Application and quality requirements of bamboo flo

2022-07-22
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Bamboo floor is a kind of high-grade floor decoration material, which has been popular in Europe, America, Southeast Asia and the Middle East more than ten years ago. China is the main producer of bamboo flooring, and its products are sold all over the world

I. characteristics of bamboo processing Flooring

compared with wood, bamboo as a raw material for flooring has many characteristics, the main advantages and disadvantages are as follows:

1. Advantages

(1) good texture and texture. Bamboo has a fine organizational structure, hard material, good elasticity, comfortable foot feel, and natural and generous decoration

(2) excellent physical and mechanical properties. Bamboo has small dry shrinkage and wet expansion, high dimensional stability, and is not easy to deform and crack. At the same time, bamboo has higher mechanical strength and better wear resistance than wood. Therefore, the floor made of bamboo has high strength and wear resistance, and the change of ambient temperature and humidity has little effect on it

(3) unique decoration. Bamboo has elegant color and small color difference, which is one of the biggest and most rare advantages of bamboo. In addition, the texture of bamboo is straight and regular, and there are dotted radioactive patterns on the bamboo knots, which has special decoration. Therefore, the decorative effect of bamboo flooring on the ground is quite different from that of wood flooring

2. Disadvantages

(1) poor processability of materials. The bamboo is hollow and multi jointed, and the head and tail materials and diameter classes change greatly. From the cross-section, the skin is smooth and hydrophobic, and it is not easy to glue. The bamboo yellow property of the inner wall is brittle and hard, and the strength is poor, so it is not easy to glue. These have caused great difficulties in the processing of bamboo flooring, thereby increasing the cost of products

(2) the utilization rate of materials is low and the product price is high. Due to the special structure of bamboo, many parts need to be removed in processing, and the utilization rate of bamboo is often only 20— About 30%. In addition, bamboo flooring has certain requirements for the age of bamboo, which needs to reach 3— For more than 4 years, the source of raw materials is limited to a certain extent

(3) bamboo has a high content of carbohydrates, low sugar and low esters, which are easy to mold and worm eaten. Special treatment is often required in processing, which also increases the cost of products

according to the above introduction, it can be seen that bamboo floor is a good floor decoration material, but due to the high processing cost, the price of the floor remains at a high level. This is also one of the reasons why bamboo flooring in China has been mainly exported for many years, and it is difficult to popularize in the domestic market

II. Variety and structure of bamboo flooring

there are many kinds of bamboo flooring developed in recent years, which can be divided into the following types according to their structures

1. Three layers of bamboo flooring. Bamboo is processed into 4-mdash; For 6mm bamboo chips, place high-quality bamboo chips on the surface of the floor, and those with poor quality on the middle and bottom floors of the floor. The three layers of bamboo chips are assembled in the same direction, and then tenoned and grooved to form the floor after hot pressing, gluing and edge planing. When assembling the blank, the bamboo green surfaces of the surface and bottom bamboo pieces face the outward surface, and the bamboo green surfaces of the middle bamboo pieces are alternately arranged up and down, so that the natural stress formed in the growth of bamboo can be partially offset and the deformation of the plate can be reduced

2. Single layer bamboo strip floor. After bamboo is processed into bamboo strips, it is glued together laterally or connected into plates in other ways. When glued together or connected, the bamboo green face the bamboo green face, and the bamboo yellow face the bamboo yellow face, so that the materials form a symmetrical distribution, reduce the stress of the plates, and avoid cracking and deformation

3. Bamboo chip bamboo strip composite floor. The middle layer is a three-layer structural bamboo floor made of bamboo strips made of lateral glue and glued with bamboo pieces up and down. When assembling the green bamboo, the yellow side of the bamboo is also arranged according to the above structure, so as to improve the dimensional stability of the floor

4. Erect bamboo parquet floor. The bamboo is processed into bamboo strips with different geometric shapes, such as square, parallelogram, rhombic, triangle, etc., and then the side is glued into a column, which is processed into a square column and then cut into a square bamboo floor

5. Bamboo green floor. The bamboo green surface is used as a decorative surface because of its wear resistance and hydrophobicity. First process the three sides of the bamboo into a plane, leaving the bamboo green surface. Then glue the bamboo pieces to the side of the board, and then saw the board into a square with a certain specification in the way of forming a certain angle with the direction of bamboo fiber, that is, to become a bamboo green floor. It is conceivable that the surface of bamboo green floor is composed of regular multiple curved surfaces, which has a three-dimensional effect

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