Knowledge points about wooden based board and plywood, series seven. Pre-pressing repair secondary hot pressing processProcess: single gluing of medium plate → two medium plate and core plate group blank…
Knowledge points about wooden based board and plywood, series six. 51. The term "old third board" refers to plywood, particleboard, and hard fiberboard. The term "new third board" refers to…
Knowledge points about wooden based board and plywood, series five. Briefly describe the pollution of the plywood industry.Air pollution: (1) exhaust gas from the veneer dryer (2) harmful gas produced…
Knowledge points about plywood, series four. What are the methods of liquid sizing plywood veneer?(1) Roller sizing: simple operation, low efficiency, not easy to automate.(2) glue: uniform sizing, good quality,…
Knowledge points about plywood, series three. Briefly describe the measures to improve the output rate of single boards okoume plywood.(1) Reduce the diameter of wood core. (Can use double card…
Briefly describe the conditions of adhesives in wood-based plywood sheet production.(1) The adhesive should have enough fluidity to wet the solid surface well. Good wettability, to form a firm combination,…