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Application filed by Научно-производственное объединение "Буммаш"filedCriticalНаучно-производственное объединение "Буммаш"
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FIELD: casting production. SUBSTANCE: sand includes a total content of liquid components (1.5-2.2) mass with next ratio of ingredients melt glass (0.9-1.4)% non-hydrolyzed ethyl silicate (0.2-0.5)% amine (0.1-0.25)% NaOH γ - (0.3-1.0)% refractory filler the balance. Molds and cores of such sand allow to lower significantly an allowance for working blanks, to decrease waviness of their surface and to prevent formation of hot tracking. EFFECT: enhanced quality of molds and cores. 1 cl, 1 tbl
SU4768879/02A1989-10-041989-10-04Self-hardenable sand casting molds and cores
SU1838987A3
(en)
Process for the manufacture of moulds made of a metal with a high melting point by spraying the said metal onto a pattern made of filled silicone lastomer
Novel 3-(2-(azabicyclo) ethyl)1,2,3,4-tetrahydro-5h(1)benzopyrano(3,4-c)pyridin-5-ones, pharmaceutical compositions containing them and processes for their production