CN221085561U - Composite conductive plug for synthesizing diamond - Google Patents
Composite conductive plug for synthesizing diamond Download PDFInfo
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- CN221085561U CN221085561U CN202322370002.7U CN202322370002U CN221085561U CN 221085561 U CN221085561 U CN 221085561U CN 202322370002 U CN202322370002 U CN 202322370002U CN 221085561 U CN221085561 U CN 221085561U
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- Prior art keywords
- ring
- graphite
- graphite layer
- conductive plug
- conductive
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- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 21
- 239000010432 diamond Substances 0.000 title claims abstract description 21
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 230000002194 synthesizing effect Effects 0.000 title description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 84
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 63
- 239000010439 graphite Substances 0.000 claims abstract description 63
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 239000010459 dolomite Chemical group 0.000 claims abstract description 23
- 229910000514 dolomite Chemical group 0.000 claims abstract description 23
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000002679 ablation Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052903 pyrophyllite Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- Resistance Heating (AREA)
Abstract
The composite conductive plug for the synthetic diamond is characterized in that the conductive ring and the annular cylinder are arranged around the periphery of the graphite tube and comprise a graphite ring and a dolomite ring, so that the traditional conductive plug is changed, an upper graphite layer on the upper end surface of the dolomite ring is tightly contacted with a circular steel plate, heating current can be effectively transmitted to a lower graphite layer so as to reach a synthetic cavity, and current loss is effectively avoided; the lower graphite layer of the lower end face of the dolomite ring is fully contacted with the central heating carbon paper sheet to conduct electricity, current is shunted to the periphery of the synthetic column core through the lower graphite layer, central heating and peripheral heating are synchronously carried out, the temperature difference of the synthetic column core is eliminated, the temperature and the pressure are well matched, the product quality is improved, and the diamond with higher quality is manufactured.
Description
Technical Field
The utility model belongs to the technical field of superhard materials, and particularly relates to a composite conductive plug for synthetic diamond.
Background
The conductive steel rings of the traditional diamond assembly block are doctor cap type, bowl type and the like. At present, after an indirect heating method is adopted in the diamond industry, a doctor cap type conductive steel ring is mostly selected and used, the doctor cap type conductive steel ring is composed of an upper end circular steel plate and a circular steel cylinder perpendicular to the circular steel plate, pyrophyllite or dolomite is filled in the circular steel cylinder, and the outside of the circular steel cylinder is filled by a combination of a dolomite ring or a dolomite ring and a pyrophyllite ring.
However, the conductive steel ring only carries out current transmission through the middle round steel cylinder in production, the contact area between the conductive steel ring and graphite carbon paper is small, and the conductive efficiency is low; and the conductive steel ring metal material dissipates heat quickly, the current has larger loss in the transmission process, and the conductivity is reduced. In addition, the high temperature generated by low-voltage high-current heating is not fully considered in the design of the conductive steel ring, the high-temperature of the contact part of the conductive steel ring and a heating material is low in heat conduction and high in current density, and the synthesized conductive round steel cylinder port can generate ablation, so that the high-temperature high-voltage synthesis effect is adversely affected.
Aiming at the small contact area of the conductive steel ring and graphite carbon paper in the current transmission process, the conductive efficiency is low; the conductive steel ring metal material has the advantages of fast heat dissipation, reduced conductivity and ablation phenomenon of the synthesized conductive round steel cylinder opening, and the structure of the conventional conductive plug needs to be changed to design a novel composite conductive plug.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides the composite conductive plug for synthesizing diamond, wherein the modified conductive plug is stable in heating resistance, provides large-area stable current transmission conditions for synthesizing superhard materials, and does not generate conductive ring ablation after synthesis.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The composite conductive plug for the synthetic diamond comprises a conductive ring and an annular cylinder, wherein the conductive ring comprises a conductive steel plate and a graphite pipe which is perpendicular to the conductive steel plate, and the graphite pipe is filled with dolomite;
The annular cylinder is circumferentially arranged on the periphery of the graphite tube and comprises a graphite ring and a dolomite ring, the graphite ring comprises an upper graphite layer and a lower graphite layer which are arranged at intervals, and the dolomite ring is pressed and arranged between the upper graphite layer and the lower graphite layer;
The upper graphite layer is closely attached to the conductive steel plate, and the lower graphite layer is in contact with the heating carbon paper sheet.
The graphite tubes are embedded in or bonded to the conductive steel plate.
The graphite ring and the dolomite ring are coaxially and equiradially arranged.
The annular cylinder is arranged at the same height as the graphite tube.
The thickness of the upper graphite layer is 1-2 mm.
The thickness of the lower graphite layer is 1-2 mm.
The conductive steel plate is a round steel plate.
The beneficial effects of the utility model are as follows:
(1) According to the composite conductive plug for the synthetic diamond, the conductive ring and the annular cylinder are arranged, the annular cylinder is circumferentially arranged on the periphery of the graphite tube and comprises the graphite ring and the dolomite ring, the traditional conductive plug is changed, the upper graphite layer on the upper end face of the dolomite ring is tightly contacted with the round steel plate, and heating current can be effectively transmitted to the lower graphite layer so as to reach the synthetic cavity, and current loss is effectively avoided; the lower graphite layer of the lower end face of the dolomite ring is fully contacted with the central heating carbon paper sheet to conduct electricity, current is shunted to the periphery of the synthetic column core through the lower graphite layer, central heating and peripheral heating are synchronously carried out, the temperature difference of the synthetic column core is eliminated, the temperature and the pressure are well matched, the product quality is improved, and the diamond with higher quality is manufactured.
(2) The graphite material has low price, low manufacturing cost, better conductivity than the metal material, high thermal melting point of graphite, higher bearing temperature and no ablation phenomenon of the graphite heating pipe orifice. The resistance on the graphite is consistent, the heat distribution is uniform, and the phenomenon of cracking top hammer is not easy to occur. The novel conductive plug not only ensures that graphite carbon paper is well utilized and electric energy is saved and the electric energy utilization rate is improved, but also reduces the loss of the hard alloy top hammer due to the improvement of the heat conducting property, thereby bringing benefits to enterprises.
(3) The modified conductive plug has stable heating resistance, uniform temperature, high heating efficiency and long duration.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a bottom view of fig. 1.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
The utility model provides a composite conductive plug for synthetic diamond, as shown in fig. 1 and 2.
The utility model provides a compound conductive plug for synthetic diamond, includes conducting ring and annular cylinder, the conducting ring includes conducting steel plate 1 and perpendicular to conducting steel plate setting's graphite pipe 5, and graphite pipe 5 embedding or bonding are set up in conducting steel plate 1, and graphite pipe 5 inner loop is inside to be filled by dolomite 4. In the present embodiment, the conductive steel plate 1 is a circular steel plate.
The annular cylinder is circumferentially arranged on the periphery of the graphite tube and comprises a graphite ring and a dolomite ring 6, the graphite ring comprises an upper graphite layer 2 and a lower graphite layer 3 which are arranged at intervals, and the dolomite ring 6 is arranged between the upper graphite layer and the lower graphite layer in a pressing mode; the upper graphite layer 2 is tightly attached to the conductive steel plate 1, and the lower graphite layer 3 is in contact with the heating carbon paper sheet; the annular column body is arranged at the same height as the graphite tube 5.
The graphite ring and the dolomite ring 6 are coaxially and equiradially arranged, the thickness of the upper graphite layer 2 is 1-2mm, and the thickness of the lower graphite layer 3 is also 1-2mm.
The conductive plug changes the traditional conductive plug, the upper graphite layer 2 on the upper end surface of the dolomite ring 6 is in close contact with the round steel plate, and heating current can be effectively transmitted to the lower graphite layer 3 so as to reach the synthesis cavity, thereby effectively avoiding current loss; the lower graphite layer 3 of the lower end face of the dolomite ring is fully contacted with the central heating carbon paper sheet to conduct electricity, current is shunted to the periphery of the synthetic column core through the lower graphite layer 3, central heating and peripheral heating are synchronously carried out, the temperature difference of the synthetic column core is eliminated, the temperature and the pressure are well matched, the product quality is improved, and the diamond with higher quality is manufactured.
The graphite material has low price, low manufacturing cost, better conductivity than the metal material, high thermal melting point of graphite, higher bearing temperature and no ablation phenomenon of the graphite heating pipe orifice. The resistance on the graphite is consistent, the heat distribution is uniform, and the phenomenon of cracking top hammer is not easy to occur. The novel conductive plug not only ensures that graphite carbon paper is well utilized and electric energy is saved and the electric energy utilization rate is improved, but also reduces the loss of the hard alloy top hammer due to the improvement of the heat conducting property, thereby bringing benefits to enterprises.
The modified conductive plug has stable heating resistance, uniform temperature, high heating efficiency and long duration.
Where the terms "first," "second," and the like are used in this patent to define components, those skilled in the art will recognize: the use of "first" and "second" is for convenience only as well as to simplify the description of the present utility model, and the words described above are not meant to be limiting.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which are all within the scope of the claimed utility model. The scope of the utility model is defined by the appended claims and equivalents.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "center", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present utility model.
Claims (7)
1. The utility model provides a compound conductive plug for synthetic diamond, includes conducting ring and annular cylinder, its characterized in that: the conductive ring comprises a conductive steel plate and a graphite tube which is perpendicular to the conductive steel plate, and the graphite tube is filled with dolomite;
The annular cylinder is circumferentially arranged on the periphery of the graphite tube and comprises a graphite ring and a dolomite ring, the graphite ring comprises an upper graphite layer and a lower graphite layer which are arranged at intervals, and the dolomite ring is pressed and arranged between the upper graphite layer and the lower graphite layer;
The upper graphite layer is closely attached to the conductive steel plate, and the lower graphite layer is in contact with the heating carbon paper sheet.
2. A composite conductive plug for synthetic diamond according to claim 1, wherein: the graphite tubes are embedded in or bonded to the conductive steel plate.
3. A composite conductive plug for synthetic diamond according to claim 1, wherein: the graphite ring and the dolomite ring are coaxially and equiradially arranged.
4. A composite conductive plug for synthetic diamond according to any one of claims 1 to 3, wherein: the annular cylinder is arranged at the same height as the graphite tube.
5. A composite conductive plug for synthetic diamond according to claim 4, wherein: the thickness of the upper graphite layer is 1-2 mm.
6. A composite conductive plug for synthetic diamond according to claim 4, wherein: the thickness of the lower graphite layer is 1-2 mm.
7. A composite conductive plug for synthetic diamond according to claim 4, wherein: the conductive steel plate is a round steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322370002.7U CN221085561U (en) | 2023-09-01 | 2023-09-01 | Composite conductive plug for synthesizing diamond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322370002.7U CN221085561U (en) | 2023-09-01 | 2023-09-01 | Composite conductive plug for synthesizing diamond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221085561U true CN221085561U (en) | 2024-06-07 |
Family
ID=91311416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322370002.7U Active CN221085561U (en) | 2023-09-01 | 2023-09-01 | Composite conductive plug for synthesizing diamond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221085561U (en) |
-
2023
- 2023-09-01 CN CN202322370002.7U patent/CN221085561U/en active Active
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