FIELD: metallurgy.
SUBSTANCE: method involves forming a shell on the model block using silica binder, a refractory filler and dusting material, drying of shell layers, melting of model composition and shell tempering. The main silica is used as a binder, and yttrium oxide is used as the refractory filler and dusting cover. After each layer is applied, it is impregnated with aqueous solution of an aluminoborbophosphate concentrate while simultaneously exposing said solution to ultrasound with intensity of 10…15 kW/m2.
EFFECT: acceleration of mould formation cycle and increase of thermochemical stability of ceramic shell moulds to heat-resistant alloys poured in vacuum, including intermetallic alloys of titanium-aluminium system.
2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MANUFACTURING OF CERAMIC MOLDS ACCORDING TO MELTED MODELS FOR OBTAINING PRECISE CASTINGS FROM CHEMICALLY ACTIVE AND HEAT-RESISTANT ALLOYS | 2021 |
|
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| METHOD FOR MANUFACTURING CERAMIC MOULDS FOR EQUIAXIAL CASTING OF HEAT-RESISTANT ALLOYS ON MOLTEN MODELS | 2016 |
|
RU2641205C1 |
| METHOD OF MOULD MAKING BY INVESTMENT PATTERNS (VERSIONS) | 2011 |
|
RU2478453C1 |
| METHOD OF MAKING SILICA-FREE CERAMIC MOULD FOR LOST-WAX CASTING | 2013 |
|
RU2532583C1 |
| METHOD FOR MAKING CERAMIC SHELL MOLDS FOR CASTING WITH USE OF INVESTMENT PATTERNS | 2006 |
|
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| METHOD FOR MAKING CERAMIC MOLDS BY INVESTMENT WAX | 2021 |
|
RU2756703C1 |
| METHOD FOR MANUFACTURING A CERAMIC CASTING MOLD USING LIQUID-FILLING SELF-HARDENING MIXTURES FOR CASTING ACCORDING TO SMELTED MODELS | 2021 |
|
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| METHOD OF FIXING LAYERS OF LIQUID-GLASS COATING IN INVESTMENT CASTING | 2009 |
|
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| METHOD FOR OBTAINING CERAMIC FORMS BY ELECTROPHORESIS METHOD FOR CASTING BY PRISONABLE MODELS OF CHEMICALLY ACTIVE ALLOYS | 2016 |
|
RU2630081C1 |
| SOLUTION AND METHOD FOR CHEMICALLY FIXING LAYERS OF LIQUID-GLASS COATING AT CASTING WITH USE OF INVESTMENT PATTERNS | 2003 |
|
RU2228816C1 |
