CN108275958A - A kind of water solubility evaporative pattern core, preparation method and application - Google Patents
A kind of water solubility evaporative pattern core, preparation method and application Download PDFInfo
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- CN108275958A CN108275958A CN201810132414.8A CN201810132414A CN108275958A CN 108275958 A CN108275958 A CN 108275958A CN 201810132414 A CN201810132414 A CN 201810132414A CN 108275958 A CN108275958 A CN 108275958A
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- evaporative pattern
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/106—Vented or reinforced cores
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Producing Shaped Articles From Materials (AREA)
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Abstract
The present invention relates to technical field of material, specifically disclose a kind of preparation method, water solubility evaporative pattern core and the application of water-soluble evaporative pattern core.The preparation method of water-soluble evaporative pattern core of the present invention includes：S1, gypsum, magnesium sulfate, water and ceramic powders are mixed in proportion, stirs evenly, obtains mixture slurry；S2, mixture slurry is poured into the mold containing built-in fitting, is taken out after solidification, dried, obtain the water-soluble evaporative pattern core.The water-soluble evaporative pattern core that the present invention is prepared can be directly used for Gel-casting process and prepare biscuit green body or prepare biscuit green body for other water base colloidal shaping methods.
Description
Technical field
The present invention relates to technical field of material, more particularly to a kind of preparation method of water-soluble evaporative pattern core, water
Dissolubility evaporative pattern core and application.
Background technology
Gel injection-moulding is one of state-of-the-art shaping method of ceramics, is answered because of near-net-shape, suitable for manufacture large scale
Miscellaneous shape and structure workpiece is not necessarily to the advantages that large special equipment, has been widely used in the preparation of various engineering ceramics.Gel
The process of casting is to inject ceramic slurry in mold, removes mold after pulp gel cures and generates ceramic body,
Green body can be obtained the ceramic component of required structure after drying, degreasing.
It is limited to drying process, the component thickness that gel injection-moulding can be prepared is smaller, and otherwise drying process, which easy tos produce, splits
Line, therefore gel casting forming is commonly used for preparing thin-wall workpiece.The mold used during gel casting forming at present still with
Based on metal die, when demoulding, is removed mold by mechanical force.Metal die generally takes design pattern draft, coating demoulding
The method of agent reduces the difficulty of demoulding, but still there is comparable active force in when mold removes between green body.And green body is strong at this time
It spends relatively low, is easily destroyed by external force, when especially mold cores demould, the co-acting force bigger between green body.Therefore it needs
There are a kind of mold materials of the demoulding without external force, to reduce the risk that gel injection moulding blank demoulding destroys.
Soluble core material can remove active force of the core mold dismounting to green body from, and can manufacture complex-shaped surface mould
Parts.Current main soluble core mold has gypsum core, salt core, urea core, ceramic core, polyethylene glycol core etc.,
Applied in the moulding process such as various metal castings.But gel injection-moulding is molded for water-based slurry fluidised form, existing soluble disappearance
Model core, which is directly used in gel casting forming then, can absorb the water in gel-casting slurry or the salt dissolving in evaporative pattern core
Into gel-casting slurry, both of which can make slurry rheology performance change, and forming process failure or molding green body is made to have
Major defect and can not use.Further more, existing evaporative pattern core is difficult to directly process and assemble, so being difficult to be fabricated to high-precision
Mold, also limit its application range.
Invention content
It is easily destroyed green body for the demoulding of gel injection-moulding metal die, existing solubility evaporative pattern core can not be applied to solidifying
The technical issues of glue injection molding, the present invention use following technical scheme：
On the one hand, the present invention provides a kind of preparation method of water-soluble evaporative pattern core, and the preparation method includes step：
S1, gypsum, magnesium sulfate, water and ceramic powders are mixed in proportion, stirs evenly, obtains mixture slurry；S2, by the mixing slurry
Body pours into the mold containing built-in fitting, is taken out after solidification, drying, obtains the water-soluble evaporative pattern core.
In some embodiments, the preparation method further includes：It designs and manufactures the water-soluble lost pattern in-core
Built-in fitting；The mold of design and the manufacture cast water-soluble evaporative pattern core；The built-in fitting is set in the mould.
In some embodiments, the built-in fitting is metal embedded part, and the mold is metal die.
In some embodiments, the step S1 includes mixing gypsum, magnesium sulfate and water in proportion, stirs evenly, obtains
To gypsum slurry；Ceramic powders are added into the gypsum slurry again, stir evenly, obtain mixture slurry.
In some embodiments, the ceramic powders and the volume ratio of the gypsum slurry are not more than 0.8：1.
In some embodiments, the mass ratio of the gypsum and the magnesium sulfate is (2-6)：1；The gypsum and the sulphur
The quality sum of sour magnesium, the mass ratio with the gypsum are (0.5-1)：1.
In some embodiments, the ceramic powders in silica, aluminium oxide, silicon carbide or silicon nitride at least one
Kind；The d50 of the ceramic powders is less than 30 μm.
On the other hand, the present invention provides a kind of water-soluble evaporative pattern core, and the water solubility evaporative pattern core passes through above-mentioned
Preparation method is made.
Yet another aspect, the present invention provide a kind of application of water-soluble evaporative pattern core, the water solubility evaporative pattern core
Biscuit is prepared for gel casting forming or water base colloidal shaping method prepares biscuit.
In some embodiments, method of the water solubility evaporative pattern core for gel casting forming includes step：
S11, alcohol-soluble dense protective layer is coated on the water-soluble evaporative pattern core；By the water-soluble evaporative pattern core dress after coating
It is fitted on mould, assembling obtains gel injection-moulding mold；S12, gel-casting slurry is injected in the gel injection-moulding mold, by water
The water-soluble lost pattern in-core of built-in fitting injection that stream passes through, keeps water-soluble evaporative pattern core defeated and dispersed；Built-in fitting is taken out, is completed de-
Mould obtains gel injection-moulding biscuit green body.
In some embodiments, the thickness of the alcohol-soluble dense protective layer is less than 0.1mm.
In some embodiments, when flow passes through built-in fitting, the hydraulic pressure of generation is not more than 5KPa.
The beneficial effects of the present invention are：By using gypsum and magnesium sulfate as curing agent, using ceramic powders as aggregate,
Using metalwork as built-in fitting, a kind of soluble plasters evaporative pattern core is made, can be directly used for gel casting forming and prepare element
Base green body, or prepare biscuit green body for other water base colloidal shaping methods.The soluble evaporative pattern core of the present invention is for coagulating
The water in gel-casting slurry will not be absorbed when glue casting, and the salt in evaporative pattern core will not be made to be dissolved into gel note
In mould slurry, more slurry rheology performance will not be made to change, can successfully realize gel casting forming.
Description of the drawings
Fig. 1 shows that water-soluble evaporative pattern core according to an embodiment of the invention prepares schematic diagram.
1, the mold 2 containing built-in fitting, built-in fitting 3, water-soluble evaporative pattern core
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with attached drawing and specific implementation
Example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only explaining this hair
It is bright, but not to limit the present invention.
Show that water-soluble evaporative pattern core according to an embodiment of the invention carries out gel casting forming referring initially to Fig. 1
Schematic diagram.
The present invention provides a kind of preparation method of water-soluble evaporative pattern core, and preparation method includes step：S1, by gypsum,
Magnesium sulfate, water and ceramic powders mix in proportion, stir evenly, and obtain mixture slurry；S2, by the mixture slurry pour into containing
It in the mold of built-in fitting, is taken out after solidification, dries, obtain water-soluble evaporative pattern core.
Specifically, preparation method includes：The built-in fitting 3 for designing and manufacturing water-soluble lost pattern in-core, designs and manufactures
Mould (not shown) for assembling the water-soluble evaporative pattern core, design and the water-soluble evaporative pattern core of manufacture cast
Mold 2, built-in fitting 3 is set in the mold 2, and mold 2 is preferably metal die, and built-in fitting 3 is preferably metal embedded part, pre-buried
In the water-soluble evaporative pattern core of part embedment of part 3, the part for not being embedded to water-soluble evaporative pattern core is used for and mould assembly.
Built-in fitting 3 and mould (not shown) have higher assembly precision, to ensure final water-soluble evaporative pattern core obtained
Scheduled position can be accurately assembled to.In preferred embodiment, built-in fitting 3 and mould (not shown) assembly precision are answered
Less than the 1/5 of final water-soluble evaporative pattern core precision obtained.
Gypsum, magnesium sulfate, water and ceramic powders are mixed in proportion, are stirred evenly, mixture slurry is obtained；Specifically, stone
Cream is medical gypsum or the higher gypsum of purity, and magnesium sulfate is pure or higher purity the magnesium sulfate powder of chemistry, and water is tap water
Or deionized water etc..In preferred embodiment, the mass ratio of gypsum and magnesium sulfate is (2-6)：1；Gypsum and magnesium sulfate
Quality sum, be (0.5-1) with the mass ratio of gypsum：1, mass ratio preferred in this way is more easily manufactured mobility and preferably starches
Body, and there is the intensity that can be demoulded after solidification, it is defeated and dispersed to ensure that water-soluble evaporative pattern core chance flow is easy after the completion of gel injection-moulding.
In preferred embodiment, gypsum, magnesium sulfate and water are mixed in proportion, stirred evenly, gypsum slurry is obtained；Again
Ceramic powders are added into gypsum slurry, stir evenly, obtain mixture slurry, ceramic powders can be made to be easy to disperse in slurry
Uniformly.In preferred embodiment, ceramic powders are selected from least one of silica, aluminium oxide, silicon carbide or silicon nitride, no
Influence the solidification of slurry；For the d50 of ceramic powders less than 30 μm, the volume ratio of ceramic powders and gypsum slurry is not more than 0.8：1, it can
It is smooth with the water-soluble lost pattern wicking surface after ensureing to process, while ceramic particle should not fall off, prevent mixture slurry
The reduction of mobility reduces hardening time.The addition of ceramic powders can reinforce the intensity for obtaining water-soluble evaporative pattern core
And toughness, ensure not to be destroyed when the processing of later stage water solubility evaporative pattern core；Meanwhile ceramic powders occupy water-soluble lost pattern
A part of volume of core, and then the dosage of curing agent is reduced, reduce environmental pollution；In addition, the ceramic powders later stage can also recycle again
It utilizes, reduces cost.
Mixture slurry is poured into the mold containing built-in fitting, hardening time at least 30min ensures it with some strength
Afterwards, it is removed from the molds, dries, obtain water-soluble evaporative pattern core 3.
The present invention provides a kind of water-soluble evaporative pattern core, is made by above-mentioned preparation method.
The present invention also provides a kind of application of water-soluble evaporative pattern core, water-soluble evaporative pattern core for gel injection-moulding at
Type prepares biscuit green body or water base colloidal shaping method prepares biscuit green body.Water-soluble evaporative pattern core is used for gel casting forming
Method include step：S11, alcohol-soluble dense protective layer is coated on water-soluble evaporative pattern core；By the water solubility after coating
Evaporative pattern core is assembled on mould, and assembling obtains gel injection-moulding mold；S12, gel-casting slurry is injected into gel injection-moulding mould
In tool, by flow by the water-soluble lost pattern in-core of built-in fitting injection, keep water-soluble evaporative pattern core defeated and dispersed；It takes out pre-buried
Part completes demoulding, obtains gel injection-moulding biscuit green body.
Specifically, after water-soluble evaporative pattern core 3 is made in preparation method through the invention, it, will be water-soluble on lathe
Property evaporative pattern core 3 is worked into the size of needs.Again alcohol-soluble densification is coated on water-soluble evaporative pattern core 3 after processing to protect
The thickness of sheath, alcohol-soluble dense protective layer is less than 0.1mm, can preferably ensure the size essence of water-soluble evaporative pattern core
Degree.Specific painting method is that organic matter is dissolved in ethyl alcohol, organic solution is made, then organic solution is brushed to processing
On water-soluble evaporative pattern core 3 afterwards, organic matter film is formed after organic solution drying；Polyvinyl alcohol contracting fourth can be used in organic matter
Aldehyde PVB, alcohol-soluble polyurethane etc.；When organic matter uses PVB, the molecular weight of PVB is preferably 30000-45000, further preferably
It is 40000, finally obtained organic solution concentration is preferably 15wt%.By on water-soluble evaporative pattern core after processing
Alcohol-soluble dense protective layer is coated, on the one hand can be completely separated by water-soluble evaporative pattern core and gel-casting slurry, ensure
Water in gel-casting slurry is not sucked away；On the other hand the finish of water-soluble lost pattern wicking surface can also be improved, in turn
Improve the surface quality of gel injection moulding blank.Coated alcohol-soluble dense protective layer is noted in gel on water-soluble evaporative pattern core
It is dissolvable in water in dry liquid in the liquid drying in die body later stage.
By gel-casting slurry inject gel injection-moulding mold in, by flow by built-in fitting 2 inject water-soluble evaporative pattern
In core 3, keep water-soluble evaporative pattern core 3 defeated and dispersed；Built-in fitting 2 is taken out, demoulding is completed, removes metal die 1, obtains gel note
Mould biscuit green body.
Specifically, gel-casting slurry can be the gel-casting slurry of the ceramics such as silicon carbide, silicon nitride, aluminium oxide.It is pre-buried
The channel of flowing water is equipped in part 2, to be passed through flow when needing water-soluble evaporative pattern core defeated and dispersed.Specifically, built-in fitting 2 buries
It is connected with hose in the part of lost pattern in-core, the other parts for extending to evaporative pattern of hose other end, the water in built-in fitting 2
Stream can reach each position of lost pattern in-core by hose, improve the defeated and dispersed rate of evaporative pattern core, and pre-buried taking out
Hose will not destroy green body when part.In specific implementation mode, when flow is by built-in fitting 2, the hydraulic pressure of generation is not more than
5Kpa, after preferably ensureing that water-soluble evaporative pattern core 3 is defeated and dispersed, hydraulic pressure not will produce gel injection moulding blank destruction.It is water-soluble
After evaporative pattern core 3 is defeated and dispersed, the ceramic powders of outflow can further decrease entire preparation method with recycling
Cost.
The water-soluble evaporative pattern core of the present invention is used for gel casting forming, while providing a kind of gel casting forming preparation
The method of biscuit of ceramics, specifically includes step：
S1, gypsum, magnesium sulfate, water and ceramic powders are mixed in proportion, stirs evenly, obtains mixture slurry；S2, by institute
It states mixture slurry to pour into the mold containing built-in fitting, be taken out after solidification, dried, obtain the water-soluble evaporative pattern core；
S11, alcohol-soluble dense protective layer is coated on the water-soluble evaporative pattern core；By the water-soluble evaporative pattern core dress after coating
It is fitted on mould, assembling obtains gel injection-moulding mold；S12, gel-casting slurry is injected in the gel injection-moulding mold, by water
The water-soluble lost pattern in-core of built-in fitting injection that stream passes through, keeps water-soluble evaporative pattern core defeated and dispersed；Built-in fitting is taken out, is completed de-
Mould obtains gel injection-moulding biscuit green body.
Contain built-in fitting in the water-soluble evaporative pattern core of the present invention, by further coating alcohol-soluble dense protective layer,
It can process, can be assembled during gel casting forming to realize, and water-soluble evaporative pattern core and gel can be noted
Mould slurry is completely separated, ensures that the water in gel-casting slurry is not sucked away, will not make the salt in water-soluble evaporative pattern core
Class is dissolved into gel-casting slurry, more slurry rheology performance will not be made to change, moreover it is possible to improve water-soluble lost pattern
The finish of wicking surface, and then the surface quality of gel injection moulding blank is improved, solve a great problem in the prior art.In addition,
The water-soluble evaporative pattern core of the present invention is using ceramic powders as aggregate, in the intensity for reinforcing obtaining water-soluble evaporative pattern core
And toughness, while ensureing not to be destroyed when the processing of later stage evaporative pattern core, ceramic powders occupy a part for evaporative pattern core
Volume, so reduce curing agent dosage, reduce environmental pollution, and the ceramic powders later stage can also recycling, from entirety
On reduce cost.Generally speaking, directly gel casting forming can be successfully realized using the water-soluble evaporative pattern core of the present invention
Prepare the plain embryo of ceramics.
Application example
Below to prepare outer diameter 200mm, high 100mm, wall thickness 10mm with Gel-casting process and soluble evaporative pattern core
, for the SiC cylinder biscuits of bottom surface thickness 10mm, the present invention will be described in further detail.However, the present invention is not limited thereto is answered
Use example.
1, internal diameter 200mm is made, there are one the cylindrical metal mold of bottom surface, gel injection moulding blank needs de- high 100mm bands
When mould, this mold can be separated from the middle.And corresponding mould and evaporative pattern inner core built-in fitting are made, there is water flowing soft on built-in fitting
Pipe.
2, internal diameter 210mm, high 110mm lost patterns core mold are made, evaporative pattern core built-in fitting is fixed on evaporative pattern
The center of core mold.
3, by enough gypsum, magnesium sulfate and water according to 0.45:0.15:1 mass ratio is mixed and stirred for uniformly, is then added
Enter 20 μm of SiC powder, the ratio of SiC powder and water is 1:0.8, and stir evenly, slurry is made.
4, uniformly mixed slurry is poured into lost pattern core mold, ensures that slurry height is not less than 100mm.
Slurry is fully cured after 30min, removes lost pattern core mold, the evaporative pattern core with built-in fitting is put into 70 DEG C of baking oven
Interior drying obtains water-soluble evaporative pattern core.
5, water-soluble evaporative pattern core is processed into diameter 180mm, the cylinder of height 90mm with lathe.
6, molten for 40000 PVB ethyl alcohol in water-soluble one layer of a concentration of 15wt% of lost pattern wicking surface brushing, molecular weight
Liquid forms one layer of alcohol-soluble densification protective film after ethyl alcohol volatilization in solution.
7, water-soluble evaporative pattern core is assembled on mould；Together with water-soluble evaporative pattern core, mould is assembled
To internal diameter 200mm, in the metal die of high 100mm.It is formed outside one between water-soluble evaporative pattern core, mould and metal die
Diameter 200mm, high 100mm, wall thickness 10mm, the cavity of bottom surface thickness 10mm, and green body to be prepared is needed to correspond to.
8, gel injection-moulding SiC slurry is injected in mold.After slurry curing, formation gel injection moulding blank, to built-in fitting
Pipeline in be passed through flow.After flow reaches each position of water-soluble evaporative pattern core by hose, water-soluble lost pattern
Core starts defeated and dispersed.After waiting for that water-soluble evaporative pattern core is defeated and dispersed, mould and built-in fitting are removed, completes water-soluble evaporative pattern core
Demoulding.It removes to obtain after metal die again and required arrives gel injection-moulding SiC green bodies.
The specific implementation mode of the above present invention, is not intended to limit the scope of the present invention..It is any according to this hair
Various other corresponding changes made by bright technical concept and deformation, should be included in the protection model of the claims in the present invention
In enclosing.
Claims (10)
1. a kind of preparation method of water solubility evaporative pattern core, which is characterized in that the preparation method includes step：
S1, gypsum, magnesium sulfate, water and ceramic powders are mixed in proportion, stirs evenly, obtains mixture slurry；
S2, the mixture slurry is poured into the mold containing built-in fitting, is taken out after solidification, dried, obtain the water solubility and disappear
Lose model core.
2. preparation method as described in claim 1, which is characterized in that the preparation method further includes：It designs and manufactures described
The built-in fitting of water-soluble lost pattern in-core；The mold of design and the manufacture cast water-soluble evaporative pattern core；In the mould
The setting built-in fitting in tool.
3. preparation method as described in claim 1, which is characterized in that the step S1 include by gypsum, magnesium sulfate and water by
Ratio mixes, and stirs evenly, obtains gypsum slurry；Ceramic powders are added into the gypsum slurry again, stir evenly, are mixed
Close slurry.
4. preparation method as claimed in claim 3, which is characterized in that the volume ratio of the ceramic powders and the gypsum slurry
No more than 0.8：1.
5. preparation method as described in claim 1, which is characterized in that the mass ratio of the gypsum and the magnesium sulfate is (2-
6)：1；The quality sum of the gypsum and the magnesium sulfate, the mass ratio with the gypsum are (0.5-1)：1.
6. preparation method as described in claim 1, which is characterized in that the ceramic powders are selected from silica, aluminium oxide, carbonization
At least one of silicon or silicon nitride；The d of the ceramic powders50Less than 30 μm.
7. a kind of water solubility evaporative pattern core, which is characterized in that the water solubility evaporative pattern core in claim 1-6 by appointing
One preparation method of meaning is made.
8. a kind of application of water-soluble evaporative pattern core as claimed in claim 7, which is characterized in that the water solubility lost pattern
Core prepares biscuit green body for gel casting forming, or prepares biscuit green body for water base colloidal shaping method.
9. application as claimed in claim 8, which is characterized in that the water solubility evaporative pattern core is for gel casting forming
Method includes step：
S11, alcohol-soluble dense protective layer is coated on the water-soluble evaporative pattern core；By the water-soluble lost pattern after coating
Core is assembled on mould, and assembling obtains gel injection-moulding mold；
S12, gel-casting slurry is injected in the gel injection-moulding mold, by flow by built-in fitting injection water-soluble disappear
Model in-core keeps water-soluble evaporative pattern core defeated and dispersed；Built-in fitting is taken out, demoulding is completed, obtains gel injection-moulding biscuit green body.
10. application as claimed in claim 9, which is characterized in that the thickness of the alcohol-soluble dense protective layer is less than 0.1mm；
When flow passes through built-in fitting, the hydraulic pressure of generation is not more than 5KPa.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226686A (en) * | 2018-11-29 | 2019-01-18 | 芜湖新兴新材料产业园有限公司 | The method of casting scab is prevented in lost foam casting process |
| CN109968687A (en) * | 2019-05-13 | 2019-07-05 | 哈尔滨玻璃钢研究院有限公司 | A kind of core model and core model production method of wound composite |
| CN110834071A (en) * | 2019-10-30 | 2020-02-25 | 西安交通大学 | Casting forming method of heat exchanger |
| CN112759399A (en) * | 2020-12-29 | 2021-05-07 | 中国科学院长春光学精密机械与物理研究所 | Aluminum-based silicon carbide packaging part material and preparation method of silicon carbide preset blank body thereof |
| CN113561295A (en) * | 2021-08-13 | 2021-10-29 | 季华实验室 | Preparation method of lost foam mold core, lost foam mold and application |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010914A (en) * | 2017-04-01 | 2017-08-04 | 东风精密铸造安徽有限公司 | A kind of water-soluble plaster core formula of moltening mold castings |
-
2018
- 2018-02-09 CN CN201810132414.8A patent/CN108275958B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010914A (en) * | 2017-04-01 | 2017-08-04 | 东风精密铸造安徽有限公司 | A kind of water-soluble plaster core formula of moltening mold castings |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109226686A (en) * | 2018-11-29 | 2019-01-18 | 芜湖新兴新材料产业园有限公司 | The method of casting scab is prevented in lost foam casting process |
| CN109968687A (en) * | 2019-05-13 | 2019-07-05 | 哈尔滨玻璃钢研究院有限公司 | A kind of core model and core model production method of wound composite |
| CN110834071A (en) * | 2019-10-30 | 2020-02-25 | 西安交通大学 | Casting forming method of heat exchanger |
| CN112759399A (en) * | 2020-12-29 | 2021-05-07 | 中国科学院长春光学精密机械与物理研究所 | Aluminum-based silicon carbide packaging part material and preparation method of silicon carbide preset blank body thereof |
| CN112759399B (en) * | 2020-12-29 | 2022-05-10 | 中国科学院长春光学精密机械与物理研究所 | Aluminum-based silicon carbide packaging part material and preparation method of silicon carbide preset blank thereof |
| CN113561295A (en) * | 2021-08-13 | 2021-10-29 | 季华实验室 | Preparation method of lost foam mold core, lost foam mold and application |
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| Publication number | Publication date |
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| CN108275958B (en) | 2018-12-18 |
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