CN106994759A - A kind of ceramic impeller gel casting forming mould and its manufacture method - Google Patents
A kind of ceramic impeller gel casting forming mould and its manufacture method Download PDFInfo
- Publication number
- CN106994759A CN106994759A CN201710235957.8A CN201710235957A CN106994759A CN 106994759 A CN106994759 A CN 106994759A CN 201710235957 A CN201710235957 A CN 201710235957A CN 106994759 A CN106994759 A CN 106994759A
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- Prior art keywords
- core rod
- ring
- mould
- impeller
- cavity
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/76—Cores
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a kind of ceramic impeller gel casting forming mould and its manufacture method, a series of inorganic moulds, organic material mould and organo-mineral complexing material mould that adhesion is not susceptible to ceramic slurry can be produced, the present invention can avoid base substrate and external mold surface of internal cavity and core surface adhesion, so as to ensure that the presentation quality of base substrate, and be conducive to the removing of core rod, mold weight and production cost are also reduced simultaneously, production efficiency is improved；The base substrate demoulding is more convenient and flexible, and presentation quality is good after the base substrate demoulding, base in outer membrane to package unit while playing a supportive role, it is also prevented from leakage outflow, and it is convenient to carry and be inverted, also it is beneficial to realize level balance when pouring, the gel injection-moulding ceramic impeller mould that the composite can be widely applied to various materials is poured.
Description
Technical field
The invention belongs to technology of die manufacturing field, and in particular to a kind of ceramic impeller gel casting forming mould and its
Manufacture method.
Background technology
Chemical industry, oil and nuclear power station are frequently necessary to that high temperature, the alkaline solution pump of strong acid are entered or pumped out, in the urgent need to resistance to height
Temperature, the anti abrasive vane pump of strong acid-base resistance burn into.Pressureless sintering carborundum is a kind of good structural ceramics, with hardness it is high,
Thermal conductivity is high, thermal shock performance is high, the features such as wear-resistant, resistance to chemical corrosion is good, is a kind of ideal corrosion-resistant, wear-resisting
Damage, high temperature resistant centrifugal pump impeller manufacture material.But it is difficult to be machined out after ceramic material sintering, how prepares and meet performance
It is required that, complex-shaped accurate large scale impeller of pump, be always a problem of industrial quarters.
Gel casting forming is a kind of near-net-shape technology received much attention in recent years, and the technology is by Oak Ridge state of the U.S.
A kind of colloidal state rapid shaping technique that family invents in laboratory in early 1990s, by traditional powder moulding process with polymerizeing
Thing chemistry combines, and the polymerisation feature of high polymer monomer is applied in powder forming field.Its technical principle is profit
With organic monomer while three-dimensional netted polymer is aggregated into, the particle in finely dispersed powder suspension is wrapped up,
So as to be allowed to in-situ solidifying, the base substrate with polymer substance composite construction with powder is formed.The technique has required equipment letter
It is single, molding blank composition is uniform, defect is few, be unlikely to deform, near-net-shape complicated shape structural member and practical etc. prominent
Go out advantage, by domestic and international academia and the extensive concern of industrial quarters.At present, Gelcasting Technique has been widely used in
Al2O3、ZrO2、SiC、AlN、Si3N4In production system Deng oxide or the high technology ceramics structural member of non-oxidized substance, with this
Technology is updated, and gel injection molding and forming technology also becomes better and approaching perfection day by day and by a kind of important shaping side as ceramic impeller
Method.But during gel casting forming impeller, it is necessary to use mould carrying ceramic slurry, and presently used mold materials
Usually Metal Substrate material.Impeller mold is made using metal material, there is metal surface easily by acid-alkali medium in slurry
Corrosion, pulp gel posterior lobe wheel base substrate easily sticks together with metal surface, causes the demoulding of impeller base substrate difficult, outward appearance matter
Amount is poor, yield rate reduction.This patent seeks out a kind of manufacture method of new ceramic impeller gel casting forming mould, utilizes
This method can produce a series of inorganic moulds that adhesion is not susceptible to ceramic slurry, organic material mould and have
Machine-inorganic compounding material mould, such as gypsum, silicate, paraffin, epoxy resin, polyethylene, polytetrafluoroethylene (PTFE), nylon.It is reasonable
By believing, above-mentioned mold materials system can not only be greatly promoted the development and production of ceramic impeller, also can power-assisted in gel note
Mold technique produces other kinds of ceramic structures.
The content of the invention
In order to solve the above problems, the present invention provides a kind of manufacture method of ceramic impeller gel casting forming mould,
Methods described uses iron-based material as die main body, smears anti-stick coating on the surface of outer mold cavity and core surface, passes through
Upper modular ring, middle ring, lower modular ring and base constitute the external mold of four fraction structures, and by its with core rod and core rod stator combination one
Rise and use；
Further, it the described method comprises the following steps：
(1) assembling external mold, core rod stator and core rod, smearing thickness is θ anti-stick coating, wherein 10 μm≤θ≤1000 μm；
(2) mould therefor material is configured to the liquid state with certain fluidity, and be poured slowly into by core rod side, middle ring
And in the upper cavity of upper modular ring composition；
(3) liquid paraffin is converted into after the solid paraffin with some strength in upper cavity, is inverted package unit, is then removed bottom
Seat；
(4) the remaining liquid shape material described in step (2) is poured into and be made up of down core rod front, middle ring and lower modular ring
In die cavity；
(5) liquid is converted into after the solid with some strength in lower mode cavity, is gently prized and is respectively connect with screwdriver or other prys
At seam, by the top and the bottom of poured mould, ibid modular ring, lower modular ring, middle ring separate, and take out core rod, produce various materials
Material ceramic impeller gel casting forming mould；
Further, a kind of ceramic impeller gel casting forming mould, the mould include outer membrane, core rod stator, core rod and
Anti-stick coating, the outer membrane includes upper modular ring, middle ring, lower modular ring and base；
Further, described core rod is the impeller core rod to be poured, and described impeller core rod is mounted in outer mold cavity, by mould
Core stator schedules outer membrane inner chamber centre；
Further, described outer membrane inner chamber includes upper cavity and lower mode cavity, wherein the upper cavity by upper modular ring, middle ring with
And core rod side is constituted, the lower mode cavity is made up of base, lower modular ring, middle ring and core rod front；
Further, the anti-stick coating is applied on the surface of impeller core rod, core rod stator and outer membrane inner chamber respectively, described anti-
Adhesive coating layer is the high polymer material with each diversity of water, and thickness is θ, 10 μm≤θ≤1000 μm；
Further, the middle ring thickness is identical with impeller thickness, the segmentation sealing ring on composition impeller positive side two sides, and by
Anti-stick coating is used as sealant；
Further, described external mold and core rod stator are made up of iron-based material, and described impeller core rod is made up of aluminum material.
Beneficial effects of the present invention are as follows：
（1）Using with easy to process, cost it is low, easy to use, can easily be processed into needed for component iron-based material
Expect the die main body as the present invention；And anti-stick coating is smeared on the surface of outer mold cavity and core surface, in the demoulding, it can keep away
Exempt from base substrate and external mold surface of internal cavity and core surface adhesion, so as to ensure that the presentation quality of base substrate, and be conducive to core rod
Removing, while also reducing mold weight and production cost, improves production efficiency；
（2）One external mold that can conveniently take apart, combine, the four fractions knot are constituted using upper modular ring, middle ring, lower modular ring and base
The external mold of structure is used together with core rod and core rod stator combination so that the base substrate demoulding is more convenient and flexible, and after the base substrate demoulding
Presentation quality is good；
（3）Base in outer membrane is also prevented from leakage outflow, and conveniently remove while being played a supportive role to package unit
Fortune and inversion, also beneficial to the level balance realized when pouring；
（4）The gel injection-moulding ceramic impeller mould that the composite can be widely applied to various materials is poured.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of ceramic impeller gel casting forming mould manufacturing method of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is explained in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.On the contrary, the present invention cover it is any be defined by the claims the present invention spirit and scope on do
Replacement, modification, equivalent method and scheme.Further, in order that the public has a better understanding to the present invention, below to this
It is detailed to describe some specific detail sections in the detailed description of invention.It is thin without these for a person skilled in the art
The description of section part can also understand the present invention completely.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as a limitation of the invention.
Below most preferred embodiment is enumerated for the present invention：
As shown in figure 1, the present invention provides a kind of manufacture method of ceramic impeller gel casting forming mould, methods described is used
Iron-based material smears anti-stick coating on the surface of outer mold cavity and core surface, passes through upper modular ring, centre as die main body
Ring, lower modular ring and base constitute the external mold of four fraction structures, and it is used together with core rod and core rod stator combination.
It the described method comprises the following steps：
(1) assembling external mold, core rod stator and core rod, smearing thickness is θ anti-stick coating, wherein 10 μm≤θ≤1000 μm；
(2) mould therefor material is configured to the liquid state with certain fluidity, and be poured slowly into by core rod side, middle ring
And in the upper cavity of upper modular ring composition；
(3) liquid paraffin is converted into after the solid paraffin with some strength in upper cavity, is inverted package unit, is then removed bottom
Seat；
(4) the remaining liquid shape material described in step (2) is poured into and be made up of down core rod front, middle ring and lower modular ring
In die cavity；
(5) liquid is converted into after the solid with some strength in lower mode cavity, is gently prized and is respectively connect with screwdriver or other prys
At seam, by the top and the bottom of poured mould, ibid modular ring, lower modular ring, middle ring separate, and take out core rod, produce various materials
Material ceramic impeller gel casting forming mould, described core rod is the impeller core rod to be poured, described impeller
Core rod is mounted in outer mold cavity, and outer membrane inner chamber centre is scheduled by core rod stator, and described outer membrane inner chamber includes upper cavity with
Die cavity, wherein the upper cavity is made up of upper modular ring, middle ring and core rod side, the lower mode cavity by base, lower modular ring, in
Between ring and core rod front composition, the anti-stick coating is applied on the surface of impeller core rod, core rod stator and outer membrane inner chamber respectively,
The anti-stick coating is the high polymer material with each diversity of water, and thickness is θ, and 10 μm≤θ≤1000 μm, the middle ring is thick
Degree is identical with impeller thickness, constitutes the segmentation sealing ring on impeller positive side two sides, and by anti-stick coating as sealant, it is described
External mold and core rod stator are made up of iron-based material, and described impeller core rod is made up of aluminum material.
Embodiment 1
Illustrate embodiment 1 with reference to Fig. 1, a whole set of invention device is made up of outer membrane 1, core rod stator 2, core rod 3 and anti-stick coating 4, its
Middle outer membrane 1 includes upper modular ring 1-1, middle ring 1-2, lower modular ring 1-3 and base 1-4.Described core rod is what is poured
Impeller core rod 3.Described impeller core rod 3 is mounted in outer mold cavity 5, and the centre of outer membrane inner chamber 5 is scheduled by core rod stator.Described
5 points of outer membrane inner chamber is upper cavity 5-1 and lower mode cavity 5-2, and wherein upper cavity 5-1 is by upper modular ring 1-1, centre ring 1-2 and core rod
Side 3-2 is constituted, and lower mode cavity 5-2 is by base 1-4, lower modular ring 1-3, centre ring 1-2 and core rod front 3-1（Contain blade one side）
Composition.Described anti-stick coating is applied on the surface of impeller core rod 3, core rod stator 2 and outer membrane inner chamber 5 respectively, described anti-sticking
Coating 4 is the high polymer material with each diversity of water, and thickness θ is 200 μm.The lower modular ring 1-3 seals good with base 1-4
Good, lower modular ring 1-3 is with middle ring 1-2 good seals, and middle ring 1-2 ibid modular ring 1-1 good seals, middle ring 1-2 thickness is same
Impeller thickness is identical, constitutes the segmentation sealing ring on impeller positive side two sides, and is used as sealant by anti-stick coating.Described external mold
1 and core rod stator 2 be made up of iron-based material, described impeller core rod 3 is made up of aluminum material.
Outer membrane thinnest part is not less than 5mm in the present embodiment.
Specific implementation step is as follows：
（1）External mold 1, core rod stator 2 and core rod 3 are assembled according to assembling figure shown in Fig. 1, and smearing thickness is anti-for 200 μm
Adhesive coating layer.
（2）By heating paraffin to the liquid state with certain fluidity, and it is poured slowly into by core rod side 3-2, middle ring
In the upper cavity 5-1 of 1-2 and upper modular ring 1-1 compositions.
（3）Liquid paraffin is converted into after the solid paraffin with some strength in upper cavity 5-1, is inverted package unit, so
After remove base 1-4.
（4）By step（2）Described in remaining liquid paraffin pour into by core rod front 3-1, centre ring 1-2 and lower modular ring
In the lower mode cavity 5-2 of 1-3 compositions.
（5）Liquid is converted into after the solid paraffin with some strength in lower mode cavity 5-2, light with screwdriver or other prys
Each seam crossing is gently prized, ibid modular ring 1-1, lower modular ring 1-3, middle ring 1-2 are separated, and taken by the top and the bottom of poured mould
Go out core rod 3, produce the ceramic impeller gel casting forming mould of paraffin material.
Embodiment 2
The present embodiment and the difference of embodiment 1 are that the smearing thickness of anti-stick coating is 10 μm, and outer membrane thinnest part is not less than
2mm, pours material selection gypsum slurry.Result of implementation is the ceramic impeller gel casting forming mould for having obtained gypsum material
Tool.
Embodiment 3
The present embodiment and the difference of embodiment 1 are that the smearing thickness of anti-stick coating is 100 μm, and outer membrane thinnest part is not less than
7mm, pours material selection epoxy resin.Result of implementation is the ceramic impeller gel casting forming for having obtained epoxy resin material
Use mould.
Embodiment 4
The present embodiment and the difference of embodiment 1 are that the smearing thickness of anti-stick coating is 300 μm, and outer membrane thinnest part is not less than
6mm, pours material selection portland cement.Result of implementation is the ceramic impeller gel injection-moulding for having obtained portland cement material
Mold for forming.
Embodiment 5
The present embodiment and the difference of embodiment 1 are that the smearing thickness of anti-stick coating is 400 μm, and outer membrane thinnest part is not less than
4mm, pours material selection polyethylene.Result of implementation is the ceramic impeller gel casting forming mould for having obtained polyethylene material
Tool.
Embodiment 6
The present embodiment and the difference of embodiment 1 are that the smearing thickness of anti-stick coating is 500 μm, and outer membrane thinnest part is not less than
3mm, pours material selection polytetrafluoroethylene (PTFE).Result of implementation is the ceramic impeller gel injection-moulding for having obtained polytetrafluoroethylene (PTFE) material
Mold for forming.
Embodiment 7
The present embodiment and the difference of embodiment 1 are that the smearing thickness of anti-stick coating is 550 μm, and outer membrane thinnest part is not less than
8mm, pours material selection nylon.Result of implementation is the ceramic impeller gel casting forming mould for having obtained nylon material.
One kind of embodiment described above, simply more preferably embodiment of the invention, those skilled in the art
The usual variations and alternatives that member is carried out in the range of technical solution of the present invention all should be comprising within the scope of the present invention.
Claims (8)
1. a kind of manufacture method of ceramic impeller gel casting forming mould, it is characterised in that methods described uses iron-based material
Material smears anti-stick coating as die main body on the surface of outer mold cavity and core surface, passes through upper modular ring, middle ring, lower mould
Ring and base constitute the external mold of four fraction structures, and it is used together with core rod and core rod stator combination.
2. manufacture method according to claim 1, it is characterised in that the described method comprises the following steps：
(1) assembling external mold, core rod stator and core rod, smearing thickness is θ anti-stick coating, wherein 10 μm≤θ≤1000 μm；
(2) mould therefor material is configured to the liquid state with certain fluidity, and be poured slowly into by core rod side, middle ring
And in the upper cavity of upper modular ring composition；
(3) liquid paraffin is converted into after the solid paraffin with some strength in upper cavity, is inverted package unit, is then removed bottom
Seat；
(4) the remaining liquid shape material described in step (2) is poured into and be made up of down core rod front, middle ring and lower modular ring
In die cavity；
(5) liquid is converted into after the solid with some strength in lower mode cavity, is gently prized and is respectively connect with screwdriver or other prys
At seam, by the top and the bottom of poured mould, ibid modular ring, lower modular ring, middle ring separate, and take out core rod, produce various materials
Material ceramic impeller gel casting forming mould.
3. a kind of ceramic impeller gel casting forming mould, based on the manufacture method described in one of the claims 1-2, its
Be characterised by, the mould includes outer membrane, core rod stator, core rod and anti-stick coating, the outer membrane by upper modular ring, middle ring, under
Modular ring and base composition.
4. mould according to claim 3, it is characterised in that described core rod is the impeller core rod to be poured, described
Impeller core rod be mounted in outer mold cavity in, by core rod stator schedule outer membrane inner chamber centre.
5. mould according to claim 4, it is characterised in that described outer membrane inner chamber includes upper cavity and lower mode cavity, its
Described in upper cavity be made up of upper modular ring, middle ring and core rod side, the lower mode cavity by base, lower modular ring, middle ring and
Core rod front composition.
6. mould according to claim 5, it is characterised in that the anti-stick coating is applied to impeller core rod, core rod respectively
On the surface of stator and outer membrane inner chamber, the anti-stick coating is the high polymer material with each diversity of water, and thickness is θ, 10 μm
≤θ≤1000μm。
7. mould according to claim 6, it is characterised in that the middle ring thickness is identical with impeller thickness, constitutes leaf
The segmentation sealing ring on positive side two sides is taken turns, and sealant is used as by anti-stick coating.
8. mould according to claim 7, it is characterised in that described external mold and core rod stator is made up of iron-based material,
Described impeller core rod is made up of aluminum material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235957.8A CN106994759A (en) | 2017-04-12 | 2017-04-12 | A kind of ceramic impeller gel casting forming mould and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235957.8A CN106994759A (en) | 2017-04-12 | 2017-04-12 | A kind of ceramic impeller gel casting forming mould and its manufacture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106994759A true CN106994759A (en) | 2017-08-01 |
Family
ID=59433971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710235957.8A Pending CN106994759A (en) | 2017-04-12 | 2017-04-12 | A kind of ceramic impeller gel casting forming mould and its manufacture method |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274610A (en) * | 2018-01-30 | 2018-07-13 | 北京航大新材科技有限公司 | A kind of mold suitable for water base pulp gel injection moulding technique |
| CN115534055A (en) * | 2022-11-28 | 2022-12-30 | 山东硅元新型材料股份有限公司 | Gel injection molding mold and process for preparing aluminum oxide double-hole guide rail green body |
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| CN108274610A (en) * | 2018-01-30 | 2018-07-13 | 北京航大新材科技有限公司 | A kind of mold suitable for water base pulp gel injection moulding technique |
| CN115534055A (en) * | 2022-11-28 | 2022-12-30 | 山东硅元新型材料股份有限公司 | Gel injection molding mold and process for preparing aluminum oxide double-hole guide rail green body |
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