CN101608533B - Drill bit impregnated with diamond film and manufacturing method thereof - Google Patents
Drill bit impregnated with diamond film and manufacturing method thereof Download PDFInfo
- Publication number
- CN101608533B CN101608533B CN200910067292XA CN200910067292A CN101608533B CN 101608533 B CN101608533 B CN 101608533B CN 200910067292X A CN200910067292X A CN 200910067292XA CN 200910067292 A CN200910067292 A CN 200910067292A CN 101608533 B CN101608533 B CN 101608533B
- Authority
- CN
- China
- Prior art keywords
- diamond film
- drill bit
- diamond
- impregnated
- working lining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The invention relates to a drill bit impregnated with a diamond film and a manufacturing method thereof, belonging to the field of mechanical processing. The drill bit is formed by a steel body (1) and a working layer (2), wherein the working layer (2) comprises the chemical vapor phase deposition diamond film (4) and hard matrix material (3). The diamond film (4) is distributed in the working layer (2) according to the required form. Molding ways of the drill bit comprise one-step forming and mosaic block type two-step forming. The one-step forming relates to the sintering type hot-press diamond drill bit, and the mosaic block type two-step forming relates to the drill bit formed by firstly sintering impregnated diamond segments and then welding the sintering impregnated diamond segments on the milled steel body. The drill bit can enhance abrasive resistance, reduces cutting adhesion, ensures the roughness and effective exposure of the bottom surface of the drill bit, and has effective gauge protection, thus improving the cutting efficiency and prolonging the service life of the tool. Compared with the common diamond drill bit, the drill bit impregnated with the diamond film has the characteristics of long service life, high drilling efficiency, long working distance, low energy consumption, strong anti-sticking rock dust capacity, etc.
Description
Technical field:
The invention belongs to field of machining, relate to a kind of geology drill bit that is used for exploring, exploiting the energy, drill bit is made with impregnated chemical vapor deposition (CVD) diamond film.
Background technology:
To adopt alloy powder be carcass material to the tradition diamond-impregnated bit more, evenly or mussily is distributed in the carcass with the diamond particles of micron dimension.Because diamond particles varies in size; Distribute and discontinuity; Particularly inhomogeneous along depth profile, and receive the influence of the adhesion property quality of carcass, diamond particles is crossed at drilling process easily and is come off; Roll, had a strong impact on abrasion resistance properties, drilling efficiency and the application life of diamond bit.In addition, the end labial surface of diamond-impregnated bit all requires to have carried out shaped design according to different Bedrock Geology bodies because end labial surface all by alloy powder (comprising bortz powder) or and form than the diamond crystals of coarsegrain; In the drilling process, when particularly passing through the stratum hard, that abrasiveness is strong, after a period of time; Functional deterioration after the wearing and tearing of end labial surface, takes place in the end labial surface of drill bit plane or the circular arc of becoming easy to wear; Significantly reduce drilling efficiency, increased cost.
With the immediate prior art of the present invention be that a key name is called " biomimetic golden-embedded diamond drilling bit and manufacturing approach thereof ", the patent application of application number 200610016924.6.The drill bit of a kind of biomimetic golden-embedded diamond that is designed is in carcass and high-abrasive material, to introduce material such as dimond synneusis as non-smooth kenel material, has improved the effect of drill bit, obtains better effects.Except other materials, only mention with the dimond synneusis post and do high-abrasive material.
Summary of the invention:
The technical problem that the present invention will solve is, the CVD diamond film is used for the manufacturing of geology drill bit, designs the drill bit of a kind of not threshing in use, stable performance, mar proof height and long service life.
For reaching the drill bit of not threshing, stable performance, mar proof height and long service life; In drill bit, replace traditional diamond dust or particle or dimond synneusis with the CVD diamond thick-film, through certain distributional pattern; With CVD diamond film or diamond film and diamond particles mix be embedded into drill bit end labial surface or/and the side; Make the abrasion resistance of drill bit stronger, guarantee the roughness of bit bottom lip surface and effectively go out sword, and protect the footpath effectively; Ability when particularly improving the stratum that probing is hard, abrasiveness is strong improves its drilling efficiency, operating distance and application life.The drilling bit with diamond film that this invention is made, cost is low, and technology is simple, is easy to promote.
The making of CVD diamond film is to adopt the technology of existing moulding to accomplish.The CVD method can be microwave plasma CVD technique (MPCVD), electronics auxiliary heat filament CVD method (EA-HFCVD), direct current hot cathode glow plasma CVD method or direct current jet plasma CVD method etc.The polycrystalline diamond film of CVD method preparation; Its hardness is near natural diamond; The strong property that links to each other of polycrystalline diamond film intergranule in addition, not threshing in the use remains certain roughness and effectively goes out sword; The characteristics of mar proof height and stable performance in application life make it be called the ideal material of making sintered carbide tools again.
The structure of the drill bit of impregnated with diamond film of the present invention is:
A kind of drill bit of impregnated with diamond film is made up of steel body 1 and working lining 2, it is characterized in that, working lining 2 is made up of carcass material 3 and CVD diamond film 4; Diamond film 4 is inlayed and is arranged in the carcass material 3; Described diamond film 4 is sheets or/and the bar column, and the length of diamond film 4 is less than or equal to the thickness of working lining 2, width 1～5mm.
That is to say that the long limit of diamond film 4 and the parallel axes of drill bit are embedded in the carcass material 3.If the long limit of diamond film 4 and the axis normal of drill bit, in use diamond film 4 comes off easily.
Between diamond film 4, can be inlaid with diamond crystals 5, just in carcass material 3, contain diamond crystals 5.
Can also be at the interior of working lining 2 or/and lateral surface be inlaid with sheet or bar column diamond film; Play a part to protect the footpath.Or in working lining 2 or/and the diamond film 4 of lateral surface extends to end labial surface always, play footpath and the effect that strengthens end labial surface protected simultaneously.
The drill bit molding mode comprises one-shot forming and inserts the formula post forming.One-shot forming is meant the slug type hot pressing diamond bit, and the formula post forming of inserting is that first sintering goes out impregnated diamond segment, forms drill bit to impregnated welding-on milling on the good steel body then.Wherein the handle that is meant of sintering wants the sample of sintering to put into the graphite jig that processes, heat-agglomerating in intermediate frequency furnace.The dwell pressure area per sample that sintering adopts is not all 1～20MPa, and sintering temperature is 900～1100 ℃, and the heat-insulation pressure keeping time is 5～10min.Welding-on is meant puts into high-frequency heating apparatus to sample, following impregnated diamond segment that sinters of 700～900 ℃ temperature scolder auxiliary down with mill good rigid body and weld together, polish scolder and other unnecessary parts at last to ooze out around disposing.
The detailed process that adopts one-step moulding method to make the drill bit of impregnated with diamond film is described below:
A kind of preparation method of drill bit of impregnated with diamond film has the cutting of diamond film, the process of drill bit moulding;
The cutting of said diamond film, using the diamond film 4 of CVD method growth is self-supported membrane, thickness cuts into sheet or bar column with laser cutting machine with diamond film 4 between 0.5～3mm;
Said drill bit moulding is in graphite jig, to put into carcass material 3, in carcass material 3, puts diamond film 4 as working lining 2; Put into steel body 1 again; With being housed, the graphite jig of wanting sintered sample is placed on heat-agglomerating in the intermediate frequency furnace; The dwell pressure that sintering adopts is 1～20MPa, and sintering temperature is 900～1100 ℃, and the heat-insulation pressure keeping time is 5～10min, and the formation drill bit is sintered into one.
The employing detailed process that the formula post forming method makes the drill bit of impregnated with diamond film of inserting is:
A kind of preparation method of drill bit of impregnated with diamond film has the process of welding fabrication of sinter molding and drill bit of cutting, the working lining of diamond film;
The cutting of said diamond film, using the diamond film 4 of CVD method growth is self-supported membrane, thickness cuts into sheet or bar column with laser cutting machine with diamond film 4 between 0.5～3mm;
The sinter molding of said working lining is in carcass material 3, to put diamond film 4, puts into graphite jig, heat-agglomerating in intermediate frequency furnace; The dwell pressure that sintering adopts is 1～20MPa, and sintering temperature is 900～1100 ℃, and the heat-insulation pressure keeping time is 5～10min, forms working lining 2;
The welding fabrication of said drill bit is that the sample of placing scolder working lining 2 and rigid body 1 and between the two is put into high-frequency heating apparatus, welding fabrication under 700～900 ℃ temperature, last polishing.
No matter adopt one-step moulding method still to adopt the formula post forming method of inserting, can diamond crystals 5 evenly be bonded on bar column or the lamellar gold diamond film 4 earlier, and then be embedded in the carcass material 3; Perhaps that diamond crystals 5 mixing are impregnated in carcass material 3, sinter the drill bit that between diamond film 4, is inlaid with diamond crystals 5 at last into.
The preparation method of the drill bit of impregnated with diamond film of the present invention can also be applied to the manufacturing of diamond saw blade and diamond grinding head.Process is the same with the preparation drill bit.
Sheet or bar column diamond film 4 can use laser instrument that the Large Area CVD Diamond Films cutting is formed, and the thickness of diamond film can be in 0.5～3mm scope, and size is decided because of drill bit design.Between sheet and the sheet or the distance between bar post and the bar post can confirm according to design.
Adopt the diamond film geology drill bit and the manufacture craft of such scheme, make diamond film mode according to design in carcass, can be divided into: sheet, the bar column, sheet and the mixing of bar column diamond film or above three kinds mix with diamond particles respectively and arrange.To the different geological situation, can adopt different diamond film arrangement modes, make its performance maximum effect, increased the abrasion resistance of drill bit, the life-span that has reduced the cutting adhesiveness, reduced cutting frictional resistance, improved stock-removing efficiency and instrument.With common diamond bit relatively, have long, characteristics such as drilling speed is fast, energy consumption is low, antiseized rock dust ability is strong of life-span, and the effect of the footpath of guarantor can be arranged, greatly energy efficient, reduce cost, improved product quality.
To sum up, the present invention is a kind of product that can significantly improve operating efficiency and prolongation drilling life of bit.Be characterized in:
1) replaces with diamond film or part replaces diamond particles, guaranteed the roughness of not threshing of diamond in the drilling process or few threshing, bit bottom lip surface and effectively gone out sword, make drilling efficiency, creep into distance and significantly improve stable performance, long service life.
2) can adopt the design of multiple sheet or bar cylinda gold diamond film and end lip, side distributional pattern according to the characteristics and the purposes of drill bit.
Description of drawings
Fig. 1 is the drill bit general structure sectional drawing of impregnated with diamond film of the present invention.
Fig. 2 is the labial surface and the generalized section of Inlaid strip column drilling bit with diamond film working lining of the present invention.
Fig. 3 is labial surface and a generalized section of inlaying the drill bit working lining of sheet diamond film of the present invention.
Fig. 4 is the labial surface and the generalized section of the drill bit working lining of Inlaid strip column of the present invention and lamellar gold diamond film.
Fig. 5 is labial surface and the generalized section that between diamond film, is inlaid with the drill bit working lining of diamond crystals of the present invention.
Fig. 6 is labial surface and the generalized section that the sheet diamond film has the drill bit working lining of protecting the footpath effect of inlaying of the present invention
The specific embodiment
The following example is to further specify of the present invention, rather than limits to scope of the present invention.
The drill bit general structure of embodiment 1 accompanying drawings impregnated with diamond film of the present invention
In Fig. 1～4,1 is the steel body, and 2 is working lining, and 3 is carcass material, and 4 is diamond film, and 5 is diamond crystals.Wherein, impregnated with diamond film 4 constitutes working lining 2 in the carcass material 3.
Identical with existing drill bit, the drill bit of impregnated with diamond film also be by steel body 1 and working lining 2 in order coaxial line be fixed together and constitute, still, working lining 2 of the present invention is to be inlayed to be arranged in the carcass material 3 by diamond film 4 to constitute, and sees Fig. 1.Described diamond film 4 can be a sheet, like Fig. 3; Can be the bar column, like Fig. 2; Can be sheet and bar column alternately, like Fig. 4.
The length of diamond film 4 is less than or equal to the thickness of working lining 2, and width is 1～5mm.The width of the diamond film 4 of sheet is generally 3～5mm, and the width of the diamond film 4 of bar column is generally 1～3mm.
The lip distribution is the diamond film 4 of sheet the end of at, and the horizontal edge of lamellar gold diamond film 4 is radially vertical with the drill bit cross section, promptly distributes along drill bit rotation tangential direction; Bar column diamond film 4 is the lip distributional pattern end of at, be at random or rule distribute; Or bar column diamond film and lamellar gold diamond film interphase distribution.
Be inlaid with the structure of the drill bit of diamond crystals 5 between embodiment 2 diamond films 4
Fig. 5 provides labial surface and the generalized section that between diamond film, is inlaid with the drill bit working lining of diamond crystals of the present invention.Wherein 5 is diamond crystals.Diamond crystals 5 can mix impregnated in carcass material 3; Also can diamond crystals 5 evenly be bonded on bar column or the lamellar gold diamond film 4 earlier, and then be embedded in the carcass material 3, shown in Figure 5 is exactly the structure of latter event.
Fig. 6 provides labial surface and the generalized section that diamond film of the present invention works the drill bit working lining of protecting the footpath effect.Wherein the surface of diamond film 4 is exposed to the interior of working lining 2 or/and lateral surface in use works to protect the footpath.The side of bar column diamond film 4 also can be exposed to the interior of working lining 2 or/and lateral surface in use works to protect the footpath equally.
The preparation and the cutting of embodiment 4 diamond films 4
The used polycrystalline diamond film 4 of the embodiment that the present invention mentioned can be to adopt the growth of microwave plasma CVD equipment; High-speed rapid growth polycrystalline diamond on single crystalline Si; After the growth Si is disposed with chemical method, obtain the high-quality polycrystalline diamond film of self-supporting.
The used polycrystalline diamond film 4 of the embodiment that the present invention mentioned also can be to grow in the hot cathode glow discharge CVD equipment that adopts scientific research task group of the present invention to research and develop, and can grow high-quality polycrystalline diamond film.
The used polycrystalline diamond film 4 of the embodiment that the present invention mentioned can also be the electronics auxiliary heat filament CVD equipment growth of adopting scientific research task group of the present invention to reequip voluntarily, can large-area growth polycrystalline diamond film.
To the cutting of diamond film 4, employed laser instrument is the multifunctional solid pulse laser among the embodiment that the present invention mentioned.Can cut the polycrystalline diamond flag or the diamond strips of arbitrary shape through programming Control.
The one-time formed preparation of drill bit (1) of embodiment 5 impregnated with diamond film of the present invention
Getting the position that the lamellar gold diamond film 4 of 40 well cuttings provides by Fig. 3 is embedded in the carcass material 3 uniformly; Become working lining 2 materials; Working lining 2 materials are packed into put into steel body 1 after the compacting in the graphite jig; Oven dry back sintering under the condition of HTHP is hot-forming, in heat insulating material, slowly cools to the processing mouth of a river and screw thread after the room temperature, is impregnated with diamond bar drill bit.The dwell pressure area per sample that sintering adopts is not all 1～20MPa, and sintering temperature is 900～1100 ℃, and the heat-insulation pressure keeping time is 5～10min.
All drill bits, saw blade, bistrique also can according to said method design and produce arbitrarily.
The one-time formed preparation of drill bit (2) of embodiment 6 impregnated with diamond film of the present invention
Getting the position that the bar column diamond film 4 of 40 well cuttings provides by Fig. 2 is embedded in the carcass material 3 uniformly; Become working lining 2 materials; Working lining 2 materials are packed into put into steel body 1 after the compacting in the graphite jig; Oven dry back is hot-forming under the condition of HTHP, in heat insulating material, slowly cools to the processing mouth of a river and screw thread after the room temperature, is impregnated with diamond bar drill bit.Process conditions are with embodiment 5.
All drill bits, saw blade, bistrique specification also can according to said method design and produce arbitrarily.
The one-time formed preparation of drill bit (3) of embodiment 7 impregnated with diamond film of the present invention
Getting the position that the diamond 4 of diamond film 4 and 40 grain slices of the bar column of 32 well cuttings provides by Fig. 4 is embedded in the carcass material 3 uniformly; Become working lining 2 materials; Working lining 2 materials are packed into put into steel body 1 after the compacting in the graphite jig; Oven dry back is hot-forming under the condition of HTHP, in heat insulating material, slowly cools to the processing mouth of a river and screw thread after the room temperature, is the impregnated with diamond film drill bit.Process conditions are with embodiment 5.
All drill bits, saw blade, bistrique specification also can according to said method design and produce arbitrarily.
The one-time formed preparation of drill bit (4) of embodiment 8 impregnated with diamond film of the present invention
All drill bits, saw blade, bistrique specification can according to said method design arbitrarily.
The insert preparation of formula post forming of the drill bit of embodiment 9 impregnated with diamond film of the present invention
Claims (6)
1. the drill bit of an impregnated with diamond film is made up of steel body (1) and working lining (2), and working lining (2) is made up of carcass material (3) and chemistry for gas phase depositing diamond film (4); Diamond film (4) is inlayed and is arranged in the carcass material (3); The length of diamond film (4) is less than or equal to the thickness of working lining (2), 1～5 millimeter of width; It is characterized in that described diamond film (4) is a sheet; At the interior of working lining (2) or/and lateral surface is inlaid with lamellar gold diamond film (4) or at the interior of working lining (2) or/and the diamond film of lateral surface (4) extends to end labial surface always; The horizontal edge of lamellar gold diamond film (4) is radially vertical with the drill bit cross section, promptly along the tangential distribution of drill bit rotation direction.
2. according to the drill bit of the described impregnated with diamond film of claim 1, it is characterized in that, between diamond film (4), be inlaid with diamond crystals (5); Or bar column diamond film and lamellar gold diamond film interphase distribution.
3. the preparation method of the drill bit of the impregnated with diamond film of a claim 1 has the cutting of diamond film, the process of drill bit moulding; The cutting of said diamond film, using the diamond film (4) of chemical gaseous phase depositing process growth is self-supported membrane, thickness cuts into sheet with laser cutting machine with diamond film (4) between 0.5～3mm; It is characterized in that,
Said drill bit moulding is in graphite jig, to put into carcass material (3), in carcass material (3), puts diamond film (4) as working lining (2); Put into steel body (1) again; With being housed, the graphite jig of wanting sintered sample is placed on heat-agglomerating in the intermediate frequency furnace; The dwell pressure that sintering adopts is 1～20MPa, and sintering temperature is 900～1100 ℃, and the heat-insulation pressure keeping time is 5～10min, and the formation drill bit is sintered into one.
4. according to the preparation method of the drill bit of the described impregnated with diamond film of claim 3, it is characterized in that, diamond crystals (5) evenly is bonded on the lamellar gold diamond film (4) earlier, and then is embedded in the carcass material (3); Or with diamond crystals (5) random arrangement between diamond film (4), be embedded in jointly in the carcass material (3).
5. the preparation method of the drill bit of the impregnated with diamond film of a claim 1 has the process of welding fabrication of sinter molding and drill bit of cutting, the working lining of diamond film; The cutting of said diamond film, using the diamond film (4) of chemical gaseous phase depositing process growth is self-supported membrane, thickness cuts into sheet with laser cutting machine with diamond film (4) between 0.5～3mm; It is characterized in that,
The sinter molding of said working lining is in carcass material (3), to put diamond film (4), puts into graphite jig, heat-agglomerating in intermediate frequency furnace; The dwell pressure that sintering adopts is 1～20MPa, and sintering temperature is 900～1100 ℃, and the heat-insulation pressure keeping time is 5～10min, forms working lining (2);
The welding fabrication of said drill bit is that the sample of placing silver-copper brazing alloy working lining (2) and rigid body (1) and between the two is put into high-frequency heating apparatus, welding fabrication under 700～900 ℃ temperature, last polishing.
6. according to the preparation method of the drill bit of the described impregnated with diamond film of claim 5, it is characterized in that, diamond crystals (5) evenly is bonded on the lamellar gold diamond film (4) earlier, and then is embedded in the carcass material (3); Or with diamond crystals (5) random arrangement between diamond film (4), be embedded in jointly in the carcass material (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910067292XA CN101608533B (en) | 2009-07-20 | 2009-07-20 | Drill bit impregnated with diamond film and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910067292XA CN101608533B (en) | 2009-07-20 | 2009-07-20 | Drill bit impregnated with diamond film and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101608533A CN101608533A (en) | 2009-12-23 |
| CN101608533B true CN101608533B (en) | 2012-06-20 |
Family
ID=41482430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910067292XA Expired - Fee Related CN101608533B (en) | 2009-07-20 | 2009-07-20 | Drill bit impregnated with diamond film and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101608533B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824968B (en) * | 2010-05-13 | 2013-02-20 | 中国地质大学（北京） | Novel brazed impregnated diamond bit |
| CN103237617B (en) * | 2010-07-23 | 2016-06-08 | 国民油井Dht公司 | Polycrystalline diamond cutting element and the method using it |
| CN102733758B (en) * | 2012-07-06 | 2014-11-19 | 中煤科工集团西安研究院 | Impregnated block type diamond drill for coring |
| CN102828696B (en) * | 2012-09-11 | 2014-07-23 | 吉林大学 | Iron-based diamond-impregnated bit for drilling in hard slipping foundation |
| CN104148652B (en) * | 2014-08-11 | 2017-08-18 | 泉州众志金刚石工具有限公司 | A kind of preparation method of diamond block |
| CN104399992B (en) * | 2014-10-20 | 2017-01-18 | 四川川庆石油钻采科技有限公司 | Manufacturing method of double-cutting impregnated insert |
| CN105773852A (en) * | 2016-03-08 | 2016-07-20 | 江苏科技大学 | Diamond-impregnated bit and manufacturing method thereof |
| CN105728732B (en) * | 2016-04-19 | 2017-10-10 | 桂林特邦新材料有限公司 | Diamond bit gauge material jack frock and gauge material embedment method |
| CN112453411B (en) * | 2020-11-23 | 2022-06-21 | 湖南省煤炭地质勘查院 | Down-the-hole drill bit containing laser 3D printing method coated diamond layer and preparation method thereof |
| CN112610160B (en) * | 2020-12-17 | 2022-04-05 | 同济大学 | Step-shaped composite sheet of CVD diamond layer-impregnated diamond layer-polycrystalline diamond composite sheet layer |
| CN115401197B (en) * | 2022-08-17 | 2024-01-23 | 中铁第四勘察设计院集团有限公司 | Diamond-impregnated drill bit manufacturing die, manufacturing method and diamond-impregnated drill bit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4592433A (en) * | 1984-10-04 | 1986-06-03 | Strata Bit Corporation | Cutting blank with diamond strips in grooves |
| EP0480895A2 (en) * | 1990-10-11 | 1992-04-15 | Sandvik Aktiebolag | Improved diamond tools for rock drilling, metal cutting and wear part applications |
| CN1478990A (en) * | 2003-07-10 | 2004-03-03 | 中国地质大学（武汉） | Diamond-hard alloy composite type coring bit and its manufacturing process |
| CN1896451A (en) * | 2006-06-07 | 2007-01-17 | 吉林大学 | Biomimetic golden-embedded diamond drilling bit and its production |
| CN101285371A (en) * | 2008-05-30 | 2008-10-15 | 中南大学 | Diamond positioning and arrangement impregnated rock bit and fabrication technology thereof |
| CN101353946A (en) * | 2008-09-11 | 2009-01-28 | 吉林大学 | Diamond core bit capable of reproducing water gap |
-
2009
- 2009-07-20 CN CN200910067292XA patent/CN101608533B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4592433A (en) * | 1984-10-04 | 1986-06-03 | Strata Bit Corporation | Cutting blank with diamond strips in grooves |
| EP0480895A2 (en) * | 1990-10-11 | 1992-04-15 | Sandvik Aktiebolag | Improved diamond tools for rock drilling, metal cutting and wear part applications |
| CN1478990A (en) * | 2003-07-10 | 2004-03-03 | 中国地质大学（武汉） | Diamond-hard alloy composite type coring bit and its manufacturing process |
| CN1896451A (en) * | 2006-06-07 | 2007-01-17 | 吉林大学 | Biomimetic golden-embedded diamond drilling bit and its production |
| CN101285371A (en) * | 2008-05-30 | 2008-10-15 | 中南大学 | Diamond positioning and arrangement impregnated rock bit and fabrication technology thereof |
| CN101353946A (en) * | 2008-09-11 | 2009-01-28 | 吉林大学 | Diamond core bit capable of reproducing water gap |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101608533A (en) | 2009-12-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101608533B (en) | Drill bit impregnated with diamond film and manufacturing method thereof | |
| EP1190791B1 (en) | Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength | |
| US6601662B2 (en) | Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength | |
| US6544308B2 (en) | High volume density polycrystalline diamond with working surfaces depleted of catalyzing material | |
| CA2674469C (en) | Intermetallic aluminide polycrystalline diamond compact (pdc) cutting elements | |
| US8784767B2 (en) | Polycrystalline diamond and method of manufacturing the same | |
| CA2423102C (en) | Polycrystalline diamond with a surface depleted of catalyzing material | |
| US10280689B2 (en) | Polycrystalline superhard construction | |
| CN102505090A (en) | Preparation method of high-toughness polycrystalline cubic boron nitride compound sheets | |
| EP1318969A1 (en) | High volume density polycrystalline diamond with working surfaces depleted of catalyzing material | |
| AU2001274230A1 (en) | Polycrystalline diamond with a surface depleted of catalyzing material | |
| CN101336311A (en) | Pcbn cutting tool components | |
| CN102861917A (en) | Preparation method of polycrystalline diamond compact covered by strong-combination chemical vapor deposition (CVD) diamond layer | |
| JP6388945B2 (en) | Polycrystalline chemical vapor deposition diamond tool parts and methods of making, mounting and using the same | |
| CN201460746U (en) | Diamond film impregnated bit | |
| US20060236616A1 (en) | Polycrystalline diamond tools and method of making thereof | |
| CN107604232B (en) | A kind of hard alloy substrate, machining composite polycrystal-diamond and preparation method thereof | |
| EP3749484B1 (en) | Tool cutting element | |
| US20030183426A1 (en) | Polycrystalline Material Element with Improved Wear Resistance And Methods of Manufacture Thereof | |
| CN220469801U (en) | Polycrystalline diamond compact | |
| Pisarciuc | Structure, material properties and applications of diamond-like materials | |
| JP2012030346A (en) | Surface coated drill excellent in wear resistance and chip discharging characteristics | |
| CN206529520U (en) | Composite diamond film | |
| AU2001286049B2 (en) | High volume density polycrystalline diamond with working surfaces depleted of catalyzing material | |
| WO2019155005A1 (en) | Tool cutting element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20150720 |
|
| EXPY | Termination of patent right or utility model |