FIELD: metallurgy.
SUBSTANCE: sand contains, wt %: high strength gypsum 12.7-19.8; fine dispersed high silica sand 49.9-61.1; nine-water aluminium nitrate 0.9 -2.4; water - the rest.
EFFECT: increased gas permeability of sand and increased quality of finished casts.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| FLUID MIX WITH INCREASED THERMOCHEMICAL STABILITY FOR PATTERN CASTING 3D MOULDS | 2010 |
|
RU2427441C1 |
| POURING SELF-SETTING MOLDING SAND FOR MAKING MOLDS AND CORES AT PRODUCING CASTINGS WITH USE OF INVESTMENT PATTERNS | 2004 |
|
RU2252103C1 |
| POURED SELF HARDENING BLEND ON CEMENT BINDING FOR FABRICATION OF PRECISION CASTINGS | 2007 |
|
RU2326750C1 |
| MIX FOR MANUFACTURING OF SHAPES AND RODS IN PRECISION CASTING AND METHOD OF ITS MANUFACTURING | 2008 |
|
RU2385782C1 |
| METHOD OF PREPARING SAND FOR MANUFACTURE OF GYPSUM MOLDS AND CORES IN PRODUCTION OF CASTINGS FROM NONFERROUS ALLOYS | 1999 |
|
RU2162762C1 |
| MIXTURE FOR MANUFACTURING MOLDS AND RODS ON GYPSUM BINDER IN PRODUCTION OF NONFERROUS AND PRECIOUS ALLOY CASTINGS | 2000 |
|
RU2175902C1 |
| MOULDING SAND FOR MAKING INVESTMENT MOULDS | 0 |
|
SU1115835A1 |
| SAND FOR MAKING OF MOULDS | 2002 |
|
RU2207932C1 |
| MOLDING SAND FOR JEWELRY CASTING | 2000 |
|
RU2165817C1 |
| SAND FOR MAKING MOULDS BY INVESTMENT PATTERN | 0 |
|
SU1323204A1 |
