The blockboard is a plate which is coated and heat-pressed by using natural rotary-cut veneers and solid wood panels. Structurally, it is formed by laminating the veneers on both sides of the core, and the core is a solid wood plate (or grid frame) formed by splicing the core strips (ie, wooden strips), and the core strips can be assembled by using adhesives. It can also be made without glue, and can be classified into glue blockboard and non-stick blockboard. The two sides of the core can be respectively laminated with one or two veneers, which can be classified into three layers of blockboard and five layers of blockboard. For example, the structure of the five-layer blockboard is the panel, the core board, the core and the core. Board and backboard. The process is different and the quality is different.
The production of a blockboard requires more than 30 processes. After the logs are processed into wooden boards, they must first be dried, and then restored under natural conditions. The moisture is finally controlled at 7%-13%; the restored wood boards are sliced ​​and spliced. It is made by the process of plate, brushing and pressing.
The core board processing technology of the large core board is divided into two types: machine fight and hand fight. Hand-made is to use the artificial code to put the wooden strips, the lateral stripping force of the wooden strips is small, the gap between the wooden strips is large, the stitching gap is not uniform, and the nail holding power is poor. The core of the machine core is subjected to a large pressing force, the gap is extremely small, the splicing is flat, and the bearing capacity is uniform, so the machine plate has a compact structure and is not easily deformed for long-term use. Different materials and different quality.
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