CN108975770A - A kind of modified ceramic core material - Google Patents
A kind of modified ceramic core material Download PDFInfo
- Publication number
- CN108975770A CN108975770A CN201811031308.7A CN201811031308A CN108975770A CN 108975770 A CN108975770 A CN 108975770A CN 201811031308 A CN201811031308 A CN 201811031308A CN 108975770 A CN108975770 A CN 108975770A
- Authority
- CN
- China
- Prior art keywords
- powder
- ceramic core
- quartz glass
- spherical shape
- glass spherical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention belongs to ceramic core manufacturing technologies, are related to a kind of ceramic core material of modification.It is characterized by: the weight percent of the material prescription are as follows: zircon flour: 0%~30%；Mullite powder: 0%~30%；Quartz glass spherical shape powder: 0.5%~60%: surplus is fused silica powder.The invention proposes a kind of ceramic core materials of modification, not only can control the sintering shrinkage of ceramic core, but also reduce the liquidity value added of ceramic core slurry, avoid the influence to ceramic core depoling performance.
Description
Technical field
The invention belongs to ceramic core manufacturing technologies, are related to a kind of modified ceramic core material.
Background technique
With the continuous improvement of aero-engine performance, turbine hollow blade is increasingly becoming the essential structure of aero-engine
Part, the key of manufacturing technology is the accurate control shape of hollow blade, and ceramic core is the key that hollow blade accurately controls shape
Material.The superiority and inferiority of type core comprehensive performance, is directly related to casting qualification rate, wall thickness dimension and the surface quality of blade, and material
The factors such as ingredient, powder granularity and sintering degree can all influence the comprehensive performance of type core.A kind of current ceramic core material
Formula referring to Chinese patent application " using the compound ceramic core material of inorfil " (application number 200510047860.1),
This ceramic core material controls the sintering shrinkage of ceramic core by adding inorfil in formula.Its shortcomings that
Be: addition inorfil can lose the mobility of type core slurry, lead to ceramic core difficult forming, or even will affect the de- of type core
Core performance.
Summary of the invention
The purpose of the present invention is: propose a kind of modified ceramic core material, to can control ceramic core sintering shrinkage,
The liquidity value added for reducing ceramic core slurry avoids the depoling performance for influencing ceramic core.
The technical scheme is that a kind of modified ceramic core material, it is characterised in that: the weight hundred of the material prescription
Divide ratio are as follows: zircon flour: 0%~30%；Mullite powder: 0%~30%；Quartz glass spherical shape powder: 0.5%~60%: surplus
For fused silica powder；The purity of fused silica powder and quartz glass spherical shape powder is not less than 99.8%；In quartz glass spherical shape powder
It is worth granularity D50 in the range of 3.5 μm~50 μm.
The invention has the advantages that proposing a kind of modified ceramic core material, the sintering shrinkage of ceramic core both can control
Rate, and the liquidity value added of ceramic core slurry is reduced, avoid the depoling performance for influencing ceramic core.
Specific embodiment
The present invention is described in further details below.A kind of modified ceramic core material, it is characterised in that: the material is matched
The weight percent of side are as follows: zircon flour: 0%~30%；Mullite powder: 0%~30%；Quartz glass spherical shape powder: 0.5%~
60%: surplus is fused silica powder；The purity of fused silica powder and quartz glass spherical shape powder is not less than 99.8%；Quartz glass ball
The median particle D50 of shape powder is in the range of 3.5 μm~50 μm.
The working principle of the invention is: (1) the quartz glass spherical shape powder Surface Crystallization tendency added is big, is not easy and neighbouring
Grain sintering fusion, to play the role of suppressive core sintering shrinkage；(2) addition quartz glass spherical shape powder is without anisotropy, no
The mobility of loss type core slurry, in addition in granularity, additive amount situation appropriate can also increment type core slurry mobility, keep away
Exempt to add influence of the fiber to slurry fluidity；(3) molten mistake of the quartz glass spherical shape powder in high-temperature alkali melt is good, not shadow
The depoling ability of type core is rung, so that the additive amount of quartz glass spherical shape powder is not required to be limited by depoling.Test proves, using this
The sintering shrinkage of the ceramic core of invention formula preparation is controllable between 0.1%~1.5%.
The present invention controls ceramic core sintering shrinkage by adjusting the additive amount and granularity of quartz glass spherical shape powder to meet
The different of rate require.Specific implementation method is as follows.
A kind of modified ceramic core material, it is characterised in that: the weight percent of the material prescription are as follows: zircon flour, not
Carry out any mixed powder of any one powder of mountain flour or zircon flour, mullite powder: 20%~30%；Quartz glass is spherical
Powder: 1%~25%: surplus is fused silica powder；Range of the median particle D50 of quartz glass spherical shape powder at 3.5 μm~10 μm
It is interior.
A kind of modified ceramic core material, it is characterised in that: the weight percent of the material prescription are as follows: zircon flour or not
Carry out any mixed powder of any one powder of mountain flour or zircon flour or mullite powder: 5%~10%；Quartz glass is spherical
Powder: 10%~45%: surplus is fused silica powder；Range of the median particle D50 of quartz glass spherical shape powder at 20 μm~40 μm
It is interior.
Embodiment 1
By type core raw material, weight percent is uniformly mixed according to the following recipe: zircon flour 30%, quartz glass spherical shape powder
1%, surplus is fused silica powder；Wherein the median particle D50 of quartz glass spherical shape powder is 4 μm.By paraffin, beeswax, polyethylene
93:5:2 by weight percentage is melted into wax liquor at 120 DEG C, and after uniform stirring 12h, powder material that will be uniformly mixed is added
In wax liquor, then uniform stirring 12h, forming core slurry processed, it pours out cooling and type core material block is made.
Embodiment 2
By type core raw material, weight percent is uniformly mixed according to the following recipe: zircon flour 30%, quartz glass spherical shape powder
15%, surplus is fused silica powder；Wherein the median particle D50 of quartz glass spherical shape powder is 4 μm.By paraffin, beeswax, polyethylene
93:5:2 by weight percentage is melted into wax liquor at 120 DEG C, and after uniform stirring 12h, powder material that will be uniformly mixed is added
In wax liquor, then uniform stirring 12h, forming core slurry processed, it pours out cooling and type core material block is made.
Embodiment 3
By type core raw material, weight percent is uniformly mixed according to the following recipe: zircon flour 20%, quartz glass spherical shape powder
10%, surplus is fused silica powder；Wherein the median particle D50 of quartz glass spherical shape powder is 8 μm.By paraffin, beeswax, polyethylene
93:5:2 by weight percentage is melted into wax liquor at 120 DEG C, and after uniform stirring 12h, powder material that will be uniformly mixed is added
In wax liquor, then uniform stirring 12h, forming core slurry processed, it pours out cooling and type core material block is made.
Embodiment 4
By type core raw material, weight percent is uniformly mixed according to the following recipe: quartz glass spherical shape powder 35%, surplus is stone
English glass powder；Wherein the median particle D50 of quartz glass spherical shape powder is 20 μm.By weight percentage by paraffin, beeswax, polyethylene
93:5:2 is melted into wax liquor at 120 DEG C, after uniform stirring 12h, uniformly mixed powder material is added in wax liquor, then uniformly
12h is stirred, forming core slurry processed pours out cooling and type core material block is made.
Embodiment 5
By type core raw material, weight percent is uniformly mixed according to the following recipe: quartz glass spherical shape powder 35%, surplus is stone
English glass powder；Wherein the median particle D50 of quartz glass spherical shape powder is 35 μm.By weight percentage by paraffin, beeswax, polyethylene
93:5:2 is melted into wax liquor at 120 DEG C, after uniform stirring 12h, uniformly mixed powder material is added in wax liquor, then uniformly
12h is stirred, forming core slurry processed pours out cooling and type core material block is made.
Table 1
Claims (3)
1. a kind of ceramic core material of modification, it is characterised in that: the weight percent of the material prescription are as follows: zircon flour: 0%
~30%；Mullite powder: 0%~30%；Quartz glass spherical shape powder: 0.5%~60%: surplus is fused silica powder；Quartzy glass
The purity of glass powder and quartz glass spherical shape powder is not less than 99.8%；The median particle D50 of quartz glass spherical shape powder is 3.5 μm~50
In the range of μm；Zircon flour, white alundum powder and mullite powder are not simultaneously 0%.
2. a kind of ceramic core material of modification according to claim 1, it is characterised in that: the weight hundred of the material prescription
Divide ratio are as follows: zircon flour or any of any one powder of mullite powder or zircon flour, white alundum powder or mullite powder mix
Conjunction powder: 20%~30%；Quartz glass spherical shape powder: 1%~25%: surplus is fused silica powder；Quartz glass spherical shape powder
Median particle D50 is in the range of 3.5 μm~10 μm.
3. a kind of ceramic core material of modification according to claim 1, it is characterised in that: the weight hundred of the material prescription
Divide ratio are as follows: any one powder of zircon flour, white alundum powder or mullite powder or any of zircon flour or mullite powder mix
Conjunction powder: 5%~10%；Quartz glass spherical shape powder: 10%~45%: surplus is fused silica powder；Quartz glass spherical shape powder
Median particle D50 is in the range of 20 μm~40 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031308.7A CN108975770A (en) | 2018-09-05 | 2018-09-05 | A kind of modified ceramic core material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031308.7A CN108975770A (en) | 2018-09-05 | 2018-09-05 | A kind of modified ceramic core material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108975770A true CN108975770A (en) | 2018-12-11 |
Family
ID=64544883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811031308.7A Pending CN108975770A (en) | 2018-09-05 | 2018-09-05 | A kind of modified ceramic core material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108975770A (en) |
-
2018
- 2018-09-05 CN CN201811031308.7A patent/CN108975770A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100584487C (en) | Preparation Preliminary melting type continuous casting crystallizer protecting slag | |
| CN110845245B (en) | Compact high-purity zirconia refractory product | |
| CN102093040A (en) | Composite ceramic mold core for water pump impeller and preparation method thereof | |
| CN113929437B (en) | Low-temperature sintered sanitary ceramic body and preparation method thereof | |
| CN107746258B (en) | Ultralow-linear-change baking-free air brick and preparation method and application thereof | |
| CN104150926A (en) | Preparation method for special casting material of ferronickel rotary kiln discharge opening | |
| CN105598403A (en) | Crystallizer casting powder for stainless steel | |
| CN103922768A (en) | Functional composite zirconium oxide refractory product and preparation method thereof | |
| CN106396453A (en) | Modified granite linestone powder additive and preparation method thereof | |
| CN108405792A (en) | A kind of casting ceramsite sand and preparation method thereof | |
| CN111592330B (en) | Stoneware brick blank, preparation method thereof and stoneware brick | |
| CN107838402A (en) | A kind of manufacture method of complicated magnesium alloy structural part | |
| KR20080093799A (en) | Plastery investment used for investment casting | |
| CN106365647A (en) | Castable | |
| CN106673672B (en) | Composition for preparing aluminum water flow groove, aluminum water flow groove and preparation method thereof | |
| CN102731122B (en) | Production method of electro-fused zirconia-corundum bowl brick | |
| CN106336207B (en) | A kind of preparation method of polymorphic structure quartz ceramic | |
| CN108975770A (en) | A kind of modified ceramic core material | |
| CN205519502U (en) | Zirconium corundum does not have exothermic riser casting sand mo(u)ld of shrinkage cavity brick | |
| CN105174722B (en) | A kind of ceramic core material for adding the spherical powder of quartz glass | |
| CN115921767B (en) | Investment casting shell surface layer refractory material and preparation method thereof | |
| CN107935570A (en) | A kind of founding aluminium oxide refractory material spinelle sand mold and preparation method thereof | |
| CN107824742B (en) | A kind of amorphous state moulding sand for casting and its manufacturing method | |
| CN104926335A (en) | Ladle castable | |
| JP2017075063A (en) | Method for producing zirconia precast refractory for waste melting furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181211 |
|
| WD01 | Invention patent application deemed withdrawn after publication |