CN106761429A - A kind of diamond drill machine tooth - Google Patents
A kind of diamond drill machine tooth Download PDFInfo
- Publication number
- CN106761429A CN106761429A CN201611115909.7A CN201611115909A CN106761429A CN 106761429 A CN106761429 A CN 106761429A CN 201611115909 A CN201611115909 A CN 201611115909A CN 106761429 A CN106761429 A CN 106761429A
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- Prior art keywords
- diamond
- polycrystalline diamond
- tooth
- drill machine
- machine tooth
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- Pending
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 141
- 239000010432 diamond Substances 0.000 title claims abstract description 141
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 239000011159 matrix material Substances 0.000 claims abstract description 16
- 238000005245 sintering Methods 0.000 claims abstract description 10
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 9
- 238000012805 post-processing Methods 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 3
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 claims description 2
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 claims description 2
- 229910003472 fullerene Inorganic materials 0.000 claims description 2
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- 239000002113 nanodiamond Substances 0.000 claims description 2
- 229910003470 tongbaite Inorganic materials 0.000 claims description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 2
- 229910003481 amorphous carbon Inorganic materials 0.000 claims 1
- 229910021397 glassy carbon Inorganic materials 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 31
- 239000011230 binding agent Substances 0.000 abstract description 18
- 230000007812 deficiency Effects 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 description 10
- 239000000956 alloy Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 241001270131 Agaricus moelleri Species 0.000 description 5
- 230000001464 adherent effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052580 B4C Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010959 commercial synthesis reaction Methods 0.000 description 1
- 230000009918 complex formation Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 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
- 238000005087 graphitization Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000758 substrate Substances 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
- E21B10/56—Button-type inserts
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Present invention aim at a kind of diamond drill machine tooth is provided, to overcome existing polycrystalline diamond drilling tooth（PDC）Deficiency in for oil gas drilling.Diamond drill machine tooth of the present invention is made up of polycrystalline diamond overall processing or compound post-processing is connected with matrix split by polycrystalline diamond and forms, 1wt% of the non-carbon components that its polycrystalline diamond working lining is contained within less than polycrystalline diamond working lining gross mass；The polycrystalline diamond be using high-purity carbon as raw material, under high-temperature and high-pressure conditions sinter synthesis, high-temperature and high-pressure conditions scope be 8~25GPa, 1200~3000 DEG C, its optimize sintering Temperature-pressure Conditions be about 10~18GPa, 1500~2500 DEG C.The polycrystalline diamond churn drill tooth that the present invention is provided has hardness higher, wearability, heat endurance, impact resistance compared with the traditional PDC for adding binding agent to obtain during conventional synthesis, service life in oil gas drilling increased 1.0~3.0 times than the service life of traditional PDC, and disposable drilling subterranean strata is up to more than 2500 meters.
Description
Technical field
The invention belongs to complex formation, high rigidity rock stratum boring means technical field, and in particular to oil-gas exploration and mining
Use diamond drill machine tooth.
Background technology
It is poly-（It is many）Diamond bores tooth（Polycrystalline Diamond Cutter, PDC）It is oil-gas geology probing
Key working part, oil gas drill bit generally using PDC to rock carry out cutting with scraping creep into, thus, the wearability of PDC,
The performance such as heat endurance and impact resistance be influence drilling efficiency, cost, the key element of security, particularly 2000 meters with
In upper deep drilling exploration, the performance requirements to PDC is then tightened up.At present, oil gas drilling is prepared with the research and development of high-performance PDC
Through as a system engineering for high technology content, correlation technique has also turned into one of core technology of oil-gas geology probing.
PDC it is general by the polycrystalline diamond layer as working lining and WC hard alloy substrates 5~80,000 atmospheric pressure,
It is sintered combined under 1400 DEG C or so of high-temperature and high-pressure conditions to form.However, commercial synthesis gather at present（It is many）Diamond
（Polycrystalline Diamond,PCD）The non-carbon components of 1wt% is generally added beyond in materials process as binding agent
Or sintering aid, such as：The metal materials such as cobalt, or the nonmetallic materials such as carborundum, boron carbide, titanium carbide, use the binding agent can be with
The bonding of D-D keys between promotion diamond, so that relative reduction sintering synthesis is poly-（It is many）HTHP bar during diamond
Part, lifts the success rate of diamond synthesis.But, the binding agent remained in PDC after synthesis can cause its wearability, hardness and heat
Stability etc. is relatively low.The physics and chemistry reason of above-mentioned difference is：Non-carbon components binding agent in conventional polysilicon diamond
Such as cobalt, its thermal coefficient of expansion and coefficient of elasticity are big with diamond difference, during oil gas drilling, with continual brill
Enter, because friction produces amount of heat between drill bit and drilling well so that the heat that can not be distributed in time in deep-well is cumulative, from
And make diamond drill machine tooth expanded by heating, wherein the binding agent for remaining also occurs thermal expansion, and have not between binding agent and diamond
Same thermal coefficient of expansion, this can cause diamond drill machine tooth to be squeezed by the same binding agent that thermal expansion occurs while thermal expansion
Pressure, so as to crack, causes its reduced lifetime；On the other hand, binding agent has the graphitization of promotion diamond under high temperature, influence
Its performance.Therefore, business probing polycrystalline diamond abrasive compact is generally needed by either physically or chemically removing contained by inside
Part non-carbon components binding agent or sintering aid, to improve its performance.But because binding agent is to be scattered to be distributed in diamond crystal boundary
Place, is on the one hand difficult to remove completely, on the other hand, even if the work of part removal binding agent also considerably increases diamond drill machine tooth
Cost.
The content of the invention
Present invention aim at a kind of diamond drill machine tooth is provided, to overcome existing polycrystalline diamond drilling tooth（PDC）It is being used for
Deficiency in oil gas drilling.The diamond drill machine tooth is made up or by polycrystalline diamond and matrix point of polycrystalline diamond overall processing
The compound post-processing of body connection is formed, the diamond drill machine tooth generally column such as cylinder, prism, thereon the bottom of polycrystalline diamond
It is the connection end being connected with drill bit or matrix, top is the working face of polycrystalline diamond working lining；Matrix and the polycrystalline diamond
The one side of stone connection is the joint face being engaged with the shape of polycrystalline diamond connection end, and it is non-that the polycrystalline diamond is contained within
1wt% of the carbon component less than polycrystalline diamond working lining gross mass.
It is of the present invention be made diamond drill machine tooth for the compound post-processing of overall processing or split polycrystalline diamond be
Using high-purity carbon as raw material, synthesis is sintered under high-temperature and high-pressure conditions.Polycrystalline diamond is connected compound with matrix split
Mode be that the polycrystalline diamond of HTHP sintering synthesis is laminated on the joint face of matrix, sintered by HTHP, true
Missing solder connects, laser welding, microwave joining or mechanical means are allowed to be bonded together；Can also be will be used for synthesised polycrystalline
The raw material of diamond are evenly distributed on the joint face of matrix, during HTHP sintering synthesised polycrystalline diamond layer
It is allowed to be bonded together.High-purity carbon source materials are graphite, Graphene, fullerene, nano-onions carbon, C60, micron order diamond, receive
One or more in meter level diamond, during the main component of matrix can be tungsten carbide, titanium carbide, carborundum, chromium carbide
One or more.High-temperature and high-pressure conditions scope be 8~25GPa, 1200~3000 DEG C, its optimize sintering Temperature-pressure Conditions be about 10
~18GPa, 1500~2500 DEG C.The HTHP of the polycrystalline diamond for being applied to oil gas drilling in the present invention is sintered in being based on
Carried out in two grade of six-eight type large cavity Static pressure device of cubic hinge press, current business probing polycrystalline diamond abrasive compact
HTHP sintering is generally carried out using the one-level pressure chamber of cubic hinge press or belt type press.
The polycrystalline diamond churn drill tooth crest working face that the present invention is provided can be processed into plane, arc with the shape of connection end
It is that flat-top tooth comes out earliest that face, the conical surface, corrugated surface or great-wall shaped male and fomale(M＆F), wherein planar shaped working face bore tooth, its application
Most extensively, diamond drill machine tooth is made the sharper keen shapes such as spherical, taper, tool shape, spoon shape, can reaches and more effectively grind
Mill, planing and impact effect, while extending the service life for boring tooth, there is important practical significance.
Diamond drill machine tooth of the present invention, is that will directly be processed or and base in the polycrystalline diamond of HTHP sintering synthesis
The compound post-processing of body connection turns into standard-sized brill tooth, and the crystallite dimension of its polycrystalline diamond part is several nanometers to hundreds of micro-
Rice, intercrystalline has strong and many diamond-diamond（D-D）Bonding, its wearability, hardness, heat endurance and impact resistance
Etc. the PDC that performance is all made far above the use binding agent for using at present as catalyst.
Oil gas drill bit generally comprises drill body and the diamond drill machine tooth being connected on drill body, by gold of the present invention
Hard rock bores tooth by welding or mechanical means are connected to drill body so as to be made drill bit, and drill body corona shape can be with
It is fishtail, shallow taper, short parabola shaped or parabola shaped.
The polycrystalline diamond churn drill tooth that the present invention is provided is with traditional PDC compared with hardness higher, wearability, thermally-stabilised
Property, impact resistance, service life of the polycrystalline diamond churn drill tooth of the present invention in oil gas drilling is more viscous than being added in building-up process
Traditional polycrystalline diamond drilling tooth that knot agent is obtained（PDC）Life-span increased more than 1 times, disposable drilling subterranean strata is reachable
More than 2500 meters.
Brief description of the drawings
Fig. 1 is traditional polycrystalline diamond drilling tooth（PDC）The XRD material phase analysis collection of illustrative plates of diamond working layers part；
The XRD material phase analysis collection of illustrative plates of the polycrystalline diamond churn drill tooth diamond working layers part that Fig. 2 is provided for the present invention；
Fig. 3 is the flat-top tooth schematic diagram being integrally formed by polycrystalline diamond；
Fig. 4 is by polycrystalline diamond and the compounded flat-top tooth schematic diagram of hard alloy；
Fig. 5 is that composite teeth working face is great-wall shaped male and fomale(M＆F) schematic diagram；
Fig. 6 is that composite teeth working face is arcwall face schematic diagram；
Fig. 7 is that diamond layer and hard alloy layer joint face are great-wall shaped male and fomale(M＆F) schematic diagram in compound flat-top tooth；
Fig. 8 is polycrystalline diamond and the compounded cylinder taper composite teeth schematic diagram of hard alloy；
Embodiment
Embodiment 1
As shown in Figure 3,4, diamond drill machine tooth shown in Fig. 3 is made up of the overall processing of polycrystalline diamond 1, diamond drill machine tooth shown in Fig. 4
It is to be sintered under 5~10GPa, 1300~1500 DEG C of high-temperature and high-pressure conditions again by polycrystalline diamond layer 1 and WC hard alloy layers 2
Conjunction is formed, and polycrystalline diamond 1 is, in 18~20GPa, diamond to be translates directly under conditions of 1700~2000 DEG C by by graphite
And it is sintered combined form, both bore teeth polycrystalline diamond working linings be contained within less than 1wt% non-adherent agent non-carbon into
Point, tooth generally cylinder flat-top tooth is bored, top diamond fraction is working lining.Both bore the Vickers hardness of tooth diamond fraction
In more than 100GPa, its service life in oil gas drilling is than the polycrystalline diamond drilling that adds binding agent to obtain in building-up process
Tooth（PDC）Life-span increased more than 1 times, disposable drilling subterranean strata is up to more than 2500 meters.
Embodiment 2
Diamond drill machine tooth as shown in Figure 5 is composited by microwave joining with WC hard alloy layers 2 by polycrystalline diamond layer 1,
Polycrystalline diamond 1 be by by micron order diamond powder in 15~20GPa, it is sintered combined under conditions of 1800~2200 DEG C and
Into this polycrystalline diamond working lining 1 for boring tooth is contained within the non-carbon components of the non-adherent agent less than 1wt%, bores tooth and generally justifies
Column, the working face of polycrystalline diamond layer 1 is great-wall shaped male and fomale(M＆F) thereon.This Vickers hardness for boring tooth diamond fraction exists
More than 100GPa, its service life in oil gas drilling is than adding the polycrystalline diamond drilling tooth that obtains of binding agent in building-up process
（PDC）Life-span increased more than 1.5 times, disposable drilling subterranean strata is up to more than 2550 meters.
Embodiment 3
Diamond drill machine tooth as shown in Figure 6 is composited by laser welding with WC hard alloy layers 2 by polycrystalline diamond layer 1,
Polycrystalline diamond 1 be by by micron order diamond powder in 21~23GPa, it is sintered combined under conditions of 2500~3000 DEG C and
Into this polycrystalline diamond working lining 1 for boring tooth is contained within the non-carbon components of the non-adherent agent less than 1wt%, bores tooth and generally justifies
Column, the working face of polycrystalline diamond layer 1 is arcwall face thereon.This service life ratio for boring tooth in oil gas drilling synthesized
The polycrystalline diamond drilling tooth for adding binding agent to obtain in journey（PDC）Life-span increased more than 1.5 times, disposable drilling underground rock
Layer is up to more than 2600 meters.
Embodiment 4
Diamond drill machine tooth as shown in Figure 7 is composited by being mechanically fixed with WC hard alloy layers 2 by polycrystalline diamond layer 1,
Polycrystalline diamond 1 be by by nano-diamond powder in 15~18GPa, it is sintered combined under conditions of 2500~2800 DEG C and
Into this polycrystalline diamond working lining 1 for boring tooth is contained within the non-carbon components of the non-adherent agent less than 1wt%, bores tooth and generally justifies
Column, the connection end being connected with WC hard alloy layers of polycrystalline diamond layer 1 is great-wall shaped male and fomale(M＆F) thereon.This brill tooth Buddha's warrior attendant
The Vickers hardness of stone part is obtained in more than 100GPa, its service life in oil gas drilling than adding binding agent in building-up process
The polycrystalline diamond drilling tooth for arriving（PDC）Life-span increased more than 1.5 times, disposable drilling subterranean strata up to 2700 meters with
On.
Embodiment 5
Diamond drill machine tooth as shown in Figure 8 is composited by being mechanically fixed with WC hard alloy layers 2 by polycrystalline diamond layer 1,
Polycrystalline diamond 1 be by by the mixture of micron diamond powder and nanocrystalline diamond powder in 18~20GPa, 2800~
Sintered combined under conditions of 3000 DEG C to form, this polycrystalline diamond working lining 1 for boring tooth is contained within the non-adherent less than 1wt%
The non-carbon components of agent, bores tooth generally cylinder taper.It is this bore tooth diamond fraction Vickers hardness in more than 100GPa, its
Service life in oil gas drilling is than the polycrystalline diamond drilling tooth that adds binding agent to obtain in building-up process（PDC）Life-span increase
More than 1.5 times, disposable drilling subterranean strata is up to more than 2700 meters.
Claims (12)
1. a kind of diamond drill machine tooth, it is characterised in that：The diamond drill machine tooth is made up or by many of polycrystalline diamond overall processing
Diamond is connected compound post-processing with matrix split and forms, the diamond drill machine tooth generally column, thereon polycrystalline diamond
Bottom be the connection end being connected with drill bit or matrix, top is the working face of polycrystalline diamond working lining；Described matrix and institute
The one side for stating polycrystalline diamond connection is the joint face being engaged with the shape of polycrystalline diamond connection end, the polycrystalline diamond
1wt% of the non-carbon components being contained within less than polycrystalline diamond working lining gross mass.
2. a kind of diamond drill machine tooth as claimed in claim 1, it is characterised in that：The polycrystalline diamond is closed using high-purity carbon
Into.
3. a kind of diamond drill machine tooth as described in claim 2 is any, it is characterised in that：The high-purity carbon be graphite, Graphene,
Fullerene, amorphous carbon, vitreous carbon, nano-onions carbon, C60, micron order diamond, one or more in nano-diamond.
4. a kind of diamond drill machine tooth as described in any in claims 1 to 3, it is characterised in that：The polycrystalline diamond is 8
Sintered under~25GPa, 1200~3000 DEG C of high-temperature and high-pressure conditions.
5. a kind of diamond drill machine tooth as claimed in claim 1, it is characterised in that：The polycrystalline diamond is connected with matrix split
Compound mode is that the polycrystalline diamond of HTHP sintering synthesis is laminated on the joint face of matrix, is burnt by HTHP
Knot, vacuum welding, laser welding, microwave joining or mechanical means are allowed to be bonded together.
6. a kind of diamond drill machine tooth as claimed in claim 1, it is characterised in that：The polycrystalline diamond is not connected with matrix point
Compound mode is the joint face that matrix will be evenly distributed on for the raw material of synthesised polycrystalline diamond, is burnt in HTHP
It is allowed to be bonded together during being combined into polycrystalline diamond layer.
7. a kind of diamond drill machine tooth as described in any in claims 1 to 3 or 5 to 6, it is characterised in that：Described matrix into
Point include one or more in tungsten carbide, titanium carbide, carborundum, chromium carbide.
8. a kind of diamond drill machine tooth as described in any in claims 1 to 3 or 5 to 6, it is characterised in that：The polycrystalline diamond
Stone top work surface is shaped as plane, arcwall face, taper surface, corrugated surface or great-wall shaped male and fomale(M＆F).
9. a kind of diamond drill machine tooth as described in any in claims 1 to 3 or 5 to 6, it is characterised in that：The polycrystalline diamond
Stone connection end is shaped as plane, arcwall face, taper surface, corrugated surface or great-wall shaped male and fomale(M＆F).
10. a kind of drill bit, including drill body and the diamond drill machine tooth being connected on drill body, it is characterised in that：The company
At least one is diamond drill machine any one of the claims 1-9 to be connected on diamond drill machine tooth on drill body
Tooth.
A kind of 11. drill bits as claimed in claim 10, it is characterised in that：The connection side of the diamond drill machine tooth and drill body
Formula is welding or mechanical means.
A kind of 12. drill bit as described in any in claim 10 or 11, it is characterised in that：The drill body corona shape is
It is fishtail, shallow taper, short parabola shaped or parabola shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115909.7A CN106761429A (en) | 2016-12-07 | 2016-12-07 | A kind of diamond drill machine tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115909.7A CN106761429A (en) | 2016-12-07 | 2016-12-07 | A kind of diamond drill machine tooth |
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| CN106761429A true CN106761429A (en) | 2017-05-31 |
Family
ID=58877169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611115909.7A Pending CN106761429A (en) | 2016-12-07 | 2016-12-07 | A kind of diamond drill machine tooth |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778040A (en) * | 2019-04-04 | 2019-05-21 | 吉林大学 | A kind of graphene enhancing prealloy base diamond composite material and preparation method |
| CN110227822A (en) * | 2018-03-05 | 2019-09-13 | 姜文辉 | Polycrystalline diamond, composite polycrystal-diamond and the preparation method of nanostructure-containing |
| CN111233476A (en) * | 2020-01-17 | 2020-06-05 | 成都东为科技有限公司 | Binder-free polycrystalline diamond material and preparation method thereof |
| CN111548165A (en) * | 2020-06-09 | 2020-08-18 | 欧阳晓平 | Polycrystalline SiC-diamond double-layer composite material and preparation method thereof |
| CN111592360A (en) * | 2020-06-09 | 2020-08-28 | 欧阳晓平 | Polycrystal B4C-diamond double-layer composite material and preparation method thereof |
| CN112746814A (en) * | 2020-12-22 | 2021-05-04 | 吉林大学 | High-temperature-resistant wear-resistant polycrystalline diamond compact and preparation method thereof |
| CN115572878A (en) * | 2022-09-30 | 2023-01-06 | 蒋孟瑶 | Hard alloy material and preparation method and application thereof |
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