CN106761784A - A kind of polycrystalline diamond hobboing cutter cutter ring and its manufacture craft - Google Patents
A kind of polycrystalline diamond hobboing cutter cutter ring and its manufacture craft Download PDFInfo
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- CN106761784A CN106761784A CN201611082213.9A CN201611082213A CN106761784A CN 106761784 A CN106761784 A CN 106761784A CN 201611082213 A CN201611082213 A CN 201611082213A CN 106761784 A CN106761784 A CN 106761784A
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- cutter ring
- diamond
- cutter
- polycrystalline diamond
- hard alloy
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 76
- 239000010432 diamond Substances 0.000 title claims abstract description 76
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000011159 matrix material Substances 0.000 claims abstract description 49
- 239000000956 alloy Substances 0.000 claims abstract description 33
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 32
- 239000002131 composite material Substances 0.000 claims abstract description 30
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 239000011435 rock Substances 0.000 claims abstract description 7
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 4
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 238000001291 vacuum drying Methods 0.000 claims description 10
- 235000019580 granularity Nutrition 0.000 claims description 9
- 239000003595 mist Substances 0.000 claims description 9
- 238000003786 synthesis reaction Methods 0.000 claims description 9
- 238000010791 quenching Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005496 tempering Methods 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
- 238000000498 ball milling Methods 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005219 brazing Methods 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000012805 post-processing Methods 0.000 claims description 3
- 229910052903 pyrophyllite Inorganic materials 0.000 claims description 3
- 239000011863 silicon-based powder Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000010583 slow cooling Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
-
- 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
- B22F7/06—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 workpieces or articles from parts, e.g. to form tipped tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Earth Drilling (AREA)
Abstract
A kind of polycrystalline diamond hobboing cutter cutter ring, including cutter ring matrix and the crown for being uniformly arranged on cutter ring matrix external peripheral surface；Mass percent wherein shared by each raw material of cutter ring matrix is respectively：C is that 0.30~0.38%, Si is that 0.6~0.8%, Mn is that 0.20~0.65%, Cr is that 2.7~3.5%, Mo is that 2.6~3.4%, V is that 1.05~1.40%, Nb is 0.05~0.15%, impurity P≤0.02%, impurity S≤0.02%, Fe surpluses；Crown is made up of hard alloy substrate and polycrystalline diamond wearing layer.The invention also discloses a kind of bearing technique of polycrystalline diamond hobboing cutter cutter ring.Using split be fabricated by for cutter ring matrix and crown by the present invention, and the processing technology of uniqueness is respectively adopted, combine the high impact toughness and composite polycrystal-diamond of cutter ring matrix compression strength high, hardness and wearability, therefore can easily fractured rock while there is the high life-span, also substantially increase construction drivage efficiency.
Description
Technical field
The invention belongs to tunnel, subway work technical field, more particularly to a kind of polycrystalline diamond hobboing cutter cutter ring and its system
Make technique.
Background technology
At present, China enters flourish period, shield, TBM using shield, TBM methods construction mountain tunnel, city underground
Method is with its geological conditions strong adaptability, speed of application is fast, disturb surrounding enviroment be increasingly becoming constructing tunnel engineering method the advantages of lacking
First-selection, and it is domestic some frequently encounter the ground consisting of hard rock that compressive strength of rock meets or exceeds 100MPa in the city for building subway
Or the extremely strong sandstone formation of abrasiveness, shield machine tunnels in this stratum, and traditional steel hobboing cutter cutter ring serious wear causes to change
Knife frequently, increases construction risk and engineering cost.At present, hobboing cutter cutter ring frequently with material for 4Cr5MoSiV1,
40CrNiMo, H13 etc., but these Disc Cutter Ring Materials are single steel alloy material, in hard rock and sandstone rock stratum driving, exist
The problem for wearing no resistance or being easily broken off.For the metal material prepared under general condition, hardness and toughness are a pair
Contradiction, hardness improves the toughness that certainly will reduce material.
The content of the invention
The present invention is in order to solve weak point of the prior art, there is provided a kind of toughness is strong, hardness is high, wearability is high, anti-
The good polycrystalline diamond hobboing cutter cutter ring of pressure performance and its manufacture craft.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：A kind of polycrystalline diamond hobboing cutter cutter ring, including
Cutter ring matrix and the crown for being uniformly arranged on cutter ring matrix external peripheral surface；Quality hundred wherein shared by each raw material of cutter ring matrix
Ratio is divided to be respectively：C is that 0.30~0.38%, Si is that 0.6~0.8%, Mn is that 0.20~0.65%, Cr is that 2.7~3.5%, Mo is
2.6~3.4%, V is that 1.05~1.40%, Nb is 0.05~0.15%, impurity P≤0.02%, impurity S≤0.02%, Fe surpluses；
Crown is made up of hard alloy substrate and polycrystalline diamond wearing layer, the matter shared by each raw material of polycrystalline diamond wearing layer
Amount percentage is respectively：Diamond is 80%-82%, and Si is 6%-7%, and Co is 12%-13%.
The integral hardness of cutter ring matrix is HRC48~53, and impact flexibility is 27~37J/cm2.
A kind of manufacture craft of polycrystalline diamond hobboing cutter cutter ring, comprises the following steps：（1）Cutter ring matrix is made,
Mounting groove is uniformly arranged in cutter ring base circumferential surface；
（2）Crown is made；
（3）The hard alloy substrate of crown is uniformly fixed in the mounting groove of cutter ring matrix by way of being welded after inlaying.
Step（1）Specific make step is：
A, each raw material of described cutter ring matrix sequentially pass through electric furnace smelting, electroslag remelting, blocking, die forging, slow cooling, annealing, thick
The cutter ring matrix crude green body of disk-shaped structure is obtained after manufacturing procedure；
B, cutter ring matrix crude green body are obtained after high-temperature vacuum quenching plus secondary high-temperature tempering, low temperature destressing treatment, finishing again
Integral hardness HRC48~53, the cutter ring matrix of 27~37J/cm2 of impact flexibility.
Cutter ring matrix crude green body is through the specification that high-temperature vacuum quenching plus secondary high-temperature are tempered in step b：Hardening heat 1050
DEG C -1070 DEG C, quench 30 DEG C -50 DEG C of oil temperature, 600 DEG C -620 DEG C of temperature, 560 DEG C -570 DEG C it is each once.
The temperature of low temperature destressing treatment is carried out in step b for 250-370 DEG C, soaking time 1.5-2 hours, using vacuum
Stove or atmosphere protection stove.
Hobboing cutter cutter ring is heated to 150-190 DEG C in vacuum drying oven or atmosphere protection stove, 35-50 minutes is incubated, with furnace temperature nature
Cooling.
Step（2）Specific make step is：
A, the dispensing of diadust, mixing：Choose normal diamond micro mist, the 30%- of the 50-60um granularities of 30%-35% weight
The normal diamond micro mist of the normal diamond micro mist of the 30-40um granularities of 35% weight, the 10-20um granularities of 5%-20% weight
And the 5-20.0umCo powder of 12%-13% weight, remaining as Si powder, using ball mill by above powder ball milling 10 hours, mixing
It is placed on after uniform under 120 DEG C of vacuum drying chamber and is saved backup；
B, hard alloy substrate：Hard alloy substrate is processed by drawing, and the wherein weight content of WC is 85%-94%, Co's
Weight content is 6%-15%；
C, in pyrophyllite block diadust and hard alloy are assembled：Take diadust that 1.0g-2.0g mixes with
Hard alloy substrate is compacted assembling with 5 tons of forcing press；The matrix assembled after compacting is placed in pyrophillite Synthetic block, is put into and is led
In the synthesis mould of electric steel ring composition, wherein the thickness of polycrystalline diamond wearing layer is 1.0--2.0mm；
Synthesize under D, HTHP：The synthesis mould of composition is put into hexahedron synthetic diamond press, in pressure 5.5-6.1 GPa,
1300 DEG C -1500 DEG C of temperature, sintering synthesis 5 minutes, is made composite polycrystal-diamond；
E, blasting treatment：The sinter on removal composite polycrystal-diamond surface；
F, composite polycrystal-diamond destressing：Composite polycrystal-diamond is heated to 200- in vacuum drying oven or atmosphere protection stove
250 DEG C, after being incubated 5-10 minutes, with furnace temperature natural cooling；
The post-processing of G, composite polycrystal-diamond：Composite polycrystal-diamond is obtained after being machined using grinding machine, is made
The diameter of the hard alloy substrate of composite polycrystal-diamond is slightly larger than the internal diameter of mounting groove, and hard alloy substrate diameter tolerance is
± 0.01mm, height tolerance is ± 0.05mm.
Step（3）Specific make step is：The hard alloy substrate of composite polycrystal-diamond is mounted in mounting groove, so
Hard alloy substrate is welded as a whole with cutter ring matrix by soldering afterwards, welding temperature is 620 DEG C -680 DEG C, using high intensity
Silver solder and powdery silver brazing agent.
Composite polycrystal-diamond is mounted in mounting groove using the mosaic mode of interference fit, magnitude of interference control exists
0.05mm。
Using above-mentioned technical proposal, lowered compared with traditional shield Disc Cutter Ring Material, in the present invention phosphorus content to 0.30~
0.38%, increase the content of Mo, although the integral hardness of cutter ring matrix drops to HRC48~53, the impact flexibility of palette knife cycle basis body
Have and largely rise to 27~37J/cm2, it is ensured that cutter ring matrix has high toughness, it is to avoid cutter ring phenomenon of rupture goes out
It is existing.Due to the prefabricated mounting groove on the outer circumference surface of cutter ring matrix, inlayed or soldering composite polycrystal-diamond in installing, gathered
Diamond composite sheet is made by hard alloy substrate and polycrystalline diamond wearing layer by a series of processing technologys.Although
The integral hardness of cutter ring matrix drops to HRC48~53, wearability reduction, but be greatly strengthen using polycrystalline diamond wearing layer
The wearability of hobboing cutter cutter ring.Using split be fabricated by for cutter ring matrix and crown by the present invention, and the processing of uniqueness is respectively adopted
Technique, combines the high impact toughness and composite polycrystal-diamond of cutter ring matrix compression strength high, hardness and wearability
Come, thus can easily fractured rock while there is the high life-span, also substantially increase construction drivage efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment
As shown in figure 1, a kind of polycrystalline diamond hobboing cutter cutter ring of the invention, including cutter ring matrix 1 and it is uniformly arranged on knife
The crown of the external peripheral surface of cycle basis body 1；Mass percent wherein shared by each raw material of cutter ring matrix 1 is respectively：C be 0.30~
0.38%th, Si be 0.6~0.8%, Mn be 0.20~0.65%, Cr be 2.7~3.5%, Mo be 2.6~3.4%, V be 1.05~
1.40%th, Nb is 0.05~0.15%, impurity P≤0.02%, impurity S≤0.02%, Fe surpluses；
Crown is made up of hard alloy substrate 2 and polycrystalline diamond wearing layer 3, shared by each raw material of polycrystalline diamond wearing layer 3
Mass percent be respectively：Diamond is 80%-82%, and Si is 6%-7%, and Co is 12%-13%.
The integral hardness of cutter ring matrix 1 is HRC48~53, and impact flexibility is 27~37J/cm2.
A kind of manufacture craft of polycrystalline diamond hobboing cutter cutter ring, comprises the following steps：（1）Cutter ring matrix 1 is made,
Mounting groove is uniformly arranged in the circumferential surface of cutter ring matrix 1；
（2）Crown is made；
（3）The hard alloy substrate 2 of crown is uniformly fixed to the mounting groove of cutter ring matrix 1 by way of being welded after inlaying
It is interior.
Step（1）Specific make step is：
A, each raw material of described cutter ring matrix 1 sequentially pass through electric furnace smelting, electroslag remelting, blocking, die forging, slow cooling, annealing, thick
The crude green body of cutter ring matrix 1 of disk-shaped structure is obtained after manufacturing procedure；
B, the crude green body of cutter ring matrix 1 are obtained after high-temperature vacuum quenching plus secondary high-temperature tempering, low temperature destressing treatment, finishing again
Integral hardness HRC48~53, the cutter ring matrix 1 of 27~37J/cm2 of impact flexibility.
The crude green body of cutter ring matrix 1 is through the specification that high-temperature vacuum quenching plus secondary high-temperature are tempered in step b：Hardening heat 1050
DEG C -1070 DEG C, quench 30 DEG C -50 DEG C of oil temperature, 600 DEG C -620 DEG C of temperature, 560 DEG C -570 DEG C it is each once.
The temperature of low temperature destressing treatment is carried out in step b for 250-370 DEG C, soaking time 1.5-2 hours, using vacuum
Stove or atmosphere protection stove.Hobboing cutter cutter ring is heated to 150-190 DEG C in vacuum drying oven or atmosphere protection stove, 35-50 minutes is incubated, with stove
Warm natural cooling.
Step（2）Specific make step is：
A, the dispensing of diadust, mixing：Choose normal diamond micro mist, the 30%- of the 50-60um granularities of 30%-35% weight
The normal diamond micro mist of the normal diamond micro mist of the 30-40um granularities of 35% weight, the 10-20um granularities of 5%-20% weight
And the 5-20.0umCo powder of 12%-13% weight, remaining as Si powder, using ball mill by above powder ball milling 10 hours, mixing
It is placed on after uniform under 120 DEG C of vacuum drying chamber and is saved backup；
B, hard alloy substrate 2：Hard alloy substrate 2 is processed by drawing, and the wherein weight content of WC is 85%-94%, Co
Weight content be 6%-15%；
C, in pyrophyllite block diadust and hard alloy are assembled：Take diadust that 1.0g-2.0g mixes with
Hard alloy substrate 2 is compacted assembling with 5 tons of forcing press；The matrix assembled after compacting is placed in pyrophillite Synthetic block, is put into
In the synthesis mould of conducting steel ring composition, wherein the thickness of polycrystalline diamond wearing layer 3 is 1.0--2.0mm；
Synthesize under D, HTHP：The synthesis mould of composition is put into hexahedron synthetic diamond press, in pressure 5.5-6.1 GPa,
1300 DEG C -1500 DEG C of temperature, sintering synthesis 5 minutes, is made composite polycrystal-diamond；
E, blasting treatment：The sinter on removal composite polycrystal-diamond surface；
F, composite polycrystal-diamond destressing：Composite polycrystal-diamond is heated to 200- in vacuum drying oven or atmosphere protection stove
250 DEG C, after being incubated 5-10 minutes, with furnace temperature natural cooling；
The post-processing of G, composite polycrystal-diamond：Composite polycrystal-diamond is obtained after being machined using grinding machine, is made
The diameter of the hard alloy substrate 2 of composite polycrystal-diamond is slightly larger than the internal diameter of mounting groove, the diameter tolerance of hard alloy substrate 2
It is ± 0.01mm, height tolerance is ± 0.05mm.
Step（3）Specific make step is：The hard alloy substrate 2 of composite polycrystal-diamond is mounted in mounting groove,
Using the mosaic mode of interference fit, the magnitude of interference is controlled in 0.05mm；Then soldering is passed through by hard alloy substrate 2 and cutter ring base
Body 1 is welded as a whole, and welding temperature is 620 DEG C -680 DEG C, using the silver brazing agent of the silver solder and powdery of high intensity.
Above example is only used to illustrative and not limiting technical scheme, although with reference to above-described embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that：Still the present invention can be modified or be waited
With replacement, any modification or partial replacement without departing from the spirit and scope of the present invention, it all should cover in power of the invention
In the middle of sharp claimed range.
Claims (10)
1. a kind of polycrystalline diamond hobboing cutter cutter ring, it is characterised in that：Including cutter ring matrix and to be uniformly arranged on cutter ring matrix cylindrical
The crown of perimeter surface；Mass percent wherein shared by each raw material of cutter ring matrix is respectively：C is that 0.30~0.38%, Si is
0.6~0.8%, Mn is that 0.20~0.65%, Cr is that 2.7~3.5%, Mo is that 2.6~3.4%, V is that 1.05~1.40%, Nb is
0.05~0.15%, impurity P≤0.02%, impurity S≤0.02%, Fe surpluses；
Crown is made up of hard alloy substrate and polycrystalline diamond wearing layer, the matter shared by each raw material of polycrystalline diamond wearing layer
Amount percentage is respectively：Diamond is 80%-82%, and Si is 6%-7%, and Co is 12%-13%.
2. a kind of polycrystalline diamond hobboing cutter cutter ring according to claim 1, it is characterised in that：The integral hardness of cutter ring matrix
It is HRC48~53, impact flexibility is 27~37J/cm2.
3. the manufacture craft of a kind of polycrystalline diamond hobboing cutter cutter ring according to claim 2, it is characterised in that：Including following
Step：（1）Cutter ring matrix is made, mounting groove is uniformly arranged in cutter ring base circumferential surface；
（2）Crown is made；
（3）The hard alloy substrate of crown is uniformly fixed in the mounting groove of cutter ring matrix by way of being welded after inlaying.
4. the manufacture craft of a kind of polycrystalline diamond hobboing cutter cutter ring according to claim 3, it is characterised in that：Step（1）
Specific make step is：
A, each raw material of described cutter ring matrix sequentially pass through electric furnace smelting, electroslag remelting, blocking, die forging, slow cooling, annealing, thick
The cutter ring matrix crude green body of disk-shaped structure is obtained after manufacturing procedure；
B, cutter ring matrix crude green body are obtained after high-temperature vacuum quenching plus secondary high-temperature tempering, low temperature destressing treatment, finishing again
Integral hardness HRC48~53, the cutter ring matrix of 27~37J/cm2 of impact flexibility.
5. the manufacture craft of a kind of polycrystalline diamond hobboing cutter cutter ring according to claim 4, it is characterised in that：In step b
Cutter ring matrix crude green body quenches through high-temperature vacuum plus the specification of secondary high-temperature tempering is：1050 DEG C -1070 DEG C of hardening heat, quenching oil
30 DEG C -50 DEG C of temperature, 600 DEG C -620 DEG C of temperature, 560 DEG C -570 DEG C it is each once.
6. the manufacture craft of a kind of polycrystalline diamond hobboing cutter cutter ring according to claim 4, it is characterised in that：In step b
The temperature of low temperature destressing treatment is carried out for 250-370 DEG C, soaking time 1.5-2 hours, using vacuum drying oven or atmosphere protection stove.
7. the manufacture craft of a kind of polycrystalline diamond hobboing cutter cutter ring according to claim 6, it is characterised in that：Hobboing cutter cutter ring
150-190 DEG C is heated in vacuum drying oven or atmosphere protection stove, 35-50 minutes is incubated, with furnace temperature natural cooling.
8. the manufacture craft of a kind of polycrystalline diamond hobboing cutter cutter ring according to right wants 3, it is characterised in that：Step（2）Tool
Body making step is：
A, the dispensing of diadust, mixing：Choose normal diamond micro mist, the 30%- of the 50-60um granularities of 30%-35% weight
The normal diamond micro mist of the normal diamond micro mist of the 30-40um granularities of 35% weight, the 10-20um granularities of 5%-20% weight
And the 5-20.0umCo powder of 12%-13% weight, remaining as Si powder, using ball mill by above powder ball milling 10 hours, mixing
It is placed on after uniform under 120 DEG C of vacuum drying chamber and is saved backup；
B, hard alloy substrate：Hard alloy substrate is processed by drawing, and the wherein weight content of WC is 85%-94%, Co's
Weight content is 6%-15%；
C, in pyrophyllite block diadust and hard alloy are assembled：Take diadust that 1.0g-2.0g mixes with
Hard alloy substrate is compacted assembling with 5 tons of forcing press；The matrix assembled after compacting is placed in pyrophillite Synthetic block, is put into and is led
In the synthesis mould of electric steel ring composition, wherein the thickness of polycrystalline diamond wearing layer is 1.0--2.0mm；
Synthesize under D, HTHP：The synthesis mould of composition is put into hexahedron synthetic diamond press, in pressure 5.5-6.1 GPa,
1300 DEG C -1500 DEG C of temperature, sintering synthesis 5 minutes, is made composite polycrystal-diamond；
E, blasting treatment：The sinter on removal composite polycrystal-diamond surface；
F, composite polycrystal-diamond destressing：Composite polycrystal-diamond is heated to 200- in vacuum drying oven or atmosphere protection stove
250 DEG C, after being incubated 5-10 minutes, with furnace temperature natural cooling；
The post-processing of G, composite polycrystal-diamond：Composite polycrystal-diamond is obtained after being machined using grinding machine, is made
The diameter of the hard alloy substrate of composite polycrystal-diamond is slightly larger than the internal diameter of mounting groove, and hard alloy substrate diameter tolerance is
± 0.01mm, height tolerance is ± 0.05mm.
9. the manufacture craft of a kind of polycrystalline diamond hobboing cutter cutter ring according to right wants 8, it is characterised in that：Step（3）Tool
Body making step is：The hard alloy substrate of composite polycrystal-diamond is mounted in mounting groove, then by soldering by hard
Alloy substrate is welded as a whole with cutter ring matrix, and welding temperature is 620 DEG C -680 DEG C, using the silver solder and powdery of high intensity
Silver brazing agent.
10. the manufacture craft of a kind of polycrystalline diamond hobboing cutter cutter ring according to right wants 9, it is characterised in that：By glomerocryst gold
Hard rock composite sheet is mounted to the mosaic mode using interference fit in mounting groove, and the magnitude of interference is controlled in 0.05mm.
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| CN201611082213.9A CN106761784B (en) | 2016-11-30 | 2016-11-30 | A kind of polycrystalline diamond hobboing cutter cutter ring and its manufacture craft |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107842369A (en) * | 2017-12-11 | 2018-03-27 | 安徽天重工股份有限公司 | A kind of Hob cutter ring of shield machine and its manufacture method with built-up welding cobalt-base alloys |
| CN107838494A (en) * | 2017-11-17 | 2018-03-27 | 中山市中建电气有限公司 | A kind of hard alloy saw blade and its welding method |
| CN109339807A (en) * | 2018-11-18 | 2019-02-15 | 中国电建集团铁路建设有限公司 | A kind of shield multi-knife-head hobboing cutter cutter ring |
| CN109530680A (en) * | 2018-12-29 | 2019-03-29 | 中石化江钻石油机械有限公司 | The composite polycrystal-diamond and preparation method thereof of thermostable type high abrasion |
| CN109623287A (en) * | 2019-01-15 | 2019-04-16 | 常德市中天精密工具有限公司 | A kind of hot melt processing method of break bar cutter ring |
| CN109759784A (en) * | 2018-12-28 | 2019-05-17 | 洛阳金鹭硬质合金工具有限公司 | A method of wear-resisting inserted cutter ring is made using soldering |
| CN112458376A (en) * | 2020-12-01 | 2021-03-09 | 中铁工程装备集团有限公司 | Hob cutter ring and preparation method thereof |
| CN112605609A (en) * | 2020-12-01 | 2021-04-06 | 中铁工程装备集团有限公司 | Tower type hobbing cutter ring and preparation method thereof |
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| CN101550805A (en) * | 2009-05-15 | 2009-10-07 | 中南大学 | Abrasion resistant drilling tool plated with diamond layer and manufacturing technology thereof |
| CN201460743U (en) * | 2009-07-27 | 2010-05-12 | 广州市盾建地下工程有限公司 | Hobbing cutter with hard alloy gear provided with alien gear head |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107838494A (en) * | 2017-11-17 | 2018-03-27 | 中山市中建电气有限公司 | A kind of hard alloy saw blade and its welding method |
| CN107842369A (en) * | 2017-12-11 | 2018-03-27 | 安徽天重工股份有限公司 | A kind of Hob cutter ring of shield machine and its manufacture method with built-up welding cobalt-base alloys |
| CN109339807A (en) * | 2018-11-18 | 2019-02-15 | 中国电建集团铁路建设有限公司 | A kind of shield multi-knife-head hobboing cutter cutter ring |
| CN109759784A (en) * | 2018-12-28 | 2019-05-17 | 洛阳金鹭硬质合金工具有限公司 | A method of wear-resisting inserted cutter ring is made using soldering |
| CN109530680A (en) * | 2018-12-29 | 2019-03-29 | 中石化江钻石油机械有限公司 | The composite polycrystal-diamond and preparation method thereof of thermostable type high abrasion |
| CN109623287A (en) * | 2019-01-15 | 2019-04-16 | 常德市中天精密工具有限公司 | A kind of hot melt processing method of break bar cutter ring |
| CN112458376A (en) * | 2020-12-01 | 2021-03-09 | 中铁工程装备集团有限公司 | Hob cutter ring and preparation method thereof |
| CN112605609A (en) * | 2020-12-01 | 2021-04-06 | 中铁工程装备集团有限公司 | Tower type hobbing cutter ring and preparation method thereof |
| CN112605609B (en) * | 2020-12-01 | 2022-03-04 | 中铁工程装备集团有限公司 | Tower type hobbing cutter ring and preparation method thereof |
| CN112458376B (en) * | 2020-12-01 | 2022-04-22 | 中铁工程装备集团有限公司 | Hob cutter ring and preparation method thereof |
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| CN106761784B (en) | 2018-12-11 |
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