CN108222847A - A kind of diamond bit and its manufacture craft containing hard brittleness abrasive grain - Google Patents
A kind of diamond bit and its manufacture craft containing hard brittleness abrasive grain Download PDFInfo
- Publication number
- CN108222847A CN108222847A CN201810234209.2A CN201810234209A CN108222847A CN 108222847 A CN108222847 A CN 108222847A CN 201810234209 A CN201810234209 A CN 201810234209A CN 108222847 A CN108222847 A CN 108222847A
- Authority
- CN
- China
- Prior art keywords
- abrasive grain
- diamond
- hard brittleness
- grain
- carcass
- 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.)
- Granted
Links
- 239000006061 abrasive grain Substances 0.000 title claims abstract description 128
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 71
- 239000010432 diamond Substances 0.000 title claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000007493 shaping process Methods 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 9
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 claims 1
- 238000005553 drilling Methods 0.000 abstract description 10
- 238000004080 punching Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000004575 stone 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
-
- 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
- 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)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a kind of diamond bit and its manufacture craft containing hard brittleness abrasive grain, drill bit includes carcass, and multigroup abrasive grain is equipped in carcass, and every group of abrasive grain includes diamond abrasive grain and hard brittleness abrasive grain, and diamond abrasive grain and hard brittleness abrasive grain mutually overlap.Manufacture craft includes the following steps：1）Hard brittleness abrasive grain shaping is sieved, 2）It is punched in template, 3）Pre-stamped carcass thin slice, 4）Arrange coarse grain diameter abrasive grain on carcass thin slice, 5）Arrange fine grain abrasive grain on carcass thin slice, 6）By multilayer carcass sheet combination cold moudling.The diamond bit of the present invention solves the problems, such as that the bit performance caused by relative position variance factor in carcass of hard brittleness abrasive grain and diamond is unstable, improves the batch stability and drilling efficiency of drill bit.
Description
Technical field
The present invention relates to a kind of diamond bit, more particularly, to a kind of diamond bit and its system containing hard brittleness abrasive grain
Make technique.
Background technology
Obtaining underground deep rock core by probing means is the direct method of evaluation geological and mineral reserves, and effectively to obtain rock
The ore deposit heart then requires drill bit that must have excellent performance.In recent years, it reconnoitres and comments with around Earth high efficiency of energy
The expansion of valency research, the situation for boring chance hard and compact bad ground are more and more common.In addition, the increasing recently as environmental consciousness
Strong and ecological construction deep propulsion, exploration operation also develop towards the direction of green probing, will " green, coordination " through whole
In a drilling process, specifically then it is embodied in and improves drilling efficiency, reduces in work progress to disturbance of environment etc..Therefore,
Higher requirement is proposed to the performance of diamond bit.It, can by adding the hard brittleness abrasive grain of debita spissitudo into carcass
Improve the drilling performance of drill bit.At present, hard brittleness abrasive grain and diamond particles are to be randomly distributed in tire in existing technical solution
In body, therefore, it is impossible to solve the brill caused by hard brittleness abrasive grain and relative position variance factor of the diamond in carcass
The problem of head performance is unstable, bit performance lot stability is poor, and drilling performance effectively can not be predicted.
Invention content
In order to solve the above technical problem, the present invention provides one kind can solve due to hard brittleness abrasive grain with diamond in carcass
In relative position variance factor caused by bit performance it is unstable the problem of, improve drill bit batch stability and
The diamond bit and its manufacture craft containing hard brittleness abrasive grain of drilling efficiency.
The technical solution adopted by the present invention is：
A kind of diamond bit containing hard brittleness abrasive grain including carcass, is equipped with multigroup abrasive grain in carcass, it is characterised in that：Every group
Abrasive grain includes diamond abrasive grain and hard brittleness abrasive grain, and diamond abrasive grain and hard brittleness abrasive grain mutually overlap.
In the above-mentioned diamond bit containing hard brittleness abrasive grain, every group of abrasive grain includes a hard brittleness abrasive grain and a gold
Hard rock abrasive grain, hard brittleness abrasive grain are located at the front or behind of diamond abrasive grain, and the granularity of hard brittleness abrasive grain is less than diamond abrasive grain
Granularity.
In the above-mentioned diamond bit containing hard brittleness abrasive grain, every group of abrasive grain includes two hard brittleness abrasive grains and a gold
Hard rock abrasive grain, two hard brittleness abrasive grains are located at the front and rear sides of diamond abrasive grain respectively, and the granularity of hard brittleness abrasive grain is more than Buddha's warrior attendant
The granularity of stone mill grain.
In the above-mentioned diamond bit containing hard brittleness abrasive grain, the granularity of diamond abrasive grain is 420 μm -590 μm, hard crisp
Property abrasive grain granularity for 300 μm -710 μm, hard brittleness abrasive grain material is silicon carbide, corundum, cubic boron or hard alloy
Particle, the tyre body hardness are 15-HRC 30 of HRC.
A kind of manufacture craft of the above-mentioned diamond bit containing hard brittleness abrasive grain, includes the following steps：
1）Hard brittleness abrasive grain shaping is sieved, 2）It is punched in template, 3）Pre-stamped carcass thin slice, 4）It is arranged on carcass thin slice
Thick abrasive grit size, 5）Arrange fine grain abrasive grain on carcass thin slice, 6）By multilayer carcass sheet combination cold moudling.
In the manufacture craft of the above-mentioned diamond bit containing hard brittleness abrasive grain, step 1）The middle hard brittleness mill by shaping
Grain so that spherical hard brittle particle accounts for the 70% -85% of total quantity, and the 15% of total quantity is accounted for angular hard brittleness abrasive grain
- 30%。
In the manufacture craft of the above-mentioned diamond bit containing hard brittleness abrasive grain, step 2）In template on opened up by design
The hole of two kinds of different pore sizes, the size in the hole of large aperture are not more than the average grain diameter of thick abrasive grit size, the size in the hole of small-bore
No more than 0.5 times of the average grain diameter of fine grain abrasive grain.
In the manufacture craft of the above-mentioned diamond bit containing hard brittleness abrasive grain, step 6）Middle multilayer carcass thin slice is pressed into
After type, it is put into reduction furnace and is placed under conditions of 300-350 DEG C 10-15 minutes, it is ensured that pressure sensitive adhesive fully volatilizees.
Compared with prior art, the beneficial effects of the invention are as follows：
The form of the hard brittleness abrasive grain of the present invention and diamond overlap joint can directly improve the cutting ability of individual particle diamond, edge
Cutting direction, the hard brittleness Abrasive Particle Size positioned at diamond both sides are more than diamond grain size, are conducive to hard crisp using it during drilling
Characteristic forms groove in diamond both sides, improves individual particle diamond cooling effect；Hard brittleness positioned at the forward and backward side of diamond is ground
Grain grain size is less than diamond grain size, generates dressing effect to diamond using its brittle crush characteristic when being conducive to drilling, simultaneously
Avoid diamond exposure is excessively high or back-supported power decline caused by drill bit advanced wear fail, the present invention solve by
In the hard brittleness abrasive grain and the unstable bit performance caused by relative position variance factor of the diamond in carcass the problem of, carry
The high batch stability of drill bit；In addition, by the adjustment of diamond and hard brittleness abrasive grain difference joint form ratio, energy
The adjusting for enough making drill bit drilling performance is more targeted, improves the accuracy of drilling performance prediction.
Description of the drawings
Fig. 1 is the diamond abrasive grain of the embodiment of the present invention 1 and regularity of distribution structure chart of the hard brittleness abrasive grain in carcass.
Fig. 2 is the diamond abrasive grain of the embodiment of the present invention 2 and regularity of distribution structure chart of the hard brittleness abrasive grain in carcass.
Fig. 3 is the diamond abrasive grain of the embodiment of the present invention 3 and regularity of distribution structure chart of the hard brittleness abrasive grain in carcass.
In figure：1-diamond；2-hard brittleness abrasive grain；3-mouth of a river, arrow are cutting direction.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the diamond bit containing hard brittleness abrasive grain of the present invention, is equipped with multigroup including carcass 4, in carcass 4
Abrasive grain, every group of abrasive grain include a hard brittleness abrasive grain 2 and a diamond abrasive grain 1, diamond abrasive grain 1 and hard brittleness abrasive grain 2
Mutually overlap joint, hard brittleness abrasive grain 2 are located at the front of diamond abrasive grain 1, and the granularity of hard brittleness abrasive grain 2 is less than diamond abrasive grain 1
Granularity.Hard brittleness abrasive grain 2 can also be located at the rear of diamond abrasive grain 1, as shown in Figure 2.
As shown in figure 3, the quantity of the hard brittleness abrasive grain 2 in every group of abrasive grain can be two, respectively positioned at diamond abrasive grain 1
Front and rear sides, the granularity of hard brittleness abrasive grain 2 is more than the granularity of diamond abrasive grain 1.
Diamond grit is 420 μm -590 μm, and the granularity of hard brittleness abrasive grain is 300 μm -710 μm, hard brittleness abrasive grain
Material can be silicon carbide, corundum, cubic boron, hard alloy particle, and tyre body hardness is 15-HRC 30 of HRC.
A kind of diamond bit manufacture craft containing hard brittleness abrasive grain, includes the following steps
（1）Hard brittleness abrasive grain shaping is sieved
Sieving process by shaping ensures the hard brittleness abrasive grain being added in bit matrix so that accounting for for spherical hard brittleness abrasive grain is total
The 70% -85% of quantity accounts for the 15% -30% of total quantity with angular hard brittleness abrasive grain.
（2）It is punched in template
The punching of 2 kinds of different pore sizes is carried out in template according to design requirement, the punching size of large aperture is ground no more than coarse grain diameter
The average grain diameter of grain, the punching size of small-bore are not more than 0.5 times of the average grain diameter of fine grain abrasive grain, to ensure that coarse grain diameter is ground
Grain can not be fallen into the punching of small-bore.
（3）Pre-stamped carcass thin slice
Uniformly mixed carcass powder is weighed according to design requirement, puts and is pressed into cold stamping die, press power can root
It is adjusted according to the performance of different carcasses.
（4）Coarse grain abrasive grain is arranged on carcass thin slice
Appropriate heat-sensitive glue is sprayed on carcass, the template having openning hole is covered on carcass thin slice, thick abrasive grit size is sprinkled upon mould
Plate surface uniformly hangs brush, until thick abrasive grit size is entirely fallen in the hole of the large aperture in template with soft brush.
（5）Fine grain abrasive grain is arranged on carcass thin slice
After having arranged thick abrasive grit size, fine grain abrasive grain is sprinkled upon template performance, brush is uniformly hung with banister brush, until fine grain is ground
Grain is entirely fallen in the hole of the small-bore in template.
（6）Multilayer carcass sheet combination cold moudling
The individual layer carcass thin slice stack combinations for having suppressed completion are put into Cutter cold pressing punching block, are carried out using hydraulic press
Cutter cold moudling.Cutting tooth after cold moudling is put into reduction furnace, 10- is placed under conditions of 300-350 DEG C
15 minutes, it is ensured that pressure sensitive adhesive volatilizees.
（7）Drill-bit sintering and machining
The Cutter of cold moudling is put into graphite jig, carries out upper strata filling inoperative layer powder and gauge first
Then glomerocryst places drill bit rigid body, carry out hot pressed sintering drill blank using Intermediate frequency sintering furnace, finally carry out drill blank
Machining is completed drill bit finished product and is made.
Claims (8)
1. a kind of diamond bit containing hard brittleness abrasive grain including carcass, is equipped with multigroup abrasive grain in carcass, it is characterised in that：Often
Group abrasive grain includes diamond abrasive grain and hard brittleness abrasive grain, and diamond abrasive grain and hard brittleness abrasive grain mutually overlap.
2. the diamond bit according to claim 1 containing hard brittleness abrasive grain, it is characterised in that：Every group of abrasive grain includes one
A hard brittleness abrasive grain and a diamond abrasive grain, hard brittleness abrasive grain are located at the front or behind of diamond abrasive grain, hard brittleness abrasive grain
Granularity be less than diamond abrasive grain granularity.
3. the diamond bit according to claim 1 containing hard brittleness abrasive grain, it is characterised in that：Every group of abrasive grain includes two
A hard brittleness abrasive grain and a diamond abrasive grain, two hard brittleness abrasive grains are located at the front and rear sides of diamond abrasive grain respectively, hard crisp
Property abrasive grain granularity be more than diamond abrasive grain granularity.
4. the diamond bit according to claim 1 containing hard brittleness abrasive grain, it is characterised in that：The granularity of diamond abrasive grain
It it is 420 μm -590 μm, the granularity of hard brittleness abrasive grain is 300 μm -710 μm, and the material of hard brittleness abrasive grain is silicon carbide, just
Beautiful, cubic boron or hard alloy particle, the tyre body hardness are 15-HRC 30 of HRC.
5. a kind of manufacture craft of the diamond bit containing hard brittleness abrasive grain in claim 1-4 described in any claim,
Include the following steps：
1）Hard brittleness abrasive grain shaping is sieved, 2）It is punched in template, 3）Pre-stamped carcass thin slice, 4）It is arranged on carcass thin slice
Thick abrasive grit size, 5）Arrange fine grain abrasive grain on carcass thin slice, 6）By multilayer carcass sheet combination cold moudling.
6. the manufacture craft of the diamond bit according to claim 5 containing hard brittleness abrasive grain, step 1）It is middle to pass through shaping
Hard brittleness abrasive grain so that spherical hard brittle particle accounts for the 70% -85% of total quantity, is accounted for always with angular hard brittleness abrasive grain
The 15% -30% of quantity.
7. the manufacture craft of the diamond bit according to claim 5 containing hard brittleness abrasive grain, step 2）In template on
The hole of two kinds of different pore sizes is opened up by design, the size in the hole of large aperture is not more than the average grain diameter of thick abrasive grit size, small-bore
Hole size no more than 0.5 times of average grain diameter of fine grain abrasive grain.
8. the manufacture craft of the diamond bit according to claim 5 containing hard brittleness abrasive grain, step 6）Middle multilayer carcass
After thin slice compression moulding, it is put into reduction furnace and is placed under conditions of 300-350 DEG C 10-15 minutes, it is ensured that pressure sensitive adhesive fully volatilizees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234209.2A CN108222847B (en) | 2018-03-21 | 2018-03-21 | Diamond bit containing hard and brittle abrasive particles and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234209.2A CN108222847B (en) | 2018-03-21 | 2018-03-21 | Diamond bit containing hard and brittle abrasive particles and manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108222847A true CN108222847A (en) | 2018-06-29 |
| CN108222847B CN108222847B (en) | 2024-01-05 |
Family
ID=62658922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810234209.2A Active CN108222847B (en) | 2018-03-21 | 2018-03-21 | Diamond bit containing hard and brittle abrasive particles and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108222847B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1160001A1 (en) * | 1983-09-05 | 1985-06-07 | Всесоюзный научно-исследовательский и конструкторско-технологический институт природных алмазов и инструмента | Granulated diamond drilling crown bit |
| CN2673557Y (en) * | 2003-06-24 | 2005-01-26 | 张星亮 | High self sharping metal bonding agent diamond product |
| CN103867133A (en) * | 2014-03-27 | 2014-06-18 | 中钢集团洛阳耐火材料研究院有限公司 | Self-sharpening artificial-diamond-impregnated bit with continuous crushing capacity |
| CN204419039U (en) * | 2014-12-29 | 2015-06-24 | 北京探矿工程研究所 | Porous matrix diamond-impregnated bit |
| CN207988952U (en) * | 2018-03-21 | 2018-10-19 | 湖南科技大学 | A kind of diamond bit containing hard brittleness abrasive grain |
-
2018
- 2018-03-21 CN CN201810234209.2A patent/CN108222847B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1160001A1 (en) * | 1983-09-05 | 1985-06-07 | Всесоюзный научно-исследовательский и конструкторско-технологический институт природных алмазов и инструмента | Granulated diamond drilling crown bit |
| CN2673557Y (en) * | 2003-06-24 | 2005-01-26 | 张星亮 | High self sharping metal bonding agent diamond product |
| CN103867133A (en) * | 2014-03-27 | 2014-06-18 | 中钢集团洛阳耐火材料研究院有限公司 | Self-sharpening artificial-diamond-impregnated bit with continuous crushing capacity |
| CN204419039U (en) * | 2014-12-29 | 2015-06-24 | 北京探矿工程研究所 | Porous matrix diamond-impregnated bit |
| CN207988952U (en) * | 2018-03-21 | 2018-10-19 | 湖南科技大学 | A kind of diamond bit containing hard brittleness abrasive grain |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108222847B (en) | 2024-01-05 |
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