CN2666664Y

CN2666664Y - Bamboo composite board

Info

Publication number: CN2666664Y
Application number: CN 03207248
Authority: CN
Inventors: 匡学义
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-06
Filing date: 2003-08-06
Publication date: 2004-12-29
Anticipated expiration: 2013-08-06

Abstract

The utility model relates to a bamboo composite board which is a sheet material using green bamboo as the main structure. The existing bamboo plywood made of bamboo wood doesn't use green bamboo with high strength and good wear-resistance, and the long-term natural evolution optimizing structure of the bamboo wood is disturbed and recombined. The utility model makes full use of green bamboo [1] which is arranged on the surface of the surface layer of the sheet material, a bamboo tube which is flattened into a bamboo strip with uniform width is arranged on the surface layer of the sheet material, and a core layer is made of ordinary materials; namely, the characteristics that the outer wall of the green bamboo [1] has the highest strength and the strength is weakened gradually toward the inner layer of tabasheer [2] corresponds with the laws that the stress of the surface is the maximal and the stress is weakened gradually toward the core layer when the sheet material is load-bearing. The long-term natural optimizing characteristics of the green bamboo and the tabasheer are utilized fully and reasonably but not disturbed and recombined so as to provide the sheet material with the highest availability of bamboo wood, high strength, glue saving, low cost, wear resistance and decoration concealed strips. The bamboo composite board is also widely used in the fields of building, building materials, furniture, traffic, etc.

Description

The surf green composite plate

Affiliated technical field the utility model relates to a kind of artificial bamboo board, relates in particular to a kind of bamboo matter high-strength wearable composite plate.It is applicable to industries such as building, building materials, furniture, traffic.

The background technology bamboo wood makes China's artificial bamboo board obtain swift and violent development in nearly decades because but fibre strength is given birth to continuous utilization, environmental protection than timber height, speed.It is tubular, thin-walled, hollow and be not easy to make difficulties such as large format wood-based plate that also there is structure in bamboo wood.Present various drawing materials from bamboo wood is designed to the artificial bamboo board of various structures, all fails to reach the highest utilization rate of bamboo, maximum intensity.

At present, the bamboo matter template that extensive use in the architectural engineering is arranged in artificial bamboo board, in the industry standard LY/T1574-2000 of the State Administration of Forestry, from bamboo wood, get bamboo chip, bamboo and slight, weave into the various bamboo matter templates that assembly is produced after the bamboo curtain splint, Zhu Seats structure, influence timber intensity in order to alleviate surf green part adhesive property difference in process of production, just all be to make template after surf green is partly removed.The experiment test result is: surf green partly is the part that bamboo fiber is the finest and close, structural strength is the highest.Going green grass or young crops is expensively to take a lot of work and lost the most valuable part of bamboo wood.

The standard LY/1055-91 of Ministry of Forestry automobile bodies base plate bamboo offset plate, this plate are got the surf green of shooting off earlier behind the bamboo chip in bamboo wood, organize the embryo gummed again, and limit the residual content of surf green in standard.

Bamboo is to adapt to the bending of wind resistance power in long-term natural evolvement, and structure obtains reasonably optimizing.Along the bamboo wood section radially, the outer intensity of surf green is the highest, take second place in the middle level, internal layer is the most weak.About 4: 2: 1 of skin, middle level, its mean intensity ratio of internal layer.Yet existing bamboo offset plate has been upset reorganization to this optimum optimization structure of bamboo wood when drawing materials when plate construction designs, the intensity of therefore rare optimum rate of utilization to bamboo wood, maximum.

Chinese patent CN2041243U discloses a kind of surf green glued board, has utilized surf green, but plate construction design is earlier surf green to be cutd open into the blue or green thin bamboo strip to be bonded on the base material again, takes a lot of work and lowers intensity, only does decorative panel and uses.Chinese patent CN2050794U has also utilized surf green, but surf green design in the stressed maximum of sheet material, need most wear-resisting surface, utilize but surf green is included in the bamboo wood.

Chinese patent CN2389194Y is with surf green bar planing, wears many surf greens of string with bamboo nail again and is linked to be integral body and sticks at base material, makes the engineering structure and uses timber intensity poor, is fit to do the floor.Chinese patent CN2210076Y discloses with the bamboo chip that keeps the original cambered surface of surf green and has been assembled into decorative panel, be utilize have crest, trough, waveform surf green surface do decorative panel.

The summary of the invention the purpose of this utility model, be to overcome the deficiency that prior art exists, be to avoid " lose the most valuable surf green part when producing the bamboo offset plate and upset bamboo wood and optimize the optimum performance of mechanical structure naturally and reach material and recombinate " these weak points.

Solve these deficiencies, crucial technical scheme design at the surf green composite plate structure.The utility model design principle is: stressed rule when the long-term intensity distributions rule of optimizing naturally of surf green tabasheer is used with sheet material, material most its with design consistent realization of trying one's best.The design of the utility model surf green composite plate: the surf green composite plate is connected and is formed by sheet surface layer, sandwich layer (or base plate).The one, surf green [1] design the finest and close the bamboo outer layer fiber, that structural strength is the highest is on this plate sheet surface layer surface; The 2nd, bamboo is radially weakened to internal layer intensity gradually by skin, also be to weaken gradually to the center by the surface when sheet material is stressed by the surperficial tension and compression stress maximum that moment of flexure produces, the utility model still keeps this intensity distributions state of optimizing naturally of bamboo after Bamboo flattening, do not upset reorganization, all utilize the dull and stereotyped basic of interior generate comprising surf green [1] tabasheer [2], and its design on the top layer of surf green composite plate, consistent with the stressed trend of sheet material; The 3rd, sheet material is stressed at neutral line to be minimum, is that sandwich layer [3] can be provided with general material near the sheet material neutral line therefore, can be bamboo and wood materials, bamboo wood crushed straw aggregate, cement composite material etc.This structure also can not add bonding agent and be connected into the surf green composite plate with pin, screw, key mechanical attachment mode with organic adhesive or the bonding surf green composite plate that solidify to form of inorganic adhesive.Two surf green sheet surface layers are two-sided surf green composite plate with compound connection of intermediate core layer, and single face surf green sheet surface layer is a single face surf green composite plate with bottom plate combined the connection.The concrete structure example is seen accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8.

The utility model beneficial effect is: not only made full use of valuable surf green and bamboo wood optimize structure naturally optkmal characteristics, but also need not take a lot of work and expensive bamboo wood be upset reorganization, in the place of the stressed maximum of sheet material the bamboo wood that bamboo fibre density is big, structural strength is high is set, at stressed gradually few place the bamboo wood that bamboo fibre density is gradually little, structural strength is gradually low is set, reasonable with the abundant structural strength of material, therefore can provide that a kind of utilization rate of bamboo is the highest, intensity is high, economize glue, saving working hour energy consumption, cost are low, have surf green wearing layer, long having concurrently of life-span to decorate latent bar Multifucntional surf green composite plate.

This plate extensively is useful for the field based on the structure plate, as new products such as building template, wallboard, floor, environmental protection floor, roof boarding, door and window, automobile-used base plate, container bottom board, furniture-plates, bed boards.

Description of drawings further specifies the utility model below in conjunction with drawings and Examples.

Fig. 1, Fig. 2 are first embodiment of the utility model, flattening bamboo chip wedge gap connected structure schematic diagram.

Fig. 3, Fig. 4 are that the connected structure schematic diagram is scabbled in second embodiment of the utility model, flattening bamboo chip both sides.

Fig. 5, Fig. 6 are the 3rd embodiment of the utility model, band base plate single face surf green composite plate structure schematic diagram.

Fig. 7, Fig. 8 are the single face surf green composite plate structure schematic diagrames of one of the 4th embodiment of the utility model, mechanical attachment mode.[1] surf green, [2] tabasheer, [3] sandwich layer, [4] base plate, [5] lumps of wood connector, [6] screw, pin or key mechanical links among the figure.

The specific embodiment is more detailed description concrete manufacture craft embodiment of the present utility model in conjunction with the accompanying drawings: with the former bamboo section of being sawn into, be split into sheet, remove interior acromere, ward off split even small pieces, through the poach anti-mould and anti-moth handle, hot pressing flattens, typing drying, chamfered edge, applying glue, and the core assembly, gives pressure, hot pressing, curing, clipping edge and form the surf green composite plate.Can make single or double surf green composite plate.

When feature of the present utility model is that also Bamboo flattening becomes the even bamboo chip of width, do not keep the original cambered surface of surf green, but hot pressing makes the surf green sheet become the plane substantially after flattening the typing drying, adapts to multiple " structural applications is main " sheet material requirement, leaves the latent naturally bar of trace between the surf green sheet.When flattening typing, the surf green behind the sliver is that part links to each other, and flattening between bamboo chip can be that wedge gap links to each other as Fig. 1, Fig. 2, also can scabble the back to the bamboo chip both sides and link to each other as Fig. 3, Fig. 4.The tabasheer that flattens the bamboo chip bottom surface keeps, and also can part scabble by thickness difference.

Claims

1, a kind of surf green composite plate, connect and form by sheet surface layer, sandwich layer (or base plate), its architectural feature is: bamboo is got and is shaped as flat, the even bamboo chip of width and is designed to this plate sheet surface layer, bamboo strip [1] design on the surface of sheet surface layer, tabasheer [2] is interior, sheet surface layer and sandwich layer [3] be compound connect constitute two-sided surf green composite plate, with the bottom plate combined formation single face surf green composite plate that connects.

2, a kind of surf green composite plate according to claim 1 is characterized in that: described sandwich layer [3] can be a kind of of the sheet material that forms of bamboo and wood materials, bamboo wood crushed straw aggregate, cement composite material.

3, a kind of surf green composite plate according to claim 1 is characterized in that: between flat, the even bamboo chip of width can be that the wedge gap structure constitutes sheet surface layer, also can be that the contacted structure of bamboo chip side flat face constitutes sheet surface layer.