CN2790573Y - Artificial diamond pressing die - Google Patents
Artificial diamond pressing die Download PDFInfo
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- CN2790573Y CN2790573Y CN 200520102322 CN200520102322U CN2790573Y CN 2790573 Y CN2790573 Y CN 2790573Y CN 200520102322 CN200520102322 CN 200520102322 CN 200520102322 U CN200520102322 U CN 200520102322U CN 2790573 Y CN2790573 Y CN 2790573Y
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- die
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- pressing die
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Abstract
The utility model relates to an artificial diamond pressing die, which comprises an upper die, a middle die, a lower die, cylinder bodies, pistons, an oil cavity, an oil hole and a valve, wherein the upper die, the middle die and the lower die are symmetrically arranged; the cylinder bodies and the pistons are arranged in the upper die and the lower die; the special oil is filled in the oil cavity; a pressure testing sensor is arranged in the oil cavity; a material cavity is arranged in the middle die and is isolated and closed by an inner sleeve and a heat resisting layer; the compressed graphite which is added with additive agent is arranged in the material cavity; a heat conducting wire is connected with an electrothermal element in the heat resisting layer; the heat conducting wire keeps the material cavity with high and constant temperature; the material cavity is provided with a temperature testing sensor. The utility model controls the high and constant pressure and the high and constant temperature by computer electronic numerical control during omnidistance. The crystal structure of the compressed graphite is changed to generate crystal particles under the condition of the durative high temperature and the durative high pressure. Then, the crystal particles are washed and burnished by high-speed ionized water. At least, pure and intact artificial diamond particles are made. The design adopts dual sealing, heating and pressing and is capable of keeping the relatively stable high temperature and the high pressure for a long time. The material cavity can be large so that large artificial diamond particles can be obtained. The closed equipment can avoid energy loss and have low cost.
Description
Technical field
The utility model relates to the diamond die for manufacturing.
Background technology
Diamond is in all substances, and hardness is the highest, in industrial its high rigidity of utilizing other hard material such as glass, agate etc. is processed.The synthetic of diamond mainly is by artificial high-pressure high-temperature environment, makes carbon atom variable density and permutation and combination again, thereby condenses into artificial diamond's stone granulate.But necessary strict controlled pressure, temperature and catalyst amount in manufacture process.The too high diamond quality of producing of temperature is very bad, does not perhaps have diamond to generate at all; The too low diamond of temperature can't generate.Top-quality diamond reaches 1430 ℃～1570 ℃, pressure in temperature and forms between 53000bar～65000bar; the particle of graphite can be under the alloy catalyst effect under these conditions; generate diamond crystal (if feed the gas of carbon containing simultaneously, can be faster) with 1 millimeter speed per hour as the methane uniform velocity.The desuperheat that will slowly reduce pressure after crystal generates, pure beautiful to guarantee particle integrity, color and luster.
General diamond production equipment is to have the cylinder of electric wire to heat from six in the face of raw material pressurize with six inner chambers, with alloy sheet as catalyst, general temperature reaches more than 1000 ℃, pressure is about 85Mpa, just can produce diamond through 17 minutes, diamond quality, color and luster and the particle produced like this only are applicable to the instrument that process industry is used, and the cost height, pollute greatly, and operational sequence is loaded down with trivial details." the diamond segment hot-die of corundum-aluminous refractory " of Chinese patent 95221275.7, its diamond particles of producing bonds and makes various grinding tools or cutter head, is used for the processing to hard material.
Because pressing die pressure is uncontrollable, do not quite in the material chamber, and big more because of the material chamber, the temperature of requirement is high more, pressure is big more, so the present domestic diamond that can only produce 1～2 carat, promptly enabling to extrude 4～5 carats of big diamonds also only is experimental data.And material chamber periphery damage parts is very fast, and its reason is exactly uncontrollable long high constant temperature (1430 ℃) and high constant voltage (5500Mpa).
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defective of prior art and a kind of diamond pressing die of guaranteeing high constant temperature, high constant voltage by the numerical control of computer electronics is provided.
Technical problem of the present utility model solves by following technical proposal:
A kind of diamond pressing die, this pressing die structure is symmetric configuration, adjacent parts is the male and fomale(M﹠F) combination, it comprises patrix, middle mould and counterdie, be provided with cylinder body in the described upper die and lower die, it in the cylinder body piston that compresses slippage by hydraulic press relatively, mould was isolated in the material chamber of sealing during compressed graphite material and additive were located at by refractory layer, the thermal conductive wire of the high constant temperature in maintenance material chamber is connected with the heating in the refractory layer, material is provided with temperature transducer in the chamber, refractory layer is outward and cylinder body, in the adjacent steel loop of mould, it is characterized in that described on, be provided with oil pocket between piston in the counterdie and the cylinder body, be filled with particular oils in the chamber, in be provided with load cell, simultaneously last, the counterdie die wall is provided with the oilhole that communicates with oil pocket, and oilhole is provided with valve, and working sensor whole process keeps high constant voltage and high constant temperature by the numerical control of computer electronics.
Be provided with the interior cover of alloy system between the thermal insulation layer in described outside mould and the material chamber.
Be equipped with insulating barrier in described upper and lower mould and middle mould, the alloy between the cover, between overlapping in upper and lower steel loop and the alloy.
Compared with prior art, characteristics of the present utility model are to adopt dual sealing heating pressurization from 360 degree are comprehensive to being compressed raw material, the numerical control of omnidistance computer electronics, adopted the oil pocket of guaranteeing high constant voltage, so can guarantee the accuracy of temperature and pressure, the equipment maximum temperature can reach more than 1430 ℃, pressure can reach more than the 5500Mpa, and,, make the diamond crystal that obtains bulky grain (10 carats) become possibility so the material chamber can be done greatly in long-time metastable high-temperature of inner control and high pressure, simultaneously because the closure of equipment, make HTHP be closed in working chamber inside, can avoid energy loss, help cost and reduce.
Description of drawings
Fig. 1 is the utility model sectional structure schematic diagram.
The specific embodiment
Below will be described in detail again the utility model by the accompanying drawing embodiment that provides.
As shown in Figure 1, its general structure of diamond pressing die is vertical upper and lower symmetric configuration, adjacent parts is the male and fomale(M﹠F) combination, form by patrix 1, middle mould 7 and counterdie 11 3 parts, be provided with cylinder body 4 in the upper die and lower die, be provided with the piston 2 that is compressed slippage by hydraulic press relatively in the cylinder body, the speed that piston moves is 0.01～1 millimeter/minute.Be provided with hollow toroid oil pocket 3 between piston and the cylinder body, be filled with particular oils in the chamber, this particular oils is a S34# Sweden oil, in be provided with load cell, simultaneously be provided with the oilhole 12 that communicates with oil pocket on the die wall of upper and lower mould, oilhole is provided with valve 13, and oil adds thus and emits, the keying of valve is guaranteed high constant voltage pressure in the chamber by the numerical control of computer electronics.
Being compressed raw material is the powdered graphite material, the catalyst that adds adopts raw metals such as nickel, manganese, being located at mould is isolated in the material chamber 10 of sealing by refractory layer 9, it is 80 millimeters of φ 22～φ, 110～400 millimeters specifications of length that diameter is made in the material chamber, the thermal conductive wire that keeps the high constant temperature in material chamber by the piston hole of preprocessing tap into refractory layer 5 in heating join, the mensuration of temperature is undertaken by temperature transducer, no matter be that load cell or temperature transducer are all made with platinum, work is omnidistance by the numerical control of computer electronics.
Outside refractory layer 9, be provided with steel loop 6, be provided with the interior cover 8 of alloy system between the thermal insulation layer 9 outside middle mould 7 and the material chamber, play location refractory layer 9, play the heat insulation effect simultaneously adjacent to cylinder body and middle mould.Also in upper and lower mould and middle mould, alloy between the cover, be equipped with insulating barrier 14 between the cover in upper and lower steel loop and the alloy, prevent that the mould peripheral component is charged, insulating barrier adopts the making of special insulation paper.Refractory layer 5 and 9 is made by high heat proof material, and heating generally adopts the stainless steel heating wire.
The manufacturing whole process of diamond is guaranteed high constant voltage and high constant temperature by the numerical control of computer electronics, interrupts as occurring mistake or energy supply in the program, and system can be out of service automatically, and close all inner running programs voluntarily.
The compressed graphite of the utility model is under the condition of high-temperature that continues and high pressure, its crystal structure is changed, after treating that particle is grown fully, promptly take out through high-speed ion water from mould material chamber crystal is cleaned polishing, the finished product that comes out will be pure, the complete fully valuable artificial diamond's stone granulate of value.The raw material that do not generate diamond are adopted gases such as hydrogen, oxygen reduce processing.
Claims (3)
1, a kind of diamond pressing die, this pressing die structure is symmetric configuration, adjacent parts is the male and fomale(M﹠F) combination, it comprises patrix (1), middle mould (7) and counterdie (11), be provided with cylinder body (4) in the described upper die and lower die, it in the cylinder body piston (2) that compresses slippage by hydraulic press relatively, mould was isolated in the material chamber (10) of sealing during compressed graphite material and additive were located at by refractory layer (9), the thermal conductive wire of the high constant temperature in maintenance material chamber is connected with the heating in the refractory layer (5), material is provided with temperature transducer in the chamber, refractory layer is outward and cylinder body, the middle adjacent steel loop (6) of mould, it is characterized in that described on, be provided with oil pocket (3) between piston (2) in the counterdie and the cylinder body (4), be filled with particular oils in the chamber, in be provided with load cell, simultaneously last, the counterdie die wall is provided with the oilhole (12) that communicates with oil pocket, and oilhole is provided with valve (13), and working sensor whole process keeps high constant voltage and high constant temperature by the numerical control of computer electronics.
2, diamond pressing die according to claim 1 is characterized in that the interior cover (8) of the alloy system that is provided with between mould (7) and material chamber (10) thermal insulation layer (9) outward in described.
3, diamond pressing die according to claim 1 and 2 is characterized in that in described upper and lower mould and middle mould, the alloy between the cover, is equipped with insulating barrier (14) between overlapping in upper and lower steel loop and the alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520102322 CN2790573Y (en) | 2005-05-20 | 2005-05-20 | Artificial diamond pressing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520102322 CN2790573Y (en) | 2005-05-20 | 2005-05-20 | Artificial diamond pressing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2790573Y true CN2790573Y (en) | 2006-06-28 |
Family
ID=36806654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520102322 Expired - Fee Related CN2790573Y (en) | 2005-05-20 | 2005-05-20 | Artificial diamond pressing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2790573Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398299A (en) * | 2009-12-17 | 2012-04-04 | 李强 | Novel two-side jacking machine |
| CN107376785A (en) * | 2017-08-10 | 2017-11-24 | 安庆市凯立金刚石科技有限公司 | A kind of diamond synthesizer |
-
2005
- 2005-05-20 CN CN 200520102322 patent/CN2790573Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398299A (en) * | 2009-12-17 | 2012-04-04 | 李强 | Novel two-side jacking machine |
| CN107376785A (en) * | 2017-08-10 | 2017-11-24 | 安庆市凯立金刚石科技有限公司 | A kind of diamond synthesizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NINGBO KANG XIN MACHINERY CO. Free format text: FORMER OWNER: NINGBO XIKEMENGTE DIAMOND CO., LTD. Effective date: 20081017 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081017 Address after: No. 8, West Mount Lu Road, Beilun, Zhejiang, Ningbo: 315800 Patentee after: Ningbo Kangxin Machinery Co., Ltd. Address before: Zhejiang province Ningbo Jingu Industrial Zone Yinzhou Road No. 108, zip code: 315194 Patentee before: Ningbo Xikemengte Diamond Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060628 Termination date: 20130520 |