Assembly structure of thickened polycrystalline diamond compact

Abstract

The utility model discloses an assembly structure of a thickened polycrystalline diamond compact, which relates to the technical field of polycrystalline diamond compacts, and comprises a pyrophyllite shell used for accommodating the thickened polycrystalline diamond compact, a uniform heating mechanism and a plugging mechanism; the thickened polycrystalline diamond compact is used for forming a finished product of the thickened polycrystalline diamond compact; and the uniform heating mechanism is used for uniformly heating the thickened polycrystalline diamond compact. According to the utility model, not only can the heat dissipation be effectively reduced in the synthesis process of the thickened polycrystalline diamond compact, but also the uniform heating of the thickened polycrystalline diamond compact can be realized through the two ends of the thickened polycrystalline diamond compact and the outer wall of the thickened polycrystalline diamond compact; the quality of the finished product of the thickened polycrystalline diamond composite material is ensured while the synthesis speed of the thickened polycrystalline diamond composite material is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of polycrystalline diamond composite sheets, in particular to an assembly structure of a thickened polycrystalline diamond composite sheet. Background Art

[0002] Polycrystalline diamond composite materials have super high hardness and wear resistance, and are widely used in the cutting of oil and geological exploration drill bits and superhard cutting tools. When used as superhard cutting tools, they need to be cut to form a specific shape and then welded to the tool body.

[0003] The utility model patent with patent authorization announcement number CN 209483225 U discloses an assembly structure of a polycrystalline diamond composite sheet, which includes a polycrystalline diamond composite sheet, the polycrystalline diamond composite sheet includes a cemented carbide matrix and a diamond layer, and the periphery of the polycrystalline diamond composite sheet is sequentially sleeved with a salt tube, a carbon tube, a dolomite ring and a pyrophyllite shell from the inside to the outside; salt sheets are provided at both the upper and lower ends of the polycrystalline diamond composite sheet, a carbon sheet is provided on the side of the salt sheet away from the polycrystalline diamond composite sheet, and the salt sheet and the carbon sheet are both located in the carbon tube; a metal sheet is provided on the outside of the carbon tube, the metal sheet covers the end face of the dolomite ring and the side of the carbon sheet away from the salt sheet, and a metal plug for conduction is provided on the side of the metal sheet away from the carbon sheet; the metal plug and the metal sheet are both located in the pyrophyllite shell.

[0004] However, the above-mentioned assembly structure still has some shortcomings in actual use. The most obvious one is that although the setting of dolomite rings and pyrophyllite rings can effectively reduce the heat dissipation during the synthesis process of the polycrystalline diamond composite sheet, when the polycrystalline diamond composite material is actually heated, the heat will be concentrated on the upper end surface of the polycrystalline diamond composite material, and the polycrystalline diamond composite material as a whole cannot be heated more evenly. Especially when synthesizing thickened polycrystalline diamond composite sheets, the inability to heat evenly will have a great impact on the quality of subsequent polycrystalline diamond composite products.

[0005] Therefore, it is necessary to invent an assembly structure of a thickened polycrystalline diamond composite sheet to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an assembly structure of a thickened polycrystalline diamond composite sheet, which is provided with a uniform heating mechanism so that after the sealing mechanism transfers the current to four heating sheets and multiple heating rings, the four heating sheets and multiple heating rings continue to generate heat, the four heating sheets heat the two ends of the thickened polycrystalline diamond composite sheet, and the multiple heating rings heat the outer wall of the thickened polycrystalline diamond composite sheet. During the heating process, multiple insulation tubes perform insulation operations to prevent the temperature from losing too quickly, so as to solve the problem proposed in the above background technology that although the setting of dolomite rings and pyrophyllite rings is used, it can effectively reduce the dissipation of heat during the synthesis process of the polycrystalline diamond composite sheet, but when the polycrystalline diamond composite material is actually heated, the heat will be concentrated on the upper end surface of the polycrystalline diamond composite material, and the polycrystalline diamond composite material cannot be heated more evenly as a whole, especially when the thickened polycrystalline diamond composite sheet is synthesized, the inability to heat evenly will have a greater impact on the quality of the subsequent polycrystalline diamond composite material finished product.

[0007] According to one aspect of the present disclosure, the following technical solution is provided: an assembly structure of a thickened polycrystalline diamond compact, comprising:

[0008] A pyrophyllite shell, wherein the pyrophyllite shell is used to accommodate the thickened polycrystalline diamond composite sheet, the uniform heating mechanism and the blocking mechanism;

[0009] A thickened polycrystalline diamond composite sheet, wherein the thickened polycrystalline diamond composite sheet is used to form a thickened polycrystalline diamond composite sheet finished product;

[0010] A uniform heating mechanism, wherein the uniform heating mechanism is used to uniformly heat the thickened polycrystalline diamond composite sheet;

[0011] The uniform heating mechanism comprises a heating sheet, a heating ring and a heat preservation tube;

[0012] There are four heating sheets, which are stacked at both ends of the thickened polycrystalline diamond composite sheet, and there are multiple heating rings and insulation tubes. The multiple heating rings are stacked in the vertical direction inside the pyrophyllite shell and sleeved on the outside of the thickened polycrystalline diamond composite sheet and the four heating sheets. The multiple insulation tubes are evenly fixed and nested in the pyrophyllite shell in an annular shape, and the insulation tubes are located outside the multiple heating rings; and

[0013] Two sets of blocking mechanisms are used to block the end openings of the pyrophyllite shell.

[0014] According to an assembly structure of a thickened polycrystalline diamond compact according to at least one embodiment of the present disclosure, the thickened polycrystalline diamond compact includes a cemented carbide substrate and a diamond layer.

[0015] According to the assembly structure of the thickened polycrystalline diamond compact of at least one embodiment of the present disclosure, a plurality of diamond layers are provided, and the plurality of diamond layers are stacked and arranged on top of the cemented carbide substrate.

[0016] According to the assembly structure of the thickened polycrystalline diamond compact of at least one embodiment of the present disclosure, the sealing mechanism includes a pressure transmission plate, a steel cap plug and a pyrophyllite ring.

[0017] According to the assembly structure of the thickened polycrystalline diamond composite sheet of at least one embodiment of the present disclosure, the pressure transmission plate is slidably arranged inside the talc shell and fits with the adjacent heating plate, heating ring and insulation pipe, the steel cap plug is detachably arranged on the inner end of the talc shell, and the talc ring is sleeved on the outside of the steel cap plug and is located between the pressure transmission plate and the steel cap plug.

[0018] Technical effects and advantages of the utility model:

[0019] The utility model is provided with a uniform heating mechanism, so that after the sealing mechanism transmits current to the four heating plates and the multiple heating rings, the four heating plates and the multiple heating rings continue to generate heat, the four heating plates heat the two ends of the thickened polycrystalline diamond composite sheet, and the multiple heating rings heat the outer wall of the thickened polycrystalline diamond composite sheet. During the heating process, multiple insulation tubes perform insulation operations to prevent the temperature from losing too quickly. Compared with the same type of devices in the prior art, the utility model can effectively reduce the heat dissipation during the synthesis process of the thickened polycrystalline diamond composite sheet, and at the same time, the two ends of the thickened polycrystalline diamond composite sheet and the outer wall of the thickened polycrystalline diamond composite sheet can achieve uniform heating of the thickened polycrystalline diamond composite sheet, thereby improving the synthesis speed of the thickened polycrystalline diamond composite sheet while ensuring the quality of the finished thickened polycrystalline diamond composite material. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0021] Figure 1 It is a schematic diagram of the overall structure of the assembly structure of a thickened polycrystalline diamond compact according to one embodiment of the present disclosure.

[0022] The specific reference numerals in the figure are:

[0023] 1. Pyrophyllite shell;

[0024] 2. Thickened polycrystalline diamond composite sheet; 21. Cemented carbide substrate; 22. Diamond layer;

[0025] 3. Uniform heating mechanism; 31. Heating sheet; 32. Heating ring; 33. Insulation tube;

[0026] 4. Sealing mechanism; 41. Pressure transmission plate; 42. Steel cap plug; 43. Pyrophyllite ring. DETAILED DESCRIPTION

[0027] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged without departing from the technical concept of the present disclosure.

[0030] The use of cross-hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the described order. In addition, the same figure numbers represent the same components.

[0031] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0032] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0033] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0034] Figure 1 It is a schematic diagram of the overall structure of the assembly structure of a thickened polycrystalline diamond compact according to one embodiment of the present disclosure.

[0035] like Figure 1 As shown, the assembly structure of the thickened polycrystalline diamond compact of the present disclosure may include: a pyrophyllite shell 1, a thickened polycrystalline diamond compact 2, a uniform heating mechanism 3, a blocking mechanism 4 and other components.

[0036] like Figure 1 As shown, in the present disclosure, the thickened polycrystalline diamond compact 2 includes a cemented carbide substrate 21 and a diamond layer 22 , wherein a plurality of diamond layers 22 are provided, and the plurality of diamond layers 22 are stacked and arranged on top of the cemented carbide substrate 21 .

[0037] like Figure 1As shown, in a preferred embodiment, the uniform heating mechanism 3 includes a heating plate 31, a heating ring 32 and an insulation tube 33, wherein four heating plates 31 are provided, and the four heating plates 31 are respectively stacked at both ends of the thickened polycrystalline diamond composite sheet 2, and multiple heating rings 32 and insulation tubes 33 are provided. Multiple heating rings 32 are stacked in the vertical direction inside the talc shell 1 and are sleeved on the outside of the thickened polycrystalline diamond composite sheet 2 and the four heating plates 31. Multiple insulation tubes 33 are uniformly fixed and nested in the talc shell 1 in an annular shape, and the insulation tubes 33 are located on the outside of multiple heating rings 32.

[0038] Therefore, after the sealing mechanism 4 transmits the current to the four heating plates 31 and the multiple heating rings 32, the four heating plates 31 and the multiple heating rings 32 continue to generate heat, the four heating plates 31 heat the two ends of the thickened polycrystalline diamond composite sheet 2, and the multiple heating rings 32 heat the outer wall of the thickened polycrystalline diamond composite sheet 2. During the heating process, the multiple insulation tubes 33 perform insulation operations to prevent the temperature from losing too quickly.

[0039] like Figure 1 As shown, in the present disclosure, the sealing mechanism 4 includes a pressure transmission plate 41, a steel cap plug 42 and a talc ring 43, wherein the pressure transmission plate 41 is slidably arranged inside the talc shell 1 and is in contact with the adjacent heating plate 31, heating ring 32 and insulation tube 33, the steel cap plug 42 is detachably arranged on the inner end of the talc shell 1, and the talc ring 43 is sleeved on the outside of the steel cap plug 42 and is located between the pressure transmission plate 41 and the steel cap plug 42.

[0040] Therefore, after the steel cap plug 42 is pressurized, the pressure is transmitted to the thickened polycrystalline diamond composite sheet 2 through the pressure transmission plate 41 and the heating plate 31, so that the continuously heated thickened polycrystalline diamond composite sheet 2 is in a high pressure state. At the same time, the steel cap plug 42 can transmit the current to the heating plate 31 and multiple heating rings 32 through the pressure transmission plate 41.

[0041] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. An assembly structure of a thickened polycrystalline diamond composite sheet, characterized in that: include: A pyrophyllite shell, wherein the pyrophyllite shell is used to accommodate the thickened polycrystalline diamond composite sheet, the uniform heating mechanism and the blocking mechanism; A thickened polycrystalline diamond composite sheet, wherein the thickened polycrystalline diamond composite sheet is used to form a thickened polycrystalline diamond composite sheet finished product; A uniform heating mechanism, wherein the uniform heating mechanism is used to uniformly heat the thickened polycrystalline diamond composite sheet; The uniform heating mechanism comprises a heating sheet, a heating ring and a heat preservation tube; There are four heating sheets, which are stacked at both ends of the thickened polycrystalline diamond composite sheet, and there are multiple heating rings and insulation tubes. The multiple heating rings are stacked in the vertical direction inside the pyrophyllite shell and sleeved on the outside of the thickened polycrystalline diamond composite sheet and the four heating sheets. The multiple insulation tubes are evenly fixed and nested in the pyrophyllite shell in an annular shape, and the insulation tubes are located outside the multiple heating rings; and Two sets of blocking mechanisms are used to block the end openings of the pyrophyllite shell.

2. The assembly structure of the thickened polycrystalline diamond compact according to claim 1, characterized in that: The thickened polycrystalline diamond composite sheet comprises a cemented carbide substrate and a diamond layer.

3. The assembly structure of the thickened polycrystalline diamond compact according to claim 2, characterized in that: A plurality of diamond layers are provided, and the plurality of diamond layers are stacked and arranged on the top of the cemented carbide substrate.

4. The assembly structure of the thickened polycrystalline diamond compact according to claim 3, characterized in that: The blocking mechanism comprises a pressure transmission plate, a steel cap plug and a pyrophyllite ring.

5. The assembly structure of the thickened polycrystalline diamond compact according to claim 4, characterized in that: The pressure transmission plate is slidably arranged inside the pyrophyllite shell and fits with the adjacent heating plate, heating ring and insulation pipe. The steel cap plug is detachably arranged on the inner end of the pyrophyllite shell. The pyrophyllite ring is sleeved on the outside of the steel cap plug and is located between the pressure transmission plate and the steel cap plug.

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