CN108504823A - Improve the processing method and high life diamond bit of geological prospecting diamond bit service life - Google Patents
Improve the processing method and high life diamond bit of geological prospecting diamond bit service life Download PDFInfo
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- CN108504823A CN108504823A CN201810297439.3A CN201810297439A CN108504823A CN 108504823 A CN108504823 A CN 108504823A CN 201810297439 A CN201810297439 A CN 201810297439A CN 108504823 A CN108504823 A CN 108504823A
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- electrode
- diamond bit
- bit
- diamond
- pulse
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/04—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of processing methods improving geological prospecting diamond bit service life and high life diamond bit, this method to include：(1) diamond bit is fixed between the first electrode and the second electrode, the first electrode has the first permanent magnet, the second electrode has the second permanent magnet, and first permanent magnet and the second permanent magnet magnetic polarity are on the contrary, the diamond bit is placed in the steady magnetic field that the first electrode and the second electrode are formed；(2) positive and negative anodes of the pulse power are connected with the first electrode and the second electrode respectively, and the pulse power applies pulse current in a manner of electric pulse and interval to the first electrode and the second electrode, to obtain high life diamond bit.This method is using steady magnetic field with pulsed magnetic field action in the method for diamond bit so that diamond bit internal residual stress reduces, and significantly improves the drilling efficiency and probing benefit of drill bit.
Description
Technical field
The invention belongs to drilling project fields, specifically, being used the present invention relates to geological prospecting diamond bit is improved
The processing method and high life diamond bit in service life.
Background technology
Drilling project is the technical way for obtaining ore and underground material object geologic information, is important in geological prospecting
Working method.Main rock crushing tool of the drill bit as fractured rock in geological drilling engineering is composition important in drilling project
Part includes mainly carbide drill and diamond bit according to the difference for the alloy material that its bit body is inlayed.Wherein,
The advantages that diamond bit is high with its drilling efficiency, probing is high-quality, probing material consumption is few and at low cost, and it is drilled industry
Generally use.
With deepening continuously for the resource explorations such as China's mineral products work, depth of exploration is continuously increased, diamond bit
Service life becomes the key factor for influencing drilling quality and benefits, therefore how to improve the service life of diamond bit,
Extend drill bit usage time, it is most important to the development of geology investigation and prospecting.
In recent years, many experts and scholar are carried by changing drill bit structure, carcass material and processing performance both at home and abroad
The service life of high drill bit, but these methods improve the service life limitation and technique it is cumbersome, cannot increasingly meet geology brill
The needs of spy.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention
One purpose is to propose a kind of processing method and high life diamond drill machine improving geological prospecting diamond bit service life
Head.This method is using steady magnetic field with pulsed magnetic field action in the method for diamond bit so that diamond bit internal residual
Stress reduces, and significantly improves the drilling efficiency and probing benefit of drill bit.
In one aspect of the invention, the present invention proposes a kind of place for improving geological prospecting diamond bit service life
Reason method, according to an embodiment of the invention, this method includes：
(1) diamond bit is fixed between the first electrode and the second electrode, the first electrode has the first permanent magnetism
Body, the second electrode has the second permanent magnet, and first permanent magnet and the second permanent magnet magnetic polarity are on the contrary, institute
Diamond bit is stated to be placed in the steady magnetic field that the first electrode and the second electrode are formed；
(2) positive and negative anodes of the pulse power are connected with the first electrode and the second electrode respectively, and the pulse
Power supply applies pulse current in a manner of electric pulse and interval to the first electrode and the second electrode, to obtain longevity
Order diamond bit.
The processing method according to the ... of the embodiment of the present invention for improving geological prospecting diamond bit service life, in steady magnetic field
Under the double action of pulse current, diamond bit is caused plasticity to be influenced by electromagnetism, and internal texture performance obtains
It significantly improves, residual stress reduces, the binding force enhancing of the diamond and carcass of drill bit internal, and then improves diamond bit
Service life, improve its drilling efficiency and probing benefit, and with it is existing improve diamond bit service life method compared with,
This method is simple for process, treatment effeciency is high, at low cost.
In addition, the processing method according to the above embodiment of the present invention for improving geological prospecting diamond bit service life is also
There can be following additional technical characteristic：
In some embodiments of the invention, in step (1), the diamond bit is PDC drill bit, PCD drill bits, table
Diamond setting head, impregnated bit, insert bit, electroplated diamond bit, soldering formula drill bit, cvd diamond drill bit, bionical diamond
Drill bit or high matrix diamond drill.
In some embodiments of the invention, in step (1), the first electrode and the second electrode are copper electricity
Pole.Be conducive to improve the treatment effeciency and treatment effect to diamond bit as a result,.
In some embodiments of the invention, in step (1), first permanent magnet and second permanent magnet are by neodymium
Iron boron material is made.It can further improve the treatment effeciency and treatment effect to diamond bit as a result,.
In some embodiments of the invention, in step (1), the magnetic field intensity of steady magnetic field is 0.1T-0.18T.By
This, can further improve treatment effeciency and treatment effect to diamond bit.
In some embodiments of the invention, in step (2), the pulse current is DC pulse current.As a result, may be used
Further increase the treatment effeciency and treatment effect to diamond bit.
In some embodiments of the invention, in step (2), the current density of the pulse current is 100-2800A/
cm2.It can further improve the treatment effeciency and treatment effect to diamond bit as a result,.
In some embodiments of the invention, in step (2), the mode of the electric pulse and interval is first continuous input
Then predetermined quantity pulse stops the pulse power, and the repeatedly above process.It is can further improve as a result, to diamond
The treatment effeciency and treatment effect of drill bit.
In some embodiments of the invention, in step (2), the predetermined quantity pulse is 35-60.As a result, may be used
Further increase the treatment effeciency and treatment effect to diamond bit.
In some embodiments of the invention, in step (2), the pulse width of the pulse is 55-70ms.As a result,
It can further improve the treatment effeciency and treatment effect to diamond bit.
In some embodiments of the invention, in step (2), the dwell time of the pulse power is 5-10s.By
This, can further improve treatment effeciency and treatment effect to diamond bit.
In some embodiments of the invention, in step (2), the number of repetition is 5-8 times.It as a result, can be further
Improve the treatment effeciency and treatment effect to diamond bit.
In another aspect of the invention, the present invention proposes a kind of high life diamond bit, reality according to the present invention
Example is applied, the drill bit is to be handled using the processing method of above-mentioned raising geological prospecting diamond bit service life.Cause
The high life diamond bit is that have diamond bit to be caused to mould by electromagnetism under the double action of steady magnetic field and pulse current
Property influence, the texture performance for causing it internal significantly improves, and residual stress reduces, the diamond of drill bit internal and
The binding force of carcass enhances, so that the high life diamond bit has longer service life, can be shown when for drilling
It writes and improves its drilling efficiency and probing benefit.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the processing method stream according to an embodiment of the invention for improving geological prospecting diamond bit service life
Journey schematic diagram；
Fig. 2 is the processing method according to the raising geological prospecting diamond bit service life of further embodiment of the present invention
Schematic diagram.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In one aspect of the invention, the present invention proposes a kind of place for improving geological prospecting diamond bit service life
Reason method, according to an embodiment of the invention, with reference to figure 1, this method includes：
S100：Diamond bit to be fixed between the first electrode and the second electrode, first electrode has the first permanent magnet,
Second electrode has the second permanent magnet, and the first permanent magnet and the second permanent magnet magnetic polarity are on the contrary, diamond bit is set
In in the steady magnetic field that first electrode and second electrode are formed
In the step, with reference to figure 2, diamond bit 100 is fixed between first electrode 210 and second electrode 220, the
There is one electrode 210 first permanent magnet 21, second electrode 220 to have the second permanent magnet 22, and the first permanent magnet 21 and second
22 magnetic polarity of permanent magnet is on the contrary, diamond bit 100 is placed in the steady magnetic field that first electrode 210 and second electrode 220 are formed.
Inventor has found that, by the way that diamond bit to be placed in steady magnetic field, steady magnetic field can improve the thermodynamics shape of diamond bit
State, dispersal behavior and interior tissue performance.
According to one embodiment of present invention, the alloy material inlayed according to bit body is different, and diamond bit can be
PDC drill bit, PCD drill bits, table diamond setting head, impregnated bit, insert bit, electroplated diamond bit, soldering formula drill bit, CVD gold
Hard rock drill bit, bionical diamond bit or high matrix diamond drill.
According to still a further embodiment, first electrode and second electrode are not particularly restricted, art technology
Personnel can select according to actual needs, and a specific embodiment according to the present invention, first electrode and second electrode can
Think copper electrode.
According to still another embodiment of the invention, the first permanent magnet and the second permanent magnet are not particularly restricted, this field
Technical staff can select according to actual needs, a specific embodiment according to the present invention, the first permanent magnet and second
Permanent magnet can be made of NdFeB material, SmCo, alnico class alloy permanent-magnet material or ferrite permanent-magnet materials.
According to still another embodiment of the invention, the magnetic field intensity of steady magnetic field is not particularly restricted, art technology
Personnel can select according to actual needs, and a specific embodiment according to the present invention, the magnetic field intensity of steady magnetic field can
Think 0.1T-0.18T.Inventor has been surprisingly found that by many experiments, when diamond bit is placed in the steady magnetic field of above-mentioned field strength
When middle, the improvement of the thermodynamic state of diamond bit, dispersal behavior and interior tissue performance is best, while also most advantageous
The improvement of Magnetostriction inside diamond bit.
S200：The positive and negative anodes of the pulse power are connected with first electrode and second electrode respectively, and the pulse power is with electric arteries and veins
The mode of punching and interval applies pulse current to first electrode and second electrode
In the step, with reference to figure 2, by the positive and negative anodes of the pulse power 300 respectively with 22 phase of first electrode 21 and second electrode
Even, and the pulse power applies pulse current in a manner of electric pulse and interval to first electrode and second electrode, to obtain height
Service life diamond bit.Inventor has found that pulse current, which is applied in first electrode and second electrode, can encourage pulsed magnetic field,
Steady magnetic field adds pulsed magnetic field collective effect in diamond bit at this time so that between the diamond and carcass of diamond drill machine in front
Bond strength change, stress raisers are released.Wherein, when handling diamond bit, steady magnetic field is always
Mainly steady magnetic field acts on diamond bit when in the presence of, pulse power interval.
According to one embodiment of present invention, pulse current can be DC pulse current.
According to still a further embodiment, the current density of pulse current can be 100-2800A/cm2.Inventor
It was found that because of pulse current and pulsed magnetic field intensity positive correlation, when in the pulsed magnetic field that diamond bit is placed in above-mentioned current density
When, diamond bit is magnetized to saturation state, and its internal magnetic field intensity is unlikely to too strong again, the thermodynamics shape of diamond bit
The improvement of state, dispersal behavior and interior tissue performance is best, most beneficial for the improvement of diamond bit internal performance.
According to still another embodiment of the invention, the mode of electric pulse and interval is that first continuous input predetermined quantity pulse is right
Stop pulse power supply afterwards, and the repeatedly above process.Inventor has found, intermittent to generate by using intermittent pulse current
Pulsed magnetic field, change frequency, waveform and the peak value in magnetic field can be adjusted as needed, to can reach control diamond drill machine
The purpose of the treatment effeciency and treatment effect of head.
A specific embodiment according to the present invention, predetermined quantity pulse can be 35-60.Inventor has found, each
Subpulse magnetic field acts on diamond bit, all diamond bit internal grain can be made obviously to refine, and dislocation density reduces, defect
It reduces, residual stress is relaxed, and if number can excessively cause diamond bit to become fragile.
According to still a further embodiment, the pulse width of pulse can be 55-70ms.Inventor's discovery, pulse
The increase of width can increase the joule loss of the power and conductive material of the pulse power, and the pulse width of this range can ensure
In the case of electromagnetic force maximum value, the phenomenon that avoiding caused by pulse current joule heating effect from being roughened interior tissue, occurs.
According to still another embodiment of the invention, the dwell time of the pulse power can be 5-10s, and number of repetition can be
5-8 times.Inventor find, using electric pulse diamond bit is handled when, the dwell time of the pulse power it is long too short and
Electric pulse can be caused to reduce the treatment effeciency and obvious processing effect of diamond bit when number of repetition is excessively very few.
The processing method according to the ... of the embodiment of the present invention for improving geological prospecting diamond bit service life, in steady magnetic field
Under the double action of pulse current, diamond bit is caused plasticity to be influenced by electromagnetism, and internal texture performance obtains
It significantly improves, residual stress reduces, the binding force enhancing of the diamond and carcass of drill bit internal, and then improves diamond bit
Service life, improve its drilling efficiency and probing benefit, and with it is existing improve diamond bit service life method compared with,
This method is simple for process, treatment effeciency is high, at low cost.
In another aspect of the invention, the present invention proposes a kind of high life diamond bit, reality according to the present invention
Example is applied, drill bit is to be handled using the processing method of above-mentioned raising geological prospecting diamond bit service life.Because of the height
Service life diamond bit is that have diamond bit to be caused plasticity by electromagnetism under the double action of steady magnetic field and pulse current
It influences, the texture performance for causing it internal significantly improves, and residual stress reduces, the diamond and carcass of drill bit internal
Binding force enhancing so that the high life diamond bit have longer service life, can significantly be carried when for drilling
Its high drilling efficiency and probing benefit.
Below with reference to specific embodiment, present invention is described, it should be noted that these embodiments are only to describe
Property, without limiting the invention in any way.
Embodiment
It takes 95 diamond bits of φ, is fixed in two and has been equipped between the copper electrode of Nd-Fe-B permanent magnet.
The permanent magnet that two magnetism are opposite in space where diamond bit generates the steady magnetic field of 0.15T.By the defeated of the pulse power
Outlet is connected with two copper electrodes, carries out the processing of diamond bit.In processing, the pulse current density of pulse power output is
2800A/cm2, 35 amount of current pulses are continuously inputted, each electric pulse has the action time of 55ms, is then spaced 5s, defeated again
Enter the pulse that 35 action times are 55ms, entire processing procedure electric pulse alternately, is repeated 6 times in total with interval.Rack
Experiment the result shows that, using the high life diamond bit obtained after above-mentioned process average life span relatively with group without place
The service life for managing diamond bit improves 60%.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of processing method improving geological prospecting diamond bit service life, which is characterized in that this method includes：
(1) diamond bit is fixed between the first electrode and the second electrode, the first electrode has the first permanent magnet, institute
Stating second electrode has the second permanent magnet, and first permanent magnet and the second permanent magnet magnetic polarity are on the contrary, the gold
Hard rock drill bit is placed in the steady magnetic field that the first electrode and the second electrode are formed；
(2) positive and negative anodes of the pulse power are connected with the first electrode and the second electrode respectively, and the pulse power
Apply pulse current to the first electrode and the second electrode in a manner of electric pulse and interval, to obtain high life gold
Hard rock drill bit.
2. according to the method described in claim 1, it is characterized in that, in step (1), the diamond bit be PDC drill bit,
PCD drill bits, table diamond setting head, impregnated bit, insert bit, electroplated diamond bit, soldering formula drill bit, cvd diamond drill bit,
Bionical diamond bit or high matrix diamond drill.
3. method according to claim 1 or 2, which is characterized in that in step (1), the first electrode and described
Two electrodes are copper electrode.
4. according to the method described in claim 3, it is characterized in that, in step (1), first permanent magnet and described second
Permanent magnet is made of NdFeB material.
5. according to the method described in claim 4, it is characterized in that, in step (1), the magnetic field intensity of steady magnetic field is 0.1-
0.18T。
6. according to the method described in claim 1, it is characterized in that, in step (2), the pulse current is DC pulse
Stream；
Optional, the current density of the pulse current is 100-2800A/cm2。
7. method according to claim 1 or 6, which is characterized in that in step (2), the side of the electric pulse and interval
Formula is that first then continuous input predetermined quantity pulse stops the pulse power, and the repeatedly above process.
8. the method according to the description of claim 7 is characterized in that in step (2), the predetermined quantity pulse is 35-60
It is a；
Optional, the pulse width of the pulse is 55-70ms.
9. according to the method described in claim 8, it is characterized in that, in step (2), the dwell time of the pulse power is
5-10s；
Optional, the number of repetition is 5-8 times.
10. a kind of high life diamond bit, which is characterized in that the drill bit is using described in any one of claim 1-9
The processing method of raising geological prospecting diamond bit service life handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297439.3A CN108504823A (en) | 2018-04-04 | 2018-04-04 | Improve the processing method and high life diamond bit of geological prospecting diamond bit service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810297439.3A CN108504823A (en) | 2018-04-04 | 2018-04-04 | Improve the processing method and high life diamond bit of geological prospecting diamond bit service life |
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| Publication Number | Publication Date |
|---|---|
| CN108504823A true CN108504823A (en) | 2018-09-07 |
Family
ID=63380428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810297439.3A Pending CN108504823A (en) | 2018-04-04 | 2018-04-04 | Improve the processing method and high life diamond bit of geological prospecting diamond bit service life |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610160A (en) * | 2020-12-17 | 2021-04-06 | 同济大学 | Step-shaped composite sheet of CVD diamond layer-impregnated diamond layer-polycrystalline diamond composite sheet layer |
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|---|---|---|---|---|
| US4873605A (en) * | 1986-03-03 | 1989-10-10 | Innovex, Inc. | Magnetic treatment of ferromagnetic materials |
| CN101713021A (en) * | 2009-09-23 | 2010-05-26 | 清华大学 | Method for reducing residual stress of ferromagnetic metal material |
| CN102162490A (en) * | 2011-04-06 | 2011-08-24 | 清华大学 | Bearing processing method and bearing processing equipment |
| CN103624240A (en) * | 2013-11-22 | 2014-03-12 | 江苏大学 | Method for casting high-boron high-speed steel roll centrifugally under composite action of magnet field and electric field |
| CN105219926A (en) * | 2015-10-15 | 2016-01-06 | 清华大学天津高端装备研究院 | Improve the treatment process in bearing work-ing life |
-
2018
- 2018-04-04 CN CN201810297439.3A patent/CN108504823A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873605A (en) * | 1986-03-03 | 1989-10-10 | Innovex, Inc. | Magnetic treatment of ferromagnetic materials |
| CN101713021A (en) * | 2009-09-23 | 2010-05-26 | 清华大学 | Method for reducing residual stress of ferromagnetic metal material |
| CN102162490A (en) * | 2011-04-06 | 2011-08-24 | 清华大学 | Bearing processing method and bearing processing equipment |
| CN103624240A (en) * | 2013-11-22 | 2014-03-12 | 江苏大学 | Method for casting high-boron high-speed steel roll centrifugally under composite action of magnet field and electric field |
| CN105219926A (en) * | 2015-10-15 | 2016-01-06 | 清华大学天津高端装备研究院 | Improve the treatment process in bearing work-ing life |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610160A (en) * | 2020-12-17 | 2021-04-06 | 同济大学 | Step-shaped composite sheet of CVD diamond layer-impregnated diamond layer-polycrystalline diamond composite sheet layer |
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Application publication date: 20180907 |
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