CN108582502B - Diamond saw blade and preparation method thereof - Google Patents
Diamond saw blade and preparation method thereof Download PDFInfo
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- CN108582502B CN108582502B CN201810434548.5A CN201810434548A CN108582502B CN 108582502 B CN108582502 B CN 108582502B CN 201810434548 A CN201810434548 A CN 201810434548A CN 108582502 B CN108582502 B CN 108582502B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
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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
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
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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
- B22F2003/145—Both compacting and sintering simultaneously by warm compacting, below debindering temperature
Abstract
The invention relates to a diamond saw blade, belonging to the technical field of diamond sintering tools. The diamond saw blade comprises a circular steel base body and a diamond cutting head welded on the circular steel base body, wherein the diamond cutting head is a laminated sintered body formed by arranging a diamond thin layer and a metal bonding layer at intervals, and the diamond thin layer and the metal bonding layer are arranged at intervals along a direction perpendicular to the surface of the circular steel base body. The diamond saw blade has the characteristics of high cutting efficiency and stable cutting sharpness, is applied to processing of stones such as granite, marble and the like and cutting of concrete pavements and the like, reduces the use of diamond and precious metal powder, and prolongs the service life of the saw blade on the premise of improving the cutting speed.
Description
Technical Field
The invention relates to the technical field of diamond sintering tools, in particular to a diamond saw blade and a preparation method thereof.
Background
In the prior art, diamond saw blades are generally used to cut hard materials such as granite, marble, concrete, and asphalt. Diamond saw blades of the prior art are generally assembled from a circular steel base and a plurality of saw segments welded to the outer circumference of the circular steel base, the saw segments being generally formed by mixing diamond particles and metal powder, and then cold or hot pressing, and sintering. Prior art diamond saw blades generally have a shorter life at faster cutting speeds and a longer life at slower cutting speeds. Along with the high-speed growth of china economy and the rising of people's living standard day by day, domestic cost of labor festival rises, in order to satisfy high-speed cutting, above-mentioned traditional diamond-cutting piece has can't satisfy processing cost of labor demand, and the urgent need is novel high-efficient, and current diamond saw bit is replaced to energy-conserving diamond saw bit, and along with the promotion of recruitment cost, energy-efficient instrument will certainly receive user's favor.
Disclosure of Invention
In order to solve the above technical problems in the prior art, an object of the present invention is to provide a diamond saw blade and a method for manufacturing the same.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
the utility model provides a diamond saw blade, includes circular steel substrate and the diamond-cutting tool bit of welding on circular steel substrate which characterized in that: the diamond cutting tip is a laminated sintered body in which a diamond thin layer and a metal binder layer are arranged at intervals, and the diamond thin layer and the metal binder layer are arranged at intervals in a direction perpendicular to the surface of the circular steel substrate.
The diamond thin layer is formed by hot-pressing and sintering diamond particles and metal brazing filler metal.
Wherein the diamond cutting tip is bonded to the circular steel substrate by laser welding or high frequency welding.
Wherein the metal solder consists of 18-38 wt% of copper powder, 15-25 wt% of iron powder, 2-9 wt% of nickel powder, 1-6 wt% of tin powder, 2-9 wt% of high-carbon ferrochromium powder, 1-6 wt% of medium-carbon ferroboron, 0.1-0.9 wt% of liquid paraffin and the balance of pre-alloyed powder; the content of the diamond particles is 1.4-4.0 wt% of the brazing filler metal.
Preferably, the brazing filler metal consists of 20-33 wt% of copper powder, 16-22 wt% of iron powder, 3-7 wt% of nickel powder, 2-5 wt% of tin powder, 2-5 wt% of high-carbon ferrochrome powder, 1-5 wt% of medium-carbon ferroboron, 0.2-0.8 wt% of liquid paraffin and the balance of pre-alloyed powder.
Wherein the prealloyed powder is obtained by a chemical coprecipitation method, and the prealloyed powder contains 32-50 wt% of Cu, 2-9 wt% of Ni, 2-10 wt% of Re and the balance of Fe; the pre-alloyed powder has an average particle diameter of 6-9 μm.
The second aspect of the present invention also relates to a method for manufacturing a diamond saw blade.
The method for manufacturing the diamond saw blade of the present invention includes the step of welding the circular steel substrate and the diamond cutting tip, and the manufacturing of the diamond cutting tip includes the steps of:
(1) uniformly mixing diamond particles and metal brazing filler metal and performing cold pressing to obtain a diamond blank layer;
(2) cold pressing the metal binder powder to form a metal binder blank layer;
(3) arranging the diamond blank layer and the metal binder blank layer at intervals to form a laminated structure;
(4) carrying out hot-pressing sintering on the laminated structure, wherein the temperature of the hot-pressing sintering is 700-800 ℃, and the pressure is 250-E300kg/cm2And keeping the temperature for 100-240 seconds.
Wherein the metal solder consists of 18-38 wt% of copper powder, 15-25 wt% of iron powder, 2-9 wt% of nickel powder, 1-6 wt% of tin powder, 2-9 wt% of high-carbon ferrochromium powder, 1-6 wt% of medium-carbon ferroboron, 0.1-0.9 wt% of liquid paraffin and the balance of pre-alloyed powder; the content of the diamond particles is 1.4-4.0 wt% of the brazing filler metal.
Wherein the metal binder powder consists of CuSnNi, CuSnNiTi, AgCuSnNi, AgCuSnMn or AgCuSnZn alloy powder.
Compared with the prior art, the diamond saw blade has the following beneficial effects:
the diamond saw blade has the characteristics of high cutting efficiency and stable cutting sharpness, is applied to processing of stones such as granite, marble and the like and cutting of concrete pavements and the like, reduces the use of diamond and precious metal powder, and prolongs the service life of the saw blade on the premise of improving the cutting speed.
Drawings
Fig. 1 is a sectional view of a diamond saw blade using the present invention.
FIG. 2 is a schematic view of a diamond cutting tip for use with the saw blade of the present invention.
Detailed Description
The diamond cutting tip of the present invention will be further described with reference to specific embodiments thereof to assist those skilled in the art in providing a more complete, accurate and thorough understanding of the inventive concepts and aspects of the present invention.
The present invention relates to a diamond saw blade, as shown in fig. 1, a diamond saw blade 10 includes a circular steel base 11, the circular steel base 11 is processed into a disk shape with a predetermined diameter and thickness from a steel plate or the like according to a pre-design, and a mounting hole 12 is processed at the center thereof for mounting a transmission shaft driven by a motor, flutes 13 are further formed on the outer circumference of the circular steel base 11 at equal intervals, and diamond cutting tips 20 are welded on the outer circumference of the circular steel base 11, the welding method may employ a high frequency welding process or a laser welding process, for example. As shown in fig. 2, the diamond cutting tip 20 is a laminated sintered body in which a diamond thin layer 21 and a metal binder layer 22 are provided at intervals. The diamond thin layers and the metal bond layers are arranged at intervals in a direction perpendicular to the surface of the circular steel substrate shown in fig. 1 (i.e., in a direction parallel to the central axis of the circular steel substrate 11 shown in fig. 1). The thickness of the diamond thin layer (single layer) is 1.5-5.0 mm, and preferably 2.0-3.0 mm. The thickness of the metal adhesive layer (single layer) is 0.5-1.2 mm. The diamond cutting tool bit is theoretically analyzed, so that the contact area between the cutting surface of the tool bit and a cutting material is reduced, the etching depth of diamond to the cutting material is improved, and the sharpness is improved. The diamond thin layer is formed by hot-pressing and sintering diamond particles and metal brazing filler metal. And further, the brazing filler metal consists of 18-38 wt% of copper powder, 15-25 wt% of iron powder, 2-9 wt% of nickel powder, 1-6 wt% of tin powder, 2-9 wt% of high-carbon ferrochrome powder, 1-6 wt% of medium-carbon ferroboron, 0.1-0.9 wt% of liquid paraffin and the balance of pre-alloyed powder. The content of the diamond particles is 1.4-4.0 wt% of the brazing filler metal, preferably 1.5-3.1 wt%, and more preferably 1.5-2.9 wt%. The prealloying powder is obtained by a chemical coprecipitation method, and the prealloying powder contains 32-50 wt% of Cu, 2-9 wt% of Ni, 2-10 wt% of Re and the balance of Fe; the pre-alloyed powder has an average particle diameter of 6-9 μm. Although the metal brazing filler metal adopted by the invention does not contain Co which is expensive and scarce in domestic resources, the prealloy powder prepared by the chemical coprecipitation method is mixed with high-carbon ferrochrome powder, medium-carbon ferroboron and conventional Cu, Fe, Ni and Sn powder for use, so that the hot-pressing sintering temperature is obviously reduced, the structure of the matrix is compact, the matrix wear performance matched with high-speed cutting (high-speed cutting of concrete, marble and granite) can be simultaneously obtained on the basis of ensuring good holding force between the hot-pressing sintered matrix and diamond particles, the HRB value of the matrix wear performance can reach 95-108, the self-sharpening of the diamond particles under the high-speed cutting condition is ensured, the prepared diamond saw blade has excellent cutting stability, and good service performance is ensured.
In the examples of the present invention and the comparative examples, the high-carbon ferrochrome powder used had a Cr content of 52.0 wt%, a C content of 6.0 wt%, a Si content of 3.8 wt%, and the balance of Fe and inevitable impurities.
In the examples of the present invention and the comparative examples, the ferroboron medium used had a B content of 13.8 wt%, a C content of 0.92 wt%, a Si content of 3.2 wt%, and the balance of Fe and inevitable impurities.
In the examples of the present invention and the comparative examples, the prealloyed powder used was a prealloyed powder having an average particle diameter of 6-9 μm obtained by a wet coprecipitation process, and the prealloyed powder contained 39 wt% of Cu, 5 wt% of Ni, 3 wt% of LaCe alloy, and the balance of Fe.
In the examples of the present invention and the comparative examples, the diamond particles used had a particle size of 50/60 (corresponding to a particle size of 300 to 250 μm).
In the examples of the present invention and comparative examples, diamond cutting tips having a height of 30mm and a width of 40mm were prepared, each diamond cutting tip comprising 3 diamond chips having a thickness of 3.0mm, and a metal bond layer (CuSnNiTi) having a thickness of 1.2mm was disposed between the adjacent diamond chips. The diameter of the adopted round steel substrate is 340mm, and 24 diamond cutting heads are welded on each diamond saw blade.
The preparation method of the diamond saw blade comprises the following steps:
1. according to the requirements of the drawing, the steel plate is subjected to quenching heat treatment, tempering, laser cutting of shape, tempering, grinding of plane, grinding of inner hole, grinding of outer circle and deburring to manufacture a circular steel matrix.
2. The metal brazing filler metal and the diamond particles are uniformly mixed and subjected to cold press molding to form a diamond blank layer, then the diamond blank layer and the metal binder blank layer are stacked and subjected to hot pressing sintering, a grinding wheel abrasive belt is used for grinding to manufacture the diamond cutting head, the hot pressing sintering temperature is 700-800 ℃, the pressure is 250-300 kg/cm2, and the heat preservation time is 100-240 seconds.
3. Laser or high frequency welding
Placing the diamond cutting head together with a round steel substrate according to the figureAdjusting the light spot of a laser welding machine to the proper position of the cutter head and the base body on the corresponding base body position required by the paper, starting the laser welding machine to weld the cutter head and the base body together at the moment of laser penetration, and then welding at 600N/mm2The strength standard performs weld strength testing on each diamond tip.
4. High frequency welding
Install tool bit and base member on dedicated high frequency welding frame, clear up the base member surface, put the silver soldering lug, adopt high frequency heating to weld the tool bit in the side about 650/750, weld and whether the backlash that measures the tool bit and arrange with the percentage table accords with the drawing requirement.
5. Polishing, spraying paint and inspecting
The welded diamond saw blade is firstly subjected to sand blasting on the inner side surface of the tool bit, then the working surface of the diamond tool bit is polished by an L-shaped grinding wheel, the diamond is exposed, the surface of the welded diamond saw blade is polished by a polishing machine to be bright, and then the surface of the substrate is polished by 600N/mm2The intensity standard is used for detecting the safe welding intensity of each diamond tool bit, unqualified reworking is carried out, surface painting and drying are carried out if the diamond tool bits are qualified, so that the surface is prevented from rusting, and finally silk printing and laser marking are carried out.
Example 1
2.7kg of copper powder, 2.0kg of iron powder, 0.6kg of nickel powder, 0.5kg of tin powder, 0.6kg of high-carbon ferrochrome powder, 0.3kg of medium-carbon ferroboron and 3.25kg of prealloy powder are put into a mixing barrel to be mixed for 30 minutes, 0.05kg of liquid paraffin and 0.25kg of diamond particles are added, the materials are continuously mixed for 3 hours, and then the powder is filled into a die to be subjected to cold press molding to obtain a diamond blank layer; pouring CuSnNiTi alloy powder into a die for cold press molding to obtain a metal binder blank layer; arranging the diamond blank layer and the metal binder blank layer at intervals to form a laminated structure (3 layers of diamond blank layers and 2 layers of metal binder blank layers), and then performing hot-pressing sintering at 780 ℃ under 280kg/cm2The holding time was 200 seconds. Putting the prepared diamond cutting tool bit and the substrate together at the position of the substrate corresponding to the requirement of a drawing, adjusting the light spot of a laser welding machine to the proper position of the tool bit and the substrate, and starting the laser welding machine to weldThen, the tip and the base are welded together at the instant of laser penetration, and then at 600N/mm2The welding strength of each diamond tool bit is detected according to the strength standard, then the high-frequency welding is adopted for protecting teeth, after welding, the surface of the base body is polished to be bright by a polishing machine for the diamond saw blade, then the working surface of the diamond tool bit is polished by a special grinding wheel, the diamond is exposed, then the surface is painted and dried to prevent the surface from rusting, and finally the welding strength is detected at the rate of 600N/mm2And the strength standard detects the welding strength of each diamond tool bit, unqualified reworking is carried out, surface painting and drying are carried out if the diamond tool bit is qualified, so as to prevent the surface from rusting, and finally silk printing and laser marking are carried out.
Example 2
2.1kg of copper powder, 1.7kg of iron powder, 0.4kg of nickel powder, 0.3kg of tin powder, 0.6kg of high-carbon ferrochrome powder, 0.2kg of medium-carbon ferroboron and 4.66kg of prealloy powder are put into a mixing barrel to be mixed for 30 minutes, 0.04kg of liquid paraffin and 0.30kg of diamond particles are added, the materials are continuously mixed for 3 hours, and then the powder is filled into a die to be subjected to cold press molding to obtain a diamond blank layer; pouring CuSnNiTi alloy powder into a die for cold press molding to obtain a metal binder blank layer; arranging the diamond blank layer and the metal binder blank layer at intervals to form a laminated structure (3 layers of diamond blank layers and 2 layers of metal binder blank layers), and then performing hot-pressing sintering at 730 ℃ under 250kg/cm2The incubation time was 240 seconds. Putting the prepared diamond cutting tool bit and the matrix together at the position of the matrix corresponding to the requirement of a drawing, adjusting the light spot of a laser welding machine to the proper position of the tool bit and the matrix, starting a laser welding machine for welding to ensure that the tool bit and the matrix are welded together at the moment of laser penetration, and then welding at the speed of 600N/mm2The welding strength of each diamond tool bit is detected according to the strength standard, then the high-frequency welding is adopted for protecting teeth, after welding, the surface of the base body is polished to be bright by a polishing machine for the diamond saw blade, then the working surface of the diamond tool bit is polished by a special grinding wheel, the diamond is exposed, then the surface is painted and dried to prevent the surface from rusting, and finally the welding strength is detected at the rate of 600N/mm2The welding strength of each diamond tool bit is detected by the strength standard, unqualified reworking is carried out, and the qualified diamond tool bit is detected by the strength standardPainting the surface, drying to prevent the surface from rusting, and finally, silk-screen printing and laser marking.
Example 3
2.5kg of copper powder, 2.1kg of iron powder, 0.6kg of nickel powder, 0.4kg of tin powder, 0.5kg of high-carbon ferrochrome powder, 0.5kg of medium-carbon ferroboron and 3.35kg of prealloy powder are put into a mixing barrel to be mixed for 30 minutes, 0.05 wt% of liquid paraffin and 0.35kg of diamond particles are added, the materials are continuously mixed for 3 hours, and then the powder is filled into a die to be subjected to cold press molding to obtain a diamond blank layer; pouring CuSnNiTi alloy powder into a die for cold press molding to obtain a metal binder blank layer; arranging the diamond blank layer and the metal binder blank layer at intervals to form a laminated structure (3 layers of diamond blank layers and 2 layers of metal binder blank layers), and then performing hot-pressing sintering at 780 ℃ under 280kg/cm2The holding time was 200 seconds. Putting the prepared diamond cutting tool bit and the matrix together at the position of the matrix corresponding to the requirement of a drawing, adjusting the light spot of a laser welding machine to the proper position of the tool bit and the matrix, starting a laser welding machine for welding to ensure that the tool bit and the matrix are welded together at the moment of laser penetration, and then welding at the speed of 600N/mm2The welding strength of each diamond tool bit is detected according to the strength standard, then the high-frequency welding is adopted for protecting teeth, after welding, the surface of the base body is polished to be bright by a polishing machine for the diamond saw blade, then the working surface of the diamond tool bit is polished by a special grinding wheel, the diamond is exposed, then the surface is painted and dried to prevent the surface from rusting, and finally the welding strength is detected at the rate of 600N/mm2And the strength standard detects the welding strength of each diamond tool bit, unqualified reworking is carried out, surface painting and drying are carried out if the diamond tool bit is qualified, so as to prevent the surface from rusting, and finally silk printing and laser marking are carried out.
Comparative example 1
2.5kg of copper powder, 2.1kg of iron powder, 0.6kg of nickel powder, 0.4kg of tin powder and 4.35kg of prealloyed powder are put into a mixing barrel to be mixed for 30 minutes, 0.05 wt% of liquid paraffin and 0.35kg of diamond particles are added, the materials are continuously mixed for 3 hours, and then the powder is filled into a die to be subjected to cold press molding to obtain a diamond blank layer; pouring CuSnNiTi alloy powder into a die for cold press molding to obtain a metal binder blankA layer; arranging the diamond blank layer and the metal binder blank layer at intervals to form a laminated structure (3 layers of diamond blank layers and 2 layers of metal binder blank layers), and then performing hot-pressing sintering at 780 ℃ under 280kg/cm2The holding time was 200 seconds. Putting the prepared diamond cutting tool bit and the matrix together at the position of the matrix corresponding to the requirement of a drawing, adjusting the light spot of a laser welding machine to the proper position of the tool bit and the matrix, starting a laser welding machine for welding to ensure that the tool bit and the matrix are welded together at the moment of laser penetration, and then welding at the speed of 600N/mm2The welding strength of each diamond tool bit is detected according to the strength standard, then the high-frequency welding is adopted for protecting teeth, after welding, the surface of the base body is polished to be bright by a polishing machine for the diamond saw blade, then the working surface of the diamond tool bit is polished by a special grinding wheel, the diamond is exposed, then the surface is painted and dried to prevent the surface from rusting, and finally the welding strength is detected at the rate of 600N/mm2And the strength standard detects the welding strength of each diamond tool bit, unqualified reworking is carried out, surface painting and drying are carried out if the diamond tool bit is qualified, so as to prevent the surface from rusting, and finally silk printing and laser marking are carried out.
Comparative example 2
2.5kg of copper powder, 2.1kg of iron powder, 0.6kg of nickel powder, 0.4kg of tin powder, 0.5kg of high-carbon ferrochrome powder and 3.85kg of prealloy powder are taken and put into a mixing barrel to be mixed for 30 minutes, 0.05 wt% of liquid paraffin and 0.35kg of diamond particles are added, the materials are continuously mixed for 3 hours, and then the powder is filled into a mold to be cooled and pressed to obtain a diamond blank layer; pouring CuSnNiTi alloy powder into a die for cold press molding to obtain a metal binder blank layer; arranging the diamond blank layer and the metal binder blank layer at intervals to form a laminated structure (3 layers of diamond blank layers and 2 layers of metal binder blank layers), and then performing hot-pressing sintering at 780 ℃ under 280kg/cm2The holding time was 200 seconds. Putting the prepared diamond cutting tool bit and the matrix together at the position of the matrix corresponding to the requirement of a drawing, adjusting the light spot of a laser welding machine to the proper position of the tool bit and the matrix, starting a laser welding machine for welding to ensure that the tool bit and the matrix are welded together at the moment of laser penetration, and then welding at the speed of 600N/mm2The welding strength of each diamond tool bit is detected according to the strength standard, then the high-frequency welding is adopted for protecting teeth, after welding, the surface of the base body is polished to be bright by a polishing machine for the diamond saw blade, then the working surface of the diamond tool bit is polished by a special grinding wheel, the diamond is exposed, then the surface is painted and dried to prevent the surface from rusting, and finally the welding strength is detected at the rate of 600N/mm2And the strength standard detects the welding strength of each diamond tool bit, unqualified reworking is carried out, surface painting and drying are carried out if the diamond tool bit is qualified, so as to prevent the surface from rusting, and finally silk printing and laser marking are carried out.
Comparative example 3
2.5kg of copper powder, 2.1kg of iron powder, 0.6kg of nickel powder, 0.4kg of tin powder, 0.5kg of medium carbon ferroboron and 3.85kg of prealloyed powder are taken and put into a mixing barrel to be mixed for 30 minutes, 0.05 wt% of liquid paraffin and 0.35kg of diamond particles are added, the materials are continuously mixed for 3 hours, and then the powder is filled into a mold to be cooled and pressed to obtain a diamond blank layer; pouring CuSnNiTi alloy powder into a die for cold press molding to obtain a metal binder blank layer; arranging the diamond blank layer and the metal binder blank layer at intervals to form a laminated structure (3 layers of diamond blank layers and 2 layers of metal binder blank layers), and then performing hot-pressing sintering at 780 ℃ under 280kg/cm2The holding time was 200 seconds. Putting the prepared diamond cutting tool bit and the matrix together at the position of the matrix corresponding to the requirement of a drawing, adjusting the light spot of a laser welding machine to the proper position of the tool bit and the matrix, starting a laser welding machine for welding to ensure that the tool bit and the matrix are welded together at the moment of laser penetration, and then welding at the speed of 600N/mm2The welding strength of each diamond tool bit is detected according to the strength standard, then the high-frequency welding is adopted for protecting teeth, after welding, the surface of the base body is polished to be bright by a polishing machine for the diamond saw blade, then the working surface of the diamond tool bit is polished by a special grinding wheel, the diamond is exposed, then the surface is painted and dried to prevent the surface from rusting, and finally the welding strength is detected at the rate of 600N/mm2And the strength standard detects the welding strength of each diamond tool bit, unqualified reworking is carried out, surface painting and drying are carried out if the diamond tool bit is qualified, so as to prevent the surface from rusting, and finally silk printing and laser marking are carried out.
Cutting experiments were conducted using the diamond circular saw blades prepared in examples 1 to 3 and comparative examples 1 to 3, using a cutter having an output of 5.0kW, and applying a constant pressure to concrete (compressive strength of 360 kgf/cm)2) The cutting (cutting depth of 50mm) was performed with a total cutting length of 100m for each diamond saw blade, and the results of the cutting experiments are shown in Table 1.
TABLE 1
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 (8)
1. The utility model provides a diamond saw blade, includes circular steel substrate and the diamond-cutting tool bit of welding on circular steel substrate which characterized in that: the diamond cutting head is a laminated sintered body formed by arranging a diamond thin layer and a metal binder layer at intervals, and the diamond thin layer and the metal binder layer are arranged at intervals along a direction vertical to the surface of the circular steel substrate; the diamond thin layer is formed by hot-pressing and sintering diamond particles and metal brazing filler metal, and the metal brazing filler metal consists of 18-38 wt% of copper powder, 15-25 wt% of iron powder, 2-9 wt% of nickel powder, 1-6 wt% of tin powder, 2-9 wt% of high-carbon ferrochrome powder, 1-6 wt% of medium-carbon ferroboron, 0.1-0.9 wt% of liquid paraffin and the balance of pre-alloyed powder; the content of the diamond particles is 1.4-4.0 wt% of the metal solder; the prealloying powder is obtained by a chemical coprecipitation method, and the prealloying powder contains 32-50 wt% of Cu, 2-9 wt% of Ni, 2-10 wt% of Re and the balance of Fe; the pre-alloyed powder has an average particle diameter of 6-9 μm; the temperature of hot-pressing sintering is 700-800 ℃, and the pressure is 250-300 kg/cm2Keeping the temperature for 100-240 seconds; hot-pressed sintered carcass structureThe HRB value of the compound is 95-108.
2. The diamond saw blade of claim 1, wherein: the diamond cutting tip is bonded to the circular steel base body by laser welding or high-frequency welding.
3. The diamond saw blade of claim 1, wherein: the metal solder consists of 20-33 wt% of copper powder, 16-22 wt% of iron powder, 3-7 wt% of nickel powder, 2-5 wt% of tin powder, 2-5 wt% of high-carbon ferrochrome powder, 1-5 wt% of medium-carbon ferroboron, 0.2-0.8 wt% of liquid paraffin and the balance of pre-alloyed powder.
4. The diamond saw blade of claim 1, wherein: the metal binder layer is made of CuSnNi, CuSnNiTi, AgCuSnNi, AgCuSnMn or AgCuSnZn alloy powder.
5. The method of manufacturing a diamond saw blade according to claim 1, comprising the step of welding a circular steel base and a diamond cutting tip, the manufacturing of the diamond cutting tip comprising the steps of:
(1) uniformly mixing diamond particles and metal brazing filler metal and performing cold pressing to obtain a diamond blank layer;
(2) cold pressing the metal binder powder to form a metal binder blank layer;
(3) arranging the diamond blank layer and the metal binder blank layer at intervals to form a laminated structure;
(4) and carrying out hot-pressing sintering on the laminated structure.
6. The method of claim 5, wherein: the diamond cutting tip is bonded to the circular steel base body by laser welding or high-frequency welding.
7. The method of claim 5, wherein: the metal solder consists of 20-33 wt% of copper powder, 16-22 wt% of iron powder, 3-7 wt% of nickel powder, 2-5 wt% of tin powder, 2-5 wt% of high-carbon ferrochrome powder, 1-5 wt% of medium-carbon ferroboron, 0.2-0.8 wt% of liquid paraffin and the balance of pre-alloyed powder.
8. The method of claim 5, wherein: the metal binder layer is made of CuSnNi, CuSnNiTi, AgCuSnNi, AgCuSnMn or AgCuSnZn alloy powder.
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| CN201810434548.5A CN108582502B (en) | 2018-05-07 | 2018-05-07 | Diamond saw blade and preparation method thereof |
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| CN201810434548.5A CN108582502B (en) | 2018-05-07 | 2018-05-07 | Diamond saw blade and preparation method thereof |
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| CN108582502B true CN108582502B (en) | 2020-10-02 |
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| CN201810434548.5A Active CN108582502B (en) | 2018-05-07 | 2018-05-07 | Diamond saw blade and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ES2762970A1 (en) * | 2018-11-26 | 2020-05-26 | Solga Diamant S L | Segmented cutting disc, for racing on the floor or on the wall. (Machine-translation by Google Translate, not legally binding) |
| CN109894675A (en) * | 2019-04-19 | 2019-06-18 | 江苏锋菱超硬工具有限公司 | It is brazed particle alloy woodworking saw blade and its production method |
| CN110219044B (en) * | 2019-05-23 | 2021-07-06 | 宁波晶钻工业科技有限公司 | Laser marking growth method of single crystal diamond |
| EP3986647A1 (en) | 2019-06-20 | 2022-04-27 | HIPtec AS | A method for manufacturing a metal based component comprising a protrusion |
| CN111922430A (en) * | 2020-06-23 | 2020-11-13 | 江苏华昌工具制造有限公司 | Preparation method of high-bending-strength laser welding diamond saw blade |
| CN115430831B (en) * | 2022-08-08 | 2023-10-24 | 泉州众志金刚石工具有限公司 | Diamond tool bit and preparation method thereof |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2254812Y (en) * | 1996-03-07 | 1997-05-28 | 机械工业部郑州磨料磨具磨削研究所 | Diamond teeth of saw blade |
| EP0988950A1 (en) * | 1998-09-07 | 2000-03-29 | DIAMANT BOART Société Anonyme | Method of sawing stone, diamond cutting segment and saw blade equipped with such segment |
| CN1295064C (en) * | 2004-02-17 | 2007-01-17 | 河南黄河旋风股份有限公司 | Diamond saw bit and its manufacturing method |
| CN100404448C (en) * | 2004-02-17 | 2008-07-23 | 河南黄河旋风股份有限公司 | Dual-purpose saw web for cutting and grinding glass and its manufacturing method |
| KR20050118074A (en) * | 2004-04-21 | 2005-12-15 | 이화다이아몬드공업 주식회사 | Cutting segment, method for manufacturing cutting segment and cutting tool |
| CN1986116B (en) * | 2005-12-19 | 2011-01-19 | 北京有色金属研究总院 | RE-containing pre-alloy powder |
| CN200954663Y (en) * | 2006-10-09 | 2007-10-03 | 顾国胜 | Diamond circular-saw-bit cutter head |
| CN201095162Y (en) * | 2007-09-03 | 2008-08-06 | 泉州市洛江区双阳金刚石工具有限公司 | Diamond gang saw tool bit with laminated segmented structure |
| JP4910016B2 (en) * | 2009-06-16 | 2012-04-04 | 株式会社ティクスホールディングス | Composite wear-resistant member and method of manufacturing the same |
| CN202137854U (en) * | 2011-07-12 | 2012-02-08 | 山东日能超硬材料有限公司 | Superhard material cutter head with high surface abrasion resistance |
| CN102267190A (en) * | 2011-07-12 | 2011-12-07 | 山东日能超硬材料有限公司 | Segmented compound super-hard cutter bit and manufacturing method thereof |
| CN102560475B (en) * | 2011-12-22 | 2013-08-21 | 山西潞安环保能源开发股份有限公司 | Cladding method of alloy powder material |
| CN102896316B (en) * | 2012-09-24 | 2015-05-13 | 石家庄市鑫达金刚石工具有限公司 | Production process of diamond saw blade formed by compressing granular powders |
| KR101529910B1 (en) * | 2013-11-08 | 2015-06-18 | 장범수 | Tips for cutting stone and its manufacturing method |
| CN104874863B (en) * | 2015-06-19 | 2017-04-19 | 江苏锋泰工具有限公司 | Manufacture method for dry and wet dual-purpose diamond saw blade |
| CN105821279A (en) * | 2016-05-18 | 2016-08-03 | 江苏超峰工具有限公司 | High-strength diamond saw blade |
| CN107442896B (en) * | 2016-05-30 | 2020-07-14 | 上海沪工焊接集团股份有限公司 | Inverter type welding machine control circuit |
| CN106182448B (en) * | 2016-08-19 | 2018-03-02 | 广州晶体科技有限公司 | Sandwich-type gang saw tool bit and its manufacture method |
| CN106811701A (en) * | 2017-02-09 | 2017-06-09 | 江苏汇诚机械制造有限公司 | A kind of preparation method of high-toughness heat-resistant VC steel bonded carbide |
| CN107058901A (en) * | 2017-02-09 | 2017-08-18 | 江苏汇诚机械制造有限公司 | A kind of preparation method of high-toughness heat-resistant TiC/TiN steel bonded carbide |
| CN107379277B (en) * | 2017-08-17 | 2023-07-14 | 江苏华昌工具制造有限公司 | Diamond saw blade |
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