Adhesion of solid wood or solid wood composite comprises applying liquid adhesive on a surface of the solid wood or solid wood composite and pressing the adhesive in channels and/or cavities of the wood by roller

• Main Author: RUSCH MARTIN
• Format: Patent
• Language: English; German
• Published: 29.12.2006
• Subjects: ACCESSORY MACHINES OR APPARATUS; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; DYES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NAILING OR STAPLING MACHINES IN GENERAL; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; PAINTS; PERFORMING OPERATIONS; POLISHES; SAFETY DEVICES, e.g. THOSE FOR SAWS; TRANSPORTING; USE OF MATERIALS AS ADHESIVES; WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL

The adhesion of solid wood or solid wood composite in which a liquid adhesive is brought into channels and/or cavities (25) under pressure or negative pressure. The channels and/or cavities are present in the wood in natural manner due to their cell structure. The adhesive is injected into the channels and/or cavities by a needle and nozzles openings (20) of device. The solid wood or solid wood composite is heated up before bringing the adhesive into the channels and/or cavities and set under vacuum to pull the adhesive in the channels and/or cavities. The adhesion of solid wood or solid wood composite in which a liquid adhesive is brought into channels and/or cavities (25) under pressure or negative pressure. The channels and/or cavities are present in the wood in natural manner due to their cell structure. The adhesive is injected into the channels and/or cavities by a needle and nozzles openings (20) of device. The solid wood or solid wood composite is heated up before bringing the adhesive into the channels and/or cavities and set under vacuum to pull the adhesive in the channels and/or cavities. As a result of cooling of air in the channels and/or cavities, a suction effect arises, which draws the adhesive into the channels and/or cavities. The adhesive brought in the channels and/or cavities is hardened by high frequency, microwave, ultrasonic or infrared light. The channels and/or cavities are closed with the adhesive to increase the bonding area and improve the adhesion, and other adhesive layer is applied to the solid woods or wood composites to glue one another and exhibits a lower viscosity than the adhesive used for closing the channels and/or cavities. An independent claim is included for a device for carrying out adhesion of solid wood or solid wood composite.