CN108582504A - Energy-efficient diamond saw blade and preparation method thereof - Google Patents
Energy-efficient diamond saw blade and preparation method thereof Download PDFInfo
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- CN108582504A CN108582504A CN201810434588.XA CN201810434588A CN108582504A CN 108582504 A CN108582504 A CN 108582504A CN 201810434588 A CN201810434588 A CN 201810434588A CN 108582504 A CN108582504 A CN 108582504A
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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
-
- 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
- B28D1/12—Saw-blades or saw-discs specially adapted for working stone
- B28D1/121—Circular saw blades
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The present invention relates to a kind of energy-efficient diamond saw blades, belong to the technical field of compact diamond tool.The energy-efficient diamond saw blade of the present invention, including round steel matrix and the composite multi-layer diamond segment being welded in round steel matrix, composite multi-layer diamond segment includes multi-layer diamond incised layer, and diamond cut layer is made of carcass and the impregnated diamond particles in carcass；The concentration of diamond particles in intermediate diamond cut layer is more than the concentration positioned at both sides；Tyre body hardness in intermediate diamond cut layer is less than the tyre body hardness positioned at both sides.The energy-efficient diamond saw blade of the present invention is applied to the processing of stone materials and the cuttings of concrete road surface such as granite, marble, has cutting speed fast, and cutting sharpness is high, the feature that performance is stablized；And energy consumption is advantageously reduced, and the diamond used is less without ingredients such as rare Co elements, advantageously reduces tool cost.
Description
Technical field
The present invention relates to the technical fields of compact diamond tool, it is more particularly related to a kind of energy-efficient
Diamond saw blade and preparation method thereof.
Background technology
Since the nineteen fifty-three U.S. G.E. company since synthesis of artificial diamond, the mankind using diamond tool type,
Specification has obtained significantly developing, and China from 1963 success synthesis of artificial diamond since, China's diamond tool experience
Grow out of nothing and expand from small to large, road for development from product to industry intensive from being distributed to.In the hard crisp class non-metallic material of processing
In terms of the diamond tool of material, China has become big producer of the world.Diamond saw blade, diamond bit and skive
It is three big principal items of diamond tool, wherein diamond saw blade is the leading products in diamond tool, is united by quantity
Meter, diamond saw blade occupy 90% of diamond tool or more, and diamond saw blade is generally used for cutting brittle property nonmetallic materials
And cutting metal material, such as diamond saw blade is generally used for granite, marble, concrete, pitch, refractory material and cuts
It cuts and the cutting of the metal materials such as silicon, aluminium alloy, magnesium alloy.It is used to cut brittle property nonmetallic materials in the prior art
Diamond saw blade is usually formed by round steel matrix and the multiple diamond segments being welded on its excircle, the Buddha's warrior attendant
Stone cutter head is usually mixed by diamond particles and metal powder, then by cold pressing or hot pressing, and is formed through oversintering.At present
Diamond cutting cutter head compared with the 80's of 20th century, 1 times and 3 times has about been respectively increased in service life and cutting efficiency.
In order to improve cutting efficiency, sandwich and more Mingzhi's structure cutter heads, this cutter head and common bulk are developed in the prior art
Cutter head is compared, and increases brittle property nonmetallic materials such as stone material by the scope of freedom of sawing so that stone material is broken to be easier, and is carried
The high sharpness of sawing, to improve cutting efficiency, while also reducing power consumption, reduces cutting cost, however this
Although sandwich improves cutting efficiency with more Mingzhi's structure cutter heads, but due to the diamond layer unbalance stress at center and outside
Weighing apparatus, the stability of cutting needs to improve, and for the cutting technique of stone material, the consumption of diamond saw blade occupy compared with
More costs, therefore also it is necessary to further increase the service life of diamond saw blade.
Invention content
In order to solve above-mentioned technical problem in the prior art, the purpose of the present invention is to provide a kind of energy-efficient Buddha's warrior attendants
Stone saw piece and preparation method thereof.
In order to achieve the above-mentioned object of the invention, present invention employs following technical schemes：
A kind of energy-efficient diamond saw blade, including round steel matrix and the composite multi-layer that is welded in round steel matrix
Diamond segment, it is characterised in that：Including multi-layer diamond incised layer, pass through metal layer between adjacent diamond cut layer
It bonds, the diamond cut layer is made of carcass and the impregnated diamond particles in carcass；And positioned at intermediate gold
The concentration of diamond particles in hard rock incised layer is more than the dense of the diamond particles in the diamond cut layer of both sides
Degree；Tyre body hardness in intermediate diamond cut layer is less than the tyre body hardness in the diamond cut layer of both sides.
Wherein, be located at a concentration of carcass weight of the diamond particles in intermediate diamond cut layer 2.5~
3.5wt% is located at 2.0~3.0wt% of a concentration of carcass weight of the diamond particles in the diamond cut layer of both sides,
The concentration ratio of the diamond particles being located in intermediate diamond cut layer is located at the gold in the diamond cut layer of both sides
High 0.3~0.6 wt% of concentration of hard rock particle.
Wherein, it is 93~100 to be located at the carcass HRB hardness in intermediate diamond cut layer, is located at the diamond of both sides
Carcass HRB hardness in incised layer is 100~108, the carcass HRB hardness ratios in the diamond cut layer positioned at both sides
The carcass HRB hardness being located in intermediate diamond cut layer is high by 5~8.
Wherein, the number of plies of the diamond cut layer is 3 layers or 5 layers, and the number of plies of the metal layer is 2 layers or 4 layers；It is described
The thickness of diamond cut layer is 1.5~3.0mm；The thickness of the metal layer is 0.5~1.2mm.
Wherein, be located at intermediate diamond cut layer and positioned at both sides diamond cut layer by diamond particles with
Carcass powder is formed by hot pressed sintering；Preferably, the temperature of hot pressed sintering be 725~800 DEG C, pressure be 250~
300kg/cm2, soaking time is 150~250 seconds.
Wherein, it is located at bronze powder, 1- of the carcass powder by 30-40wt% used by intermediate diamond cut layer
The pre-alloyed powder of the glass putty of 5wt%, the graphite powder of 0.10-0.15wt%, the atoleine of 0.1-0.6wt% and surplus
Composition.
Wherein, it is located at bronze powder, 1- of the carcass powder by 10-15wt% used by the diamond cut layer of both sides
The pre-alloyed powder of the glass putty of 5wt%, the atoleine of 0.1-0.6wt% and surplus forms.
Wherein, the pre-alloyed powder is FeCuSnNi prealloy powder, and contains 35.5- in the pre-alloyed powder
The Ni of Sn, 11.5-12.2wt% of Cu, 7.5-9.0wt% of 36.5wt% and the Fe of surplus, the pre-alloyed powder
Fisher particle size is 6-8 μm.
The second aspect of the present invention further relates to a kind of preparation method of energy-efficient diamond saw blade.
The preparation method of the energy-efficient diamond saw blade of the present invention, including by round steel matrix and composite multi-layer Buddha's warrior attendant
The step of stone cutter head is welded, and the preparation of the composite multi-layer diamond segment includes the following steps：
(1) diamond particles and carcass powder are uniformly mixed according to proportioning and are cold-pressed into positioned at intermediate diamond base layer
And the diamond base layer positioned at both sides；
(2) bronze powder is cold-pressed to form metal base layer；
(3) it will be sequentially formed positioned at intermediate diamond base layer, the diamond base layer positioned at both sides and metal base layer foundation
Laminated construction；
(4) hot pressed sintering being carried out to laminated construction, the temperature of hot pressed sintering is 725~800 DEG C, pressure is 250~
300kg/cm2, soaking time 150~250 seconds.
Compared with prior art, energy-efficient diamond saw blade of the present invention has the advantages that：
The energy-efficient diamond saw blade of the present invention is applied to processing and the concrete road of the stone materials such as granite, marble
The cutting in face has cutting speed fast, and cutting sharpness is high, the feature that performance is stablized；And energy consumption is advantageously reduced, and is made
Diamond is less without ingredients such as rare Co elements, advantageously reduces tool cost.
Description of the drawings
Fig. 1 is the diagrammatic cross-section of energy-efficient diamond saw blade using the present invention.
Fig. 2 is the structural schematic diagram for the composite multi-layer diamond segment that the saw blade of the present invention uses.
Fig. 3 is that the saw blade of the present invention typically cuts sharpness wave pattern (rated voltage is constant).
Fig. 4 is that the saw blade of comparative example typically cuts sharpness wave pattern (rated voltage is constant).
Specific implementation mode
Composite multi-layer diamond segment of the present invention is further elaborated below with reference to specific embodiment, with
Those skilled in the art is helped to have more complete, accurate and deep understanding to the inventive concept of the present invention, technical solution.
The present invention relates to a kind of energy-efficient diamond saw blades, as shown in Figure 1, energy-efficient diamond saw blade 10 includes one
A circle steel matrix 11, the circle steel matrix 11 are processed into the disk of predetermined diameter and thickness according to being pre-designed by steel plate etc.
Shape, and its center be machined with mounting hole 12 for install by motor-driven transmission shaft, the round steel matrix 11
Chip space 13 is also offered on excircle at equal intervals, and composite multi-layer diamond segment 20 is welded on the round steel matrix
On 11 excircle, high-frequency induction welding technique or laser welding process for example may be used in the welding method.
As shown in Fig. 2, the composite multi-layer diamond segment 20, is spaced by thin layer of diamond 21 and metal bonding coating 22
The lamination sintered body of setting.The thin layer of diamond and metal bonding coating are along perpendicular to round steel matrix table as shown in Figure 1
Direction (direction for being parallel to the central shaft of round steel matrix 11 as shown in Figure 1) the interval setting in face.The thin diamond
The thickness of layer (single layer) is 1.5~5.0mm, preferably 2.0~3.0mm.The thickness of the metal bonding coating (single layer) is 0.5
~1.2mm.The composite multi-layer diamond segment, which is theoretically analyzed, advantageously reduces connecing for cutter head cut surface and cutting material
Contacting surface is accumulated, and etch depth of the diamond to cutting material is improved, to be conducive to improve sharpness.Buddha's warrior attendant of the present invention
Stone thin layer is formed with metal solder by hot pressed sintering by diamond particles.And further, the metal solder is by 18-
The high carbon ferro-chrome of the copper powder of 38wt%, the iron powder of 15-25wt%, the nickel powder of 2-9wt%, the glass putty of 1-6wt%, 2-9wt%
The pre-alloyed powder composition of powder, the middle carbon ferro-boron of 1-6wt%, the atoleine of 0.1-0.9wt% and surplus.The Buddha's warrior attendant
The content of stone particle be metal solder 1.4~4.0wt%, preferably 1.5~3.1wt%, more preferably 1.5~
2.9wt%.The pre-alloyed powder is obtained by chemical coprecipitation, and contains 32-50wt%'s in the pre-alloyed powder
The Re of Ni, 2-10wt% of Cu, 2-9wt% and the Fe of surplus；The average particle diameter of the pre-alloyed powder is 6-9 μ
m.Although the metal solder that the present invention uses is free of expensive and rare Domestic Resources Co, by using above-mentioned chemistry
The pre-alloyed powder of coprecipitation, and high-carbon chromium iron, middle carbon ferro-boron is mixed with conventional Cu, Fe, Ni and Sn powder dispensing makes
With not only significantly reducing hot pressed sintering temperature, but also carcass structure is fine and close, ensure that hot pressed sintering carcass and diamond
Between particle on the basis of good hold, it can also obtain simultaneously and high-speed cutting (concrete, marble and flower hilllock
The high-speed cutting of rock) the tyre body abrasion performance that matches, HRB values can reach 95~108, ensure that in high-speed cutting item
Under part, the self-sharpening of diamond particles so that there is the energy-efficient diamond saw blade being prepared excellent cutting to stablize
Property, it ensure that good performance.
In the embodiment of the present invention and comparative example, the granularity of the diamond particles used is 50/60 (corresponding particle
Size is 300~250 μm).The pre-alloyed powder used contains for FeCuSnNi prealloy powder in the pre-alloyed powder
There are the Ni of Sn, 12.0wt% of Cu, 8.1wt% of 36.0wt% and the Fe of surplus, the Fei Shi grains of the pre-alloyed powder
Degree is 6-8 μm.The group of the bronze powder of use becomes the Sn of 10wt%, the Ti of Ni, 0.9wt% of 1.2wt% and surplus
Cu, the bronze powder are prepared by atomized powder, and 30min, the average grain diameter of obtained bronze powder are heat-treated at 780 DEG C
About 35 μm, and maximum particle diameter is 75 μm or less.It is 30mm that the embodiment of the present invention and comparative example, which are prepared highly, width is
The composite multi-layer diamond segment of 40mm, each composite multi-layer diamond segment include the thin diamond that 3 thickness are 3.0mm
Piece, the bronze powder adhesive layer that setting thickness is 1.0mm between adjacent diamond wafers.The diameter of the round steel matrix used
For 340mm, every energy-efficient diamond saw on piece is welded with 24 composite multi-layer diamond segments.
The preparation method of the energy-efficient diamond saw blade of the present invention is as follows：
1. according to drawing requirement, steel plate quenching heat treatment, tempering is cut by laser shape, tempering, and endoporus, mill are ground in flat surface grinding
Outer circle, deburring make round steel matrix.
2. carcass powder and diamond particles, which are uniformly mixed cold moudling, forms and is cold-pressed into the diamond positioned at centre
Base layer and diamond base layer positioned at both sides, by the diamond base layer and gold positioned at intermediate diamond base layer, positioned at both sides
Belong to base layer foundation and sequentially forms laminated construction and through hot pressed sintering, grinding wheel belt sanding making composite multi-layer diamond segment, heat
The temperature of pressure sintering is 725~800 DEG C, and pressure is 250~300kg/cm2, soaking time 150~250 seconds.
3. laser or high-frequency welding
It will be placed in corresponding matrix location by drawing together with composite multi-layer diamond segment and round steel matrix, it will
The luminous point of laser-beam welding machine is adjusted to cutter head and the suitable position of matrix, starts laser-beam welding machine welding, cutter head and matrix is made to exist
The moment of laser penetration welds together, then with 600N/mm2Strength criterion carries out weld strength to each diamond segment
Detection.
4. high-frequency welding
Cutter head and matrix are mounted on dedicated high-frequency welding frame, matrix surface is cleared up, silver soldering piece is put, using high frequency
Cutter head is welded on side by heating 650/750 or so, is welded and whether the sideshake for measuring cutter head arrangement with dial gauge meets
Drawing requirement.
5. polishing, is examined spray painting
After welding then energy saving high-efficiency diamond saw blade uses L-type grinder buffing diamond first by cutter head medial surface sandblasting
The working face of cutter head, and diamond is made to be exposed, by the sanding machine polishing matrix table of energy saving high-efficiency diamond saw blade after welding
Face is bright, then with 600N/mm2Strength criterion carries out safe welding intensity detection to each diamond segment, unqualified to return
Work, it is qualified then carry out surface lacquer, it dries, to prevent surface oxidisation, last silk-screen, laser marking.
Embodiment 1
The pre-alloyed powder of the bronze powder of 3.0kg, the glass putty of 0.3kg, the graphite powder of 0.01kg and 6.64kg is taken to be put into
After being mixed 30 minutes in mixing tank, the atoleine of 0.05kg and the diamond particles of 0.35kg are added, continue batch mixing 3 hours
Powder cold moudling in mold is poured into afterwards to obtain positioned at intermediate diamond base layer；
It takes the pre-alloyed powder of the bronze powder of 1.0kg, the glass putty of 0.3kg and 8.65kg to be put into mixing tank to mix 30 minutes
Afterwards, the atoleine of 0.05kg and the diamond particles of 0.30kg are added, continues batch mixing and powder is poured into mold after 3 hours
Middle cold moudling obtains the diamond base layer positioned at both sides；
Bronze powder is poured into cold moudling in mold and obtains metal base layer；
By above-mentioned diamond base layer and metal adhesive base interlayer every setting formed laminated construction (3 layers of diamond base layer with
And 2 layers of metal adhesive base layer), hot pressed sintering is then carried out, the temperature of hot pressed sintering is 760 DEG C, pressure 270kg/cm2,
Soaking time is 200 seconds.
It will be placed in corresponding matrix location by drawing together with the composite multi-layer diamond segment and matrix of preparation, it will
The luminous point of laser-beam welding machine is adjusted to cutter head and the suitable position of matrix, starts laser-beam welding machine welding, cutter head and matrix is made to exist
The moment of laser penetration welds together, then with 600N/mm2Strength criterion carries out weld strength to each diamond segment
Detection, then tooth is protected using high-frequency welding, it is after welding that energy-efficient diamond saw blade is bright with sanding machine polishing matrix surface,
Then it is polished with special grinding wheel the working face of diamond segment, and diamond is made to be exposed, then carry out surface lacquer, dried
It is dry, to prevent surface oxidisation, finally with 600N/mm2Strength criterion carries out weld strength detection to each diamond segment, no
Qualification is done over again, qualified then carry out surface lacquer, is dried, to prevent surface oxidisation, last silk-screen, laser marking.
Embodiment 2
The pre-alloyed powder of the bronze powder of 4.0kg, the glass putty of 0.4kg, the graphite powder of 0.01kg and 5.55kg is taken to be put into
After being mixed 30 minutes in mixing tank, the atoleine of 0.04kg and the diamond particles of 0.30kg are added, continue batch mixing 3 hours
Powder cold moudling in mold is poured into afterwards to obtain positioned at intermediate diamond base layer；
It takes the pre-alloyed powder of the bronze powder of 1.5kg, the glass putty of 0.5kg and 7.95kg to be put into mixing tank to mix 30 minutes
Afterwards, the atoleine of 0.05kg and the diamond particles of 0.30kg are added, continues batch mixing and powder is poured into mold after 3 hours
Middle cold moudling obtains the diamond base layer positioned at both sides；
Bronze powder is poured into cold moudling in mold and obtains metal base layer；
By above-mentioned diamond base layer and metal adhesive base interlayer every setting formed laminated construction (3 layers of diamond base layer with
And 2 layers of metal adhesive base layer), hot pressed sintering is then carried out, the temperature of hot pressed sintering is 750 DEG C, pressure 280kg/cm2,
Soaking time is 210 seconds.Diamond particles are made to expose using the working face of grinding wheel belt sanding diamond segment after hot pressed sintering
Out.
It will be placed in corresponding matrix location by drawing together with the composite multi-layer diamond segment and matrix of preparation, it will
The luminous point of laser-beam welding machine is adjusted to cutter head and the suitable position of matrix, starts laser-beam welding machine welding, cutter head and matrix is made to exist
The moment of laser penetration welds together, then with 600N/mm2Strength criterion carries out weld strength to each diamond segment
Detection, then tooth is protected using high-frequency welding, it is after welding that energy-efficient diamond saw blade is bright with sanding machine polishing matrix surface,
Then it is polished with special grinding wheel the working face of diamond segment, and diamond is made to be exposed, then carry out surface lacquer, dried
It is dry, to prevent surface oxidisation, finally with 600N/mm2Strength criterion carries out weld strength detection to each diamond segment, no
Qualification is done over again, qualified then carry out surface lacquer, is dried, to prevent surface oxidisation, last silk-screen, laser marking.
Comparative example 1
The pre-alloyed powder of the bronze powder of 3.0kg, the glass putty of 0.3kg, the graphite powder of 0.01kg and 6.64kg is taken to be put into
After being mixed 30 minutes in mixing tank, the atoleine of 0.05kg and the diamond particles of 0.35kg are added, continue batch mixing 3 hours
Powder is poured into cold moudling in mold afterwards and obtains diamond base layer；Bronze powder is poured into cold moudling in mold and obtains metal
Base layer；Above-mentioned diamond base layer and metal adhesive base interlayer are formed into laminated construction (3 layers of diamond base layer and 2 every setting
Layer metal adhesive base layer), hot pressed sintering is then carried out, the temperature of hot pressed sintering is 760 DEG C, pressure 270kg/cm2, protect
The warm time is 200 seconds.Diamond particles are made to expose using the working face of grinding wheel belt sanding diamond segment after hot pressed sintering
Come.It will be placed in corresponding matrix location by drawing together with the composite multi-layer diamond segment and matrix of preparation, it will
The luminous point of laser-beam welding machine is adjusted to cutter head and the suitable position of matrix, starts laser-beam welding machine welding, cutter head and matrix is made to exist
The moment of laser penetration welds together, then with 600N/mm2Strength criterion carries out weld strength to each diamond segment
Detection, then tooth is protected using high-frequency welding, it is after welding that energy-efficient diamond saw blade is bright with sanding machine polishing matrix surface,
Then it is polished with special grinding wheel the working face of diamond segment, and diamond is made to be exposed, then carry out surface lacquer, dried
It is dry, to prevent surface oxidisation, finally with 600N/mm2Strength criterion carries out weld strength detection to each diamond segment, no
Qualification is done over again, qualified then carry out surface lacquer, is dried, to prevent surface oxidisation, last silk-screen, laser marking.
Comparative example 2
It takes the pre-alloyed powder of the bronze powder of 1.0kg, the glass putty of 0.3kg and 8.65kg to be put into mixing tank to mix 30 minutes
Afterwards, the atoleine of 0.05kg and the diamond particles of 0.30kg are added, continues batch mixing and powder is poured into mold after 3 hours
Middle cold moudling obtains diamond base layer；Bronze powder is poured into cold moudling in mold and obtains metal base layer；By above-mentioned diamond
Base layer forms laminated construction (3 layers of diamond base layer and 2 layers of metal adhesive base with metal adhesive base interlayer every setting
Layer), hot pressed sintering is then carried out, the temperature of hot pressed sintering is 760 DEG C, pressure 270kg/cm2, soaking time is 200 seconds.
Diamond particles are made to be exposed using the working face of grinding wheel belt sanding diamond segment after hot pressed sintering.It will prepare
Composite multi-layer diamond segment and matrix together be placed in corresponding matrix location by drawing, by laser-beam welding machine
Luminous point is adjusted to cutter head and the suitable position of matrix, starts laser-beam welding machine welding, makes cutter head and matrix in the wink of laser penetration
Between weld together, then with 600N/mm2Strength criterion carries out weld strength detection to each diamond segment, then using height
Frequency welding shield tooth, it is after welding that energy-efficient diamond saw blade is bright with sanding machine polishing matrix surface, then use special grinding wheel
The working face of polishing diamond segment, and diamond is made to be exposed, surface lacquer is then carried out, is dried, to prevent surface from giving birth to
Rust, finally with 600N/mm2Strength criterion to each diamond segment carry out weld strength detection, it is unqualified to do over again, it is qualified then
Carry out surface lacquer, drying, to prevent surface oxidisation, last silk-screen, laser marking.
The diamond disc prepared using Examples 1 to 2 and comparative example 1~2 carries out cutting experiment.Then perseverance is used
Fixed rated voltage, and to concrete (compressive resistance 360kgf/cm under the conditions of identical rate (0.8m/min)2) into
The cutting total length of row cutting experiment (cutting-in 50mm), each diamond saw blade is 100m.Fig. 3 and Fig. 4 respectively illustrate reality
Cutting current in the saw blade of example 1 and comparative example 1 is applied as the wave pattern of cutting distance (reflects the wave of seven sharpness
It is dynamic), it is seen that the cutting current that the saw blade prepared using the cutter head of comparative example 1 is applied needed for the starting stage is smaller, but with cutting
The increase of distance is cut, cutting current also fluctuates raising, reflects the increase of Cutting Drag, and to maintain corresponding cutting speed
Energy consumption needed under the conditions of rate increases, simultaneously because cutting performance fluctuation is big, but also the stability of cutting is poor, and uses
The saw blade that cutter head prepared by embodiment 1 is prepared, cutting current is smaller with the increase fluctuation of distance, and averagely cutting electricity
Stream is stablized in 14A or so, it can be seen that cutter head sharpness prepared by embodiment 1 is good, and cutting performance is stablized.Although not shown,
Embodiment 1 also shows similar rule, i.e., the cutter head sharpness that prepared by embodiment 1 is good, and cuts compared with comparative example 2
Performance is cut more to stablize.
In addition, table 1 shows the polishing machine calculated according to above-mentioned cutting experiment.
Table 1
For the ordinary skill in the art, specific embodiment is only exemplarily described the present invention,
But the scope of the present invention is not subject to the restrictions described above, as long as using the various non-realities of technical scheme of the present invention progress
The improvement of matter, or it is not improved technical scheme of the present invention is directly applied into other occasions, the protection in the present invention
Within the scope of.
Claims (10)
1. a kind of energy-efficient diamond saw blade, including round steel matrix and the composite multi-layer gold that is welded in round steel matrix
Diamond tool bit, it is characterised in that：It is viscous by metal layer between adjacent diamond cut layer including multi-layer diamond incised layer
Knot, the diamond cut layer are made of carcass and the impregnated diamond particles in carcass；And positioned at intermediate Buddha's warrior attendant
The concentration of diamond particles in stone incised layer is more than the concentration of the diamond particles in the diamond cut layer of both sides；Position
Tyre body hardness in intermediate diamond cut layer is less than the tyre body hardness in the diamond cut layer of both sides.
2. energy-efficient diamond saw blade according to claim 1, it is characterised in that：Positioned at intermediate diamond cut layer
In diamond particles a concentration of carcass weight 2.5~3.5wt%, be located at both sides diamond cut layer in diamond
2.0~3.0wt% of a concentration of carcass weight of particle, the diamond particles being located in intermediate diamond cut layer
Concentration ratio is located at the high 0.3~0.6wt% of concentration of the diamond particles in the diamond cut layer of both sides.
3. energy-efficient diamond saw blade according to claim 1, it is characterised in that：Positioned at intermediate diamond cut layer
In carcass HRB hardness be 93~100, be located at both sides diamond cut layer in carcass HRB hardness be 100~108, it is described
Carcass HRB hardness in the diamond cut layer of both sides is than the carcass HRB being located in intermediate diamond cut layer
Hardness is high by 5~8.
4. energy-efficient diamond saw blade according to claim 1, it is characterised in that：The number of plies of the diamond cut layer
It it is 3 layers or 5 layers, the number of plies of the metal layer is 2 layers or 4 layers；The thickness of the diamond cut layer is 1.5~3.0mm；It is described
The thickness of metal layer is 0.5~1.2mm.
5. energy-efficient diamond saw blade according to claim 1, it is characterised in that：Positioned at intermediate diamond cut layer
And the diamond cut layer positioned at both sides is formed with carcass powder by hot pressed sintering by diamond particles.
6. energy-efficient diamond saw blade according to claim 5, it is characterised in that：The temperature of hot pressed sintering be 725~
800 DEG C, pressure is 250~300kg/cm2, soaking time is 150~250 seconds.
7. energy-efficient diamond saw blade according to claim 5, it is characterised in that：Positioned at intermediate diamond cut layer
Used carcass powder is by the bronze powder of 30-40wt%, graphite powder, the 0.1- of the glass putty of 1-5wt%, 0.10-0.15wt%
The atoleine of 0.6wt% and the pre-alloyed powder composition of surplus.
8. energy-efficient diamond saw blade according to claim 5, it is characterised in that：Diamond cut layer positioned at both sides
Used carcass powder is by the bronze powder of 10-15wt%, the glass putty of 1-5wt%, the atoleine of 0.1-0.6wt% and remaining
The pre-alloyed powder of amount forms.
9. energy-efficient diamond saw blade according to claim 7 or 8, it is characterised in that：The pre-alloyed powder is
FeCuSnNi prealloy powder, and the Sn of Cu, 7.5-9.0wt% containing 35.5-36.5wt% in the pre-alloyed powder,
The Fisher particle size of the Ni of the 11.5-12.2wt% and Fe of surplus, the pre-alloyed powder are 6-8 μm.
10. the preparation method of energy-efficient diamond saw blade described in claim 1, including by round steel matrix and compound more
The step of layer diamond segment is welded, it is characterised in that the preparation of the composite multi-layer diamond segment includes following step
Suddenly：
(1) according to proportioning diamond particles and carcass powder are uniformly mixed and be cold-pressed into be located at centre diamond base layer and
Diamond base layer positioned at both sides；
(2) bronze powder is cold-pressed to form metal base layer；
(3) lamination will be sequentially formed positioned at intermediate diamond base layer, the diamond base layer positioned at both sides and metal base layer foundation
Structure；
(4) hot pressed sintering is carried out to laminated construction, the temperature of hot pressed sintering is 725~800 DEG C, and pressure is 250~300kg/cm2,
Soaking time 150~250 seconds.
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