Disclosed are wood preforming devices for manufacturing a crash pad for a vehicle including a real wood sheet. A wood preforming device for manufacturing a crash pad for a vehicle includes a real wood sheet includes a lower press mold comprising a debossed portion provided on a portion on which a product is formed, and a support portion configured to support an upper press mold, in response to the lower press mold and the upper press mold pressing each other, the support portion having a protrusion for fixing a real wood sheet, the upper press mold having an embossed portion corresponding to the debossed portion of the lower press mold, and a movable core provided on the debossed portion of the lower press mold and being configured to guide the real wood sheet by moving upward from the debossed portion, in response to the upper press mold moving downward.

A series type continuous automatic ENF-grade plywood production line and a production method is set forth. The production line is at least composed of three serially connected independent process units with the same processing flow, which are core initialization, thickening circulation and product setting. Each process unit at least includes the following procedures: surface sanding, gluing, automatic lay-up, constant-thickness hot pressing, board overturning and cooling, defect scanning and repairing. The thickening circulation process unit can form a ring-shaped production line through a loop formed by the above procedures, or can form a linear production line by repeatedly extending above procedures. The present disclosure has the beneficial effects that the procedures of aging and prepressing of veneers, which lead to the stagnation of production process, are omitted, and the main obstacles in the continuous and automatic production of plywood are overcome.

Disclosed is a manufacturing method of a composite panel, comprising: a providing step of providing a flexible sheet; an attaching step of forming a lamellar structure by attaching at least one lamellar board to cover the flexible sheet; and a cutting step of cutting a plurality of longitudinal grooves in the lamellar structure layer to form a plurality of lamellar strips, thereby obtaining the composite panel that is able to be bent laterally into a curved configuration.

Disclosed is a manufacturing method of a composite panel, comprising: a providing step of providing a flexible sheet; an attaching step of forming a lamellar structure by attaching at least one lamellar board to cover the flexible sheet; and a cutting step of cutting a plurality of longitudinal grooves in the lamellar structure layer to form a plurality of lamellar strips, thereby obtaining the composite panel that is able to be bent laterally into a curved configuration.

Disclosed is a method for preparing an environmentally-friendly high-strength wood composite material, which includes the following steps: S1. pulverizing wood into a wood flour, adding the wood flour to an acid solution to obtain a first mixture, ball milling the first mixture to obtain a ball milled mixture, and filtering the ball milled mixture, to obtain a dually-treated wood flour; S2. adding the dually-treated wood flour to a first alkaline solution, and performing a neutralization reaction, to obtain a second mixture; S3. adding an alkaline solution to the second mixture to remove part of lignin, to obtain a lignin-partially removed wood flour; S4. washing the lignin-partially removed wood flour with anhydrous ethanol and drying, to obtain a dried lignin-partially removed wood flour; S5. subjecting the dried lignin-partially removed wood flour to hot pressing, followed by cooling, to obtain the environmentally-friendly high-strength wood composite material.

A seat shell includes a one-piece shaped wooden shell which has a seat part and a backrest part and which in its transition region has a bent portion bent along a bending axis. The shaped wooden shell has a veneer structure including at least nine wood layers glued on top of each other. The wood layers include a top layer at each of the front and rear of the shaped wooden shell, respectively, the top layer made of a wood layer is arranged in the longitudinal direction. The wood layers also include between the top layers a number of middle and outer wood layers arranged in the longitudinal or transverse direction. The shaped wooden shell is upholstered, and has a transversely extending cutout defined by bars at the edge in the transition region and/or the backrest part.

The present disclosure relates to a method of producing a laminated wood product, comprising providing a plank presenting a pair of parallel major surfaces, a pair of minor surfaces, a pair of end surfaces and a longitudinal direction parallel with said major and minor surfaces and perpendicular to the end surfaces, said plank having a water content of more than 25% by weight, preferably more than 30% by weight, initializing at least one longitudinal crack in the plank, drying said crack initialized plank to a moisture content of less than 20% by weight, and laminating said crack initialized plank by gluing at least one of its major surfaces to a surface of a second member, thus forming the laminated wood product. The disclosure also relates to a laminated wood product, which may be formed according to the method.

A self-adhesive material for a wood board is described. The self-adhesive material is formed of polyolefin film having a melt index is 4 g/10 min (measured at 190 C. and 2.16 kg), and the polyolefin film contains reactive groups with OH groups of the wood for forming self-adhesive properties. Further, a wood board in which the self-adhesive material is used as a coating and/or as a glue-line material is described.

A self-adhesive material for a wood board is described. The self-adhesive material is formed of polyolefin film having a melt index is 4 g/10 min (measured at 190 C. and 2.16 kg), and the polyolefin film contains reactive groups with OH groups of the wood for forming self-adhesive properties. Further, a wood board in which the self-adhesive material is used as a coating and/or as a glue-line material is described.

A PVC veneer-overlaid plywood and a manufacturing method thereof. The PVC veneer-overlaid plywood includes a medium-and-high-density fiberboard, a PVC membrane and an ultraviolet paint. A hard, wear-resistant and highly transparent film will be formed after the ultraviolet paint sprayed on the PVC membrane is cured by ultraviolet light, so that the scratch-resistant, scratch-preventing, heat-resistant and durable effect is realized. In addition, the cured ultraviolet paint is stable in color; the flat mirror effect is better; and the paint film is full and free from wrinkles, so that the color uniformity of the surface of the coated film is effectively increased. It is convenient and quick to coat the surface of the plywood with the PVC membrane. The ultraviolet paint is high in coating efficiency, is low in coating cost, and is environmentally friendly.