| 摘要 |
FIELD: metallurgy. SUBSTANCE: mixture containing sawdust and quartz sand is supplemented with kaolinite clay, aluminium powder, and phosphate binder to attain following contents of components, wt.-%: sawdust, 25-30; clay, 7- 15; aluminium powder, 10-15; binder, 7-15; and quartz sand, the balance. Mix may additionally contain wood dust in amount 5-10 wt %. EFFECT: enhanced heat insulation efficiency. |
