2 Wood floor market demand and production materials
China's wood flooring has great market potential. This year, Zheng Yijun, deputy director of the Ministry of Construction, pointed out in the article "The Status Quo and Development of China's Construction Market" that from 991 to 997, more than 1.7 billion m2 of new urban houses were built, and new urban houses were built in 1 996-2000. Billion m2. By 2000, China's urbanization level will reach 35%. By 2010, China's urbanization level will reach 45%. According to the prediction of relevant departments, from now to 2010, China's cities and towns will build 4 billion m2 of new houses, which will have 300-400 million m2 per year, which does not include some public welfare buildings such as hotels and restaurants. Every year, the urban residential area is decorated with 60% of wood flooring, and wooden flooring is also required to be 1.8 to 2.4 billion m2. For example, the wooden floor parts required for buildings such as hotels and restaurants and the limitation of the use of stone plates such as granite to limit the indoor auxiliary construction also increase the possibility of using wooden floors, so that the market potential of wooden floors is even more impressive.
Most of China's solid wood flooring is made of natural broad-leaved forest and medium-high-grade broad-leaved forest wood. At present, China is implementing natural forest protection projects. With the full implementation of this project, domestic natural forest timber, especially medium and high-grade broad-leaved forest timber, will be prohibited from logging. According to relevant information, the state stocks 4.5 million m3 of timber, which can only be used for 1 999 years. At the same time as the implementation of natural forest protection projects, the state implements a policy of vigorously developing plantation forests and imported timber, and changes in the structure of raw materials will inevitably lead to changes in product varieties and structures. Therefore, many people of insight and media have now proposed that the types of wood flooring should be changed. The development of laminate flooring and solid wood composite flooring should be encouraged by the state, and the production of solid wood flooring should be restricted from small enterprises and prohibited from being restricted. . Moreover, bamboo and wood composite flooring is being developed.
3 parquet
3. 1 parquet
Solid wood composite flooring (such as three-layer solid wood composite flooring) is composed of three kinds of wood glued together. The product specifications are generally 90 0 to 2 2 0 0 mm, width 1 2 0 to 2 1 0 mm, thickness 14 to 2 4 mm. (Generally 1 4mm). Slots or tongues are formed at the ends and sides of the floorboard, and UV-cured UV lacquer is applied.
The three-layer solid wood composite floor is formed by vertically laminating the solid wood surface board, the core layer board and the bottom board. The surface layer is spliced ​​with a length of 180 to 50 mm, a width of 40 to 80 mm, and a thickness of 4 mm to form a length of 90 0 to 200 mm. The core layer is made of a medium-soft material (pine, fir, yang, etc.) with a width of 30 to 50 mm and a thickness of 9 mm. The bottom plate adopts a rotary-cut veneer with a thickness of 2 to 2. 5 mm, and the length and width are the same as the surface layer. Because the floor is a cross-layer structure, it is very hard, and the distortion, bending, shrinkage and swelling due to humidity changes are much less than that of solid wood flooring.
The hardwood species used for the surface layer of the floor are paralyzed, beech, ash, eucalyptus, birch, etc. The raw materials of the core layer and the bottom layer are not strict, and low-cost softwood or hardwood (such as poplar) can be used. )Wait. In this way, the high-grade hardwood (4mm thick) used in the three-layer solid wood composite floor saves nearly 80% of the high-grade hardwood than the high-grade hardwood (18mm thick), and at the same time, the low-cost needle-leafwood material is fully obtained. use.
The third-generation products of solid wood composite floor production equipment have been used to produce three-layer structural solid wood composite floor with steam hot-pressing machine and medium-term hot oil hot pressing machine. Now, five-layer structural solid wood composite floor is produced by high-frequency hot press. There are also six-layered parquet.
3. 2 bamboo composite flooring
Bamboo-wood composite flooring is composed of surface bamboo and bottom wood. The bamboo chips are bonded to the bamboo veneer by urethane adhesive bonding, and after being planed, they are glued with wood plywood or wood for cold pressing, and the side and end faces are made into gutters or tongues. Floor block specifications (length, width, thickness): 90 3 × 2 95 × 1 6 mm. The surface layer of bamboo is 4 to 6 mm thick, and the bottom layer can be made of plywood, fir or other soft and wide material, and the thickness is 12 to 15 mm. Bamboo-wood composite flooring has the characteristics of delicate and elegant, simple and natural, tight and durable. It is a high-grade flooring product that is more popular in the market. Because the surface of the floor is bamboo, and the bottom layer is not high on wood, and only 12 to 15 mm thick, compared with the solid wood floor produced by high-grade hardwood, it can greatly save high-grade wood. 4 Production of solid wood composite and bamboo composite flooring with artificial timber and bamboo
China's wood flooring has great market potential. This year, Zheng Yijun, deputy director of the Ministry of Construction, pointed out in the article "The Status Quo and Development of China's Construction Market" that from 991 to 997, more than 1.7 billion m2 of new urban houses were built, and new urban houses were built in 1 996-2000. Billion m2. By 2000, China's urbanization level will reach 35%. By 2010, China's urbanization level will reach 45%. According to the prediction of relevant departments, from now to 2010, China's cities and towns will build 4 billion m2 of new houses, which will have 300-400 million m2 per year, which does not include some public welfare buildings such as hotels and restaurants. Every year, the urban residential area is decorated with 60% of wood flooring, and wooden flooring is also required to be 1.8 to 2.4 billion m2. For example, the wooden floor parts required for buildings such as hotels and restaurants and the limitation of the use of stone plates such as granite to limit the indoor auxiliary construction also increase the possibility of using wooden floors, so that the market potential of wooden floors is even more impressive.
Most of China's solid wood flooring is made of natural broad-leaved forest and medium-high-grade broad-leaved forest wood. At present, China is implementing natural forest protection projects. With the full implementation of this project, domestic natural forest timber, especially medium and high-grade broad-leaved forest timber, will be prohibited from logging. According to relevant information, the state stocks 4.5 million m3 of timber, which can only be used for 1 999 years. At the same time as the implementation of natural forest protection projects, the state implements a policy of vigorously developing plantation forests and imported timber, and changes in the structure of raw materials will inevitably lead to changes in product varieties and structures. Therefore, many people of insight and media have now proposed that the types of wood flooring should be changed. The development of laminate flooring and solid wood composite flooring should be encouraged by the state, and the production of solid wood flooring should be restricted from small enterprises and prohibited from being restricted. . Moreover, bamboo and wood composite flooring is being developed.
3 parquet
3. 1 parquet
Solid wood composite flooring (such as three-layer solid wood composite flooring) is composed of three kinds of wood glued together. The product specifications are generally 90 0 to 2 2 0 0 mm, width 1 2 0 to 2 1 0 mm, thickness 14 to 2 4 mm. (Generally 1 4mm). Slots or tongues are formed at the ends and sides of the floorboard, and UV-cured UV lacquer is applied.
The three-layer solid wood composite floor is formed by vertically laminating the solid wood surface board, the core layer board and the bottom board. The surface layer is spliced ​​with a length of 180 to 50 mm, a width of 40 to 80 mm, and a thickness of 4 mm to form a length of 90 0 to 200 mm. The core layer is made of a medium-soft material (pine, fir, yang, etc.) with a width of 30 to 50 mm and a thickness of 9 mm. The bottom plate adopts a rotary-cut veneer with a thickness of 2 to 2. 5 mm, and the length and width are the same as the surface layer. Because the floor is a cross-layer structure, it is very hard, and the distortion, bending, shrinkage and swelling due to humidity changes are much less than that of solid wood flooring.
The hardwood species used for the surface layer of the floor are paralyzed, beech, ash, eucalyptus, birch, etc. The raw materials of the core layer and the bottom layer are not strict, and low-cost softwood or hardwood (such as poplar) can be used. )Wait. In this way, the high-grade hardwood (4mm thick) used in the three-layer solid wood composite floor saves nearly 80% of the high-grade hardwood than the high-grade hardwood (18mm thick), and at the same time, the low-cost needle-leafwood material is fully obtained. use.
The third-generation products of solid wood composite floor production equipment have been used to produce three-layer structural solid wood composite floor with steam hot-pressing machine and medium-term hot oil hot pressing machine. Now, five-layer structural solid wood composite floor is produced by high-frequency hot press. There are also six-layered parquet.
3. 2 bamboo composite flooring
Bamboo-wood composite flooring is composed of surface bamboo and bottom wood. The bamboo chips are bonded to the bamboo veneer by urethane adhesive bonding, and after being planed, they are glued with wood plywood or wood for cold pressing, and the side and end faces are made into gutters or tongues. Floor block specifications (length, width, thickness): 90 3 × 2 95 × 1 6 mm. The surface layer of bamboo is 4 to 6 mm thick, and the bottom layer can be made of plywood, fir or other soft and wide material, and the thickness is 12 to 15 mm. Bamboo-wood composite flooring has the characteristics of delicate and elegant, simple and natural, tight and durable. It is a high-grade flooring product that is more popular in the market. Because the surface of the floor is bamboo, and the bottom layer is not high on wood, and only 12 to 15 mm thick, compared with the solid wood floor produced by high-grade hardwood, it can greatly save high-grade wood. 4 Production of solid wood composite and bamboo composite flooring with artificial timber and bamboo
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