CN107363255B - Powdered filler metal for compact diamond tool - Google Patents
Powdered filler metal for compact diamond tool Download PDFInfo
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- CN107363255B CN107363255B CN201710456325.4A CN201710456325A CN107363255B CN 107363255 B CN107363255 B CN 107363255B CN 201710456325 A CN201710456325 A CN 201710456325A CN 107363255 B CN107363255 B CN 107363255B
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 63
- 239000010432 diamond Substances 0.000 title claims abstract description 63
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 37
- 239000002184 metal Substances 0.000 title claims abstract description 37
- 239000000945 filler Substances 0.000 title claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 85
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000011521 glass Substances 0.000 claims abstract description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 14
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 9
- 238000005245 sintering Methods 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 6
- SKEYZPJKRDZMJG-UHFFFAOYSA-N cerium copper Chemical compound [Cu].[Ce] SKEYZPJKRDZMJG-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 5
- DOARWPHSJVUWFT-UHFFFAOYSA-N lanthanum nickel Chemical compound [Ni].[La] DOARWPHSJVUWFT-UHFFFAOYSA-N 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims description 3
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 12
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 23
- 238000004080 punching Methods 0.000 description 12
- 238000002156 mixing Methods 0.000 description 9
- 239000003973 paint Substances 0.000 description 9
- 238000005469 granulation Methods 0.000 description 8
- 230000003179 granulation Effects 0.000 description 8
- 238000001272 pressureless sintering Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000000227 grinding Methods 0.000 description 7
- 239000004615 ingredient Substances 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000003979 granulating agent Substances 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000010438 granite Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B22F1/0003—
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- 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
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- 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
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
-
- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Powder Metallurgy (AREA)
Abstract
The present invention relates to a kind of powdered filler metals for compact diamond tool, belong to the technical field of metal powder material.Powdered filler metal of the invention, EXD606 alloyed powder, the LFP alloyed powder of 8-12 (weight) %, the glass putty of 6-8 (weight) %, the nickel powder of 8-12 (weight) %, the silicon powder of 0-2 (weight) %, the rare earth element powder of 0-4 (weight) % and the copper powder of surplus including 28-32 (weight) %.On the one hand powdered filler metal of the invention can guarantee the infiltration of diamond particles and obtain required holding power, and the microscopic structure of tyre body alloy is improved using EXD606 alloyed powder and LFP alloyed powder, preferably solves the problems, such as carcass reduction, so that carcass obtains the wearability to match with high-speed cutting operating condition, the cutting ability and service life of compact diamond tool can be significantly improved.
Description
Technical field
The present invention relates to the technical fields of metal powder material, it is more particularly related to which a kind of be used for diamond
The powdered filler metal of sintering tool.
Background technique
Compact diamond tool is with diamond for cutting material, by means of having made of solder (also known as bonding agent)
The tool of certain shapes, performance and purposes, common compact diamond tool include saw blade, emery wheel, cut piece and roller
Deng.Compact diamond tool has been widely used for cutting for the stone materials such as marble, granite, concrete or construction material at present
It cuts, finishing, grinding etc..There are two the main left and right of solder used by compact diamond tool: one is by wear-resisting material
Material connects into grid frame and holds diamond；The second is can wear away with the abrasion of diamond, diamond is made normally to go out sword.Pricker
Material, if having certain wellability to diamond, will be mentioned greatly other than with certain hardness, toughness and wearability
The height of protrusion of high diamond, so as to improve grinding performance.The diamond cutting grinding being on active service under high rotational speeds is come
It says, on the one hand needs to guarantee that solder is big to the holding power that diamond particles are high, on the other hand it is also desirable to have higher wear-resistant
Performance.But the pre-alloyed powder generallyd use in the prior art although can be improved diamond and metallic bond holding power and
Wellability, but to frequently can lead to carcass surface weakened for prealloy powder, and wearability is significantly reduced, to cannot be transported with high speed
The piece that cuts turned is adapted.
Summary of the invention
Good cutting efficiency and service life are had concurrently in order to obtain, and the present invention provides one kind to be used for diamond sintering work
The powdered filler metal of tool.
In order to achieve the above-mentioned object of the invention, the first aspect of the present invention uses following technical scheme:
A kind of powdered filler metal for compact diamond tool, EXD606 alloyed powder, 8-12 including 28-32 (weight) %
The LFP alloyed powder of (weight) %, the glass putty of 6-8 (weight) %, the nickel powder of 8-12 (weight) %, 0-2 (weight) % silicon powder, 0-
The rare earth element powder of 4 (weight) % and the copper powder of surplus.
Preferably, the powdered filler metal includes the EXD606 alloyed powder of 28-30 (weight) %, 8-10 (weight) %
LFP alloyed powder, the glass putty of 6-8 (weight) %, the nickel powder of 8-12 (weight) %, the silicon powder of 1-2 (weight) %, 0.2-1 (weight
Amount) rare earth alloy powder of % and the copper powder of surplus.
Wherein, the EXD606 alloyed powder is by the copper powder of 28-35 (weight) %, the nickel powder of 4-7 (weight) %, 4-8 (weight
Amount) cobalt powder of %, the glass putty of 3-7 (weight) %, the chromium powder of 1-3 (weight) %, 0.2-1 (weight) % rare earth alloy powder, with
And the iron powder composition of 53-58 (weight) %.The EXD606 alloyed powder is gas-atomised powders, and diameter is 10 μm or less.
Wherein, the LFP alloyed powder is by the copper powder of 15-16 (weight) %, the glass putty of 3~4 (weight) %, 10~12 (weights
Amount) nickel powder of %, the cobalt powder of 1-3 (weight) % and surplus iron powder composition.The LFP alloyed powder is electrolytic powder, diameter
It is 5 μm or less.
Wherein, one of the rare earth element powder selected from cerium powder, lanthanum powder, cerium copper alloy powder or lanthanum nickel alloy powder.
Compared with the immediate prior art, the powdered filler metal for compact diamond tool of the invention has with following
Beneficial effect:
Powdered filler metal of the invention can guarantee the infiltration of diamond particles and obtain required holding power, and use
EXD606 alloyed powder and LFP alloyed powder improve the microscopic structure of tyre body alloy, preferably solve the problems, such as carcass reduction, make
It obtains carcass and obtains the wearability to match with high-speed cutting operating condition, so as to significantly improve the cutting of compact diamond tool
Performance and used life.
Detailed description of the invention
Fig. 1 is the SEM figure of powdered filler metal of the invention in conjunction with diamond.
Specific embodiment
The powdered filler metal for compact diamond tool of the invention is done further below with reference to specific embodiment
It illustrates, to make more complete and clear explanation to technical solution of the present invention.
The present invention relates to a kind of powdered filler metals for compact diamond tool, by alloyed powder (also known as prealloy
Powder), metal powder and optionally rare earth element powder form.Specifically powdered filler metal of the invention includes 28-32 (weight) %
EXD606 alloyed powder, the LFP alloyed powder of 8-12 (weight) %, the glass putty of 6-8 (weight) %, 8-12 (weight) % nickel powder,
Silicon powder, the rare earth element powder of 0-4 (weight) % and the copper powder of surplus of 0-2 (weight) %.Further, the powdered filler metal
Glass putty, the 8- of the LFP alloyed powder of EXD606 alloyed powder, 8-10 (weight) % including 28-30 (weight) %, 6-8 (weight) %
The nickel powder of 12 (weight) %, the silicon powder of 1-2 (weight) %, the rare earth alloy powder of 0.2-1 (weight) % and surplus copper powder.Its
In, the EXD606 alloyed powder is gas-atomised powders, and diameter is 10 μm hereinafter, and by copper powder, the 4-7 of 28-35 (weight) %
The nickel powder of (weight) %, the cobalt powder of 4-8 (weight) %, the glass putty of 3-7 (weight) %, the chromium powder of 1-3 (weight) %, 0.2-1 (weight
Amount) % rare earth alloy powder and 53-58 (weight) % iron powder composition.The LFP alloyed powder is that diameter is 5 μm or less electricity
Solve powder, and by the copper powder of 15-16 (weight) %, the glass putty of 3~4 (weight) %, 10~12 (weight) % nickel powder, 1-3
The cobalt powder of (weight) % and the iron powder composition of surplus.In the present invention, the copper in metal powder, nickel powder are skeleton component, and tin
For low-melting component and mobility can be improved, increase wetability, in the present invention itself and EXD606 alloyed powder, LFP alloy
Powder is capable of forming congruent melting component, and sintered carcass has good microstructure, thus although its content is up to 6-8
(weight) %, will not cause intensity and wearability to be substantially reduced.Silicon is that optionally component, addition silicon can drop in the present invention
The fusion temperature of low solder and oxidation resistance is improved, and has the effect of that refining crystal grain improves wetability, but silicon is in copper
Solubility it is smaller, additional amount is more than 2% meeting so that the diamond matrix brittleness of sintering increases, thus is made in the present invention
For optional component, and content is limited within 2%.A small amount of rare earth element powder, such as cerium powder, lanthanum are added in solder
Powder, cerium copper alloy powder or lanthanum nickel alloy powder etc. can prevent the oxidation of powdered filler metal in sintering process, and it can also be with simultaneously
Crystal boundary is purified, to improve the cracking resistance anti-fatigue performance of diamond matrix, its effect reaches when its additive amount reaches 4% or more
Saturation, and usually its content can play when reaching 0.2~0.5% or so and apparent improve grain boundary structure, oxidation resistant effect
Fruit, thus its preferably content range can be limited to 0.2-1 (weight) %.
According to practical application and the Heuristics grasped, generally selects varigrained diamond and arrange in pairs or groups with full
It is required of both foot cutting and quality, such as (such as piece is cut for the cutting of marble, granite, cement concrete etc.
Or dry chip etc.), it can choose granularity usually as 35/40,40/50,50/60 diamond particles progress gradation, and diamond
Concentration also will affect stock-removing efficiency and service life, generally if diamond concentration is too small, suffered by average every diamond
Load with regard to big, and in cutting process, be easy to cause diamond broken and fall off.And on the other hand, if the concentration of diamond
It is excessive, and will lead to the abrasion of carcass difficulty, diamond exposure is difficult, to reduce sharpness, equally will affect cutting efficiency.Thus
In the present invention, select the concentration of diamond for 0.6~0.8ct/cm3。
Fig. 1 is shown to be schemed using the SEM of powdered filler metal and diamond particles sinter bonded of the invention, diamond therein
Particle is embedded in carcass made of powdered filler metal sintering, it is shown that powdered filler metal of the invention can guarantee the leaching of diamond
Moisten and obtain required holding power, and improves the microscopic structure of tyre body alloy using EXD606 alloyed powder and LFP alloyed powder,
Preferably solves the problems, such as carcass reduction, the tyre body hardness of sintering is high, and wearability is good, and sintering carcass is enabled to cut with high speed
It cuts operating condition to match, and then significantly improves the cutting ability and service life of compact diamond tool.
It is to prepare diameterTo be made for the compact diamond tool of 155mm to the application of powdered filler metal of the invention
It further explains.In the present invention, disc matrix material selection with a thickness of 2.2mm 65Mn steel (by quenching and
Average tempering, to meet service performance requirement), it is sintered to form dry diamond slice in the outer edge two sides of disc matrix.
After the completion of powdered filler metal and diamond particles ingredient of the invention, carry out including flat in three-dimensional material mixer
Motion continuation 2h including the movements such as shifting, rotation and rock and roll is full and uniform to guarantee to mix.The molding obtained after the completion of mixing
Material is added granulating agent and is simply granulated.Then moulds of industrial equipment are adjusted, molding mass is put into and matrix is cold-pressed, and two
Side forms U-type groove.Then the blank that cold pressing obtains is assembled in Graphite pad, is sintered under protective atmosphere, for this
The above-mentioned molding mass of invention, sintering temperature is at 850 DEG C.Pad is carried out after the completion of the sintering of left and right with scale removal, and is carried out
It puts the first edge on a knife or a pair of scissors and paints.
In the following Examples and Comparative Examples:
The EXD606 alloyed powder used is by the copper powder of 31 (weight) %, the nickel powder of 5.2 (weight) %, 4.2 (weight) %
Cobalt powder, the glass putty of 3.6 (weight) %, the chromium powder of 1.0 (weight) %, 1.5 (weight) % cerium copper alloy powder and 53.5
The iron powder of (weight) % is the gas-atomised powders of raw material preparation, and diameter is 10 μm or less.
The LFP alloyed powder used is the glass putty of copper powder, 3.6 (weight) % that ingredient is 15 (weight) %, 11.2 (weights
Amount) nickel powder of %, the cobalt powder of 1.2 (weight) % and 69 (weight) % iron powder electrolytic powder, diameter be 5 μm or less.
Embodiment 1
1) ingredient: in terms of weight percentage, 10 (weight) % of EXD606 alloy 30 (weight) %, LFP alloyed powder, glass putty
8 (weight) %, nickel powder 10 (weight) %, silicon powder 1.2 (weight) %, cerium copper alloy powder 0.8 (weight) %, copper powder surplus.In powder
The diamond concentration added in shape solder is 0.8ct/cm3, diamond grit 35/40 accounts for 20%, 40/50 and accounts for 50%, 50/60%
30% is accounted for, molding mass is blended into, using three-dimensional material mixer, obtains molding mass within mixing time 120 minutes.
2) letter is made: mixed molding mass is added in granulating agent and carries out mixing, it is simple to be granulated.
3) it is cold-pressed: adjusts moulds of industrial equipment, first launch the molding mass (being layered on lower surface) of granulation --- put 65Mn steel matrix-
The molding mass (being layered on upper surface) for launching granulation again, which is assembled into cold moudling punching block, to be press-formed, and briquetting pressure 20MPa is obtained
To blank.
4) pressureless sintering: the blank that cold pressing is formed is assembled in Graphite pad, is burnt in the environment of protective gas
Knot, sintering temperature is at 850 DEG C or so.
5) pad punching, put the first edge on a knife or a pair of scissors, paint: by the tool pad descale after pressureless sintering, punching, using blade grinding machine into
Row puts the first edge on a knife or a pair of scissors, and paints.
Embodiment 2
1) ingredient: in terms of weight percentage, EXD606 alloy 28%, LFP alloyed powder 12 (weight) %, (weight of glass putty 8
Amount) %, nickel powder 10 (weight) %, silicon powder 1.5 (weight) %, lanthanum nickel alloy powder 1 (weight) %, copper powder surplus.Add in powdery
The diamond concentration added is 0.8ct/cm3, diamond grit 35/40, which accounts for 20%, 40/50 and accounts for 50%, 50/60%, accounts for 30%, mixes
Molding mass is made, using three-dimensional material mixer, obtains molding mass within mixing time 120 minutes.
2) letter is made: mixed molding mass is added in granulating agent and carries out mixing, it is simple to be granulated.
3) it is cold-pressed: adjusts moulds of industrial equipment, first launch the molding mass (being layered on lower surface) of granulation --- put 65Mn steel matrix-
The molding mass (being layered on upper surface) for launching granulation again, which is assembled into cold moudling punching block, to be press-formed, and briquetting pressure 20MPa is obtained
To blank.
4) pressureless sintering: the blank that cold pressing is formed is assembled in Graphite pad, is burnt in the environment of protective gas
Knot, sintering temperature is at 870 DEG C or so.
5) pad punching, put the first edge on a knife or a pair of scissors, paint: by the tool pad descale after pressureless sintering, punching, using blade grinding machine into
Row puts the first edge on a knife or a pair of scissors, and paints.
Comparative example 1
1) ingredient: in terms of weight percentage, EXD606 alloy 40 (weight) %, glass putty 8 (weight) %, (weight of nickel powder 10
Amount) %, silicon powder 1.2 (weight) %, cerium copper alloy powder 0.8 (weight) %, copper powder surplus.The diamond added in powdered filler metal
Concentration is 0.8ct/cm3, diamond grit 35/40, which accounts for 20%, 40/50 and accounts for 50%, 50/60%, accounts for 30%, it is blended into molding mass,
Using three-dimensional material mixer, molding mass is obtained within mixing time 120 minutes.
2) letter is made: mixed molding mass is added in granulating agent and carries out mixing, it is simple to be granulated.
3) it is cold-pressed: adjusts moulds of industrial equipment, first launch the molding mass (being layered on lower surface) of granulation --- put 65Mn steel matrix-
The molding mass (being layered on upper surface) for launching granulation again, which is assembled into cold moudling punching block, to be press-formed, and briquetting pressure 20MPa is obtained
To blank.
4) pressureless sintering: the blank that cold pressing is formed is assembled in Graphite pad, is burnt in the environment of protective gas
Knot, sintering temperature is at 850 DEG C or so.
5) pad punching, put the first edge on a knife or a pair of scissors, paint: by the tool pad descale after pressureless sintering, punching, using blade grinding machine into
Row puts the first edge on a knife or a pair of scissors, and paints.
Comparative example 2
1) ingredient: in terms of weight percentage, LFP alloyed powder 40 (weight) %, glass putty 8 (weight) %, (weight of nickel powder 10
Amount) %, silicon powder 1.5 (weight) %, lanthanum nickel alloy powder 1 (weight) %, copper powder surplus.The diamond concentration added in powdery is
0.8ct/cm3, diamond grit 35/40, which accounts for 20%, 40/50 and accounts for 50%, 50/60%, accounts for 30%, molding mass is blended into, using three
Batch mixer is tieed up, obtains molding mass within mixing time 120 minutes.
2) letter is made: mixed molding mass is added in granulating agent and carries out mixing, it is simple to be granulated.
3) it is cold-pressed: adjusts moulds of industrial equipment, first launch the molding mass (being layered on lower surface) of granulation --- put 65Mn steel matrix-
The molding mass (being layered on upper surface) for launching granulation again, which is assembled into cold moudling punching block, to be press-formed, and briquetting pressure 20MPa is obtained
To blank.
4) pressureless sintering: the blank that cold pressing is formed is assembled in Graphite pad, is burnt in the environment of protective gas
Knot, sintering temperature is at 870 DEG C or so.
5) pad punching, put the first edge on a knife or a pair of scissors, paint: by the tool pad descale after pressureless sintering, punching, using blade grinding machine into
Row puts the first edge on a knife or a pair of scissors, and paints.
Cutting experiment (cutting speed 4.2m/min) is carried out to a thickness of the medium-hard granite plates of 20mm, accordingly
The cutting life on ground is as shown in table 1 (5 samples are averaged).
Table 1
| Embodiment 1 | Embodiment 2 | Comparative example 1 | Comparative example 2 | |
| Cutting life (m/ piece) | 651 | 669 | 530 | 572 |
As it can be seen that powdered filler metal of the service life for the dry chip that the powdered filler metal of inventive embodiments is sintered compared to comparative example
The dry chip of sintering, service life improve about 20% or so.And piece (water is cut using what powdered filler metal of the invention was sintered
It is cold) compared with the powdered filler metal of comparative example its working durability also about improve 20%.
For the ordinary skill in the art, specific embodiment is only exemplarily described the present invention,
Obviously the present invention specific implementation is not subject to the restrictions described above, as long as use the inventive concept and technical scheme of the present invention into
The improvement of capable various unsubstantialities, or not improved the conception and technical scheme of the invention are directly applied to other occasions
, it is within the scope of the present invention.
Claims (6)
1. a kind of powdered filler metal for compact diamond tool, EXD606 alloyed powder, 8-12 including 28-32 (weight) %
The LFP alloyed powder of (weight) %, the glass putty of 6-8 (weight) %, the nickel powder of 8-12 (weight) %, 0-2 (weight) % silicon powder, 0-
The rare earth element powder of 4 (weight) % and the copper powder of surplus；The EXD606 alloyed powder is for gas-atomised powders and by 28-35 (weight
Amount) copper powder of %, the nickel powder of 4-7 (weight) %, the cobalt powder of 4-8 (weight) %, the glass putty of 3-7 (weight) %, 1-3 (weight) %
Chromium powder, the rare earth alloy powder of 0.2-1 (weight) % and the iron powder composition of 53-58 (weight) %, and the EXD606 alloy
The diameter of powder is 10 μm or less；The LFP alloyed powder is for electrolytic powder and by the copper powder of 15-16 (weight) %, 3~4 (weights
Amount) glass putty of %, the nickel powder of 10~12 (weight) %, the cobalt powder of 1-3 (weight) % and surplus iron powder composition, the LFP
The diameter of alloyed powder is 5 μm or less.
2. the powdered filler metal according to claim 1 for compact diamond tool, it is characterised in that: the powdered filler metal
Glass putty, the 8- of the LFP alloyed powder of EXD606 alloyed powder, 8-10 (weight) % including 28-30 (weight) %, 6-8 (weight) %
The nickel powder of 12 (weight) %, the silicon powder of 1-2 (weight) %, the rare earth alloy powder of 0.2-1 (weight) % and surplus copper powder.
3. the powdered filler metal according to claim 1 for compact diamond tool, it is characterised in that: the rare earth element
One of powder selected from cerium powder, lanthanum powder, cerium copper alloy powder or lanthanum nickel alloy powder.
4. a kind of compact diamond tool, it is characterised in that: the sintering tool includes described in any item by claim 1-3
Diamond segment made of powdered filler metal and diamond particles sintering.
5. compact diamond tool according to claim 4, it is characterised in that: the diamond added in powdered filler metal it is dense
Degree is 0.6~0.8ct/cm3。
6. compact diamond tool according to claim 5, it is characterised in that: use granularity for 35/40,40/50 and 50/
Diamond particles made of 60 gradations.
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| CN201710456325.4A CN107363255B (en) | 2017-06-15 | 2017-06-15 | Powdered filler metal for compact diamond tool |
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| CN109531457B (en) * | 2018-12-29 | 2021-07-02 | 郑州机械研究所有限公司 | Powdered active brazing filler metal for diamond grinding tool |
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| CN105562825A (en) * | 2015-12-24 | 2016-05-11 | 中南大学 | Metallic-bond complicated-surface diamond saw blade and 3D printing and making process thereof |
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| US3258817A (en) * | 1962-11-15 | 1966-07-05 | Exxon Production Research Co | Method of preparing composite hard metal material with metallic binder |
| JPS556459A (en) * | 1978-06-29 | 1980-01-17 | Mitsui Mining & Smelting Co Ltd | Nickel base diamond sintered body |
| CN101168230A (en) * | 2006-10-27 | 2008-04-30 | 河南富耐克超硬材料有限公司 | Method for manufacturing ultra-hard composite blade |
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