CN107420048B - The equidistant shape positioning distribution superthin layer composite drill bit of diamond and its manufacture craft - Google Patents
The equidistant shape positioning distribution superthin layer composite drill bit of diamond and its manufacture craft Download PDFInfo
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- CN107420048B CN107420048B CN201710540812.9A CN201710540812A CN107420048B CN 107420048 B CN107420048 B CN 107420048B CN 201710540812 A CN201710540812 A CN 201710540812A CN 107420048 B CN107420048 B CN 107420048B
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- powder
- diamond
- superthin
- drill bit
- working lining
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- 239000010432 diamond Substances 0.000 title claims abstract description 67
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 66
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 238000009826 distribution Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000000843 powder Substances 0.000 claims abstract description 80
- 238000000926 separation method Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 20
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims abstract description 11
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 238000005245 sintering Methods 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010892 electric spark Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000010147 laser engraving Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000080 wetting agent Substances 0.000 claims description 4
- 238000002513 implantation Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 238000007731 hot pressing Methods 0.000 claims description 2
- 201000009240 nasopharyngitis Diseases 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 238000003763 carbonization Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 235000020610 powder formula Nutrition 0.000 claims 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000009472 formulation Methods 0.000 description 5
- 230000004913 activation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- 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
- B22F7/08—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 with one or more parts not made from powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/07—Alloys based on nickel or cobalt based on cobalt
-
- 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
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Composite Materials (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Powder Metallurgy (AREA)
- Earth Drilling (AREA)
Abstract
The equidistant shape positioning distribution superthin layer composite drill bit of diamond and its manufacture craft, the equidistant shape positioning of diamond of the present invention are distributed superthin layer composite drill bit and its manufacture craft, are combined into drill bit by carcass working lining superthin section and separation layer superthin section and bore tooth；Carcass working lining superthin section uses metal powder and tungsten-carbide powder for raw material, and separation layer superthin section uses graphite powder, carborundum powder, alumina powder and ceramic powder for raw material；Working lining superthin section cold moudling positions distributed architecture using equidistant shape, according to the diamond particles spacing dimension of design, by its heeling-in in carcass predetermined position；Cloth powder is vibrated using ultrasonic wave or other high-frequency shaking platforms in charging process, guarantees its thickness uniformity, obtains superthin section green compact through cold moudling；Superthin section green compact is assembled at tooth is bored, it is integral by intermediate frequency furnace hot pressed sintering to bore tooth and drilling bit steel body, machined that drill bit is made.The composite drill bit that the present invention obtains, work efficiency is high, the service life is long, low energy consumption when creeping into hard rock.
Description
Technical field
The present invention principally falls into field of machining, using PM technique, is positioned and is distributed using diamond, by super
Sound wave or other high-frequency vibration modes more particularly to the equidistant shape positioning distribution superthin layer composite drill bit of diamond and its production work
Skill.
Background technique
In conventional PCD drill production, there is a problem of wasting material, and tire metal powder and diamond dosage more
In body diamond random distribution, cause diamond that cannot play effect completely, in bit operation, exist drilling resistance it is big,
The problems such as energy consumption height and low efficiency, so that the using effect of diamond bit is limited, the using effect especially in hard rock,
Also counteract the development of diamond drilling technology.
Summary of the invention
The object of the present invention is to provide a kind of equidistant shape positioning distribution superthin layer composite drill bit of diamond and its manufacture crafts.
A kind of equidistant shape positioning distribution superthin layer composite drill bit of diamond, by ultra-thin with a thickness of the working lining of 0.1~1.0mm
Piece and the brill tooth that drill bit is combined into a thickness of 0.1~1.0mm separation layer superthin section；Working lining superthin section carcass uses metal powder
It is raw material with diamond, separation layer superthin section uses graphite powder, carborundum powder, alumina powder and ceramic powder for raw material；Working lining
Diamond particles in superthin section position distributed architecture using equidistant shape, and heeling-in is in carcass predetermined position；Superthin layer composite drill bit
It is synthesized by brill tooth and drilling bit steel body.
The diamond particles of superthin layer composite drill bit position distributed architecture in equidistant shape, i.e. are distributed around a diamond
There are several equidistant diamonds.The distance between diamond determines by drill bit size and working lining diamond concentration, generally
Between be divided into 0.05~3.0mm.
The manufacture craft of the equidistant shape positioning distribution superthin layer composite drill bit of diamond, comprising the following steps:
Step 1: mold and steel body prepare
According to bit size, superior alloy steel design and processing cold stamping die are selected, wherein steel pressure head is according to design requirement
Guarantee that diamond positions distributed architecture in equidistant shape, is processed using laser engraving method or electric spark method；Select high-intensitive high-purity
Highdensity graphite design and processing sintering mold；Select 45#Steel processes drilling bit steel body；
Step 2: carcass powder is mixed
Up-to-standard required metal powder, tungsten-carbide powder are weighed, the wetting that volume fraction is 30% to 80% is added
Agent is uniformly mixed, and obtains uniformly mixed working lining powder mixture；
Step 3: separation layer mixing
Up-to-standard graphite powder, carborundum powder, alumina powder, ceramic powder isolating layer material are weighed, volume fraction is added
It is uniformly mixed for 30% to 80% wetting agent, obtains uniformly mixed separation layer powder mixture；
Step 4: vibration cloth is die-filling
Uniformly mixed working lining powder is weighed, the cold pressing being placed on ultrasonic wave or other high-frequency shaking platforms is packed into
In mold, start ultrasonic wave or other high-frequency shaking platforms and vibrate 0.5~10 minute, vibration frequency be 800Hz extremely
100000Hz after assembling steel pressure head, moves to extrusion forming on press machine and obtains carcass working lining superthin section green compact；Weigh mixing
Uniform separation layer powder is fitted into cold stamping die, starts ultrasonic wave or other high-frequency shaking platforms vibrate 0.5~10 minute,
Vibration frequency is 800Hz to 100000Hz, then moves to extrusion forming on press machine and obtains separation layer superthin section green compact；
Step 5: diamond positioning distribution
The working lining superthin section green compact obtained using steel pressure head cold moudling, there are meet diamond to position in equidistant shape
The placement of distributed architecture is cheated, and working lining superthin section green compact is taken out from punching block, is implanted into diamond particles using mounting method is smeared
In hole, the working lining superthin section green compact containing diamond particles is made；
Step 6: powder metallurgic method manufactures.The working lining superthin section green compact and separation layer that are implanted into diamond particles is ultra-thin
Piece green compact, according to working lining superthin section green compact-separation layer superthin section green compact-working lining superthin section green compact-separation layer superthin section
The sequence of green compact-...-working lining superthin section green compact assembles, and prepares drilling bit steel body, is placed in intermediate frequency furnace, first passes through heating
Pressurization, temperature are stepped up to 900 DEG C to 980 DEG C, and pressure gradually adds to 25KN to 40KN, is then cooled to 700 DEG C to 790
DEG C, it is depressurized to 15KN to 25KN, is carried out heat-insulation pressure keeping 2 minutes to 8 minutes, hot-pressing process is completed；
Step 7: cooling and demolding
It is placed on the graphite jig component of intermediate frequency furnace, process to be sintered is taken out from graphite mo(u)ld after terminating and cooling down and obtains gold
The equidistant shape positioning distribution superthin layer composite drill bit blank of hard rock；
Step 8: machining
By the equidistant shape positioning distribution superthin layer composite drill bit blank of diamond, screw thread processing, water are carried out according to related standard
The processing of saliva slot, that is, it is stand-by to be made drill bit.
Carcass powder described in step 2 formula in containing cobalt powder, nickel powder, iron powder, titanium valve, chromium powder, manganese powder, copper powder, glass putty,
Tungsten carbide powder；Wherein: cobalt powder, nickel powder, iron powder, manganese powder, titanium valve and chromium powder respectively account for the 2%~70% of gross mass；Copper powder and glass putty
Respectively account for the 3%~50% of gross mass；Tungsten carbide powder accounts for the 0%~50% of gross mass；Powder diameter used is 0.075mm or less.
Graphitiferous powder, carborundum powder, alumina powder, ceramic powder in separation layer powder formulation described in step 3；Wherein stone
Ink powder accounts for the 5%~90% of gross mass, and partial size is 0.1mm or less；Carborundum powder, alumina powder, ceramic powder respectively account for gross mass
2%~50%, partial size is 0.1mm or less.
Vibration cloth described in step 4 is die-filling, and steel alloy grinding tool is placed on ultrasonic wave when cloth powder is die-filling or other are high
Vibrated 1~8 minute on frequency shaking platform, vibration frequency be 20000Hz to 80000Hz, shaking platform using ultrasonic wave or its
He provides exciting force by high-frequency vibration source.
The equidistant shape positioning distribution of diamond described in step 5, the diamond volume concentration used is 5%~50%, grain
Diameter is 0.045~0.60mm.Diamond particles plant the pre-determined bit in ultra-thin working lining carcass by equidistant shape positioning distributed architecture
It sets, predetermined position is the steel pressure head using laser engraving method or electric spark method processing cold moudling, with the bumps on steel pressure head surface
Position is cheated to determine predetermined position, the ultra-thin working lining green compact pits of cold moudling are to use at diamond particles implantation
It smears mounting method diamond particles are placed in hole.
The equidistant shape positioning distribution superthin layer composite drill bit of diamond of the present invention is mainly characterized by: using ultrasonic wave or its
His high-frequency vibration cloth powder means are conducive to the homogenization of powder；Diamond implantation position abandons conventional random distribution form, and
The effect of executing equidistant shape location structure, having given full play to diamond；Using powder metallurgy pressure sintering in temperature of the present invention
Superthin layer composite drill bit is made under degree and pressure process, can reach the performance indicator of superthin layer composite drill bit, drill bit is by several thickness
The working lining superthin section and separation layer superthin section for spending 0.1~1.0mm are combined, and are welded on brill through sintering or method for laser welding
Saw superthin layer composite drill bit is made in head steel body, hence it is evident that improve the working efficiency of drill bit.
Detailed description of the invention
Fig. 1 is that the equidistant shape of diamond of the invention positions distribution schematic diagram.
Specific embodiment
Embodiment 1
The equidistant shape positioning distribution superthin layer composite drill bit of diamond, outer diameter/internal diameter are Φ 76/49mm, bit matrix work
The ultra-thin chip size of layer: length × height × thickness=22/12mm × 12mm × 0.3mm；The ultra-thin chip size of separation layer: long × high × thick=
22/12mm × 12mm × 0.2mm, single locking nub contain 27 layers of working lining superthin section and 26 layers of separation layer superthin section, bore tooth composition saw
Segment block size is length × height × thickness=22/12mm × 12mm × 13.5mm.
Working lining superthin section carcass metal formulations mass ratio: cobalt powder -60%, nickel powder -5%, titanium valve -2%, chromium powder -
3%, copper powder -20%, glass putty -5%, tungsten carbide powder -5%, powder size are 325 mesh (45 microns) with thin；Diamond volume
Concentration is 15%, and granularity is 35/60 mesh (425-250 microns).
Separation layer superthin section power formulations mass ratio: graphite powder -70%, carborundum powder -10%, alumina powder -10%,
Ceramic powder -10%, particle diameters are 325 mesh (45 microns) with thin.
Its fabrication processing are as follows:
1. Alloy-steel mold, graphite jig, drilling bit steel body are processed.
2. working lining superthin section carcass powder and diamond mixing；Separation layer powder mixing, the profit that volume fraction is 55%
Humectant.
3. the carcass powder mixed is packed into Alloy-steel mold, it is placed on ultrasonic activation platform and vibrates 1 minute, shakes
Dynamic frequency is 30000Hz；Alloy-steel mold after vibration uniformly is moved on press machine and is pressurizeed, green compact is taken out, smears and pastes gold
Working lining superthin section green compact is spare, and diamond is equidistant in obtaining in the corresponding hole for positioning distributed architecture in equidistant shape for hard rock particle
Shape positioning distribution is as shown in Figure 1.
4. the separation layer powder mixed is packed into Alloy-steel mold, it is placed on vibration ultrasonic activation platform and vibrates 1 point
Clock, vibration frequency 30000Hz；Alloy-steel mold after vibration uniformly is moved on press machine and is pressurizeed, obtains and takes out isolation
Layer superthin section green compact is spare.
5. being assembled in graphite mo(u)ld according to 27 working lining superthin section green compacts and 26 separation layer superthin section green compact space crossings
In tool, green compact will be installed and prepare the graphite jig of steel body it is put into intermediate frequency furnace and heats pressure sintering, temperature is heated to 970 DEG C,
It is forced into 35KN, then carries out heat-insulation pressure keeping work, holding temperature is 790 DEG C, dwell pressure 25KN, and soaking time is 5 points
Clock reaches thermal requirements, and demoulding is taken out after going with furnace is cold.
6. the drill bit blank that sintering is completed, is machined in the equipment such as lathe, processes screw thread, the mouth of a river, water
After slot etc., cleaning packing processes are stand-by.
Embodiment 2
The equidistant shape positioning distribution superthin layer composite drill bit of diamond, outer diameter/internal diameter is Φ 101.6/84mm, bit matrix work
Make the ultra-thin chip size of layer: length × height × thickness=25/19.5mm × 14mm × 0.4mm；The ultra-thin chip size of separation layer: long × high × thick
=29/19.5mm × 14mm × 0.3mm, single locking nub contain 13 layers of working lining superthin section and 12 layers of separation layer superthin section, bore tooth group
At saw blade locking nub having a size of length × height × thickness=25/19.5mm × 14mm × 8.5mm.
Working lining superthin section carcass metal formulations mass ratio: cobalt powder -50%, nickel powder -10%, manganese powder -3%, copper powder -
17%, glass putty -5%, tungsten carbide powder -15%, powder size are 325 mesh (45 microns) with thin；Diamond volume concentration is
18%, granularity is 30/50 mesh (550-270 microns).
Separation layer superthin section power formulations mass ratio: graphite powder -85%, carborundum powder -5%, alumina powder -5%, pottery
Porcelain powder -5%, particle diameters are 325 mesh (45 microns) with thin.
Its fabrication processing are as follows:
1. Alloy-steel mold, graphite jig, drilling bit steel body are processed.
2. working lining superthin section carcass powder mixing；Separation layer powder mixing, the wetting agent that volume fraction is 55%.
3. the carcass powder mixed is packed into Alloy-steel mold, it is placed on ultrasonic activation platform and vibrates 0.5 minute,
Vibration frequency is 25000Hz；Alloy-steel mold after vibration uniformly is moved on press machine and is pressurizeed, green compact is taken out, smears and pastes
It is spare to obtain working lining superthin section green compact in the corresponding hole in equidistant shape positioning distributed architecture for diamond particles.
4. the separation layer powder mixed is packed into Alloy-steel mold, it is placed on ultrasonic activation platform and vibrates 0.5 point
Clock, vibration frequency 25000Hz；Alloy-steel mold after vibration uniformly is moved on press machine and is pressurizeed, obtains and takes out isolation
Layer superthin section green compact is spare.
5. being assembled in graphite mo(u)ld according to 13 working lining superthin section green compacts and 12 separation layer superthin section green compact space crossings
In tool, green compact will be installed and prepare the graphite jig of steel body it is put into intermediate frequency furnace and heats pressure sintering, temperature is heated to 970 DEG C,
It is forced into 35KN, then carries out heat-insulation pressure keeping work, holding temperature is 790 DEG C, dwell pressure 25KN, and soaking time is 4 points
Clock reaches thermal requirements, and demoulding is taken out after going with furnace is cold.
6. the drill bit blank that sintering is completed, is machined in the equipment such as lathe, processes screw thread, the mouth of a river, water
It is stand-by after cleaning packing processes after slot etc..
Claims (5)
1. the manufacture craft of the equidistant shape positioning distribution superthin layer composite drill bit of diamond, by the working lining with a thickness of 0.1~1.0mm
Superthin section and the brill tooth that drill bit is combined into a thickness of 0.1~1.0mm separation layer superthin section；Working lining superthin section carcass uses metal
Powder and diamond are raw material, and separation layer superthin section uses graphite powder, carborundum powder, alumina powder and ceramic powder for raw material；Work
The diamond particles made in layer superthin section position distributed architecture using equidistant shape, i.e. are distributed with several around a diamond
Equidistant diamond, heeling-in is in carcass predetermined position；Superthin layer composite drill bit is synthesized by brill tooth and drilling bit steel body, and feature exists
In the following steps are included:
Step 1: mold and steel body prepare
According to bit size, superior alloy steel design and processing cold stamping die are selected, wherein steel pressure head guarantees according to design requirement
Diamond positions distributed architecture in equidistant shape, is processed using laser engraving method or electric spark method；Select high-intensitive high-purity highly dense
The graphite of degree designs and processing sintering mold；Select 45#Steel processes drilling bit steel body；
Step 2: carcass powder mixes
Up-to-standard required metal powder and tungsten-carbide powder are weighed, it is mixed that the wetting agent that volume fraction is 30% to 80% is added
It closes uniformly, obtains uniformly mixed working lining powder mixture；
Step 3: separation layer mixing
Up-to-standard graphite powder, carborundum powder, alumina powder and ceramic powder isolating layer material are weighed, volume fraction, which is added, is
30% to 80% wetting agent is uniformly mixed, and obtains uniformly mixed separation layer powder mixture；
Step 4: vibration cloth is die-filling
Weigh uniformly mixed working lining powder mixture, be packed into be placed on it is cold on ultrasonic wave or other high-frequency shaking platforms
In compression mould, start ultrasonic wave or other high-frequency shaking platforms and vibrate 0.5~10 minute, vibration frequency be 800Hz extremely
100000Hz after assembling steel pressure head, moves to extrusion forming on press machine and obtains carcass working lining superthin section green compact；Weigh mixing
Uniform separation layer powder mixture is fitted into cold stamping die, start ultrasonic wave or other high-frequency shaking platforms vibrate 0.5~
10 minutes, vibration frequency was 800Hz to 100000Hz, then moves to extrusion forming on press machine and obtains separation layer superthin section pressure
Base；
Step 5: diamond positioning distribution
The working lining superthin section green compact obtained using steel pressure head cold moudling, there are meet diamond in the positioning distribution of equidistant shape
The placement of structure is cheated, and working lining superthin section green compact is taken out from punching block, diamond particles are implanted into hole using mounting method is smeared,
The working lining superthin section green compact containing diamond particles is made；
Step 6: powder metallurgic method manufactures
It will be implanted into the working lining superthin section green compact and separation layer superthin section green compact of diamond particles, according to working lining superthin section pressure
Base-separation layer superthin section green compact-working lining superthin section green compact-separation layer superthin section green compact-...-working lining superthin section
The sequence of green compact assembles, and prepares drilling bit steel body, is placed in intermediate frequency furnace, first passes through temperature-pressure, temperature is stepped up to 900 DEG C
To 980 DEG C, pressure gradually adds to 25KN to 40KN, is then cooled to 700 DEG C to 790 DEG C, is depressurized to 15KN to 25KN, is protected
Hot-pressing process is completed in warm pressure maintaining 2 minutes to 8 minutes；
Step 7: cooling and demolding
It is placed on the graphite jig component of intermediate frequency furnace, process to be sintered is taken out from graphite mo(u)ld after terminating and cooling down and obtains diamond
Equidistant shape positioning distribution superthin layer composite drill bit blank；
Step 8: machining
By the equidistant shape positioning distribution superthin layer composite drill bit blank of diamond, screw thread processing, mouth of a river water are carried out according to related standard
Slot processing, that is, be made superthin layer composite drill bit.
2. the manufacture craft of the equidistant shape positioning distribution superthin layer composite drill bit of diamond according to claim 1, feature
Be: carcass powder formula described in step 2 is cobalt powder, nickel powder, iron powder, titanium valve, chromium powder, manganese powder, copper powder, glass putty and carbonization
Tungsten powder；Wherein: cobalt powder, nickel powder, iron powder, manganese powder, titanium valve and chromium powder respectively account for the 2%~70% of gross mass；Copper powder and glass putty respectively account for
The 3%~50% of gross mass；Tungsten carbide powder accounts for the 0%~50% of gross mass；Powder diameter used is 0.075mm or less.
3. the manufacture craft of the equidistant shape positioning distribution superthin layer composite drill bit of diamond according to claim 1, feature
Be: separation layer mixture recipes described in step 3 are graphite powder, carborundum powder, alumina powder and ceramic powder；Wherein graphite powder
The 5%~90% of gross mass is accounted for, partial size is 0.1mm or less；Carborundum powder, alumina powder, ceramic powder respectively account for gross mass 2%~
50%, partial size is 0.1mm or less.
4. the manufacture craft of the equidistant shape positioning distribution superthin layer composite drill bit of diamond according to claim 1, feature
Be: vibration cloth described in step 4 is die-filling, and steel alloy grinding tool is placed on ultrasonic wave or other high frequencies when cloth powder is die-filling
Vibrated 1~8 minute on rate shaking platform, vibration frequency be 20000Hz to 80000Hz, shaking platform using ultrasonic wave or other
High-frequency vibration source provides exciting force.
5. the manufacture craft of the equidistant shape positioning distribution superthin layer composite drill bit of diamond according to claim 1, feature
Be: the positioning distribution of diamond described in step 5, the diamond volume concentration used are 5%~50%, partial size 0.045
~0.60mm, diamond particles plant the predetermined position in ultra-thin working lining carcass, pre-determined bit by equidistant shape positioning distributed architecture
Setting is the steel pressure head that cold moudling is processed using laser engraving method or electric spark method, with the concave-convex hole position on steel pressure head surface come really
Determine predetermined position, the ultra-thin working lining green compact pits of cold moudling are at diamond particles implantation, using smearing mounting method
Diamond particles are placed in hole.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376234A (en) * | 2007-08-28 | 2009-03-04 | 侯家祥 | Ordered arrangement method for abrading agent granule on abrading tool and abrading tool |
| CN203334966U (en) * | 2013-05-21 | 2013-12-11 | 金川集团股份有限公司 | Layered die block of diamond bit and bit body of diamond bit |
| CN205823170U (en) * | 2016-07-01 | 2016-12-21 | 湖北大好工具有限公司 | A kind of diamond compact bit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130081882A1 (en) * | 2011-09-30 | 2013-04-04 | Diamond Innovations, Inc. | Method of characterizing a material using three dimensional reconstruction of spatially referenced characteristics and use of such information |
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2017
- 2017-07-05 CN CN201710540812.9A patent/CN107420048B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376234A (en) * | 2007-08-28 | 2009-03-04 | 侯家祥 | Ordered arrangement method for abrading agent granule on abrading tool and abrading tool |
| CN203334966U (en) * | 2013-05-21 | 2013-12-11 | 金川集团股份有限公司 | Layered die block of diamond bit and bit body of diamond bit |
| CN205823170U (en) * | 2016-07-01 | 2016-12-21 | 湖北大好工具有限公司 | A kind of diamond compact bit |
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