CN220057036U - Sealing cobalt removing device for composite sheet - Google Patents
Sealing cobalt removing device for composite sheet Download PDFInfo
- Publication number
- CN220057036U CN220057036U CN202321613212.8U CN202321613212U CN220057036U CN 220057036 U CN220057036 U CN 220057036U CN 202321613212 U CN202321613212 U CN 202321613212U CN 220057036 U CN220057036 U CN 220057036U
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- China
- Prior art keywords
- outer layer
- lower cover
- sealing
- inner layer
- sealing ring
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- 238000007789 sealing Methods 0.000 title claims abstract description 64
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 239000010941 cobalt Substances 0.000 title claims abstract description 23
- 229910017052 cobalt Inorganic materials 0.000 title claims abstract description 23
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 239000002253 acid Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 56
- 229910003460 diamond Inorganic materials 0.000 description 10
- 239000010432 diamond Substances 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model discloses a sealing cobalt-removing device of a composite sheet, which comprises an outer layer upper cover, an outer layer lower cover and an outer layer intermediate body, wherein openings of the outer layer upper cover and the outer layer lower cover are opposite, two ends of the outer layer intermediate body respectively extend into the outer layer upper cover and the outer layer lower cover, and the outer layer intermediate body, the outer layer upper cover and the outer layer lower cover form a containing space; the inner layer middle body is positioned in the outer layer middle body, and a through hole is formed in the middle of the inner layer middle body in a penetrating manner; the outer layer sealing system is arranged, so that the shrinkage force is enhanced, the gap at the bottom is eliminated, acid liquor is prevented from flowing into the accommodating groove to damage the non-upper end position of the composite sheet, the inner layer sealing system is mainly made of corrosion-resistant materials, the sealing effect is good, a high-pressure environment is formed at a high temperature, and the cobalt removal process is promoted.
Description
Technical Field
The utility model relates to the technical field of cobalt removal of polycrystalline diamond compacts, in particular to a sealing cobalt removal device of a compact.
Background
Cobalt is a key element in the synthesis process of polycrystalline diamond, plays roles in wetting, pressure transmission, dissolution and recrystallization, and plays a vital role in the formation and growth of D-D bonds and even in redistribution of residual stress in the later stage of synthesis; however, when producing polycrystalline diamond, the service life and performance of the polycrystalline diamond are weakened due to the negative effects of thermal expansion, thermal catalysis, thermal oxidation and the like of cobalt, and in order to improve the performance of the polycrystalline diamond, the polycrystalline diamond needs to be subjected to cobalt removal treatment. The cobalt removal mode is disclosed in the cobalt removal/tungsten removal method of the polycrystalline diamond compact disclosed in DD bonding type polycrystalline diamond preparation and cobalt removal technical research and a Chinese patent with the patent number of CN 114959710A.
In the cobalt removal process, acid liquor with extremely strong corrosiveness is required to be used, and in order to ensure the integrity of the synthesized product, a device with better sealing is required to be used for completing cobalt removal.
The common sealing scheme at present is divided into a single-layer seal [1] and a double-layer seal [2], wherein the single-layer seal has small shrinkage force, a gap is formed at the bottom, acid liquor flows to the bottom, corrosion of a synthesized product is easy to cause, and the consumption of the acid liquor is large and is not environment-friendly; the tightness of the double-layer seal is improved, but the whole volume after the seal is larger, and a high-temperature and high-pressure cobalt removal environment cannot be provided.
Reference is made to:
[1] shao Huali DD-bonded polycrystalline diamond preparation and decobalting technical research [ D ]. Zhengzhou: university of Henan industry, 2016.
[2] Tian Saihang, wang Caili method for decobalting/detungstenizing polycrystalline diamond compacts [ P ]. CN114959710A, 2022-08-30.
Disclosure of Invention
The utility model aims to provide a sealing cobalt-removing device of a composite sheet, and aims to solve the problems that the existing single-layer cobalt-removing sealing shrinkage force is small, the sealing is insufficient, the acid liquid consumption is large, and the double-layer cobalt-removing sealing cannot provide a high-temperature high-pressure environment.
The utility model is realized in the following way: the sealing cobalt-removing device of the composite sheet comprises an outer layer upper cover, an outer layer lower cover and an outer layer intermediate body, wherein openings of the outer layer upper cover and the outer layer lower cover are opposite, two ends of the outer layer intermediate body respectively extend into the outer layer upper cover and the outer layer lower cover, and the outer layer intermediate body, the outer layer upper cover and the outer layer lower cover form an accommodating space; the inner layer upper cover is arranged at the upper end of the inner layer intermediate body, the upper side surface of the inner layer upper cover is contacted with the outer layer upper cover, and another sealing ring is arranged between the lower side surface and the inner layer intermediate body; a composite sheet is arranged in the inner cavity.
Preferably, the upper side of the outer layer lower cover is provided with a sinking groove, and the smaller diameter of the sinking groove is slightly larger than the outer diameter of the inner layer lower cover.
Preferably, the upper end of the outer side wall of the outer lower cover is fixedly connected with an internal thread cylinder, the outer upper cover is provided with a fastening screw in a penetrating way, and the lower end of the fastening screw is inserted into the internal thread cylinder.
Preferably, the outer intermediate body comprises an annular plate and a reinforcing annular plate, the reinforcing annular plate is arranged in the middle of the outer side of the annular plate, the height of the reinforcing annular plate is smaller than the distance between the outer lower cover and the outer upper cover, and the outer diameter of the annular plate is slightly smaller than the inner diameters of the outer lower cover and the outer upper cover.
Preferably, the annular groove is formed in the lower end of the inner side wall of the annular plate, and the outer side wall of the inner layer intermediate body is of a stepped structure with the thin upper part and the thick lower part and is matched with the inner side wall of the annular plate.
Preferably, the upper end of the inner layer intermediate body is provided with a first sealing ring groove, the lower end of the inner layer intermediate body is provided with a second sealing ring groove, a sealing ring is arranged in the sealing ring groove, and the height of the sealing ring is greater than the depth of the first sealing ring groove.
Preferably, the lower end face of the inner layer intermediate body is fixedly connected with a first annular bulge, the inner diameter of the first annular bulge is equal to the diameter of the second sealing ring groove, the upper end of the inner layer lower cover is provided with a second annular bulge, the inner diameter is equal to the diameter of the containing groove, the outer diameter is slightly smaller than the inner diameter of the first annular bulge, and the upper end extends into the second sealing ring groove to extrude the sealing ring.
Compared with the prior art, the utility model has the beneficial effects that:
1. the outer layer sealing system is arranged, so that the shrinkage force is enhanced, the gap at the bottom is eliminated, acid liquor is prevented from flowing into the accommodating groove to damage the non-upper end position of the composite sheet, the inner layer sealing system is mainly made of corrosion-resistant materials, the sealing effect is good, a high-pressure environment is formed at a high temperature, and the cobalt removal process is promoted.
2. The utility model is provided with the internal cavity with smaller volume, thereby reducing the use amount of acid liquor and reducing environmental pollution.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the upper and lower outer covers of the present utility model;
FIG. 3 is a schematic structural view of an outer intermediate of the present utility model;
FIG. 4 is a schematic view of the structure of the inner upper cover and the inner intermediate of the present utility model;
FIG. 5 is a schematic structural view of an inner layer intermediate of the present utility model;
fig. 6 is a schematic structural view of the present utility model.
In the figure: 1. an outer upper cover; 11. fastening a screw; 2. an outer layer intermediate; 21. an annular plate; 22. reinforcing the annular plate; 23. an annular groove; 3. an outer layer lower cover; 31. an internal thread cylinder; 32. sinking grooves; 4. an inner layer upper cover; 5. an inner layer intermediate; 51. a first seal ring groove; 52. a first annular projection; 53. a second seal ring groove; 6. an inner layer lower cover; 61. a second annular projection; 62. a receiving groove; 7. a composite sheet; 8. an internal cavity; 9. and (3) sealing rings.
The specific embodiment is as follows:
in the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The following is further described with reference to the accompanying drawings and specific examples:
as shown in fig. 1, a sealing cobalt-removing device for a composite sheet comprises an outer layer sealing system and an inner layer sealing system, wherein the outer layer sealing system wraps the inner layer sealing system.
As shown in fig. 2 and 3, the outer sealing system comprises an outer upper cover 1, an outer lower cover 3 and an outer intermediate body 2, a sinking groove 32 is formed in the upper side surface of the outer lower cover 3, an inner thread cylinder 31 is fixedly connected to the upper end of the outer side wall, a fastening screw 11 is arranged on the outer upper cover 1 in a penetrating mode, openings of the outer upper cover 1 and the outer lower cover 3 are opposite, and threads at the lower end of the fastening screw 11 are inserted into the inner thread cylinder 31. The outer intermediate body 2 comprises an annular plate 21 and a reinforcing annular plate 22, the reinforcing annular plate 22 is arranged in the middle of the outer side of the annular plate 21, the height of the reinforcing annular plate is smaller than the distance between the outer lower cover 3 and the outer upper cover 1, the outer diameter of the annular plate 21 is slightly smaller than the inner diameters of the outer lower cover 3 and the outer upper cover 1, and two ends of the annular plate extend into the outer upper cover 1 and the outer lower cover 3 respectively and form an accommodating space with the outer upper cover 1 and the outer lower cover 3. The annular plate 21 is provided with an annular recess 23 at the lower end of the inner side wall.
As shown in fig. 4, 5 and 6, the inner sealing system is located in the accommodation space and includes an inner upper cover 4, an inner intermediate body 5 and an inner lower cover 6. The diameter of the sinking groove 32 is slightly smaller than the outer diameter of the inner layer lower cover 6, the inner layer lower cover 6 is located in the outer layer lower cover 3, the accommodating groove 62 is formed in the upper side face of the inner layer lower cover 6, the second annular protrusion 61 is arranged at the upper end of the inner layer lower cover 6, and the inner diameter is equal to the diameter of the accommodating groove 62. The outer side wall of the inner layer intermediate body 5 is of a stepped structure with a thin upper part and a thick lower part, and is positioned inside the outer layer intermediate body 2, and the outer side wall of the inner layer intermediate body 5 is matched with the inner side wall of the annular plate 21. The middle part of inlayer midbody 5 link up and is provided with the through-hole, and the upper end is provided with first sealed annular 51, and the lower extreme is provided with second sealed annular 53, is provided with sealing washer 9 in the sealed annular, and the height of sealing washer 9 is greater than the degree of depth of first sealed annular 51, and the lower terminal surface fixedly connected with first annular bulge 52 of inlayer midbody 5, the internal diameter of first annular bulge 52 equals with the diameter of second sealed annular 53. The through hole and the containing groove 62 are opposite to each other to form an inner cavity 8, a composite sheet 7 is arranged in the inner cavity 8, the outer diameter of the second annular bulge 61 is slightly smaller than the inner diameter of the first annular bulge 52, and the upper end of the second annular bulge stretches into the second sealing ring groove 53 to extrude the sealing ring 9.
The inner upper cover 4 is arranged at the upper end of the inner intermediate body 5, the upper side surface is contacted with the outer upper cover 1, and the lower side surface presses the sealing ring 9.
When cobalt removal processing is performed, the inner layer lower cover 6 is placed in the outer layer lower cover 3, a worker places the composite sheet 7 in the accommodating groove 62, the upper end of the composite sheet 7 protrudes out of the second annular protrusion 61, and the sealing ring 9 is sleeved on the protruding portion of the composite sheet 7. After the composite sheet 7 is stably placed, the inner layer intermediate 5 is placed on the inner layer lower cover 6, the first annular bulge 52 is sleeved on the second annular bulge 61 and extrudes the sealing ring 9 to form an inner cavity 8, the outer layer intermediate 2 is sleeved on the outer side of the inner layer intermediate 5, the lower end of the outer layer intermediate 2 is inserted into the outer layer lower cover 3, and acid liquor is filled into the inner cavity 8. After the acid liquid is filled, the inner upper cover 4 is placed at the upper end of the inner intermediate body 5 and presses the sealing ring 9, the outer upper cover 1 is seated on the inner upper cover 4, the upper end of the outer intermediate body 2 is inserted into the outer upper cover 1, and the lower end of the fastening screw 11 is inserted into the internal thread cylinder 31. The arrangement of the outer layer sealing system enhances the shrinkage force, eliminates the gap at the bottom, avoids acid liquid flowing into the accommodating groove 62 to damage the non-upper end position of the composite sheet 7, and the inner layer sealing system is mainly made of corrosion-resistant materials, has a good sealing effect, forms a high-pressure environment at high temperature and promotes the cobalt removal process. Because the volume of the inner cavity 8 is small, the use amount of acid liquor is reduced, and the environmental pollution is reduced.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The sealing cobalt removing device of the composite sheet is characterized by comprising an outer layer upper cover (1), an outer layer lower cover (3) and an outer layer intermediate body (2), wherein openings of the outer layer upper cover (1) and the outer layer lower cover (3) are opposite, two ends of the outer layer intermediate body (2) respectively extend into the outer layer upper cover (1) and the outer layer lower cover (3), and an accommodating space is formed by the outer layer intermediate body (2), the outer layer upper cover (1) and the outer layer lower cover (3); the inner layer upper cover (4), the inner layer intermediate (5) and the inner layer lower cover (6) are positioned in the accommodating space, the inner layer lower cover (6) is located in the outer layer lower cover (3), the upper side face is provided with an accommodating groove (62), the inner layer intermediate (5) is positioned in the outer layer intermediate (2), the middle part is communicated with the accommodating groove (62) to form an inner cavity (8), a sealing ring (9) is arranged between the inner layer intermediate (5) and the inner layer lower cover (6), the inner layer upper cover (4) is arranged at the upper end of the inner layer intermediate (5), the upper side face is in contact with the outer layer upper cover (1), and another sealing ring (9) is arranged between the lower side face and the inner layer intermediate (5); and a composite sheet (7) is arranged in the inner cavity (8).
2. The sealing cobalt removing device of the composite sheet according to claim 1, wherein a sinking groove (32) is arranged on the upper side surface of the outer layer lower cover (3), and the smaller diameter of the sinking groove (32) is slightly larger than the outer diameter of the inner layer lower cover (6).
3. The sealing cobalt removing device of the composite sheet according to claim 1, wherein an inner thread cylinder (31) is fixedly connected to the upper end of the outer side wall of the outer layer lower cover (3), the outer layer upper cover (1) is provided with a fastening screw (11) in a penetrating manner, and the lower end of the fastening screw (11) is inserted into the inner thread cylinder (31) in a threaded manner.
4. The sealing cobalt-removing device of the composite sheet according to claim 1, wherein the outer layer intermediate body (2) comprises an annular plate (21) and a reinforcing annular plate (22), the reinforcing annular plate (22) is arranged in the middle of the outer side of the annular plate (21) and is smaller than the distance between the outer layer lower cover (3) and the outer layer upper cover (1), and the outer diameter of the annular plate (21) is slightly smaller than the inner diameters of the outer layer lower cover (3) and the outer layer upper cover (1).
5. The sealing cobalt removing device of the composite sheet according to claim 4, wherein an annular groove (23) is formed at the lower end of the inner side wall of the annular plate (21), and the outer side wall of the inner layer intermediate body (5) is of a stepped structure with a thin upper part and a thick lower part and is matched with the inner side wall of the annular plate (21).
6. The sealing cobalt removing device of the composite sheet according to claim 1, wherein a first sealing ring groove (51) is arranged at the upper end of the inner layer intermediate body (5), a second sealing ring groove (53) is arranged at the lower end of the inner layer intermediate body, a sealing ring (9) is arranged in the sealing ring groove, and the height of the sealing ring (9) is larger than the depth of the first sealing ring groove (51).
7. The sealing cobalt removing device of the composite sheet according to claim 6, wherein the lower end surface of the inner layer intermediate body (5) is fixedly connected with a first annular protrusion (52), the inner diameter of the first annular protrusion (52) is equal to the diameter of a second sealing ring groove (53), the upper end of the inner layer lower cover (6) is provided with a second annular protrusion (61), the inner diameter is equal to the diameter of the containing groove (62), the outer diameter is slightly smaller than the inner diameter of the first annular protrusion (52), and the upper end extends into the second sealing ring groove (53) to squeeze the sealing ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321613212.8U CN220057036U (en) | 2023-06-25 | 2023-06-25 | Sealing cobalt removing device for composite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321613212.8U CN220057036U (en) | 2023-06-25 | 2023-06-25 | Sealing cobalt removing device for composite sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220057036U true CN220057036U (en) | 2023-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321613212.8U Active CN220057036U (en) | 2023-06-25 | 2023-06-25 | Sealing cobalt removing device for composite sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220057036U (en) |
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2023
- 2023-06-25 CN CN202321613212.8U patent/CN220057036U/en active Active
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