The used for bottom plate of container composite floor board
Technical field
Patent of the present invention relates to a kind of composite floor board, relates in particular to a kind of composite floor board for container bottom board.
Background technology
Container bottom board is one of three large critical pieces of container, is mainly used in bearing goods, so its intensity is had to higher requirement.Many uses Southeast Asia tropical hard wood was produced in the past, but the pressure along with exhaustion and the environmental protection of resource, increasing material, as bamboo wood, particieboard, fiberboard etc. will be applied to the production of container floor, because bamboo processing efficiency is not high, stock utilization is low, cause that the floor production cost is high, unstable properties.Particieboard, fiberboard will be the ideal materials of container floor because its production material is abundant, production efficiency is high, cost is low, in current research, have particieboard, fiberboard are positioned over to centre, have particieboard, fiberboard are positioned over to the structure that there is 1~3 layer of veneer both sides, centre, but, due to the performance deficiency of particieboard, fiberboard, be difficult to really meet the requirement of container.
According to the multi-layer compound structure theory, container floor in use mid portion mainly bears shear stress, instructions for use central point peak shear strength by container floor need to be greater than 3.4MPA, the inventor finds by test, place particieboard, fiberboard etc. in upper certain limit of ground plate thickness direction, floor intensity significantly descends, can not meet the container floor instructions for use, only in mid portion certain thickness scope, place glued board, floor intensity could meet the container instructions for use.
Summary of the invention
The problem that patent of the present invention solves is, for present particieboard, fiberboard, is used in the low problem of intensity in container floor, provide that a kind of production technology is simple, stable performance meet the composite floor board that container bottom board requires.
The technical solution used in the present invention is: a kind of used for bottom plate of container composite floor board, by the surface layer of arranging from top to bottom, upper central core, intermediate layer, lower central core, bottom assembly gummed, formed, wherein, described surface layer and bottom are respectively the glued board that thickness is greater than 2 millimeters, described intermediate layer is the glued board that thickness is greater than 7.5 millimeters, and described upper central core, lower central core are that thickness is not more than the particieboard of 8.3 millimeters or/and fiberboard.
Described used for bottom plate of container composite floor board, wherein, described surface layer, intermediate layer, bottom are respectively a kind of in wooden plywood, bamboo plywood, bamboo wood composite veneer.
Described used for bottom plate of container composite floor board, wherein, described upper central core, lower central core are respectively a kind of in particieboard, fiberboard.
Described used for bottom plate of container composite floor board, wherein, described particieboard is oriented wood chipboard.
Described used for bottom plate of container composite floor board, wherein, described fiberboard is medium density fibre board (MDF) or high density fiberboard.
Described used for bottom plate of container composite floor board, wherein, described surface layer outer surface also is provided with coating layer, a kind of in the nonwoven that described coating layer is melamine modified urea-formaldehyde glue dipping, glass fabric, brown paper; The thickness of described coating layer is 0.3mm.
Compared with prior art, used for bottom plate of container composite floor board of the present invention, have the following advantages: used for bottom plate of container composite floor board of the present invention, owing in mid portion certain thickness scope, placing glued board, rational in infrastructure, technique is simple, material is abundant, intensity is high, meets the container floor instructions for use.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is described in further detail.
The first example structure schematic diagram that Fig. 1 is used for bottom plate of container composite floor board of the present invention.
The second example structure schematic diagram that Fig. 2 is used for bottom plate of container composite floor board of the present invention.
The third example structure schematic diagram that Fig. 3 is used for bottom plate of container composite floor board of the present invention.
The 4th kind of example structure schematic diagram that Fig. 4 is used for bottom plate of container composite floor board of the present invention.
The specific embodiment
Embodiment 1:As shown in Figure 1, a kind of used for bottom plate of container composite floor board, formed by the surface layer 1 of arranging from top to bottom, upper central core 2, intermediate layer 3, lower central core 4, bottom 5 assembly gummeds.Wherein, the wooden plywood that surface layer 1, bottom 5 are thick 2.5 millimeters, the bamboo plywood that intermediate layer 3 is thick 10 millimeters, the particieboard that upper intermediate layer 2, lower intermediate layer 4 are thick 6.5 millimeters.
Embodiment 2:As shown in Figure 2, a kind of used for bottom plate of container composite floor board, formed by the surface layer 1 of arranging from top to bottom, upper central core 2, intermediate layer 3, lower central core 4, bottom 5 assembly gummeds.Wherein, the bamboo plywood that surface layer 1 is thick 2.2 millimeters, the wooden plywood that bottom 5 is thick 2.2 millimeters, the wooden plywood that intermediate layer is thick 9.6 millimeters, the oriented wood chipboard that the fiberboard that upper intermediate layer 2 is thick 7 millimeters, lower intermediate layer 4 are thick 7 millimeters.
Embodiment 3:As shown in Figure 3, a kind of used for bottom plate of container composite floor board, formed by the surface layer 1 of arranging from top to bottom, upper central core 2, intermediate layer 3, lower central core 4, bottom 5 assembly gummeds.Wherein, the wooden plywood that surface layer 1, bottom 5 are thick 2.8 millimeters, the bamboo plywood that intermediate layer is thick 7.8 millimeters, upper intermediate layer 2, lower intermediate layer 4 are 7.3 millimeters fiberboards.
Embodiment 4:As shown in Figure 4, a kind of used for bottom plate of container composite floor board, formed by the surface layer 1 of arranging from top to bottom, upper central core 2, intermediate layer 3, lower central core 4, bottom 5 assembly gummeds.Wherein, the bamboo plywood that the wood plywood that surface layer 1 is thick 2.1 millimeters, bottom 5 are thick 2.1 millimeters, intermediate layer is thick 8.0 millimeters wooden plywoods, upper intermediate layer 2 is that thick 7.9 millimeters oriented wood chipboards, lower intermediate layer 4 are thick 7.9 millimeters fiberboards.
In above embodiment, also being compounded with a layer thickness at the outer surface of surface layer 1 is 0.3mm coating layer 6, a kind of in the nonwoven that coating layer is the melamine modified urea-formaldehyde glue dipping, glass fabric, brown paper.
The assemble pattern of above embodiment, be thickness and the intensity needs according to the container glued board, through experiment repeatedly, draws.
Wherein, for meeting the requirement for anticorrosion of container bottom board, add in glue and meet the anticorrisive agent that AQIS requires.
Used for bottom plate of container composite floor board manufacture craft of the present invention is simply described as follows: main manufacture craft mainly comprises: the steps such as bamboo curtain splint is made, the making of surface coating layer, group embryo, hot pressing, cutting edge sanding, mortise check, check warehouse-in.
Carry out assembly, thermocompression forming according to the composite floor board assemble pattern of embodiment 1 to embodiment 4, technological parameter is: unit pressure 1.8MPa, 40 minutes time, 140 ℃ of temperature.
Technique after the hot pressing of group embryo is that cutting edge sanding, mortise check, check warehouse-in etc. are consistent with the conventional veneer boards processing technology, does not repeat them here.
The test detection performance that is below embodiment 1 to 4 gathers.
From above experimental data, can find out, adopt the used for bottom plate of container composite floor board of the embodiment of the present invention 1 to 4 structure, the patent MOR that its MOR is all 201120083556.3 than the patent No. is high.Reason as mentioned before, used for bottom plate of container composite floor board of the present invention, owing in mid portion certain thickness scope, placing glued board, rational in infrastructure, technique is simple, material is abundant, intensity is high, meets the container floor instructions for use.
Foregoing; it is only preferred embodiment of the present invention; not for limiting embodiment of the present invention; those of ordinary skills are according to main design of the present invention and spirit; can carry out very easily corresponding flexible or modification, therefore protection scope of the present invention should be as the criterion with the desired protection domain of claims.