CN117362037A - Cadmium sulfide target piece processing technology and split processing die - Google Patents
Cadmium sulfide target piece processing technology and split processing die Download PDFInfo
- Publication number
- CN117362037A CN117362037A CN202311328900.4A CN202311328900A CN117362037A CN 117362037 A CN117362037 A CN 117362037A CN 202311328900 A CN202311328900 A CN 202311328900A CN 117362037 A CN117362037 A CN 117362037A
- Authority
- CN
- China
- Prior art keywords
- cadmium sulfide
- microns
- target piece
- sheet
- hot pressing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 229910052980 cadmium sulfide Inorganic materials 0.000 title claims abstract description 87
- 238000005516 engineering process Methods 0.000 title claims abstract description 9
- 238000007731 hot pressing Methods 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 4
- 239000010439 graphite Substances 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 14
- 238000011049 filling Methods 0.000 claims description 5
- 238000007792 addition Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000013077 target material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/547—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on sulfides or selenides or tellurides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
- C04B35/645—Pressure sintering
Abstract
The invention discloses a processing technology of a cadmium sulfide target piece, which belongs to the technical field of cadmium sulfide and comprises the following steps: step 1, mixing cadmium sulfide powder with particle sizes of 1 micron, 80 microns and 200 microns according to a ratio of 3:3:4; step 2, sequentially adding cadmium sulfide powder of 200 microns, 80 microns and 1 micron into a mixer; step 3, adding the uniformly mixed cadmium sulfide powder into the assembled cadmium sulfide target piece split processing mould successively according to the same weight, and covering a layer of graphite paper after each addition is completed; step 4, placing the cadmium sulfide target piece split processing mould added with the cadmium sulfide powder under a hot press for pressing to obtain a cadmium sulfide piece; and 5, cutting and flat grinding the cadmium sulfide sheet subjected to hot pressing to obtain a finished product of the cadmium sulfide sheet, and packaging the finished product of the cadmium sulfide sheet.
Description
Technical Field
The invention relates to the technical field of cadmium sulfide, in particular to a cadmium sulfide target piece processing device and a cadmium sulfide target piece processing technology.
Background
Cadmium sulfide (CdS) belongs to a II-IV group compound, a wide bandgap direct transition semiconductor has a bandgap width of 2.42eV at room temperature, is an ideal material for developing photoelectron technology, is mainly used for manufacturing photocells and photoresistors, and is applied to the photoresistors in the occasions of automatic exposure of cameras, photoelectric control of electromechanical equipment, photoelectric coupling, photoelectric detection, light-operated toys, light-operated illumination running out and the like;
the production of the cadmium sulfide film needs an intermediate product, namely a target material, and the performance of the target material has decisive influence on the properties of uniformity, conductivity and the like of the film, so that the preparation of the target material with good performance is very important, and the existing production mode of the target material mostly adopts the modes of firstly making blanks and then sintering, so that the processing precision of blanks and the control requirement on temperature in the sintering process are strict, and the production efficiency of the target material is greatly influenced.
Disclosure of Invention
For the problems existing in the prior art, the cadmium sulfide target piece processing equipment and the cadmium sulfide target piece processing technology provided by the invention adopt the cadmium sulfide powder with different particle sizes to be uniformly mixed and then to be hot-pressed, the cadmium sulfide target piece is more uniformly and compactly hot-pressed through mutual filling among the cadmium sulfide powder with different particle sizes, the product quality is improved, meanwhile, the split processing mould is adopted to process, the contact surfaces among different modules are designed to be planar, the air discharge in the cadmium sulfide powder is promoted in the hot-pressing process by gaps among different contact surfaces, the hot-pressing effect of the cadmium sulfide target piece is improved, and the production efficiency of the target material is improved.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a cadmium sulfide target piece processing technology comprises the following steps:
step 1, material preparation: cadmium sulfide powder with the particle sizes of 1 micron, 80 microns and 200 microns are mixed according to the proportion of 3:3:4;
step 2, mixing: sequentially adding cadmium sulfide powder of 200 microns, 80 microns and 1 micron into a mixer, setting the rotation speed of the mixer to 10 revolutions per minute, and mixing for 90 minutes;
step 3, die filling: adding the uniformly mixed cadmium sulfide powder into an assembled cadmium sulfide target piece split processing mould successively according to the same weight, and covering a layer of graphite paper after each addition is completed;
step 4, hot pressing: placing the cadmium sulfide target piece split processing mould added with the cadmium sulfide powder under a hot press for pressing to obtain the cadmium sulfide piece, wherein the hot press hot pressing temperature of the hot press is 900-1000 ℃, the vacuum hot pressing pressure is 200 tons, and the hot pressing time is 300-400 minutes;
and 5, cutting and flat grinding the cadmium sulfide sheet subjected to hot pressing to obtain a finished product of the cadmium sulfide sheet, and packaging the finished product of the cadmium sulfide sheet.
Preferably, the heat preservation is carried out for 4 hours after the hot pressing in the step 4 is completed, and then the heat preservation is naturally cooled to room temperature under the vacuum condition.
The utility model provides a split type mold processing of cadmium sulfide target piece, includes the base, be equipped with a plurality of type pieces on the base, a plurality of type pieces once end to end form columnar structure, columnar structure center is established to the die cavity with hot press matched with, the columnar structure outside is equipped with the lantern ring that is used for fixed.
Preferably, the contact surfaces between two adjacent profile blocks are all plane surfaces.
Preferably, the mold blocks are 3 blocks, and the mold cavity is of a triangular prism structure.
Preferably, the mold blocks are 4 blocks, and the mold cavity is of a quadrangular prism structure.
The beneficial effects of the invention are as follows:
1. according to the invention, the hot press forming process is adopted to replace the original processes of blank making and sintering, so that the process flow is shortened, the processing difficulty is reduced, and the processing efficiency of the cadmium sulfide target sheet can be effectively improved;
2. according to the invention, the split type processing die is adopted, the contact surfaces between different modules are designed to be planar, and gaps between the different contact surfaces promote the air discharge in the cadmium sulfide powder in the hot pressing process, so that the hot pressing effect of the cadmium sulfide target sheet is improved, and the production efficiency is high;
3. according to the invention, cadmium sulfide powder with different particle sizes is uniformly mixed and then hot-pressed, and the cadmium sulfide target piece is more uniformly and compactly hot-pressed through mutual filling among the cadmium sulfide powder with different particle sizes, so that the product quality is improved.
Drawings
FIG. 1 is a front view of a split processing die for a cadmium sulfide target piece of the present invention;
FIG. 2 is a top view of one embodiment of a split mold tool for processing a cadmium sulfide target sheet of the present invention;
FIG. 3 is a top view of a second embodiment of a split mold tool for processing a cadmium sulfide target sheet according to the present invention.
In the figure: 1-base, 2-type piece, 3-die cavity, 4-lantern ring.
Detailed Description
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
1-3, a cadmium sulfide target piece processing technology comprises the following steps:
step 1, material preparation: cadmium sulfide powder with the particle sizes of 1 micron, 80 microns and 200 microns are mixed according to the proportion of 3:3:4;
step 2, mixing: sequentially adding cadmium sulfide powder of 200 microns, 80 microns and 1 micron into a mixer, setting the rotation speed of the mixer to 10 revolutions per minute, and mixing for 90 minutes;
step 3, die filling: adding the uniformly mixed cadmium sulfide powder into an assembled cadmium sulfide target piece split processing mould successively according to the same weight, and covering a layer of graphite paper after each addition is completed;
step 4, hot pressing: placing the cadmium sulfide target piece split processing mould added with the cadmium sulfide powder under a hot press for pressing to obtain the cadmium sulfide piece, wherein the hot press hot pressing temperature of the hot press is 900-1000 ℃, the vacuum hot pressing pressure is 200 tons, and the hot pressing time is 300-400 minutes;
step 5, cutting and flat grinding the cadmium sulfide sheet subjected to hot pressing to obtain a finished product of the cadmium sulfide sheet, and packaging the finished product of the cadmium sulfide sheet;
the hot press forming process is adopted to replace the original processes of firstly making blank and then sintering, so that the process flow is shortened, the processing difficulty is reduced, and the processing efficiency of the cadmium sulfide target sheet can be effectively improved.
And 4, preserving heat for 4 hours after hot pressing is finished in the step, and naturally cooling to room temperature under vacuum condition.
The utility model provides a split type mold processing of cadmium sulfide target piece, includes base 1, be equipped with a plurality of type pieces 2 on the base, a plurality of type pieces 2 once end to end form columnar structure, columnar structure center is established to with hot press matched with die cavity 3, the columnar structure outside is equipped with the lantern ring 4 that is used for fixed.
Different inner side surfaces of the cavity 3 are all designed to be plane, and by adopting the plane design, the uniform stress of different side edges of the cadmium sulfide target piece in the hot press forming process can be ensured, thereby being beneficial to improving the forming effect of the cadmium sulfide target piece.
The contact surfaces between two adjacent mold blocks 2 are all set to be plane, and the plane design is adopted, so that the gaps between the adjacent mold blocks 2 can be conveniently used for exhausting air between cadmium sulfide powder in the hot pressing process, and the hot pressing effect is improved.
Embodiment one:
the mold block 2 is 3, the mold cavity 3 is of a triangular prism structure, and the cadmium sulfide target piece of the triangular structure is produced.
Embodiment two:
the die block 2 is 4, the die cavity 3 is of a quadrangular prism structure, and the cadmium sulfide target piece of a square structure is produced.
The number of the molding blocks 2 is set to 3-4, so that the reserved gaps between the adjacent molding blocks 2 can be ensured to realize the discharge of redundant gas in the cavity, and the phenomenon that the excessive movement of cadmium sulfide powder to the gaps in the molding process affects the molding effect of the cadmium sulfide target sheet due to excessive gaps can be avoided, the cadmium sulfide target sheet can be selected according to the shape required to be produced, and the precise size of the molded cadmium sulfide target sheet can be determined by cutting and grinding.
The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The cadmium sulfide target piece processing technology is characterized by comprising the following steps:
step 1, material preparation: cadmium sulfide powder with the particle sizes of 1 micron, 80 microns and 200 microns are mixed according to the proportion of 3:3:4;
step 2, mixing: sequentially adding cadmium sulfide powder of 200 microns, 80 microns and 1 micron into a mixer, setting the rotation speed of the mixer to 10 revolutions per minute, and mixing for 90 minutes;
step 3, die filling: adding the uniformly mixed cadmium sulfide powder into an assembled cadmium sulfide target piece split processing mould successively according to the same weight, and covering a layer of graphite paper after each addition is completed;
step 4, hot pressing: placing the cadmium sulfide target piece split processing mould added with the cadmium sulfide powder under a hot press for pressing to obtain the cadmium sulfide piece, wherein the hot press hot pressing temperature of the hot press is 900-1000 ℃, the vacuum hot pressing pressure is 200 tons, and the hot pressing time is 300-400 minutes;
and 5, cutting and flat grinding the cadmium sulfide sheet subjected to hot pressing to obtain a finished product of the cadmium sulfide sheet, and packaging the finished product of the cadmium sulfide sheet.
2. The process for processing the cadmium sulfide target sheet according to claim 1, wherein the heat preservation is carried out for 4 hours after the hot pressing in the step 4 is completed, and then the cadmium sulfide target sheet is naturally cooled to room temperature under vacuum condition.
3. A cadmium sulfide target piece split processing die as claimed in any one of claims 1 to 2, and characterized by comprising a base, wherein a plurality of mold blocks are arranged on the base, the mold blocks are connected end to end once to form a columnar structure, the center of the columnar structure is provided with a cavity matched with a hot press, and the outer side of the columnar structure is provided with a lantern ring for fixing.
4. A cadmium sulfide target piece split processing die according to claim 3, wherein the contact surfaces between two adjacent mold blocks are both plane surfaces.
5. The split processing mold for cadmium sulfide target pieces according to claim 4, wherein the mold blocks are 3 blocks, and the mold cavity is a triangular prism structure.
6. The split processing mold for cadmium sulfide target pieces according to claim 4, wherein the mold blocks are 3 blocks, and the mold cavity is a triangular prism structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311328900.4A CN117362037A (en) | 2023-10-16 | 2023-10-16 | Cadmium sulfide target piece processing technology and split processing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311328900.4A CN117362037A (en) | 2023-10-16 | 2023-10-16 | Cadmium sulfide target piece processing technology and split processing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117362037A true CN117362037A (en) | 2024-01-09 |
Family
ID=89390528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311328900.4A Pending CN117362037A (en) | 2023-10-16 | 2023-10-16 | Cadmium sulfide target piece processing technology and split processing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117362037A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1161340A (en) * | 1966-12-23 | 1969-08-13 | Matsushita Electric Ind Co Ltd | Improvements in and relating to Photovoltaic Cells |
| US20100108503A1 (en) * | 2008-10-31 | 2010-05-06 | Applied Quantum Technology, Llc | Chalcogenide alloy sputter targets for photovoltaic applications and methods of manufacturing the same |
| US20110259732A1 (en) * | 2010-04-22 | 2011-10-27 | Primestar Solar, Inc. | Methods for high-rate sputtering of a compound semiconductor on large area substrates |
| JP2012041214A (en) * | 2010-08-17 | 2012-03-01 | Tokyo Yogyo Co Ltd | Method for producing silicon carbide sintered compact, and silicon carbide sintered compact |
| CN203184649U (en) * | 2013-04-26 | 2013-09-11 | 河南科技大学 | Hot pressing sintering mold |
| CN103936057A (en) * | 2014-04-02 | 2014-07-23 | 西北师范大学 | Preparation method of cadmium sulfide quantum dots with controllable sizes |
| CN105097988A (en) * | 2014-05-22 | 2015-11-25 | 汉能新材料科技有限公司 | Conductive sulfide target material and preparation method thereof |
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-
2023
- 2023-10-16 CN CN202311328900.4A patent/CN117362037A/en active Pending
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| US20110259732A1 (en) * | 2010-04-22 | 2011-10-27 | Primestar Solar, Inc. | Methods for high-rate sputtering of a compound semiconductor on large area substrates |
| JP2012041214A (en) * | 2010-08-17 | 2012-03-01 | Tokyo Yogyo Co Ltd | Method for producing silicon carbide sintered compact, and silicon carbide sintered compact |
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