CN203542799U - Four-annular-hole jet-spinning mold for cospinning - Google Patents
Four-annular-hole jet-spinning mold for cospinning Download PDFInfo
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- CN203542799U CN203542799U CN201320746289.2U CN201320746289U CN203542799U CN 203542799 U CN203542799 U CN 203542799U CN 201320746289 U CN201320746289 U CN 201320746289U CN 203542799 U CN203542799 U CN 203542799U
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Abstract
The utility model relates to a mold, in particular to a four-annular-hole jet-spinning mold for cospinning. The four-annular-hole jet-spinning mold for cospinning comprises a bottom sleeve, an upper spacer sleeve, a middle spacer sleeve and a lower spacer sleeve, wherein an outlet is formed in the bottom of the bottom sleeve, and the lower spacer sleeve, the middle spacer sleeve and the upper spacer sleeve are sequentially arranged inside the bottom sleeve. A spacer sleeve cover is arranged on the upper portion of the upper spacer sleeve, an inner-layer material hole communicated with the upper spacer sleeve is formed in the spacer sleeve cover, a middle-layer material hole and an inner gel bath material hole are formed in the two side walls of the upper spacer sleeve respectively, an outer-layer material hole is formed in the bottom sleeve, the inner-layer material hole, the middle-layer material hole, the outer-layer material hole and the inner gel bath material hole are all not communicated, and four channels are jointly formed above the outlet through the spacer sleeves and the bottom sleeve. Compared with the prior art, a three-layer composite ceramic micro-pipe can be manufactured in a one-step molded mode through the four-annular-hole jet-spinning mold, the four-annular-hole jet-spinning mold has the advantages of being easy to operate and low in cost, and the manufactured three-layer composite ceramic micro-pipe is natural in film boundary transition, large in interlayer binding force, reasonable in structure, not prone to being stripped and long in service life.
Description
Technical field
The utility model relates to a kind of mould, is specifically related to a kind of spray of the hole, Fourth Ring for co-spun yarn silk mould.
Background technology
At present, micro-tubular SOFC, still existing challenge aspect multilayer film interface compatibility and electric current collection research, has hindered its industry application development.First be multilayer film interface compatibility issue.At present MT-SOFC(micro-tubular solid oxidized fuel cell) mainly adopt that successively legal system is standby, as first prepared anode microtubule, then utilize impregnation sintering method in outside, to prepare successively anode functional layer, dense electrolyte film, deposition cathode layer etc.If want, obtain high cell output, current SOFC technology will comprise 5 layers of even more ceramic film.This requires very high to ceramic process technology, especially, in very thin micro-tubular structure, hold and accurately prepare the ceramic membrane of multilayer different chemical composition, different microcellular structure, different machinery and hot property, more than also difficulty of general fuel cell technology.
While preparing microtubule, carry out the mould of co-spun yarn generally take three annular distance moulds as main, can only a step prepare two-layer microtubule, remainder layer must adopt dipping successively to prepare and could obtain again.The problem one of this structure is its successively process complexity of impregnation sintering, during energy charge; The 2nd, sintering has infringement to structure repeatedly; Main, the rete border transition that successively preparation can cause different compositions suddenly, weak, the interface of interlayer adhesion easily produces defect or sneak into and in impurity, heat treatment or hot operation, be prone to delamination or interface impedance increases, and affected result of use.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: a kind of hole, Fourth Ring spray silk mould that a step co-spun yarn can be prepared three layers of microtubule that passes through is provided.
The utility model solves the technical scheme that its technical problem adopts:
The described spray of the hole, Fourth Ring for co-spun yarn silk mould, comprises end cover, also comprises spacer, middle spacer, lower spacer, and wherein, cover bottom, the end arranges outlet, and cover inside, the end is followed successively by lower spacer, middle spacer, upper spacer; Upper spacer top arranges spacer lid, and spacer covers offers the interior layered material hole being connected with upper spacer, and in the middle of arranging respectively on upper spacer two side, layered material hole and inner gel are bathed material hole, and the end puts outer layered material hole is set; Interior layered material hole, middle layered material hole, outer layered material hole are bathed material Kong Jun with inner gel and are not communicated with; Outlet top forms four passages altogether by spacer, end cover:
(1) between end cover and lower spacer, form outer layer channel, outer layer channel is connected with outer layered material hole;
(2) between lower spacer and middle spacer, form intermediate layer passage, intermediate layer passage is connected with middle layered material hole;
(3) in, between spacer and upper spacer, form internal layer passage, internal layer passage is connected with interior layered material hole;
(4) in the middle of upper spacer, be inner gel bath passage, inner gel is bathed passage and is connected with inner gel bath material hole.
Middle layered material hole and inner gel are bathed on material hole a logical mouth are set respectively, the setting party of logical mouth in the middle of layered material hole and the inner gel slip of bathing material hole add.
Operation principle and process:
By three kinds of ceramic materials with close thermal expansion and sintering character, (a kind of tenor is higher, has electric current collection effect; A kind of tenor is slightly low, makes anode functional layer; A kind of is electrolyte ceramics powder) be made into together respectively the slurry of three kinds of different compositions from polymeric binder (polysulfones, polyether sulfone PESf or polyimides), organic solvent (1-METHYLPYRROLIDONE NMP, dimethyl formamide) etc.; After vacuum outgas, by hole, Fourth Ring spray silk mould, certain outer depressing, clamp-on in outer coagulation bath, after solidifying, obtain three layers of compound microtubule base substrate.The size of microtubule, the thickness of every layer are by adjustings such as spinning head size and external pressures.Three layers of compound microtubule base substrate that obtain are placed 24-48h in water, to guarantee its Stability Analysis of Structures.Owing to using different inner gel to bathe and outer coagulation bath in inversion of phases process, make the inversion of phases speed difference of diverse location, obtain like this three layers of microtubule and have by the unsymmetric structure forming compared with compacted zone and porous layer.
The beneficial effect that the utility model has is:
Compared with prior art, adopt the utility model to prepare three layers of composite ceramics microtubule by one step forming, there is feature simple to operate, with low cost, three layers of composite ceramics microtubule rete border transition nature that make, interlayer adhesion is strong, rational in infrastructure, be difficult for peeling off long service life.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the I portion enlarged drawing of Fig. 1;
In figure: 1, interior layered material hole; 2, spacer lid; 3, upper spacer; 4, inner gel is bathed material hole; 5, end cover; 6, lower spacer; 7, middle spacer; 8, outlet; 9, outer layered material hole; 10, Tong Zui; 11, middle layered material hole; 12, outer layer channel; 13, intermediate layer passage; 14, internal layer passage; 15, inner gel is bathed passage.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1-2, the described spray of the hole, Fourth Ring for co-spun yarn silk mould, comprises end cover 5, upper spacer 3, middle spacer 7, lower spacer 6, and wherein, overlap 5 bottoms outlet 8 is set at the end, and overlap 5 inside and is followed successively by lower spacer 6, middle spacer 7, upper spacer 3 at the end; Upper spacer 3 tops arrange spacer lid 2, offer the interior layered material hole 1 being connected with upper spacer 3 on spacer lid 2, and in the middle of arranging respectively on upper spacer 3 two sides, layered material hole 11 and inner gel are bathed material hole 4, on end cover 5, outer layered material hole 9 are set; Interior layered material hole 1, middle layered material hole 11, outer layered material hole 9 are bathed material hole 4 with inner gel and are not all communicated with; Export 8 tops and form altogether four passages by spacer, end cover 5:
(1), form outer layer channel 12 between end cover 5 and lower spacer 6, outer layer channel 12 is connected with outer layered material hole 9;
(2), form intermediate layer passage 13 between lower spacer 6 and middle spacer 7, intermediate layer passage 13 is connected with middle layered material hole 11;
(3), form internal layer passage 14 between middle spacer 7 and upper spacer 3, internal layer passage 14 is connected with interior layered material hole 1;
(4), in the middle of upper spacer (3) for inner gel is bathed passage 15, inner gel is bathed passage 15 and is expected that with inner gel bath hole 4 is connected.
In addition, in order to add slip in mould more easily from material hole 11, intermediate layer and inner gel bath material hole 4, middle layered material hole 11 and inner gel are bathed on material hole 4 a logical mouth 10 are set respectively.
Below enumerate an Application Example that adopts the utility model to prepare three layers of composite ceramics microtubule:
(1) three layer of composite ceramics microtubule comprises cermet afflux layer ceramic material, anode functional layer ceramic material and dense electrolyte layer ceramic material:
Dense electrolyte layer ceramic material: adopt electrolyte powder, by nano-powder YSZ(20-30nm) and micro-powder YSZ(1-50 μ m) form, the mass ratio of nano-powder and micro-powder is 8/2;
Cermet afflux layer ceramic material: (micro-powder YSZ1-50 μ m) mixing and ball milling makes, and nickel oxide and electrolyte mass ratio are 8/2 for nickel oxide and electrolyte;
Anode functional layer ceramic material: (micro-powder YSZ1-50 μ m) mixing and ball milling makes, and nickel oxide and electrolyte mass ratio are 5/5 for nickel oxide and electrolyte.
(2) prepare casting solution:
Polyether sulfone is dissolved in 1-METHYLPYRROLIDONE, then the ceramic material that step (1) is made is dissolved in respectively above-mentioned solution and is prepared into corresponding three kinds of casting solutions:
Cermet afflux layer casting solution consists of: cermet afflux layer ceramic material, polyether sulfone, 1-METHYLPYRROLIDONE three mass ratio are 7.5:1:4.5.
Anode functional layer casting solution composition: anode functional layer ceramic material, polyether sulfone, 1-METHYLPYRROLIDONE three mass ratio are 4.5:1:4.5.
Dense electrolyte layer casting solution composition: dense electrolyte layer ceramic material, polyether sulfone, 1-METHYLPYRROLIDONE three mass ratio are 4:1:4.5.
(3) prepare three layers of compound microtubule base substrate: casting solution is imported in rustless steel container, after casting solution is vacuumized, adopt syringe pump under the pressure of 0.1MPa three kinds of casting solutions and water (inner gel bath) again, by hole, a utility model Fourth Ring spray silk mould carry out three-layer co-extruded go out to water (outer coagulation bath), soak 24h dry, stretching and get final product.Rate of extrusion is respectively: cermet afflux layer, 10mL/min; Anode functional layer, 1mL/min; Dense electrolyte layer 1mL/min.Inner gel is bathed, 14mL/min.
(4) three layers of compound microtubule blank sintering: three layers of compound microtubule base substrate are hung in high temperature furnace, be heated to 800 ℃ with the programming rate of 4 ℃/min, be incubated 1 hour with the organic matter except in striping.Then with the programming rate of 2 ℃/min, be heated to 1500 ℃, be incubated and within 4 hours, make its abundant sintering, finally with the rate of temperature fall of 2 ℃/min, drop to room temperature, make three layers of composite ceramics microtubule.
Three layers of composite ceramics microtubule interior metal pottery afflux layer, grading electrode functional layer and the outside dense electrolyte layer thickness of obtaining are respectively 210 μ m, 10 μ m and 10 μ m, microtubule external diameter 2.0mm ± 0.1mm, its cross section is pore structure distribution in gradient from the inside to the outside, innermost layer is macropore, intermediate layer is micropore, and skin is atresia.
Claims (2)
1. the spray of the hole, Fourth Ring for a co-spun yarn silk mould, comprise end cover (5), it is characterized in that: also comprise spacer (3), middle spacer (7), lower spacer (6), wherein, end cover (5) bottom arranges outlet (8), and cover (5) inside, the end is followed successively by lower spacer (6), middle spacer (7), upper spacer (3); Upper spacer (3) top arranges spacer lid (2), on spacer lid (2), offer the interior layered material hole (1) being connected with upper spacer (3), in the middle of arranging respectively on upper spacer (3) two side, layered material hole (11) and inner gel are bathed material hole (4), on end cover (5), outer layered material hole (9) are set; Interior layered material hole (1), middle layered material hole (11), outer layered material hole (9) are bathed material hole (4) with inner gel and are not all communicated with; Outlet (8) top forms four passages altogether by spacer, end cover (5):
Between end cover (5) and lower spacer (6), form outer layer channel (12), outer layer channel (12) is connected with outer layered material hole (9);
Between lower spacer (6) and middle spacer (7), form intermediate layer passage (13), intermediate layer passage (13) is connected with middle layered material hole (11);
Between middle spacer (7) and upper spacer (3), form internal layer passage (14), internal layer passage (14) is connected with interior layered material hole (1);
In the middle of upper spacer (3), for inner gel is bathed passage (15), inner gel is bathed passage (15) and is bathed and expect that hole (4) is connected with inner gel.
2. the spray of the hole, Fourth Ring for co-spun yarn silk mould according to claim 1, is characterized in that: middle layered material hole (11) and inner gel are bathed on material hole (4) a logical mouth (10) is set respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746289.2U CN203542799U (en) | 2013-11-22 | 2013-11-22 | Four-annular-hole jet-spinning mold for cospinning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746289.2U CN203542799U (en) | 2013-11-22 | 2013-11-22 | Four-annular-hole jet-spinning mold for cospinning |
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| CN203542799U true CN203542799U (en) | 2014-04-16 |
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| CN201320746289.2U Withdrawn - After Issue CN203542799U (en) | 2013-11-22 | 2013-11-22 | Four-annular-hole jet-spinning mold for cospinning |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600409A (en) * | 2013-11-22 | 2014-02-26 | 山东理工大学 | Four-ring-hole spinneret mold for co-spun yarns |
| CN109534818A (en) * | 2017-09-22 | 2019-03-29 | 萍乡市普天高科实业有限公司 | Porous ceramics film preparation mold and method |
-
2013
- 2013-11-22 CN CN201320746289.2U patent/CN203542799U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600409A (en) * | 2013-11-22 | 2014-02-26 | 山东理工大学 | Four-ring-hole spinneret mold for co-spun yarns |
| CN103600409B (en) * | 2013-11-22 | 2015-12-30 | 山东理工大学 | For the Four-ring-hole spinneret mold of co-spun yarn |
| CN109534818A (en) * | 2017-09-22 | 2019-03-29 | 萍乡市普天高科实业有限公司 | Porous ceramics film preparation mold and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20151230 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |