FIELD: foundry, possibly casting with use of investment patterns, namely casting parts of gas turbine engine of super-alloys.
SUBSTANCE: casting core of refractory metal has coating providing its resistance against oxidation at annealing shell casting mold and prevents reaction starting and(or) melting during casting process. Such coating contains aluminum silicate, in other variants of invention it contains silicide, zirconium silicate, oxides, nitrides, carbides. Coating may contain oxide selected from group including oxides of calcium, magnesium, aluminum, zirconium, chrome, yttrium, silicon, hafnium or their mixtures. In other variant coating includes nitride selected from group containing silicon nitride, sialon, titanium nitride or their mixtures. In specification other variants of forming coating are given.
EFFECT: improved resistance of casting cores against oxidation, lowered trend of cores to micro-cracking.
18 cl
| Title |
Year |
Author |
Number |
| CASTING CORE FOR INVESTMENT PATTERN CASTING (VARIANTS), CASTING CORE - SHELL MOLD ASSEMBLY, CASTING MOLD AND CASTING PRODUCED WITH USE OF SUCH CORE |
2002 |
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|
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2005 |
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- Snajder Dzhekob Eh.
|
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2004 |
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- Lopes Khose
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|
RU2280530C1 |
| ALLOY CASTS WITH PROTECTIVE PLIES AND METHOD OF THEIR PRODUCTION |
2009 |
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- Iorio,Luana Ehmiliana
- Ehlliott,Ehndrju Dzhon
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RU2529134C2 |
| APPARATUS FOR CASTING MEMBER OF GAS TURBINE ENGINE (VARIANTS) AND CASTING CORE OF REFRACTORY METAL (VARIANTS) |
2004 |
- Bils Dzhejms T.
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RU2282520C2 |
| CASTING UNIT AND MOLD CORE MADE FROM REFRACTORY METAL (VERSIONS) |
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- Bils Dzhejms T.
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| METHOD OF MANUFACTURE OF FOUNDRY HIGH-FIRE-REINFORCED CERAMIC FORMS |
2015 |
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| METHOD OF MAKING SILICA-FREE CERAMIC MOULD FOR LOST-WAX CASTING |
2012 |
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| METHOD OF THERMAL HYDRODEALKYLATION, METHOD OF IMPROVING RESISTANCE TO CARBONIZATION AND EMBRITTLEMENT OF LATTICE OF THERMAL NON-CATALYTIC REACTION SYSTEM, AND METHOD OF NON-CATALYTIC HYDRODEALKYLATION OF HYDROCARBON AT LOW SULFUR CONTENT |
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| METHOD OF PROTECTION OF SURFACES AGAINST EROSION, OXIDATION AND CORROSION, UNIT FOR TREATMENT OF MOLTEN METAL, REVOLVING AGITATOR OF MOLTEN METAL PURIFYING UNIT AND METHOD OF TREATMENT OF MOLTEN METAL |
2000 |
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RU2247289C2 |
