CN113913645B - Composition and impregnated block wear part prepared from same - Google Patents
Composition and impregnated block wear part prepared from same Download PDFInfo
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- CN113913645B CN113913645B CN202010645641.8A CN202010645641A CN113913645B CN 113913645 B CN113913645 B CN 113913645B CN 202010645641 A CN202010645641 A CN 202010645641A CN 113913645 B CN113913645 B CN 113913645B
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- 239000000203 mixture Substances 0.000 title claims abstract description 43
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 22
- 239000010432 diamond Substances 0.000 claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011133 lead Substances 0.000 claims abstract description 12
- 239000011135 tin Substances 0.000 claims abstract description 12
- 229910052718 tin Inorganic materials 0.000 claims abstract description 12
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 12
- 239000011701 zinc Substances 0.000 claims abstract description 12
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000012188 paraffin wax Substances 0.000 claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims abstract description 4
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 4
- UQLDLKMNUJERMK-UHFFFAOYSA-L di(octadecanoyloxy)lead Chemical compound [Pb+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O UQLDLKMNUJERMK-UHFFFAOYSA-L 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 description 29
- 238000010438 heat treatment Methods 0.000 description 18
- 238000005245 sintering Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 229910002804 graphite Inorganic materials 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin as the next major constituent
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
-
- 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
-
- 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
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
-
- 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
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
-
- 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)
- Manufacturing & Machinery (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)
- Powder Metallurgy (AREA)
Abstract
The invention provides a composition and an impregnated block wear part prepared from the composition. The composition comprises a first component, a second component and diamond, wherein the first component comprises copper, tin, zinc, lead and zinc stearate, and the second component comprises paraffin and/or epoxy resin.
Description
Technical Field
The present invention provides a composition, and in particular, an impregnated block wear article made therefrom.
Background
In rotary drilling the drill bit also rock wears the drill bit as it breaks up. The ability of rock to wear the drill bit is called the abrasiveness of the rock. The wear of the drill bit due to the abrasiveness of the rock not only increases the consumption of the drill bit, but also decreases the rate of penetration and increases the amount of assistance time required to replace the drill bit. The abrasiveness of rock is closely related to proper bit selection, proper design of the bit, optimal drilling parameters, and proper formulation of bit consumption rates, which directly affects drilling efficiency and drilling costs.
At present, most of the test methods related to rock abrasiveness tests at home and abroad adopt the principle that a metal material mainly made of steel rubs with rock to measure the rock abrasiveness. The principle is adopted to test the abrasiveness of the rock, and the two defects exist: (1) the wear mechanism of the metal material and the rock is not consistent with that of the drill bit material and the rock; (2) when the metal material abrades hard rock, the hard rock cannot be eaten into the rock, and the rock abrasiveness cannot be evaluated without abrasion amount of the metal material and the rock.
Therefore, there is a need to design a wear standard suitable for hard and soft rock, which can comply with the principles of rock and drill bit wear.
Disclosure of Invention
The invention provides a composition which comprises a first component, a second component and diamond, wherein the first component comprises copper, tin, zinc, lead and zinc stearate, and the second component comprises paraffin and/or epoxy resin.
In one embodiment, the total mass of the first component is 100%, copper 82% to 88%, tin 4% to 6%, zinc 4% to 6%, lead 2% to 3%, and zinc stearate 2% to 3%.
In one embodiment, the mass/volume ratio of the first combination and the second component is 20 g: 1ml to 20 g:3 ml.
In one embodiment, the mass ratio of the first component to the diamond is 125: 1 to 200: 3.
in one embodiment, the diamond has a particle size of 20 to 60 mesh.
The second aspect of the invention provides a process for preparing a composition according to any one of the first to third aspects of the invention, comprising the steps of:
1) fully mixing the copper, the tin, the zinc, the lead and the zinc stearate to obtain a first component;
2) fully mixing the first component with the second component to obtain a third component;
3) and thoroughly mixing the third component with the diamond to obtain the composition.
In one embodiment, in step 1), mixing is carried out in a blender for 1 to 1.5 hours.
In one embodiment, step 3) is preceded by a step of drying said third component.
In one embodiment, the temperature of the drying is 70 to 80 ℃ and the time of the drying is 1 to 2 hours.
The third aspect of the invention provides an impregnated wear part made from a composition according to any one of the first to third aspects of the invention or made by a method according to any one of the second to third aspects of the invention.
In one embodiment, the composition according to any one of the first to third aspects of the invention or the composition prepared by the method according to any one of the second to third aspects of the invention is cold-formed and then vacuum-sintered in two temperature gradient stages.
In one embodiment, the temperature of the first stage of vacuum sintering is from 400 to 500 ℃ for a time from 50 minutes to 1.5 hours; the temperature of the second stage is 850 to 1000 ℃ and the time is 1.5 to 3 hours.
The invention has the beneficial effects that:
the impregnated block standard part prepared from the composition has moderate hardness and strength, and when the abrasive property test of the rock is carried out, the abrasion part can be abraded in different degrees on soft rock and hard rock, so that the abrasive property of the soft rock and the hard rock can be effectively tested and distinguished.
Detailed Description
The present invention is further described below with reference to examples, which are intended to be illustrative only, and are not intended to limit the scope of the present invention in any way.
Example 1
(1) 88% of copper, 4% of tin, 4% of zinc, 2% of lead and 2% of zinc stearate are filled into a mixer according to the mass percentage for mixing for 1.5 hours to obtain a fully mixed first component.
(2) The first component was removed from the blender and placed in a glass dish, and the first and second components were mixed at a ratio of 20 g:3ml of the mixture is mixed according to the mass/volume ratio and stirred evenly to obtain a third component. Wherein the second component is paraffin.
(3) And drying the third component for 2 hours at the temperature of 70 ℃ to obtain a dried third component.
(4) And mixing the dried third component and diamond particles with the granularity of 50-60 meshes in a mixer for 2 hours to obtain the composition for preparing the impregnated block wear part, wherein the mass ratio of the first component to the diamond is 125: 1.
(5) weighing 4g of the prepared composition, adding the composition into a steel mold, and performing cold press molding under the pressure of 400MPa for 1 minute to obtain a blank.
(6) And (4) putting the blank into a graphite mold, and sintering in vacuum. The sintering method comprises the following steps: the first stage, heating, raising the temperature to 450 ℃, and keeping the temperature for 1 hour; in the second stage, heating is continued, the temperature is increased to 900 ℃, and the temperature is kept for 2 hours; and a third stage: stopping heating, naturally cooling and demoulding. Wherein, the demoulding operation is smooth, and the manufactured impregnated block wearing part has a regular shape and is a standard cylinder.
Example 2
(1) And (2) filling 82% of copper, 6% of tin, 6% of zinc, 3% of lead and 3% of zinc stearate in a mixer according to the mass percentage, and mixing for 1 hour to obtain a fully mixed first component.
(2) The first component was removed from the blender and placed in a glass dish, and the first and second components were mixed at a ratio of 20 g: 1ml of the mixture is mixed according to the mass/volume ratio and stirred evenly to obtain a third component. Wherein the second component is paraffin.
(3) And drying the third component for 1 hour at the temperature of 80 ℃ to obtain a dried third component.
(4) Mixing the dried third component and diamond particles with the granularity of 20-30 meshes in a mixer for 1 hour to obtain the composition for preparing the impregnated block wear part, wherein the mass ratio of the first component to the diamond is 200: 3.
(5) weighing 4g of the prepared composition, adding the composition into a steel mold, and performing cold press molding under the pressure of 400MPa for 1 minute to obtain a blank.
(6) And (4) putting the blank into a graphite mold, and sintering in vacuum. The sintering method comprises the following steps: the first stage, heating, raising the temperature to 450 ℃, and keeping the temperature for 1 hour; in the second stage, heating is continued, the temperature is increased to 900 ℃, and the temperature is kept for 2 hours; and a third stage: stopping heating, naturally cooling and demoulding. Wherein, the demoulding operation is smooth, and the manufactured impregnated block wearing part has a regular shape and is a standard cylinder.
Example 3
(1) According to the mass percentage, 85% of copper, 5% of tin, 5% of zinc, 2% of lead and 3% of zinc stearate are put into a mixer for mixing for 1 hour, and a fully mixed first component is obtained.
(2) And taking the first component out of the mixer, putting the first component into a glass dish, mixing the first component and the second component in a mass/volume ratio of 50g to 3ml, and uniformly stirring to obtain a third component. Wherein the second component is epoxy resin.
(3) And drying the third component at the temperature of 75 ℃ for 1.5 hours to obtain a dried third component.
(4) And mixing the dried third component and diamond particles with the granularity of 30-40 meshes in a mixer for 2 hours to obtain the composition for preparing the impregnated block wearing piece, wherein the mass ratio of the first component to the diamond is 1000: 11.
(5) Weighing 4g of the prepared composition, adding the composition into a steel mold, and performing cold press molding under the pressure of 400MPa for 1 minute to obtain a blank.
(6) And (4) putting the blank into a graphite mold, and sintering in vacuum. The sintering method comprises the following steps: the first stage, heating, raising the temperature to 450 ℃, and keeping the temperature for 1 hour; in the second stage, heating is continued, the temperature is increased to 900 ℃, and the temperature is kept for 2 hours; and a third stage: stopping heating, naturally cooling and demoulding. Wherein, the demoulding operation is smooth, and the manufactured impregnated block wearing part has a regular shape and is a standard cylinder.
Comparative example 1
(1) According to the mass percentage, 87% of copper, 5% of tin, 5% of zinc and 3% of lead are filled into a mixer for mixing for 1 hour, and a fully mixed first component is obtained.
(2) And taking the first component out of the mixer, putting the first component into a glass dish, mixing the first component and the second component in a mass/volume ratio of 50g to 3ml, and uniformly stirring to obtain a third component. Wherein the second component is paraffin.
(3) And drying the third component for 2 hours at the temperature of 70 ℃ to obtain a dried third component.
(4) And mixing the dried third component and diamond particles with the granularity of 30-35 meshes in a mixer for 2 hours to obtain the composition for preparing the impregnated block wearing piece, wherein the mass ratio of the first component to the diamond is 1000: 11.
(5) Weighing 4g of the prepared composition, adding the composition into a steel mold, and performing cold press molding under the pressure of 400MPa for 1 minute to obtain a blank.
(6) And (4) putting the blank into a graphite mold, and sintering in vacuum. The sintering method comprises the following steps: the first stage, heating, raising the temperature to 450 ℃, and keeping the temperature for 1 hour; in the second stage, heating is continued, the temperature is raised to 900 ℃, and the temperature is kept for 2 hours; and a third stage: stopping heating, naturally cooling and demoulding. Wherein, the demoulding operation is difficult, and the manufactured impregnated block wearing part has irregular shape and is not a standard cylinder, thereby influencing the later use.
Comparative example 2
(1) 80% of copper, 8% of tin, 8% of zinc, 2% of lead and 2% of zinc stearate are put into a mixer according to the mass percentage for mixing for 1 hour to obtain a fully mixed first component.
(2) And taking the first component out of the mixer, putting the first component into a glass dish, mixing the first component and the second component in a mass/volume ratio of 50g to 3ml, and uniformly stirring to obtain a third component. Wherein the second component is paraffin.
(3) And drying the third component for 2 hours at the temperature of 75 ℃ to obtain a dried third component.
(4) And mixing the dried third component and diamond particles with the granularity of 30-40 meshes in a mixer for 2 hours to obtain the composition for preparing the impregnated block wear part, wherein the mass ratio of the first component to the diamond is 1000: 11.
(5) Weighing 4g of the prepared composition, adding the composition into a steel mold, and performing cold press molding under the pressure of 400MPa for 1 minute to obtain a blank.
(6) And (4) putting the blank into a graphite mold, and sintering in vacuum. The sintering method comprises the following steps: the first stage, heating, raising the temperature to 450 ℃, and keeping the temperature for 1 hour; in the second stage, heating is continued, the temperature is increased to 900 ℃, and the temperature is kept for 2 hours; and a third stage: stopping heating, naturally cooling and demoulding.
Comparative example 3
(1) 97% of copper and 3% of zinc stearate are put into a mixer according to the mass percentage for mixing for 1 hour, and a fully mixed first component is obtained.
(2) And taking the first component out of the mixer, putting the first component into a glass dish, mixing the first component and the second component in a mass/volume ratio of 50g to 3ml, and uniformly stirring to obtain a third component. Wherein the second component is paraffin.
(3) And drying the third component at the temperature of 75 ℃ for 2 hours to obtain a dried third component.
(4) And mixing the dried third component and diamond particles with the granularity of 30-40 meshes in a mixer for 2 hours to obtain the composition for preparing the impregnated block wearing piece, wherein the mass ratio of the first component to the diamond is 1000: 11.
(5) Weighing 4g of the prepared composition, adding the composition into a steel mold, and carrying out cold press molding under the pressure of 400MPa for 1 minute to obtain a blank.
(6) And (4) putting the blank into a graphite mold, and sintering in vacuum. The sintering method comprises the following steps: the first stage, heating, raising the temperature to 450 ℃, and keeping the temperature for 1 hour; in the second stage, heating is continued, the temperature is raised to 900 ℃, and the temperature is kept for 2 hours; and a third stage: stopping heating, naturally cooling and demoulding.
And (3) performance testing:
and (3) testing the strength: the uniaxial compressive strength of the pregnant insert abrasion standard part is tested by a pressure tester, and the test result is shown in table 1.
And (3) hardness testing, namely testing the indentation hardness of the pregnant insert abrasion standard part by adopting a Rockwell hardness tester, wherein the measurement result is shown in table 1.
TABLE 1
| Examples | Compressive strength (MPa) | Hardness (HRC) |
| Example 1 | 32.1 | 34 |
| Example 2 | 25.5 | 31 |
| Example 3 | 28.6 | 33 |
| Comparative example 1 | 24.3 | 30 |
| Comparative example 2 | 20.4 | 26 |
| Comparative example 3 | 36.8 | 38 |
When the impregnated block wearing piece is used for carrying out rock abrasiveness test, the axial pressure borne by the impregnated block wearing piece is between 4 and 20MPa, and the compressive strength of the impregnated block wearing piece is more than 25MPa in order to ensure the normal use of the impregnated block wearing piece; when the pregnant insert wearing piece drills and grinds rocks, in order to ensure that diamond particles are exposed at the right time, the hardness of the pregnant insert wearing piece is 30 to 35 HRC. In summary, the composition and the process for preparing the impregnated block wear part can meet the requirements. The strength and hardness of the impregnated block wear part prepared in the comparative example 2 are low, and the requirement of a rock abrasiveness test cannot be met; the impregnated block wear part prepared in comparative example 3 has high strength and hardness, and the wear part is not easily worn by rocks during rock abrasiveness testing, so that the rock abrasiveness cannot be evaluated.
While the invention has been described with reference to specific embodiments, it will be appreciated by those skilled in the art that various changes can be made without departing from the true spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation, material, composition of matter, and method to the essential scope of the invention. All such modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (8)
1. A composition comprising a first component, a second component and diamond, wherein the first component comprises copper, tin, zinc, lead and zinc stearate and the second component is a paraffin wax and/or an epoxy resin;
100% by mass of the first component, 82% to 88% copper, 4% to 6% tin, 4% to 6% zinc, 2% to 3% lead and 2% to 3% zinc stearate;
the mass/volume ratio of the first combination and the second component is 20 g: 1ml to 20 g:3 ml;
the mass ratio of the first component to the diamond is 125: 1 to 200: 3.
2. the composition of claim 1, wherein the diamond has a particle size of 20 to 60 mesh.
3. A process for preparing the composition of claim 1 or 2, comprising the steps of:
1) fully mixing the copper, the tin, the zinc, the lead and the zinc stearate to obtain a first component;
2) fully mixing the first component and the second component to obtain a third component;
3) and thoroughly mixing the third component with the diamond to obtain the composition.
4. A method according to claim 3, characterized in that in step 1) the mixture is mixed in a blender for 1 to 1.5 hours.
5. The method according to claim 3 or 4, further comprising the step of drying the third component prior to step 3).
6. The method according to claim 5, wherein the temperature of the drying is 70 to 80 ℃ and the time of the drying is 1 to 2 hours.
7. An impregnated block wear part prepared from a composition according to claim 1 or 2 or prepared by a process according to any one of claims 3 to 6.
8. The impregnated block wear part of claim 7, wherein the composition of claim 1 or 2 or prepared by the method of any one of claims 3 to 6 is cold press formed and then vacuum sintered in two temperature gradient stages.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010645641.8A CN113913645B (en) | 2020-07-07 | 2020-07-07 | Composition and impregnated block wear part prepared from same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010645641.8A CN113913645B (en) | 2020-07-07 | 2020-07-07 | Composition and impregnated block wear part prepared from same |
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| US9540883B2 (en) * | 2006-11-30 | 2017-01-10 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools and methods of forming and using same |
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2020
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| US4439237A (en) * | 1978-06-27 | 1984-03-27 | Mitsui Mining & Smelting Co., Ltd. | Metallurgically bonded diamond-metal composite sintered materials and method of making same |
| US4362535A (en) * | 1979-10-09 | 1982-12-07 | Mitsui Mining & Smelting Co., Ltd. | Sintered metal bonded diamond abrasive articles |
| CN101195258A (en) * | 2007-12-29 | 2008-06-11 | 叶根培 | Granite cutting slice and production method thereof |
| CN103362445A (en) * | 2012-04-10 | 2013-10-23 | 吴庆华 | Technology for preparing diamond sandwich type hard alloy mine rock drilling blade |
| CN102733758A (en) * | 2012-07-06 | 2012-10-17 | 中煤科工集团西安研究院 | Impregnated block type diamond drill for coring |
| CN105773852A (en) * | 2016-03-08 | 2016-07-20 | 江苏科技大学 | Diamond-impregnated bit and manufacturing method thereof |
| CN110052612A (en) * | 2018-01-18 | 2019-07-26 | 中石化石油工程技术服务有限公司 | Impregnated diamond composite block |
| CN108274004A (en) * | 2018-03-02 | 2018-07-13 | 湖北小蚂蚁金刚石工具有限公司 | A kind of metal-base diamond compound tool bit and preparation method thereof and a kind of drill bit |
| CN108570590A (en) * | 2018-06-07 | 2018-09-25 | 株洲硬质合金集团有限公司 | A kind of impregnated diamond matrix, impregnated diamond and preparation method thereof |
| CN113804565A (en) * | 2020-06-11 | 2021-12-17 | 中国石油化工股份有限公司 | Method for measuring and evaluating abrasiveness of rock |
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