Plywood and building templates, play an important role in the construction engineering. Compared with natural lumber, plywood with high utilization rate of wood, dimension stability, small deformation, standard scale is big, rich appearance decoration, mechanical processing performance is good wait for an advantage, it is widely used in furniture, wooden doors and Windows, wooden handicrafts, packaging manufacturing; Dado, condole top, decorate line such as interior decoration decorate material; And transport internal facade decoration such as category, is a kind of important indoor decoration decoration and furniture manufacturing materials.
In order to make full use of forest resources reasonably development construction plywood production, achieve material do its use, the new national standards in China (draft) for according to the usage of glue pull, to make the plywood classification, a kind of plywood for resistance to climate, boiling water plywood, send a durable, high temperature resistant, can the advantages of steam treatment; 2 kinds of plywood for water resistant plywood, can dip in cold water and hot water immersion, short time Three kinds of plywood for moisture resistant plywood, can short time dipping in cold water, suitable for room temperature. Used for furniture and general construction purposes; Four types of plywood to be less resistant to moisture plywood, under normal use indoors, general use plywood material have ju wood, northeast China ash, birch, basswood, elm, cypress, etc.
Plywood has all the advantages of the natural lumber, such as light density, high strength, beautiful texture, insulation, etc., and can make up for the natural wood natural produce some defects such as she, wide and large deformation, and vertical and horizontal mechanical differences such as defects. Plywood is no sawdust, every 2.2 to 2.2 cubic meters of logs can produce 1 cubic meters of plywood, alternative 5 cubic meters of logs into plank is applied, and each production 1 cubic meters of plywood products, also can happen leftovers, 1.2 to 1.5 cubic meters, it is the production of medium density fiberboard and particleboard better quality.