The invention discloses a circulating production process for an oriented structural board from timber offcut. The circulating production process comprises the following steps of offcut collection, offcut cooking, offcut barking,
veneer rotary
cutting,
veneer drying,
veneer neatening, gluing
assembly, prepressing,
hot pressing, edge
cutting, inspection and grading, and packaging and storage. In theprocess of
raw material treatment, the steps of offcut cooking and veneer
drying are adopted, offcut cooking can effectively remove eggs hidden in the offcut, the service life of timber is effectively prolonged, and the performance of the timber is also promoted; wet
drying is adopted for veneer drying, the situation that timber surfaces dry too fast and lead to dramatic surface shrinkage, deformation and
cracking, causing product damage or degradation is avoided, or a crust is formed on the surface and prevents overflow of internal
moisture; and adhesion agents are rearranged and have good adhesion and
flame resistance, the performance of the oriented structural board after forming is guaranteed, meanwhile the formula of the adhesion agents does not contain
formaldehyde or other toxic substances, and the environment friendliness of the oriented structural board is effectively promoted.