Производственное Объединение "Запорожтрансформатор"
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Priority to UA3393721ApriorityCriticalpatent/UA12265A1/en
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Method for making parts of fiber mass, mostly of mass for production of cardboard, includes washing and formation of fiber on porous form under vacuum, dewatering of article, pressing and drying. To increase quality of articles washing and forming of fiber are carried out on sand form, before pressing article is covered with fabric and pressing and drying are carried out simultaneously through sand layer.
UA3393721A1982-02-021982-02-02Method for production of articles made of fiber mass and device for its implementation
UA12265A1
(en)
Process and device for impregnating fibrous material prior to digestion utilizing pulsation produced by differential pressure between digester3pressure and lower one