FIELD: foundry. SUBSTANCE: binder contains 82-92% by weight of lignosulfonates (commercial), 8-18% by weight of still-remainder of periodic distillation of caprolactam based on aqueous solution of caprolactam. Mixture contains 95% by weight of quartz sand and 5% by weight of binder. It allows strength of casting molds and cores in hot state to be increased by 1.8-2 times. EFFECT: improved quality of casting molds and cores by increased strength in hot state, wider source of raw materials of modifiers for commercial lignosulfonates, increased output of core manufacturing automatic machines. 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| BINDER FOR MAKING OF MOLDS AND HEAT HARDENING RODS | 1991 |
|
RU2015789C1 |
| BINDING COMPOUND FOR COLD-CURING MOULD AND CORE SAND | 0 |
|
SU1676736A1 |
| COMPOSITION FOR MANUFACTURE OF CORES AND THERMAL SOLIDIFICATION MOLDS | 1991 |
|
RU2017555C1 |
| BINDER FOR PRODUCING MOULDS AND CORES OF HEAT SOLIDIFICATION | 1982 |
|
SU1077127A1 |
| BINDER FOR MAKING CASTING MOLDS AND CORES OF HEAT SOLIDIFICATION | 1985 |
|
SU1334489A1 |
| MIXTURE TO PRODUCE CASTING RODS AND MOULDS, HARDENING IN HEATED EQUIPMENT | 1990 |
|
SU1790083A1 |
| BINDER OF HEAT SOLIDIFICATION FOR MANUFACTURING MOULDS AND CORES | 1981 |
|
SU1115308A1 |
| BINDER OF HEAT SOLIDIFICATION FOR PRODUCING MOULDS AND CORES | 1982 |
|
SU1081888A1 |
| COMPLEX MODIFIER OF TECHNICAL LIGNOSULFONATES | 1990 |
|
SU1812701A1 |
| COMPOUND FOR PRODUCING ADDITIVE FOR REDUCING VISCOSITY OF CEMENT MORTAR AND DRILLING MUD | 0 |
|
SU1650674A1 |
Authors
Dates
1994-12-15—Published
1988-03-23—Filed