CN203484719U - Low-speed dry drilling brazing diamond bit - Google Patents
Low-speed dry drilling brazing diamond bit Download PDFInfo
- Publication number
- CN203484719U CN203484719U CN201320600785.7U CN201320600785U CN203484719U CN 203484719 U CN203484719 U CN 203484719U CN 201320600785 U CN201320600785 U CN 201320600785U CN 203484719 U CN203484719 U CN 203484719U
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- diamond
- drill body
- low
- drilling
- brazing
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Abstract
The utility model relates to a low-speed dry drilling brazing diamond bit which comprises a vertically-arranged drill bit body (1). The low-speed dry drilling brazing diamond bit is characterized in that a plurality of vertical grooves are evenly formed in the outer surface of the lower half portion of the drill bit body (1), a plurality of water openings (2) are formed in the lower end of the drill bit body (1), a diamond work layer (5) is arranged at the position 0-15mm above the outer surface of the lower end of the drill bit body (1), a welding flux layer (6) is arranged between the diamond work layer (5) and the drill bit body (1), diamond particles of the diamond work layer (5) are arranged in order, and the point blades of the diamond particles are uniformly outward. The low-speed dry drilling brazing diamond bit has the advantages of being long in service life and good in effect.
Description
Technical field
The utility model relates to a kind of diamond bit, relates in particular to a kind of low rapid-curing cutback weldering diamond bit of drilling a blasting hole, and is mainly used in the perforate processing of various hard brittle materials, belongs to diamond tool technical field.
Background technology
In soldering field, method for welding is usually classified according to thermal source or heating means at present, and conventional method for welding has furnace brazing, gas brazing, dip brazing, induction brazing, resistance brazing.In addition, also have some other method for welding in industry, also to obtain application as arc brazing, laser braze welding, infrared brazing etc.This product adopts vacuum brazing technique to make, what braze welding diamond hole drill mostly adopted at present is high-frequency induction brazing, during induction brazing, the soldering of hole drill matrix is partly placed in exchange magnetic field, the heating of this part mother metal is that the faradic resistance heat producing in alternating magnetic field by it is realized, during heating, in the short time, temperature reaches 1000 ~ 1300 ℃, temperature increase is too fast, the diamond efficiency of expanding with heat and contract with cold is too fast, easily cracked, cause solder bad to the wellability of soldering, in air, welding can cause the easy carbonization of diamond, affect the service behaviour of hole drill, even if be placed in inert protective gas, weld, because the purity of inert gas is inadequate, or can produce the phenomenon of diamond carbonization.So these some defects that also cause induction brazing to exist have badly influenced product quality, and in this technique of vacuum brazing, the latent defect of some existence can be improved and be avoided by certain methods.The exploitation meaning great to being processed with of difficult-to-machine material of vacuum brazing super hard abrasive instrument.Vacuum brazing is efficient, high-quality, low cost, is widely used.
At present, the common principal element that affects vacuum brazing is as follows:
1, the technological parameter of vacuum brazing;
2, the slip of equipment;
3, the purity of gas;
4, the surface cleanness of part, frock;
5, fit-up gap;
6, product lays.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of long service life, the good low rapid-curing cutback of the effect weldering diamond bit of drilling a blasting hole is provided.
The purpose of this utility model is achieved in that
A kind of low rapid-curing cutback weldering diamond bit of drilling a blasting hole, it comprises the drill body of vertical layout, the Lower Half outer surface of described drill body is provided with a plurality of vertical slots that are evenly arranged, the lower end of described drill body is provided with a plurality of mouths of a river, the lower end outer surface of described drill body is upwards provided with diamond working layers in 0 ~ 15mm place, between described diamond working layers and drill body, be provided with solder layer, the diamond particles ordered arrangement of described diamond working layers and diamond particles point sword are unified outwardly.The first half cross section of described drill body is regular hexagon, and the Lower Half cross section of described drill body is circular.The center of described drill body is provided with through hole from top to bottom, and the upper end inwall of described through hole is provided with screw thread.
Compared with prior art, the beneficial effects of the utility model are:
1, research can guarantee to obtain high technique and key technology of controlling the diamond abrasive vacuum brazing of intensity.Diamond is carried out to titanizing processing, research diamond and titanium layers is processed the impact on diamond serviceability, at the temperature of the micro-evaporation titanizing of vacuum, the carbon atom of diamond surface can enter the coat of metal with the form of a kind of gap expansion, and form carbide with titanium bonding, first this diffusion can change the surface roughness of diamond crystal, and then can make the crystal habit of crystal that micro-change occurs.
2, owing to having added tungsten, cobalt and iron powder in scolder, diamond, scolder, matrix three are combined together, abrasion resistance is generally hardenable alloys tool steel 5-16 doubly, and diamond particles is in conjunction with firm, and service life is elongated.
3, the arrangement mode of diamond particles is processed, adopted the method for electrostatic sand-planting, make diamond point sword outwardly, greatly increase the sharpness of product, diamond bottom and matrix are in conjunction with more firm.
Therefore, the utility model long service life, effect are good, compare with other brazed diamond drill bits, the hole drill of 8mm diameter of take is example, and in the thick Ceramic Tiles of 8-10mm, 500W power drill drilling speed reaches 2600r/min, punching is no less than 70, and other brazed diamond drill bits can only be made a call to 40.
Accompanying drawing explanation
Fig. 1 be the low rapid-curing cutback of the utility model drill a blasting hole weldering diamond bit vertical profile schematic diagram.
Fig. 2 is the A place partial enlarged drawing of Fig. 1.
Fig. 3 is the B place partial enlarged drawing of Fig. 1.
Fig. 4 be the low rapid-curing cutback of the utility model drill a blasting hole weldering diamond bit first half cross sectional representation.
Fig. 5 is the low rapid-curing cutback of the utility model upwards 0 ~ 15mm place cross sectional representation of weldering diamond bit lower end of drilling a blasting hole.
Wherein:
Drill body 1, the mouth of a river 2, through hole 3, screw thread 4, diamond working layers 5, solder layer 6.
The specific embodiment
Referring to Fig. 1 ~ Fig. 5, a kind of low rapid-curing cutback that the utility model the relates to weldering diamond bit of drilling a blasting hole, it comprises the drill body 1 of vertical layout, the first half cross section of described drill body 1 is regular hexagon, the Lower Half cross section of described drill body 1 is circular, the Lower Half outer surface of described drill body 1 is provided with a plurality of vertical slots that are evenly arranged, the lower end of described drill body 1 is provided with a plurality of mouths of a river 2, the center of described drill body 1 is provided with through hole 3 from top to bottom, the upper end inwall of described through hole 3 is provided with screw thread 4, the lower end outer surface of described drill body 1 is upwards provided with diamond working layers 5 in 0 ~ 15mm place, between described diamond working layers 5 and drill body 1, be provided with the solder layer 6 that particular adhesive is made, in the scolder of solder layer 6, added tungsten, cobalt and iron powder, described diamond working layers 5 is to adopt electrostatic sand-planting method to carry out soldering to diamond particles, make diamond particles ordered arrangement, diamond particles point sword is unified outwardly, the outer surface of diamond particles is provided with titanizing layer.
Claims (3)
1. the low rapid-curing cutback weldering diamond bit of drilling a blasting hole, it comprises the drill body (1) of vertical layout, the Lower Half outer surface that it is characterized in that described drill body (1) is provided with a plurality of vertical slots that are evenly arranged, the lower end of described drill body (1) is provided with a plurality of mouths of a river (2), the lower end outer surface of described drill body (1) is upwards provided with diamond working layers (5) in 0 ~ 15mm place, between described diamond working layers (5) and drill body (1), be provided with solder layer (6), the diamond particles ordered arrangement of described diamond working layers (6) and diamond particles point sword are unified outwardly.
2. a kind of low rapid-curing cutback according to claim 1 weldering diamond bit of drilling a blasting hole, the first half cross section that it is characterized in that described drill body (1) is regular hexagon, the Lower Half cross section of described drill body (1) is circular.
3. a kind of low rapid-curing cutback according to claim 1 and 2 weldering diamond bit of drilling a blasting hole, is characterized in that the center of described drill body (1) is provided with through hole (3) from top to bottom, and the upper end inwall of described through hole (3) is provided with screw thread (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600785.7U CN203484719U (en) | 2013-09-27 | 2013-09-27 | Low-speed dry drilling brazing diamond bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600785.7U CN203484719U (en) | 2013-09-27 | 2013-09-27 | Low-speed dry drilling brazing diamond bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203484719U true CN203484719U (en) | 2014-03-19 |
Family
ID=50255578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320600785.7U Expired - Fee Related CN203484719U (en) | 2013-09-27 | 2013-09-27 | Low-speed dry drilling brazing diamond bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203484719U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400916A (en) * | 2014-11-25 | 2015-03-11 | 江苏锋菱超硬工具有限公司 | Low-speed, dry-punching and braze-welding star drill |
| CN113137183A (en) * | 2021-05-10 | 2021-07-20 | 江苏锋菱超硬工具有限公司 | Production method of sharp hole drill |
-
2013
- 2013-09-27 CN CN201320600785.7U patent/CN203484719U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400916A (en) * | 2014-11-25 | 2015-03-11 | 江苏锋菱超硬工具有限公司 | Low-speed, dry-punching and braze-welding star drill |
| CN104400916B (en) * | 2014-11-25 | 2016-03-09 | 江苏锋菱超硬工具有限公司 | A kind of low rapid-curing cutback welding small hole of drilling a blasting hole bores |
| CN113137183A (en) * | 2021-05-10 | 2021-07-20 | 江苏锋菱超硬工具有限公司 | Production method of sharp hole drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20150927 |
|
| EXPY | Termination of patent right or utility model |