CN207110976U - A kind of composite polycrystal-diamond for complicated hard formation - Google Patents
A kind of composite polycrystal-diamond for complicated hard formation Download PDFInfo
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- CN207110976U CN207110976U CN201720609453.3U CN201720609453U CN207110976U CN 207110976 U CN207110976 U CN 207110976U CN 201720609453 U CN201720609453 U CN 201720609453U CN 207110976 U CN207110976 U CN 207110976U
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Abstract
The utility model provides a kind of composite polycrystal-diamond for complicated hard formation, including diamond layer and hard alloy layer, the composite polycrystal-diamond be by diamond dust with hard alloy substrate is once sintered forms；The diamond layer adds the structure on inclined-plane using plane, and the included angle A of inclined-plane and plane is 8 15 °, planar diameter Φ1Account for the composite polycrystal-diamond outside diameter Φ21/2 1/4, inclined-plane can suitably be adjusted with plane included angle A according to rock stratum situation in the diamond layer.Composite polycrystal-diamond of the present utility model improves the shape of diamond layer, increase composite polycrystal-diamond cutting edge in use at the rear elevation angle of drill bit, improve the toughness of composite polycrystal-diamond, surface has planar structure concurrently simultaneously, it is not smooth to solve cambered surface piece chip removal, drilling depth efficiency is improved, reduces drilling cost.
Description
Technical field
The utility model belongs to superhard material field, and in particular to a kind of polycrystalline diamond for complicated hard formation is compound
Piece.
Background technology
It is composite polycrystal-diamond that the composite that one layer of diamond layer is formed is sintered on hard alloy substrate（Referred to as
For PDC）.PDC had both had the hardness and wearability of diamond, again with the intensity of hard alloy, toughness with it is good
Weldability, it is a kind of remarkable cutting tool material, has been widely used in oil, coal, geological drilling, machining etc.
Numerous areas.
With the development of probing production industry, the energy and mineral resources that shallow-layer is easily exploited are fewer and fewer, cause drilling deep
Degree is more and more deeper, and formation hardness more and more higher, stratum is more complicated, to the durability of probing exploitation instrument, drilling efficiency, operation
Cost etc. proposes higher requirement.Composite polycrystal-diamond as probing exploitation instrument main cutting part, it is necessary to not
It is disconnected to improve, improve the performance indications such as its wearability, impact resistance, heat resistance.Especially in foam-like basalt, shale, conglomerate
When being crept into Deng complicated uneven hard formation, there are the failure modes such as disintegrating tablet in conventional plane composite sheet, and cambered surface composite sheet can then go out
Existing drilling efficiency is low, not even drilling depth the problems such as.Accordingly, it is desirable to provide one kind can meet that complicated uneven hard formation bores
Enter, need to take into account the composite polycrystal-diamond of drilling efficiency again.
Utility model content
In order to solve the above technical problems, to provide a kind of polycrystalline diamond for complicated hard formation compound for the utility model
Piece.Composite polycrystal-diamond of the present utility model improves the shape of diamond layer, increase composite polycrystal-diamond cutting
Sword improves the toughness of composite polycrystal-diamond in use at the rear elevation angle of drill bit, at the same surface have concurrently it is flat
Face structure, solution cambered surface piece chip removal is not smooth, improves drilling depth efficiency, reduces drilling cost.
The purpose of this utility model is achieved through the following technical solutions：
A kind of composite polycrystal-diamond for complicated hard formation, including diamond layer and hard alloy layer, it is described poly-
Diamond composite sheet be by diamond dust with hard alloy substrate is once sintered forms；
The diamond layer adds the structure on inclined-plane using plane, and the included angle A of inclined-plane and plane is 8-15 °, planar diameter Φ1
Account for the composite polycrystal-diamond outside diameter Φ21/2-1/4.
Inclined-plane can suitably be adjusted with plane included angle A according to rock stratum situation in the diamond layer.
Further, the hard alloy layer is integrally in cylinder, and its shape is identical with the diamond layer shape, upper end
With plane plus ramp structure, while A ' scope is 8-15 °, and hard alloy layer surface is covered with hemispherical salient point, bump height R
For 0.2mm-0.6mm.
The salient point of the hard alloy layer surface can increase the contact area between diamond layer and hard alloy layer, increase
Hold, improve impact resistance.
Compared with prior art, the beneficial effects of the utility model：
（1）Diamond layer adds the structure on inclined-plane using plane in the utility model, and the angle of inclined-plane and plane can basis
Rock stratum hardness and complexity are adjusted, and overcome plane composite polycrystal-diamond and the problems such as disintegrating tablet occur.
（2）Hard alloy layer surface is covered with salient point in the utility model, can increase between diamond layer and hard alloy layer
Adhesion, improve impact resistance.
（3）Composite polycrystal-diamond of the present utility model is keeping pole both with planar structure or with ramp structure
While high shock resistance, drilling depth efficiency is had concurrently, it is comprehensive to reduce drilling cost.
Brief description of the drawings
Fig. 1 is the stereogram of the utility model composite polycrystal-diamond；
Fig. 2 is the sectional structure chart of the utility model composite polycrystal-diamond；
Fig. 3 is the top view of the utility model composite polycrystal-diamond；
Fig. 4 is the hard alloy layer sectional structure chart of the utility model composite polycrystal-diamond；
Fig. 5 is the top view of the hard alloy layer of the utility model composite polycrystal-diamond；
In figure：1- diamond layers, 2- hard alloy layers.
Embodiment
With reference to embodiment and accompanying drawing, the utility model is described in more detail.
Fig. 1 is composite polycrystal-diamond stereogram of the present utility model.As shown in figure 1, a kind of be used for complicated hard formation
Composite polycrystal-diamond include diamond layer 1 and hard alloy layer 2, the composite polycrystal-diamond is to pass through diamond
Powder with hard alloy substrate is once sintered at high temperature under high pressure forms, temperature can reach 1000-3000 DEG C, and pressure reaches 3.0-
20Gpa, in the present embodiment, once sintered condition are 1600 DEG C and 9GPa.
As shown in Figures 2 and 3, wherein, diamond layer 1 adds the structure on inclined-plane using plane, and the included angle A of inclined-plane and plane can
To carry out appropriate adjustment according to the situation of rock stratum, A is generally 8-15 °, and A is 10 ° in the present embodiment, planar diameter Φ1Account for
The composite polycrystal-diamond outside diameter Φ21/2-1/4, be in the present embodiment 1/3.
As shown in Figure 4 and Figure 5, it is in cylinder that hard alloy layer 2 is overall, and its shape is identical with the above-mentioned shape of diamond layer 1,
Upper end is also that plane adds ramp structure, and the included angle A of inclined-plane and plane ' also it is 10 °, it is advantageously that, the surface of hard alloy layer 2 is covered with
Hemispherical salient point, bump height R are 0.2mm-0.6mm, the salient point on the surface of hard alloy layer 2 can increase diamond layer 1 with
Contact area between hard alloy layer 2, increase hold, improve impact resistance, bump height R is in the present embodiment
0.3mm。
Probing shows that the composite polycrystal-diamond of the utility model fully meets foam-like basalt, page on the spot at scene
The complicated uneven hard formation drilling demand such as rock, conglomerate, drilling life-span improve 1.5 times, and drilling efficiency improves 1 times, integrated cost
Reduce by 30% or so.
It is noted that embodiment described above is to the illustrative and not limiting of technical solutions of the utility model, affiliated skill
The equivalent substitution of art field those of ordinary skill or the other modifications made according to prior art, as long as not new beyond this practicality
The thinking and scope of type technical scheme, it should be included within the interest field required by the utility model.
Claims (2)
1. a kind of composite polycrystal-diamond for complicated hard formation, including diamond layer and hard alloy layer, the glomerocryst
Diamond compact be by diamond dust with hard alloy substrate is once sintered forms；
The diamond layer adds the structure on inclined-plane using plane, and the included angle A of inclined-plane and plane is 8-15 °, planar diameter Φ1Account for institute
State composite polycrystal-diamond outside diameter Φ21/2-1/4；
The hard alloy layer is integrally in cylinder, and its shape is identical with the diamond layer shape, and upper end also adds with plane
Ramp structure, while A ' scope is 8-15 °, hard alloy layer surface is covered with hemispherical salient point.
2. a kind of composite polycrystal-diamond for complicated hard formation according to claim 1, it is characterised in that described
Bump height R is 0.2mm-0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720609453.3U CN207110976U (en) | 2017-05-27 | 2017-05-27 | A kind of composite polycrystal-diamond for complicated hard formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720609453.3U CN207110976U (en) | 2017-05-27 | 2017-05-27 | A kind of composite polycrystal-diamond for complicated hard formation |
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| CN207110976U true CN207110976U (en) | 2018-03-16 |
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| CN201720609453.3U Active CN207110976U (en) | 2017-05-27 | 2017-05-27 | A kind of composite polycrystal-diamond for complicated hard formation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029943A (en) * | 2019-05-05 | 2019-07-19 | 广东钜鑫新材料科技股份有限公司 | MULTILAYER COMPOSITE diamond hard alloy wear resistant parts and its manufacturing method |
| CN110500039A (en) * | 2019-07-10 | 2019-11-26 | 河南四方达超硬材料股份有限公司 | Polycrystalline diamond compact with extension |
| USD997219S1 (en) | 2021-10-14 | 2023-08-29 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a double-layer structure |
| USD1006073S1 (en) | 2021-10-14 | 2023-11-28 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised surface sloping to a peripheral extension |
| USD1006074S1 (en) | 2021-10-14 | 2023-11-28 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised triangular structure |
| USD1026980S1 (en) | 2021-10-14 | 2024-05-14 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised surface and groove therein |
| USD1026981S1 (en) | 2021-10-14 | 2024-05-14 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a tripartite raised surface |
-
2017
- 2017-05-27 CN CN201720609453.3U patent/CN207110976U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029943A (en) * | 2019-05-05 | 2019-07-19 | 广东钜鑫新材料科技股份有限公司 | MULTILAYER COMPOSITE diamond hard alloy wear resistant parts and its manufacturing method |
| CN110500039A (en) * | 2019-07-10 | 2019-11-26 | 河南四方达超硬材料股份有限公司 | Polycrystalline diamond compact with extension |
| US11772977B2 (en) | 2019-07-10 | 2023-10-03 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact table with polycrystalline diamond extensions therefrom |
| USD997219S1 (en) | 2021-10-14 | 2023-08-29 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a double-layer structure |
| USD1006073S1 (en) | 2021-10-14 | 2023-11-28 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised surface sloping to a peripheral extension |
| USD1006074S1 (en) | 2021-10-14 | 2023-11-28 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised triangular structure |
| USD1026980S1 (en) | 2021-10-14 | 2024-05-14 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a raised surface and groove therein |
| USD1026981S1 (en) | 2021-10-14 | 2024-05-14 | Sf Diamond Co., Ltd. | Polycrystalline diamond compact with a tripartite raised surface |
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