CN202318532U - Mold for casting molding of quartz crucible - Google Patents
Mold for casting molding of quartz crucible Download PDFInfo
- Publication number
- CN202318532U CN202318532U CN2011204612920U CN201120461292U CN202318532U CN 202318532 U CN202318532 U CN 202318532U CN 2011204612920 U CN2011204612920 U CN 2011204612920U CN 201120461292 U CN201120461292 U CN 201120461292U CN 202318532 U CN202318532 U CN 202318532U
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- casting
- perforate
- moulding
- mold
- crucible
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Abstract
The utility model discloses a mold for casting molding of quartz crucibles. The mold comprises a mold body, wherein the mold body comprises a mold cover, surrounding side walls and mold cores; the mold cores are arranged in the mold cover and the surrounding side walls; the part among the mold cover, the surrounding side walls and the cores is the crucible casting molding area; an open hole which is communicated with the crucible casting molding area is arranged on the mold cover; and casting openings which are communicated with the crucible casting molding area are arranged on the surrounding side walls. With the mold provided by the utility mold, the molding time of a crucible is reduced, and the yield of the crucible is improved.
Description
Technical field
The utility model relates to a kind of quartz-ceramics processing technique field, is specifically related to a kind of mould of silica crucible moulding by casting.
Background technology
Polycrystalline silicon ingot casting has injection forming and the notes type dual mode that congeals into the preparation technology of silica crucible.Wherein, injection forming can be divided into two kinds of single face slip casting and two-sided slip castings.Two-sided slurry cast is owing to constant product quality, size are prone to control, intensity is high; Obtaining most of producers adopts.
Existing two-sided pouring technology mainly adopts following dual mode: (1) single hole casting, i.e. and perforate cast in the middle of the mould loam cake, opening with the perforate at loam cake is that the center opens that meter word groove is mended slurry for the crucible corner and exhaust is used.(2) five hole castings; Open 5 holes at loam cake exactly and pour into a mould production, but this mode is not used because defective is more now basically.
The shortcoming of existing two-sided single hole pouring technology mainly contain following some:
1, the moulding by casting time long, generally need 40～50h, influence output, the cost increase.
2, bubble accumulates in crucible bottom easily, causes product rejection.
3, the sprue gate causes place, sprue gate intensity low more greatly, is easy to generate cracking, makes product rejection.
4, rice word groove place's polishing amount is very big, has increased working strength and environmental pollution.Polishing can cause burnishing part intensity to reduce, and the polishing vibration also causes the product cracking easily, makes product rejection.
5, existing single hole cast because the silica crucible slurry contains organic matter, skinning can occur behind the ingress of air because exhaust is bad, and slurry and air are long time of contact during cast, influences crucible intensity, causes the internal fissure defective easily.
The utility model content
The utility model purpose: the utility model technical problem to be solved is the deficiency to prior art, and a kind of mould of silica crucible moulding by casting is provided.
In order to solve the problems of the technologies described above; The utility model discloses a kind of mould of silica crucible moulding by casting; Comprise die ontology; Said die ontology comprises die cap, abutment wall and be arranged on die cap and surrounding core rod within the walls all around, said die cap and be crucible moulding by casting district between abutment wall and the core rod all around; Said die cap is provided with the perforate that is communicated with said crucible moulding by casting district; Abutment wall is provided with the sprue gate that is communicated with said crucible moulding by casting district around said.
The mould of the utility model reduces to mend the size of slurry mouth greatly, has dwindled half the by the benefit slurry mouthful ￠ 40mm in the existing technology.So not only can make the molding time shortening more than 10 hours, and can also strengthen the intensity minimizing cracking that crucible is mended slurry mouthful place.The mould cancellation rice word groove of the utility model is mended slurry by the quartzy slurry of exhaust ports to product edge in the moulding, satisfies the moulding process needs.
In the utility model, said die ontology below is provided with and makes die ontology and horizontal plane have the support of certain angle.In the utility model, said angle angle is 1 degree～45 degree.Tilt to place mould during use, make exhaust outlet at peak.The sprue gate, is up poured into a mould by the bottom from the edge mouth cast in crucible moulding by casting district in bottom, exhaust outlet diagonal angle.Can make the quartzy slurry of having taken out vacuum directly get into mould during cast, reduce the contact-making surface of quartzy slurry and air, the organic components in the stable slurry.Avoid bubble to produce.
In the utility model, said sprue gate is communicated with the minimum point in said crucible moulding by casting district.Certainly, the sprue gate also can be communicated with the above position of crucible moulding by casting district minimum point, but effect is not as pointing out minimum.
In the utility model, said perforate is two, and one of them perforate that is used to mend slurry is positioned at the die cap center, and another is used for exhaust and the perforate of mending slurry and is positioned on the die cap position near the edge.
In the utility model; Said perforate is two; One of them perforate that is used to mend slurry is positioned at the die cap center, and another is used for exhaust and the perforate of mending slurry and is positioned on the die cap position near the edge, and is used for the peak that exhaust and the perforate of mending slurry are communicated with said crucible moulding by casting district.
Beneficial effect: the utility model is compared with existing product, has following advantage:
1, reduces molding time, generally need 23～30h, make manufacturing enterprise under identical equipment input, can obtain bigger output, increase benefit.
2, reduce bubble, reduce the sprue gate cracking, improve the qualification rate of crucible, new technology can improve 5-7 percentage point, increases benefit not increasing under the situation of output.
3, reduce crucible polishing amount, reduce workman's working strength, reduce the risk that the worker suffers from anthraco-silicosis, more can environmental protection production.
The contact-making surface of slurry and air when 4, reducing cast, material performance is more stable, and product quality is more guaranteed, improves qualification rate.
Description of drawings
Below in conjunction with accompanying drawing and the specific embodiment the utility model is done specifying further, the above-mentioned and/or otherwise advantage of the utility model will become apparent.
Fig. 1 is the said mould structure sketch map one of the utility model.
Fig. 2 is the said mould structure sketch map two of the utility model.
The specific embodiment
As depicted in figs. 1 and 2; The utility model discloses a kind of mould of silica crucible moulding by casting; Comprise die ontology 1; Said die ontology comprises die cap 2, abutment wall 3 and be arranged on die cap and surrounding core rod 4 within the walls all around, said die cap and be crucible moulding by casting district 5 between abutment wall and the core rod all around; Said die cap is provided with the perforate that is communicated with said crucible moulding by casting district; Abutment wall is provided with the sprue gate 10 that is communicated with said crucible moulding by casting district around said.Said die ontology below is provided with and makes die ontology and horizontal plane have the support 9 of certain angle.Said angle angle is the minimum point that the said sprue gate of 1 degree～45 degree is communicated with said crucible moulding by casting district.Said perforate is two, and one of them perforate 6 that is used to mend slurry is positioned at the die cap center, and another is used for exhaust and the perforate 7 of mending slurry and is positioned on the die cap position near the edge, and is used for the peak that exhaust and the perforate of mending slurry are communicated with said crucible moulding by casting district.
The utility model carries out following operating procedure when using:
1, prepares one of quartzy slurry, vacuum pouring jar, gypsum mold body and teeming stage (angle of pouring platform becomes 5 to spend than the diagonal angle is high with ground, i.e. supports).
2, vacuumizing 50 minutes in the quartzy slurry adding vacuum pouring jar.
3, combine the gypsum mold body, one in the funnel that the slurry tapping adds 20cm is highly respectively mended in the perforate of benefit on die cap slurry and exhaust.
4, be put into the gypsum mold body that combines on the teeming stage, note being placed on the sprue gate direction on the angle at the bottom of the pouring platform (being crucible moulding by casting district minimum point), the exhaust outlet direction is placed on the high position of teeming stage (being crucible moulding by casting district peak).
5, lift by crane the teeming stage place to the slurry of having taken out vacuum and vacuum pouring jar one, be higher than plane on the gypsum mold.
6, connect vacuum pouring jar feed opening pipe and die casting mouth.
7, open the cast switch, the quartzy slurry through vacuumizing processing directly got in the moulding by casting district through the sprue gate, up to the exhaust ports funnel water fill with till, promptly the moulding by casting district is full of.
8, transfer to shaping position to the good die ontology of cast, keep flat die ontology.
9, wait for 20 hours and check to mending slurry mouth and exhaust outlet whether moulding is qualified.Just can die sinking take out product like qualified back; As defective it continue to be placed, and each carried out procuratorial work moulding situation to two hours, molding effect is judged, whenever mend slurry at a distance from 8h.
The present embodiment product reduced bubble generation, reduced raw material and contact, mend slurry with air and mouthful reduce, and can cancel the rice word groove of product bottom, reached set technology purpose.
The utility model provides a kind of mould of silica crucible moulding by casting; The method and the approach of concrete this technical scheme of realization are a lot, and the above only is the preferred implementation of the utility model, should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.The all available prior art of each part not clear and definite in the present embodiment realizes.
Claims (6)
1. the mould of a silica crucible moulding by casting; It is characterized in that; Comprise die ontology, said die ontology comprises die cap, abutment wall and be arranged on die cap and surrounding core rod within the walls all around, said die cap and be crucible moulding by casting district between abutment wall and the core rod all around; Said die cap is provided with the perforate that is communicated with said crucible moulding by casting district; Abutment wall is provided with the sprue gate that is communicated with said crucible moulding by casting district around said.
2. the mould of a kind of silica crucible moulding by casting according to claim 1 is characterized in that, said die ontology below is provided with and makes die ontology and horizontal plane have the support of certain angle.
3. the mould of a kind of silica crucible moulding by casting according to claim 2 is characterized in that, said angle angle is 1 degree～45 degree.
4. according to the mould of claim 2 or 3 described a kind of silica crucible moulding by casting, it is characterized in that said sprue gate is communicated with the minimum point in said crucible moulding by casting district.
5. the mould of a kind of silica crucible moulding by casting according to claim 1; It is characterized in that; Said perforate is two, and one of them perforate that is used to mend slurry is positioned at the die cap center, and another is used for exhaust and the perforate of mending slurry and is positioned on the die cap position near the edge.
6. according to the mould of claim 2 or 3 described a kind of silica crucible moulding by casting; It is characterized in that; Said perforate is two; One of them perforate that is used to mend slurry is positioned at the die cap center, and another is used for exhaust and the perforate of mending slurry and is positioned on the die cap position near the edge, and is used for the peak that exhaust and the perforate of mending slurry are communicated with said crucible moulding by casting district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204612920U CN202318532U (en) | 2011-11-18 | 2011-11-18 | Mold for casting molding of quartz crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204612920U CN202318532U (en) | 2011-11-18 | 2011-11-18 | Mold for casting molding of quartz crucible |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202318532U true CN202318532U (en) | 2012-07-11 |
Family
ID=46430528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204612920U Withdrawn - After Issue CN202318532U (en) | 2011-11-18 | 2011-11-18 | Mold for casting molding of quartz crucible |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202318532U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490258A (en) * | 2011-11-18 | 2012-06-13 | 徐州协鑫太阳能材料有限公司 | Mould and method for casting quartz crucibles |
| CN104261657A (en) * | 2014-09-23 | 2015-01-07 | 徐州协鑫太阳能材料有限公司 | Method for forming quartz crucible |
-
2011
- 2011-11-18 CN CN2011204612920U patent/CN202318532U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490258A (en) * | 2011-11-18 | 2012-06-13 | 徐州协鑫太阳能材料有限公司 | Mould and method for casting quartz crucibles |
| CN102490258B (en) * | 2011-11-18 | 2014-07-30 | 徐州协鑫太阳能材料有限公司 | Mould and method for casting quartz crucibles |
| CN104261657A (en) * | 2014-09-23 | 2015-01-07 | 徐州协鑫太阳能材料有限公司 | Method for forming quartz crucible |
| CN104261657B (en) * | 2014-09-23 | 2016-07-06 | 徐州协鑫太阳能材料有限公司 | The method of molding silica crucible |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120711 Effective date of abandoning: 20140730 |
|
| RGAV | Abandon patent right to avoid regrant |