CN106182448A - Sandwich-type gang saw tool bit and manufacture method thereof - Google Patents
Sandwich-type gang saw tool bit and manufacture method thereof Download PDFInfo
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- CN106182448A CN106182448A CN201610689806.5A CN201610689806A CN106182448A CN 106182448 A CN106182448 A CN 106182448A CN 201610689806 A CN201610689806 A CN 201610689806A CN 106182448 A CN106182448 A CN 106182448A
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Abstract
The present invention proposes a kind of sandwich-type gang saw tool bit and manufacture method thereof, and this kind of cutter head in use can remain preferable cutting ability, and then ensure crudy and service life.The sandwich-type gang saw tool bit of the present invention is provided with the cutting portion being made up of bortz powder and function metal powder, and described cutting portion includes at least two-layer working lining, is transition zone, and the both sides of this sandwich-type gang saw tool bit are working lining between adjacent two working linings；Wherein the granularity of the bortz powder in working lining is less than the granularity of the bortz powder in transition zone, and the concentration of the bortz powder in working lining is more than the concentration of the bortz powder in transition zone；The hardness of the alloy carcass of working lining is more than the hardness of the alloy carcass of transition zone.The method for manufacturing tool bit of the present invention can accurately control working lining and the composition of transition zone and shape, and then in use remains the sharpness of cutter head, and improves the guidance quality of cutter head, improves cut quality and extends the service life of cutter head.
Description
Technical field
The present invention relates to, for cutting or the cutter of grinding building stones, be specifically related to cutter head and the manufacturer thereof of gang saw
Method.
Background technology
Gang saw is to commonly use and one of state-of-the-art instrument most in the cutting of current rough stone block, have working (machining) efficiency high,
The features such as plate production rate is high, cutting accuracy is high, plate surface evenness is good, board dimension motility height, water and electric saving.Traditional gang saw cutter
Head is that uniform in material is consistent, and in use it can be gradually worn down, and cross section becomes arc, and cutter head two sides are thinning, this
Sample may result in shear force dispersion, not only adds the load of gang mill, and can affect the quality of processing.
Summary of the invention
The purpose of the present invention is to propose to a kind of sandwich-type gang saw tool bit and manufacture method thereof, this kind of cutter head can use
Cheng Zhong, remains preferable cutting ability, and then ensures crudy and service life.
The sandwich-type gang saw tool bit of the present invention is provided with the cutting portion being made up of bortz powder and function metal powder, it is critical only that
Described cutting portion includes at least two-layer working lining, is transition zone between adjacent two working linings, and the two of this sandwich-type gang saw tool bit
Side is working lining；Wherein the granularity of the bortz powder in working lining is less than the granularity of the bortz powder in transition zone, working lining
In the concentration of bortz powder more than the concentration of the bortz powder in transition zone, the hardness of the alloy carcass of working lining is more than transition
The hardness of the golden carcass of lamination.
In the course of the work, working lining and transition zone are worn and torn by building stones simultaneously, but due to the bortz powder of two-layer
Granularity is different with concentration, the hardness of alloy carcass is different, cause the rub proofness of working lining to be better than transition zone, so relatively
For a long time after abrasion, the abrasion amplitude of transition zone is greater than working lining so that the end face of cutter head is in the position of corresponding transition zone
Form groove.The formation of groove improves the sharpness of working lining, and can play certain guiding merit in cutting process
Can, it is ensured that gang saw tool bit can be advanced by straight line, and cutting effect is more preferable.Transition zone in above-mentioned cutter head still has certain cutting
Cut, grinding capacity, can't significantly affect the stock-removing efficiency of whole cutter head.
Further, the concentration of the bortz powder in described working lining is consistent, the concentration of the bortz powder in transition zone by
Operative end surface is gradually increased to fixing end face.Set the dense of bortz powder in working lining and transition zone by the way
Degree, can control each layer and synchronize abrasion, and then make the degree of depth of groove be maintained at certain limit.
Further, the cross section being parallel to its working lining and transition zone bearing of trend of sandwich-type gang saw tool bit is trapezoidal,
Its stub end is for the one end connected with matrix in sandwich-type gang saw tool bit, so can suitably increase connecing of cutter head and matrix
Contacting surface is amassed, thus ensures the reliability that cutter head is connected with matrix；Or, described sandwich-type gang saw tool bit be perpendicular to its working lining
And the cross section of transition zone bearing of trend is trapezoidal, its little head end is for the one end connected with matrix in sandwich-type gang saw tool bit,
So during cutting building stones, the matrix of cutter head will not be snapped in the joint-cutting of building stones, it is to avoid the matrix of cutter head is by building stones
Abrasion.
It is of course also possible to above two structure is combined, formation following technical proposals: described sandwich-type gang saw tool bit
The first cross section being parallel to it axial trapezoidal, stub end in the first cross section be in sandwich-type gang saw tool bit for matrix
The one end connected；Second cross section being perpendicular to it axial of described sandwich-type gang saw tool bit is trapezoidal, the microcephaly in the second cross section
End is for being used for the one end connected with matrix in sandwich-type gang saw tool bit.
Further, the plated surface of described bortz powder is covered with cobalt nickel powder end coating, and described nickel cobalt (alloy) powder plates
Nikel powder in Ceng, the weight ratio of cobalt powder are 90:10, and nikel powder, the particle diameter of cobalt powder are 2.5～3 microns.Nickel cobalt (alloy) powder is nickel ingot
After cobalt ingot high temperature melting uniform alloy, the alloy powder cool down rapidly, being atomized.Diamond plating is i.e. at vacuum high-temperature
Under state, nickel cobalt (alloy) powder being plated to diamond surface, form micron-sized protective layer, during sintering, this protective layer both subtracted
The hot injury of light diamond and degree of carbonisation, add again the enhanced primary treatment of diamond and metal dust, enhancing metal powder
The end alloy carcass hold to diamond, during cutter head cutwork, diamond postpones to come off, go out sword degree and increase, and increases substantially
The service life of cutter head and working (machining) efficiency.
Further, the particle diameter of the bortz powder in described working lining is 300～425 microns, concentration range be 35%～
70%；Function metal powder in described working lining by cobalt powder, nikel powder, chromium powder, tungsten powder, tungsten carbide powder, iron-copper powder mixing and
Becoming, the particle diameter of cobalt powder and nikel powder is less than 10 microns, and the particle diameter of chromium powder is 30～50 microns, and tungsten powder, the particle diameter of tungsten carbide powder are 80
～100 microns, the particle diameter of iron-copper powder is 20～40 microns；The weight of each composition in function metal powder in described working lining
Ratio is as follows: cobalt powder 60～70%, nikel powder 2～8%, chromium powder 1～3%, tungsten powder 2～8%, tungsten carbide powder 2～6%, iron-copper powder
20～30%；In the functional metal powder of above-mentioned working lining, cobalt powder is main component, and its sintering strength is high, toughness and wearability
Good；The effect of nikel powder is to increase wearability；The effect of chromium powder is to increase the carcass hold to bortz powder；Tungsten powder increases carcass
Hardness and wearability, have certain alloying action with cobalt powder and nikel powder；Tungsten carbide powder is to be present in alloy with simple substance, increases
The hardness of carcass and wearability；The effect of iron-copper powder is that high temperature dispersivity is good, promotes tyre body alloy uniform.Above working lining
Hardness HRB of the carcass after thermal sintering is 102～112.
The particle diameter of the bortz powder in described transition zone is 500～600 microns, and concentration range is 20%～50%；Described mistake
The function metal powder crossed in layer is mixed by copper powder, glass putty, zinc powder, signal bronze powder, cobalt powder, nikel powder, chromium powder, tungsten powder, institute
State in signal bronze powder the content of copper and tin than for 85:15, described copper powder, glass putty, zinc powder, chromium powder, the particle diameter of signal bronze powder
Being 30～50 microns, the particle diameter of cobalt powder and nikel powder is less than 10 microns, and the particle diameter of tungsten powder is 80～100 microns；In described transition zone
Function metal powder in the part by weight of each composition as follows: copper powder 40～54%, glass putty 6～10%, zinc powder 2～10%, signal bronze
Powder 18～30%, cobalt powder 10～20%, nikel powder 3～6%, chromium powder 1～3%, tungsten powder 2～8%.In the function metal powder of transition zone, copper
The effect of powder is to increase toughness and the ductility of carcass；Produce liquid phase when the effect of glass putty is sintering, soften carcass, reduce carcass
Sintering temperature；The effect of zinc powder is to form alloy with copper powder, glass putty, consolidates liquid phase, increases the fragility of alloy, improves carcass
Sharpness；The effect of signal bronze powder is to soften carcass, improves the sintering character of carcass, improves the consistency of carcass.Above mistake
Hardness HRB crossing the carcass after layer thermal sintering is 85～96.
The manufacture method of above-mentioned sandwich-type gang saw tool bit specifically includes following steps:
A: respectively by the bortz powder of working lining and transition zone and corresponding function metal powder mix homogeneously, forms raw material powder；
B: raw material powder is put into punching block of colding pressing, difference cold moudling working lining blank and transition zone blank on cold press；
C: each working lining blank and transition zone blank are overlayed in order in hot pressing die successively, according to the intensification pressurization set
Process curve, in high temperature environments working lining blank and transition zone blank are pressurizeed, make the working lining blank in mould and mistake
Cross the tyre body alloy density that layer blank hot pressing is the most predetermined, release and cooling the most again, obtain the cutting portion of cutter head；
D: be connected fixing to cutting portion and matrix, obtain cutter head.
By separately molded blank, then carry out hot-forming mode, can accurately control becoming of working lining and transition zone
Divide and shape, and then control cutter head structure change in use.
Further, in described step A, first bortz powder is mixed homogeneously in the case of being dried with function metal powder
Obtain siccative；Then take fraction siccative to mix homogeneously with liquid paraffin or triglyceride and obtain wet feed, then wet feed and residue
Siccative mix homogeneously；The mixed powder of described bortz powder and function metal powder and liquid paraffin or the part by weight of triglyceride
It is 1000:20～1000:80.Benefit with liquid paraffin or triglyceride moistening siccative is as follows: 1, avoid bortz powder, each
Plant metal powder causes mixing uneven because of the difference of proportion；2, the powder after moistening, aridity is moderate, beneficially cold-press moulding,
Forming workblank has enough intensity, within weight accuracy controls 1.5%；3, at follow-up blank, the dress blank of being cold-pressed into hot pressing die
During in, will not airborne dust, it is to avoid injury workman and pollute environment；4, liquid paraffin and the modest viscosity of triglyceride, and
And can scaling loss volatilize between 500～600 DEG C, tyre body alloy will not be polluted.It addition, in twice mixed process, siccative for the first time
Mixing, is owing to the proportion of various metal powders is different with particle diameter, is dry mixed and easily makes various powder mix homogeneously, wet mixing is the most inclined
Analysis, causes mixing uneven；Wet mixing for the second time, is to have obtained more uniform compound owing to first time is dry mixed, takes fraction and do
Material and liquid paraffin or triglyceride, stir by mixing, obtain wetter wet feed, by wetter wet feed with remaining
Siccative three-dimensional rolls mixing transmission wetting agent, obtains the compound that degree of wetting is consistent.
Further, in described working lining blank, the cross section that the working lining blank being positioned at outer layer is perpendicular to cutter head axial is equal
For rhombus, it is rectangle that the working lining blank of other position is perpendicular to the axial cross section of cutter head；Transition zone blank is perpendicular to cutter head
Axial cross section is wide at the top and narrow at the bottom trapezoidal.In working lining, hard alloy is the most, alloy powder poor fluidity, and tyre body hardness is high,
Sintering temperature is high, and resistance to pressure is good, is unlikely to deform；Hard alloy in transition zone is few mutually, alloy powder good fluidity, tyre body hardness
Low, sintering temperature is low, and pressurized is easily deformed；During high temperature sintering, because cutter head lower part size tapers into, transition zone pressurized is easy
Deformation, transition zone size tapers into the most from top to bottom, and volume diminishes, and under identical weight, density increases, the concentration of bortz powder
Increasing, the concentration defining the bortz powder in transition zone is gradually increased to fixing end face (matrix direction) by operative end surface；High
During temperature sintering, because the high-temperature pressure-proof of working lining is good, it is not easy to deformation, density keeps consistent, and the concentration of bortz powder is consistent；Logical
Cross aforesaid way to set the concentration of the bortz powder in working lining and transition zone, each layer can be controlled and synchronize abrasion, and then make
The degree of depth obtaining groove is maintained at certain limit.
Specifically, the process curve of the pressurization that heats up described in step C is as follows: initial pressure is 0.393MPa, at 5 points
Within clock, the temperature in mould is made to rise to 650 DEG C；Again pressure is increased to 0.686MPa, within 2 minutes, by mould
Temperature rise to 900 DEG C from 650 DEG C；Pressure is increased to 1.176MPa again, and keeps 4 minutes at a temperature of 900 DEG C, burn
Tie complete；Within the several seconds, shed pressure the most again and lower the temperature, being cooled to when 200 DEG C come out of the stove, then naturally cool to room temperature, taking out
The cutting portion of cutter head.Segmentation is pressurizeed and gradually heats up, and is mainly the sintering character according to metal powder, softening temperature, densification journey
Degree sets, and to guarantee that the alloying level obtained, density and intensity meet requirement, and diamond damages less.At this
In case, initial pressure is the least, but enough pressure again, make red copper electrode tight with hot pressing die (typically using graphite jig)
Contact energising, produces electric current, heating；Interstage pressure is moderate, between 650～900 DEG C, is the process of powder softening, pressure
Graphite jig is damaged in power too conference by pressure, and pressure is the least, and the consistency of cutter head cutting portion is inadequate, and space is too much；Final pressure to be tried one's best
Greatly, but will be in the pressure that graphite jig can bear.Above-mentioned release should complete in moment (in the several seconds), because cooling rate is very
Hurry up, uncontrollable, if temperature is the lowest, pressure is the biggest, can press quick-fried graphite jig.
The cutter head of the present invention is by arranging spaced working lining and transition zone at cutting portion so that the cutting portion of cutter head
After abrasion, the cross section of arc will not be become, but become the cross section of spacing convave trough, so can keep cutter head cutting portion
Sharpness, improve cutter head guidance quality, improve cut quality and extend cutter head service life；Cutter head in the present invention makes
Method technique is simple, it is convenient to realize, and can improve the quality of cutter head.
Accompanying drawing explanation
Fig. 1 is the top view of the sandwich-type gang saw tool bit of embodiment 1.
Fig. 2 is that (sight line is parallel to working lining and mistake for the front view of the sandwich-type gang saw tool bit state before use of embodiment 1
Cross a layer bearing of trend).
Fig. 3 is that (sight line is perpendicular to work for the side view of the sandwich-type gang saw tool bit state in use for some time of embodiment 1
Make layer and transition zone bearing of trend).
Fig. 4 is the B-B sectional view (state before using) in Fig. 1.
Fig. 5 is the B-B sectional view (using the state after a period of time) in Fig. 1.
Fig. 6 is the A-A sectional view (state before using) in Fig. 1.
Fig. 7 is the A-A sectional view (using the state after a period of time) in Fig. 1.
Fig. 8 is the process curve of the pressurization that heats up in embodiment 1.
Accompanying drawing indicates: 1, cutting portion；2, matrix；3, working lining；4, transition zone；5, groove.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, to the most involved each of the detailed description of the invention of the present invention
Mutual alignment and annexation, the effect of each several part and operation principle etc. between the shape of component, structure, each several part are made into one
The detailed description of step.
Embodiment 1:
Form as it can be seen, the sandwich-type gang saw tool bit of the present embodiment is provided with to be mixed by bortz powder and function metal powder and sintered
Cutting portion 1, it is critical only that described cutting portion 1 includes three layers of working lining 3 and both sides transition zone 4, between adjacent two working linings 3 be
Transition zone 4, and the both sides of this sandwich-type gang saw tool bit are respectively working lining 3；The hardness of working lining 3 is more than the hardness of transition zone 4；
The granularity of the bortz powder in working lining 3 is less than the granularity of the bortz powder in transition zone 4, the bortz powder in working lining 3
Concentration is more than the concentration of the bortz powder in transition zone 4.
As in figure 2 it is shown, the cross section being parallel to its working lining and transition zone bearing of trend of cutting portion 1 is trapezoidal, its major part
End, for being used for the one end connected with matrix 2 in cutting portion 1, so can suitably increase the contact area of cutter head and matrix 2, thus
Ensure the reliability that cutter head is connected with matrix 2.
As it is shown on figure 3, the cross section being perpendicular to its working lining and transition zone bearing of trend of cutting portion 1 is trapezoidal, its microcephaly
End is for being used for the one end connected with matrix 2 in cutting portion 1, so during cutting building stones, the matrix 2 of cutter head will not be by card
In building stones, it is to avoid the matrix 2 of cutter head is worn and torn by building stones.For realizing above-mentioned cross section, it is axial that 3 liang of outer layers of working lining are perpendicular to cutter head
Cross section be rhombus, it is rectangle that working lining 3 intermediate layer is perpendicular to the axial cross section of cutter head, transition zone 4 be perpendicular to cutter head
Axial cross section is trapezoidal, and the side of cutter head is consistent with the angle angle installed between end face of matrix 2.
In the course of the work, working lining 3 and transition zone 4 are worn and torn by building stones simultaneously, but due to the diamond of two-layer
The granularity of powder is different with concentration, and the hardness of metal matrix is different, causes the rub proofness of working lining 3 to be better than transition zone 4,
So after the abrasion of a period of time, the abrasion amplitude of transition zone 4 is greater than working lining 3 so that the end face of cutter head is in corresponding mistake
The position crossing layer 4 gradually forms groove 5.The formation of groove 5 improves the sharpness of working lining 3, and can be at cutting process
In play certain guide function, it is ensured that gang saw tool bit can straight line advance, cutting effect is more preferable.Transition zone in above-mentioned cutter head
4 still have certain cutting, grinding capacity, can't significantly affect the stock-removing efficiency of whole cutter head.
If working lining 3 is the most consistent with the concentration of the bortz powder in transition zone 4, then the time will be used along with cutter head
Increase, produced groove 5 degree of depth is also gradually increased, and the deepest groove 5 can cause working lining 3 frangibility exposed.For
Solving this problem, in the present embodiment, the concentration of the bortz powder in working lining 3 is consistent, and the bortz powder in transition zone 4
Concentration be gradually increased to fixing end face (matrix 2 direction) by operative end surface, set working lining 3 and transition by the way
The concentration of the bortz powder in layer 4, can control each layer and synchronize abrasion, and then make the degree of depth of groove 5 be maintained at certain limit.
The manufacture method of the cutting portion of above-mentioned sandwich-type gang saw tool bit is as follows:
A: respectively by the bortz powder of working lining 3 and transition zone 4 and corresponding function metal powder mix homogeneously, forms raw material powder；
Specific as follows: first bortz powder to be mixed homogeneously with function metal powder in the case of being dried and obtain siccative；Then little portion is taken
Divide siccative to mix homogeneously in pottery pot with liquid paraffin or triglyceride and obtain wet feed, then wet feed is mixed with remaining siccative
Uniformly；Described bortz powder and the mixed powder of function metal powder are 1000:60 with the part by weight of liquid paraffin or triglyceride；
B: raw material powder is put into punching block of colding pressing, is cold-pressed into rectangular working lining blank and transition zone hair on cold press respectively
Base；
C: successively each working lining blank and transition zone blank are overlayed hot pressing die 9(graphite jig in order) in, in mould
The releasing agent that surface and seaming chuck, push-down head are smeared is nanometer boron nitride micro powder or graphite microparticles or ceramic, described nitrogen
The particle size range changing boron nano powder or graphite microparticles or ceramic is 10～50 nanometers；Utilize automatic vacuum electrical resistance sintering
Stove, in vacuum atmosphere, carries out resistance-type heating and proportional valve hydraulic control system pressure sintering, adds according to the intensification set
The process curve of pressure, pressurizes to working lining blank and transition zone blank in high temperature environments, make the working lining blank in mould and
Transition zone blank hot pressing, to predetermined tyre body alloy density, release and cooling the most again, obtains the cutting portion 1 of cutter head；
After hot pressed sintering shapes, the cross section that the working lining being positioned at outer layer is perpendicular to cutter head axial is rhombus, other position
Working lining to be perpendicular to the axial cross section of cutter head be rectangle, it is ladder wide at the top and narrow at the bottom that transition zone is perpendicular to the axial cross section of cutter head
Shape.
D: after cutting portion 1 is made, is welded and fixed it with matrix 2, forms cutter head.
As shown in Figure 8, the process curve of the pressurization that heats up described in step C is as follows: initial pressure is 0.393MPa, 5
Within minute, the temperature in mould is made to rise to 650 DEG C；Again pressure is increased to 0.686MPa, within 2 minutes, by mould
Interior temperature rises to 900 DEG C from 650 DEG C；Pressure is increased to 1.176MPa again, and keeps 4 minutes at a temperature of 900 DEG C,
Sinter complete；Within the several seconds, shed pressure the most again and lower the temperature, being cooled to when 200 DEG C come out of the stove, then naturally cool to room temperature, take
Go out the cutting portion 1 of cutter head.
Wherein, the particle diameter of the bortz powder in working lining 3 is 325 microns, and concentration is 65%；Function in described working lining 3
Metal powder is mixed by cobalt powder, nikel powder, chromium powder, tungsten powder, tungsten carbide powder, iron-copper powder, and the particle diameter of cobalt powder and nikel powder is 7
Micron, the particle diameter of chromium powder is 40 microns, and tungsten powder, the particle diameter of tungsten carbide powder are 90 microns, and the particle diameter of iron-copper powder is 30 microns；
In function metal powder in described working lining 3, the part by weight of each composition is as follows: cobalt powder 60%, nikel powder 6%, chromium powder 1%, tungsten powder
5%, tungsten carbide powder 4%, iron-copper powder 24%；Hardness HRB of the carcass after above working lining 3 thermal sintering is 107.
The particle diameter of the bortz powder in described transition zone 4 is 550 microns, and concentration is 40%；Function in described transition zone 4
Metal powder is mixed by copper powder, glass putty, zinc powder, signal bronze powder, cobalt powder, nikel powder, chromium powder, tungsten powder, described signal bronze powder
The content of middle copper and tin is than for 85:15, and described copper powder, glass putty, zinc powder, chromium powder, the particle diameter of signal bronze powder are 40 microns, cobalt powder
Being 7 microns with the particle diameter of nikel powder, the particle diameter of tungsten powder is 90 microns；The weight of each composition in function metal powder in described transition zone 4
Amount ratio is as follows: copper powder 42%, glass putty 7%, zinc powder 3%, signal bronze powder 19%, cobalt powder 17%, nikel powder 5%, chromium powder 1%, tungsten powder 6%.
Hardness HRB of the carcass after above transition zone 4 thermal sintering is 89.
Claims (9)
1. a sandwich-type gang saw tool bit, this cutter head is provided with the cutting portion being made up of bortz powder and function metal powder, its feature
It is that described cutting portion includes at least two-layer working lining, is transition zone between adjacent two working linings, and this sandwich-type gang saw tool bit
Both sides be working lining；Wherein the granularity of the bortz powder in working lining is less than the granularity of the bortz powder in transition zone, and
The concentration of the bortz powder in working lining is more than the concentration of the bortz powder in transition zone；The hardness of the alloy carcass of working lining is big
Hardness in the alloy carcass of transition zone.
Sandwich-type gang saw tool bit the most according to claim 1, it is characterised in that the bortz powder in described working lining dense
Degree is consistent, and the concentration of the bortz powder in transition zone is gradually increased to fixing end face by operative end surface.
Sandwich-type gang saw tool bit the most according to claim 1 and 2, it is characterised in that described sandwich-type gang saw tool bit parallel
Trapezoidal in the cross section of its working lining and transition zone bearing of trend, its stub end be in sandwich-type gang saw tool bit for matrix phase
The one end connect；The cross section being perpendicular to its working lining and transition zone bearing of trend of described sandwich-type gang saw tool bit is trapezoidal, and it is little
Head end is for the one end connected with matrix in sandwich-type gang saw tool bit.
Sandwich-type gang saw tool bit the most according to claim 1 and 2, it is characterised in that the plated surface of described bortz powder is covered with
Nickel cobalt (alloy) powder coating, nikel powder, the weight ratio of cobalt powder in described nickel cobalt (alloy) powder coating be 90:10, nikel powder, cobalt powder
Particle diameter is 2.5～3 microns.
Sandwich-type gang saw tool bit the most according to claim 1 and 2, it is characterised in that the bortz powder in described working lining
Particle diameter is 300～425 microns, and concentration range is 35%～70%；Function metal powder in described working lining is by cobalt powder, nikel powder, chromium
Powder, tungsten powder, tungsten carbide powder, iron-copper powder mix, and the particle diameter of cobalt powder and nikel powder is less than 10 microns, and the particle diameter of chromium powder is 30
～50 microns, tungsten powder, the particle diameter of tungsten carbide powder are 80～100 microns, and the particle diameter of iron-copper powder is 20～40 microns；Described work
Make the part by weight of each composition in the function metal powder in layer as follows: cobalt powder 60～70%, nikel powder 2～8%, chromium powder 1～3%, tungsten
Powder 2～8%, tungsten carbide powder 2～6%, iron-copper powder 20～30%；The particle diameter of the bortz powder in described transition zone be 500～
600 microns, concentration range is 20%～50%；Function metal powder in described transition zone is by copper powder, glass putty, zinc powder, signal bronze
Powder, cobalt powder, nikel powder, chromium powder, tungsten powder mix, and in described signal bronze powder, the content of copper and tin is than for 85:15, described copper
Powder, glass putty, zinc powder, chromium powder, the particle diameter of signal bronze powder are 30～50 microns, and the particle diameter of cobalt powder and nikel powder is less than 10 microns, tungsten
The particle diameter of powder is 80～100 microns；In function metal powder in described transition zone, the part by weight of each composition is as follows: copper powder 40～
54%, glass putty 6～10%, zinc powder 2～10%, signal bronze powder 18～30%, cobalt powder 10～20%, nikel powder 3～6%, chromium powder 1～3%,
Tungsten powder 2～8%.
The manufacture method of sandwich-type gang saw tool bit the most according to claim 1, it is characterised in that specifically include following steps:
A: respectively by the bortz powder of working lining and transition zone and corresponding function metal powder mix homogeneously, forms raw material powder；
B: raw material powder is put into punching block of colding pressing, difference cold moudling working lining blank and transition zone blank on cold press；
C: each working lining blank and transition zone blank are overlayed in order in hot pressing die successively, according to the intensification pressurization set
Process curve, in high temperature environments working lining blank and transition zone blank are pressurizeed, make the working lining blank in mould and mistake
Cross the tyre body alloy density that layer blank hot pressing is the most predetermined, release and cooling the most again, obtain the cutting portion of cutter head；
D: be connected fixing to cutting portion and matrix, obtain cutter head.
The manufacture method of sandwich-type gang saw tool bit the most according to claim 7, it is characterised in that in described step A, first
Bortz powder is mixed homogeneously with function metal powder in the case of being dried and obtains siccative；Then fraction siccative and liquid stone are taken
Wax or triglyceride mix homogeneously obtain wet feed, then wet feed is mixed homogeneously with remaining siccative；Described bortz powder and function
The mixed powder of metal powder is 1000:20～1000:80 with the part by weight of liquid paraffin or triglyceride.
The manufacture method of sandwich-type gang saw tool bit the most according to claim 7, it is characterised in that in described working lining blank,
The cross section that the working lining blank being positioned at outer layer is perpendicular to cutter head axial is rhombus, and the working lining blank of other position is perpendicular to cutter
Axial cross section is rectangle；It is wide at the top and narrow at the bottom trapezoidal that transition zone blank is perpendicular to the axial cross section of cutter head.
The manufacture method of sandwich-type gang saw tool bit the most according to claim 7, it is characterised in that the intensification described in step C
The process curve of pressurization is as follows: initial pressure is 0.393MPa, within 5 minutes, makes the temperature in mould rise to 650 DEG C；
Again pressure is increased to 0.686MPa, within 2 minutes, the temperature in mould is risen to 900 DEG C from 650 DEG C；Again by pressure
Increase to 1.176MPa, and keep 4 minutes at a temperature of 900 DEG C, sinter complete；Within the several seconds, shed pressure the most again and drop
Temperature, is cooled to when 200 DEG C come out of the stove, and then naturally cools to room temperature, takes out the cutting portion of cutter head.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610689806.5A CN106182448B (en) | 2016-08-19 | 2016-08-19 | Sandwich-type gang saw tool bit and its manufacture method |
Applications Claiming Priority (1)
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| CN108453903A (en) * | 2018-02-06 | 2018-08-28 | 佛山市南珠锐普超硬材料制品有限公司 | A kind of Multilayer durable type diamond saw blade and its manufacturing method and application method |
| CN108582503A (en) * | 2018-05-07 | 2018-09-28 | 江苏锋泰工具有限公司 | Diamond Cutting cutter head and preparation method thereof |
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| CN106799488A (en) * | 2016-12-23 | 2017-06-06 | 南安市铭基金刚石工具有限公司 | Diamond saw blade and diamond saw blade and preparation method thereof |
| CN106799488B (en) * | 2016-12-23 | 2019-03-12 | 南安市铭基金刚石工具有限公司 | Diamond saw blade and diamond saw blade and preparation method thereof |
| CN108453903A (en) * | 2018-02-06 | 2018-08-28 | 佛山市南珠锐普超硬材料制品有限公司 | A kind of Multilayer durable type diamond saw blade and its manufacturing method and application method |
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| CN108582503A (en) * | 2018-05-07 | 2018-09-28 | 江苏锋泰工具有限公司 | Diamond Cutting cutter head and preparation method thereof |
| CN108582504A (en) * | 2018-05-07 | 2018-09-28 | 江苏锋泰工具有限公司 | Energy-efficient diamond saw blade and preparation method thereof |
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| CN108656363A (en) * | 2018-05-07 | 2018-10-16 | 江苏锋泰工具有限公司 | Composite multi-layer diamond segment and preparation method thereof |
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| CN109176903A (en) * | 2018-10-31 | 2019-01-11 | 泉州市华兴超硬工具有限公司 | One kind is dry to cut pottery diamond saw blade and preparation method thereof |
| CN109175379A (en) * | 2018-11-02 | 2019-01-11 | 石家庄海川工具有限公司 | A kind of diamond saw blade and preparation method thereof |
| CN109175379B (en) * | 2018-11-02 | 2020-10-27 | 石家庄海川工具有限公司 | Diamond saw blade tool bit and preparation method thereof |
| CN109590475B (en) * | 2019-01-09 | 2021-03-26 | 福建省泉州市华钻金刚石工具有限公司 | Large cutter head for cutting large high-hardness stone saw blade and preparation method of large cutter head |
| CN109590475A (en) * | 2019-01-09 | 2019-04-09 | 福建省泉州市华钻金刚石工具有限公司 | A kind of preparation method of big cutter head for cutting the big saw blade of high-hardness stone and the big cutter head |
| CN109571294A (en) * | 2019-01-25 | 2019-04-05 | 广州金谷钻石工具有限公司 | A kind of diamond cutter head containing pore forming particles |
| CN110091442A (en) * | 2019-05-15 | 2019-08-06 | 德淮半导体有限公司 | A kind of cutter and cutting method for cut crystal |
| CN110315642A (en) * | 2019-07-10 | 2019-10-11 | 广州普泰克金刚石工具有限公司 | The cutter head and its processing technology of a kind of saw blade cutting granite, quartz gang saw |
| CN110315642B (en) * | 2019-07-10 | 2022-01-04 | 广州普泰克金刚石工具有限公司 | Tool bit for gang saw by cutting granite and quartz stone with saw blade and machining process of tool bit |
| 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 |
| CN112091218A (en) * | 2019-10-22 | 2020-12-18 | 青岛新韩金刚石工业有限公司 | Low-price gang saw tool bit product and preparation method thereof |
| CN113184546A (en) * | 2021-03-25 | 2021-07-30 | 刘超 | Diamond tool production raw material wavy-pattern stacking system and stacking method thereof |
| CN117140745A (en) * | 2023-10-30 | 2023-12-01 | 泉州众志新材料科技有限公司 | Gang saw cutter head capable of reducing VOC concentration and preparation method thereof |
| CN117140745B (en) * | 2023-10-30 | 2023-12-29 | 泉州众志新材料科技有限公司 | Gang saw cutter head capable of reducing VOC concentration and preparation method thereof |
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