner ring; the diamond grinding block is welded on the outer ring of the disc body; wherein: the inner ring of the millstone substrate is provided with water drop-shaped drain holes A, and the number of the drain holes A is 3-6; the diamond grinding blocks are in a plurality of groups, and each group consists of two L-shaped grinding blocks which are oppositely arranged; and a drain hole B is formed on a matrix corresponding to the drain through grooves, wherein a 5-10mm interval is reserved between each two L-shaped grinding blocks.
The center of the millstone substrate is provided with a mounting hole for being mounted on a mill; the millstone matrix is provided with a drain notch on the edge of the outer periphery of the millstone body and between two adjacent groups of diamond grinding blocks.
The drain hole A is arranged between two groups of diamond grinding blocks, so that convection is formed between the drain hole A and a drain notch of the outer ring of the disc body.
The grinding disc substrate is 45# steel.
The raw materials of the diamond grinding block consist of copper, tin, nickel, cobalt, phosphorus-copper alloy, liquid paraffin and diamond, wherein the granularity of the diamond is 40/50 or 50/60, and the compressive strength is 25-40kg; the phosphorus element content in the phosphorus-copper alloy is 8-15wt.%.
The diamond grinding block comprises the following raw materials in parts by weight: 23-34 parts of copper, 29-40 parts of iron, 4-12 parts of nickel, 11-20 parts of cobalt, 5-10 parts of tin, 5-12 parts of phosphor-copper alloy, 0.9-1.6 parts of liquid paraffin and 1.0-2.4 parts of diamond.
The diamond grinding block is preferably prepared from the following raw materials in parts by weight:
27-29 parts of copper, 30-38 parts of iron, 5-10 parts of nickel, 12-17 parts of cobalt, 6-9 parts of tin, 6-11 parts of phosphor-copper alloy, 1.0-1.5 parts of liquid paraffin and 1.2-2.2 parts of diamond.
The diamond grinding block is more preferably prepared from the following raw materials in parts by weight:
28 parts of copper, 32 parts of iron, 7 parts of nickel, 12 parts of cobalt, 8 parts of tin, 7 parts of phosphorus-copper alloy, 1.3 parts of liquid paraffin and 1.6 parts of diamond.
The manufacturing method of the pure dry diamond grinding disc comprises the following steps:
(1) Processing a substrate:
according to the drawing requirements, performing quenching heat treatment, tempering, laser cutting, tempering, plane grinding, inner hole grinding, excircle grinding, deburring and the like on the steel plate;
(2) Preparing a diamond grinding block:
weighing and uniformly mixing the raw materials according to the composition of the raw materials of the diamond grinding block, then placing the raw materials into a mould for cold press molding, and then performing hot press sintering, and grinding by adopting a grinding wheel abrasive belt to obtain the diamond grinding block after sintering; the hot-pressing sintering temperature is 630-680 ℃ and the pressure is 240-320 g/cm 2 The heat preservation time is 200-300 seconds.
(3) High-frequency welding:
placing the grinding block on the corresponding position of the matrix, placing the copper brazing sheet between the grinding block and the matrix, and then heating to the welding temperature of 700-735 ℃ for 10-15 seconds;
(4) And (3) carrying out sand blasting treatment on the inner side surface of the grinding block of the pure dry type diamond grinding disc obtained after welding, and then polishing the working surface of the diamond grinding block by using a grinding wheel, so that the diamond is exposed.
The design principle and the beneficial effects of the invention are as follows:
1. according to the invention, the structure of the diamond grinding block is improved, each group of grinding blocks is designed to be double-L-shaped, and during the cutting process, the chippings, sand, stones and dust generated during the grinding of the grinding blocks can be rapidly discharged through the discharge through grooves and the discharge holes B between the double-L-shaped grinding blocks, and the high heat generated during the grinding of the grinding blocks is taken away.
2. According to the grinding disc base body, the drainage through grooves are cut in the middle of each group of two grinding blocks, so that larger wind flow is generated, cooling is accelerated, 3-6 drip type drainage holes A are formed in the center of the base body, dust and sand generated during grinding can be further discharged, and convection is formed between the dust and sand and the drainage hole notch of the outer ring of the grinding disc.
3. The invention adopts high-frequency welding, the welding sheet is a copper sheet, and the welding fastness can be kept unchanged even if the grinding block generates a higher temperature in the grinding process after high-temperature welding due to the higher melting point of copper.
4. According to the invention, the grinding block is L-shaped and has a small contact surface with the substrate, so that the grinding block is easy to fall off in the grinding process. In order to improve the binding force between the grinding block and the matrix, and simultaneously, the copper sheet is adopted as a welding sheet, so that the components of the grinding block are optimally designed. The high-content iron is adopted in the grinding block to improve the wettability with the matrix material, and the high-content copper element is adopted in the grinding block to improve the wettability with the copper brazing sheet, but copper and iron are easy to oxidize during high-temperature sintering and welding, so that one part of the copper element is provided by elemental copper, and the other part of the copper element is provided by copper-phosphorus alloy, so that the tendency that the elemental copper is easy to oxidize during hot press sintering and welding is reduced. The copper-phosphorus alloy is used for providing copper element on one hand, and on the other hand, the copper-phosphorus alloy has the function of high-temperature oxygen absorption, so that the oxygen content of a welding surface can be reduced during sintering and welding, the oxidation tendency of copper and iron is reduced, and the binding force is improved.
5. The grinding block and the matrix are welded at high frequency, and the components of the grinding block (such as proper addition of tin, phosphorus and copper alloy) are designed, so that the sintering and welding temperatures are low, the welding bonding strength is high, the safety performance is better, and the grinding block can ensure that the cutter head can withstand high-speed collision and is not easy to fall off when grinding hard objects such as steel bars, cobbles and the like. While ensuring the strength of the grinding block (e.g., proper addition of cobalt).
6. The diamond grinding disc does not need to be cooled by adding water, so that the construction site is difficult to treat due to the water addition, and the risk of personal injury caused by electric leakage in the construction process using water is reduced. The invention can be matched with dust removing equipment to quickly suck away dust.
Drawings
Fig. 1 is a schematic view (front view) of the pure dry diamond grinding disc.
Fig. 2 is a schematic structural view (radial cross-sectional view of a disc body) of a pure dry diamond grinding disc of the invention.
In the figure: 1-grinding disc matrix; 2-grinding blocks; 3-a drain hole A; 4-a drain hole B; 5-draining through grooves; 6-drainage notch.
Detailed Description
For a further understanding of the present invention, the present invention is described below with reference to the examples, which are only illustrative of the features and advantages of the present invention and are not intended to limit the scope of the claims of the present invention.
The invention provides a pure dry type diamond grinding disc, which comprises a grinding disc base body 1 and diamond grinding blocks, as shown in figures 1-2. The millstone matrix is 45# steel and comprises a millstone outer ring and a millstone inner ring; the diamond grinding block is welded on the outer ring of the disc body; wherein: the inner ring of the millstone substrate is provided with water drop-shaped drain holes A3, and the number of the drain holes A is 3-6; the diamond grinding blocks are in a plurality of groups, and each group consists of two L-shaped grinding blocks 2 which are oppositely arranged (the free ends of the two L-shaped grinding blocks are oppositely arranged); and a drain through groove 5 is formed between each group of two L-shaped grinding blocks at a 5-10mm interval, and a drain hole B4 is formed on a substrate corresponding to the drain through groove.
The center of the millstone substrate is provided with a mounting hole for being mounted on a mill; the grinding disc substrate is provided with a drain notch 6 on the edge of the outer periphery of the disc body and between two adjacent groups of diamond grinding blocks.
The drain hole A is arranged between two groups of diamond grinding blocks (the drain hole A is arranged on the inner side of the drain notch), so that convection is formed between the drain hole A and the drain notch of the outer ring of the disc body.
In the following examples, the raw materials of the diamond grinding block consist of copper, tin, nickel, cobalt, phosphor copper alloy, liquid paraffin and diamond, wherein the granularity of the diamond is 40/50 or 50/60, and the compressive strength is 25-40kg; the phosphorus element content in the phosphorus-copper alloy is 12wt.%.
Example 1:
the diamond grinding disc of the embodiment is prepared as follows:
1. according to the drawing requirements, the substrate is subjected to quenching heat treatment by a steel plate, tempering, laser cutting, tempering, plane grinding, inner hole grinding, excircle grinding, deburring and other procedures;
2. 2.85kg of copper powder, 3.55kg of iron powder, 0.9kg of nickel powder, 1.2kg of cobalt powder, 0.6kg of tin powder and 1.0kg of phosphor-copper alloy are taken and put into a mixing barrel to be mixed for 40 minutes, 0.11kg of liquid paraffin and 0.21kg of diamond are added, and the mixing is continued for 3 hours; and then pouring the powder into a mould for cold press molding, hot press sintering and grinding the grinding block by a grinding wheel abrasive belt. Wherein the hot press sintering temperature is 665 ℃ and the pressure is 300g/cm 2 The incubation time was 240 seconds.
3. Placing the grinding block and the matrix at the corresponding matrix position according to the drawing requirement, placing a copper welding sheet between the grinding block and the matrix, adjusting the high-frequency welding machine to the proper position of the grinding block and the matrix, starting the high-frequency welding machine for welding, wherein the welding temperature is 725 ℃, and the welding time is 12 seconds; after the grinding block and the matrix were welded together, the welding speed was 600N/mm 2 And (5) detecting the welding strength of each diamond grinding block according to the strength standard, wherein the detection result is qualified.
4. Polishing the surface of the substrate with a polishing machine to obtain a bright surface, polishing the working surface of the diamond block with a grinding wheel to expose the diamond, spraying paint on the surface, and drying to prevent rust on the surface, and finally polishing at 600N/mm 2 And (3) detecting the welding strength of each diamond grinding block according to the strength standard, spraying paint on the surface after the diamond grinding blocks are qualified, drying to prevent the surface from rusting, and finally performing silk screen printing, laser marking, packaging and warehousing.
Example 2:
the diamond grinding disc of the embodiment is prepared as follows:
1. according to the drawing requirements, the substrate is subjected to quenching heat treatment by a steel plate, tempering, laser cutting, tempering, plane grinding, inner hole grinding, excircle grinding, deburring and other procedures;
2. 2.8kg of copper powder, 3.2kg of iron powder, 0.7kg of nickel powder, 1.2kg of cobalt powder, 0.8kg of tin powder and 0.7kg of phosphor-copper alloy are taken and put into a mixing bucket to be mixed for 40 minutes, 0.13kg of liquid paraffin and 0.16kg of diamond are added, and the mixing is continued for 3 hours; and then pouring the powder into a mould for cold press molding, hot press sintering and grinding the grinding block by a grinding wheel abrasive belt. Wherein the hot press sintering temperature is 665 ℃ and the pressure is 300g/cm 2 The incubation time was 240 seconds.
3. Placing the grinding block and the matrix at the corresponding matrix position according to the drawing requirement, placing a copper welding sheet between the grinding block and the matrix, adjusting the high-frequency welding machine to the proper position of the grinding block and the matrix, starting the high-frequency welding machine for welding, wherein the welding temperature is 725 ℃, and the welding time is 12 seconds; after the grinding block and the matrix were welded together, the welding speed was 600N/mm 2 And (5) detecting the welding strength of each diamond grinding block according to the strength standard, wherein the detection result is qualified.
4. Polishing the surface of the substrate with a polishing machine to obtain a bright surface, polishing the working surface of the diamond block with a grinding wheel to expose the diamond, spraying paint on the surface, and drying to prevent rust on the surface, and finally polishing at 600N/mm 2 And (3) detecting the welding strength of each diamond grinding block according to the strength standard, spraying paint on the surface after the diamond grinding blocks are qualified, drying to prevent the surface from rusting, and finally performing silk screen printing, laser marking, packaging and warehousing.
Example 3:
the diamond grinding disc of the embodiment is prepared as follows:
1. according to the drawing requirements, the substrate is subjected to quenching heat treatment by a steel plate, tempering, laser cutting, tempering, plane grinding, inner hole grinding, excircle grinding, deburring and other procedures;
2. 2.85kg of copper powder, 3.75kg of iron powder, 0.6kg of nickel powder, 1.5kg of cobalt powder, 0.85kg of tin powder and 0.9kg of phosphor-copper alloy are taken and put into a mixing barrel to be mixed for 40 minutes, 0.13kg of liquid paraffin and 0.18kg of diamond are added, and the mixing is continued for 3 hours; and then pouring the powder into a mould for cold press molding, hot press sintering and grinding the grinding block by a grinding wheel abrasive belt.Wherein the hot press sintering temperature is 670 ℃ and the pressure is 300g/cm 2 The incubation time was 240 seconds.
3. Placing the grinding block and the matrix at the corresponding matrix position according to the drawing requirement, placing a copper welding sheet between the grinding block and the matrix, adjusting the high-frequency welding machine to the proper position of the grinding block and the matrix, starting the high-frequency welding machine for welding, wherein the welding temperature is 715 ℃, and the welding time is 12 seconds; after the grinding block and the matrix were welded together, the welding speed was 600N/mm 2 And (5) detecting the welding strength of each diamond grinding block according to the strength standard, wherein the detection result is qualified.
4. Polishing the surface of the substrate with a polishing machine to obtain a bright surface, polishing the working surface of the diamond block with a grinding wheel to expose the diamond, spraying paint on the surface, and drying to prevent rust on the surface, and finally polishing at 600N/mm 2 And (3) detecting the welding strength of each diamond grinding block according to the strength standard, spraying paint on the surface after the diamond grinding blocks are qualified, drying to prevent the surface from rusting, and finally performing silk screen printing, laser marking, packaging and warehousing.
Claims (7)
1. The utility model provides a pure dry-type diamond mill, includes mill base member and diamond grinding piece, its characterized in that: the millstone matrix comprises a millstone outer ring and a millstone inner ring; the diamond grinding block is welded on the outer ring of the disc body; wherein: the inner ring of the millstone substrate is provided with water drop-shaped drain holes A, and the number of the drain holes A is 3-6; the diamond grinding blocks are in a plurality of groups, and each group consists of two L-shaped grinding blocks which are oppositely arranged; a drain through groove is formed between each group of two L-shaped grinding blocks at a 5-10mm interval, and a drain hole B is formed on a substrate corresponding to the drain through groove;
the grinding disc substrate is provided with a drain notch on the edge of the outer ring of the disc body and between two adjacent groups of diamond grinding blocks, and the drain hole A is arranged between the two groups of diamond grinding blocks so as to form convection with the drain notch of the outer ring of the disc body;
the diamond grinding block and the grinding disc matrix are connected into a whole by high-frequency welding, and the welding sheet is a copper sheet;
the diamond grinding block comprises the following raw materials in parts by weight:
23-34 parts of copper, 29-40 parts of iron, 4-12 parts of nickel, 11-20 parts of cobalt, 5-10 parts of tin, 5-12 parts of phosphor-copper alloy, 0.9-1.6 parts of liquid paraffin and 1.0-2.4 parts of diamond.
2. A pure dry diamond abrasive disc according to claim 1, wherein: the grinding disc substrate is 45# steel.
3. A pure dry diamond abrasive disc according to claim 1, wherein: the raw materials of the diamond grinding block consist of copper, tin, nickel, cobalt, phosphorus-copper alloy, liquid paraffin and diamond, wherein the granularity of the diamond is 40/50 or 50/60, and the compressive strength is 25-40kg; the phosphorus element content in the phosphorus-copper alloy is 8-15wt.%.
4. A pure dry diamond abrasive disc according to claim 1, wherein: the diamond grinding block comprises the following raw materials in parts by weight:
27-29 parts of copper, 30-38 parts of iron, 5-10 parts of nickel, 12-17 parts of cobalt, 6-9 parts of tin, 6-11 parts of phosphor-copper alloy, 1.0-1.5 parts of liquid paraffin and 1.2-2.2 parts of diamond.
5. A pure dry diamond abrasive disc according to claim 1, wherein: the diamond grinding block comprises the following raw materials in parts by weight:
28 parts of copper, 32 parts of iron, 7 parts of nickel, 12 parts of cobalt, 8 parts of tin, 7 parts of phosphorus-copper alloy, 1.3 parts of liquid paraffin and 1.6 parts of diamond.
6. The method of manufacturing a pure dry diamond grinding disc according to claim 1, characterized in that: the method comprises the following steps:
(1) Processing a substrate:
according to the drawing requirements, performing quenching heat treatment, tempering, laser cutting, tempering, plane grinding, inner hole grinding, excircle grinding, deburring and the like on the steel plate;
(2) Preparing a diamond grinding block:
weighing and uniformly mixing the raw materials according to the composition of the raw materials of the diamond grinding block, then placing the raw materials into a mould for cold press molding, and then performing hot press sintering, and grinding by adopting a grinding wheel abrasive belt to obtain the diamond grinding block after sintering;
(3) High-frequency welding:
placing the grinding block on the corresponding position of the matrix, placing the copper welding sheet between the grinding block and the matrix, and then heating to the welding temperature;
(4) And (3) carrying out sand blasting treatment on the inner side surface of the grinding block of the pure dry type diamond grinding disc obtained after welding, and then polishing the working surface of the diamond grinding block by using a grinding wheel, so that the diamond is exposed.
7. The method of manufacturing a pure dry diamond grinding disc according to claim 6, characterized in that: in the step (2), the hot pressing sintering temperature is 630-680 ℃ and the pressure is 240-320 g/cm 2 The heat preservation time is 200-300 seconds; in the step (3), the high-frequency welding temperature is 700-735 ℃ and the welding time is 10-15 seconds.
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07266239A (en) * | 1994-03-25 | 1995-10-17 | Hitachi Koki Co Ltd | Diamond core bit |
| JPH10102167A (en) * | 1996-09-25 | 1998-04-21 | Toyota Central Res & Dev Lab Inc | Low-melting copper brazing filler metal |
| US5976205A (en) * | 1996-12-02 | 1999-11-02 | Norton Company | Abrasive tool |
| NO20023810D0 (en) * | 2001-08-13 | 2002-08-12 | Carbodiam Sa | Grinding wheel |
| EP1304190A1 (en) * | 2001-10-19 | 2003-04-23 | Carbodiam S.A. | Cutting tool for the removal of coatings from mineral substrates |
| JP2007307701A (en) * | 2006-04-18 | 2007-11-29 | Nippon Steel Corp | Rotary grinding tool excellent in rust removal and base adjustment, its manufacturing method and rust removal and base adjustment method using it |
| CN101837569A (en) * | 2010-01-12 | 2010-09-22 | 武汉万邦激光金刚石工具有限公司 | Rapid-assembly structure of split diamond millstone |
| CN202088116U (en) * | 2011-04-26 | 2011-12-28 | 博深工具股份有限公司 | Diamond grinding disc |
| CN202336813U (en) * | 2011-11-17 | 2012-07-18 | 泉州市易光石材工具有限公司 | Diamond abrasion block |
| CN203197760U (en) * | 2013-04-28 | 2013-09-18 | 河北金泰金刚石工具有限公司 | Diamond grinding cutting tool |
| CN105215866A (en) * | 2015-10-28 | 2016-01-06 | 江苏锋泰工具有限公司 | A kind of dry grinding diamond-impregnated wheel |
| CN106181123A (en) * | 2016-08-19 | 2016-12-07 | 佛山晓世科技服务有限公司 | A kind of low silver middle temperature brazing material |
| CN205950528U (en) * | 2016-08-26 | 2017-02-15 | 新郑市宝德高技术有限公司 | Zigzag mill |
| JP2017124903A (en) * | 2016-01-13 | 2017-07-20 | 東芝エレベータ株式会社 | Control device and control system for elevator |
| CN110370467A (en) * | 2019-06-05 | 2019-10-25 | 江苏友美工具有限公司 | A kind of Laser Welding contact pin and its preparation process reducing Cutting Drag |
| CN111906944A (en) * | 2020-06-23 | 2020-11-10 | 江苏华昌工具制造有限公司 | Laser welding diamond saw blade for cutting reinforced concrete and preparation process thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10414012B2 (en) * | 2017-01-13 | 2019-09-17 | Husqvarna Construction Products North America, Inc. | Grinding pad apparatus |
-
2022
- 2022-09-28 CN CN202211187951.5A patent/CN115415945B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07266239A (en) * | 1994-03-25 | 1995-10-17 | Hitachi Koki Co Ltd | Diamond core bit |
| JPH10102167A (en) * | 1996-09-25 | 1998-04-21 | Toyota Central Res & Dev Lab Inc | Low-melting copper brazing filler metal |
| US5976205A (en) * | 1996-12-02 | 1999-11-02 | Norton Company | Abrasive tool |
| NO20023810D0 (en) * | 2001-08-13 | 2002-08-12 | Carbodiam Sa | Grinding wheel |
| EP1304190A1 (en) * | 2001-10-19 | 2003-04-23 | Carbodiam S.A. | Cutting tool for the removal of coatings from mineral substrates |
| JP2007307701A (en) * | 2006-04-18 | 2007-11-29 | Nippon Steel Corp | Rotary grinding tool excellent in rust removal and base adjustment, its manufacturing method and rust removal and base adjustment method using it |
| CN101837569A (en) * | 2010-01-12 | 2010-09-22 | 武汉万邦激光金刚石工具有限公司 | Rapid-assembly structure of split diamond millstone |
| CN202088116U (en) * | 2011-04-26 | 2011-12-28 | 博深工具股份有限公司 | Diamond grinding disc |
| CN202336813U (en) * | 2011-11-17 | 2012-07-18 | 泉州市易光石材工具有限公司 | Diamond abrasion block |
| CN203197760U (en) * | 2013-04-28 | 2013-09-18 | 河北金泰金刚石工具有限公司 | Diamond grinding cutting tool |
| CN105215866A (en) * | 2015-10-28 | 2016-01-06 | 江苏锋泰工具有限公司 | A kind of dry grinding diamond-impregnated wheel |
| JP2017124903A (en) * | 2016-01-13 | 2017-07-20 | 東芝エレベータ株式会社 | Control device and control system for elevator |
| CN106181123A (en) * | 2016-08-19 | 2016-12-07 | 佛山晓世科技服务有限公司 | A kind of low silver middle temperature brazing material |
| CN205950528U (en) * | 2016-08-26 | 2017-02-15 | 新郑市宝德高技术有限公司 | Zigzag mill |
| CN110370467A (en) * | 2019-06-05 | 2019-10-25 | 江苏友美工具有限公司 | A kind of Laser Welding contact pin and its preparation process reducing Cutting Drag |
| CN111906944A (en) * | 2020-06-23 | 2020-11-10 | 江苏华昌工具制造有限公司 | Laser welding diamond saw blade for cutting reinforced concrete and preparation process thereof |
Non-Patent Citations (1)
| Title |
|---|
| 铜磷预合金粉在金刚石工具中的应用;于奇;马佳;龙伟民;钟素娟;丁天然;于新泉;;金刚石与磨料磨具工程;20180917(04);全文 * |
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