CN207699722U - A kind of painting crucible having edge sealing - Google Patents
A kind of painting crucible having edge sealing Download PDFInfo
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- CN207699722U CN207699722U CN201721801400.8U CN201721801400U CN207699722U CN 207699722 U CN207699722 U CN 207699722U CN 201721801400 U CN201721801400 U CN 201721801400U CN 207699722 U CN207699722 U CN 207699722U
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- crucible
- carbon fiber
- edge portion
- middle ring
- fiber rope
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- 238000007789 sealing Methods 0.000 title claims abstract description 41
- 238000010422 painting Methods 0.000 title claims abstract description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 68
- 239000004917 carbon fiber Substances 0.000 claims abstract description 68
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 68
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 32
- 229910052799 carbon Inorganic materials 0.000 claims description 26
- 239000000835 fiber Substances 0.000 claims description 20
- 238000009954 braiding Methods 0.000 claims description 10
- 238000009941 weaving Methods 0.000 claims description 9
- 238000009940 knitting Methods 0.000 claims description 3
- 238000000197 pyrolysis Methods 0.000 claims description 2
- 239000002296 pyrolytic carbon Substances 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 19
- 239000000463 material Substances 0.000 abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 8
- 239000007767 bonding agent Substances 0.000 abstract description 5
- 238000007740 vapor deposition Methods 0.000 abstract description 5
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- 239000012943 hotmelt Substances 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000002131 composite material Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 229910002804 graphite Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 229910052571 earthenware Inorganic materials 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Abstract
The utility model is related to a kind of painting crucible having edge sealing, the crucible includes crucible crucible nation and the crucible bottom of edge sealing.The crucible crucible nation of the application and crucible bottom are woven using a carbon fiber rope or more carbon fiber ropes, do not need needling preform, do not need the procedure of processing of the vapor deposition of bonding agent and overlong time, save working hour；The high disadvantage of precast body crucible poor flexibility, brittleness is overcome, the thermal deformation stress of silica crucible can be effectively absorbed；The weight for greatly reducing crucible crucible nation simultaneously, reduces the hot melt and impurity content of crucible, substantially reduces material cost and use cost.
Description
Technical field
The utility model is related to a kind of application of carbon fibre composite in the manufacturing process of monocrystalline silicon or polysilicon, tools
Body is related to a kind of painting crucible for having edge sealing made of carbon fibre composite braiding.
Background technology
In the making of monocrystalline silicon, vertical pulling method (CZ methods) is generally used at present, is exactly drawn from melt along vertical direction
The method of monocrystalline processed.It is graphite crucible there are one component in manufacturing equipment, it is for carrying internal silica crucible.
In use, different with the coefficient of expansion of graphite crucible due to silica crucible, and silicon steam will produce erosion with graphite
The reason of reaction, there are graphite crucible cracking, corrodes and loses the problems such as strong.Moreover, the crystal diameter with monocrystalline silicon growing is more next
Thicker, the diameter of corresponding single crystal growing furnace also the more does the more big, also requires the reliability of thermal field so higher and higher.Due to graphite earthenware
The limitation of crucible intensity, more big so its wall thickness requirement of diameter is also bigger, so weight is very heavy, and thermal capacitance is very high, causes to grasp
Make heavy, energy consumption increase, cost raising.
As the technology without using large scale graphite crucible, there is that applicant proposed make including passing through winding filament method
Carbon fiber is configured to crucible shape, uses resin or pitch as matrix and be dipped into and then be fired to manufacture by carbon/carbon fiber
The technology of crucible made of dimension composite wood (hereinafter referred to as C/C composite woods), and including carbon cloth to be attached on finishing die,
It is molded and is cured to obtain carbon fiber-reinforced plastic and then impregnate and fire to manufacture the earthenware made of C/C composite woods
The technology of crucible...Etc..Such as patent No. 200910118210.X discloses a kind of crucible holding member of hollow reticulate body, profit
It is woven with more rope strands, forms the crucible holding member of reticulate body；But these crucibles for being knitted to form, it is necessary to by being added
Binder, high temperature cabonization, vapor deposition procedure of processing, waste time very much, but the edge of these crucibles does not all add
Strength is managed, and does not have surface coated treatment, and so in use, the marginal portion of crucible is very easy to corrosion, causes
Insufficient strength.
Therefore, the crucible of the prior art also has the place promoted.
Utility model content
The purpose of this utility model is to provide a kind of painting crucible for having edge sealing of carbon fibre composite braiding, utilizes envelope
Side connects and face coat, to solve problem of the prior art.
To achieve the above object, the utility model uses technical solution below：
A kind of painting crucible having edge sealing, a kind of carbon fiber being applied in the manufacturing process of monocrystalline silicon or polysilicon are compound
The application field of material, the crucible include crucible crucible nation and the crucible bottom of edge sealing.
According to the crucible described in the application preferred embodiment, which is characterized in that it is that an annular hollow is netted to state crucible crucible nation
Body, including：Upper seal edge portion, middle ring portion and lower sealing edge portion, the upper seal edge portion, middle ring portion and lower sealing edge portion sequentially connect；Wherein,
The middle ring portion is a circular hollow reticulate body, and the circular hollow reticulate body of the middle ring portion is by by one or more carbon fiber
Rope is woven into relative to the oblique alignment of the central shaft of the middle ring portion and is formed；The upper seal edge portion and lower sealing edge portion are annular
Body is woven by carbon fiber rope described in one or more, the count of the upper seal edge portion and lower sealing edge portion, than middle ring portion
Count it is big.
According to the crucible described in the application preferred embodiment, it is the hollow reticulate body of a bowl-type to have the crucible crucible bottom of edge sealing, is used
One or more carbon fiber rope weaves.
According to the crucible described in the application preferred embodiment, the reticulate body of the middle ring portion is by one or more carbon fiber rope
It is aligned along the first direction relative to the inclined first angle；By one or more carbon fiber rope along relative to described
The second direction of inclined second angle is aligned；The second angle is identical as the first angle, and wherein described
First direction is with the second direction relative to described substantially symmetrical about its central axis.
According to the crucible described in the application preferred embodiment, each of the carbon fiber rope includes more carbon fiber yarns
Line, the center of rope are the carbon fibre thread for being parallel to rope axle center, are parallel to outside the carbon fibre thread in axle center and coat carbon fiber
Tie up woven tube.
According to the crucible described in the application preferred embodiment, the crucible bottom is the hollow reticulate body of a bowl-type, the crucible bottom
The hollow reticulate body of bowl-type is formed by weaving one or more carbon fiber rope.
According to the crucible described in the application preferred embodiment, the weaving manner is knitting or woven.
According to the crucible described in the application preferred embodiment, the surface at the crucible nation and crucible bottom is with pyrolytic carbon or pyrolysis stone
Ink or coat of silicon carbide.
As a result of above technical solution so that the utility model has the following advantages effect：
The first, the crucible of the application need not impregnate, cure, the procedure of processing of high temperature cabonization, save working hour；
The second, the crucible of the application need not use bonding agent, reduce solidification process, reduce material and process costs, nothing
Pollution；
Third, the application crucible woven using straight carbon fiber rope, idiosome, the plasticity of shape need not be made
By force, it is not limited, can be produced in batches with flexible design and shorten the delivery cycle by idiosome, material processing waste is few；
4th, the edge sealing design of the application, can effectively connect carbon fiber rope need not use bonding agent, and support force is strong,
Solves the problems, such as connection.
5th, the edge sealing design of the application, can effectively reinforce crucible edge, play the role of anticorrosion and enhancing.
6th, surface treatment was done on the crucible of the application, surface, can effectively reduce corrosion, extended the service life.
Certainly, implement any one specific embodiment of teachings herein, there might not be the skill of all of the above simultaneously
Art effect.
Description of the drawings
Fig. 1 is crucible schematic diagram；
Fig. 2 is carbon fiber woven tube schematic diagram；
Fig. 3 is one of braiding schematic diagram；
Fig. 4 is weave schematic diagram two；
Fig. 5 is weave schematic diagram three；
Fig. 6 is weave schematic diagram four.
Specific implementation mode
For ease of understanding, the preferred embodiment of the utility model is described in further detail below in conjunction with attached drawing.
The core concept of the application is, makes a kind of crucible, in the effective service life improved with beyond tradition crucible, uses
Braiding structure makes, sectional design, and edge part edge sealing is reinforced, face coat, while providing and a kind of making this crucible
Method.This crucible can be according to actual its structure of design requirement flexible design, without remaking idiosome, Neng Gouyou
It imitates cost-effective and shortens delivery date, while can produce in batches；And the design of edge sealing, binder can not be used, so
Do not need high temperature cabonization, vapor deposition procedure of processing, saved working hour, while can effectively enhance crucible edge, raising makes
Use the service life；It after being surface-treated, can effectively delay the erosion of silicon steam, achieve the effect that check and accept the service life.
Below in conjunction with attached drawing, the application is illustrated.Fig. 1 and Fig. 2 are referred to, a kind of painting crucible having edge sealing is described
Crucible includes crucible crucible nation 10 and the crucible bottom 20 of edge sealing, a kind of carbon fiber being applied in the manufacturing process of monocrystalline silicon or polysilicon
The application field of composite material is tieed up, crucible crucible nation 10 is an annular hollow reticulate body, and the crucible bottom 20 is that a bowl-type is hollow
Reticulate body.Crucible nation 10 includes：Upper seal edge portion 11, middle ring portion 12 and lower sealing edge portion 13, the upper seal edge portion 11, middle ring portion 12 and under
Seal edge portion 13 sequentially connects；Wherein, the middle ring portion 12 is a circular hollow reticulate body, has and is open in upper and lower surface
Be substantially cylinder hollow shape, the circular hollow reticulate body of the middle ring portion 12 is by by one or more carbon fiber rope
30 are woven into relative to the oblique alignment of the central shaft of the middle ring portion 12 and are formed.Each of the carbon fiber rope 30 include
More carbon fibre threads, the center of rope are the carbon fibre thread for being parallel to rope axle center, are parallel to the carbon fibre thread in axle center
Outside carbon coated fiber braided tube 40.
The upper seal edge portion 11 and lower sealing edge portion 13 are annular solid, by the braiding of carbon fiber rope described in one or more 30
At the upper seal edge portion 11 is different with the weaving method in lower sealing edge portion 13 and the weaving method of middle ring portion 12, the upper seal edge portion
11 and lower sealing edge portion 13 count ratio in ring portion 12 count it is big；The reticulate body of the middle ring portion 12 is by one or more
Root carbon fiber rope 30 is along the first direction alignment relative to the inclined first angle；By one or more carbon fiber rope
30 are aligned along the second direction relative to the inclined second angle；The second angle and the first angle phase
Together, and the wherein described first direction with the second direction relative to described substantially symmetrical about its central axis.
The reticulate body of middle ring portion 12 can ensure high intensity, because with braided fabric between carbon fiber rope 30 and carbon fiber rope 30
Shape is interlaced with one another, and can firmly hold even with heavy weight silica crucible.In addition, in embodiments, carbon
The oblique alignment of central shaft of cordage 30 and carbon fiber rope 30 relative to reticulate body, rather than along perpendicular to the direction pair of central shaft
Together, thus the lower structure of rigidity of circumferencial direction is obtained.In consideration of it, even if causing making along circle due to above-mentioned
When the power of circumferential direction expansion acts on crucible, distorted by the grid that carbon fiber rope 30 and carbon fiber rope 30 are formed, thus reticulate body
Can along the circumferential direction it become larger, so as to absorb the expansion of circumferencial direction.Therefore, it is not possible to which the fracture of carbon fiber, shape occurs
Shape will not largely be lost, so crucible has excellent shape stability.
In addition, in reticulate body, carbon fiber rope 30 and carbon fiber rope 30 can suitably become relative to the angle of inclination of central shaft
Change, this depends on the rigidity needed for crucible each section.The rigid of the circumferencial direction of reticulate body can be adjusted by change angle of inclination
Property, therefore the rigidity of circumferencial direction can correspond to purposes or be changed according to each section of reticulate body.In other words, first angle
Change with the different piece of hollow reticulate body with second angle.
Carbon fiber rope 30 is formed each by making about tens thousand of carbon fiber bunchys.As the carbon fiber for constituting carbon fiber rope 30
Dimension can use asphalt base carbon fiber, PAN base carbon fibres, viscose base carbon fibre etc..The carbon fiber for constituting carbon fiber rope 30 can be with
For identical material or different materials.
The upper seal edge portion 11 and the weaving manner in lower sealing edge portion 13 are knitting or woven, please refer to Fig.3, Fig. 4, Fig. 5 and
Shown in Fig. 6, for the various weaving manners of upper seal edge portion 11 and lower sealing edge portion 13, by the way that one or more carbon fiber rope 30 is woven
It is formed.
Hereinafter, being explained with the braiding of carbon fiber rope 30 to manufacture the process of crucible.
A kind of painting crucible having edge sealing, the crucible include crucible crucible nation 10 and the crucible bottom 20 of edge sealing, are applied to single
A kind of application field of carbon fibre composite in the manufacturing process of crystal silicon or polysilicon, crucible crucible nation 10 are an annular
Hollow reticulate body, the crucible bottom 20 are the hollow reticulate body of a bowl-type.Crucible nation 10 includes：Upper seal edge portion 11, middle ring portion 12 and lower envelope
Edge 13, the upper seal edge portion 11, middle ring portion 12 and lower sealing edge portion 13 sequentially connect；The circular hollow of the middle ring portion 12 is netted
Body is formed by one or more carbon fiber rope 30 is woven into alignment oblique relative to the central shaft of the middle ring portion 12, institute
State carbon fiber rope 30 each includes more carbon fibre threads.
Manufacturing step includes：
Step 1:Structure design is carried out to the structure of crucible；
According to actual Thermal Design require flexible design crucible structure, idiosome need not be made, can it is effectively save at
Originally and shorten delivery date, while can produce in batches；
Step 2：According to structure design, summarizes modeling in 3D softwares, calculate length, the quantity of carbon fiber rope 30；
It is crucible nation 10 and crucible bottom 20 by the STRUCTURE DECOMPOSITION of crucible, crucible nation 10 includes upper seal edge portion 11, middle ring portion 12 and lower envelope
Edge 13；
Step 3：Each of the carbon fiber rope 30 includes more carbon fibre threads, and the center of rope is to be parallel to
The carbon fibre thread in rope axle center is parallel to carbon coated fiber braided tube 40 outside the carbon fibre thread in axle center；
As the carbon fiber for constituting carbon fiber rope 30, asphalt base carbon fiber, PAN base carbon fibres, viscose base carbon can be used
Fiber etc..The carbon fiber for constituting carbon fiber rope 30 can be identical material or different materials；
Step 4：The middle ring portion to form circular hollow reticulate body is processed to carbon fiber rope 30 according to designed drawing
12；
Central shaft oblique alignment of the carbon fiber rope 30 relative to reticulate body, carbon fiber rope 30 are interlaced with one another with braided fabric shape.
One or more carbon fiber rope 30 is along the first direction alignment relative to the inclined first angle；One or more carbon
Cordage 30 along relative to the inclined second angle second direction alignment, the second angle with described first jiao
Spend it is identical, and the wherein described first direction with the second direction relative to described substantially symmetrical about its central axis；
Step 5：Ring portion 12 is woven above and below in, seal edge portion 11 and lower sealing edge portion 13 in formation；
It is that the Design of length of carbon fiber rope 30 is good when design, in braiding after ring portion 12, there is the length having more up and down
Degree, for weaving upper seal edge portion 11 and lower sealing edge portion 13, the presence in upper seal edge portion 11 and lower sealing edge portion 13 can make crucible connect
It connects firm, does not need binder, carbonization, the technique of vapor deposition and working hour can be saved.Upper seal edge portion 11 and lower sealing edge portion 13
After the completion of braiding, the braiding of crucible crucible nation 10 just completes；
Step 6：High-temperature firing, coating obtain required crucible；
In inert atmosphere stove, according to coating type, it is passed through inhomogeneous gas, at a certain temperature, coating, sintering,
Finally obtain required crucible.
Preferably, wherein 12 reticulate body of middle ring portion of circular hollow reticulate body is by one or more carbon fiber rope 30 along phase
First direction alignment for the inclined first angle；By one or more carbon fiber rope 30 along relative in described
The second direction of spindle tilt second angle is aligned；The second angle is identical as the first angle, and wherein described
One direction is with the second direction relative to described substantially symmetrical about its central axis.
Compared with the crucible of the prior art, the crucible of the application is woven using the carbon fiber rope 30 of carbon fibre composite,
Idiosome need not be made, the shape of crucible is not limited by idiosome, can be criticized with flexible design since raw material specification is unified
Amount production, and production efficiency greatly improves, at the same do not need in crucible manufacturing process binder sintering or vapor deposition or
Liquid deposition, working hour greatly shorten, so cost is relatively low, the delivery cycle is short, are easy to supply.
Make the application compared with prior art as a result of above technology, has the following advantages that and good effect：
The first, the crucible of the application need not impregnate, cure, the procedure of processing of high temperature cabonization, save working hour；
The second, the crucible of the application need not use bonding agent, reduce solidification process, reduce material and process costs, nothing
Pollution；
Third, the application crucible woven using straight carbon fiber rope 30, idiosome, the plasticity of shape need not be made
By force, it is not limited, can be produced in batches with flexible design and shorten the delivery cycle by idiosome, material processing waste is few；
4th, the edge sealing design of the application, can effectively connect carbon fiber rope 30 need not use bonding agent, support force
By force, connection is solved the problems, such as.
5th, the edge sealing design of the application, can effectively reinforce crucible edge, play the role of anticorrosion and enhancing.
6th, surface treatment was done on the crucible of the application, surface, can effectively reduce corrosion, extended the service life.
Certainly, any one specific embodiment for implementing the utility model content, might not have all of the above simultaneously
Technique effect.
Disclosed above is only the preferred embodiment of the utility model, but is not used for limiting itself, any to be familiar with
The equivalent change and change that those skilled in the art is done without prejudice to the spirit of the present invention intension, should all
It falls within the protection scope of the present utility model.
Claims (8)
1. a kind of painting crucible having edge sealing, which is characterized in that the crucible includes crucible crucible nation and the crucible bottom of edge sealing, described
Crucible crucible nation is an annular hollow reticulate body, including：Upper seal edge portion, middle ring portion and lower sealing edge portion, the upper seal edge portion, middle ring portion
It is sequentially connected with lower sealing edge portion；Wherein, the middle ring portion is a circular hollow reticulate body, and the circular hollow of the middle ring portion is netted
Body is formed by one or more carbon fiber rope is woven into alignment oblique relative to the central shaft of the middle ring portion.
2. crucible as described in claim 1, which is characterized in that the upper seal edge portion and lower sealing edge portion are annular solid, by one
Or the more carbon fiber ropes weave, the count of the upper seal edge portion and lower sealing edge portion, the braiding than middle ring portion is close
Degree is big.
3. crucible as described in claim 1, which is characterized in that it is the hollow reticulate body of a bowl-type to have the crucible crucible bottom of edge sealing, is used
One or more carbon fiber rope weaves.
4. crucible as claimed in claim 2, which is characterized in that the reticulate body of the middle ring portion is by one or more carbon fiber rope
It is aligned along the first direction relative to the inclined first angle；By one or more carbon fiber rope along relative to described
The second direction of inclined second angle is aligned；The second angle is identical as the first angle, and wherein described
First direction is with the second direction relative to described substantially symmetrical about its central axis.
5. crucible as claimed in claim 2, which is characterized in that each of the carbon fiber rope includes more carbon fiber yarns
Line, the center of rope are the carbon fibre thread for being parallel to rope axle center, are parallel to outside the carbon fibre thread in axle center and coat carbon fiber
Tie up woven tube.
6. crucible as described in claim 1, which is characterized in that the crucible bottom is the hollow reticulate body of a bowl-type, the crucible bottom
The hollow reticulate body of bowl-type is formed by weaving one or more carbon fiber rope.
7. crucible as claimed in claim 2, which is characterized in that the weaving manner is knitting or woven.
8. crucible as described in claim 1, which is characterized in that the surface at the crucible nation and crucible bottom is with pyrolytic carbon or pyrolysis stone
Ink or coat of silicon carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801400.8U CN207699722U (en) | 2017-12-21 | 2017-12-21 | A kind of painting crucible having edge sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801400.8U CN207699722U (en) | 2017-12-21 | 2017-12-21 | A kind of painting crucible having edge sealing |
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| Publication Number | Publication Date |
|---|---|
| CN207699722U true CN207699722U (en) | 2018-08-07 |
Family
ID=63027455
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| CN201721801400.8U Active CN207699722U (en) | 2017-12-21 | 2017-12-21 | A kind of painting crucible having edge sealing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964679A (en) * | 2017-12-21 | 2018-04-27 | 上海骐杰碳素材料有限公司 | A kind of painting crucible for having edge sealing and preparation method thereof |
-
2017
- 2017-12-21 CN CN201721801400.8U patent/CN207699722U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107964679A (en) * | 2017-12-21 | 2018-04-27 | 上海骐杰碳素材料有限公司 | A kind of painting crucible for having edge sealing and preparation method thereof |
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| GR01 | Patent grant | ||
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Address after: 201403 floor 5, building 11, No. 6055, Jinhai Road, Fengxian District, Shanghai Patentee after: Shanghai Qijie New Materials Co.,Ltd. Country or region after: China Address before: 200241 room 110, 64 Lane 95, Langhua Road, Langxia Town, Jinshan District, Shanghai Patentee before: Q-CARBON MATERIAL CO.,LTD. Country or region before: China |