The invention relates to a method for extruding wood pellets, the method being characterized in that it comprises at least the steps of: (a) providing pieces of wood; (b) grinding and partially drying, in a twin-screw extruder including at least shear generating elements, pieces of wood to obtain wood particles having a reduced water content compared to the pieces of wood; (c) compressing the particles and shaping in at least one die to obtain wood pellets.

The invention also relates to a wood pellet capable obtained with this method and a co-rotating twin-screw extruder intended for the extrusion of wood pellets

The invention relates to a method for extruding wood pellets, the method being characterized in that it comprises at least the steps of: (a) providing pieces of wood; (b) grinding and partially drying, in a twin-screw extruder including at least shear generating elements, pieces of wood to obtain wood particles having a reduced water content compared to the pieces of wood; (c) compressing the particles and shaping in at least one die to obtain wood pellets.

The invention also relates to a wood pellet capable obtained with this method and a co-rotating twin-screw extruder intended for the extrusion of wood pellets

The invention claims a flame-retardant and corrosion-resistant fiber bamboo substrate and a preparation method thereof. The preparation method comprises the following steps of: 1) cutting raw bamboo into bamboo filaments; 2) flame-retardant treatment: soaking the bamboo filaments prepared in Step 1) in aqueous solution of a flame retardant; 3) drying: drying the flame-retardant treated bamboo filaments at 55 C. to 65 C. until the absolute water content is not more than 12%; 4) carbonized pyrolysis: feeding the dried bamboo filaments into a carbonized pyrolysis kiln, to be high-temperature treated according to a pyrolysis gradient; and, 5) sequentially gumming, post-gumming drying, pressing, curing, maintaining and splitting to obtain a bamboo substrate. The bamboo substrate has high stability, no cracks on the product surface, enhanced corrosion resistance and excellent flame retardance, and may be used in various climate conditions and environments.

The invention claims a flame-retardant and corrosion-resistant fiber bamboo substrate and a preparation method thereof. The preparation method comprises the following steps of: 1) cutting raw bamboo into bamboo filaments; 2) flame-retardant treatment: soaking the bamboo filaments prepared in Step 1) in aqueous solution of a flame retardant; 3) drying: drying the flame-retardant treated bamboo filaments at 55 C. to 65 C. until the absolute water content is not more than 12%; 4) carbonized pyrolysis: feeding the dried bamboo filaments into a carbonized pyrolysis kiln, to be high-temperature treated according to a pyrolysis gradient; and, 5) sequentially gumming, post-gumming drying, pressing, curing, maintaining and splitting to obtain a bamboo substrate. The bamboo substrate has high stability, no cracks on the product surface, enhanced corrosion resistance and excellent flame retardance, and may be used in various climate conditions and environments.

The invention relates to a method for manufacturing a sheet from the pseudostem of the banana plant, including the steps of: cutting out a beam from a central portion of the pseudostem; cutting leaves from the beam; forming a sheet by assembling the leaves such that the latter overlap over a predetermined width; and pressing the resulting sheet.

The invention relates to a method for manufacturing a sheet from the pseudostem of the banana plant, including the steps of: cutting out a beam from a central portion of the pseudostem; cutting leaves from the beam; forming a sheet by assembling the leaves such that the latter overlap over a predetermined width; and pressing the resulting sheet.

The invention relates to a component made from a material consisting predominantly of renewable raw materials, the component having at least one hole with a longitudinal axis (A) and the material being locally compressed in the region peripherally adjoining the hole. According to the method, at least one pin, which comprises a substantially cylindrical shaft and a tip having a reducing diameter in the direction of the component, penetrates into the material, thus creating a hole in the component, and displaces the wood material radially and/or axially, so that the material in the region surrounding the hole is compressed. The tool used for carrying out the method is designed in the form of at least one pin having a cylindrical or polygonal shaft and a tip reducing in diameter in the direction of the component.

A method for making a piece of figured veneer comprises softening lignin in a sheet of veneer, and advancing the sheet of veneer between a first roller having a semi-flexible outer surface and a second roller. Apparatus for making a piece of figured veneer comprises a device for softening lignin in a sheet of veneer, and first and second rollers between which the sheet of veneer is pressed. The first roller has a semi-flexible outer surface.

A method for making a piece of figured veneer comprises softening lignin in a sheet of veneer, and advancing the sheet of veneer between a first roller having a semi-flexible outer surface and a second roller. Apparatus for making a piece of figured veneer comprises a device for softening lignin in a sheet of veneer, and first and second rollers between which the sheet of veneer is pressed. The first roller has a semi-flexible outer surface.

A Method of producing a wooden product by means of a molding hot-pressing from a wooden blank which has one or several sections (A, B, C, D). Wherein as a material is selected an optional form of sawn timber or another timber, which is preferably selected from the group consisting of fresh sawn timber, dried timber, saw-surfaced lumber, planed timber, heat-treated timber, sodium silicate water-glass impregnated or salt impregnated or otherwise impregnated timber; wherein molding hot-pressing is performed essentially in a single-stage production process, which includes drying and molding hot-pressing of the wooden blank and essentially concurrent treating of the wooden blank both by binders of the wood itself and by treating chemicals and/or treating materials added in the production process which are selected from the group consisting of surface treatment agents, excipients, primers, impregnating agents, adhesives, adhesive films, adhesive gauzes; wherein the treatment chemicals are attached to the production process by using a hot-pressing pressing plate etc., pressing tool or pressing surface; and wherein the wood material, and binders thereof as well as the treating chemicals are allowed to adapt/move in relation to each other in the cooling phase of the production process until the locking phase, whereby the product is completed.