CN111852341A - High-load impact drill bit and preparation method thereof - Google Patents
High-load impact drill bit and preparation method thereof Download PDFInfo
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- CN111852341A CN111852341A CN202010730165.XA CN202010730165A CN111852341A CN 111852341 A CN111852341 A CN 111852341A CN 202010730165 A CN202010730165 A CN 202010730165A CN 111852341 A CN111852341 A CN 111852341A
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- 238000002360 preparation method Methods 0.000 title abstract description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 54
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 28
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims abstract description 17
- 230000001788 irregular Effects 0.000 claims abstract description 13
- 238000009527 percussion Methods 0.000 claims abstract description 12
- 239000010936 titanium Substances 0.000 claims abstract description 11
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 24
- 229910052802 copper Inorganic materials 0.000 claims description 24
- 239000010949 copper Substances 0.000 claims description 24
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 23
- 229910052718 tin Inorganic materials 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 19
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 18
- 229910052738 indium Inorganic materials 0.000 claims description 18
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 18
- 229910052741 iridium Inorganic materials 0.000 claims description 18
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 18
- 229910052726 zirconium Inorganic materials 0.000 claims description 18
- 238000007731 hot pressing Methods 0.000 claims description 15
- 238000001354 calcination Methods 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 238000005242 forging Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims 2
- 238000005553 drilling Methods 0.000 abstract description 12
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 3
- 241001391944 Commicarpus scandens Species 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- RCYJPSGNXVLIBO-UHFFFAOYSA-N sulfanylidenetitanium Chemical compound [S].[Ti] RCYJPSGNXVLIBO-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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Classifications
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- 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
- E21B10/36—Percussion drill bits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/04—Alloys containing less than 50% by weight of each constituent containing tin or lead
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention discloses a high-load percussion drill bit and a preparation method thereof, wherein the high-load percussion drill bit comprises a drill bit body, wherein the lower end of the drill bit body is provided with a drill bit, the upper end of the drill bit body is provided with a drill rod, a transition piece is arranged on the drill bit body between the drill bit and the drill rod, and a clamping groove is formed in the transition piece; the top end of the drill rod is provided with a connecting piece, and the connecting piece is formed by cutting the top end of the drill rod. According to the high-load impact drill bit and the preparation method thereof, the nickel element is added, so that the strength of the drill bit is improved, the carbon content is reduced, and the toughness and the plasticity of the drill bit are improved; by adding the titanium element, the probability of generating iron sulfide is reduced in the machining process, the hot brittleness of the drill bit is reduced, the titanium/carbon ratio is less than 2, and the strength and the toughness of the drill bit are effectively ensured; by adding the titanium element and the nickel element according to the parts, the strength and the toughness of the drill bit are improved, so that the drill bit can drill irregular drilling objects under high load.
Description
Technical Field
The invention relates to the technical field of percussion drill bits, in particular to a high-load percussion drill bit and a preparation method thereof.
Background
The percussion drill bit is a device for clamping on an impact electric drill and is used for drilling concrete foundations, walls, brick walls and granite so as to install fasteners such as expansion bolts and plastic expansion pipes in the air.
Along with the continuous increase of the drilling depth, the proportion of complex strata and difficult-to-drill strata is increased, such as high-porosity strata, carbonate strata and volcanic strata. When the drill meets the stratum, the drilling speed is slow, the drilling tool cannot reach the strength required by the stratum, the drilling tool is serious in failure, the stratum is irregular, the toughness of the drill bit cannot meet the requirement, and the drill bit is easy to break under the high-load condition when the drill meets the irregular high-strength stratum, so that the improvement of the toughness and the fracture resistance of the percussion drill bit is a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a high-load impact drill bit and a preparation method thereof, wherein the drill bit has high strength and toughness, and can be used for drilling irregular drilling objects under high load, so that the problem that the drill bit is easy to break when the high-strength irregular objects are drilled in the background technology is solved.
In order to achieve the purpose, the invention provides the following technical scheme: a high-load percussion drill bit comprises a drill bit body, wherein a drill bit is arranged at the lower end of the drill bit body, a drill rod is arranged at the upper end of the drill bit body, a transition piece is arranged on the drill bit body between the drill bit and the drill rod, and a clamping groove is formed in the transition piece; the top end of the drill rod is provided with a connecting piece, and the connecting piece is formed by cutting the top end of the drill rod.
Preferably, the length of the drill bit is half of the length of the drill bit body, and the length of the drill bit is 3/8 times the length of the drill bit body.
Preferably, the depth of the groove of the clamping groove is 1/5 which is the diameter of the transition piece.
Preferably, the high-load impact drill bit is prepared from the following raw materials in parts by weight: 35-45 parts of iron element, 15-23 parts of copper element, 20-28 parts of copper element, 5-10 parts of carbon element, 1-3 parts of indium element, 4-8 parts of titanium element, 6-12 parts of nickel element, 1-4 parts of zirconium element, 2-6 parts of iridium element and 6-14 parts of tin element.
Preferably, the high-load impact drill bit is prepared from the following raw materials in parts by weight: 40 parts of iron element, 21 parts of copper element, 7 parts of carbon element, 2 parts of indium element, 6 parts of titanium element, 9 parts of nickel element, 2 parts of zirconium element, 4 parts of iridium element and 9 parts of tin element.
The invention provides another technical scheme that: a preparation method of a high-load impact drill bit comprises the following steps:
s101: selecting the following materials in parts: iron, copper, carbon, indium, titanium, nickel, zirconium, iridium and tin;
s102: adding the iron element, the copper element and the tin element selected in the S101 into a melting furnace, continuously heating for 6-10 minutes to enable the iron element, the copper element and the tin element to be molten, then uniformly mixing the carbon element, the indium element, the titanium element, the nickel element, the zirconium element and the iridium element in parts, adding the mixture into a molten solution, and stirring for 15-20 minutes;
s103: adding the uniformly stirred high-temperature solution into a drill bit manufacturing mold, and then placing the drill bit manufacturing mold into water for condensation molding;
s104: taking out the original drill bit model formed in the drill bit manufacturing mold, forging the original drill bit model to obtain a columnar drill bit model with an irregular surface, and polishing the surface of the columnar drill bit model to obtain a formed columnar drill bit model;
s105: placing the formed columnar drill model obtained in the step S104 into a drill processing machine, processing the front end of a metal rod to obtain a drill edge, processing the rear end of the formed columnar drill model to obtain a drill rod, arranging a clamping groove on the formed columnar drill model between the drill edge and the drill rod to obtain a formed transition piece, processing the top end of the drill rod to obtain a formed connecting piece, and obtaining a drill with a formed structure after the processing;
s106: and (5) placing the drill bit with the structure formed in the step (S105) into a hot pressing sintering machine for calcination, taking out the drill bit with the structure formed after calcination, and placing the drill bit in cold water for cooling to obtain the high-load impact drill bit.
Preferably, the hot pressing temperature of the hot pressing sintering machine in the step S105 is controlled at 300-500 ℃ for 3-5 minutes.
Preferably, the original drill bit model formed by condensation in step S103 has a cylindrical shape.
Compared with the prior art, the invention has the beneficial effects that: according to the high-load impact drill bit and the preparation method thereof, the nickel element is added, so that the strength of the drill bit is improved, the carbon content is reduced, and the toughness and the plasticity of the drill bit are improved; by adding the titanium element, the probability of generating iron sulfide is reduced in the machining process, the hot brittleness of the drill bit is reduced, the titanium/carbon ratio is less than 2, and the strength and the toughness of the drill bit are effectively ensured; by adding the titanium element and the nickel element according to the part of the embodiment 1, the strength and the toughness of the drill bit are improved, so that the drill bit can drill irregular drilling objects under high load.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a process flow diagram of the present invention.
In the figure: 1. a drill bit body; 2. a drill edge; 3. a drill stem; 4. a transition piece; 5. a clamping groove; 6. a connecting member.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a high-load percussion drill comprises a drill body 1, a drill blade 2 is arranged at the lower end of the drill body 1, a drill rod 3 is arranged at the upper end of the drill body 1, a transition piece 4 is arranged on the drill body 1 between the drill blade 2 and the drill rod 3, and a clamping groove 5 is formed in the transition piece 4; the top end of the drill rod 3 is provided with a connecting piece 6, and the connecting piece 6 is formed by cutting the top end of the drill rod 3; the length of the drill edge 2 is half of the length of the drill bit body 1, and the length of the drill rod 3 is 3/8 of the length of the drill bit body 1; the depth of the groove of the snap-in groove 5 is 1/5 of the diameter of the transition piece 4.
Wherein: the high-load impact drill bit is prepared from the following raw materials in parts by weight: 35-45 parts of iron element, 15-23 parts of copper element, 5-10 parts of carbon element, 1-3 parts of indium element, 4-8 parts of titanium element, 6-12 parts of nickel element, 1-4 parts of zirconium element, 2-6 parts of iridium element and 6-14 parts of tin element.
Example 1:
the high-load impact drill bit is prepared from the following raw materials in parts by weight: 36 parts of iron element, 25 parts of copper element, 7 parts of carbon element, 2 parts of indium element, 6 parts of titanium element, 9 parts of nickel element, 2 parts of zirconium element, 4 parts of iridium element and 9 parts of tin element.
Referring to fig. 3, a method for manufacturing a high-load percussion drill includes the following steps:
the first step is as follows: selecting the following materials in parts: iron, copper, carbon, indium, titanium, nickel, zirconium, iridium and tin;
the second step is that: adding the iron element, the copper element and the tin element selected in the first step into a melting furnace, continuously heating for 6-10 minutes to enable the iron element, the copper element and the tin element to be molten, then uniformly mixing the carbon element, the indium element, the titanium element, the nickel element, the zirconium element and the iridium element in parts, adding the mixture into a molten solution, and stirring for 15-20 minutes;
the third step: adding the uniformly stirred high-temperature solution into a drill bit manufacturing mold, and then placing the drill bit manufacturing mold into water for condensation molding;
the fourth step: taking out the original drill bit model formed in the drill bit manufacturing mold, forging the original drill bit model to obtain a columnar drill bit model with an irregular surface, and polishing the surface of the columnar drill bit model to obtain a formed columnar drill bit model;
the fifth step: placing the formed columnar drill model obtained in the fourth step into a drill processing machine, processing the front end of a metal rod to obtain a drill blade 2, processing the rear end of the formed columnar drill model to obtain a drill rod 3, forming a clamping groove 5 in the formed columnar drill model between the drill blade 2 and the drill rod 3 to obtain a formed transition piece 4, processing the top end of the drill rod 3 to obtain a formed connecting piece 6, and obtaining a drill with a formed structure after the processing;
and a sixth step: and (3) placing the drill bit with the structure formed in the fifth step into a hot pressing sintering machine for calcination, controlling the hot pressing temperature of the hot pressing sintering machine to be 300-500 ℃, keeping the duration for 3-5 minutes, taking out the drill bit with the structure formed after calcination, and placing the drill bit in cold water for cooling to obtain the high-load percussion drill bit, which is marked as a drill bit A.
Example 2:
the high-load impact drill bit is prepared from the following raw materials in parts by weight: 40 parts of iron element, 30 parts of copper element, 7 parts of carbon element, 2 parts of indium element, 6 parts of titanium element, 2 parts of zirconium element, 4 parts of iridium element and 9 parts of tin element.
A preparation method of a high-load impact drill bit comprises the following steps:
the first step is as follows: selecting the following materials in parts: iron, copper, carbon, indium, titanium, nickel, zirconium, iridium and tin;
the second step is that: adding the iron element, the copper element and the tin element selected in the first step into a melting furnace, continuously heating for 6-10 minutes to enable the iron element, the copper element and the tin element to be molten, then uniformly mixing the carbon element, the indium element, the titanium element, the nickel element, the zirconium element and the iridium element in parts, adding the mixture into a molten solution, and stirring for 15-20 minutes;
the third step: adding the uniformly stirred high-temperature solution into a drill bit manufacturing mold, and then placing the drill bit manufacturing mold into water for condensation molding;
the fourth step: taking out the original drill bit model formed in the drill bit manufacturing mold, forging the original drill bit model to obtain a columnar drill bit model with an irregular surface, and polishing the surface of the columnar drill bit model to obtain a formed columnar drill bit model;
the fifth step: placing the formed columnar drill model obtained in the fourth step into a drill processing machine, processing the front end of a metal rod to obtain a drill blade 2, processing the rear end of the formed columnar drill model to obtain a drill rod 3, forming a clamping groove 5 in the formed columnar drill model between the drill blade 2 and the drill rod 3 to obtain a formed transition piece 4, processing the top end of the drill rod 3 to obtain a formed connecting piece 6, and obtaining a drill with a formed structure after the processing;
and a sixth step: and (4) placing the drill bit with the structure formed in the fifth step into a hot pressing sintering machine for calcination, controlling the hot pressing temperature of the hot pressing sintering machine to be 300-500 ℃, keeping the duration for 3-5 minutes, taking out the drill bit with the structure formed after calcination, and placing the drill bit in cold water for cooling to obtain the high-load impact drill bit, which is marked as a drill bit B.
Example 3:
the high-load impact drill bit is prepared from the following raw materials in parts by weight: 42 parts of iron element, 27 parts of copper element, 5 parts of carbon element, 2 parts of indium element, 9 parts of nickel element, 2 parts of zirconium element, 4 parts of iridium element and 9 parts of tin element.
A preparation method of a high-load impact drill bit comprises the following steps:
the first step is as follows: selecting the following materials in parts: iron, copper, carbon, indium, titanium, nickel, zirconium, iridium and tin;
the second step is that: adding the iron element, the copper element and the tin element selected in the first step into a melting furnace, continuously heating for 6-10 minutes to enable the iron element, the copper element and the tin element to be molten, then uniformly mixing the carbon element, the indium element, the titanium element, the nickel element, the zirconium element and the iridium element in parts, adding the mixture into a molten solution, and stirring for 15-20 minutes;
the third step: adding the uniformly stirred high-temperature solution into a drill bit manufacturing mold, and then placing the drill bit manufacturing mold into water for condensation molding;
the fourth step: taking out the original drill bit model formed in the drill bit manufacturing mold, forging the original drill bit model to obtain a columnar drill bit model with an irregular surface, and polishing the surface of the columnar drill bit model to obtain a formed columnar drill bit model;
the fifth step: placing the formed columnar drill model obtained in the fourth step into a drill processing machine, processing the front end of a metal rod to obtain a drill blade 2, processing the rear end of the formed columnar drill model to obtain a drill rod 3, forming a clamping groove 5 in the formed columnar drill model between the drill blade 2 and the drill rod 3 to obtain a formed transition piece 4, processing the top end of the drill rod 3 to obtain a formed connecting piece 6, and obtaining a drill with a formed structure after the processing;
and a sixth step: and (4) placing the drill bit with the structure formed in the fifth step into a hot pressing sintering machine for calcination, controlling the hot pressing temperature of the hot pressing sintering machine to be 300-500 ℃, keeping the duration for 3-5 minutes, taking out the drill bit with the structure formed after calcination, and placing the drill bit in cold water for cooling to obtain the high-load impact drill bit, which is marked as the drill bit C.
The performance pairs for bit A, bit B and bit C are shown in the table below
| Drill A | Drill B | Drill bit C | |
| Strength MPa | 1850 | 1620 | 1560 |
| Toughness MJ/m | 860 | 620 | 680 |
Comparing example 1 with example 2, it is known that when no nickel element is added in example 2, the toughness of the high load impact drill manufactured therefrom is remarkably reduced and is broken when used; comparing example 1 with example 3, it can be seen that when the titanium element is not added and the nickel element is added in example 2, the carbon content is obviously reduced, and the strength and toughness of the drill bit are obviously reduced; therefore, as can be seen from comparative examples 1 to 3, both nickel and titanium have great influence on the toughness of the drill, the drill prepared in example 1 has high strength and good toughness, and is not easy to break under high load, so that the requirement of drilling irregular drilling objects under high load can be met.
According to the high-load impact drill bit and the preparation method thereof, the nickel element is added, so that the diffusion rate of each element is reduced, the hardenability is improved, the ferrite is strengthened, the pearlite is increased, the strength of the drill bit is improved, the carbon content is reduced, and the toughness and the plasticity of the drill bit are improved; by adding titanium element, titanium sulfide is preferentially generated, the probability of generating iron sulfide is reduced, the hot brittleness of the drill bit is reduced, titanide formed by Ti and C has strong binding capacity, is extremely stable and is not easy to decompose, the strength of the drill bit is effectively guaranteed, the titanium/carbon ratio is less than 2, and the strength and the toughness of the drill bit are effectively guaranteed.
In conclusion, the high-load impact drill bit and the preparation method thereof provided by the invention have the advantages that the nickel element is added, so that the strength of the drill bit is improved, the carbon content is reduced, and the toughness and the plasticity of the drill bit are improved; by adding the titanium element, the probability of generating iron sulfide is reduced in the machining process, the hot brittleness of the drill bit is reduced, the titanium/carbon ratio is less than 2, and the strength and the toughness of the drill bit are effectively ensured; by adding the titanium element and the nickel element according to the part of the embodiment 1, the strength and the toughness of the drill bit are improved, so that the drill bit can drill irregular drilling objects under high load.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A high-load percussion drill bit is characterized by comprising a drill bit body (1), wherein a drill blade (2) is arranged at the lower end of the drill bit body (1), a drill rod (3) is arranged at the upper end of the drill bit body (1), a transition piece (4) is arranged on the drill bit body (1) between the drill blade (2) and the drill rod (3), and a clamping groove (5) is formed in the transition piece (4); the top end of the drill rod (3) is provided with a connecting piece (6), and the connecting piece (6) is formed by cutting the top end of the drill rod (3).
2. Method for the production of a high-load percussion drill bit according to claim 1, characterized in that the length of the cutting edge (2) is half the length of the bit body (1) and the length of the drill rod (3) is 3/8 of the length of the bit body (1).
3. The method for preparing a high-load impact drill bit according to claim 1, wherein the depth of the groove of the snap-in groove (5) is 1/5 times the diameter of the transition piece (4).
4. A high-load impact drill bit as defined in claim 1, wherein: the compound is prepared from the following raw materials in parts by weight: 35-45 parts of iron element, 15-23 parts of copper element, 5-10 parts of carbon element, 1-3 parts of indium element, 4-8 parts of titanium element, 6-12 parts of nickel element, 1-4 parts of zirconium element, 2-6 parts of iridium element and 6-14 parts of tin element.
5. A high-load impact drill bit as defined in claim 1, wherein: the compound is prepared from the following raw materials in parts by weight: 40 parts of iron element, 21 parts of copper element, 7 parts of carbon element, 2 parts of indium element, 6 parts of titanium element, 9 parts of nickel element, 2 parts of zirconium element, 4 parts of iridium element and 9 parts of tin element.
6. A method of manufacturing a high-load impact drill bit according to any one of claims 1 to 5, characterized by comprising the steps of:
s101: selecting the following materials in parts: iron, copper, carbon, indium, titanium, nickel, zirconium, iridium and tin;
s102: adding the iron element, the copper element and the tin element selected in the S101 into a melting furnace, continuously heating for 6-10 minutes to enable the iron element, the copper element and the tin element to be molten, then uniformly mixing the carbon element, the indium element, the titanium element, the nickel element, the zirconium element and the iridium element in parts, adding the mixture into a molten solution, and stirring for 15-20 minutes;
s103: adding the uniformly stirred high-temperature solution into a drill bit manufacturing mold, and then placing the drill bit manufacturing mold into water for condensation molding;
s104: taking out the original drill bit model formed in the drill bit manufacturing mold, forging the original drill bit model to obtain a columnar drill bit model with an irregular surface, and polishing the surface of the columnar drill bit model to obtain a formed columnar drill bit model;
s105: placing the formed columnar drill model obtained in the S104 into a drill processing machine, processing the front end of a metal rod to obtain a drill blade (2), then processing the rear end of the formed columnar drill model to obtain a drill rod (3), then arranging a clamping groove (5) on the formed columnar drill model between the drill blade (2) and the drill rod (3) to obtain a formed transition piece (4), finally processing the top end of the drill rod (3) to obtain a formed connecting piece (6), and obtaining a drill with a formed structure after the processing;
s106: and (5) placing the drill bit with the structure formed in the step (S105) into a hot pressing sintering machine for calcination, taking out the drill bit with the structure formed after calcination, and placing the drill bit in cold water for cooling to obtain the high-load impact drill bit.
7. The method as claimed in claim 6, wherein the hot pressing temperature of the hot pressing sintering machine in step S105 is controlled to be 300-500 ℃ for 3-5 minutes.
8. The method of manufacturing a high-load impact drill according to claim 6, wherein the original drill model formed by condensation in step S103 is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730165.XA CN111852341B (en) | 2020-07-27 | 2020-07-27 | High-load impact drill bit and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730165.XA CN111852341B (en) | 2020-07-27 | 2020-07-27 | High-load impact drill bit and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111852341A true CN111852341A (en) | 2020-10-30 |
| CN111852341B CN111852341B (en) | 2022-04-22 |
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| CN202010730165.XA Active CN111852341B (en) | 2020-07-27 | 2020-07-27 | High-load impact drill bit and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204221743U (en) * | 2014-11-12 | 2015-03-25 | 黎应杰 | A kind of percussion drill |
| CN104858842A (en) * | 2015-05-27 | 2015-08-26 | 启东市吕四科技创业中心有限公司 | Hard alloy reaming drill bit |
| CN105950948A (en) * | 2016-06-24 | 2016-09-21 | 江阴市宝能特种钢线有限公司 | High-strength diamond wire and production method thereof |
| CN106086659A (en) * | 2016-06-24 | 2016-11-09 | 江阴市宝能特种钢线有限公司 | A kind of high-strength alloy steel wire and production method thereof |
| CN110408828A (en) * | 2019-07-19 | 2019-11-05 | 马鞍山市华东超硬材料有限责任公司 | A kind of synthetic diamond core bit material and its drill bit, production technology |
-
2020
- 2020-07-27 CN CN202010730165.XA patent/CN111852341B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204221743U (en) * | 2014-11-12 | 2015-03-25 | 黎应杰 | A kind of percussion drill |
| CN104858842A (en) * | 2015-05-27 | 2015-08-26 | 启东市吕四科技创业中心有限公司 | Hard alloy reaming drill bit |
| CN105950948A (en) * | 2016-06-24 | 2016-09-21 | 江阴市宝能特种钢线有限公司 | High-strength diamond wire and production method thereof |
| CN106086659A (en) * | 2016-06-24 | 2016-11-09 | 江阴市宝能特种钢线有限公司 | A kind of high-strength alloy steel wire and production method thereof |
| CN110408828A (en) * | 2019-07-19 | 2019-11-05 | 马鞍山市华东超硬材料有限责任公司 | A kind of synthetic diamond core bit material and its drill bit, production technology |
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| CN111852341B (en) | 2022-04-22 |
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