FIELD: construction.
SUBSTANCE: charge for manufacturing foamed material includes amorphous silicic rock and sodium liquid glass with modulus of 1.2-1.5 and density of 1350-1400 kg/m3 at the following component ratio, wt %: amorphous silicic rock - 43; sodium liquid glass - 57. Initial charge components are mixed during 10-15 minutes and plastic moulding compound is obtained. Mass is granulated with further granule powdering in expanded vermiculite with grain size of 0.5-2.5 mm. Foaming of granulated charge is performed in closed volume of a metal mould at the temperature of 680-700°C during 0.5-1 hour. Cooling of moulds with ready-made items is performed from foaming temperature to the temperature of 50°C in the air during 1-3 h.
EFFECT: simpler technology for obtaining foamed material; lower charge foaming temperature; lower thermal stresses in an item.
2 cl, 1 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| CHARGE COMPOSITION AND METHOD OF PRODUCING FOAMED HEAT-INSULATING MATERIAL | 2015 |
|
RU2606539C1 |
| METHOD OF PRODUCING HEAT-INSULATING MATERIAL AND MIXTURE FOR PRODUCTION THEREOF | 2011 |
|
RU2478586C2 |
| CHARGE COMPOSITION FOR PRODUCING FOAMED HEAT-INSULATING MATERIAL | 2017 |
|
RU2655499C1 |
| METHOD OF PRODUCING FOAMED HEAT INSULATING MATERIAL | 2017 |
|
RU2657577C1 |
| CHARGE COMPOSITION FOR PRODUCING HEAT-INSULATING BLOCKS FROM NATURAL QUARTZ SAND | 2023 |
|
RU2817428C1 |
| BATCH COMPOSITION AND METHOD OF PRODUCING FOAMED GLASS | 2015 |
|
RU2608095C1 |
| METHOD OF PRODUCING FOAMED SILICATE MATERIAL | 2023 |
|
RU2817369C1 |
| METHOD OF PRODUCING FOAMED GLASS AND MIXTURE FOR PRODUCING FOAMED GLASS | 2011 |
|
RU2478587C2 |
| CHARGE COMPOSITION FOR PRODUCING HEAT-INSULATING BLOCKS FROM APATITO-NEPHELINE ORES PROCESSING WASTE | 2022 |
|
RU2799217C1 |
| METHOD OF MAKING HEAT-INSULATION BLOCKS | 2012 |
|
RU2513807C2 |
