CN102220636B - Combined type crucible - Google Patents
Combined type crucible Download PDFInfo
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- CN102220636B CN102220636B CN 201110005089 CN201110005089A CN102220636B CN 102220636 B CN102220636 B CN 102220636B CN 201110005089 CN201110005089 CN 201110005089 CN 201110005089 A CN201110005089 A CN 201110005089A CN 102220636 B CN102220636 B CN 102220636B
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Abstract
The invention relates to a device for polycrystalline silicon cast ingot in the filed of solar photovoltaic, in particular to a combined type crucible. The invention provides a combined type crucible, which well solves the technical problem of the existing silicon fluid leakage flow; the combined type crucible comprises a side wall and a bottom board, wherein a groove is formed on the bottom board, the groove on the bottom board and a tenon at the bottom of the side wall are spliced in a mutually matched manner that the groove and the tenon are fixed, and the side wall are distributed around the periphery of the bottom board; and the side wall and the bottom board are circled together to form a cavity, and a plugging agent is filled in a slot between the bottom board and the side wall. In the invention, the silicon fluid can be blocked in the graphite side wall in situ directly so as to prevent the silicon fluid from flowing out, so that silicon material can not be consumed; and the thermal field of a polycrystalline silicon ingot furnace is prevented from being damaged so that the potential safety hazard is thoroughly eliminated.
Description
Technical field
The present invention relates to a kind of polycrystalline silicon ingot casting device in photovoltaic field, particularly a kind of combined type copple.
Background technology
In the technique of polycrystalline silicon ingot casting, quartz crucible is used to splendid attire silicon material, and the silicon material is finished thawing, solidified long brilliant whole process in quartz crucible.Because quartz crucible begins to soften after temperature surpasses about 1200 ℃, usually need with other material quartz crucible to be fixed.Adopt at present a graphite base plate to hold the quartz crucible bottom, and with several graphite backplates protect quartz crucible around, in the fusing of silicon raw material, crystalline silicon crystallisation process, because a variety of causes, such as the quality of crucible own there is the free time, or charging is too tight, may cause that all crucible breaks, thereby cause silicon liquid to spill quartz crucible.Because the crucible tray done of conventional graphite is put together by several sheet materials, therefore can only prevent the quartz crucible excessive deformation that is heated, can not prevent that silicon liquid from revealing from the gap.
In a single day silicon liquid leak, not only silicon material loss, and also the damage of the thermal field in the polycrystalline ingot furnace is huge, such as heat-insulation cage, well heater and body of heater.Serious meeting causes body of heater by burn through, so that the water coolant of cooled furnace wall contacts with high temperature silicon liquid, produces a large amount of water vapour and hydrogen, the moment increase of body of heater pressure, thus cause blast, even personal injury occurs.
From the angle of flow leakage prevention, it is optimal adding a monoblock type graphite crucible in the quartz crucible outside again, but the polysilicon weight that field of polysilicon production relates to can reach hundreds of kilograms, thereby it needs supporting plumbago crucible bulky.Graphite material that can splendid attire silicon liquid needs high-density graphite, and this raw material is because the restriction of complete processing, and its size is subject to certain restrictions.Integrated graphite need to be emptied from a huge graphite block with mechanical means and form in addition, and tooling cost is high.Thereby usually can only make the several piece graphite sheet and be spliced into again the graphite subassembly.Because the slit between the graphite cake, when crucible lost efficacy, silicon liquid can flow out from the slit between the graphite cake, thereby destroys thermal field, caused the consume of silicon material, structure deteriorate.Therefore the graphite subassembly that is comprised of graphite cake can not stop silicon hydrorrhea stream.
The patent No. is CN101169308, patent name is a kind of crucible tray, a kind of crucible tray that adopts carbon/carbon composite to be processed into is disclosed, it comprises base plate, side plate is installed on the base plate, be fixedly connected with between the adjacent biside plate, it is characterized in that base plate, side plate is processed into by carbon/carbon composite, because carbon/carbon composite inside has accurate three-dimensional structure, the crucible tray of being processed into has good heat conduction and resistant to elevated temperatures performance, not only decrease the weight of crucible tray (product density is less than 1.8g/cm3), and strengthened the mechanical property of crucible tray, make it to be not easy under the effect of external force, to break, and brought up to 300 day or more by original more than 90 day work-ing life, and because adjacent biside plate adopts even tenon structure, product is easy for installation, handling ease, and the percentage of A-class goods is high.But just strengthened the work-ing life of crucible tray, still do not solved the generation of silicon liquid leakage current phenomenon, still do not had the effect of good anti-silicon liquid leakage current.
For on silicon liquid leakage current sfgd., mainly adopt Metal Melting fracture of wire resist technology at present.Refer to that specifically warming plate is all around around the fixing metal fusible link below quartz crucible, when silicon liquid leakage current, the silicon drop is attached to above the fusible link, wire fusing is produced report to the police, thereby reminding user is taken measures.Yet in the practical application, there are numerous unreliable factors in this resist technology: at first, the Metal Melting circuit wire position that is laid on bottom of furnace body exists is moved the home position in deviation or the life-time service and is not repaired, and when silicon liquid leakage current, can not guarantee that silicon liquid accurately and timely drops in above the fusible link; Next is when quartz crucible breaks the occurrence of large-area leakage current, the Metal Melting fracture of wire even silicon liquid has fused, but top silicon liquid meeting leakage current is to various graphite and the metal parts of stove inner bottom part, can be with the water-cooled stainless steel furnace wall burn through of bottom when serious, with the recirculated water generation vigorous reaction in the interlayer of furnace wall, badly damaged ingot furnace, and major safety risks are arranged.And the warning behind the silicon liquid leakage current just occurs in Metal Melting fracture of wire resist technology, thus reminding user employing measure remedy, it can not play and prevent from leaking the plumbago crucible holder that several plates that silicon liquid is made from graphite material form.
In recent years; more existing technical literature reports for solution silicon liquid leakage current problem; patent publication No. is CN101423219; patent name is the silicon liquid leakage defense device of a kind of polycrystalline silicon purifying or ingot furnace; the silicon liquid leakage defense device of a kind of polycrystalline silicon purifying or ingot furnace is provided; comprise crucible and platform; crucible is located at above the platform; it is characterized in that: also comprise chamfering and coagulating pan; described platform upper surface has a plurality of radial guiding chutes and a plurality of broadwise diversion trench; described chamfering is located at the periphery of platform bottom; described coagulating pan is located at the following of platform and around one week of platform; the inside of being located at chamfering interior week of described coagulating pan; periphery extends to the outside of platform, and when silicon liquid occured to leak, silicon liquid can flow into by the diversion trench on the platform in the coagulating pan; thereby realize preventing the generation of structure deteriorate and blast, protection flushing and casting workman's personnel safety.
Patent publication No. is CN101158549; patent name is the silicon liquid leakage current securing system of polycrystalline silicon ingot or purifying furnace; the design and the manufacturing technology field that belong to polycrystalline silicon ingot or purifying furnace; main by the body of heater of bottom with rock wool; place the Thermal insulation cage body of body of heater inner bottom part band insulation base plate; place in the Thermal insulation cage body heat exchange platform with quartz crucible and plumbago crucible; place central sheath and the boss sleeve pipe at rock wool middle part; be opened in the curb on both sides, plumbago crucible bottom; be opened in the pod apertures on insulation base plate both sides; place on the rock wool of bottom of furnace body the silicon liquid leakage current bearing container with the pod apertures correspondence position, place the formations such as Metal Melting fracture of wire of tape-controller in the silicon liquid leakage current bearing container.By the effect of the flow guide system that confluxes that consists of by curb, pod apertures, with the silicon liquid leakage current bearing container of Metal Melting fracture of wire, avoid silicon liquid to the damage of body of heater.
Having both at home and abroad takes some technical schemes to be used for preventing the potential safety hazard that silicon liquid leakage current causes, especially at home, over 2007, applied for nearly 10 about preventing the patent of silicon liquid leakage current, but they have a common feature: adopt complicated drainage system with the silicon liquid drainage to holding groove or directly in the lower end, both sides of polycrystalline silicon ingot casting graphite base plate DS-Block silicon liquid holding groove is set, implement inconvenient, complex process, be unfavorable for applying aborning, and because temperature contrast, silicon liquid may solidify in the drainage process, cause drainage channel to stop up, in case the serious leakage that quartz crucible breaks and causes occurs, guide arrangement can only local drainage part silicon liquid, and most of silicon liquid still can be revealed along the gap between the graphite backplate of splicing, and not only the loss of silicon material is large, the silicon liquid of leakage current damages huge to the thermal field in the polycrystalline ingot furnace, and potential safety hazard exists all the time.
Therefore, the best approach that solves silicon liquid leakage current problem is exactly with silicon liquid original position splendid attire, neither can cause the loss of silicon material, also can to damaging the thermal field in the polycrystalline ingot furnace, not the more important thing is the thorough potential safety hazard of having eliminated.
So seek a kind of cheap for manufacturing costly, be easy to apply aborning, and can prevent effectively absolutely that the method for silicon liquid leakage current or device have quite substantial meaning for whole polycrystalline silicon ingot casting field.
In addition, in the technique of polycrystalline silicon ingot casting, quartz crucible is used to splendid attire silicon material at present, and the silicon material is finished thawing, solidified long brilliant whole process in quartz crucible.Because quartz crucible begins to soften after temperature surpasses about 1200 ℃, finish polycrystalline silicon ingot casting after, quartz crucible can be cracked, can not reuse.As expendable consumed product, consumption is large in polycrystalline silicon casting ingot process for quartz crucible, and the quartz crucible production cost is higher.Therefore, owing to not only can cause the polycrystalline silicon ingot casting cost very high as the quartz crucible of expendable consumed product, and also the quartz crucible fragment of scrapping can cause larger pressure to environment.
Has quite substantial meaning so seek a kind of reusable crucible for the production cost that reduces whole polycrystalline silicon ingot casting field.
Summary of the invention
The present invention proposes a kind of combined type copple, can be good at solving the technical problem of existing silicon liquid leakage current.
Another technical problem that the present invention will solve provides a kind of reusable built-up type graphite crucible.
Technical scheme of the present invention is:
A kind of combined type copple comprises sidewall and base plate, and wherein: be provided with groove on the base plate, the tenon of the groove on the base plate and sidewall bottom adopts the fixing mode of chase mortise that cooperatively interacts to splice, sidewall around be distributed in base plate around; Sidewall and base plate surround a cavity jointly, are filled with plugging agent in the slit between base plate and the sidewall.
A kind of combined type copple, wherein: plugging agent and the molten silicon liquid generation high temperature ceramic material that reacts rapidly.
A kind of combined type copple, wherein: plugging agent can be any one or two kinds in Mo powder or the C powder.
A kind of combined type copple, wherein: described sidewall and base plate are that graphite material is made.
A kind of combined type copple, wherein: adopt the fixing mode of chase mortise that cooperatively interacts to splice between sidewall.
A kind of combined type copple, wherein: adopt the fixing mode of screw to splice between sidewall.
A kind of combined type copple, wherein: described plugging agent can for Powdered, also can be packaged into strip.
A kind of combined type copple, wherein: be filled with plugging agent in the splicing slit between the sidewall.
A kind of combined type copple, wherein: plugging agent and the molten silicon liquid generation high temperature ceramic material that reacts rapidly.
A kind of combined type copple, wherein: plugging agent can be any one or two kinds in Mo powder or the C powder.
A kind of combined type copple, wherein: plugging agent also comprises Si
3N
4, SiC, aluminum oxide or magnesian any one or wherein two kinds mixing.
A kind of combined type copple, wherein: plugging agent comprises that reagent and additive form, and the weight proportion between reagent and the additive is: reagent 10-100 part, additive 0-90 part; Wherein reagent is any one or two kinds in Mo powder or the C powder, and additive is Si
3N
4, SiC, aluminum oxide or magnesian any one or wherein two kinds mixing.Additive can strengthen the mechanical property of plugging agent.
Principle of work of the present invention: when silicon liquid generation leakage current, liquid-state silicon and plugging agent react rapidly the generation high temperature ceramic material and solidify, and have stoped silicon liquid to flow out.Plugging agent can be powdered, also can be packaged into strip, and constructability also keeps certain contractility, can alleviate the high-temperature expansion of backplate, and can repeatedly use.Use Mo powder or C powder+silicon nitride powder to be configured to according to a certain percentage plugging agent in the experiment.
Adopt the Mo powder as plugging agent, when silicon liquid generation leakage current, the rapid self-propagating reaction of Mo powder and silicon liquid generates MoSi
2
Mo+2Si(l)=?MoSi
2
Adopt the C powder as plugging agent, when silicon liquid generation leakage current, the rapid self-propagating reaction of C powder and silicon liquid generates SiC.
C+Si(l)=?SiC
This reaction is the process of volumetric expansion, thereby the slit is blocked, and has stoped silicon liquid to the graphite side wall external leakage.
Principle: slotting in graphite base plate and graphite side wall is to fill plugging agent in order to allow in the splicing slit of plugging agent between base plate and backplate, plugging agent and silicon liquid react rapidly the generation high temperature ceramic material, to splice the slit and fill, play the effect of anti-silicon liquid leakage current.If use graphite base plate and the graphite side wall of existing structure, in the splicing slit, fill plugging agent, because one direction is stressed, that the slit can be supportted is larger, can not play the effect of anti-silicon liquid leakage current.
In addition, because combined type copple provided by the invention is made by graphite material, be enough to satisfy simultaneously the dual function of support and anti-silicon liquid leakage current, the combined type copple that while graphite material provided by the invention is made can not deform under hot conditions, breakage, can repeat to use, greatly reduce the ingot casting cost of polysilicon.
So technical scheme of the present invention is in slot the combination with plugging agent of graphite base plate and graphite side wall.
Experimental Comparison:
The present invention: combined type copple provided by the invention
Prior art 1: adopt splicing, the apertured plumbago crucible holder of assembly unit and the design of quartz crucible.
Prior art 2: adopt splicing, the apertured plumbago crucible holder of assembly unit and the design of quartz crucible, increase complicated attached silicon hydrorrhea stream, leakage current guiding take-off equipment.For example patent publication No. is CN101158549.
Effect A: anti-silicon liquid leakage current effect;
Effect B: silicon liquid leakage current is to the thermal field damage intensity of polycrystalline silicon ingot or purifying furnace;
Effect C: reusable.
The anti-silicon liquid leakage current effect of table 1 the present invention and prior art relatively
| The present invention | |
|
|
| Effect A | Effective, thoroughly stop silicon liquid leakage current | The silicon liquid of serious overflow, leakage current still can spill from the slit.Can not prevent serious overflow, leakage current problem. | Guide arrangement can only local leader overflow, leakage current silicon liquid enter guide arrangement, but large-area serious overflow, the silicon liquid of leakage current still can spill from the slit. |
| Effect B | Almost do not damage | Damage intensity is large, or even fatal infringement | Damage intensity is still larger |
| Effect C | Can reuse | Cannot reuse | Cannot reuse |
| The potential safety hazard that sets off an explosion | Thoroughly solve | All the time can not thoroughly solve. | All the time can not thoroughly solve. |
| The polycrystalline silicon ingot casting cost | Low | High | High |
| Because the environmental pollution that crucible brings | There is not environmental pollution | Environment is caused larger pollution | Environment is caused larger pollution |
The implementation result of table 2 different technologies scheme of the present invention relatively
| The plugging agent proportioning | Effect A: anti-silicon liquid leakage current effect | Effect B: silicon liquid leakage current is to the thermal field damage intensity of polycrystalline silicon ingot or purifying furnace |
| 50 parts in Mo powder, Si 3N 450 parts | Best | Do not damage |
| 100 parts in Mo powder | Generally | Little |
| 100 parts in C powder | Generally | Little |
| 80 parts in Mo powder, Si 3N 420 parts | Generally | Little |
| 60 parts in C powder, 40 parts of SiC | Better | Almost do not damage |
| 40 parts in Mo powder, 60 parts in aluminum oxide | Better | Almost do not damage |
| 30 parts in C powder, 70 parts in magnesium oxide | Generally | Little |
| 50 parts in Mo powder, 10 parts in C powder, Si 3N 440 parts | Better | Almost do not damage |
| 40 parts in Mo powder, 10 parts in C powder, Si 3N 460 parts, 10 parts in aluminum oxide | Better | Almost do not damage |
| 10 parts in Mo powder, 40 parts in C powder, 40 parts of SiC, 10 parts in magnesium oxide | Better | Almost do not damage |
| 40 parts in Mo powder, 40 parts in C powder, 10 parts in aluminum oxide, 10 parts in magnesium oxide | Generally | Little |
As can be seen from Table 2, it is 50 parts in Mo powder that plugging agent of the present invention adopts proportioning, Si
3N
450 parts, the best results of anti-silicon liquid leakage current.
Advantage of the present invention and effect: the present invention can get lodged in silicon liquid direct in-situ in the graphite side wall, and silicon liquid can't flow out, and can not cause the loss of silicon material, and can not cause damage to the thermal field of polycrystalline silicon ingot or purifying furnace, has thoroughly eliminated potential safety hazard.The present invention can also replace existing disposable quartz crucible after by further applying coating and be used for polysilicon melting ingot casting, this is to be made by graphite material because of combined type copple provided by the invention, be enough to satisfy simultaneously the dual function of support and anti-silicon liquid leakage current, the combined type copple that while graphite material provided by the invention is made can not deform under hot conditions, breakage, can repeat to use, greatly reduce the ingot casting cost of polysilicon.Can certainly place existing quartz crucible in combined type copple provided by the invention, wherein, built-up type graphite crucible provided by the invention mainly works to prevent silicon liquid leakage current and support.
Reference numeral
Accompanying drawing 1 is the structural representation of existing base plate;
Accompanying drawing 2 is structural representations of existing side plate splicing;
Accompanying drawing 3 is structural representations that existing base plate is connected with side plate;
Accompanying drawing 4 is structural representations of a kind of embodiment base plate among the present invention;
Accompanying drawing 5 is structural representations of a kind of embodiment side plate splicing among the present invention;
Accompanying drawing 6 is structural representations that a kind of embodiment base plate among the present invention is connected with side plate;
Accompanying drawing 7 is structural representations of the another kind of embodiment base plate among the present invention;
Accompanying drawing 8 is structural representations of the another kind of embodiment side plate splicing among the present invention;
Accompanying drawing 9 is structural representations that the another kind of embodiment base plate among the present invention is connected with side plate;
Description of drawings: groove 1, tenon 2, base plate 3, sidewall 4, plugging agent 5.
Embodiment
Embodiment 5, a kind of combined type copple, wherein: described sidewall 4 is that graphite material is made with base plate 3.All the other are with embodiment 1.
Embodiment 6, a kind of combined type copple, wherein: the fixing mode of the chase mortise that 4 employings of sidewall cooperatively interact is spliced.All the other are with embodiment 1.
Embodiment 7, a kind of combined type copple, wherein: 4 of sidewalls adopt the fixing mode of screw to splice.All the other are with embodiment 1.
Embodiment 8, a kind of combined type copple, wherein: described plugging agent 5 is Powdered.All the other are with any one embodiment among embodiment 2, embodiment 3 or the embodiment 4.
Embodiment 9, a kind of combined type copple, wherein: described plugging agent 5 is packaged into strip.All the other are with any one embodiment among embodiment 2, embodiment 3 or the embodiment 4.
Embodiment 10, a kind of combined type copple, wherein: be filled with plugging agent 5 in the splicing slit between the sidewall 4.All the other are with embodiment 6 or embodiment 7.
Embodiment 11, a kind of combined type copple, wherein: plugging agent 5 and the molten silicon liquid generation high temperature ceramic material that reacts rapidly.All the other are with embodiment 10.
Embodiment 12, a kind of combined type copple, wherein: plugging agent 5 is Mo powder.All the other are with embodiment 11.
Embodiment 13, a kind of combined type copple, wherein: plugging agent 5 is C powder.All the other are with embodiment 11.
Embodiment 14, a kind of combined type copple, wherein: plugging agent 5 also comprises Si
3N
4All the other are with embodiment 2 or embodiment 11.
Embodiment 15, a kind of combined type copple, wherein: plugging agent 5 also comprises SiC.All the other are with embodiment 2 or embodiment 11.
Embodiment 16, a kind of combined type copple, wherein: plugging agent 5 also comprises Si
3N
4With mixing of SiC.All the other are with embodiment 2 or embodiment 11.
Embodiment 17, a kind of combined type copple, wherein: plugging agent 5 also comprises aluminum oxide.All the other are with embodiment 2 or embodiment 11.
Embodiment 18, a kind of combined type copple, wherein: plugging agent 5 also comprises magnesium oxide.All the other are with embodiment 2 or embodiment 11.
Embodiment 19, a kind of combined type copple, wherein: plugging agent 5 also comprises magnesium oxide and Si
3N
4Mixing.All the other are with embodiment 2 or embodiment 11.
Embodiment 20, a kind of combined type copple, wherein: plugging agent 5 also comprises mixing of aluminum oxide and SiC.All the other are with embodiment 2 or embodiment 11.
Embodiment 21, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: reagent 10-100 part, additive 0-90 part; Wherein reagent is any one or two kinds in Mo powder or the C powder, and additive is Si
3N
4, SiC, aluminum oxide or magnesian any one or wherein two kinds mixing.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 22, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 100 parts of reagents, 0 part of additive; Wherein reagent is the Mo powder.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 23, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 100 parts of reagents, 0 part of additive; Wherein reagent is the C powder.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 24, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 90 parts of reagents, 10 parts of additives; Wherein reagent is the Mo powder, and additive is Si
3N
4All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 25, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 80 parts of reagents, 20 parts of additives; Wherein reagent is the C powder, and additive is SiC.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 26, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 70 parts of reagents, 30 parts of additives; Wherein reagent is the Mo powder, and additive is aluminum oxide.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 27, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 65 parts of reagents, 35 parts of additives; Wherein reagent is the C powder, and additive is magnesium oxide.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 28, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 60 parts of reagents, 40 parts of additives; Wherein reagent is the Mo powder, and additive is Si
3N
4All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 29, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 55 parts of reagents, 45 parts of additives; Wherein reagent is the C powder, and additive is SiC.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 30, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 50 parts of reagents, 50 parts of additives; Wherein reagent is the Mo powder, and additive is Si
3N
4All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 31, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 45 parts of reagents, 55 parts of additives; Wherein reagent is the Mo powder, and additive is aluminum oxide.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 32, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 40 parts of reagents, 60 parts of additives; Wherein reagent is the C powder, and additive is magnesium oxide.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 33, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 60 parts of reagents, 40 parts of additives; Wherein reagent is the C powder, and additive is Si
3N
4With mixing of SiC.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 34, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 55 parts of reagents, 45 parts of additives; Wherein reagent is the Mo powder, and additive is that SiC mixes with magnesian.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 35, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 50 parts of reagents, 50 parts of additives; Wherein reagent is the mixing of C powder and Mo powder, and additive is magnesium oxide and the mixing of aluminum oxide.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 36, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 45 parts of reagents, 55 parts of additives; Wherein reagent is the mixing of Mo powder and C powder, and additive is SiC.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 37, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 40 parts of reagents, 60 parts of additives; Wherein reagent is the C powder, and additive is aluminum oxide and Si
3N
4Mixing.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 38, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 30 parts of reagents, 70 parts of additives; Wherein reagent is the Mo powder, and additive is Si
3N
4All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 39, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 20 parts of reagents, 80 parts of additives; Wherein reagent is the C powder, and additive is Si
3N
4All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Embodiment 40, a kind of combined type copple, wherein: plugging agent 5 comprises that reagent and additive form, and the weight proportion between reagent and the additive is: 10 parts of reagents, 90 parts of additives; Wherein reagent is the Mo powder, and additive is magnesium oxide.All the other are with any one embodiment among embodiment 14, embodiment 15, embodiment 16, embodiment 17, embodiment 18, embodiment 19 or the embodiment 20.
Claims (1)
1. combined type copple, comprise sidewall (4) and base plate (3), it is characterized in that: be provided with groove (1) on the base plate (3), the tenon (2) of the groove (1) on the base plate (3) and sidewall (4) bottom adopts the fixing mode of chase mortise that cooperatively interacts to splice, sidewall (4) around be distributed in base plate (3) around; Sidewall (4) surrounds a cavity jointly with base plate (3), is filled with plugging agent (5) in the slit between base plate (3) and the sidewall (4); Plugging agent (5) and the molten silicon liquid generation high temperature ceramic material that reacts rapidly; Adopt the fixing mode of chase mortise that cooperatively interacts to splice between sidewall (4); Be filled with plugging agent (5) in the splicing slit between the sidewall (4); Plugging agent (5) is comprised of reagent and additive, and the weight proportion between reagent and the additive is: 50 parts of reagents, 50 parts of additives; Wherein reagent is the Mo powder, and additive is Si
3N
4
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110005089 CN102220636B (en) | 2011-01-12 | 2011-01-12 | Combined type crucible |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110005089 CN102220636B (en) | 2011-01-12 | 2011-01-12 | Combined type crucible |
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| Publication Number | Publication Date |
|---|---|
| CN102220636A CN102220636A (en) | 2011-10-19 |
| CN102220636B true CN102220636B (en) | 2013-03-20 |
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ID=44777331
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|---|---|---|---|
| CN 201110005089 Expired - Fee Related CN102220636B (en) | 2011-01-12 | 2011-01-12 | Combined type crucible |
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| CN102912426B (en) * | 2012-10-16 | 2015-09-16 | 洛阳金诺机械工程有限公司 | The combined type copple that a kind of crystal melts |
| CN103160936A (en) * | 2013-02-26 | 2013-06-19 | 昱成光能股份有限公司 | Manufacturing method of crucible protecting frame |
| CN104928756A (en) * | 2015-07-01 | 2015-09-23 | 江苏协鑫硅材料科技发展有限公司 | Crucible |
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| 胡动力等.铸锭过程中硅液溢流分析及防溢流堵漏剂的开发.《第十一届中国光伏大会暨展览会会议论文集》.2010, * |
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