First, the main material selection of sports wood floor
The main materials of sports wood floor are wood floor surface layer, coarse floor layer, keel (bent frame), auxiliary keel, cushion block and so on. In addition to the bamboo floor, the surface material should have good elasticity, strength and hardness and beautiful patterns; The rough floor, keel and auxiliary keel should have good corrosion resistance, nail holding power and impact resistance.
Second, the surface material selection
1, type of substance. The main materials of the surface layer of sports wood floor are maple, oak, beech, pine, willow and so on.
2. Appearance quality. It shall comply with the first-class regulations in Table 1 GB/T1Technical Conditions for Solid Wood Flooring.
3. Specifications and dimensions. Length ≥300mmv, width 50~ 150mm, thickness 22 and 24 mm According to experience, the length of solid wood floor is generally an integer multiple of the main keel spacing, so that the joints can fall on the main keel when paving; The width of solid wood floor should be narrow but not wide. Specifications and dimensions can also be determined through consultation between the supply and demand sides.
4. Machining accuracy. It shall comply with Table 2 in GB/T15036.1-2001. The absolute value of the difference between the nominal thickness and the average thickness of the uncoated floor shall be ≤0.3m, and the difference between the maximum thickness and the minimum thickness shall be ≤ 0.4mm. ..
Third, the choice of raw materials for floor and keel layer.
The selection of raw floor, keel and auxiliary keel materials is mainly based on the cell structure of tree species and the physical and mechanical indexes of wood. The results show that the resin channel content, flexural strength, flexural modulus, transverse compressive strength, impact toughness and hardness of Larix olgensis and Larix gmelinii are better than those of Korean pine, Korean pine and stinky fir. Therefore, Larix olgensis and Larix olgensis are the first choice for the rough floor, keel and auxiliary keel of sports wood flooring. Its quality grade should meet the requirements of first-class wood in GB/T 153- 1995 Coniferous Sawn Wood.