CN107282996A - A kind of hard alloy saw blade - Google Patents
A kind of hard alloy saw blade Download PDFInfo
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- CN107282996A CN107282996A CN201710361442.2A CN201710361442A CN107282996A CN 107282996 A CN107282996 A CN 107282996A CN 201710361442 A CN201710361442 A CN 201710361442A CN 107282996 A CN107282996 A CN 107282996A
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- saw blade
- hard alloy
- sawtooth
- saw
- bit matrix
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- 239000000956 alloy Substances 0.000 title claims abstract description 105
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 104
- 239000000463 material Substances 0.000 claims abstract description 48
- 238000000576 coating method Methods 0.000 claims abstract description 47
- 238000005245 sintering Methods 0.000 claims abstract description 46
- 239000011248 coating agent Substances 0.000 claims abstract description 37
- 239000000203 mixture Substances 0.000 claims abstract description 29
- 239000011230 binding agent Substances 0.000 claims abstract description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 229910002637 Pr6O11 Inorganic materials 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims description 77
- 239000000047 product Substances 0.000 claims description 32
- 238000010791 quenching Methods 0.000 claims description 32
- 230000000171 quenching effect Effects 0.000 claims description 32
- 238000000227 grinding Methods 0.000 claims description 24
- 239000011268 mixed slurry Substances 0.000 claims description 24
- 239000003966 growth inhibitor Substances 0.000 claims description 22
- 238000002360 preparation method Methods 0.000 claims description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 229910003460 diamond Inorganic materials 0.000 claims description 14
- 239000010432 diamond Substances 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 claims description 14
- 239000011265 semifinished product Substances 0.000 claims description 14
- 238000003466 welding Methods 0.000 claims description 14
- 238000001238 wet grinding Methods 0.000 claims description 14
- 229910000679 solder Inorganic materials 0.000 claims description 13
- 238000005496 tempering Methods 0.000 claims description 13
- 229910017770 Cu—Ag Inorganic materials 0.000 claims description 12
- 239000010941 cobalt Substances 0.000 claims description 10
- 229910017052 cobalt Inorganic materials 0.000 claims description 10
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 8
- 239000003112 inhibitor Substances 0.000 claims description 7
- 239000006004 Quartz sand Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 229910052702 rhenium Inorganic materials 0.000 claims description 3
- 230000008021 deposition Effects 0.000 abstract description 14
- 238000007493 shaping process Methods 0.000 abstract description 2
- 241000763859 Dyckia brevifolia Species 0.000 description 140
- 238000005520 cutting process Methods 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 13
- 238000000151 deposition Methods 0.000 description 13
- 239000002904 solvent Substances 0.000 description 13
- 229910052799 carbon Inorganic materials 0.000 description 11
- 229910052804 chromium Inorganic materials 0.000 description 11
- 238000001914 filtration Methods 0.000 description 11
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000001035 drying Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 239000006104 solid solution Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000003026 anti-oxygenic effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
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- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- -1 furniture Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
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- 239000011343 solid material Substances 0.000 description 1
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- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/04—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Powder Metallurgy (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
The present invention relates to a kind of saw blade, and in particular to a kind of hard alloy saw blade, belongs to Hardmetal materials field.The hard alloy saw blade is made up of Hardmetal materials, and Hardmetal materials include hard alloy substrate and are coated in the coating of cemented carbide substrate surfaces, and the hard alloy substrate includes the composition of following parts by weight：80 85 parts of tungsten-carbide powder, 5 10 parts of co binder, Pr6O11：0.5 1.0 parts, 0.2 0.3 parts of nitrogen, hardening agent：0.5 0.8 parts.The present invention uses the rational hard alloy of compatibility, and Pr is also added in Hardmetal materials6O11, nitrogen, hardening agent, also define its content in component, each element can be made to pass through synergy, and pass through mixing, repressed shaping, sintering, coating again, simultaneously using high temperature insostatic pressing (HIP), physical vaporous deposition etc., thus obtained hard alloy saw blade has the advantages that high rigidity, high intensity and high rigidity.
Description
Technical field
The present invention relates to a kind of saw blade, and in particular to a kind of hard alloy saw blade, belongs to Hardmetal materials field.
Technical background
Saw blade is the general designation for cutting the thin slice circular knives of solid material.Saw blade can be divided into：Cut for stone material
Diamond saw blade；The HSS sawblade cut for metal material；For solid wood, furniture, wood-based plate, aluminium alloy, aluminium section bar, dissipate
The hard alloy saw blade of the cuttings such as hot device, plastics, plastic-steel.
Hard alloy saw blade aims at cut-out as hard alloy cutter class product and slotted metal material is made, and is wood
Product processes the most frequently used cutlery, and the quality of hard alloy saw blade and the quality of converted products have substantial connection.Hard alloy is sawed
The multiple parameters such as species, the material of matrix, diameter, the number of teeth, thickness, tooth form, angle, aperture of the piece comprising alloy cutter head, these
Parameter decides the working ability and cutting ability of saw blade.Sintered carbide circular saw is in cutting material, and cut quality is removed with setting
Have outside the Pass, the characteristic of itself is also extremely important.Hypertonia, can cause situations such as saw blade is tilted, and can cause sawing material
Cut on depth direction crooked.Tension force is not enough, can cause situations such as saw blade beat, shake, then occur on saw blade moving direction
Cutting is crooked.Therefore will be according to the species of sawing material, thickness, the speed of sawing, the direction of sawing, feeding speed during selection saw blade
Degree, saw kerf width correctly select saw blade.Correctly reasonably selection hard alloy saw blade adds for improving product quality, shortening
Work cycle, reduction processing cost have great importance.
In actual application, because the use characteristic of saw blade in itself is, it is necessary to often be polished to improve its rigidity
So as to improve its cut quality.But reconditioning easily causes the change and destruction dynamic balancing of former angle, influences the use longevity of saw blade
Life and cutting effect.
The content of the invention
The purpose of the present invention is to be directed to the above-mentioned problems in the prior art, it is proposed that a kind of hard alloy saw blade.
The above-mentioned purpose of the present invention is realized by following technical solution：A kind of hard alloy saw blade, including saw bit matrix
1st, hard alloy sawtooth 2, hard alloy sawtooth is welded on saw bit matrix, is evenly distributed in saw bit matrix circumference, and hard is closed
Golden saw blade center is provided with the centre bore 3 for being used for fixing saw blade, and sawtooth bottom is provided with space chip pocket, is easy to exclude cutting waste material,
The tension ring 5 that chip pocket bottom has been uniformly distributed in the middle part of four thermal expansion grooves 4, saw blade is constituted；Hard alloy saw blade is closed by hard
Golden material is made, and Hardmetal materials include hard alloy substrate and are coated in the coating of cemented carbide substrate surfaces, described hard
Matter alloy substrate includes the composition of following parts by weight：80-85 parts of tungsten-carbide powder, 5-10 parts of co binder, Pr6O11：0.5-1.0
Part, 0.2-0.3 parts of nitrogen, hardening agent：0.5-0.8 parts.
The present invention is made of Hardmetal materials, and hard alloy has high, wear-resisting hardness, intensity and toughness preferable, resistance to
A series of premium properties such as hot, corrosion-resistant, ensure that the saw blade has good cutting performance, while cutting intensity is high, tough
Property is good, and service life is long.Wherein, in Hardmetal materials of the present invention, matrix surface applying coating has Hardmetal materials
There is high wearability and hardness, the saw blade being prepared from can be allowed to use higher cutting speed, so as to improve processing effect
Rate.
In the present invention, carbide matrix material includes tungsten-carbide powder, co binder, Pr6O11, nitrogen, hardening agent, can lead to
Cross synergy, so as to get hard alloy substrate there is good hardness and intensity, kept during the use of saw blade compared with
Good matrix stable performance.
In the Hardmetal materials of hard alloy saw blade of the present invention, also contain Pr6O11.Pr is rare earth element, itself and oxygen
Reaction generation rare earth oxide.This kind of rare earth oxide is added in Hardmetal materials, tungsten carbide phase can be strengthened and cobalt is viscous
Interface, the macroscopical compression of increase alloy surface of phase are tied, so as to improve the hardness of Hardmetal materials.
In addition, the present invention also added micro nitrogen, nitrogen can enter in the gap of metal lattice, form gap
Solid solution.The interstitial solid solution is not easily decomposed at high temperature, and oxidation resistance is strong, and heat endurance is good, while hard conjunction can be improved
The hardness of gold.
In a kind of above-mentioned Hardmetal materials of hard alloy saw blade, the thickness of the coating is 5-20 μm.In the thickness
In the range of degree, the cutting ability of hard alloy is significantly improved, and reduces the surface roughness of hard alloy, it is possible to reduce knife
The friction of tool, reduces cutting temperature, increases the service life.
In a kind of above-mentioned Hardmetal materials of hard alloy saw blade, the coating is diamond CVD coating.This kind is applied
Layer can increase the intensity, hardness and reduction surface roughness of hard alloy.The diamond CVD coating is ultra-fine crystallization, average
Granularity is 0.5-0.7 μm, more smooth on the particle size range undercoating surface.
In a kind of above-mentioned Hardmetal materials of hard alloy saw blade, the crystalline substance of the tungsten-carbide powder of the metal hard phase
Grain size is 0.3-0.5 μm.Crystal grain is smaller, and defect is fewer, and obtained Hardmetal materials intensity and rigidity are higher；But crystal grain mistake
Small, complex manufacturing technology easily causes the rising of the cost of Hardmetal materials.
In a kind of Hardmetal materials of above-mentioned hard alloy saw blade, the hardening agent is in graphene, quartz sand
One or two.Graphene is that current nature is most thin, intensity highest material, and quartz sand is a kind of hard, wear-resisting, chemistry
The stable silicate mineral of performance.The addition energy enhanced article rigidity and hardness of hardening agent, reduction product are shrinkage and because receiving
Deformed caused by contracting.Hardening agent has a good dispersed and preferable surface gloss in itself, and with anti-oxidant and
Anti-aging effect, can extend product service life.
In the Hardmetal materials of hard alloy saw blade of the present invention, in the co binder Cr containing 2-3% and
0.2-0.5% Re, remaining is cobalt.Cobalt plays skeleton function as metal and the bonding agent of carbon.The toughness of hard alloy is by bonding
Metal determines that binding metal content is higher, and bending strength and rigidity are bigger.Cobalt is added in Hardmetal materials, be can guarantee that hard
Matter alloy has certain toughness, moreover it is possible to improve the intensity of hard alloy, corrects the defect of tungsten carbide lattice.Meanwhile, in the present invention
In, Cr is added in co binder, the opposite FCC phase in version of HCP for suppressing cobalt is can aid in, so as to improve the same of alloy ductility
When, the reaction of Binder Phase and rapidoprint is reduced, contributes to heat-resistant anti-fatigue performance, corrosion resisting property and the antioxygenic property of alloy
Raising.But Cr is added in Binder Phase can excessively react with cobalt, form brittle σ phases or η phases, the Cr of addition is very few,
But the requirement for suppressing cobalt phase in version is not reached.Re is metallic element, is also one of refractory metal, can be with cobalt under certain condition
Solid solution is generated, and the fusing point of solid solution is improved with the increase of Re contents.No matter at room temperature or at high temperature, contain
The intensity and hardness for having Re hard alloy are all higher than the hard alloy without Re.Therefore in the hard of hard alloy saw blade of the present invention
In matter alloy material, addition Re can improve the viscous of softening temperature, reduction and the machined material of hard alloy in co binder
The property, so as to be obviously improved its performance.
It is another object of the present invention to provide a kind of preparation method of above-mentioned hard alloy saw blade, described method bag
Include following steps：
Mixing：Hardmetal materials as described above are added into wet-milling in ball mill and obtain mixed slurry, mixed slurry filtering,
Dry mixture.
It is compressing：Mixture is put into respectively and compressing in saw bit matrix mould and saw blade sawtooth mould obtains saw blade
Matrix blank and saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are sintered in a vacuum, crystal grain is added while sintering
Grow up inhibitor, high temperature insostatic pressing (HIP) obtains saw bit matrix and saw blade sawtooth after sintering；
Welding：Saw blade sawtooth is welded on saw bit matrix by Cu-Ag solders and obtains saw blade semi-finished product；
Grinding：Semi-finished product are used into automatic grinding technology, all angles of sawtooth are ground；
Coating：Final products hard alloy saw blade is obtained in saw blade surface of semi-finished applying coating.
Can be before coating step also after the coating step in the preparation method grinding step of hard alloy saw blade of the present invention
Carry out.
In the preparation method of above-mentioned hard alloy, the solvent in ball mill used in wet-milling is D70 solvent naphthas, its addition
For every kilogram of Hardmetal materials addition D70 solvent naphthas 200-300ml.
In the preparation method of above-mentioned hard alloy, the powder size obtained after wet-milling is 1-2 μm.
In the preparation method of above-mentioned hard alloy, drying temperature is 100-120 DEG C.
In the preparation method of above-mentioned hard alloy, drying time is 30-40min.
In the preparation method of above-mentioned hard alloy, pressure during compacting is 30-50MPa.
In the preparation method of above-mentioned hard alloy, the addition of grain growth inhibitor accounts for hard alloy substrate during sintering
The 0.02-0.05% of gross mass.
In the preparation method of above-mentioned hard alloy, described grain growth inhibitor be one kind in VC, TiC, NbC or
It is a variety of.The addition of grain growth inhibitor can suppress growing up for tungsten carbide crystal grain so that crystal grain is substantially refined, and crystallite dimension model
Distribution narrow is enclosed, the hardness and rigidity of alloy is improved a lot.
In the preparation method of above-mentioned hard alloy, also include quenching before saw bit matrix blank and saw blade sawtooth blank sintering
Processing, hardening heat is 820-850 DEG C, and the cool time is 5-10 minutes；Also include temper after sintering before high temperature insostatic pressing (HIP), return
Fiery temperature is 380-420 DEG C, and tempering time is 5-7h.
In the preparation method of above-mentioned hard alloy, sintering temperature is 1300-1500 DEG C.
In the preparation method of above-mentioned hard alloy, the temperature of high temperature insostatic pressing (HIP) is 1400-1550 DEG C, and pressure is 100-
120MPa.Heat and other static pressuring processes are placed into product in closed container, are applied each to equal pressure to product, are applied simultaneously
With high temperature, under the influence of high pressure and temperature, product is able to sinter and is densified.
In the preparation method of above-mentioned hard alloy, the temperature of the welding is 800-1000 DEG C.
In the preparation method of above-mentioned hard alloy, coating coating uses physical vaporous deposition (PVD) technique.Physics gas
Phase sedimentation is, by evaporation, the process such as ionization or sputtering, to produce metallic and being reacted with reacting gas and to form compound and sink
Product is in workpiece surface.Coating coating is carried out to hard alloy substrate by this method, the cutting ability of hard alloy can be improved
With the surface roughness of reduction hard alloy, so as to reduce friction when cutter is used, cutting temperature is reduced, extension is used
Cutter life.
Compared with prior art, the invention has the advantages that：
1st, the present invention is using metal hard phase and metal adhesive as matrix, and wherein metal hard phase is by major carbonization tungsten powder
Composition, metal adhesive is mainly made up of cobalt, and is applied on matrix coated with coating, while adding in the carbide matrix material
Enter Pr6O11And nitrogen, the hard alloy enabled to has high intensity, hardness and rigidity.
2nd, grain growth inhibitor is added in the hard alloy saw blade preparation process of the present invention, suppresses tungsten carbide crystal grain
Grow up so that crystal grain is substantially refined, and grain size range distribution narrow, makes the hardness and rigidity of alloy and has very big carry
It is high.
3rd, the Hardmetal materials composition configuration of hard alloy saw blade of the present invention is reasonable, makes each element by synergy,
And specific preparation method is used, while using high temperature insostatic pressing (HIP), physical vaporous deposition etc., thus obtained hard alloy saw blade
With high rigidity, high intensity and high rigidity.
Brief description of the drawings
Fig. 1 is the structural representation of hard alloy saw blade of the present invention.
In figure, 1：Saw bit matrix；2：Sawtooth；3：Centre bore；4 be thermal expansion groove；5：Tension ring.
Embodiment
The following is the specific embodiment of the present invention, technical scheme is further described with reference to accompanying drawing, but
The present invention is not limited to these embodiments.
The constituent and its parts by weight of the 1-5 hard alloy saw blades of the embodiment of the present invention of table 1
Embodiment 1：
Mixing：Parts by weight as described in embodiment 1 in table 1 weigh Hardmetal materials and added in ball mill, wherein carbon
The grain size for changing tungsten powder is 0.3 μm, the Re containing 2% Cr and 0.2% in co binder, and adds D70 solvent naphthas
200ml wet-millings to powder size is 1 μm and obtains mixed slurry, after mixed slurry filtering, and drying 30min under the conditions of 100 DEG C must mix
Compound；
It is compressing：Under the conditions of pressure is 30MPa, mixture is put into saw bit matrix mould and saw blade sawtooth mould respectively
It is compressing in tool to obtain saw bit matrix blank and saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are subjected to Quenching Treatment, hardening heat is 820 DEG C, during quenching
Between be 5 minutes；Quenching is sintered in a vacuum after terminating, and sintering temperature is 1300 DEG C, 0.02% is added while sintering brilliant
The big inhibitor of grain length, wherein grain growth inhibitor are VC, are tempered, returned under the conditions of temperature is 380 DEG C after terminating
The fiery time be 5h, tempering terminate after temperature be 1400 DEG C, pressure be 100MPa under the conditions of high temperature insostatic pressing (HIP) obtain saw bit matrix and
Saw blade sawtooth；
Welding：By saw blade sawtooth by Cu-Ag solders be welded under the conditions of 800 DEG C on saw bit matrix saw blade half into
Product；
Grinding：Semi-finished product are used into automatic grinding technology, all angles of sawtooth are ground；
Coating：5 μm of diamond CVD coatings are coated in saw blade surface of semi-finished using physical vaporous deposition finally to be produced
Product hard alloy saw blade.
Embodiment 2：
Mixing：Parts by weight as described in embodiment 2 in table 1 weigh Hardmetal materials and added in ball mill, wherein carbon
The grain size for changing tungsten powder is 0.32 μm, the Re containing 2.1% Cr and 0.23% in co binder, and adds D70 solvents
Oily 210ml wet-millings to powder size is 1.1 μm and obtains mixed slurry, and after mixed slurry filtering, 31min is dried under the conditions of 102 DEG C
Obtain mixture；
It is compressing：Under the conditions of pressure is 32MPa, mixture is put into saw bit matrix mould and saw blade sawtooth mould respectively
It is compressing in tool to obtain saw bit matrix blank and saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are subjected to Quenching Treatment, hardening heat is 823 DEG C, during quenching
Between be 5.5 minutes；Quenching is sintered in a vacuum after terminating, and sintering temperature is 1320 DEG C, and 0.023% is added while sintering
Grain growth inhibitor, wherein grain growth inhibitor are VC and TiC, are carried out after terminating under the conditions of temperature is 384 DEG C
Tempering, tempering time is 5.2h, and it is 1415 DEG C to be tempered after terminating in temperature, and pressure is sawed for high temperature insostatic pressing (HIP) under the conditions of 102MPa
Sheet matrix and saw blade sawtooth；
Welding：By saw blade sawtooth by Cu-Ag solders be welded under the conditions of 820 DEG C on saw bit matrix saw blade half into
Product；
Grinding：Semi-finished product are used into automatic grinding technology, all angles of sawtooth are ground；
Coating：6.5 μm of diamond CVD coatings are coated in saw blade surface of semi-finished using physical vaporous deposition to obtain finally
Product hard alloy saw blade.
Embodiment 3：
Mixing：Parts by weight as described in embodiment 3 in table 1 weigh Hardmetal materials and added in ball mill, wherein carbon
The grain size for changing tungsten powder is 0.34 μm, the Re containing 2.2% Cr and 0.26% in co binder, and adds D70 solvents
Oily 220ml wet-millings to powder size is 1.2 μm and obtains mixed slurry, and after mixed slurry filtering, 32min is dried under the conditions of 104 DEG C
Obtain mixture；
It is compressing：Under the conditions of pressure is 34MPa, mixture is put into saw bit matrix mould and saw blade sawtooth mould respectively
It is compressing in tool to obtain saw bit matrix blank and saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are subjected to Quenching Treatment, hardening heat is 826 DEG C, during quenching
Between be 6 minutes；Quenching is sintered in a vacuum after terminating, and sintering temperature is 1340 DEG C, 0.026% is added while sintering brilliant
The big inhibitor of grain length, wherein grain growth inhibitor are TiC, are tempered, returned under the conditions of temperature is 388 DEG C after terminating
The fiery time is 5.4h, and it is 1430 DEG C to be tempered after terminating in temperature, and pressure obtains saw bit matrix for high temperature insostatic pressing (HIP) under the conditions of 104MPa
And saw blade sawtooth；
Welding：By saw blade sawtooth by Cu-Ag solders be welded under the conditions of 840 DEG C on saw bit matrix saw blade half into
Product；
Grinding：Semi-finished product are used into automatic grinding technology, all angles of sawtooth are ground；
Coating：8 μm of diamond CVD coatings are coated in saw blade surface of semi-finished using physical vaporous deposition finally to be produced
Product hard alloy saw blade.
Embodiment 4：
Mixing：Parts by weight as described in embodiment 4 in table 1 weigh Hardmetal materials and added in ball mill, wherein carbon
The grain size for changing tungsten powder is 0.36 μm, the Re containing 2.3% Cr and 0.29% in co binder, and adds D70 solvents
Oily 230ml wet-millings to powder size is 1.3 μm and obtains mixed slurry, and after mixed slurry filtering, 33min is dried under the conditions of 106 DEG C
Obtain mixture；
It is compressing：Under the conditions of pressure is 36MPa, mixture is put into saw bit matrix mould and saw blade sawtooth mould respectively
It is compressing in tool to obtain saw bit matrix blank and saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are subjected to Quenching Treatment, hardening heat is 829 DEG C, during quenching
Between be 6.5 minutes；Quenching is sintered in a vacuum after terminating, and sintering temperature is 1360 DEG C, and 0.029% is added while sintering
Grain growth inhibitor, wherein grain growth inhibitor are TiC and NbC, are carried out after terminating under the conditions of temperature is 392 DEG C
Tempering, tempering time is 5.6h, and it is 1445 DEG C to be tempered after terminating in temperature, and pressure is sawed for high temperature insostatic pressing (HIP) under the conditions of 106MPa
Sheet matrix and saw blade sawtooth；
Welding：By saw blade sawtooth by Cu-Ag solders be welded under the conditions of 860 DEG C on saw bit matrix saw blade half into
Product；
Grinding：Semi-finished product are used into automatic grinding technology, all angles of sawtooth are ground；
Coating：9.5 μm of diamond CVD coatings are coated in saw blade surface of semi-finished using physical vaporous deposition to obtain finally
Product hard alloy saw blade.
Embodiment 5：
Mixing：Parts by weight as described in embodiment 5 in table 1 weigh Hardmetal materials and added in ball mill, wherein carbon
The grain size for changing tungsten powder is 0.38 μm, the Re containing 2.4% Cr and 0.32% in co binder, and adds D70 solvents
Oily 240ml wet-millings to powder size is 1.4 μm and obtains mixed slurry, and after mixed slurry filtering, 34min is dried under the conditions of 108 DEG C
Obtain mixture；
It is compressing：Under the conditions of pressure is 38MPa, mixture is put into saw bit matrix mould and saw blade sawtooth mould respectively
It is compressing in tool to obtain saw bit matrix blank and saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are subjected to Quenching Treatment, hardening heat is 832 DEG C, during quenching
Between be 7 minutes；Quenching is sintered in a vacuum after terminating, and sintering temperature is 1380 DEG C, 0.032% is added while sintering brilliant
The big inhibitor of grain length, wherein grain growth inhibitor are TiC and NbC, are returned after terminating under the conditions of temperature is 396 DEG C
Fire, tempering time is 5.8h, and it is 1460 DEG C to be tempered after terminating in temperature, and pressure obtains saw blade for high temperature insostatic pressing (HIP) under the conditions of 108MPa
Matrix and saw blade sawtooth；
Welding：By saw blade sawtooth by Cu-Ag solders be welded under the conditions of 880 DEG C on saw bit matrix saw blade half into
Product；
Grinding：Semi-finished product are used into automatic grinding technology, all angles of sawtooth are ground；
Coating：Saw blade sawtooth is welded on aluminium Si solder powder under the conditions of 588 DEG C on saw bit matrix and obtains saw blade semi-finished product,
And obtain final products hard alloy using physical vaporous deposition 11 μm of diamond CVD coatings of coating in saw blade surface of semi-finished
Saw blade.
The constituent and parts by weight of the 6-10 hard alloy saw blades of the embodiment of the present invention of table 2
Embodiment 6：
Mixing：Parts by weight as described in embodiment 6 in table 2 weigh Hardmetal materials and added in ball mill, wherein carbon
The grain size for changing tungsten powder is 0.4 μm, the Re containing 2.5% Cr and 0.35% in co binder, and adds D70 solvent naphthas
250ml wet-millings to powder size is 1.5 μm and obtains mixed slurry, after mixed slurry filtering, and drying 35min under the conditions of 110 DEG C obtains
Mixture；
It is compressing：Under the conditions of pressure is 40MPa, mixture is put into saw bit matrix mould and saw blade sawtooth mould respectively
It is compressing in tool to obtain saw bit matrix blank and saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are subjected to Quenching Treatment, hardening heat is 835 DEG C, during quenching
Between be 7.5 minutes；Quenching is sintered in a vacuum after terminating, and sintering temperature is 1400 DEG C, and 0.035% is added while sintering
Grain growth inhibitor, wherein grain growth inhibitor are TiC, NbC and VC, after terminating under the conditions of temperature is 400 DEG C
It is tempered, tempering time is 6h, it is 1480 DEG C to be tempered after terminating in temperature, and pressure obtains for high temperature insostatic pressing (HIP) under the conditions of 110MPa
Saw bit matrix and saw blade sawtooth；
Welding：By saw blade sawtooth by Cu-Ag solders be welded under the conditions of 900 DEG C on saw bit matrix saw blade half into
Product；
Grinding：Semi-finished product are used into automatic grinding technology, all angles of sawtooth are ground；
Coating：12.5 μm of diamond CVD coatings are coated in saw blade surface of semi-finished using physical vaporous deposition to obtain most
Finished product hard alloy saw blade.
Embodiment 7：
Mixing：Parts by weight as described in embodiment 7 in table 2 weigh Hardmetal materials and added in ball mill, wherein carbon
The grain size for changing tungsten powder is 0.42 μm, the Re containing 2.6% Cr and 0.38% in co binder, and adds D70 solvents
Oily 260ml wet-millings to powder size is 1.6 μm and obtains mixed slurry, and after mixed slurry filtering, 36min is dried under the conditions of 112 DEG C
Obtain mixture；
It is compressing：Under the conditions of pressure is 42MPa, mixture is put into saw bit matrix mould and saw blade sawtooth mould respectively
It is compressing in tool to obtain saw bit matrix blank and saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are subjected to Quenching Treatment, hardening heat is 838 DEG C, during quenching
Between be 8 minutes；Quenching is sintered in a vacuum after terminating, and sintering temperature is 1420 DEG C, 0.038% is added while sintering brilliant
The big inhibitor of grain length, wherein grain growth inhibitor are VC, are tempered, returned under the conditions of temperature is 404 DEG C after terminating
The fiery time is 6.2h, and it is 1495 DEG C to be tempered after terminating in temperature, and pressure obtains saw bit matrix for high temperature insostatic pressing (HIP) under the conditions of 112MPa
And saw blade sawtooth；
Welding：By saw blade sawtooth by Cu-Ag solders be welded under the conditions of 920 DEG C on saw bit matrix saw blade half into
Product；
Grinding：Semi-finished product are used into automatic grinding technology, all angles of sawtooth are ground；
Coating：14 μm of diamond CVD coatings are coated in saw blade surface of semi-finished using physical vaporous deposition to obtain finally
Product hard alloy saw blade.
Embodiment 8：
Mixing：Parts by weight as described in embodiment 8 in table 2 weigh Hardmetal materials and added in ball mill, wherein carbon
The grain size for changing tungsten powder is 0.44 μm, the Re containing 2.7% Cr and 0.41% in co binder, and adds D70 solvents
Oily 270ml wet-millings to powder size is 1.7 μm and obtains mixed slurry, and after mixed slurry filtering, 37min is dried under the conditions of 114 DEG C
Obtain mixture；
It is compressing：Under the conditions of pressure is 44MPa, mixture is put into saw bit matrix mould and saw blade sawtooth mould respectively
It is compressing in tool to obtain saw bit matrix blank and saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are subjected to Quenching Treatment, hardening heat is 841 DEG C, during quenching
Between be 8.5 minutes；Quenching is sintered in a vacuum after terminating, and sintering temperature is 1440 DEG C, and 0.041% is added while sintering
Grain growth inhibitor, wherein grain growth inhibitor are VC and TiC, are carried out after terminating under the conditions of temperature is 408 DEG C
Tempering, tempering time is 6.4h, and it is 1515 DEG C to be tempered after terminating in temperature, and pressure is sawed for high temperature insostatic pressing (HIP) under the conditions of 114MPa
Sheet matrix and saw blade sawtooth；
Welding：By saw blade sawtooth by Cu-Ag solders be welded under the conditions of 940 DEG C on saw bit matrix saw blade half into
Product；
Grinding：Semi-finished product are used into automatic grinding technology, all angles of sawtooth are ground；
Coating：16 μm of diamond CVD coatings are coated in saw blade surface of semi-finished using physical vaporous deposition to obtain finally
Product hard alloy saw blade.
Embodiment 9：
Mixing：Parts by weight as described in embodiment 9 in table 2 weigh Hardmetal materials and added in ball mill, wherein carbon
The grain size for changing tungsten powder is 0.47 μm, the Re containing 2.9% Cr and 0.46% in co binder, and adds D70 solvents
Oily 285ml wet-millings to powder size is 1.8 μm and obtains mixed slurry, and after mixed slurry filtering, 38min is dried under the conditions of 116 DEG C
Obtain mixture；
It is compressing：Under the conditions of pressure is 47MPa, mixture is put into saw bit matrix mould and saw blade sawtooth mould respectively
It is compressing in tool to obtain saw bit matrix blank and saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are subjected to Quenching Treatment, hardening heat is 847 DEG C, during quenching
Between be 9.4 minutes；Quenching is sintered in a vacuum after terminating, and sintering temperature is 1470 DEG C, and 0.045% is added while sintering
Grain growth inhibitor, wherein grain growth inhibitor are NbC, are tempered after terminating under the conditions of temperature is 415 DEG C,
Tempering time is 6.7h, and it is 1530 DEG C to be tempered after terminating in temperature, and pressure obtains saw blade base for high temperature insostatic pressing (HIP) under the conditions of 117MPa
Body and saw blade sawtooth；
Welding：By saw blade sawtooth by Cu-Ag solders be welded under the conditions of 970 DEG C on saw bit matrix saw blade half into
Product；
Grinding：Semi-finished product are used into automatic grinding technology, all angles of sawtooth are ground；
Coating：18 μm of diamond CVD coatings are coated in saw blade surface of semi-finished using physical vaporous deposition to obtain finally
Product hard alloy saw blade.
Embodiment 10：
Mixing：Parts by weight as described in embodiment 10 in table 2 weigh Hardmetal materials and added in ball mill, wherein carbon
The grain size for changing tungsten powder is 0.5 μm, the Re containing 3% Cr and 0.5% in co binder, and adds D70 solvent naphthas
300ml wet-millings to powder size is 2.0 μm and obtains mixed slurry, after mixed slurry filtering, and drying 40min under the conditions of 120 DEG C obtains
Mixture；
It is compressing：Under the conditions of pressure is 50MPa, mixture is put into saw bit matrix mould and saw blade sawtooth mould respectively
It is compressing in tool to obtain saw bit matrix blank and saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are subjected to Quenching Treatment, hardening heat is 850 DEG C, during quenching
Between be 10 minutes；Quenching is sintered in a vacuum after terminating, and sintering temperature is 1500 DEG C, 0.05% is added while sintering brilliant
The big inhibitor of grain length, wherein grain growth inhibitor are NbC, are tempered, returned under the conditions of temperature is 420 DEG C after terminating
The fiery time be 7h, tempering terminate after temperature be 1550 DEG C, pressure be 120MPa under the conditions of high temperature insostatic pressing (HIP) obtain saw bit matrix and
Saw blade sawtooth；
Welding：By saw blade sawtooth by Cu-Ag solders be welded under the conditions of 1000 DEG C on saw bit matrix saw blade half into
Product；
Coating：20 μm of diamond CVD coatings are coated using physical vaporous deposition in saw blade surface of semi-finished, then used
Automatic grinding technology, grinds all angles of sawtooth, obtains final products hard alloy saw blade.
Comparative example 1：
Choose commercially available Hardmetal materials and hard alloy saw blade is made using method as described in example 1 above.
Comparative example 2：
With differing only in for embodiment 1, coating is not contained in the comparative example Hardmetal materials, i.e., need not be carried out most
Coating afterwards, other are same as Example 1, are not repeated herein.
Comparative example 3：
With differing only in for embodiment 1, Pr is not contained in the carbide matrix material of the comparative example6O11, other with
Embodiment 1 is identical, is not repeated herein.
Comparative example 4：
With differing only in for embodiment 1, do not contain hardening agent in the carbide matrix material of the comparative example, other with
Embodiment 1 is identical, is not repeated herein.
Comparative example 5：
With differing only in for embodiment 1, do not contain in the co binder of the comparative example carbide matrix material Cr and
Re, other are same as Example 1, are not repeated herein.
Comparative example 6
With differing only in for embodiment 1, the comparative example in sintering without grain growth inhibitor, other and implementation
Example 1 is identical, is not repeated herein.
Performance detection, obtained number are carried out to obtained hard alloy saw blade in above-described embodiment 1-10 and comparative example 1-6
According to as shown in table 3.
Table 3：The performance test of hard alloy saw blade in embodiment 1-10 and comparative example 1-6
Compared with prior art, the present invention uses the rational hard alloy of compatibility, also added in Hardmetal materials
Pr6O11, nitrogen, hardening agent, also define its content in component, each element can be made by synergy, and by mixed
Close, then repressed shaping, sintering, coating, while using high temperature insostatic pressing (HIP), physical vaporous deposition etc., thus obtained hard is closed
Golden saw blade has the advantages that high rigidity, high intensity and high rigidity.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of hard alloy saw blade, it is characterised in that including saw bit matrix, hard alloy sawtooth, the welding of hard alloy sawtooth
On saw bit matrix, saw bit matrix circumference is evenly distributed in, hard alloy saw blade center is provided with the center for being used for fixing saw blade
Hole, sawtooth bottom is provided with space chip pocket；Described hard alloy saw blade is made up of Hardmetal materials, Hardmetal materials bag
Include hard alloy substrate and be coated in the coating of cemented carbide substrate surfaces, the material of the hard alloy substrate includes following weight
Measure the composition of part：80-85 parts of tungsten-carbide powder, 5-10 parts of co binder, Pr6O11：0.5-1.0 parts, 0.2-0.3 parts of nitrogen, hardening
Agent：0.5-0.8 parts.
2. hard alloy saw blade according to claim 1, it is characterised in that the thickness of the coating is 3-5 μm.
3. hard alloy saw blade according to claim 1 or 2, it is characterised in that the coating is diamond CVD coating.
4. hard alloy saw blade according to claim 1, it is characterised in that the grain size of the tungsten-carbide powder is
0.1-0.3μm。
5. hard alloy saw blade according to claim 1, it is characterised in that the hardening agent is in graphene, quartz sand
One or two.
6. hard alloy saw blade according to claim 1, it is characterised in that the Cr containing 2-3% in the co binder
With 0.2-0.5% Re, remaining is cobalt.
7. a kind of preparation method of hard alloy saw blade, it is characterised in that the preparation method comprises the following steps：
Mixing：Hardmetal materials as claimed in claim 1 are added into wet-milling in ball mill and obtain mixed slurry, mixed slurry mistake
Filter, dry mixture；
It is compressing：Mixture is put into respectively and compressing in sawtooth mould obtains saw blade sawtooth blank；
Sintering：Saw bit matrix blank and saw blade sawtooth blank are sintered in a vacuum, crystal grain is added while sintering and is grown up
High temperature insostatic pressing (HIP) obtains saw bit matrix and saw blade sawtooth after inhibitor, sintering；
Welding：Saw blade sawtooth is welded on saw bit matrix by Cu-Ag solders and obtains saw blade semi-finished product；
Grinding：Semi-finished product are used into automatic grinding technology, all angles of sawtooth are ground；
Coating：Final products hard alloy saw blade is obtained in saw blade surface of semi-finished applying coating.
8. hard alloy saw blade preparation method according to claim 7, it is characterised in that grain growth inhibitor during sintering
Addition account for the 0.02-0.05% of hard alloy substrate gross mass.
9. hard alloy saw blade preparation method according to claim 8, it is characterised in that described grain growth inhibitor
For the one or more in VC, TiC, NbC.
10. the preparation method of hard alloy saw blade according to claim 7, it is characterised in that saw bit matrix blank and saw
Also include Quenching Treatment before blade saw gear blank part sintering, hardening heat is 820-850 DEG C, and the cool time is 5-10 minutes；After sintering
Also include temper before high temperature insostatic pressing (HIP), temperature is 380-420 DEG C, and tempering time is 5-7h.
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| CN108115142A (en) * | 2017-12-25 | 2018-06-05 | 富耐克超硬材料股份有限公司 | Diamond compact and preparation method thereof |
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| CN113199209A (en) * | 2021-04-02 | 2021-08-03 | 无锡蓬天工具有限公司 | High-strength hole saw and manufacturing method thereof |
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| CN108115142A (en) * | 2017-12-25 | 2018-06-05 | 富耐克超硬材料股份有限公司 | Diamond compact and preparation method thereof |
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| CN108555392A (en) * | 2018-06-11 | 2018-09-21 | 杭州和源精密工具有限公司 | The preparation method of oversize cold saw |
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| CN110527891A (en) * | 2019-09-16 | 2019-12-03 | 东华大学 | Hard alloy in low cobalt surface diamond coating and preparation method thereof |
| CN110527891B (en) * | 2019-09-16 | 2021-11-02 | 东华大学 | Low-cobalt hard alloy surface diamond coating and preparation method thereof |
| 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 |
| CN113199209A (en) * | 2021-04-02 | 2021-08-03 | 无锡蓬天工具有限公司 | High-strength hole saw and manufacturing method thereof |
| CN113199209B (en) * | 2021-04-02 | 2022-04-15 | 无锡蓬天工具有限公司 | High-strength hole saw and manufacturing method thereof |
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Application publication date: 20171024 |