CN109590475A - A kind of preparation method of big cutter head for cutting the big saw blade of high-hardness stone and the big cutter head - Google Patents
A kind of preparation method of big cutter head for cutting the big saw blade of high-hardness stone and the big cutter head Download PDFInfo
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- CN109590475A CN109590475A CN201910020767.3A CN201910020767A CN109590475A CN 109590475 A CN109590475 A CN 109590475A CN 201910020767 A CN201910020767 A CN 201910020767A CN 109590475 A CN109590475 A CN 109590475A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Mining & Mineral Resources (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The present invention relates to a kind of diamond tools, a kind of big cutter head for cutting the big saw blade of high-hardness stone and the preparation method of the big cutter head are provided, the big cutter head for cutting the big saw blade of high-hardness stone can be used in cutting high rigidity granite, with high-densit carcass, tyre body hardness is high, impact flexibility is good, fine grain high-strength diamond is used simultaneously, reduce the stress of single diamond, it is broken to reduce diamond, the probability to fall off, guarantee that saw blade has the diamond of sword out to continue working, improve cutting sharpness, the webbing layer used in conjunction with cutter head, thin service layer, structure design of the thin inoperative layer as interval, guarantee welding symmetry within 0.1mm, guarantee stable cutting, reduce processing noise.
Description
Technical field
It is the present invention relates to a kind of diamond tool, in particular to a kind of for cutting the big cutter head of the big saw blade of high-hardness stone
And the preparation method of the big cutter head.
Background technique
High rigidity granite, bending strength is high, and contained mineral crystal hardness is high, is firmly combined between crystalline particle, cuts
Material removal in the process is than conventional stone material difficulty, therefore the quarry stone processing efficiency of high hard granite currently on the market is low, logical
The amount of cutting of normal monolithic saw is at 1-3 centimeter, and the amount of the cutting 1-3mm of combination saw, processing efficiency is low, be processing of stone the inside cost most
A high link.And it is currently used for the cutter head of the big saw blade of cutting high rigidity granite, and for cutting ordinary hard stone
The cutter head difference of material saw blade is little, and carcass material hardness is all between HRB 80-90, and toughness is general, and diamond grit is with 40/45
Based on 45/50, the carcass material of this physical property, when cutting high-hardness stone by greater impact power, carcass holds
It is also easy to produce plastic deformation, diamond particles are thick, cause the impact force generated excessive, the broken severity of diamond drop-off；Meanwhile it is existing
The symmetrical precision of cutter head welding for cutting the big saw blade of high rigidity granite is not high, and cutting process saw blade beat is big, and vibration is made
At additional machinery friction, cause huge processing noise and consume big energy.
Summary of the invention
Therefore, in view of the problems of the existing technology, the present invention proposes a kind of for cutting the big saw blade of high-hardness stone
The preparation method of big cutter head and the big cutter head, it is high that the big cutter head for cutting the big saw blade of high-hardness stone can be used in cutting
Hardness granite has high-densit carcass, and tyre body hardness is high, impact flexibility is good, while using fine grain high-strength diamond,
The stress of single diamond is reduced, the probability that diamond is crushed, falls off is reduced, guarantees that saw blade has the diamond of sword out to continue work
Make, improve cutting sharpness, the webbing layer used in conjunction with cutter head, thin service layer, thin inoperative layer are set as the structure at interval
Meter guarantees that welding symmetry within 0.1mm, guarantees stable cutting, reduces processing noise.
To realize above-mentioned technical problem, the solution that the present invention takes are as follows: one kind is for cutting high-hardness stone pit saw
The big cutter head of piece, including work boundary layer, work middle layer and inoperative layer, the work boundary layer with a thickness of 1.5mm, the work
Make middle layer with a thickness of 0.5mm, the inoperative layer with a thickness of 0.5mm；It is equipped between two work boundary layers multiple
The work middle layer, is equipped with the inoperative layer between adjacent work middle layer, the work boundary layer, work middle layer,
The sintering of inoperative layer is integrated；
The work boundary layer is identical with the material of the work middle layer, and the work boundary layer, work middle layer are by metal
Powder and diamond are constituted, and the volume-fraction concentration of diamond is 35%-55% in the work boundary layer, work middle layer；
According to mass percentage, the metal powder includes 10000 mesh of 20%-40% with thin nano silicon nitride titanium powder, 8%-
15% 1000 mesh are with thin ultra-fine copper-tin alloy powder, and 10000 mesh of 20%-40% are with thin nano powder of tungsten carbide, 20%-40%
Cobalt powder；
The inoperative layer is to be made of 1000 mesh with thin ultra-fine Fe powder.
Further, the diamond includes the diamond of 50/60 granularity, the diamond of 60/70 granularity and 70/80
The diamond of degree.
Further, by mass percentage, the diamond include 50/60 granularity of 20%-30% diamond,
The diamond of 70/80 granularity of the diamond and 20%-40% of 60/70 granularity of 40%-60%.
The preparation method of the big cutter head for being used to cut the big saw blade of high-hardness stone, includes the following steps:
Step (1) selects 10000 mesh of 20%-40% with thin nano silicon nitride titanium powder, and 1000 mesh of 8%-15% are with thin ultra-fine
Copper-tin alloy powder, 10000 mesh of 20%-40% are with thin nano powder of tungsten carbide, the cobalt powder of 20%-40%；Each component powder is set
Stirring is broken up to be uniformly mixed in blender, obtains the metal powder for making work boundary layer, the middle layer that works；
Diamond is added in metal powder and stirs evenly by step (2), restores through granulation, according to specification through cold moudling, is made
Work boundary layer green body, work middle layer green body；
Step (3) selects 1000 mesh to prepare inoperative layer green body with thin ultra-fine Fe powder；
Step (4) by work boundary layer green body, work middle layer green body, the die-filling sizing of inoperative layer green body, wherein two working edges
It is equipped with multiple work middle layer green bodies between layer green body, is equipped with inoperative layer green body between adjacent work middle layer green body；With
It is placed in hot isostatic pressure stove and is sintered, pressurizes, cooling down decompression, be made described for cutting the big saw blade of high-hardness stone
Big cutter head.
Further, the sintering process of hot isostatic pressure stove are as follows: vacuumize → temperature is carried out by the speed of 80 DEG C/min
Degree heating → up to 650 ° -680 °, heat preservation 10 minutes → by the speed of 40 DEG C/min carry out temperature heating → up to 740 ° -780 °, protect
Temperature 20 minutes → by the speed of 40 DEG C/min carries out temperature heating → up to 840 ° -950 °, and heat preservation 30 minutes → fill Ar is pressurized to
5Mpa, cooling decompression after heat preservation 30 minutes.
By using preceding solution, the beneficial effects of the present invention are: that designs as described above is used to cut high rigidity
The big cutter head of the big saw blade of stone material has the advantage that compared with the existing technology
1, the fine grain high-strength diamond of more granularities is used, the stress of single diamond is reduced, it is broken, de- to reduce diamond
The probability fallen guarantees that saw blade has the diamond of sword out to continue working.
2, work boundary layer, work middle layer carcass metal powder in add nano powder of tungsten carbide, increase the hard of carcass
Degree, and to Co(cobalt) carcass plays the role of the fixed effect of pinning, play dispersion-strengtherning；Nano silicon nitride titanium powder is added, no
It can only refine crystal grain, can also form whisker structure in the tissue that WC-Co alloy is main phase, more raising alloy rigidity and tough
Property；During the work time, Diamond Cutting stress is transmitted to carcass, carcass material because there is the support of titanium nitride and tungsten carbide,
The critical force for generating plastic deformation greatly increases, that is, substantially increases the holding power of diamond；In addition, ultrafine tungsten carbide,
The sintered body of titanium nitride and cobalt, and there is good impact flexibility, guarantee the shock resistance of cutter head, the heat of the two and Co carcass
The coefficient of expansion is close, and the carcass internal stress worked it out is small, is well bonded, and it is good to finally obtain hardness height, impact flexibility
Excellent carcass material.
3, using thickness work boundary layer, thin work middle layer, the structure design along with thin inoperative layer as interval, welding
Process guarantees within welding symmetry 0.1mm that welding, which finishes, examines saw bit matrix flatness.Good welding symmetry guarantees
The stationarity of cutting process saw blade.Boundary layer thickness 1.5mm can ensure certain intensity, the saw blade being able to bear in cutting process
Impact is vibrated and cut, the continued wear that cutting side faces cutter head is resisted, guarantees cutter head steady feed in joint-cutting；0.5mm is thin
Work middle layer and inoperative layer, admant material cut surface can be processed to tiny zigzag wave cut surface, pinnacle area
Domain stone particles are carried over saw blade rotation Automatic-falling.
In conclusion the big cutter head for cutting the big saw blade of high-hardness stone passes through fine diamond, high rigidity, high-ductility
Property main body powder carry out carcass design, increases the elasticity modulus of carcass, increase diamond holding power, granularity reduce make single
The stress of diamond becomes smaller, and reduces the broken and expulsion rate of diamond, improves cutting performance；Meanwhile high-intensitive, high resiliency mould
The carcass material of amount, high tenacity enables cutter head in the case where the thickness bottom that works is reduced to 0.5mm, still guarantees enough
Intensity, thinner working lining and non-layer advantageously form serrulate cutting lines, make the more efficient earthquake of convex portion
Broken, cutting energy consumption reduces by 20%, and efficiency improves 30% or more.
Detailed description of the invention
The structural schematic diagram in Fig. 1 embodiment of the present invention cutting face.
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below with reference to specific embodiment, how skill is applied to the present invention whereby
Art means solve technical problem, and the realization process for reaching technical effect can fully understand and implement.If not referring in particular to
Conventional means bright, that technological means employed in embodiment is well known to those skilled in the art, used reagent and production
Product are also available commercial.The various processes and method being not described in detail are conventional methods as known in the art, used
Reagent is the common agents being commercially available by commercial sources.
It is a kind of for cutting the big cutter head of the big saw blade of high-hardness stone, including work boundary layer 1, work middle layer 2 and non-work
Make layer 3, the work boundary layer 1 with a thickness of 1.5mm, the work middle layer 2 with a thickness of 0.5mm, the inoperative layer 3
With a thickness of 0.5mm；Between two work boundary layers 1 be equipped with multiple work middle layers 2, adjacent work middle layer 2 it
Between be equipped with the inoperative layer 3, the work boundary layer 1, work middle layer 2, inoperative layer 3 sintering be integrated；
The work boundary layer 1 is identical with the material of the work middle layer 2, the work boundary layer 1, work middle layer 2 be by
Metal powder and diamond are constituted, and the volume-fraction concentration of diamond is 35%- in the work boundary layer 1, work middle layer 2
55%；By mass percentage, the diamond includes the diamond of 50/60 granularity of 20%-30%, 60/70 of 40%-60%
The diamond of 70/80 granularity of the diamond and 20%-40% of degree；According to mass percentage, the metal powder includes 20%-
40% 10000 mesh with thin nano silicon nitride titanium powder, 1000 mesh of 8%-15% with thin ultra-fine copper-tin alloy powder, 20%-40%'s
10000 mesh are with thin nano powder of tungsten carbide, the cobalt powder of 20%-40%；
The inoperative layer 3 is to be made of 1000 mesh with thin ultra-fine Fe powder.
The preparation method of the big cutter head for being used to cut the big saw blade of high-hardness stone, includes the following steps:
Step (1) selects 10000 mesh of 20%-40% with thin nano silicon nitride titanium powder, and 1000 mesh of 8%-15% are with thin ultra-fine
Copper-tin alloy powder, 10000 mesh of 20%-40% are with thin nano powder of tungsten carbide, the cobalt powder of 20%-40%；Each component powder is set
Stirring is broken up to be uniformly mixed in blender, obtains the metal powder for making work boundary layer, the middle layer that works；
Diamond is added in metal powder and stirs evenly by step (2), restores through granulation, according to specification through cold moudling, is made
Work boundary layer green body, work middle layer green body；
Step (3) selects 1000 mesh to prepare inoperative layer green body with thin ultra-fine Fe powder；
Step (4) by work boundary layer green body, work middle layer green body, the die-filling sizing of inoperative layer green body, wherein two working edges
It is equipped with multiple work middle layer green bodies between layer green body, is equipped with inoperative layer green body between adjacent work middle layer green body；With
It is placed in hot isostatic pressure stove and is sintered, pressurizes, cooling down decompression, be made described for cutting the big saw blade of high-hardness stone
Big cutter head.
Wherein, the sintering process of hot isostatic pressure stove are as follows: vacuumize → temperature heating is carried out by the speed of 80 DEG C/min
→ up to 650 ° -680 °, heat preservation 10 minutes → by the speed of 40 DEG C/min carries out temperature heating → up to 740 ° -780 °, keeps the temperature 20 points
Clock → by the speed of 40 DEG C/min carries out temperature heating → up to 840 ° -950 °, and heat preservation 30 minutes → fill Ar is pressurized to 5Mpa, keeps the temperature
Cooling decompression after 30 minutes.
That designs in summary is used to cut the big cutter head of the big saw blade of high-hardness stone, has high mechanical to diamond
Holding force has suitable wear resistance again, meets market development requirement, and suitable for the cutting requirement of high-hardness stone, practicability is high.
The foregoing descriptions are merely the embodiment using this origination techniques content, any those skilled in the art use this wound
Make done modifications and changes, all belong to the scope of the patents of this creation opinion, and is not limited to those disclosed embodiments.
Claims (5)
1. a kind of for cutting the big cutter head of the big saw blade of high-hardness stone, it is characterised in that: including work boundary layer, work middle layer
With inoperative layer, the work boundary layer with a thickness of 1.5mm, the work middle layer with a thickness of 0.5mm, the inoperative layer
With a thickness of 0.5mm；Multiple work middle layers are equipped between two work boundary layers, between adjacent work middle layer
Equipped with the inoperative layer, the work boundary layer, work middle layer, the sintering of inoperative layer are integrated；
The work boundary layer is identical with the material of the work middle layer, and the work boundary layer, work middle layer are by metal
Powder and diamond are constituted, and the volume-fraction concentration of diamond is 35%-55% in the work boundary layer, work middle layer；
According to mass percentage, the metal powder includes 10000 mesh of 20%-40% with thin nano silicon nitride titanium powder, 8%-
15% 1000 mesh are with thin ultra-fine copper-tin alloy powder, and 10000 mesh of 20%-40% are with thin nano powder of tungsten carbide, 20%-40%
Cobalt powder；
The inoperative layer is to be made of 1000 mesh with thin ultra-fine Fe powder.
2. according to claim 1 for cutting the big cutter head of the big saw blade of high-hardness stone, it is characterised in that: the diamond
The diamond of diamond, 60/70 granularity including 50/60 granularity and the diamond of 70/80 granularity.
3. according to claim 2 for cutting the big cutter head of the big saw blade of high-hardness stone, it is characterised in that: press quality percentage
Number meter, the diamond include 60/70 granularity of the diamond of 50/60 granularity of 20%-30%, 40%-60% diamond and
The diamond of 70/80 granularity of 20%-40%.
4. a kind of for cutting the preparation method of the big cutter head of the big saw blade of high-hardness stone, which comprises the steps of:
Step (1) selects 10000 mesh of 20%-40% with thin nano silicon nitride titanium powder, and 1000 mesh of 8%-15% are with thin ultra-fine
Copper-tin alloy powder, 10000 mesh of 20%-40% are with thin nano powder of tungsten carbide, the cobalt powder of 20%-40%；Each component powder is set
Stirring is broken up to be uniformly mixed in blender, obtains the metal powder for making work boundary layer, the middle layer that works；
Diamond is added in metal powder and stirs evenly by step (2), restores through granulation, according to specification through cold moudling, is made
Work boundary layer green body, work middle layer green body；
Step (3) selects 1000 mesh to prepare inoperative layer green body with thin ultra-fine Fe powder；
Step (4) by work boundary layer green body, work middle layer green body, the die-filling sizing of inoperative layer green body, wherein two working edges
It is equipped with multiple work middle layer green bodies between layer green body, is equipped with inoperative layer green body between adjacent work middle layer green body；With
It is placed in hot isostatic pressure stove and is sintered, pressurizes, cooling down decompression, be made described for cutting the big saw blade of high-hardness stone
Big cutter head.
5. according to claim 4 for cutting the preparation method of the big cutter head of the big saw blade of high-hardness stone, which is characterized in that
The sintering process of hot isostatic pressure stove are as follows: vacuumize → temperature heating → up to 650 ° -680 ° is carried out by the speed of 80 DEG C/min,
Heat preservation 10 minutes → by the speed of 40 DEG C/min carries out temperature heating → up to 740 ° -780 °, heat preservation 20 minutes → press 40 DEG C/min
Speed carry out temperature heating → up to 840 ° -950 °, heat preservation 30 minutes → fill Ar is pressurized to 5Mpa, cooling drop after heat preservation 30 minutes
Pressure.
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| CN201910020767.3A CN109590475B (en) | 2019-01-09 | 2019-01-09 | Large cutter head for cutting large high-hardness stone saw blade and preparation method of large cutter head |
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| CN201910020767.3A CN109590475B (en) | 2019-01-09 | 2019-01-09 | Large cutter head for cutting large high-hardness stone saw blade and preparation method of large cutter head |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586934A (en) * | 2019-09-29 | 2019-12-20 | 河南工业大学 | Preparation method of diamond tool |
| CN111037754A (en) * | 2019-12-31 | 2020-04-21 | 浙江省永康市金都工贸有限公司 | Trapezoidal cutter head for cutting stone and preparation method thereof |
| CN112238220A (en) * | 2020-10-14 | 2021-01-19 | 泉州众志金刚石工具有限公司 | Interlayer matrix material and preparation method of diamond tool bit |
| CN113182522A (en) * | 2021-03-24 | 2021-07-30 | 郑州磨料磨具磨削研究所有限公司 | Hot isostatic pressing method for degreasing and sintering metal ultrathin grinding wheel |
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| CN110586934A (en) * | 2019-09-29 | 2019-12-20 | 河南工业大学 | Preparation method of diamond tool |
| CN111037754A (en) * | 2019-12-31 | 2020-04-21 | 浙江省永康市金都工贸有限公司 | Trapezoidal cutter head for cutting stone and preparation method thereof |
| CN112238220A (en) * | 2020-10-14 | 2021-01-19 | 泉州众志金刚石工具有限公司 | Interlayer matrix material and preparation method of diamond tool bit |
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| CN113182522A (en) * | 2021-03-24 | 2021-07-30 | 郑州磨料磨具磨削研究所有限公司 | Hot isostatic pressing method for degreasing and sintering metal ultrathin grinding wheel |
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|---|---|
| CN109590475B (en) | 2021-03-26 |
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