CN1063070A

CN1063070A - Pine laminated bending wood and manufacture method thereof

Info

Publication number: CN1063070A
Application number: CN 91111780
Authority: CN
Inventors: 李立敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-12-18
Filing date: 1991-12-18
Publication date: 1992-07-29

Abstract

Pine laminated bending wood, for example pine laminated bending wood and the manufacture method thereof used of furniture and handicraft.The stock that this bending-wood adopted is the pine of path (Φ 20cm is following).The bending-wood two sides adopts the Manchurian ash veneer decorative faced, can improve the texture of bending-wood.Bending-wood inside has two layers of pine blade veneer laterally to glue together, and can weaken internal stress, and by producing after the special model hot pressing, under the prerequisite that reduces rigidity, the winding degree of product is moderate, and mouldability is stable.Its method for making is at pine glue fat, after the plasticizing rotary-cut, dries moisture content 10-15%, again brushing modified adhesive, pressurization (15kg/cm in mould then ²), by high-frequency dielectric heating, depanning after 30 minutes.

Description

Pine laminated bending wood and manufacture method thereof

The invention relates to path pine (or other time material weedtree) through degreasing, plastify, be peeled into veneer after, technology by high-frequency dielectric hot pressing (lamination) moulding, in laminated bending wood, adopt the odd number of arrayed method, that is: ground floor (surface layer), second eleventh floor (bottom) adopts Manchurian ash section veneer overlay, second to layer 6, and the 8th to the 14 layer, the 16 to the 20 layer is adopted pine longitudinal section veneer; Layer 7 and the 15 layer of employing pine blade veneer are the inventions that is applicable to furniture and handicraft bending-wood.

At present, a small amount of bending-wood that occurs adopts Manchurian ash, U.S. pine precious timbers such as (imported timbers) to make on the market, all is that bending of solid wood or longitudinal section even number are arranged, and no plasticizing process so bending-wood spare is yielding, influences product quality.

The inventor saves national first-class timber and solves the problem on deformation that bending-wood production exists in order to develop local resources, through conscientiously research, has finished the present invention finally.

The objective of the invention is in order to provide a kind of with low cost, steady quality, nothing distortion, and the bending-wood of winding degree and suitable middle and high shelves furniture of rigidity and handicraft product production.Another object of the present invention provides the method for making above-mentioned bending-wood.

When making bending-wood of the present invention, at first with degreasing pinewoods, the veneer moisture content after plasticizing, the rotary-cut dries to 10～15%, inserts pressurization (15Kg/cm in the special model after coating special-purpose modified adhesive then ²), then to open the high-frequency dielectric heater and send heat, depanning after 30 minutes so just can make gratifying bending-wood.

Each position thickness of pine laminated bending wood disposable synchronous pressurization in mould, heating are finished, and therefore, the thickness of pine veneer must be evenly, and neat when piling up, the space of pressing mold also must meet required precision.

The present invention will be described in more detail for following basis " path pine laminated bending timber structure accompanying drawing (section) ":

(1), (7) are Manchurian ash section veneer in the bending-wood section.(2), (4), (6) are pine longitudinal section veneer (5-7 layer), (3), (5) are pine blade veneer (1 layer).

Manchurian ash cut into slices veneer thick be 0.5 millimeter, as the positive and negative veneer of bending-wood, increased the texture and the aesthetic feeling of product.Pine longitudinal section veneer is thick to be 1.5 millimeters, and in the bending-wood structure, it is with two groups 5 layers, and one group 7 stacked sets up jointly, and can make that elasticity weakens, rigidity is moderate.(3), (5) pine blade veneer is thick is 1 millimeter, it is the centre that individual layer is clipped in three groups of pines section veneers, plays the reduction winding degree, reduces the effect of internal stress.In addition, owing to (3), (5) layer are the appearances of pine blade veneer cross section, increased the curve lightness and the aesthetic feeling of pine laminated bending wood section (section).

Claims

1, a kind of bending-wood is characterized in that with path pine section veneer (radially) and path pine blade veneer (broadwise), the structure division of regular odd number of arrayed.

2, the described bending-wood of claim 1, its surface is two-layer to be with the Manchurian ash veneer overlay of cutting into slices.

3, claim 1 or 2 described bending-woods, its brake forming angle＞90 °.

4, claim 2 or 3 described bending-woods, its section veneer (radially) is produced with other timber.

5, the manufacture method of bending-wood: it is characterized in that at first degreasing pinewoods, plasticizing, be peeled into veneer again, dry (moisture content 10～15%), gluing is displayed and is placed among the model, adopts high frequency heat molded again.

6, the bending-wood manufacture method of claim 5, its defatting technology is the steam ammonification.

7, the bending-wood manufacture method of claim 5, its plastifying technology are the anhydrous liquid ammonia plasticizings.

8, the bending-wood manufacture method of claim 5, its plastifying technology is that steam adds fertilizer solution.