CN113137183A - Production method of sharp hole drill - Google Patents

Production method of sharp hole drill Download PDF

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Publication number
CN113137183A
CN113137183A CN202110503370.7A CN202110503370A CN113137183A CN 113137183 A CN113137183 A CN 113137183A CN 202110503370 A CN202110503370 A CN 202110503370A CN 113137183 A CN113137183 A CN 113137183A
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Prior art keywords
hole drill
diamond
substrate
magnet
sharp
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CN202110503370.7A
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Chinese (zh)
Inventor
庄政伟
庄敏伟
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Jiangsu Funlin Super Hard Tools Co ltd
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Jiangsu Funlin Super Hard Tools Co ltd
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Priority to CN202110503370.7A priority Critical patent/CN113137183A/en
Publication of CN113137183A publication Critical patent/CN113137183A/en
Pending legal-status Critical Current

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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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/008—Soldering within a furnace
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/25—Diamond
    • C01B32/28—After-treatment, e.g. purification, irradiation, separation or recovery
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/18—Pretreatment of the material to be coated
    • C23C18/1851—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material
    • C23C18/1872—Pretreatment of the material to be coated of surfaces of non-metallic or semiconducting in organic material by chemical pretreatment
    • C23C18/1886—Multistep pretreatment
    • C23C18/1893—Multistep pretreatment with use of organic or inorganic compounds other than metals, first
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
    • C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
    • C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

The invention discloses a production method of a sharp hole drill, which comprises the following steps: the first step is as follows: diamond surface treatment; the second step is that: feeding a diamond magnet sensing body; firstly, coating glue solution on the outer wall of the bottom of a hole drill substrate, putting a powdered diamond magnet sensor into an open tank and locating below the hole drill substrate, and placing a magnet at the top end of the hole drill substrate to enable the hole drill substrate to generate magnetism; then, the bottom of the hole drill substrate is placed above the diamond magnet sensor, so that the diamond magnet sensor is adsorbed on the outer wall of the hole drill substrate, and the magnet on the hole drill substrate is removed; the third step: brazing: thereby obtaining a sharp hole drill; the invention greatly improves the strength and the service life of the sharp hole drill during drilling; the problem of among the prior art, the diamond abrasive material of individual layer's brazing hole drill is uneven, can not make the edges and corners outwards arrange in order, leads to the abrasive material rate of utilization high inadequately, influences the life of its hole drill is solved.

Description

Production method of sharp hole drill
Technical Field
The invention belongs to the technical field of hole drills, and particularly relates to a production method of a sharp hole drill.
Background
The main functions of the drill bit are to break rock, form a borehole, and drill hard objects.
In the prior art, diamond abrasive materials of single-layer brazing hole drills are uneven, edges and corners cannot be orderly arranged outwards, so that the abrasive material utilization rate is not high enough, and the service life of the hole drills is influenced.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, diamond grinding materials of a single-layer brazing hole drill are uneven, edges and corners cannot be orderly arranged outwards, so that the use rate of the grinding materials is not high enough, and the service life of the hole drill is influenced, and provides a production method of a sharp hole drill.
The purpose of the invention can be realized by the following technical scheme:
a method of producing a sharp bore drill comprising the steps of:
the first step is as follows: diamond surface treatment; cleaning the diamond; sensitizing treatment; activating treatment; chemical plating: adding the activated diamond particles into chemical plating solution, stirring for 2h at the temperature of 50-70 ℃, taking out and drying for 2h at the temperature of 100 ℃; obtaining a diamond magnet sensor;
the second step is that: feeding a diamond magnet sensing body; firstly, coating glue solution on the outer wall of the bottom of a hole drill substrate, putting a powdered diamond magnet sensor into an open tank and locating below the hole drill substrate, and placing a magnet at the top end of the hole drill substrate to enable the hole drill substrate to generate magnetism; then, the bottom of the hole drill substrate is placed above the diamond magnet sensor, so that the diamond magnet sensor is adsorbed on the outer wall of the hole drill substrate, and the magnet on the hole drill substrate is removed;
the third step: brazing: and adding the solder to the hole drill substrate, distributing the solder at the gap of the diamond magnet sensor, and then transferring the hole drill substrate to a vacuum brazing furnace for brazing, thereby obtaining the sharp hole drill.
Preferably, the diamond is cleaned by adding diamond particles into a nitric acid solution with the mass fraction of 1% and stewing for 10 min.
Preferably, the sensitization treatment is to add the cleaned diamond particles into a mixed solution of stannous chloride with the mass fraction of 10-20g/L and hydrochloric acid with the volume fraction of 10-40mL/L, and stir for 1-5min at room temperature.
Preferably, the activation treatment is to add the diamond particles after the sensitization treatment into a mixed solution of palladium chloride with the mass fraction of 0.25g/L and hydrochloric acid with the volume fraction of 2-5mL/L, and stir for 1-3min at room temperature.
Preferably, 1L of the electroless plating solution consists of the following raw materials: 25-35g/L of nickel sulfate hexahydrate, 30-40g/L of sodium hypophosphite, 15-20g/L of cobalt sulfate, 5-10g of acetic acid, 5-10g of lactic acid, 0.01-0.05g/L of saccharin and 0.01-0.05g of sodium dodecyl sulfate.
Preferably, the glue solution is acrylic glue.
Preferably, the grain size of the powdered diamond magnetosensitive body is 40 meshes, and the grain size of the solder is 50 meshes.
Preferably, the solder consists of 5-10% of nickel powder, 3.5-10% of nickel powder and the balance of chromium powder.
Preferably, the brazing temperature is 1050-.
Compared with the prior art, the invention has the beneficial effects that: according to the sharp hole drill prepared by the diamond surface treatment, diamond magnet sensing body feeding and brazing processes, the edge angle of the diamond faces outwards, namely the side wall with the large area of the diamond magnet sensing body is adsorbed on the hole drill base body, and the tip part points to the direction far away from the side wall of the hole drill base body, so that the strength of the sharp hole drill during drilling is greatly improved, and the service life of the sharp hole drill is greatly prolonged; the problem of among the prior art, the diamond abrasive material of individual layer's brazing hole drill is uneven, can not make the edges and corners outwards arrange in order, leads to the abrasive material rate of utilization high inadequately, influences the life of its hole drill is solved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of a sharp point drill according to the present invention.
Fig. 2 is a schematic structural diagram of a feeding mechanism in the invention.
FIG. 3 is a schematic perspective view of the connection between the base plate and the slide plate according to the present invention.
In the figure: 1. a diamond hole drill body; 2. drilling a substrate; 3. a grinding material block; 4. mounting holes; 5. bolt holes; 6. chip removal holes; 12. a substrate; 13. a motor; 14. a drive pulley; 15. a driven pulley; 16. a top plate; 17. a screw rod; 18. a first sleeve; 19. a second sleeve; 20. mounting a plate; 21. a limiting rod; 22. a connecting rod; 23. a magnet plate; 24. a chute; 25. a slide shaft; 26. a splint; 27. a slide board.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
Example 1
A method of producing a sharp bore drill comprising the steps of:
the first step is as follows: diamond surface treatment; cleaning diamond, adding diamond particles into a nitric acid solution with the mass fraction of 1%, and cooking for 10 min; sensitizing treatment, namely adding the cleaned diamond particles into a mixed solution of stannous chloride with the mass fraction of 10-g/L and hydrochloric acid with the volume fraction of 10-mL/L, and stirring for 1-5min at room temperature for sensitizing treatment; activating treatment, namely adding the sensitized diamond particles into a mixed solution of palladium chloride with the mass fraction of 0.25g/L and hydrochloric acid with the volume fraction of 2mL/L, and stirring for 1min at room temperature to perform activating treatment; chemical plating: adding the activated diamond particles into chemical plating solution, stirring for 2h at the temperature of 50 ℃, taking out and drying for 2h at the temperature of 100 ℃; obtaining a diamond magnet sensor;
1L of the electroless plating solution consists of the following raw materials: 25g/L of nickel sulfate hexahydrate, 30g/L of sodium hypophosphite, 15g/L of cobalt sulfate, 5g of acetic acid, 50g of lactic acid, 0.01g/L of saccharin and 0.01g of sodium dodecyl sulfate; saccharin is added to enable the surface of the plating layer to be smooth, and sodium dodecyl sulfate is added to enable the plating layer to be good in dispersibility and uniform in plating;
the second step is that: feeding a diamond magnet sensing body; firstly, coating glue solution on the outer wall of the bottom of a hole drill substrate, putting a powdered diamond magnet sensor into an open tank and locating below the hole drill substrate, and placing a magnet at the top end of the hole drill substrate to enable the hole drill substrate to generate magnetism; then, the bottom of the hole drill substrate is placed above the diamond magnet sensor, so that the diamond magnet sensor is adsorbed on the outer wall of the hole drill substrate, and the magnet on the hole drill substrate is removed;
in the adsorption process, the diamond magnet sensing body is adsorbed on the outer wall of the bottom surface of the hole drill base body, under the magnetic attraction and under the influence of the shape of the diamond magnet sensing body, the side wall with large area of the diamond magnet sensing body is adsorbed on the hole drill base body, the tip part can point to the direction of the side wall far away from the hole drill base body, after the adsorption is finished, the hole drill base body is demagnetized, and the diamond magnet sensing body which is not located in the glue solution layer automatically drops
The third step: brazing: adding solder to a hole drill substrate, distributing the solder at the gap of the diamond magnet sensor, and then moving the substrate to a vacuum brazing furnace for brazing, thereby obtaining a sharp hole drill; the particle size of the powdery diamond magnet is 40 meshes, the particle size of the solder is 50 meshes, and the solder consists of 5 mass percent of nickel powder, 3.5 mass percent of nickel powder and the balance of chromium powder; the brazing temperature is 1050 ℃, and the brazing time is 30 min.
Example 2
A method of producing a sharp bore drill comprising the steps of:
the first step is as follows: diamond surface treatment; cleaning diamond, adding diamond particles into a nitric acid solution with the mass fraction of 1%, and cooking for 10 min; sensitizing treatment, namely adding the cleaned diamond particles into a mixed solution of stannous chloride with the mass fraction of 15g/L and hydrochloric acid with the volume fraction of 25mL/L, and stirring for 3min at room temperature for sensitizing treatment; activating treatment, namely adding the sensitized diamond particles into a mixed solution of palladium chloride with the mass fraction of 0.25g/L and hydrochloric acid with the volume fraction of 3mL/L, and stirring for 2min at room temperature for activating treatment; chemical plating: adding the activated diamond particles into chemical plating solution, stirring for 2h at the temperature of 60 ℃, taking out and drying for 2h at the temperature of 100 ℃; obtaining a diamond magnet sensor;
1L of the electroless plating solution consists of the following raw materials: 30g/L of nickel sulfate hexahydrate, 35g/L of sodium hypophosphite, 18g/L of cobalt sulfate, 8g of acetic acid, 80g of lactic acid, 0.03g/L of saccharin and 0.03g of sodium dodecyl sulfate;
the second step is that: feeding a diamond magnet sensing body; firstly, coating glue solution on the outer wall of the bottom of a hole drill substrate, putting a powdered diamond magnet sensor into an open tank and locating below the hole drill substrate, and placing a magnet at the top end of the hole drill substrate to enable the hole drill substrate to generate magnetism; then, the bottom of the hole drill substrate is placed above the diamond magnet sensor, so that the diamond magnet sensor is adsorbed on the outer wall of the hole drill substrate, and the magnet on the hole drill substrate is removed;
in the adsorption process, the diamond magnet sensing body is adsorbed on the outer wall of the bottom surface of the hole drill base body, under the magnetic attraction and under the influence of the shape of the diamond magnet sensing body, the side wall with large area of the diamond magnet sensing body is adsorbed on the hole drill base body, the tip part can point to the direction of the side wall far away from the hole drill base body, after the adsorption is finished, the hole drill base body is demagnetized, and the diamond magnet sensing body which is not located in the glue solution layer automatically drops
The third step: brazing: adding solder to a hole drill substrate, distributing the solder at the gap of the diamond magnet sensor, and then moving the substrate to a vacuum brazing furnace for brazing, thereby obtaining a sharp hole drill; the particle size of the powdery diamond magnet is 40 meshes, the particle size of the solder is 50 meshes, and the solder consists of 7 mass percent of nickel powder, 6 mass percent of nickel powder and the balance of chromium powder; the brazing temperature is 1065 ℃, and the brazing time is 30 min.
Example 3
A method of producing a sharp bore drill comprising the steps of:
the first step is as follows: diamond surface treatment; cleaning diamond, adding diamond particles into a nitric acid solution with the mass fraction of 1%, and cooking for 10 min; sensitizing treatment, namely adding the cleaned diamond particles into a mixed solution of stannous chloride with the mass fraction of 20g/L and hydrochloric acid with the volume fraction of 40mL/L, and stirring for 5min at room temperature for sensitizing treatment; activating treatment, namely adding the sensitized diamond particles into a mixed solution of palladium chloride with the mass fraction of 0.25g/L and hydrochloric acid with the volume fraction of 5mL/L, and stirring for 3min at room temperature to perform activating treatment; chemical plating: adding the activated diamond particles into chemical plating solution, stirring for 2h at the temperature of 70 ℃, taking out and drying for 2h at the temperature of 100 ℃; obtaining a diamond magnet sensor;
1L of the electroless plating solution consists of the following raw materials: 35g/L of nickel sulfate hexahydrate, 40g/L of sodium hypophosphite, 20g/L of cobalt sulfate, 10g of acetic acid, 10g of lactic acid, 0.05g/L of saccharin and 0.05g of sodium dodecyl sulfate;
the second step is that: feeding a diamond magnet sensing body; firstly, coating glue solution on the outer wall of the bottom of a hole drill substrate, putting a powdered diamond magnet sensor into an open tank and locating below the hole drill substrate, and placing a magnet at the top end of the hole drill substrate to enable the hole drill substrate to generate magnetism; then, the bottom of the hole drill substrate is placed above the diamond magnet sensor, so that the diamond magnet sensor is adsorbed on the outer wall of the hole drill substrate, and the magnet on the hole drill substrate is removed;
in the adsorption process, the diamond magnet sensing body is adsorbed on the outer wall of the bottom surface of the hole drill base body, under the magnetic attraction and under the influence of the shape of the diamond magnet sensing body, the side wall with large area of the diamond magnet sensing body is adsorbed on the hole drill base body, the tip part can point to the direction of the side wall far away from the hole drill base body, after the adsorption is finished, the hole drill base body is demagnetized, and the diamond magnet sensing body which is not located in the glue solution layer automatically drops
The third step: brazing: adding solder to a hole drill substrate, distributing the solder at the gap of the diamond magnet sensor, and then moving the substrate to a vacuum brazing furnace for brazing, thereby obtaining a sharp hole drill; the particle size of the powdery diamond magnet is 40 meshes, the particle size of the solder is 50 meshes, and the solder consists of 10 mass percent of nickel powder, 10 mass percent of nickel powder and the balance of chromium powder; the brazing temperature is 1080 ℃ and the brazing time is 30 min.
Example 4
Referring to fig. 2-3, the second step is performed by a feeding mechanism, which includes a base plate 12, a motor 13, a driving pulley 14, a driven pulley 15, a top plate 16, a lead screw 17, a first sleeve 18, a second sleeve 19, a mounting plate 20, a limiting rod 21, an elastic rod 22, a magnet plate 23, a sliding groove 24, a sliding shaft 25, a clamping plate 26, and a sliding plate 27; a motor 13 is arranged on one side of a base plate 12, the output end of the motor 13 is connected with a driving belt pulley 14, the driving belt pulley 14 is in transmission connection with a driven belt pulley 15 through a belt, the driven belt pulley 15 is sleeved on a screw rod 17, the screw rod 17 is rotatably arranged between the base plate 12 and a top plate 16, the top plate 16 is arranged above the base plate 12, opposite threads are arranged on the upper side and the lower side of the screw rod 17 and are respectively sleeved with a first sleeve 18 and a second sleeve 19, the second sleeve is connected with a sliding plate 27, the sliding plate 27 is slidably arranged on the front surface of the base plate 12 and moves up and down along the base plate 12, a plurality of groups of sliding grooves 24 are symmetrically arranged on the sliding plate 27, the sliding grooves 24 are obliquely arranged, a sliding shaft 25 is positioned in the sliding grooves 24 and moves along the sliding grooves 24, the sliding shaft 25 is arranged on a clamping plate 26, the clamping plate 26 is in a U-shaped structure, the vertical part on one side of the clamping plate 26 is arranged on the front surface of the base plate 12 and moves horizontally along the base plate 12, the vertical part at the other side of the clamping plate 26 is positioned right in front of the sliding plate 27; the vertical part on the other side of the clamping plate 26 is used for clamping and fixing the hole drill;
the first sleeve 18 is connected with a mounting plate 20, two sides of the mounting plate 20 are provided with limiting rods 21 in a sliding manner, the limiting rods 21 are mounted between the base plate 12 and the top plate 16, the limiting rods 21 play a limiting sliding role in the up-and-down movement of the mounting plate 20, and the bottom surface of the mounting plate 20 is connected with a magnet plate 23 through an elastic rod 22; the magnet plate 23 is used for magnetizing the hole drill;
when the abrasive material block is loaded in the second step, firstly, a plurality of groups of hole drills are placed in the gaps of a plurality of groups of clamping plates 26, then, the motor 13 is started to work, the screw rod 17 is driven to rotate through the driving belt pulley 14 and the driven belt pulley 15, the screw rods 27 are driven to move upwards due to the fact that the threads of the upper side and the lower side of the screw rod 17 are opposite, the clamping plates 26 are driven to move close to each other through the sliding shaft 25 along the sliding groove 24, the hole drills are clamped and fixed, meanwhile, the mounting plate 20 can move downwards due to the screw rods 17, the mounting plate 20 drives the magnet plate 23 to move downwards through the elastic rods 22 and is located at the top ends of the hole drills, and therefore the hole drills are magnetized; the feeding mechanism can feed a plurality of groups of hole drills simultaneously, simultaneously realizes the convenient clamping of the plurality of groups of hole drills, and magnetizes the hole drills through the magnet plate 23 in the clamping and fixing process, thereby greatly improving the working efficiency of the hole drills during feeding of the diamond hole drills.
Example 5
Referring to fig. 1, a diamond drill body 1 includes a drill base 2, a diamond magnet 3, and a connector; a connector is arranged at the center of the top of the drilling base body 2;
a diamond induction magnet 3 is arranged on the outer wall of the bottom surface of the drilling substrate 2; the diamond magnet sensing bodies 3 are fixed on the outer wall of the drilling base body 2 in a single-layer mode, and the diamond magnet sensing bodies 3 can be uniformly distributed on the outer wall of the sharp hole drill 1, so that the sharp hole drill 1 has good wear resistance.
The top surface of connector is provided with mounting hole 4, and the middle part of connector runs through and is provided with bolt hole 5, and mounting hole 4 is located bolt hole 5 directly over, through mounting hole 4 and bolt hole 5, can conveniently install diamond hole drill body 1 at the output end department of rig.
The side wall of the drilling base body 2 is provided with the chip removal holes 6, and the chip removal holes 6 are arranged, so that the chips generated by the diamond hole drilling body 1 can be automatically discharged from the chip removal holes 6 during drilling.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (9)

1. A production method of a sharp hole drill is characterized by comprising the following steps: the method comprises the following steps:
the first step is as follows: diamond surface treatment; cleaning the diamond; sensitizing treatment; activating treatment; chemical plating: adding the activated diamond particles into chemical plating solution, stirring for 2h at the temperature of 50-70 ℃, taking out and drying for 2h at the temperature of 100 ℃; obtaining a diamond magnet sensor;
the second step is that: feeding a diamond magnet sensing body; firstly, coating glue solution on the outer wall of the bottom of a hole drill substrate, putting a powdered diamond magnet sensor into an open tank and locating below the hole drill substrate, and placing a magnet at the top end of the hole drill substrate to enable the hole drill substrate to generate magnetism; then, the bottom of the hole drill substrate is placed above the diamond magnet sensor, so that the diamond magnet sensor is adsorbed on the outer wall of the hole drill substrate, and the magnet on the hole drill substrate is removed;
the third step: brazing: and adding the solder to the hole drill substrate, distributing the solder at the gap of the diamond magnet sensor, and then transferring the hole drill substrate to a vacuum brazing furnace for brazing, thereby obtaining the sharp hole drill.
2. The method for producing a sharp-edged drill as claimed in claim 1, wherein the diamond cleaning is carried out by adding diamond particles to a 1% nitric acid solution by mass and steaming for 10 min.
3. The method for producing the sharp-edged hole drill according to claim 1, wherein the sensitization treatment comprises adding the cleaned diamond particles into a mixed solution of stannous chloride with a mass fraction of 10-20g/L and hydrochloric acid with a volume fraction of 10-40mL/L, and stirring for 1-5min at room temperature.
4. The method for producing a sharp-edged drill as claimed in claim 1, wherein the activation treatment is carried out by adding the diamond particles after the sensitization treatment to a mixed solution of palladium chloride with a mass fraction of 0.25g/L and hydrochloric acid with a volume fraction of 2-5mL/L, and stirring at room temperature for 1-3 min.
5. The method of claim 1, wherein the electroless plating solution of 1L comprises the following raw materials: 25-35g/L of nickel sulfate hexahydrate, 30-40g/L of sodium hypophosphite, 15-20g/L of cobalt sulfate, 5-10g of acetic acid, 5-10g of lactic acid, 0.01-0.05g/L of saccharin and 0.01-0.05g of sodium dodecyl sulfate.
6. The method of claim 1, wherein the glue solution is an acrylic glue.
7. The method of claim 1, wherein the powdered diamond magnetosensitive material has a particle size of 40 mesh and the solder has a particle size of 50 mesh.
8. The method of claim 1, wherein the solder comprises nickel powder 5-10 wt%, nickel powder 3.5-10 wt%, and chromium powder in balance.
9. The method for producing a sharp-edged drill as claimed in claim 1, wherein the brazing temperature is 1050-.
CN202110503370.7A 2021-05-10 2021-05-10 Production method of sharp hole drill Pending CN113137183A (en)

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