CN101891376A - Production process of large-size quartz crucibles - Google Patents
Production process of large-size quartz crucibles Download PDFInfo
- Publication number
- CN101891376A CN101891376A CN2009100278726A CN200910027872A CN101891376A CN 101891376 A CN101891376 A CN 101891376A CN 2009100278726 A CN2009100278726 A CN 2009100278726A CN 200910027872 A CN200910027872 A CN 200910027872A CN 101891376 A CN101891376 A CN 101891376A
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- CN
- China
- Prior art keywords
- quartz
- quartz crucible
- quartz crucibles
- crucibles
- crucible
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/09—Other methods of shaping glass by fusing powdered glass in a shaping mould
- C03B19/095—Other methods of shaping glass by fusing powdered glass in a shaping mould by centrifuging, e.g. arc discharge in rotating mould
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The invention provides a production process of large-size quartz crucibles, solving the control method of devitrification resistance, high heat resistance, stress reduction and one-step molding without distortion of the large-size quartz crucibles. The process specifically comprises the following steps: 1. highly purifying the main raw material quartz sands and putting the quartz sands into pilot production after the quartz sands pass the inspection; 2. carrying out charging and molding on rotary high-purity graphite dies; 3. moving the dies and the molded quartz sands into crucible furnaces to undergo vacuum melting; 4. naturally cooling and demolding the melted quartz crucibles; 5. preliminarily detecting the key indexes of the quartz crucibles and carrying out sand blasting and grinding on the quartz crucibles up to the standard; 6. cutting off and chamfering the quartz crucibles according to the requirement of the customers for the height of the quartz crucibles; 7. carrying out acid leaching, ultrasonic processing, high-pressure spraying and drying on the quartz crucibles; and 8. finally inspecting, packaging and warehousing the dried quartz crucibles.
Description
Technical field
The present invention relates to the photovoltaic field, be specifically related to a kind of production technique of large size quartz crucible.
Background technology
Quartz crucible is the expendable vessel that the photovoltaic industry is used to draw silicon single-crystal, and every production one stove silicon single-crystal crucible of just using up is accompanied by the fast development of domestic photovoltaic industry, and the quartz crucible market requirement also increases day by day.
At present, domestic quartz crucible manufacturing enterprise can only production overall dimension is 24 " quartz crucible; with abroad go together produce 32 " or even 40 " the heavy caliber quartz crucible compare, China's research and development produce 28 " and above heavy caliber quartz crucible technology with big gap is abroad still arranged; Simultaneously because the monocrystalline silicon production development of technology, domestic monocrystalline silicon production enterprise presses for and adopts a charging capacity more, single stove production capacity is bigger, cost is lower, and can draw the quartz crucible of larger diameter silicon single-crystal, but the present used Large-Diameter Czochralski Silicon of domestic monocrystalline enterprise is with 28 " the equal dependence on import of quartz crucible, the cost costliness.Owing to be subjected to the restriction of production gordian technique, current domestic quartz crucible manufacturing enterprise also fails to develop 28 " and larger sized quartz crucible.
Summary of the invention
The objective of the invention is provides a kind of production technique of large size quartz crucible in order to overcome the deficiencies in the prior art, and this technology has solved large size quartz crucible devitrification resistance, high heat resistance, reduced stress and the distortionless control method of once shaped.
The technical solution adopted in the present invention: a kind of production technique of large size quartz crucible, the flow process of this technology be glass sand → high purity graphite mould → vacuum material charging forming → vacuum arc found → the naturally cooling demoulding → quartz crucible Preliminary detection → cold working sandblast, cut-out, chamfering → quartz crucible secondary check → ultra-clean cleans, ultrasonic, high-pressure spraying, three check → vacuum packagings of oven dry → quartz crucible automatically → try out → improvement → batch process, this technology specifically may further comprise the steps:
1, high purity main raw material quartz sand, the test of putting into production is up to the standards;
2, the enterprising luggage material of the high purity graphite mould moulding of rotation;
3, carry out vacuum melt in the quartz sand immigration crucible oven with mould and forming;
4, the quartz crucible that melts is carried out the naturally cooling demoulding;
5, Preliminary detection quartz crucible key index carries out sandblast and grinding to quartz crucible up to standard;
6, according to the client chamfered is cut off and done to the requirement for height of quartz crucible;
7, quartz crucible is carried out acidleach, ultrasonic, high-pressure spraying and oven dry;
8, the quartz crucible after the oven dry is carried out final acceptance inspection, packing warehouse-in.
Beneficial effect: 1, crucible physical dimension of the present invention reaches 711-713mm, wall thickness can be controlled between the 12-13mm, impurity content is up to specification, and devitrification resistance reaches specified requirement, and thermotolerance (1550 ℃ ± 10 ℃ following load 2kg deformation rates are less than 4%) is up to standard; 2, the price of quartz crucible of the present invention descends about 25% than international import price; 3, the present invention can promote the cost degradation development of domestic photovoltaic industry by this project implementation, realizes socialization, the family oriented of photovoltaic industry, and the pulling domestic demand creates more jobs.Dwindle the gap of China in novel energy and environmental protection field and developed country.
Embodiment
The present invention is further illustrated below in conjunction with embodiment:
A kind of production technique of large size quartz crucible, this technology specifically may further comprise the steps:
1, high purity main raw material quartz sand, the test of putting into production is up to the standards;
2, the enterprising luggage material of the high purity graphite mould moulding of rotation;
3, carry out vacuum melt in the quartz sand immigration crucible oven with mould and forming;
4, the quartz crucible that melts is carried out the naturally cooling demoulding;
5, Preliminary detection quartz crucible key index carries out sandblast and grinding to quartz crucible up to standard;
6, according to the client chamfered is cut off and done to the requirement for height of quartz crucible;
7, quartz crucible is carried out acidleach, ultrasonic, high-pressure spraying and oven dry;
8, the quartz crucible after the oven dry is carried out final acceptance inspection, packing warehouse-in.
Claims (1)
1. the production technique of a large size quartz crucible, it is characterized in that: this technology specifically may further comprise the steps:
1, high purity main raw material quartz sand, the test of putting into production is up to the standards;
2, the enterprising luggage material of the high purity graphite mould moulding of rotation;
3, carry out vacuum melt in the quartz sand immigration crucible oven with mould and forming;
4, the quartz crucible that melts is carried out the naturally cooling demoulding;
5, Preliminary detection quartz crucible key index carries out sandblast and grinding to quartz crucible up to standard;
6, according to the client chamfered is cut off and done to the requirement for height of quartz crucible;
7, quartz crucible is carried out acidleach, ultrasonic, high-pressure spraying and oven dry;
8, the quartz crucible after the oven dry is carried out final acceptance inspection, packing warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100278726A CN101891376A (en) | 2009-05-18 | 2009-05-18 | Production process of large-size quartz crucibles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100278726A CN101891376A (en) | 2009-05-18 | 2009-05-18 | Production process of large-size quartz crucibles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101891376A true CN101891376A (en) | 2010-11-24 |
Family
ID=43100755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100278726A Pending CN101891376A (en) | 2009-05-18 | 2009-05-18 | Production process of large-size quartz crucibles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101891376A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351407A (en) * | 2011-08-25 | 2012-02-15 | 江苏阳山硅材料科技有限公司 | Manufacturing method for aluminum melting quartz crucible |
| CN103833371A (en) * | 2012-11-29 | 2014-06-04 | 洛阳中苑陶瓷科技有限公司 | Method for preparing quartz ceramic crucible for casting in dentistry |
| CN105177708A (en) * | 2015-07-27 | 2015-12-23 | 奥特斯维能源（太仓）有限公司 | Purification method for crucible used for polycrystalline cast ingot |
-
2009
- 2009-05-18 CN CN2009100278726A patent/CN101891376A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351407A (en) * | 2011-08-25 | 2012-02-15 | 江苏阳山硅材料科技有限公司 | Manufacturing method for aluminum melting quartz crucible |
| CN103833371A (en) * | 2012-11-29 | 2014-06-04 | 洛阳中苑陶瓷科技有限公司 | Method for preparing quartz ceramic crucible for casting in dentistry |
| CN105177708A (en) * | 2015-07-27 | 2015-12-23 | 奥特斯维能源（太仓）有限公司 | Purification method for crucible used for polycrystalline cast ingot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101124 |