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Laminated sheet material and method for making same

A manufacturing method and veneer technology, which is applied in the jointing of wooden veneers, veneer presses, manufacturing tools, etc., can solve the problem of no laminated plates, achieve the effect of suppressing warping and bending, and saving forest resources

Inactive Publication Date: 2004-12-08
TOYO PLYWOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, light and soft materials such as poplar are easily warped or bent, so there is no material for laminated boards.

Method used

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  • Laminated sheet material and method for making same
  • Laminated sheet material and method for making same
  • Laminated sheet material and method for making same

Examples

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Embodiment Construction

[0026] figure 1 A method of manufacturing a laminated sheet according to an embodiment of the present invention is shown. This manufacturing method uses Italian poplar logs to manufacture laminated boards, and consists of cutting process, primary drying process, secondary drying process, assembly process, coating process, cold pressing process, hot pressing process, curing, and cutting. composition.

[0027] In the cutting process, the Italian garden wood is used as a woodworking lathe, and the center of both ends of the log is supported while rotating; while it is in contact with the blade, it is peeled off from the bark side of the log one by one, and processed into a thickness of 1.8mm±0.1mm. Rectangular veneer.

[0028] In a drying process, the rectangular veneer is sent into a drier to dry until the moisture content reaches 28%±3%, and is cut into a board at the outlet of the drier. Next, in the secondary drying process, the veneer is dried until the moisture content i...

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Abstract

The invention provides a laminated material 20 utilizing a light and soft material like a poplar and a method for manufacturing the same. A warp or a bend of a veneer 10 is suppressed by alternatively superposing root side ends each having a large water content ratio and branch side ends each having a small water content ratio. In a cold pressing step, pressing and pressure releasing are repeated, temporarily tightened. In a hot pressing step, pressing is conducted at a lower pressure than the pressing pressure of the cold pressing step, hence the warp or the bend of the veneer 10 is prevented more accurately, and utilization of lumber resources is efficient.

Description

technical field [0001] The present invention relates to laminated panels and methods for their manufacture. Background technique [0002] In general, laminated boards are produced by peeling off logs thinly with a woodworking lathe to form veneers, stacking the veneers so that the fiber directions of each layer are the same, and bonding them with an adhesive. Laminates are mostly used for building structural materials, building appliances, interior decoration materials such as floors, walls, and roofs, and as manufacturing materials for door frames, crossbars, and stair handrails. [0003] Conventionally, for such laminated boards, coniferous trees such as Japanese cypress, Japanese cypress, and spruce, or Japanese birch, Japanese plum, birch, walnut, speihua ash, and ash have been used. and other broad-leaved trees. [0004] At present, aspen, which is widely distributed in the temperate zone of the northern hemisphere, grows fast and can be supplied stably, and because i...

Claims

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Application Information

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IPC IPC(8): B27D1/04B27D3/00
Inventor 森一郎古桥健一
Owner TOYO PLYWOOD
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