CN207288895U - A kind of integral sintered polycrystalline diamond button - Google Patents
A kind of integral sintered polycrystalline diamond button Download PDFInfo
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- CN207288895U CN207288895U CN201721314370.8U CN201721314370U CN207288895U CN 207288895 U CN207288895 U CN 207288895U CN 201721314370 U CN201721314370 U CN 201721314370U CN 207288895 U CN207288895 U CN 207288895U
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- button
- polycrystalline diamond
- layer
- integral sintered
- sintered polycrystalline
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Abstract
The utility model discloses a kind of integral sintered polycrystalline diamond button, including outer wear layer and internal anti-impacting layer, the outer layer of the internally positioned anti-impacting layer of outer wear layer, outer wear layer and internal anti-impacting layer to be prepared by polycrystalline diamond.Existing hard alloy composite ball tooth is usually that levels are compound, button is divided into inside and outside two layers by the utility model, is prepared by polycrystalline diamond for inside and outside two layers, not only reduces the manufacture cost of button, the wearability and impact resistance of button are also improved, improves the service efficiency and service life of button.
Description
Technical field
The utility model belongs to button technical field, and in particular to a kind of integral sintered polycrystalline diamond button.
Background technology
Geological prospecting at present, coal mining, oil exploitation etc. largely use button, improve work efficiency.Button material
Species is very much, in the past with high-speed steel, hard alloy is used greatly at present, partly using diamond hard alloy composite ball tooth.High-speed steel Yin Qinai
Mill property is inadequate, and short life has dropped out stage, the substitute is hard alloy spherical-teeth, hard alloy raw material processing in recent years one
It is straight to go up, the reason is that its storage is limited, it is non-renewable, therefore following hard alloy price meeting Continued, cost can be brought
It is substantially improved.The appearance of diamond hard alloy composite ball tooth is to tackle the exploration of more hard formation, can improve bit life and work efficiency, but
It is that diamond hard alloy composite ball tooth is using hard alloy as matrix, compound strata diamond composite bed, its major part are gone back on it
It is hard alloy, in the future or the problem of hard alloy raw material are rare can be faced.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, there is provided a kind of integral sintered polycrystalline diamond ball
Tooth.
The purpose of this utility model is realized in the following manner：
A kind of integral sintered polycrystalline diamond button, including outer wear layer and internal anti-impacting layer, outer wear layer position
In the outer layer of internal anti-impacting layer, outer wear layer and internal anti-impacting layer are prepared by polycrystalline diamond.
The button is cylinder.
The button lower part is cylinder, and top is hemisphere, the diameter of the upper surface of hemispheroidal diameter and cylinder
Equal, the hemispheroidal centre of sphere is identical with the center location of the upper surface of cylinder.
The button is bullet-headed.
The button lower part is cylinder, and top is cone, and cone bottom surface diameter of a circle is justified with cylinder upper surface
Diameter it is equal, cone bottom surface circle the center of circle it is identical with the center location that cylinder upper surface is justified.
The cross section of the interface of the outer wear layer and internal anti-impacting layer is the circular or circle with wave tooth.
The wave tooth is rectangle, triangle or semicircle.
Existing hard alloy composite ball tooth is usually that levels are compound, and button is divided into two layers, inside and outside two layers inside and outside by the utility model
It is prepared by polycrystalline diamond, not only reduces the manufacture cost of button, also improves wearability and the shock resistance of button
Property, improves the service efficiency and service life of button.
Brief description of the drawings
Fig. 1 is the vertical section schematic diagram of one of integral sintered polycrystalline diamond button prepared by the present invention.
Fig. 2 is the cross-sectional view of one of integral sintered polycrystalline diamond button prepared by the present invention.
Fig. 3 is two vertical section schematic diagram of integral sintered polycrystalline diamond button prepared by the present invention.
Fig. 4 is two cross-sectional view of integral sintered polycrystalline diamond button prepared by the present invention.
Fig. 5 is three vertical section schematic diagram of integral sintered polycrystalline diamond button prepared by the present invention.
Fig. 6 is three cross-sectional view of integral sintered polycrystalline diamond button prepared by the present invention.
Fig. 7 is four vertical section schematic diagram of integral sintered polycrystalline diamond button prepared by the present invention.
Fig. 8 is four cross-sectional view of integral sintered polycrystalline diamond button prepared by the present invention.
Wherein, 1 is outer wear layer；2 be internal anti-impacting layer.
Embodiment
As shown in attached drawing 1-8, a kind of integral sintered polycrystalline diamond button, including outer wear layer 1 and internal shock resistance
Layer 2, the outer layer of the internally positioned anti-impacting layer 2 of outer wear layer 1, outer wear layer 1 and internal anti-impacting layer 2 are by glomerocryst Buddha's warrior attendant
Stone is prepared.
Button is cylinder, as shown in Figure 1.
Button lower part is cylinder, and top is hemisphere, and hemispheroidal diameter is equal with the diameter of the upper surface of cylinder,
The hemispheroidal centre of sphere is identical with the center location of the upper surface of cylinder, as shown in Figure 3.
Button is bullet-headed, as shown in Figure 7.
Button lower part is cylinder, and top is cone, and cone bottom surface diameter of a circle is justified straight with cylinder upper surface
Footpath is equal, and the center of circle of cone bottom surface circle is identical with the center location that cylinder upper surface is justified, as shown in Figure 5.
The cross section of the interface of outer wear layer 1 and internal anti-impacting layer 2 is the circular or circle with wave tooth, is such as schemed
2、4、6、8。
Wave tooth is rectangle, triangle or semicircle.
Outer wear layer 1 is made of the raw material of following mass fraction：Diadust 70-95%, nickel powder 1-5%, silica flour 1-
15%, cobalt powder 3-20%；Internal anti-impacting layer 2 is made of the raw material of following mass fraction：Diadust 40-70%, nickel powder 1-
10%, silica flour 5-15%, cobalt powder 10-40%.
The granularity of the diadust of outer wear layer 1 and internal anti-impacting layer 2 is W40-W10.
The particle diameter of the nickel powder of outer wear layer 1 and internal anti-impacting layer 2, which is respectively less than, is equal to 300 mesh.
The particle diameter of the silica flour of outer wear layer 1 and internal anti-impacting layer 2, which is respectively less than, is equal to 400 mesh.
The particle diameter of the cobalt powder of outer wear layer 1 and internal anti-impacting layer 2, which is respectively less than, is equal to 400 mesh.
The preparation method of integral sintered polycrystalline diamond button described above, comprises the following steps that：
（1）Outer wear layer particle：First by nickel powder electroplate on diadust surface, then by the diadust of nickel plating,
Silica flour, cobalt powder are uniformly mixed, and are added the PVA aqueous solutions that mass fraction is 1% and are soaked, are granulated, obtain outer wear layer particle；
（2）Internal anti-impacting layer particle：First nickel powder is electroplated micro- on diadust surface, then by the diamond of nickel plating
Powder, silica flour, cobalt powder are uniformly mixed, and are added the PVA aqueous solutions that mass fraction is 1% and are soaked, are granulated, obtain internal anti-impacting layer particle；
（3）Outer wear layer particle packing is entered in mould, is compacted with pressure head；
（4）Internal anti-impacting layer particle packing is entered in mould again, mould of dismantling after being compacted with pressure head obtains button entity；
（5）Above-mentioned button entity is put into vacuum drying oven, under hydrogen and argon gas mixed-gas environment, keeps the temperature 1h, temperature
For 650-750 DEG C；Impurity and oxygen in button of going out entity etc.；
（6）After the button entity and pyrophillite that are taken out from vacuum drying oven, steel ring assembling, it is put into cubic hinge press,
Pressure 5-8GPa, 1100-1500 DEG C of sintering 3-6min of temperature, after taking-up after sandblasting and Excircle machining, forms integral sintered
Polycrystalline diamond button.
Step（5）The volume ratio of middle hydrogen and argon gas is 3:7.
The particle diameter of outer wear layer particle and internal anti-impacting layer particle is 0.5-2.0mm.
Button is divided into inside and outside two layers by the utility model, is prepared by polycrystalline diamond for inside and outside two layers, is not only reduced
The manufacture cost of button, also improves the wearability and impact resistance of button, improves the service efficiency of button and using the longevity
Life.
Above-described is only the preferred embodiment of the utility model, it is noted that for those skilled in the art
For, under the premise of the utility model general idea is not departed from, some changes and improvements can also be made, these should also be considered as
The scope of protection of the utility model.
Claims (7)
- A kind of 1. integral sintered polycrystalline diamond button, it is characterised in that：Including outer wear layer（1）With internal anti-impacting layer （2）, outer wear layer（1）Internally positioned anti-impacting layer（2）Outer layer, outer wear layer（1）With internal anti-impacting layer（2）By Polycrystalline diamond is prepared.
- 2. integral sintered polycrystalline diamond button according to claim 1, it is characterised in that：The button is cylinder.
- 3. integral sintered polycrystalline diamond button according to claim 1, it is characterised in that：The button lower part is cylinder Body, top are hemisphere, and hemispheroidal diameter is equal with the diameter of the upper surface of cylinder, the hemispheroidal centre of sphere and cylinder The center location of upper surface is identical.
- 4. integral sintered polycrystalline diamond button according to claim 1, it is characterised in that：The button is sub warhead Shape.
- 5. integral sintered polycrystalline diamond button according to claim 1, it is characterised in that：The button lower part is cylinder Body, top are cone, and cone bottom surface diameter of a circle is equal with cylinder upper surface diameter of a circle, the circle of cone bottom surface circle The heart is identical with the center location that cylinder upper surface is justified.
- 6. according to any integral sintered polycrystalline diamond buttons of claim 1-5, it is characterised in that：The outer wear-resistant Layer（1）With internal anti-impacting layer（2）The cross section of interface be the circular or circle with wave tooth.
- 7. integral sintered polycrystalline diamond button according to claim 6, it is characterised in that：The wave tooth is rectangular Shape, triangle or semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721314370.8U CN207288895U (en) | 2017-10-12 | 2017-10-12 | A kind of integral sintered polycrystalline diamond button |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721314370.8U CN207288895U (en) | 2017-10-12 | 2017-10-12 | A kind of integral sintered polycrystalline diamond button |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207288895U true CN207288895U (en) | 2018-05-01 |
Family
ID=62414004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721314370.8U Active CN207288895U (en) | 2017-10-12 | 2017-10-12 | A kind of integral sintered polycrystalline diamond button |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207288895U (en) |
-
2017
- 2017-10-12 CN CN201721314370.8U patent/CN207288895U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230725 Address after: Room R08-200, 1st Floor, Unit 2, Building 7, Zhongyuan Advertising Industrial Park, No. 53 Science Avenue, High tech Industrial Development Zone, Zhengzhou City, Henan Province, 450001 Patentee after: Henan Nitrogen Boron New Material Technology Co.,Ltd. Address before: No. 23 Xuesong South Road, High tech Development Zone, Zhengzhou City, Henan Province, 450001 Patentee before: ZHENGZHOU BERLT HARD MATERIALS Co.,Ltd. |