CN103668430A - High-frequency coil for producing sixteen or seventeen silicon cores - Google Patents

Abstract

The invention provides a high-frequency coil for producing sixteen or seventeen silicon cores, relating to the technical field of high-frequency coils. A cooling water channel (12) is arranged around the outside of the high-frequency coil; a drawing hole or melting hole (4) is arranged in the middle of the high-frequency coil (1); three outer ends of four diversion trenches (11) are respectively provided with a drawing hole (5); the outer end of the diversion trench on the lower part is provided with an overdrawing hole (10); two drawing holes and a racket-shaped drawing hole (3) or drop-shaped drawing hole (17) are respectively arranged in four neutral positions; an opening (6) on the other side of the diversion trench corresponding to the overdrawing hole penetrates to the outer edge surface of the high-frequency coil; two openings of the cooling water channel are respectively provided with an extension duct; the end parts of a water channel A end (7) a water channel B end (9) are respectively provided with a connecting base (8); and a ground wire connecting gear is arranged outside the high-frequency coil. The quantity of the drawing holes of the high-frequency coil is increased, and the contact probability between the upper end of the raw bar and the high-frequency coil is reduced.

Description

Produce the radio-frequency coil of 16 or 17 silicon cores

[technical field]

The present invention relates to radio-frequency coil technical field, especially relate to the radio-frequency coil of 16 or 17 silicon cores of a kind of production.

[background technology]

At present, usage quantity is very huge at home for silicon core, existing silicon core, in the technological process that the molten mode in silicon single crystal and other material crystals district is produced, what mostly use is a kind of monocular radio-frequency coil, its principle of work is: during work by passing into high-frequency current to radio-frequency coil, make radio-frequency coil generation current carry out induction heating to fuel rod, fuel rod upper end after heating forms melt zone, then by young brilliant in inserting the melting area of fuel rod upper end after drawing hole, then slowly promote young brilliant, raw material after fusing will be followed young brilliant rising, form a new pillar-shaped crystal, this new pillar-shaped crystal is the finished product of silicon core or other material crystals.

The design people in first to file the radio-frequency coil patent of multinomial invention or utility model, make that the drawing of single silicon core is domestic to be finished substantially, although obtained good technique effect in use, but the silicon core ovality problem that how to distribute more drawing hole and draw out on radio-frequency coil is a technical bottleneck always, this is mainly the restriction of radio-frequency coil distribution of current problem, if drawing hole arranges too much, just can make being heated of fuel rod irregular, local material is not thorough, namely corresponding drawing hole or material hole form little Rong district in pulling process, the thawing raw material supply at little Rong district place not draw required, the corresponding radical that draws also can not get expanding, drawing hole in first to file is by changing into racket-shaped drawing hole or drop-shaped drawing hole, make ovality problem be able to larger overcoming.

It should be explained that position, hole layout is not careless on radio-frequency coil, how many drawing holes are namely set on radio-frequency coil, how arrange drawing hole position, corresponding voltage adjustment, seedchuck structure etc. all need to do accommodation, the matching degree of equipment is also key link, so the necessary corresponding relevant device of the quantity of radio-frequency coil drawing hole, forms a key components and parts that can adapt to equipment.

In my recent many experiments, find, the drainage trough arranging on racket-shaped drawing hole or drop-shaped drawing hole or " V " shape gap drainage are obvious, can be described as an invention of radio-frequency coil technical field, broken through the circular or slightly oval general layout of original drawing hole, namely drainage trough or " V " shape gap can effectively overcome the technical bottleneck that draws radical restriction, making to draw quantity gets a promotion, and for fuel rod upper end, reduce that local temperature is too low can not material also have good benefit, obtained metastable raw material and melted; It should be noted that, radio-frequency coil seems a simple copper coin, and actual fabrication difficulty is high, thus the single price of radio-frequency coil all more than 3000 yuan, making wherein research and development are prime cost; And radio-frequency coil belongs to easily-consumed products, namely the silicon core in fuel rod upper end and pulling process all must not have any contact with radio-frequency coil, once occur that contact just there will be momentary arcing, at this moment the replacing of radio-frequency coil is carried out in the blowing out of having to, blowing out cost, coil cost in the middle of this and to expend man-hour be all the production cost that is difficult to overcome, next radio-frequency coil time limit of service of normal conditions is about one month.

Polysilicon is the important component part of solar energy power generating industrial chain.Photovoltaic generation industrial chain is from upstream to downstream, and the industry chain (supply chain) mainly comprising comprises polysilicon, silicon chip, cell piece and battery component.The profit of whole photovoltaic industry and cost nearly all concentrate on the production of polysilicon link of upstream, namely use the crystal of radio-frequency coil to draw, and the crystal reduction process current consumption of reduction furnace and tooling cost account for very most of.

But; due to the appearance of European financial crisis and the lifting of foreign technology; the U.S. is used government subsidy method to national polysilicon processing enterprise; the enterprise with hi-tech and government subsidy can be sold at a low price; for China enterprise, take high Tariff Policy; and European countries cancel sun power subsidy one after another, external order falls sharply, the one tunnel slump of polysilicon price.So in face of Bai China polysilicon enterprise is out and out existence problem.

In fact, polysilicon price reduces, terminal market price is also reducing, and cost of manufacture China of polysilicon also cannot compare favourably with external advanced polysilicon enterprise now, and the polysilicon of our China is to have catered to the needs of photovoltaic industry development and the pattern of going into battle hastily; Be no matter the enterprise of independent research or introducing equipment, technology, compare with international advanced technology, still have larger gap.

The inventor draws many silicon core technology " stove five cores " in success of the test, realized many domestic silicon cores drawing technology breakthrough simultaneously, energy-saving effect is obvious, become the main equipment of energy, Luoyang Zhong Guideng large polycrystalline silicon enterprise in Jiangsu, not only obtain the significantly reduction of production, electric cost, also obtained huge business success.

Yet further reducing costs is the unremitting technology demand of contriver, only reduces production costs, and once draws out more silicon core, polysilicon industry can effectively enhance the competitiveness, the only way which must be passed that Zhe Yeshi China polysilicon industry is come back to life.

Reference:

The online report [China's silicon materials are produced and realized " stove five cores "] in first to file technology for the inventor;

Link network address http://www.cpcia.org.cn/html/news/20094/65746_9044.shtml

It is below relevant Chinese patent application;

1, patent or application number, 200810182052.X; Patent name, can produce the high-frequency coil structure of seven silicon cores and other crystalline material simultaneously;

2, patent or application number, 200810182053.4; Patent name, can produce the high-frequency coil structure of eight silicon cores and other crystalline material simultaneously;

3, patent or application number, 200810182055.3; Patent name, can produce the high-frequency coil structure of five silicon cores and other crystalline material simultaneously;

4, patent or application number, 200810182054.9; Patent name, can produce the high-frequency coil structure of four silicon cores and other crystalline material simultaneously;

5, patent or application number, 200810181998.4; Patent name, can produce the high-frequency coil structure of six silicon core and other crystalline material simultaneously;

6, patent or application number, 201120352975.2; The radio-frequency coil of the drop-shaped drawing hole structure of patent name, eight or nine silicon cores of production;

7, patent or application number, 201120365572.1; The radio-frequency coil of patent name, seven or eight silicon core water-drop-shapeds of production and bat-shaped combination drawing hole;

8, patent or application number, 201120365577.4; The radio-frequency coil of patent name, production five or six silicon core water-drop-shaped and bat-shaped combination drawing hole;

9, patent or application number, 201120352910.8; The radio-frequency coil of the bat-shaped drawing hole structure of patent name, six or seven silicon cores of production;

10, patent or application number, 201120365569.X; The radio-frequency coil of patent name, six or seven silicon core water-drop-shapeds of production and bat-shaped combination drawing hole;

11, patent or application number, 201120365581.0; The radio-frequency coil of patent name, eight or nine silicon core water-drop-shapeds of production and bat-shaped combination drawing hole;

12, patent or application number, 201120352917.X; The radio-frequency coil of the drop-shaped drawing hole structure of patent name, six or seven silicon cores of production;

13, patent or application number, 201120352923.5; The radio-frequency coil of the drop-shaped drawing hole structure of patent name, seven or eight silicon cores of production;

14, patent or application number, 201120352971.4; The radio-frequency coil of the bat-shaped drawing hole structure of patent name, seven or eight silicon cores of production;

15, patent or application number, 201120365527.6; The radio-frequency coil of the drop-shaped drawing hole structure of patent name, production five or six silicon core;

16, patent or application number, 201120352958.9; The radio-frequency coil of the bat-shaped drawing hole structure of patent name, eight or nine silicon cores of production;

17, patent or application number, 201120366356.9; The radio-frequency coil of the bat-shaped drawing hole structure of patent name, production five or six silicon core.

[summary of the invention]

In order to realize described goal of the invention, the invention discloses the radio-frequency coil of 16 or 17 silicon cores of a kind of production, the present invention is by arranging racket-shaped drawing hole or drop-shaped drawing hole between three drawing holes in the setting of cruciform diversion trench outer end and an excessive drawing hole, utilize drainage trough or " V " shape gap that two drawing holes are benefited, increased the drawing hole quantity of radio-frequency coil, make position, the hole layout of radio-frequency coil more reasonable, because position, hole is rationally distributed, also relative equilibrium is melted compared with prior art in fuel rod upper end, significantly reduced the probability that fuel rod upper end contacts with radio-frequency coil, also obtained effective prolongation the work-ing life of radio-frequency coil.

In order to realize the object of foregoing invention, the present invention adopts following technical scheme:

The radio-frequency coil of 16 or 17 silicon cores of a kind of production, comprise radio-frequency coil, cooling water channel, Connection Block and ground wire connection mechanism, outer most surrounding at radio-frequency coil arranges cooling water channel, drawing hole or material hole are arranged on the middle part of radio-frequency coil, by drawing hole or material hole, be outwards radial four diversion trenchs that are provided with, described four diversion trenchs are cruciform, two outer ends in four diversion trench tops and both sides are respectively equipped with drawing hole, the diversion trench outer end of bottom is provided with excessive drawing hole, three drawing holes and excessive drawing hole four diversion trench ends form diamond array, between three drawing holes of diamond array and four neutrals that excessively drawing hole forms, be respectively equipped with two drawing holes and racket-shaped drawing hole or drop-shaped drawing hole, wherein arbitrary described two drawing holes are equidistantly arranged with drawing hole or material hole respectively, the drainage trough in racket-shaped drawing hole or drop-shaped drawing hole or " V " shape gap are towards the outer rim of radio-frequency coil, two drawing holes are in described racket-shaped drawing hole or the drainage trough in drop-shaped drawing hole or both sides, " V " shape gap end, the opening of the opposite side of the corresponding diversion trench of described excessive drawing hole connects the outer edge surface of tremendously high frequency coil, two oral areas of cooling water channel are arranged on the both sides of opening, two oral areas of cooling water channel are respectively equipped with extension pipeline, described extension pipeline forms respectively water channel A end, water channel B end, wherein water channel A end is feed-water end, water channel B end is water side, at water channel A, hold, the end of water channel B end is respectively arranged with Connection Block, or two Connection Blocks are directly welded on the both sides of opening, the outside of described radio-frequency coil is provided with ground wire connection mechanism.

Described production 16 or the radio-frequency coil of 17 silicon cores, in drawing hole, drawing hole or material hole, racket-shaped drawing hole, drop-shaped drawing hole, excessively the place, aperture, top of drawing hole is provided with chamfering.

Described production 16 or the radio-frequency coil of 17 silicon cores, the upper side middle part of described radio-frequency coil is provided with downward concave face, at the bottom surfaces middle part of radio-frequency coil, is provided with the plane that upwards caves in.

Described production 16 or the radio-frequency coil of 17 silicon cores, four the racket-shaped drawing holes or the drop-shaped drawing hole that between three drawing holes of diamond array and four neutrals that excessively drawing hole forms, arrange are all racket-shaped drawing hole; Or be all drop-shaped drawing hole; Or at least one racket-shaped drawing hole other be drop-shaped drawing hole; Or at least one drop-shaped drawing hole other be racket-shaped drawing hole.

Described production 16 or the radio-frequency coil of 17 silicon cores, after two Connection Blocks are worn by the hole arranging on Connection Block respectively in the end of described water channel A end and water channel B end, be fixed on two Connection Blocks, up and down or one side of holding at the water channel A of described two Connection Blocks end, water channel B is respectively equipped with open holes.

Described production 16 or the radio-frequency coil of 17 silicon cores, described Connection Block is polygon Connection Block; Or two semicircle Connection Blocks; Or oval Connection Block.

Described production 16 or the radio-frequency coil of 17 silicon cores, in radio-frequency coil outer most surrounding, cooling water channel being set is, the outside upper ring surface of radio-frequency coil or outside subordinate's anchor ring or outer edge surface fluting, the described cooling water channel ring that copper pipe is formed is embedded in the fluting of radio-frequency coil, then by capping, by soldering or brazing or silver soldering, is welded; Or utilizing " Ω " shape copper pipe to be welded on the outer edge surface of radio-frequency coil, described " Ω " shape copper pipe forms described cooling water channel; The outer edge surface of radio-frequency coil or outside upper ring surface or outside subordinate's anchor ring fluting, then by soldering or brazing or silver soldering, will be sealed on fluting, described fluting forms described cooling water channel, at cooling water channel both ends, the water channel A of connecting copper pipe end, water channel B hold respectively, make cooling water channel and radio-frequency coil form one.

Described production 16 or the radio-frequency coil of 17 silicon cores, described opening is set to " U " shape opening or " V " shape opening or " > > " shape opening or diagonal cut joint.

Described production 16 or the radio-frequency coil of 17 silicon cores, described ground wire connection mechanism, at the outside upper ring surface of radio-frequency coil or lower anchor ring or outer edge surface, be provided with ground wire web plate, or by screw, connect ground wire at the outside upper ring surface of radio-frequency coil or lower anchor ring or outer rim punching.

Owing to adopting technique scheme, the present invention has following beneficial effect:

The radio-frequency coil of production 16 of the present invention or 17 silicon cores, by four diversion trenchs, be set to cruciform, three drawing holes and an excessive drawing hole are set respectively in the outer end of four diversion trenchs, make electric current via route to external expansion, utilization racket-shaped drawing hole or drainage trough or " V " shape gap in drop-shaped drawing hole, make electric current can guide the drawing hole of drainage trough or both sides, " V " shape gap end into, broken through an independently few problem of quantity in drawing hole or racket-shaped drawing hole or drop-shaped drawing hole has been set between original diversion trench, make position, the hole layout of radio-frequency coil more reasonable, and two drawing holes of diversion trench end and excessive drawing hole drawing quantity are between any two improved significantly, drainage trough or " V " shape gap guide current by racket-shaped drawing hole or drop-shaped drawing hole make drawing hole or material hole current reduction, also avoided the inner side problems of excessive heat of described drawing hole simultaneously, make comparatively balanced and reasonable of distribution of current, the seed crystal ovality drawing out has obtained very large overcoming, the present invention has realized same or has approached the silicon core that big or small radio-frequency coil can draw out more multiple coincidence design requirements, has significantly reduced the probability that fuel rod upper end contacts with radio-frequency coil, has also obtained effective prolongation the work-ing life of radio-frequency coil, structure of the present invention increases substantially silicon core yield rate, the present invention has reduced electric energy usage quantity, has improved capacity usage ratio, reduce production costs and reduce fraction defective and there is the advantages such as homogeneous heating, a large amount of save energy, minimizing facility investment and artificial comprehensive cost can effectively reduce, being easy in the promotion and implementation of polysilicon industry.

[accompanying drawing explanation]

Fig. 1 is drawing hole of the present invention, racket-shaped drawing hole and diversion trench layout structure schematic diagram.

Fig. 2 is the A-A view of Fig. 1.

Fig. 3 is another example structure schematic diagram of drawing hole of the present invention, drop-shaped drawing hole and diversion trench layout.

Fig. 4 is the first embodiment diagonal cut joint structural representation of opening of the present invention.

Fig. 5 is combination and the diversion trench layout structure schematic diagram in drawing hole of the present invention, racket-shaped drawing hole, drop-shaped drawing hole.

Fig. 6 is the B-B view of Fig. 5.

Fig. 7 is the second embodiment straight opening structural representation of opening of the present invention.

Fig. 8 is the 3rd embodiment " U " shape hatch frame schematic diagram of opening of the present invention.

Fig. 9 is the 4th embodiment " V " shape hatch frame schematic diagram of opening of the present invention.

Figure 10 is the second embodiment " > > " shape hatch frame schematic diagram of opening of the present invention.

Figure 11 is racket-shaped drawing of the present invention hole drainage trough the first example structure schematic diagram.

Figure 12 is racket-shaped drawing of the present invention hole drainage trough the second example structure schematic diagram.

Figure 13 is racket-shaped drawing of the present invention hole drainage trough the 3rd example structure schematic diagram.

Figure 14 is racket-shaped drawing of the present invention hole drainage trough the 4th example structure schematic diagram.

Figure 15 is drop-shaped drawing of the present invention hole perspective view.

Figure 16 is Connection Block the first embodiment rectangle Connection Block perspective view of the present invention.

Figure 17 is the two semicircle Connection Block perspective view of Connection Block the second embodiment of the present invention.

Figure 18 is Connection Block of the present invention the 3rd another replacing structure schematic diagram of embodiment rectangle Connection Block.

In the drawings: 1, radio-frequency coil; 2, chamfering; 3, racket-shaped drawing hole; 4, drawing hole or material hole; 5, drawing hole; 6, opening; 7, water channel A end; 8, Connection Block; 9, water channel B end; 10, excessive drawing hole; 11, diversion trench; 12, cooling water channel; 13, downward concave face; 14, ground wire web plate; 15, the plane that upwards caves in; 16, capping; 17, drop-shaped drawing hole; 18, drainage trough; 19, " V " shape gap; 20, open holes.

[embodiment]

With reference to the following examples, can explain in more detail the present invention; But the present invention is not limited to these embodiment.

By reference to the accompanying drawings 1, the radio-frequency coil of the production 16 described in 2 or 3 or 17 silicon cores, comprise radio-frequency coil 1, cooling water channel 12, Connection Block 8 and ground wire connection mechanism, the upper side middle part of described radio-frequency coil 1 is provided with downward concave face 13, bottom surfaces middle part at radio-frequency coil 1 is provided with the plane 15 that upwards caves in, outer most surrounding at radio-frequency coil arranges cooling water channel 12, drawing hole or material hole 4 are arranged on the middle part of radio-frequency coil 1, by drawing hole or material hole 4, be outwards radial four diversion trenchs 11 that are provided with, described four diversion trenchs 11 are cruciform, three in seemingly individual diversion trench 11 outer ends are provided with drawing hole 5, another outer end is set to excessive drawing hole 10, make three drawing holes 5 and an excessive drawing hole 10 be down the outer end that rhombus is distributed in four diversion trenchs 11, in three drawing holes 5 of rhombus and " namely between four neutrals " between any two of an excessive drawing hole 10, be respectively equipped with two drawing holes 5 and racket-shaped drawing hole 3 or drop-shaped drawing hole 17, wherein arbitrary described two drawing holes 5 are equidistantly arranged with drawing hole or material hole 4 respectively, the drainage trough 18 in racket-shaped drawing hole 3 or drop-shaped drawing hole 17 or " V " shape gap 19 are towards the outer rim of radio-frequency coil 1, two drawing holes 5 drainage trough 18 or " V " shape gap 19 both sides, end in described racket-shaped drawing hole 3 or drop-shaped drawing hole 17, four the racket-shaped drawing holes 3 or the drop-shaped drawing hole 17 that between four neutrals that form in four diversion trenchs, 11 outer ends, arrange are all racket-shaped drawing hole 3 " embodiment providing in accompanying drawing 1 ", or be all drop-shaped drawing hole 17 " embodiment providing in accompanying drawing 3 ", or " in accompanying drawing 5 or 6 " two racket-shaped drawing holes 3, two drop-shaped drawing holes 17, or at least one racket-shaped drawing hole 3 other be drop-shaped drawing hole 17, , or at least one drop-shaped drawing hole 17 other for racket-shaped drawing hole 3, " in figure, do not show this two kinds of layouts, but those skilled in the art can pass through Fig. 1, Fig. 3 realizes the set-up mode in above-mentioned two kinds of racket-shaped drawing holes 3 and drop-shaped drawing hole 17 in conjunction with the displacement in the racket-shaped drawing hole 3 in Fig. 5 and drop-shaped drawing hole 17 ", at described drawing hole 5, drawing hole or material hole 4, racket-shaped drawing hole 3, excessive drawing hole 10, the place, aperture, top in drop-shaped drawing hole 17 is provided with chamfering 2, described in the excessive drawing hole 10 that four diversion trench that is cruciform diversion trench 11 bottoms 11 outer ends arrange, the relative opposite side of diversion trench 11 connects the outer edge surface of tremendously high frequency coils 1 by opening 6, two oral areas of cooling water channel are arranged on the both sides of diversion trench 11 or opening, two oral areas of cooling water channel are respectively equipped with extension pipeline, described extension pipeline forms respectively water channel A end, water channel B end, wherein water channel A end is feed-water end, water channel B end is water side, at water channel A, hold, the end of water channel B end is respectively arranged with Connection Block, or two Connection Blocks are directly welded on the both sides of opening, the outside of described radio-frequency coil is provided with ground wire connection mechanism, described ground wire connection mechanism, at the outside upper ring surface of radio-frequency coil 1 or lower anchor ring or outer edge surface, be provided with ground wire web plate 14, or by screw, connect ground wire at the outside upper ring surface of radio-frequency coil 1 or lower anchor ring or outer rim punching.

Further, 4 or 7～10 opening providing 6 replacing structures by reference to the accompanying drawings, described opening 6 is set to " U " shape opening 6 or " V " shape opening 6 or " > > " shape opening 6 or diagonal cut joint 6.

Further, the end of described water channel A end 7 and water channel B end 9 is fixed on two Connection Blocks 8 after wearing two Connection Blocks 8 by the hole arranging on Connection Block 8 respectively, in up and down or one side of the water channel A of described two Connection Blocks 8 end 7, water channel B end 9, is respectively equipped with open holes 21; Described Connection Block 8 is polygon Connection Block 8; Or two semicircle Connection Blocks 8; Or oval Connection Block 8; In accompanying drawing 16,17,18, provided respectively the structure of square and two semicircle Connection Blocks 8.

Further, in radio-frequency coil 1 outer most surrounding, cooling water channel 12 being set is, the outside upper ring surface of radio-frequency coil 1 or outside subordinate's anchor ring or outer edge surface fluting, described cooling water channel 12 rings that copper pipe is formed are embedded in the fluting of radio-frequency coil 1, then by capping 16, by soldering or brazing or silver soldering, are welded; Or 5 or 6 utilize " Ω " shape copper pipe to be welded on the outer edge surface of radio-frequency coil 1 by reference to the accompanying drawings, the copper coin of the less and same thickness of described radio-frequency coil 1 used thickness, described " Ω " shape copper pipe forms described cooling water channel 12, cooling water channel 12 diameters that form due to copper pipe are larger than the thickness of copper coin, the upper inner of copper pipe and radio-frequency coil 1 upper side form the downward concave face 13 of radio-frequency coil 1, and described radio-frequency coil 1 bottom surfaces of the lower inside of copper pipe forms the plane 15 that upwards caves in of radio-frequency coil 1; Or slot at the outer edge surface of radio-frequency coil, then by soldering or brazing or silver soldering by capping 16 on fluting, described fluting forms described cooling water channel 12, and at cooling water channel 12 both ends, water channel A end 7, the water channel B of connecting copper pipe hold 9 respectively, makes cooling water channel 12 and radio-frequency coil 1 form one.

Further, in accompanying drawing 11～14, the present invention has also provided interchangeable structural changes for drainage trough 18 outer ends in racket-shaped drawing hole 3, namely above-mentioned drainage trough 18 ends can be set to wedge angle or circular shape, any setting of drainage trough 18 ends of wedge angle or circular shape, object is guide current, there is no other special efficacy, and namely the drawing hole junction in drainage trough 18 and racket-shaped drawing hole 3 is set to arc transition or angle transition principle is: electric current steadily passes through thus.

Further, drawing hole of the present invention or material hole 4 can be determined according to technical capacity, namely drawing hole or material hole 4 both can be used as drawing hole, also can be used as material hole, this is because middle part is slightly high with respect to outside temperature, if control proper " when operative employee's technology is better, described drawing hole or material hole 4 also can draw out silicon core, but the quality of silicon core is slightly inferior ", so not getting rid of middle part, the present invention [not it should be noted that due in inventor's patent infringement case formerly as drawing hole or as the substitute mode in material hole, because state of the art reaches, " this tundish is not containing the setting of component in equipment in certain infringement enterprise, each component position relationship, the top 5 factor in industrial production namely: personnel, equipment, raw material, working method and production environment, key is operative employee's actually operating horizontal constraints, this enterprise without mider hole as drawing hole ' this enterprise think that mider hole can not pull come ', just the drawing hole of emphasizing again and again middle part can not pull silicon core, by the He Mou of Patent Re-examination Board city intermediate people's court and Beijing No. 1 Intermediate People's Court, confirm the on-the-spot pulling process video recording that the inventor provides, proof has realized the regulation that can realize of guidelines for examination regulation in first to file "], aforementioned content is not for any enterprise, only that the inventor is for the explanation of the state of the art be convenient to auditor and those skilled in the art's understanding.

Implement the radio-frequency coil of production 16 of the present invention or 17 silicon cores, all wedge angles of excessively locating in the top and bottom of the opening 6 of radio-frequency coil 1, excessive hole 10, racket-shaped drawing hole 3, drop-shaped drawing hole 17, drawing hole or material hole 4, diversion trench 11, excessive drawing hole 10 and radio-frequency coil 1 carry out rounding processing, have effectively prevented that wedge angle from discharging and ablation, the use procedure of radio-frequency coil of the present invention is as described below: fuel rod upper end is preferably set to plane or approaches plane, utilize the lower shaft jacking system of equipment that fuel rod is slowly delivered to radio-frequency coil 1 bottom, the plane 15 that upwards caves in of described radio-frequency coil 1 approaches fuel rod upper end as much as possible, but must not contact with fuel rod " once this is to burn out radio-frequency coil because contact in production process just there will be sparking ", then at the water channel A of radio-frequency coil 1 upper connecting base 8 end 7, water is sent in 9 energisings of water channel B end, 9 one another drainings of water inlet of water channel A end 7 and water channel B end, at this moment high-frequency current impels radio-frequency coil 1 to produce powerful magnetic line of force, make fuel rod upper end utilize magnetic line of force to carry out induction heating near the part of radio-frequency coil 1, described racket-shaped drawing hole 3 or drop-shaped drawing hole 17, drawing hole 5, excessive drawing hole 10, the space that diversion trench 11 and drawing hole or material hole 4 form, make corresponding gap, fuel rod upper end be subject to induction heating, Heating temperature is greater than other position and forms molten district " it is current circuit for electric current enters another that diversion trench 11 of the present invention and opening 6 make water channel A end 8 and 10 1, water channel B end, electric current be subject to the taking a shorter way impact of characteristic, during around cruciform diversion trench 11, also simultaneously via the both sides process in two drawing holes 5 between diversion trench 11 and racket-shaped drawing hole 3 or drop-shaped drawing hole 17 between two, the effect of cruciform diversion trench 11 of the present invention is to reduce high-frequency current too at the middle part of radio-frequency coil, to concentrate, electric current is uniformly distributed on radio-frequency coil 1, to realize the effect being heated evenly ", until the termination of fuel rod near after melting near the position of the plane 15 that upwards caves in below radio-frequency coil 1, young brilliant chuck is with 16 or 17 young brilliant declines, make young brilliant in inserting the melting area of fuel rod upper end after drawing hole, then promote young brilliant, the melt cognition on fuel rod top is followed young brilliant rising, the liquid that melt at other position also can " it should be noted that radio-frequency coil 1 planeness of the present invention is obviously better than me in first to file to drawing position trickling thereupon, by identical operative employee and identical equipment, experimental results show that radio-frequency coil of the present invention has extended more than at least one times work-ing life ", the lower shaft of fuel rod bottom is also corresponding in this course follows synchronous rising, but its fuel rod will keep not contacting with radio-frequency coil 1, the melting area on fuel rod top is in young brilliant gluing and drive and pass through after radio-frequency coil 1 drawing hole, and the condensation due to weakening of magnetic line of force, just forms a new column type crystal, and its young brilliant chuck is carried young brilliant rising secretly, just can form the finished silicon core of desired length.

Drawing 16 silicon core has simultaneously been realized in three drawing hole 5 of the present invention by eight drawing holes 5, diversion trench 11 ends and excessive drawing hole 10, four racket-shaped drawing holes 3 or drop-shaped drawing hole 17, the object that simultaneously draws 17 silicon cores during as drawing hole, can be realized in drawing hole at described middle part or material hole.

Claims (9)

1. a radio-frequency coil of producing 16 or 17 silicon cores, comprise radio-frequency coil (1), cooling water channel (12), Connection Block (8) and ground wire connection mechanism, outer most surrounding at radio-frequency coil arranges cooling water channel (12), drawing hole or material hole (4) are arranged on the middle part of radio-frequency coil (1), it is characterized in that: by drawing hole or material hole (4), be outwards radial four diversion trenchs (11) that are provided with, described four diversion trenchs (11) are cruciform, two outer ends in four diversion trench (11) tops and both sides are respectively equipped with drawing hole (5), the diversion trench of bottom (11) outer end is provided with excessive drawing hole (10), in three drawing holes (5) of four diversion trenchs (11) end and excessively drawing hole (10) formation diamond array, between four neutrals of three drawing holes (5) of diamond array and excessively drawing hole (10) formation, be respectively equipped with two drawing holes (5) and a racket-shaped drawing hole (3) or drop-shaped drawing hole (17), wherein arbitrary described two drawing holes (5) are equidistantly arranged with drawing hole or material hole (4) respectively, the drainage trough (18) of racket-shaped drawing hole (3) or drop-shaped drawing hole (17) or " V " shape gap (19) are towards the outer rim of radio-frequency coil (1), two drawing holes (5) are in described racket-shaped drawing hole (3) or the drainage trough (18) of drop-shaped drawing hole (17) or " V " shape gap (19) both sides, end, the opening (6) of the opposite side of the corresponding diversion trench of described excessive drawing hole (10) (11) connects the outer edge surface of tremendously high frequency coil (1), two oral areas of cooling water channel are arranged on the both sides of opening, two oral areas of cooling water channel (12) are respectively equipped with extension pipeline, described extension pipeline forms respectively water channel A end (7), water channel B holds (9), wherein water channel A end (7) is feed-water end, water channel B end (9) is water side, at water channel A end (7), the end of water channel B end (9) is respectively arranged with Connection Block (8), or two Connection Blocks (8) are directly welded on the both sides of opening, the outside of described radio-frequency coil is provided with ground wire connection mechanism.

2. the radio-frequency coil of production 16 as claimed in claim 1 or 17 silicon cores, is characterized in that: in drawing hole (5), drawing hole or material hole (4), racket-shaped drawing hole (3), drop-shaped drawing hole (17), excessively the place, aperture, top of drawing hole (10) is provided with chamfering (2).

3. the radio-frequency coil of production 16 as claimed in claim 1 or 2 or 17 silicon cores, it is characterized in that: the upper side middle part of described radio-frequency coil (1) is provided with downward concave face (13), at the bottom surfaces middle part of radio-frequency coil (1), be provided with the plane that upwards caves in (15).

4. the radio-frequency coil of production 16 as claimed in claim 1 or 2 or 17 silicon cores, is characterized in that: four the racket-shaped drawing holes (3) or drop-shaped drawing hole (17) that between three drawing holes (5) of diamond array and four neutrals of excessively drawing hole (10) formation, arrange are all racket-shaped drawing hole (3); Or be all drop-shaped drawing hole (17); Or at least one racket-shaped drawing hole (3) other be drop-shaped drawing hole (17); Or at least one drop-shaped drawing hole (17) other be racket-shaped drawing hole (3).

5. the radio-frequency coil of production 16 as claimed in claim 1 or 17 silicon cores, it is characterized in that: described water channel A is fixed on two Connection Blocks (8) above after holding the end of (7) and water channel B end (9) to wear two Connection Blocks (8) by the upper hole arranging of Connection Block (8) respectively, at the water channel A of described two Connection Blocks (8), holds (7), up and down or one side of water channel B end (9) is respectively equipped with open holes (20).

6. the radio-frequency coil of production 16 as claimed in claim 5 or 17 silicon cores, is characterized in that: described Connection Block (8) is polygon Connection Block (8); Or two semicircle Connection Blocks (8); Or oval Connection Block (8).

7. the radio-frequency coil of production 16 as claimed in claim 1 or 17 silicon cores, it is characterized in that: in radio-frequency coil (1) outer most surrounding, cooling water channel (12) being set is, the outside upper ring surface of radio-frequency coil (1) or outside subordinate's anchor ring or outer edge surface fluting, described cooling water channel (12) ring that copper pipe is formed is embedded in the fluting of radio-frequency coil (1), then by capping (16), by soldering or brazing or silver soldering, is welded; Or utilizing " Ω " shape copper pipe to be welded on the outer edge surface of radio-frequency coil, described " Ω " shape copper pipe forms described cooling water channel (12); The outer edge surface of radio-frequency coil or outside upper ring surface or outside subordinate's anchor ring fluting, then by soldering or brazing or silver soldering by capping (16) on fluting, described fluting forms described cooling water channel (12), at cooling water channel (12) both ends, the water channel A of connecting copper pipe end (7), water channel B hold (9) respectively, make cooling water channel (12) and radio-frequency coil (1) form one.

8. the radio-frequency coil of production 16 as claimed in claim 1 or 17 silicon cores, is characterized in that: described opening (6) is set to " U " shape opening (6) or " V " shape opening (6) or " > > " shape opening (6) or diagonal cut joint (6).

9. the radio-frequency coil of production 16 as claimed in claim 1 or 17 silicon cores, it is characterized in that: described ground wire connection mechanism, at the outside upper ring surface of radio-frequency coil (1) or lower anchor ring or outer edge surface, be provided with ground wire web plate (14), or by screw, connect ground wire at the outside upper ring surface of radio-frequency coil (1) or lower anchor ring or outer rim punching.

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