CN216429505U - Reinforced diamond composite sheet - Google Patents
Reinforced diamond composite sheet Download PDFInfo
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- CN216429505U CN216429505U CN202123275651.6U CN202123275651U CN216429505U CN 216429505 U CN216429505 U CN 216429505U CN 202123275651 U CN202123275651 U CN 202123275651U CN 216429505 U CN216429505 U CN 216429505U
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- diamond
- diamond layer
- compact
- circular groove
- reinforced
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Abstract
The utility model discloses a reinforced diamond composite sheet, which comprises a base body and a diamond layer, wherein the diamond layer is arranged on the upper side of the base body; the upper side surface of the substrate connected with the diamond layer is provided with a circular groove, and the vertical section of the circular groove passing through the center is in a dovetail shape; the round groove with the dovetail-shaped cross section is arranged at the joint of the matrix and the diamond layer, so that the stress at the joint of the diamond layer and the hard alloy can be reduced, and the bonding strength of the diamond layer and the hard alloy can be increased; the overall strength and impact resistance of the diamond compact are improved, and the service life of the compact is prolonged.
Description
Technical Field
The utility model belongs to the technical field of diamond equipment, in particular to strenghthened type diamond compact piece.
Background
The diamond composite sheet is formed by mixing diamond micro powder and a bonding agent, then compacting the mixture on a hard alloy substrate and sintering the mixture under the condition of ultrahigh pressure and high temperature, has the high hardness, high wear resistance and heat conductivity of diamond and the strength and impact toughness of hard alloy, and is an ideal material for manufacturing cutting tools, drilling bits and other wear-resistant tools.
Most of the diamond layer and the matrix of the traditional diamond compact are fixed together in a plane or cambered surface connection mode. When the plane connection diamond compact is used, the diamond compact of the drill bit is particularly easy to damage or delaminate when the drill bit bears high torque acting force in the drilling process due to the stratum during the operation of special stratum.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a reinforced diamond composite sheet, which solves the problems of the prior art, and a round groove with a dovetail-shaped cross section is arranged at the joint of a matrix and a diamond layer, so that the stress at the joint of the diamond layer and a hard alloy can be reduced, and the bonding strength of the diamond layer and the hard alloy can be increased; the overall strength and impact resistance of the diamond compact are improved, and the service life of the compact is prolonged.
In order to achieve the above purpose, the utility model provides a following technical scheme: a reinforced diamond compact comprises a substrate and a diamond layer, wherein the diamond layer is arranged on the upper side of the substrate; the upper side surface of the base body connected with the diamond layer is provided with a circular groove, and the vertical section of the circular groove passing through the center is in a dovetail shape.
Preferably, the substrate is cemented carbide.
Preferably, the substrate is of cylindrical configuration.
Preferably, the number of the circular grooves is one.
Preferably, the circular groove is concentric with the base.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the round groove with the dovetail-shaped cross section is arranged at the joint of the base body and the diamond layer, so that the stress at the joint of the diamond layer and the hard alloy can be effectively reduced, and the bonding strength of the base body and the diamond layer is increased; the overall strength and impact resistance of the diamond compact are improved, the occurrence of delamination phenomenon is reduced, and the service life of the compact is prolonged.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of the present invention.
Fig. 2 is a schematic top view of the base body of the present invention.
In the figure: 1. base member, 2 diamond layer, 3, circular recess.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "middle", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1-2, the present embodiment provides a reinforced diamond compact, including a substrate 1 and a diamond layer 2, wherein the diamond layer 2 is disposed on an upper side of the substrate 1; the upper side face of the base body 1 connected with the diamond layer 2 is provided with a circular groove 3, and the cross-center vertical section of the circular groove 3 is in a dovetail shape.
In this embodiment, the base 1 is a cemented carbide.
In this embodiment, the substrate 1 has a cylindrical structure.
In this embodiment, the number of the circular grooves 3 is one.
In this embodiment, the circular groove 3 is concentric with the base 1.
When the utility model is produced, the diamond micro powder and the bonding agent are mixed and compacted on the upper side of the substrate 1, and the diamond micro powder and the bonding agent extend into the circular groove 3 in the compacting process; forming a diamond layer 2 on the upper side of the substrate 1 through high-temperature sintering, wherein the diamond layer 2 extends and is filled in the circular groove 3, and the diamond layer 2 of the circular groove 3 is integrally connected with the diamond layer 2 on the upper side of the substrate 1; the traditional plane combination and simple curved surface combination are replaced, the stress at the combination part of the diamond layer 2 and the hard alloy matrix 1 can be effectively reduced, and the combination strength of the matrix 1 and the diamond layer 2 is increased; the overall strength and impact resistance of the diamond compact are improved, the occurrence of delamination phenomenon is reduced, and the service life of the compact is prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a strenghthened type diamond compact, includes base member and diamond layer, its characterized in that: the diamond layer is arranged on the upper side of the substrate; the upper side surface of the base body connected with the diamond layer is provided with a circular groove, and the vertical section of the circular groove passing through the center is in a dovetail shape.
2. The reinforced diamond compact of claim 1, wherein: the substrate is made of hard alloy.
3. The reinforced diamond compact of claim 2, wherein: the substrate is of a cylindrical structure.
4. The reinforced diamond compact of claim 3, wherein: the number of the circular grooves is one.
5. The reinforced diamond compact of claim 4, wherein: the circular groove is concentric with the base body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123275651.6U CN216429505U (en) | 2021-12-24 | 2021-12-24 | Reinforced diamond composite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123275651.6U CN216429505U (en) | 2021-12-24 | 2021-12-24 | Reinforced diamond composite sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216429505U true CN216429505U (en) | 2022-05-03 |
Family
ID=81318607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123275651.6U Active CN216429505U (en) | 2021-12-24 | 2021-12-24 | Reinforced diamond composite sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216429505U (en) |
-
2021
- 2021-12-24 CN CN202123275651.6U patent/CN216429505U/en active Active
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