FIELD: agriculture; technological processes.
SUBSTANCE: invention relates to treatment of vegetal raw materials, in particular, to production of pressed building plates from straw. Cereal straw is crushed to particle size of less than 200 mcm and dried to moisture content of less than 5 %. Prior to hot pressing, molding of prepared straw is performed at room temperature at pressure not lower than 5 MPa for at least 1 min. Hot pressing in mold is carried out at temperature up to 140–160 °C at pressure not lower than 20 MPa. Mold cooling after hot pressing is performed at pressure of not lower than 20 MPa to temperature of up to 40–50 °C.
EFFECT: higher strength of plates.
1 cl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION FOR MANUFACTURING PRESSED MATERIALS FROM STRAW OF GRAIN AGRICULTURAL CROPS (VERSIONS) | 2016 |
|
RU2639981C1 |
| COMPOSITION FOR MOLDING COMPOSITION | 2016 |
|
RU2655989C2 |
| SAWDUST CHIPBOARD | 2015 |
|
RU2608531C2 |
| MOULDING MATERIAL, METHOD OF OBTAINING THEREOF AND METHOD OF OBTAINING PLATE MATERIALS ON ITS BASIS | 2008 |
|
RU2381244C2 |
| METHOD OF PRODUCTION OF WOOD BOARDS | 2013 |
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RU2541323C1 |
| METHOD FOR PRODUCING BIOLOGICAL COMPOSITE MATERIAL | 2015 |
|
RU2598911C9 |
| METHOD FOR PRODUCTION OF PLATE MATERIALS BASED ON VEGETABLE RAW MATERIALS AND BIFUNCTIONAL SYNTHETIC BINDERS | 2016 |
|
RU2694748C2 |
| WOOD BOARD | 2022 |
|
RU2784506C1 |
| MOLDED MATERIAL, METHOD OF ITS PRODUCTION AND METHOD OF PRODUCING COMPOSITE MATERIAL BASED ON MOLDED MATERIAL | 1999 |
|
RU2152966C1 |
| METHOD OF PRODUCING PLATE MATERIALS BASED ON CAVITABLE VEGETABLE RAW MATERIAL AND SYNTHETIC CONNECTIONS | 2016 |
|
RU2656067C2 |
