Eco-ego group gorgeous home technology services 161000
Abstract: the opening of the Copenhagen conference in Denmark and the opening of the World Expo Shanghai show that bamboo is the best substitute for wood in the future to play a decisive role in the future. All kinds of bamboo products have been well received by consumers, bamboo office furniture market will gradually open, its R & D, production and sales ability to catch up with the pace of the times. In this paper, the present situation and development prospect of bamboo utilization, and the development and utilization of bamboo new materials were analyzed and sorted out. For example, bamboo integrated timber, bamboo restructuring material and dyeing of bamboo, composite bamboo etc.. The bamboo gluelam preparation and bamboo scrimber. So far, there are a lot of research on bamboo, there are anti-corrosion treatment, dipping, plastic, softening, grinding and so on. It is based on the research results of these methods, bamboo office furniture design and development in order to achieve industrial production.
Key words: Bamboo office furniture material properties and manufacturing technology; bamboo office furniture, texture and color
Introduction: bamboo is currently popular on the international market, the engineering timber products, and timber can be widely used in construction,
Furniture and decoration industry, increasingly by Europe and the United States and Japan and South Korea and other countries of the attention. With the increase in demand at home and abroad, in recent years, bamboo integrated timber and bamboo scrimber production development rapidly, bamboo furniture, bamboo flooring production in the industry in the proportion increased year by year. A comprehensive understanding of bamboo integrated timber and bamboo scrimber the performance, for the rational use of bamboo and expand the material application field are very important. Bamboo office furniture on the requirements of the materials mainly include mechanical properties, surface aesthetic properties, processing performance, environmental performance and economic.
Development of bamboo based materials
Furniture enterprises is not a short-term behavior, the sustainable supply of materials is the source of enterprise survival. The growing scarcity of timber resources in today, the fast-growing wood may also can not supply the growing demand, bamboo material as the material goods a has a sustained and stable supply channels. At this stage, the author in bamboo of forestry industry investigation in finished product R & D has already tended to be mature, bamboo scrimber to save material natural texture has gradually been pay attention to enterprise, development, manufacturing capacity is a step by step to strengthen, and bamboo composite due to technical and cost constraints haven't is widely used in the manufacture of industrial production and product development.
1 bamboo gluelam
Glued laminated bamboo is a new type of bamboo wood-based panel, it is by using bamboo as raw material processing into certain specifications of the rectangular bamboo, after anti-corrosion treatment (anti-corrosion, mildew and moth), drying, glue and process of blank group bonding and bamboo board material. New type glued laminated bamboo the smallest unit of bamboo; therefore, it inherits the physical and chemical properties of bamboo; at the same time, it has its own characteristics.
2 bamboo wood
Recombinant bamboo and weighing bamboo, is the small diameter bamboo grade material, the rolling rubbing processing equipment for the transverse fracture and longitudinal loose and staggered connected bamboo wire or bamboo bundle, then dried or heat treatment, sizing, blank, hot pressing and a high strength, large size, with natural bamboo texture structure of new bamboo wood-based panel. Is a new type of bamboo materials, which is developed in recent years by re organizing and strengthening the bamboo. Due to the breakthrough in the traditional cutting mode, under the premise of not destroying the bamboo fiber will be pressing bamboo bundle or bamboo sericin, greatly improving the utilization rate of bamboo, and make use of dwarf bamboo, the low-grade wood possible.
3 bamboo composite material
Due to the current theory of composite materials is not mature, to give a precise definition of the bamboo composite material is also a lack of adequate theoretical basis. It can be considered that the bamboo composite material is a kind of material which is made of bamboo material and other (or more) non bamboo material, and belongs to the natural polymer composite material. Now our country is now studying the: Bamboo inorganic composite materials research, bamboo plastic composite materials research, bamboo composite materials research, bamboo - metal composite materials research, bamboo glass composite materials research.
Two. Bamboo manufacturing process
To carry out the bamboo office furniture design, it is to be familiar with the structure of the bamboo wood substrate, in order to support the structural design of furniture. From the glued laminated bamboo and bamboo scrimber preparation process can be seen, relative to the current office furniture enterprises to use the base material, bamboo in strength, environmental protection, processing properties have great advantages.
1 bamboo gluelam preparation
Glued laminated bamboo wood basic unit is a rectangular piece of bamboo and its size is (50 ~ 100) cm*20cm* (5 ~ 6) cm, the general requirements in large diameter bamboo as raw material. At present, China's bamboo gluelam is mainly used in the production of bamboo flooring. In the production process, after rough planing, fine planning processes, such as the poor water resistance, removal of the adhesive properties of the bamboo green and tabasheer layer, large amount of cutting, utilization rate of between 35% ~ 40%, product cost is higher. Also considering bamboo easy to eat by moth, mildew and rot characteristics, in the preparation of the basic unit in the process of, the bamboo to bamboo nutrients are removed by cooking, while adding insect and preservatives. Different regions have different requirements on the products of wood color, so to carbonation, bleaching and color processing of basic unit.
The main manufacturing process of bamboo gluelam as follows:
Choose bamboo, intercept, open - rough planing, cooking, drying, carbonization, fine plane -- selection of films, glue, aging, surface plastic spell - core layer of glue fight -- core layer planing, the whole plywood -- sawing or light inspection: Inspection and repair of sand material.
Preparation of 2 bamboo recombinant
The basic unit of the recombinant bamboo is a bamboo board with fibrosis. Fibrosis of bamboo veneer is the split bamboo to bamboo, followed by fiber separation technology is formed by weaving bamboo bundle composed of reticular structure of the bamboo bundle, bamboo utilization rate as high as 90% ~ 95%. On the choice of raw materials like bamboo bamboo gluelam as strict, it can use small miscellaneous bamboo as main raw materials. Because of the special preparation method of the basic unit, the reconstituted bamboo can be used as raw material, so that the small diameter material can not be fully utilized.
The main manufacturing process of the recombinant bamboo is as follows:
Bamboo, the truncated, subdivision, to green, rolling ease, drying, dipping, drying group blank, hot pressing, recombinant bamboo
. Glulam, recombinant wood and office furniture used body engineering data at our office furniture commonly used substrate is particleboard and medium density fiberboard, requirements higher enterprises will use wood substrates such as ash, and so on. And bamboo, whether it is the use of rate, physical and mechanical properties, environmental protection are better than those of the office furniture commonly used.
General wood (fir, camphor wood, oak) utilization rate is relatively low, the comprehensive utilization rate of 48%. As can be seen from the table 2-1: the utilization of the integrated material and the recombinant material is relatively high, and the utilization of the reconstituted bamboo has reached 95%. Greatly reduced
The shortage of the pressure of the shortage of wood resources. Glued laminated bamboo not only inherits the bamboo in the compressive strength, the flexural and tensile strength advantage, with large format, high strength, good rigidity, wearable pulling and wet expansion and drying shrinkage rate is lower. In addition to the price is slightly higher, the other indicators are higher than the solid wood materials and wood based office furniture.
Also the bamboo processing performance better, bamboo integrated timber and recombination material can be cut saw, planing, mosaic, carving, drilling, sanding, assembly and surface decoration methods such as processing and bamboo bamboo no Fengbian and decorative features of the section, the chord surface and diameter surface to form the bamboo Glulam unique beauty. Bamboo beam splicing patterns also increase the art of the reorganization of bamboo. Current our country bamboo integrated timber sheet production in, the main use of the low, even non-toxic special glue (change of urea formaldehyde resin adhesive), bamboo Glulam furniture mostly plate furniture structure assembly and disassembly type structure, good manufacturability, surface coating decoration and wood surface coating similar. Bamboo reconstituted wood was larger than that of integrated material in the amount of glue.
Bamboo office furniture should be strictly follow the requirements of human engineering, the height of the class and furniture, the state has the standard. Among them, furniture, table height standard size can be 700mm, 720, 740mm, 760 mm four specifications; furniture of chair and stool of the seat surface height can be 400mm, 420mm, 440mm three specifications. In addition, the use of standard tables and chairs supporting the use of standard size, height difference should be controlled in the range of 280 to 320mm. The correct height tables and chairs should can make people keep when sitting in two basic vertical: is when both feet flat on the ground, the thigh and the calf can basically vertical. At this time, the front edge of the seat can not be compressed on the lower plane of the thigh. Second, when the arms hang down naturally, the upper arm and the small arm basically vertical, then the desktop height should just contact with the arm under the plane. This will enable people to maintain the correct posture and writing posture. National standard also stipulates the space under the desk mesa height is not less than 580mm, space width not less than 520mm. This is to ensure that people in the use of two legs can have enough space. As for the size of the sofa, the national standard should not be less than the width of a single sofa seat 480mm, the depth of the seat should be within the range of 480 to 600mm, the height of the seat surface should be in the range of 360mm to 420mm. The distance from the hanging pole to the top plate of the cabinet is 40mm to 60mm, and the distance from the bottom to the bottom of the cabinet is not less than 1350mm, and the short coat should not be less than 850mm. The depth of the wardrobe mainly consider the shoulder factors of people, generally 600mm, should not be less than 500mm. Bookcase class GB shelf layer height of not less than 220mm, otherwise, will be put into the 32 folio books. Taking into account the magazines, album and other specifications of large articles, high shelf layer generally choose 300mm to 350mm.
3 bamboo texture and color
Integrated material texture and color of bamboo strips in a different arrangement to suppress the bamboo showed sheets of different structure and appearance features. The traditional bamboo contains flat pressure and pressure in two ways; color can be divided into two carbonization and character (except late in a variety of colors of paint). So the basic bamboo gluelam pattern