Patent ID: 11958942
Assignee: SOUTHWEST FORESTRY UNIVERSITY
Field: Machine tools (Mechanical engineering)
Classification: CPC C  B | IPC B  C

Claim 2:
3. A method for producing a new particle board, comprising:
(1) cutting a UF-glued wood-based panel into 2.54 mm×5.08 mm panel pieces, placing the panel pieces and distilled water at a weight ratio of 1:5 in an ultrasonic processor, and conducting an ultrasonic treatment at an ultrasonic frequency of 40 kHz and 50° C. to 80° C. for 40 min to 100 min to obtain a recycled wood-based panel pieces; soaking the recycled wood-based panel pieces in a pool at a room temperature for half an hour;
(2) heat-grinding the recycled wood-based panel pieces with a moisture content of 77% in a heat grinder to obtain a recycled wood-based panel raw material; and
(3) mixing the recycled wood-based panel raw material with industrial UF to obtain a mixture, using the mixture as a particle board core layer to produce a common particle board, and conducting hot pressing to obtain the new particle board containing 50% of a recycled particle board raw material, wherein in the common particle board, an upper surface layer, the core layer, and a lower surface layer are at a ratio of 25:50:25, and the recycled particle board raw material has a utilization rate of 50%.