CN108748702A - Diamond saw blade - Google Patents
Diamond saw blade Download PDFInfo
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- CN108748702A CN108748702A CN201810620018.XA CN201810620018A CN108748702A CN 108748702 A CN108748702 A CN 108748702A CN 201810620018 A CN201810620018 A CN 201810620018A CN 108748702 A CN108748702 A CN 108748702A
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- powder
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- saw blade
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 181
- 239000010432 diamond Substances 0.000 title claims abstract description 181
- 239000011159 matrix material Substances 0.000 claims abstract description 131
- 229910052751 metal Inorganic materials 0.000 claims abstract description 113
- 239000002184 metal Substances 0.000 claims abstract description 113
- 239000011253 protective coating Substances 0.000 claims abstract description 24
- 239000000956 alloy Substances 0.000 claims abstract description 15
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 15
- 239000000843 powder Substances 0.000 claims description 130
- 239000002245 particle Substances 0.000 claims description 56
- 238000005245 sintering Methods 0.000 claims description 38
- 229910052799 carbon Inorganic materials 0.000 claims description 29
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 claims description 29
- 239000000203 mixture Substances 0.000 claims description 17
- 239000011651 chromium Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 7
- 229910052723 transition metal Inorganic materials 0.000 claims description 6
- 150000003624 transition metals Chemical class 0.000 claims description 6
- 229910016347 CuSn Inorganic materials 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 36
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 51
- 238000002156 mixing Methods 0.000 description 46
- 229910000831 Steel Inorganic materials 0.000 description 43
- 239000010959 steel Substances 0.000 description 43
- 238000007750 plasma spraying Methods 0.000 description 34
- 239000002131 composite material Substances 0.000 description 27
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 24
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 22
- 239000004575 stone Substances 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 17
- 238000001514 detection method Methods 0.000 description 17
- 235000019580 granularity Nutrition 0.000 description 17
- 239000004922 lacquer Substances 0.000 description 17
- 238000005498 polishing Methods 0.000 description 17
- 239000010949 copper Substances 0.000 description 16
- 239000011572 manganese Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 238000000227 grinding Methods 0.000 description 11
- 229910000906 Bronze Inorganic materials 0.000 description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 9
- 239000010974 bronze Substances 0.000 description 9
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 9
- 238000001035 drying Methods 0.000 description 9
- 229910052709 silver Inorganic materials 0.000 description 9
- 239000004332 silver Substances 0.000 description 9
- 238000002791 soaking Methods 0.000 description 9
- 238000005476 soldering Methods 0.000 description 9
- 230000035515 penetration Effects 0.000 description 8
- 238000002224 dissection Methods 0.000 description 6
- 238000003763 carbonization Methods 0.000 description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 4
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 206010017076 Fracture Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000005382 thermal cycling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241000416536 Euproctis pseudoconspersa Species 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000010330 laser marking Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of diamond saw blades, belong to the technical field of diamond tool.The diamond saw blade of the present invention includes circular metal matrix and multiple diamond segments for being arranged on circular metal matrix outer end face; and it is provided with chip space between adjacent diamond segment; circular metal matrix is formed with circular ring shape protective coating on the surface of the diamond segment, and circular ring shape protective coating is made of the hard alloy layer of metal intermediate layer and setting in a metal on interbed with circular metal substrate contact.Wear-resistant protection coating with circular ring shape on the circular ring metal matrix that the diamond saw blade of the present invention uses; effectively prevent erosion of the cutting clast to metallic matrix; it improves the thermal diffusivity of metallic matrix and reduces the vibration between matrix and diamond segment, to be conducive to extend the service life and cutting stability of diamond saw blade.
Description
Technical field
The present invention relates to the technical field of diamond tool, it is more particularly related to a kind of diamond saw blade and
Preparation method.
Background technology
Diamond saw blade is widely used in concrete, stone material, the processing of the hard brittle materials such as ceramics.Diamond saw blade usually by
Circular base is formed with the outer peripheral diamond segment of matrix is welded on.Play dissection in use is diamond tool
Head, and cutter head is constantly consumed in cutting process, and play cutting in diamond segment is the Buddha's warrior attendant in cutter head
Stone.Since the grain size of the synthetic diamond particles of industrialized production is usually 15 ~ 200 mesh, thus diamond particles in the application
It is the cutting effect that the effect for being wrapped in its dissection of competence exertion in metal matrix, and wrapping up determines diamond particles
Energy.Since diamond particles are to be wrapped in metal matrix at random, when work, it is necessary to which wearing away carcass material can just make first
Diamond particles protrude carcass surface, carry out work as micro-cutting sword, it is required that carcass powder can be ground with the speed to match
Damage, and carcass material can also keep high hold to diamond, to obtain good self-sharpening and cutting efficiency.In addition to metal
Other than carcass, the form of diamond segment also has significant impact to the cutting efficiency of diamond.In order to improve cutting efficiency,
Sandwich cutter head is developed in the prior art, and sandwich cutter head increases brittle property nonmetallic materials example compared with blocky cutter head
If stone material is by the scope of freedom of sawing so that stone material is broken to be easier, and the sharpness of sawing is improved, to improve cutting effect
Rate, while power consumption is also reduced, cutting cost is reduced, however sandwich cutter head exacerbates cutting clast to Buddha's warrior attendant when in use
The undercut effect of stone cutter head bottom, be easy so that sandwich cutter head occur separation and fracture risk, so as to cause have to compared with
Early replacement diamond segment so not only wastes the diamond tool head material for not yet playing dissection, but also frequent
Replace the processing efficiency that cutter head also reduces cutting operation.
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 diamond saw blade and
Preparation method.
In order to achieve the above-mentioned object of the invention, present invention employs following technical schemes：
A kind of diamond saw blade, including circular metal matrix and multiple gold for being arranged on the circular metal matrix outer end face
Diamond tool bit, and it is provided with chip space between adjacent diamond segment, it is characterised in that：The circular metal matrix is close
It is formed with circular ring shape protective coating on the surface of the diamond segment, the protective coating with the metallic matrix by contacting
Metal intermediate layer and the hard alloy layer composition being arranged in the metal intermediate layer.
Wherein, the diamond segment is combined with the circular metal matrix by hot pressed sintering or the diamond
Cutter head is welded on the circular metal matrix.
Wherein, the metal intermediate layer by the Ni of 20.1 ~ 22.0wt%, the Mn of 12.2 ~ 13.0wt%, 1.5 ~ 2.5wt% Co
And the Cu and inevitable impurity composition of surplus.
Wherein, the hard alloy layer includes at least one in carbide, nitride or boride selected from transition metal
Kind, the transition metal is selected from W, Ti, Cr, V, Zr or Nb.
Wherein, the diamond segment includes intermediate incised layer, and the side incised layer positioned at intermediate incised layer both sides,
Metal matrix layer is provided between the intermediate incised layer and side incised layer, and the hardness of the side incised layer is more than institute
State the hardness of intermediate incised layer.
Wherein, the intermediate incised layer and side incised layer by carcass metal and diamond particles by the hot pressed sintering by
At；The temperature of hot pressed sintering is 675 ~ 750 DEG C, and pressure is 200~300kg/cm2。
Wherein, the carcass metal of the intermediate incised layer by the Cu powder of 10.0 ~ 12.0wt%, the Mn powder of 1-3wt%, 1.0 ~
The pre-alloyed powder group of the Co powder of 2.5wt%, the high-carbon chromium iron of 8.0 ~ 10.0wt%, the atoleine of 0.1-0.5wt% and surplus
At.
Wherein, the carcass metal of the side incised layer by the Cu powder of 6.0 ~ 8.0wt%, the Mn powder of 1-3wt%, 1.0 ~
The Co powder of 2.5wt%, the high-carbon chromium iron of 8.0 ~ 10.0wt%, the WC powder of 3.0 ~ 5.0wt%, 0.1-0.5wt% atoleine and
The pre-alloyed powder of surplus forms.
Wherein, the high-carbon chromium iron contain the C of Cr, 9.5wt% of 62.0 ~ 72.0wt%, 0.50 ~ 0.10wt% Si and
The Fe of surplus and inevitable impurity.
Wherein, the pre-alloyed powder is CuSn prealloy powder, and the Fisher particle size of the pre-alloyed powder is 6-8 μm；And
And contain the Sn, surplus Cu of 14.2 ~ 15.0wt% in the prealloy powder.
Compared with prior art, diamond saw blade of the invention has the advantages that：
（1）Wear-resistant protection coating with circular ring shape on the circular ring metal matrix that the diamond saw blade of the present invention uses, effectively
Erosion of the cutting clast to metallic matrix is prevented, and improves the thermal diffusivity of metallic matrix and reduces matrix and diamond
Vibration between cutter head, to be conducive to extend the service life and cutting stability of diamond saw blade.
（2）The MULTILAYER COMPOSITE diamond segment that the diamond saw blade of the present invention uses is applied to the cutting processing of concrete,
The dosage of rare metal is not only reduced, and the hot pressed sintering temperature of cutter head is low, has given full play to the cutting of diamond particles
Performance, and improve the cutting efficiency to concrete material.
Description of the drawings
Fig. 1 is the structural schematic diagram of the diamond saw blade of the present invention.
Fig. 2 is cross section structure schematic diagrams of the Fig. 1 along the directions A-A.
Fig. 3 is the structural schematic diagram for the composite diamond cutter head that the diamond saw blade of the present invention uses.
Specific implementation mode
Diamond saw blade of the present invention is further elaborated below with reference to specific embodiment, to help ability
The technical staff in domain has more complete, accurate and deep understanding to the inventive concept of the present invention, technical solution.
As shown in Figure 1, the present invention diamond saw blade include a circular metal matrix 10, the circular metal matrix 10 by
Metallic matrix is processed into the circle of predetermined diameter and thickness.Main body of the metallic matrix 10 as support diamond segment 20, is answered
When with high intensity, and it is unlikely to deform under conditions of use and good toughness, metallic matrix 10 must have under the conditions of cutting operation
There is preferable rigidity, to prevent its deformation in cutting, in addition under the conditions of cutting operation, metallic matrix in use can be by
It will appear flexible deformation under to the comprehensive function of tangential force and normal force, thus need to ensure that the metallic matrix has centainly
Elasticity and toughness, during dissection, diamond segment and meeting companion in the dissection of cutting object such as concrete
It with a large amount of frictional heat, thus needs metallic matrix and diamond segment that there is substantially comparable thermal friction coefficient, especially exists
Under the conditions of the dry cutting operation for not forcing coolant liquid.Thus metallic matrix generally use base steel or nickel-based matrix, from cost angle
Degree consider preferably steel base matrix, such as the circular metal matrix of high-frequency welding may be used 50Mn2V, 65Mn, 75Cr1,
8CrV etc., the circular metal matrix of laser welding is such as may be used 25CrMo, 28CrMo, 35CrMo.Circular metal matrix
10 center is machined with center mounting hole 11, and the mounting hole 11 is for installing drive shaft or working-spindle, in addition it can open
If for the auxiliary mounting hole 12 of assembly flange etc., auxiliary mounting hole 12 is generally arranged at the periphery of center mounting hole 11, and
Its aperture is generally less than the aperture of center mounting hole 11.In addition, circular metal matrix 10 can also offer multiple heat emission holes 13,
The heat emission hole 13 helps to radiate in cutting operation, and prevents the thermal deformation of circular metal matrix 10.And it is described
Circular metal matrix 10 is additionally provided with chip space 15 between adjacent diamond segment 20, and diamond segment 20 is welded on circle
On the outer end face of shape steel matrix 10, high-frequency welding or laser welding for example may be used in welding method（Certain diamond tool
First 20 can also directly be combined by hot pressed sintering with circular metal matrix 10）.Circular metal matrix 10 is close to diamond segment
It is formed with circular ring shape protective coating 30 on 20 surface, can be effectively prevent right by the way that the circular ring shape protective coating 30 is arranged
Concrete carries out erosion of the concrete clast of generation when dissection to 10 excircle near zone of circular metal matrix, to
It can effectively prevent during cutting operation, the improper failure of diamond segment, such as diamond segment and circular metal base
The recycling of circular metal matrix can also be effectively ensured in the situations such as separation and fracture at body in addition；And by setting
The circular ring shape protective coating 30 is set, even if the diamond segment to be arranged to the situation of MULTILAYER COMPOSITE diamond segment, together
Sample can also avoid the risk of the cutter head and separation and fracture at circular metal matrix.Further, as shown in Fig. 2, institute
Protective coating 30 is stated by the metal intermediate layer 31 that is contacted with the metallic matrix 10 and is arranged in the metal intermediate layer 31
Hard alloy layer 32 form.The protective coating 30 can pass through conventional painting method such as vacuum coating（Sputtering, etc. from
Son deposition）Film plating process or spraying method are prepared, and consider from the performance perspective of economy and protective coating, the protection
Coating preferably by spraying, is more preferably prepared by plasma spraying method, and the metal intermediate layer by 20.1 ~
The Cu and inevitable impurity composition of the Ni of 22.0wt%, the Mn of 12.2 ~ 13.0wt%, the Co of 1.5 ~ 2.5wt% and surplus,
The metal intermediate layer compared with conventional bronze metal middle layer, not only have with the comparable coefficient of thermal expansion of steel substrate,
And it has better wetability to hard alloy layer, and it is viscous between hard alloy layer and metallic matrix to significantly improve
Performance is tied, is especially being subjected to multiple high temp thermal cycle（Height when cutting operation warm to room temperature between temperature cycles）Condition
Under still ensure that good adhesion between hard alloy layer and metallic matrix, the thickness of the metal intermediate layer is 0.05 ~
0.25mm.In the present invention, the hard alloy layer generally comprises carbide, nitride or boride selected from transition metal etc.
At least one of hard particles, the transition metal are selected from W, Ti, Cr, V, Zr or Nb, in addition may be used also in the hard alloy layer
With the binder containing cobalt-based, Ni-based, iron-based etc., it can additionally contain the alloying elements such as Cr, W, Si, B, Ru, as preferred
Ground, the weight percent of hard particles is typically larger than 50%, more preferably greater than 75%, the hard alloy in the hard alloy layer
The thickness of layer is 0.05 ~ 0.25mm, and the hard particles are preferably WC.Preferably, the hard alloy layer preferably comprises
The Ni of the WC of 80 ~ 88wt%, the Co of 6 ~ 10wt%, 4 ~ 10wt%.As shown in figure 3, in the present invention, the diamond segment 20 wraps
Include intermediate incised layer 21, and the side incised layer 22 positioned at 21 both sides of intermediate incised layer, the intermediate incised layer 21 and side
Metal matrix layer 23 is provided between incised layer 22, and the hardness of side incised layer 22 is more than the hardness of intermediate incised layer 21.
Specifically, side incised layer 22, metal matrix layer 23, intermediate incised layer 21,22 edge of metal matrix layer 23 and side incised layer
It perpendicular to the direction of circular metal matrix surface（That is the normal orientation of circular metal matrix）It sets gradually.Single incised layer
（Intermediate incised layer or side incised layer）Thickness be 1.5 ~ 3.0mm, preferably 2.0 ~ 3.0 mm.The thickness of single metal body piles
Degree is 0.8 ~ 1.2mm.In the present invention, intermediate incised layer and side incised layer pass through hot pressing by carcass metal and diamond particles
It is sintered.The carcass metal of the intermediate incised layer is by the Cu powder of 10.0 ~ 12.0wt%, Mn powder, the 1.0 ~ 2.5wt% of 1-3wt%
Co powder, the high-carbon chromium iron of 8.0 ~ 10.0wt%, the atoleine of 0.1-0.5wt% and surplus pre-alloyed powder composition.Institute
State the carcass metal of side incised layer by the Cu powder of 6.0 ~ 8.0wt%, the Mn powder of 1-3wt%, the Co powder of 1.0 ~ 2.5wt%, 8.0 ~
The pre-alloyed powder group of the high-carbon chromium iron of 10.0wt%, the WC powder of 3.0 ~ 5.0wt%, the atoleine of 0.1-0.5wt% and surplus
At.Cutting for concrete, 1.5 ~ 3.0wt% of a concentration of carcass weight metal of the diamond particles of use.The pre- conjunction
Bronze end is CuSn prealloy powder, and the Fisher particle size of the pre-alloyed powder is 6-8 μm；And contain in the prealloy powder
The Sn of 14.2 ~ 15.0wt%, surplus Cu.The high-carbon chromium iron contain the C of Cr, 9.5wt% of 62.0 ~ 72.0wt%, 0.50 ~
The Si of the 0.10wt% and Fe of surplus and inevitable impurity.The high-carbon chromium iron is commonly used in iron-based in the present invention
Carcass metal, but inventor has found to be applied in the basic powder based on CuSn prealloy powder, and by side
A small amount of WC powder is introduced in incised layer, ensure that hold of the carcass to diamond particles, and the tyre body hardness formed is moderate,
The good self-sharpening of diamond particles can be kept when being cut to concrete, and side incised layer and centre are cut
The synchronism that layer cuts concrete is cut, cutting stability is improved, and then also improves the cutting of diamond saw blade entirety
Energy and service life.Specifically, using above-mentioned carcass metal, the temperature of thermal sintering is enabled to be not higher than 750 DEG C, and not
Thermocompressed sintering and forming is carried out under sintering temperature higher than 750 DEG C significantly reduces damage of the sintering to diamond particles.Further
Preferably, the temperature of hot pressed sintering is 675 ~ 750 DEG C, and pressure is 200~300kg/cm2。
As illustratively, diamond saw blade of the invention can be prepared by the following method to obtain：
1. according to drawing requirement, 25CrMo steel plates are selected, are tempered after laser cutting, flat surface grinding, endoporus is ground, cylindrical grinding is gone
Burr makes round steel matrix.
2. carcass metal is uniformly mixed cold moudling with diamond particles to form diamond segment blank material and burn through hot pressing
Knot makes diamond segment using grinding wheel belt sanding, and the granularities of the diamond particles used is 50/60, the temperature of hot pressed sintering
Degree is 675 ~ 750 DEG C, and pressure is 200~300kg/cm2, soaking time 100~240 seconds.
3. laser welding
The luminous point of laser-beam welding machine is adjusted to diamond segment and the suitable position of round steel matrix, starts laser-beam welding machine weldering
It connects, so that diamond segment and round steel matrix is welded together, and with 600N/mm2Strength criterion to each diamond segment into
Row weld strength detects.
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 heating
Cutter head is welded on side.
5. plasma spraying
The circular metal matrix is formed with circular ring shape protective coating on the surface of diamond segment, the protective coating by
The metal intermediate layer contacted with the metallic matrix and the hard alloy layer being arranged in metal intermediate layer composition.
6. polishing, is examined spray painting
By the cutter head medial surface sandblasting of diamond saw blade, the working face of grinder buffing cutter head is then used, and diamond is made to expose
Come, with 600N/mm2Strength criterion to each diamond segment carry out safe welding intensity detection, it is unqualified to do over again, it is qualified then into
Row surface lacquer, drying, to prevent surface oxidisation, last silk-screen, laser marking.
The a diameter of 340mm for the round steel matrix that following embodiment and comparative example use, thickness are the circular steel of 2.8mm
12 diamond segments are provided on matrix.The height of diamond segment is 30mm, width 80mm, each composite multi-layer Buddha's warrior attendant
The side incised layer that stone cutter head includes the intermediate incised layer that 1 thickness is 1.5mm and 2 thickness are 1.2mm, intermediate incised layer with
It is the metal matrix layer of 0.8mm thickness between the incised layer of side.
The 2.0wt% of a concentration of carcass weight metal of the diamond particles used in following embodiment and comparative example,
The grain size of diamond particles is 50/60.Pre-alloyed powder is CuSn prealloy powder, and the Fisher particle size of the pre-alloyed powder is 6-
8 μm, the wherein content of Sn is 15.0wt%.The high-carbon chromium iron of use contains the C of Cr, 9.5wt% of 62.0 ~ 72.0wt%, 0.50
The Si of ~ the 0.10wt% and Fe of surplus and inevitable impurity.
Embodiment 1
Take the prealloy powder of the copper powder of 1.0kg, the manganese powder of 0.1kg, the cobalt powder of 0.12kg, the high-carbon chromium iron of 1.0kg, 7.76kg
End is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.02kg and the diamond particles of 0.20kg, continue batch mixing 2
Cold moudling in mold is added in powder after hour and obtains intermediate incised layer blank.
Take the carbonization of the copper powder of 0.6kg, the manganese powder of 0.1kg, the cobalt powder of 0.12kg, the high-carbon chromium iron of 1.0kg, 0.4kg
Tungsten powder, 7.76kg pre-alloyed powder be put into mixing tank mix 30 minutes after, the atoleine and 0.20kg of 0.02kg is added
Diamond particles, continue batch mixing after 2 hours by powder be added mold in cold moudling obtain side incised layer blank.
Take the pre- conjunction of the copper powder of 1.0kg, the manganese powder of 0.1kg, the cobalt powder of 0.12kg, the high-carbon chromium iron of 1.0kg, 7.76kg
Bronze end is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.02kg, continue batch mixing and mould is added in powder after 1 hour
Cold moudling obtains metal matrix layer blank in tool.
According to side incised layer blank, metal matrix layer blank, intermediate incised layer blank, metal matrix layer blank and side
The sequence of incised layer blank is arranged to form diamond segment blank, then carries out hot pressed sintering, the temperature of hot pressed sintering is 720
DEG C, pressure is 250 kg/cm2, soaking time is 200 seconds.
Diamond segment is put on a corresponding position together with round steel matrix by drawing, by laser-beam welding machine
Luminous point is adjusted to diamond segment and the suitable position of round steel matrix, starts laser-beam welding machine and carries out laser welding, makes Buddha's warrior attendant
Stone cutter head and round steel matrix weld together in the moment of laser penetration, then with 600N/mm2Strength criterion is to each Buddha's warrior attendant
Stone cutter head carries out weld strength detection, then carries out high-frequency welding using silver soldering piece, uses energy-efficient diamond saw blade after welding
Sanding machine polishing matrix surface is bright.Circular ring shape protective coating is formed on surface of the round steel matrix close to diamond segment,
First with the Co of Mn, 2.5wt% of Ni, 13.0wt% of 20.1wt% and the Cu of surplus, granularity is prepared using mechanical ball mill
For the composite powder of 360 mesh, plasma spraying is carried out using high energy plasma spraying equipment, the arc current used is 500A, arc
Voltage is 60V, powder feeding rate 40g/min, prepares the metal intermediate layer that thickness is 0.25mm.Then with the Co of 8.0wt%,
Hard particles composite powder prepared by the sintering process of the WC of Ni, 88wt% of 4.0wt%, and the hard particles composite powder
Granularity is 500 mesh, carries out plasma spraying using energetic plasma spraying equipment, the arc current used is 500A, arc voltage
For 72V, powder feeding rate 50g/min, the metal intermediate layer that thickness is 0.15mm is prepared.Then with special grinding wheel polishing diamond
The working face of cutter head, and diamond is made to be exposed, then carries out surface lacquer, dries, to prevent surface oxidisation, finally with
600N/mm2Strength criterion carries out weld strength detection to each diamond segment, qualified then carry out surface lacquer, drying.
Embodiment 2
Take the prealloy powder of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 7.42kg
End is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.03kg and the diamond particles of 0.20kg, continue batch mixing 2
Cold moudling in mold is added in powder after hour and obtains intermediate incised layer blank.
Take the carbonization of the copper powder of 0.8kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 0.5kg
Tungsten powder, 7.32kg pre-alloyed powder be put into mixing tank mix 30 minutes after, the atoleine and 0.20kg of 0.03kg is added
Diamond particles, continue batch mixing after 2 hours by powder be added mold in cold moudling obtain side incised layer blank.
Take the pre- conjunction of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 7.42kg
Bronze end is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.03kg, continue batch mixing and mould is added in powder after 1 hour
Cold moudling obtains metal matrix layer blank in tool.
According to side incised layer blank, metal matrix layer blank, intermediate incised layer blank, metal matrix layer blank and side
The sequence of incised layer blank is arranged to form diamond segment blank, then carries out hot pressed sintering, the temperature of hot pressed sintering is 720
DEG C, pressure is 250 kg/cm2, soaking time is 200 seconds.
Diamond segment is put on a corresponding position together with round steel matrix by drawing, by laser-beam welding machine
Luminous point is adjusted to diamond segment and the suitable position of round steel matrix, starts laser-beam welding machine and carries out laser welding, makes Buddha's warrior attendant
Stone cutter head and round steel matrix weld together in the moment of laser penetration, then with 600N/mm2Strength criterion is to each Buddha's warrior attendant
Stone cutter head carries out weld strength detection, then carries out high-frequency welding using silver soldering piece, uses energy-efficient diamond saw blade after welding
Sanding machine polishing matrix surface is bright.Circular ring shape protective coating is formed on surface of the round steel matrix close to diamond segment,
First with the Co of Mn, 1.5wt% of Ni, 12.2wt% of 22.0wt% and the Cu of surplus, granularity is prepared using mechanical ball mill
For the composite powder of 360 mesh, plasma spraying is carried out using high energy plasma spraying equipment, the arc current used is 500A, arc
Voltage is 60V, powder feeding rate 40g/min, prepares the metal intermediate layer that thickness is 0.25mm.Then with the Co of 10.0wt%,
Hard particles composite powder prepared by the sintering process of the WC of Ni, 88wt% of 2.0wt%, and the hard particles composite powder
Granularity is 500 mesh, carries out plasma spraying using energetic plasma spraying equipment, the arc current used is 500A, arc voltage
For 72V, powder feeding rate 50g/min, the metal intermediate layer that thickness is 0.15mm is prepared.Then with special grinding wheel polishing diamond
The working face of cutter head, and diamond is made to be exposed, then carries out surface lacquer, dries, to prevent surface oxidisation, finally with
600N/mm2Strength criterion carries out weld strength detection to each diamond segment, qualified then carry out surface lacquer, drying.
Embodiment 3
Take the prealloy powder of the copper powder of 1.1kg, the manganese powder of 0.2kg, the cobalt powder of 0.18kg, the high-carbon chromium iron of 0.9kg, 7.59kg
End is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.03kg and the diamond particles of 0.20kg, continue batch mixing 2
Cold moudling in mold is added in powder after hour and obtains intermediate incised layer blank.
Take the carbonization of the copper powder of 0.7kg, the manganese powder of 0.2kg, the cobalt powder of 0.18kg, the high-carbon chromium iron of 0.9kg, 0.3kg
Tungsten powder, 7.69kg pre-alloyed powder be put into mixing tank mix 30 minutes after, the atoleine and 0.20kg of 0.03kg is added
Diamond particles, continue batch mixing after 2 hours by powder be added mold in cold moudling obtain side incised layer blank.
Take the pre- conjunction of the copper powder of 1.1kg, the manganese powder of 0.2kg, the cobalt powder of 0.18kg, the high-carbon chromium iron of 0.9kg, 7.59kg
Bronze end is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.03kg, continue batch mixing and mould is added in powder after 1 hour
Cold moudling obtains metal matrix layer blank in tool.
According to side incised layer blank, metal matrix layer blank, intermediate incised layer blank, metal matrix layer blank and side
The sequence of incised layer blank is arranged to form diamond segment blank, then carries out hot pressed sintering, the temperature of hot pressed sintering is 720
DEG C, pressure is 250 kg/cm2, soaking time is 200 seconds.
Diamond segment is put on a corresponding position together with round steel matrix by drawing, by laser-beam welding machine
Luminous point is adjusted to diamond segment and the suitable position of round steel matrix, starts laser-beam welding machine and carries out laser welding, makes Buddha's warrior attendant
Stone cutter head and round steel matrix weld together in the moment of laser penetration, then with 600N/mm2Strength criterion is to each Buddha's warrior attendant
Stone cutter head carries out weld strength detection, then carries out high-frequency welding using silver soldering piece, uses energy-efficient diamond saw blade after welding
Sanding machine polishing matrix surface is bright.Circular ring shape protective coating is formed on surface of the round steel matrix close to diamond segment,
First with the Co of Mn, 2.0wt% of Ni, 12.5wt% of 21.2wt% and the Cu of surplus, granularity is prepared using mechanical ball mill
For the composite powder of 360 mesh, plasma spraying is carried out using high energy plasma spraying equipment, the arc current used is 500A, arc
Voltage is 60V, powder feeding rate 40g/min, prepares the metal intermediate layer that thickness is 0.25mm.Then with the Co of 6.0wt%,
Hard particles composite powder prepared by the sintering process of the WC of Ni, 88wt% of 6.0wt%, and the hard particles composite powder
Granularity is 500 mesh, carries out plasma spraying using energetic plasma spraying equipment, the arc current used is 500A, arc voltage
For 72V, powder feeding rate 50g/min, the metal intermediate layer that thickness is 0.15mm is prepared.Then with special grinding wheel polishing diamond
The working face of cutter head, and diamond is made to be exposed, then carries out surface lacquer, dries, to prevent surface oxidisation, finally with
600N/mm2Strength criterion carries out weld strength detection to each diamond segment, qualified then carry out surface lacquer, drying.
Comparative example 1
Take the prealloy powder of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 7.42kg
End is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.03kg and the diamond particles of 0.20kg, continue batch mixing 2
Cold moudling in mold is added in powder after hour and obtains intermediate incised layer blank.
Take the pre- conjunction of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 7.42kg
Bronze end be put into mixing tank mix 30 minutes after, the atoleine of 0.03kg and the diamond particles of 0.20kg are added, continue
Powder is added cold moudling in mold after 2 hours and obtains side incised layer blank by batch mixing.
Take the pre- conjunction of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 7.42kg
Bronze end is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.03kg, continue batch mixing and mould is added in powder after 1 hour
Cold moudling obtains metal matrix layer blank in tool.
According to side incised layer blank, metal matrix layer blank, intermediate incised layer blank, metal matrix layer blank and side
The sequence of incised layer blank is arranged to form diamond segment blank, then carries out hot pressed sintering, the temperature of hot pressed sintering is 720
DEG C, pressure is 250 kg/cm2, soaking time is 200 seconds.
Diamond segment is put on a corresponding position together with round steel matrix by drawing, by laser-beam welding machine
Luminous point is adjusted to diamond segment and the suitable position of round steel matrix, starts laser-beam welding machine and carries out laser welding, makes Buddha's warrior attendant
Stone cutter head and round steel matrix weld together in the moment of laser penetration, then with 600N/mm2Strength criterion is to each Buddha's warrior attendant
Stone cutter head carries out weld strength detection, then carries out high-frequency welding using silver soldering piece, uses energy-efficient diamond saw blade after welding
Sanding machine polishing matrix surface is bright.Circular ring shape protective coating is formed on surface of the round steel matrix close to diamond segment,
First with the Co of Mn, 1.5wt% of Ni, 12.2wt% of 22.0wt% and the Cu of surplus, granularity is prepared using mechanical ball mill
For the composite powder of 360 mesh, plasma spraying is carried out using high energy plasma spraying equipment, the arc current used is 500A, arc
Voltage is 60V, powder feeding rate 40g/min, prepares the metal intermediate layer that thickness is 0.25mm.Then with the Co of 10.0wt%,
Hard particles composite powder prepared by the sintering process of the WC of Ni, 88wt% of 2.0wt%, and the hard particles composite powder
Granularity is 500 mesh, carries out plasma spraying using energetic plasma spraying equipment, the arc current used is 500A, arc voltage
For 72V, powder feeding rate 50g/min, the metal intermediate layer that thickness is 0.15mm is prepared.Then with special grinding wheel polishing diamond
The working face of cutter head, and diamond is made to be exposed, then carries out surface lacquer, dries, to prevent surface oxidisation, finally with
600N/mm2Strength criterion carries out weld strength detection to each diamond segment, qualified then carry out surface lacquer, drying.
Comparative example 2
The pre-alloyed powder of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, 8.22kg is taken to be put into mixing tank mixed 30
After minute, the atoleine of 0.03kg and the diamond particles of 0.20kg are added, continues batch mixing and mould is added in powder after 2 hours
Cold moudling obtains intermediate incised layer blank in tool.
Take the prealloy of the copper powder of 0.8kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the tungsten carbide powder of 0.5kg, 8.12kg
Powder be put into mixing tank mix 30 minutes after, the atoleine of 0.03kg and the diamond particles of 0.20kg are added, continue to mix
Powder is added cold moudling in mold after 2 hours and obtains side incised layer blank by material.
The pre-alloyed powder of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, 8.22kg is taken to be put into mixing tank
After 30 minutes mixed, the atoleine of 0.03kg is added, continues batch mixing and cold moudling in powder addition mold is obtained into gold after 1 hour
Belong to body piles blank.
According to side incised layer blank, metal matrix layer blank, intermediate incised layer blank, metal matrix layer blank and side
The sequence of incised layer blank is arranged to form diamond segment blank, then carries out hot pressed sintering, the temperature of hot pressed sintering is 720
DEG C, pressure is 250 kg/cm2, soaking time is 200 seconds.
Diamond segment is put on a corresponding position together with round steel matrix by drawing, by laser-beam welding machine
Luminous point is adjusted to diamond segment and the suitable position of round steel matrix, starts laser-beam welding machine and carries out laser welding, makes Buddha's warrior attendant
Stone cutter head and round steel matrix weld together in the moment of laser penetration, then with 600N/mm2Strength criterion is to each Buddha's warrior attendant
Stone cutter head carries out weld strength detection, then carries out high-frequency welding using silver soldering piece, uses energy-efficient diamond saw blade after welding
Sanding machine polishing matrix surface is bright.Circular ring shape protective coating is formed on surface of the round steel matrix close to diamond segment,
First with the Co of Mn, 1.5wt% of Ni, 12.2wt% of 22.0wt% and the Cu of surplus, granularity is prepared using mechanical ball mill
For the composite powder of 360 mesh, plasma spraying is carried out using high energy plasma spraying equipment, the arc current used is 500A, arc
Voltage is 60V, powder feeding rate 40g/min, prepares the metal intermediate layer that thickness is 0.25mm.Then with the Co of 10.0wt%,
Hard particles composite powder prepared by the sintering process of the WC of Ni, 88wt% of 2.0wt%, and the hard particles composite powder
Granularity is 500 mesh, carries out plasma spraying using energetic plasma spraying equipment, the arc current used is 500A, arc voltage
For 72V, powder feeding rate 50g/min, the metal intermediate layer that thickness is 0.15mm is prepared.Then with special grinding wheel polishing diamond
The working face of cutter head, and diamond is made to be exposed, then carries out surface lacquer, dries, to prevent surface oxidisation, finally with
600N/mm2Strength criterion carries out weld strength detection to each diamond segment, qualified then carry out surface lacquer, drying.
Comparative example 3
Take the pre-alloyed powder of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the tungsten carbide powder of 0.8kg, 7.42kg
It is put into after being mixed 30 minutes in mixing tank, the atoleine of 0.03kg and the diamond particles of 0.20kg is added, it is small to continue batch mixing 2
When after by powder be added mold in cold moudling obtain intermediate incised layer blank.
Take the prealloy of the copper powder of 0.8kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the tungsten carbide powder of 1.3kg, 7.32kg
Powder be put into mixing tank mix 30 minutes after, the atoleine of 0.03kg and the diamond particles of 0.20kg are added, continue to mix
Powder is added cold moudling in mold after 2 hours and obtains side incised layer blank by material.
Take the prealloy of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the tungsten carbide powder of 0.8kg, 7.42kg
Powder is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.03kg, continue batch mixing and mold is added in powder after 1 hour
Middle cold moudling obtains metal matrix layer blank.
According to side incised layer blank, metal matrix layer blank, intermediate incised layer blank, metal matrix layer blank and side
The sequence of incised layer blank is arranged to form diamond segment blank, then carries out hot pressed sintering, the temperature of hot pressed sintering is 720
DEG C, pressure is 250 kg/cm2, soaking time is 200 seconds.
Diamond segment is put on a corresponding position together with round steel matrix by drawing, by laser-beam welding machine
Luminous point is adjusted to diamond segment and the suitable position of round steel matrix, starts laser-beam welding machine and carries out laser welding, makes Buddha's warrior attendant
Stone cutter head and round steel matrix weld together in the moment of laser penetration, then with 600N/mm2Strength criterion is to each Buddha's warrior attendant
Stone cutter head carries out weld strength detection, then carries out high-frequency welding using silver soldering piece, uses energy-efficient diamond saw blade after welding
Sanding machine polishing matrix surface is bright.Circular ring shape protective coating is formed on surface of the round steel matrix close to diamond segment,
First with the Co of Mn, 1.5wt% of Ni, 12.2wt% of 22.0wt% and the Cu of surplus, granularity is prepared using mechanical ball mill
For the composite powder of 360 mesh, plasma spraying is carried out using high energy plasma spraying equipment, the arc current used is 500A, arc
Voltage is 60V, powder feeding rate 40g/min, prepares the metal intermediate layer that thickness is 0.25mm.Then with the Co of 10.0wt%,
Hard particles composite powder prepared by the sintering process of the WC of Ni, 88wt% of 2.0wt%, and the hard particles composite powder
Granularity is 500 mesh, carries out plasma spraying using energetic plasma spraying equipment, the arc current used is 500A, arc voltage
For 72V, powder feeding rate 50g/min, the metal intermediate layer that thickness is 0.15mm is prepared.Then with special grinding wheel polishing diamond
The working face of cutter head, and diamond is made to be exposed, then carries out surface lacquer, dries, to prevent surface oxidisation, finally with
600N/mm2Strength criterion carries out weld strength detection to each diamond segment, qualified then carry out surface lacquer, drying.
Cutting experiment is carried out using embodiment 1-3 and comparative example the 1-3 diamond saw blade prepared, using cutting machine（Work(
Rate is 5.0kW）Using constant pressure to concrete（Compressive resistance is 300kgf/ cm2）(cutting-in 5cm) is cut, is cut
The cutting experiment that length is 200m is cut, the results are shown in Table 1 for cutting experiment.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Average cutting speed（m/min） | 0.81 | 0.87 | 0.83 | 0.72 | 0.65 | 0.85 |
| Cutting speed range（m/min） | 0.72-0.90 | 0.81-0.96 | 0.76-0.90 | 0.60-0.85 | 0.52-0.82 | 0.60-1.08 |
| Polishing machine（m2/mm） | 2.8 | 3.0 | 2.7 | 2.3 | 1.8 | 2.7 |
Comparative example 4
Take the prealloy powder of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 7.42kg
End is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.03kg and the diamond particles of 0.20kg, continue batch mixing 2
Cold moudling in mold is added in powder after hour and obtains intermediate incised layer blank.
Take the carbonization of the copper powder of 0.8kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 0.5kg
Tungsten powder, 7.32kg pre-alloyed powder be put into mixing tank mix 30 minutes after, the atoleine and 0.20kg of 0.03kg is added
Diamond particles, continue batch mixing after 2 hours by powder be added mold in cold moudling obtain side incised layer blank.
Take the pre- conjunction of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 7.42kg
Bronze end is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.03kg, continue batch mixing and mould is added in powder after 1 hour
Cold moudling obtains metal matrix layer blank in tool.
According to side incised layer blank, metal matrix layer blank, intermediate incised layer blank, metal matrix layer blank and side
The sequence of incised layer blank is arranged to form diamond segment blank, then carries out hot pressed sintering, the temperature of hot pressed sintering is 720
DEG C, pressure is 250 kg/cm2, soaking time is 200 seconds.
Diamond segment is put on a corresponding position together with round steel matrix by drawing, by laser-beam welding machine
Luminous point is adjusted to diamond segment and the suitable position of round steel matrix, starts laser-beam welding machine and carries out laser welding, makes Buddha's warrior attendant
Stone cutter head and round steel matrix weld together in the moment of laser penetration, then with 600N/mm2Strength criterion is to each Buddha's warrior attendant
Stone cutter head carries out weld strength detection, then carries out high-frequency welding using silver soldering piece, uses energy-efficient diamond saw blade after welding
Sanding machine polishing matrix surface is bright.Circular ring shape protective coating is formed on surface of the round steel matrix close to diamond segment,
First with the Sn of Mn, 6.0wt% of Ni, 6.0wt% of 10.0wt% and the Cu of surplus, granularity is prepared using mechanical ball mill
For the composite powder of 360 mesh, plasma spraying is carried out using high energy plasma spraying equipment, the arc current used is 500A, arc
Voltage is 60V, powder feeding rate 40g/min, prepares the metal intermediate layer that thickness is 0.25mm.Then with the Co of 10.0wt%,
Hard particles composite powder prepared by the sintering process of the WC of Ni, 88wt% of 2.0wt%, and the hard particles composite powder
Granularity is 500 mesh, carries out plasma spraying using energetic plasma spraying equipment, the arc current used is 500A, arc voltage
For 72V, powder feeding rate 50g/min, the metal intermediate layer that thickness is 0.15mm is prepared.Then with special grinding wheel polishing diamond
The working face of cutter head, and diamond is made to be exposed, then carries out surface lacquer, dries, to prevent surface oxidisation, finally with
600N/mm2Strength criterion carries out weld strength detection to each diamond segment, qualified then carry out surface lacquer, drying.
Comparative example 5
Take the prealloy powder of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 7.42kg
End is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.03kg and the diamond particles of 0.20kg, continue batch mixing 2
Cold moudling in mold is added in powder after hour and obtains intermediate incised layer blank.
Take the carbonization of the copper powder of 0.8kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 0.5kg
Tungsten powder, 7.32kg pre-alloyed powder be put into mixing tank mix 30 minutes after, the atoleine and 0.20kg of 0.03kg is added
Diamond particles, continue batch mixing after 2 hours by powder be added mold in cold moudling obtain side incised layer blank.
Take the pre- conjunction of the copper powder of 1.2kg, the manganese powder of 0.3kg, the cobalt powder of 0.25kg, the high-carbon chromium iron of 0.8kg, 7.42kg
Bronze end is put into mixed 30 minutes in mixing tank after, be added the atoleine of 0.03kg, continue batch mixing and mould is added in powder after 1 hour
Cold moudling obtains metal matrix layer blank in tool.
According to side incised layer blank, metal matrix layer blank, intermediate incised layer blank, metal matrix layer blank and side
The sequence of incised layer blank is arranged to form diamond segment blank, then carries out hot pressed sintering, the temperature of hot pressed sintering is 720
DEG C, pressure is 250 kg/cm2, soaking time is 200 seconds.
Diamond segment is put on a corresponding position together with round steel matrix by drawing, by laser-beam welding machine
Luminous point is adjusted to diamond segment and the suitable position of round steel matrix, starts laser-beam welding machine and carries out laser welding, makes Buddha's warrior attendant
Stone cutter head and round steel matrix weld together in the moment of laser penetration, then with 600N/mm2Strength criterion is to each Buddha's warrior attendant
Stone cutter head carries out weld strength detection, then carries out high-frequency welding using silver soldering piece, uses energy-efficient diamond saw blade after welding
Sanding machine polishing matrix surface is bright.Circular ring shape protective coating is formed on surface of the round steel matrix close to diamond segment,
First with the Sn of Mn, 7.0wt% of Ni, 25wt% of 15.0wt%, 2.0 Co and the Cu of surplus, it is prepared into using mechanical ball mill
To granularity be 360 mesh composite powder, using high energy plasma spraying equipment carry out plasma spraying, the arc current used for
500A, arc voltage 60V, powder feeding rate 40g/min prepare the metal intermediate layer that thickness is 0.25mm.Then with 10.0wt%
Co, 2.0wt% Ni, 88wt% WC the hard particles composite powder for preparing of sintering process, and the hard particles are compound
The granularity of powder be 500 mesh, using energetic plasma spraying equipment carry out plasma spraying, the arc current used for 500A,
Arc voltage is 72V, powder feeding rate 50g/min, prepares the metal intermediate layer that thickness is 0.15mm.Then it is polished with special grinding wheel
The working face of diamond segment, and diamond is made to be exposed, surface lacquer is then carried out, is dried, to prevent surface oxidisation, most
Afterwards with 600N/mm2Strength criterion carries out weld strength detection to each diamond segment, qualified then carry out surface lacquer, drying.
The protective coating prepared to embodiment 2, comparative example 4, comparative example 5 carries out cutting sampling, then carries out thermal cycle examination
It tests, the progress of each sample is heated to 350 DEG C by room temperature in heating furnace（20min）, then cool to room temperature（40 min）Heat
Cycle 20 times, then measure embodiment 2, comparative example 4, comparative example 5 prepare protective coating respectively before and after thermal cycling test with
The adhesion strength of steel matrix（5 samples are respectively taken to be averaged）, the results are shown in Table 2.
2 adhesion strength of table（MPa）
| Embodiment 2 | Comparative example 4 | Comparative example 5 | |
| Before thermal cycling test | 125 | 128 | 123 |
| After thermal cycling test | 107 | 59 | 43 |
For the ordinary skill in the art, specific embodiment is only exemplarily described the present invention, but this
The range of invention is not subject to the restrictions described above, as long as use the various unsubstantialities of technical scheme of the present invention progress
Improve, or it is not improved technical scheme of the present invention is directly applied into other occasions, protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of diamond saw blade, including circular metal matrix and it is arranged multiple on the circular metal matrix outer end face
Diamond segment, and it is provided with chip space between adjacent diamond segment, it is characterised in that：The circular metal matrix leans on
It is formed with circular ring shape protective coating on the surface of the nearly diamond segment, the protective coating with the metallic matrix by contacting
Metal intermediate layer and be arranged in the metal intermediate layer hard alloy layer composition.
2. diamond saw blade according to claim 1, it is characterised in that：The diamond segment and the circular metal base
Body is combined by hot pressed sintering or the diamond segment is welded on the circular metal matrix.
3. diamond saw blade according to claim 1, it is characterised in that：The metal intermediate layer is by 20.1 ~ 22.0wt%'s
The Cu and inevitable impurity composition of Ni, the Mn of 12.2 ~ 13.0wt%, the Co of 1.5 ~ 2.5wt% and surplus.
4. diamond saw blade according to claim 3, it is characterised in that：The hard alloy layer includes to be selected from transition metal
At least one of carbide, nitride or boride, the transition metal is selected from W, Ti, Cr, V, Zr or Nb.
5. diamond saw blade according to claim 1, it is characterised in that：The diamond segment includes intermediate incised layer,
And the side incised layer positioned at intermediate incised layer both sides, it is provided with metal tire between the intermediate incised layer and side incised layer
Body layer, and the hardness of the side incised layer is more than the hardness of the intermediate incised layer.
6. diamond saw blade according to claim 5, it is characterised in that：The intermediate incised layer and side incised layer are by tire
Body metal is formed with diamond particles by hot pressed sintering；The temperature of hot pressed sintering be 675 ~ 750 DEG C, pressure be 200~
300kg/cm2。
7. diamond saw blade according to claim 6, it is characterised in that：The carcass metal of the intermediate incised layer is by 10.0
The Cu powder of ~ 12.0wt%, the Mn powder of 1-3wt%, the Co powder of 1.0 ~ 2.5wt%, the high-carbon chromium iron of 8.0 ~ 10.0wt%, 0.1-
The atoleine of 0.5wt% and the pre-alloyed powder composition of surplus.
8. diamond saw blade according to claim 6, it is characterised in that：The carcass metal of the side incised layer by 6.0 ~
The Cu powder of 8.0wt%, the Mn powder of 1-3wt%, the Co powder of 1.0 ~ 2.5wt%, the high-carbon chromium iron of 8.0 ~ 10.0wt%, 3.0 ~ 5.0wt%
WC powder, 0.1-0.5wt% atoleine and surplus pre-alloyed powder composition.
9. diamond saw blade according to claim 7 or 8, it is characterised in that：The high-carbon chromium iron contains 62.0 ~
The C of Cr, 9.5wt% of 72.0wt%, the Fe of the Si of 0.50 ~ 0.10wt% and surplus and inevitable impurity.
10. diamond saw blade according to claim 7 or 8, it is characterised in that：The pre-alloyed powder is CuSn prealloys
The Fisher particle size of powder, the pre-alloyed powder is 6-8 μm；And contain the Sn of 14.2 ~ 15.0wt% in the prealloy powder, it is remaining
Amount is Cu.
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| CN109482863A (en) * | 2018-12-29 | 2019-03-19 | 郑州机械研究所有限公司 | Mixed-powder for diamond saw blade |
| CN110744063A (en) * | 2019-09-05 | 2020-02-04 | 江苏锋泰工具有限公司 | Preparation method of composite ceramic cutting saw blade |
| CN111761734A (en) * | 2019-09-05 | 2020-10-13 | 江苏锋泰工具有限公司 | Ceramic cutting saw blade and preparation method thereof |
| CN111775341A (en) * | 2019-09-05 | 2020-10-16 | 江苏锋泰工具有限公司 | Composite diamond saw blade for ceramic cutting and preparation method thereof |
| CN114012179A (en) * | 2021-10-19 | 2022-02-08 | 浙江骏业工具有限公司 | High-strength heat-resistant chip removal titanium film saw blade and processing technology thereof |
| CN114888356A (en) * | 2022-06-21 | 2022-08-12 | 谷东锯业(山东)有限公司 | Diamond saw blade machining process of metal ceramic tool bit |
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| CN109482863A (en) * | 2018-12-29 | 2019-03-19 | 郑州机械研究所有限公司 | Mixed-powder for diamond saw blade |
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| CN111761734A (en) * | 2019-09-05 | 2020-10-13 | 江苏锋泰工具有限公司 | Ceramic cutting saw blade and preparation method thereof |
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| CN111761734B (en) * | 2019-09-05 | 2022-04-12 | 江苏锋泰工具有限公司 | Ceramic cutting saw blade and preparation method thereof |
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| CN114012179B (en) * | 2021-10-19 | 2024-03-05 | 浙江骏业工具有限公司 | High-strength heat-resistant chip removal titanium film saw blade and processing technology thereof |
| CN114888356A (en) * | 2022-06-21 | 2022-08-12 | 谷东锯业(山东)有限公司 | Diamond saw blade machining process of metal ceramic tool bit |
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