COMPOSITION FOR CASTING INVESTMENT PATTERNS Russian patent published in 2016 - IPC B22C7/02 

FIELD: technological processes.

SUBSTANCE: invention relates to metallurgy and can be used for casting blades and other GTE parts of complex configuration. Composition for casting investment patterns contains, wt%: solid hydrocarbon, and/or wax - 0.1-80, and/or polymer with fusion temperature up to 300 °C - 0.05-30, hydrocarbon resin - up to 80, phthalic acid - up to 70, dye - up to 1.5 and polystyrene or bisphenol - up to 70.

EFFECT: higher strength, hardness, crack resistance and heat resistance, low ash content, higher model surface quality and monitoring of detecting defects of the article.

4 cl, 2 tbl