CN109014025A - A kind of beryllium alumin(i)um alloy hot investment casting release agent and preparation method thereof - Google Patents
A kind of beryllium alumin(i)um alloy hot investment casting release agent and preparation method thereof Download PDFInfo
- Publication number
- CN109014025A CN109014025A CN201811107631.8A CN201811107631A CN109014025A CN 109014025 A CN109014025 A CN 109014025A CN 201811107631 A CN201811107631 A CN 201811107631A CN 109014025 A CN109014025 A CN 109014025A
- Authority
- CN
- China
- Prior art keywords
- release agent
- investment casting
- hot investment
- beryllium alumin
- alloy
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
Abstract
The invention discloses a kind of beryllium alumin(i)um alloy hot investment casting release agents and preparation method thereof, its component and weight percent are: deionized water 70~80, sodium metasilicate 4.7~6.0, aluminium oxide 10.0~13.0, silica 2.0~3.5, sodium dihydrogen phosphate 0.8~1.3, disodium-hydrogen 0.4~0.7, calcium chloride 1.5~2.5, graphene oxide 0.8~1.2, sodium tetraborate 1.0~1.8.Ingredient of the present invention and preparation are simple, component proportion science, and advantages of nontoxic raw materials is harmless；It can long-term preservation use.The present invention can effectively realize the isolating and protecting of beryllium alumin(i)um alloy Yu formwork wall, it demoulds fast and convenient, do not influence alloy component and formwork surface quality, be conducive to formwork repeatedly use and beryllium alumin(i)um alloy hot investment casting process, greatly improve work efficiency and reduce alloy casting cost.
Description
Technical field
The invention belongs to metal material hot investment casting fields, and in particular to a kind of mold spraying protection and ingot surface quality
Control, especially a kind of beryllium alumin(i)um alloy hot investment casting release agent and preparation method thereof.
Background technique
Beryllium alumin(i)um alloy combines the low-density of metallic beryllium, the high-ductility of high intensity and metallic aluminium and excellent machine additivity energy, tool
There are preferable toughness and workability, is the material of the unique light, rigidity of one kind, high damping and high stability.By 40
The development in remaining year, beryllium alumin(i)um alloy are achieved in aerospace, weapon system and automotive field and are widely applied.
Currently, the production of beryllium alumin(i)um alloy component mainly uses two methods of powder metallurgy and casting, wherein the former can be obtained
The relatively good alloy product of comprehensive performance, but its disadvantage is it is also obvious that i.e. the technical costs is high, the time is long, technical difficulty is big,
And it is difficult to obtain the alloy component with large scale and labyrinth.Using casting method, especially develop increasingly mature essence
Close casting can be prepared into the beryllium alumin(i)um alloy parts product of all kinds of shapes and size, and with short production cycle, technology in technical know-how
Difficulty is relatively low, can obtain in combination with alloying and melt fast-cooling technology comprehensive no less than powder metallurgy Be/Al alloy
Energy.
Since metallic beryllium, aluminum chemistry property are active under high temperature, alloy specific heat capacity and thermal expansion coefficient are different from common metal material
Material, alloy melting point is higher (being higher than 1200 degrees Celsius), and beryllium alumin(i)um alloy casting process has the isolating and protecting between melt and formwork
Very high request.In addition, beryllium metal price is higher, alloy precision casting requires ingot casting to be easy demoulding to guarantee surface quality, to keep away
Exempt from waste of material caused by subsequent machining process, thus the conventional oil-based release agent for being applied to Al alloys andMg alloys and steel without
Method is applied to the hot investment casting of beryllium alumin(i)um alloy.In terms of economic benefit angle, the release agent suitable for beryllium alumin(i)um alloy hot investment casting is also
It should apply to a variety of die casing materials including ceramics and graphite etc., energy effective protection alloy cast ingot and formwork, to realize mould
Shell repeatedly uses.
Summary of the invention
The deficiency for lacking the release agent of beryllium alumin(i)um alloy hot investment casting for the prior art, the purpose of the present invention is to provide
A kind of beryllium alumin(i)um alloy hot investment casting release agent, and preparation method thereof.The release agent energy high temperature resistant does not react with alloy and nothing
Poison is pollution-free, and alloy component demoulding is fast and convenient, and does not damage formwork and alloy surface, greatly reduce alloy casting at
This.
To achieve the above object, the technical scheme adopted by the invention is that:
A kind of beryllium alumin(i)um alloy hot investment casting release agent, is made by comprising the following components in parts by weight: deionized water 70.0~
80.0, sodium metasilicate 4.7~6.0, aluminium oxide 10.0~13.0, silica 2.0~3.5, sodium dihydrogen phosphate 0.8~1.3, phosphoric acid one
Hydrogen sodium 0.4~0.7, calcium chloride 1.5~2.5, graphene oxide 0.8~1.2, sodium tetraborate 1.0~1.8.
Preferably, the above-mentioned beryllium alumin(i)um alloy hot investment casting release agent of the present invention, is made by comprising the following components in parts by weight:
Deionized water 70, sodium metasilicate 6.0, aluminium oxide 13, silica 3.5, sodium dihydrogen phosphate 1.3, disodium-hydrogen 0.7, calcium chloride
2.5, graphene oxide 1.2, sodium tetraborate 1.8.
Further, the granularity of above-mentioned beryllium alumin(i)um alloy hot investment casting release agent, the aluminium oxide and silica is 500
Below mesh.
Further, the average-size of above-mentioned beryllium alumin(i)um alloy hot investment casting release agent, the graphene oxide is lower than 300
Micron.
Further, above-mentioned beryllium alumin(i)um alloy hot investment casting release agent includes following step by using component above-mentioned
Rapid method preparation:
(1) it stocks up according to the weight proportion, all solids class raw material is dried in advance；
(2) first sodium silicate raw material, sodium dihydrogen phosphate, disodium-hydrogen are dissolved in deionized water, add calcium chloride,
Sodium tetraborate and stir make to be completely dissolved；
(3) aluminium oxide, silica, graphene oxide raw material are added in step (2) resulting solution, stirring makes uniformly to divide
It is stood after dissipating；
(4) mixture of step (3) is heated to 65~80 DEG C, while continuously stirred 0.5 hour or more, is then allowed to stand cold
But spare to room temperature.
The present invention also provides a kind of methods for preparing aforementioned beryllium alumin(i)um alloy hot investment casting release agent, comprising the following steps:
(1) it stocks up according to the weight proportion, all solids class raw material is dried in advance；
(2) first sodium silicate raw material, sodium dihydrogen phosphate, disodium-hydrogen are dissolved in deionized water, add calcium chloride,
Sodium tetraborate and stir make to be completely dissolved；
(3) aluminium oxide, silica, graphene oxide raw material are added in step (2) resulting solution, stirring makes uniformly to divide
It is stood after dissipating；
(4) mixture of step (3) is heated to 65~80 DEG C, while continuously stirred 0.5 hour or more, is then allowed to stand cold
But spare to room temperature.
The above-mentioned preparation method of the present invention, step (2) first by after sodium metasilicate, sodium dihydrogen phosphate, disodium-hydrogen dissolution again
Calcium chloride and sodium tetraborate is added, this sequence can avoid that room temperature item is added simultaneously when sodium metasilicate and sodium tetraborate solid or powder
The agglomeration being also easy to produce when in the water under part is conducive to the quick dissolution of sodium tetraborate.
Preferably, the drying of above method step (1) carries out in the drying box at 75~85 DEG C of temperature.Drying time exists
6 hours or more.Disodium-hydrogen and disodium hydrogen phosphate are placed for a long time can be changed due to absorbing hydrone by five water objects at room temperature
It is about seven water objects, molal weight increases, is unfavorable for controlling its Exact concentrations in the solution by weighting manner；It is heated to 100
DEG C when can lose whole crystallizations water again into anhydride, be unfavorable for dissolution in water, then decompose, lose under higher temperature
Effect.In addition, disodium-hydrogen can be eventually converted into the phosphate dihydrate disodium hydrogen of white powder in 34 DEG C or less long-term placement.At this
Within the temperature range of invention, two kinds of substances can form two stable hydrates of molecular formula after toasting 6h or more, can pass through
Weighting manner accurate concentration control, while can quickly be dissolved in the water.
Preferably, it is completely molten in a kind of upper raw material when above method step (2) is dissolved in deionized water by solid material
Subsequent raw material is added after solution.The mode of operation can avoid a variety of alkaline matter powder while being added to generate in room temperature water to reunite now
As and be unfavorable for dissolving.
In the method for the invention, stirring described in step (2)~(4), revolving speed is excessively high to make solution dissolve excessive air
(especially oxygen), later period need to remove dissolved gas using ultrasonic power again, and the bulk gas otherwise dissolved is in release agent quilt
The process brushed in die surface and drying can release, so that it is even damaged so that coating is generated bulge.It is therefore preferable that
Ground, stirring described in step (2)~(4) are completed using motor machine, and revolving speed is lower than 600r/min, and mixing time is lower than 20 points
Clock.
Preferably, above method step (3) stands 1h or more.1h or more is stood, solution more can be released fully and be stirred
The gas dissolved during mixing.
A kind of component selection principle of beryllium alumin(i)um alloy hot investment casting release agent provided by the invention is: sodium dihydrogen phosphate, phosphorus
A sour hydrogen sodium and sodium tetraborate form buffer solution system in the solution, even if solution absorbs two in air during standing
The sour gas such as carbonoxide also can effectively remain alkalescent for a long time, help to keep dividing equally for aluminium oxide and silica for a long time
Distribution is without settling；Sodium metasilicate is as adhesive resistant to high temperature, by tight adhesion after material of main part aluminium oxide and silica solidification
On formwork surface, the two thermal conductivity is good, and the rapid cooling for being conducive to melt is cooling, and any not anti-with alloy raw material generation
It answers；Calcium chloride introduces calcium ion, and generation is reacted with other components has lipophilic saponification calcium, is conducive to improve release agent painting
Layer and sufficiently fills up formwork surface defect in the permeability and adhesive force on ceramic material and porosity graphite material formwork surface.
But cooling procedure after pouring, saponification calcium occur slowly to decompose to reduce the adhesiveness of coating Yu formwork wall, be conducive to
Subsequent demoulding；When graphene oxide can effectively improve comprehensive strength and the casting of release agent coating as composite reinforcing material
Thermal shock resistance.
Beryllium alumin(i)um alloy hot investment casting release agent of the invention, rationally, component proportion is scientific, raw materials used nontoxic nothing for formula
Evil, can long-term preservation, use, cost is relatively low；Preparation method technological specification, it is easy to operate.The release agent can be by spraying, brushing
Painting mode uses, and can effectively realize the isolating and protecting of alloy Yu formwork wall, and demoulding is fast and convenient, does not influence alloy component and formwork
Surface quality, be conducive to formwork repeatedly use and beryllium alumin(i)um alloy hot investment casting process, greatly improve work efficiency simultaneously
Reduce alloy casting cost.
Detailed description of the invention
Fig. 1 is the structural representation after a kind of beryllium alumin(i)um alloy hot investment casting release agent of the present invention sprays on formwork surface
Figure, formwork -1, release agent coating -2, formwork defect -3；
Fig. 2 is the alloy-steel casting surface quality comparison diagram of embodiment 4, and a is the conjunction made after release agent prepared with embodiment 3
Golden cast(ing) surface, b are the quality versus on alloy-steel casting surface when release agent is not used.
Specific embodiment
It is illustrated below by way of specific embodiment is further to summary of the invention of the invention.
Embodiment 1
A kind of beryllium alumin(i)um alloy hot investment casting release agent and preparation method thereof is realized by following steps:
(1) raw material components and shared parts by weight are as follows: deionized water 75.0, sodium metasilicate 5.5, aluminium oxide 12.0, silica
2.0, sodium dihydrogen phosphate 0.8, disodium-hydrogen 0.4, calcium chloride 2.0, graphene oxide 1.0, sodium tetraborate 1.3.Wherein aoxidize
Aluminium and silicon oxide powder granularity are 400 mesh, and graphene oxide average-size is 120 microns；
(2) the preparation method comprises the following steps:
(1) raw material got ready is put into air dry oven and is dried 8 hours at 80 degrees Celsius；
(2) it is added raw materials into according to the sequence of sodium metasilicate, sodium dihydrogen phosphate, disodium-hydrogen, calcium chloride, sodium tetraborate
In ionized water, dissolution of raw material is made using mechanical stirring, revolving speed 300r/min the time 20 minutes, is completely dissolved in a kind of upper raw material
A kind of raw material after the addition afterwards；
(3) aluminium oxide, silica, graphene oxide raw material are added in step (2) resulting solution simultaneously, mechanical stirring
Keep all solids powder evenly dispersed, mixing time 25 minutes, it is small to be stood 1.2 later by speed of agitator 300r/min for mixture
When；
(4) it is kept the temperature after said mixture being heated to 75 DEG C, while continuous mechanical stirring 1.0 hours, revolving speed 400r/min,
After stand it is spare to room temperature.
Embodiment 2
A kind of beryllium alumin(i)um alloy hot investment casting release agent and preparation method thereof is realized by following steps:
(1) raw material components and shared parts by weight are as follows: deionized water 80, sodium metasilicate 4.8, aluminium oxide 10, silica 2.5, phosphorus
Acid dihydride sodium 1.0, disodium-hydrogen 0.5, calcium chloride 1.5, graphene oxide 0.8, sodium tetraborate 1.0.Wherein aluminium oxide and oxygen
SiClx powder size is 200 mesh, and graphene oxide average-size is 200 microns；
(2) the preparation method comprises the following steps:
(1) raw material got ready is put into air dry oven and is dried 6 hours at 75 degrees Celsius；
(2) it is added raw materials into according to the sequence of sodium metasilicate, sodium dihydrogen phosphate, disodium-hydrogen, calcium chloride, sodium tetraborate
In ionized water, dissolution of raw material is made using mechanical stirring, revolving speed 480r/min the time 30 minutes, is completely dissolved in a kind of upper raw material
A kind of raw material after the addition afterwards；
(3) aluminium oxide, silica, graphene oxide raw material are successively added in step (2) resulting solution, mechanical stirring
Keep all solids powder evenly dispersed, mixing time 30 minutes, it is small to be stood 1.0 later by speed of agitator 450r/min for mixture
When；
(4) it is kept the temperature after said mixture being heated to 80 DEG C, while continuous mechanical stirring 1.0 hours, revolving speed 480r/min,
After stand it is spare to room temperature.
Embodiment 3
A kind of beryllium alumin(i)um alloy hot investment casting release agent and preparation method thereof is realized by following steps:
(1) raw material components and shared parts by weight are as follows: deionized water 70, sodium metasilicate 6.0, aluminium oxide 13, silica 3.5, phosphorus
Acid dihydride sodium 1.3, disodium-hydrogen 0.7, calcium chloride 2.5, graphene oxide 1.2, sodium tetraborate 1.8.Wherein aluminium oxide and oxygen
SiClx powder size is 400 mesh, and graphene oxide average-size is 150 microns；
(2) the preparation method comprises the following steps:
(1) raw material got ready is put into air dry oven and is dried 6 hours at 85 degrees Celsius；
(2) it is added raw materials into according to the sequence of sodium metasilicate, sodium dihydrogen phosphate, disodium-hydrogen, calcium chloride, sodium tetraborate
In ionized water, dissolution of raw material is made using mechanical stirring, revolving speed 600r/min the time 30 minutes, is completely dissolved in a kind of upper raw material
A kind of raw material after the addition afterwards；
(3) aluminium oxide, silica, graphene oxide raw material are added in step (2) resulting solution simultaneously, mechanical stirring
Keep all solids powder evenly dispersed, mixing time 20 minutes, it is small to be stood 1.0 later by speed of agitator 600r/min for mixture
When；
(4) it is kept the temperature after said mixture being heated to 80 DEG C, while continuous mechanical stirring 1.5 hours, revolving speed 500r/min,
After stand it is spare to room temperature.
Embodiment 4
Release agent prepared by embodiment 3 is sprayed on beryllium alumin(i)um alloy precise casting mould shell surface, structural schematic diagram such as Fig. 1
It is shown, even if formwork surface is defective, can also avoid impacting alloy-steel casting by release agent.Then aluminizing conjunction is carried out
Golden hot investment casting, as shown in b in Fig. 2, alloy surface is smooth complete, high-quality on the beryllium alumin(i)um alloy surface cast.Demoulding is not sprayed
Agent carries out beryllium alumin(i)um alloy hot investment casting under the same conditions, and the beryllium alumin(i)um alloy surface cast is as shown in a in Fig. 2, and alloy surface is not
It is smooth, have flaw, it is of poor quality, and waste material.
As it can be seen that release agent of the invention is directed to the specific demand of beryllium alumin(i)um alloy hot investment casting, and fully consider alloying component
And the characteristics of formwork, can high temperature resistant, do not react with alloy and nontoxic and pollution-free and damage formwork and alloy surface.
Above embodiments are only preferred embodiment of the invention, and embodiments of the present invention and protection scope are not limited to
Embodiment is stated, all designs and technical solution using under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that pair
For those skilled in the art, several changes under the premise of not departing from design principle of the present invention should also be regarded as this hair
Bright protection scope.
Claims (10)
1. a kind of beryllium alumin(i)um alloy hot investment casting release agent, which is characterized in that be made by comprising the following components in parts by weight: deionization
Water 70.0~80.0, sodium metasilicate 4.7~6.0, aluminium oxide 10.0~13.0, silica 2.0~3.5, sodium dihydrogen phosphate 0.8~
1.3, disodium-hydrogen 0.4~0.7, calcium chloride 1.5~2.5, graphene oxide 0.8~1.2, sodium tetraborate 1.0~1.8.
2. beryllium alumin(i)um alloy hot investment casting release agent according to claim 1, which is characterized in that by including following parts by weight
Component is made: deionized water 70, sodium metasilicate 6.0, aluminium oxide 13, silica 3.5, sodium dihydrogen phosphate 1.3, disodium-hydrogen 0.7,
Calcium chloride 2.5, graphene oxide 1.2, sodium tetraborate 1.8.
3. beryllium alumin(i)um alloy hot investment casting release agent according to claim 1 or 2, which is characterized in that the aluminium oxide and oxygen
The granularity of SiClx is 500 mesh or less.
4. beryllium alumin(i)um alloy hot investment casting release agent according to claim 1 or 2, which is characterized in that the graphene oxide
Average-size be lower than 300 microns.
5. beryllium alumin(i)um alloy hot investment casting release agent according to claim 1 or 2, which is characterized in that the release agent uses
Method comprising the following steps preparation:
(1) it stocks up according to the weight proportion, all solids class raw material is dried in advance；
(2) first sodium silicate raw material, sodium dihydrogen phosphate, disodium-hydrogen are dissolved in deionized water, add calcium chloride, four boron
Sour sodium and stir make to be completely dissolved；
(3) will aluminium oxide, silica, graphene oxide raw material be added step (2) resulting solution in, stirring make it is evenly dispersed after
It stands；
(4) mixture of step (3) is heated to 65~80 DEG C, while continuously stirred 0.5 hour or more, be then allowed to stand and be cooled to
Room temperature is spare.
6. a kind of method for preparing beryllium alumin(i)um alloy hot investment casting release agent described in Claims 1 to 5 any one, feature exist
In, comprising the following steps:
(1) it stocks up according to the weight proportion, all solids class raw material is dried in advance；
(2) first sodium silicate raw material, sodium dihydrogen phosphate, disodium-hydrogen are dissolved in deionized water, add calcium chloride, four boron
Sour sodium and stir make to be completely dissolved；
(3) will aluminium oxide, silica, graphene oxide raw material be added step (2) resulting solution in, stirring make it is evenly dispersed after
It stands；
(4) mixture of step (3) is heated to 65~80 DEG C, while continuously stirred 0.5 hour or more, be then allowed to stand and be cooled to
Room temperature is spare.
7. the method according to claim 6 for preparing beryllium alumin(i)um alloy hot investment casting release agent, which is characterized in that step (1)
Drying carried out in the drying box at 75~85 DEG C of temperature.
8. the method according to claim 6 for preparing beryllium alumin(i)um alloy hot investment casting release agent, which is characterized in that step (2)
In sequence by solid material dissolution in deionized water when, subsequent raw material should be added after a kind of upper raw material is completely dissolved.
9. the method according to claim 6 for preparing beryllium alumin(i)um alloy hot investment casting release agent, which is characterized in that step (2)
Stirring described in~(4) is completed using motor machine, and revolving speed should be lower than 600r/min, and mixing time should be greater than 20min.
10. the method according to claim 6 for preparing beryllium alumin(i)um alloy hot investment casting release agent, which is characterized in that step (3)
The time of the standing is 1h or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107631.8A CN109014025B (en) | 2018-09-21 | 2018-09-21 | Beryllium-aluminum alloy precision casting release agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107631.8A CN109014025B (en) | 2018-09-21 | 2018-09-21 | Beryllium-aluminum alloy precision casting release agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109014025A true CN109014025A (en) | 2018-12-18 |
| CN109014025B CN109014025B (en) | 2020-06-09 |
Family
ID=64617576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811107631.8A Active CN109014025B (en) | 2018-09-21 | 2018-09-21 | Beryllium-aluminum alloy precision casting release agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109014025B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1158945A (en) * | 1966-03-03 | 1969-07-23 | Du Pont | Processing of Metals and Compositions and articles used therein |
| CN1066078A (en) * | 1991-12-29 | 1992-11-11 | 天津大学 | Aluminum-carbon fire-proof material anti-oxidation coating and preparation thereof |
| EP0810046A1 (en) * | 1996-05-31 | 1997-12-03 | BRUSH WELLMAN Inc. | Coated cores and metal casting therewith |
| CN101462148A (en) * | 2007-12-19 | 2009-06-24 | 鸿富锦精密工业（深圳）有限公司 | Alloy-processing tool and coating agent thereof |
| CN103480796A (en) * | 2013-10-12 | 2014-01-01 | 青海三工镁业有限公司 | Magnesium and magnesium alloy ingot mold release agent and preparation method thereof |
| CN103658533A (en) * | 2013-12-10 | 2014-03-26 | 西北稀有金属材料研究院 | Ceramic shell mould used for beryllium aluminium alloy, and preparation method thereof |
| CN105710281A (en) * | 2014-12-05 | 2016-06-29 | 重庆永林机械设备有限公司 | Water-based paint for metal casting |
| CN107442740A (en) * | 2017-07-26 | 2017-12-08 | 合肥尚强电气科技有限公司 | A kind of battery grid releasing agent used for casting and preparation method thereof |
| CN108300921A (en) * | 2018-04-04 | 2018-07-20 | 中国工程物理研究院材料研究所 | A kind of aluminizing zirconium system multicomponent alloy and preparation method thereof |
-
2018
- 2018-09-21 CN CN201811107631.8A patent/CN109014025B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1158945A (en) * | 1966-03-03 | 1969-07-23 | Du Pont | Processing of Metals and Compositions and articles used therein |
| CN1066078A (en) * | 1991-12-29 | 1992-11-11 | 天津大学 | Aluminum-carbon fire-proof material anti-oxidation coating and preparation thereof |
| EP0810046A1 (en) * | 1996-05-31 | 1997-12-03 | BRUSH WELLMAN Inc. | Coated cores and metal casting therewith |
| CN101462148A (en) * | 2007-12-19 | 2009-06-24 | 鸿富锦精密工业（深圳）有限公司 | Alloy-processing tool and coating agent thereof |
| CN103480796A (en) * | 2013-10-12 | 2014-01-01 | 青海三工镁业有限公司 | Magnesium and magnesium alloy ingot mold release agent and preparation method thereof |
| CN103658533A (en) * | 2013-12-10 | 2014-03-26 | 西北稀有金属材料研究院 | Ceramic shell mould used for beryllium aluminium alloy, and preparation method thereof |
| CN105710281A (en) * | 2014-12-05 | 2016-06-29 | 重庆永林机械设备有限公司 | Water-based paint for metal casting |
| CN107442740A (en) * | 2017-07-26 | 2017-12-08 | 合肥尚强电气科技有限公司 | A kind of battery grid releasing agent used for casting and preparation method thereof |
| CN108300921A (en) * | 2018-04-04 | 2018-07-20 | 中国工程物理研究院材料研究所 | A kind of aluminizing zirconium system multicomponent alloy and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109014025B (en) | 2020-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105693254A (en) | Water-soluble ceramic core material and preparation method thereof | |
| CN102145372B (en) | Coating for metal mold casting of aluminum alloy thin-walled piece and preparation method and coating method thereof | |
| CN102873266B (en) | Alcohol-group dry powder sand mould foundry coating | |
| CN109909448B (en) | Preparation method of foam model and method for preparing metal matrix composite material | |
| CN102489670B (en) | Ceramic core for molding of support plate and preparation method thereof | |
| CN105522112A (en) | High-collapsibility ceramic shell for manufacturing magnesium alloy fusible pattern and preparation method for high-collapsibility ceramic shell | |
| CN1050551C (en) | Paint for spun cast pipe | |
| CN100410413C (en) | Carbon fiber mixing reinforced magnesium-base high modulus composite material and its preparing process | |
| JPH04500780A (en) | Method for preparing molds and cores used in metal casting | |
| CN102921885A (en) | Sand casting technology for titanium, zirconium and nickel and alloy casting thereof | |
| CN109482813A (en) | WCp/EPS evaporative pattern apperance and the preparation of WCp/Fe composite material | |
| CN103706757A (en) | Magnesium alloy evaporative pattern casting coating and preparation method thereof | |
| CN103084542A (en) | Process for casting heat-resistant steel or wear-resistant alloy steel by evaporative pattern casting (EPC) | |
| CN102366819A (en) | Method for precision casting of titanium alloy | |
| CN102351519A (en) | Cast ceramic core and preparation method thereof | |
| CN104209455B (en) | A kind of refractory aggregate and consisting of stainless steel cast paint and preparation method thereof | |
| CN102744366A (en) | Preparation method of titanium aluminium-based and niobium silicon-based alloy directional solidification investment precision casting mold shell | |
| CN102873267A (en) | Alcohol-based paint for sand casting and preparation method thereof | |
| CN101259516B (en) | Sodium silicate chemical modification for casting and preparation and application thereof | |
| CN102430704B (en) | Preparation method for lost foam casting paint | |
| CN103286273A (en) | Making method of ceramic core for molding of casing annular casting hollow support plate | |
| CN110280729A (en) | A kind of method that multi-source ultrasonic wave auxiliary D.C.casting prepares big specification 7XXX line aluminium alloy slab ingot | |
| CN104550736A (en) | Preparation method of boron nitride ceramic shell used for precision casting of titanium and titanium alloy | |
| CN110899609B (en) | Graphite type coating paste for titanium and titanium alloy casting and preparation method and application thereof | |
| CN109014025A (en) | A kind of beryllium alumin(i)um alloy hot investment casting release agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |