The production method of plywood is generally divided into three types: wet heat method, dry cooling method and dry heat method. Dry and wet means that the veneer used in the pressing is a dry veneer or a wet veneer. Cold and hot refers to whether it is hot-pressed or cold-pressed. The disadvantage of the wet heat production is that due to the high moisture content of the veneer, the hot pressing time is long, the productivity is low, and the plywood is dried after the hot pressing. Because it is a plate produced by the damp heat method, the internal stress is large, it is easy to warp and deform, and the bonding strength is low. The disadvantage of dry cold production is that the plywood production cycle is long due to the long pressurization time. More suitable for the production of small businesses. Dry-heat production: It is dried with a rotary-cut veneer, and the veneer is coated with a moisture content of 8-12%, and is pressed into a plate in a hot press. The production characteristics of this method are: Due to the high temperature bonding, the time is short, the output is large, the bonding strength is high, and the product quality is good. The board surface is smooth and flat and not easily deformed. Suitable for all types of adhesive production. This method overcomes the shortcomings of the damp heat method and the dry cooling method. The production is more flexible, and large, medium and small enterprises can produce, and the products produced are more suitable for the needs of the market. Therefore, the plywood produced by various enterprises at home and abroad is usually produced by dry heat method. Automatic Sensor Sanitizer Dispenser
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