FIELD: process engineering.
SUBSTANCE: invention relates to woodwork, wasteless processes and ecology. Proposed method comprises grinding of process wood chips in two steps and adding additives to and ground bark to wood-fiber mass in amount of 6-16% of absolutely dry fiber mass. First, bark is ground to 0.05-0.8 mm-particle size and soaked in water at 60-100°C for, at least, 2-4 h at weight ratio of 1:10-1:14. Then, wood fiber carpet is made to form boards to be pressed, tempered and conditioned.
EFFECT: lower costs and emission of formaldehyde.
2 cl, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESSING OF WOOD WASTES IN PRODUCTION OF FIBREBOARDS | 2011 |
|
RU2515230C2 |
| METHOD OF OBTAINING LIGNOCELLULOSIC SEMI-FINISHED GOODS AND DEVICE FOR ITS IMPLEMENTATION | 2011 |
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| WOOD BOARD | 2022 |
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| METHOD AND SYSTEM TO CATCH WOOD FIBRE FROM INDUSTRIAL WASTE WATERS IN PRODUCTION OF FIBREBOARDS | 2010 |
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| COMPOSITION FOR MAKING FIRE-RESISTANT FIBREBOARD | 2011 |
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RU2486054C1 |
| COMPOSITION FOR MAKING WOOD-FIBER BOARDS | 1993 |
|
RU2087502C1 |
| METHOD OF PRODUCING FIBREBOARD PANELS | 0 |
|
SU943367A1 |
| METHOD OF PRODUCING FIBRE BOARDS OF MEDIUM DENSITY | 0 |
|
SU1291409A1 |
| PROCESS FOR MANUFACTURING WOOD FIBER BOARDS | 1991 |
|
RU2009888C1 |
| 0 |
|
SU442942A1 |
