RU1826938C - Method of decorative processing of wood surface - Google Patents

Abstract

The invention relates to the technology of carpentry, construction, and cladding, which uses decorative panels for decoration. The essence of the method: in sawn wood, a raised surface with a natural texture is revealed by mechanical processing by sandblasting or a brush, which leads to the removal of less dense layers. Such processing allows to obtain a decorative surface having a different depth, which can be varnished to the required height. 4 s.p. f-ly, 4 ill.,

Description

The invention relates to wood processing, in particular for the production of decorative panels for furniture lining, interiors of domestic and office premises, musical instruments and carved art products.

The aim of the invention is to increase the decorative and artistic properties of wood by obtaining the relief of the natural texture.

In FIG. 1 shows an uncoated sample; in FIG. 2 - a sample with a flooded relief; in Fig.3 - a sample with a preserved relief, varnished; in FIG. 4 - sample with a preserved relief, metallized.

A method for decorative processing of a wood surface involves sawing wood and revealing a textural work surface. Then, a dry sawn blank with a rough surface of 500 to 1200 μm — a pine board without resinous smudges on the surface is treated with acute-angled corundum particles sifted through a sieve with 0.2-1.0 mm cells. The processing was carried out using a sandblasting machine with a working fluid pressure of 0.3-0.5 MPa for 3-6 minutes, with the distance of the sandblasting nozzle from the treated surface 150-200 mm, 1 The depth of processing (height of the crest of the later layers} obtained in the range of 0.5-3.0 mm, the air Pressure in the installation is sufficient to carry out the described operation.

Then, the treated area was filled with varnish to a height exceeding the crest of the relief by 1.5-2.0 mm to provide technological allowance removed during grinding and polishing. After final polishing, the product takes on the form shown in FIG. 2.

A natural relief created by this method is possible by spraying a thin layer of transparent furniture lacquer (see Fig. 3) or by spraying a metal powder in a flame of gas

00

go about

W 00

 W

flame burner (see Fig. 4) while maintaining the resulting relief.

The shape and location of the relief correspond to the texture of the wood. The optimal particle sizes of the powder of 0.2-1.0 mm were selected during the experiments, depending on the "coarse or small layer texture of wood. The use of a finer powder reduces the productivity of the process, and with a larger particle size the processing quality is impaired. If necessary, the obtained relief is filled with a layer of transparent varnish or other hardening filler to a thickness exceeding the height of the relief, sufficient for grinding and polishing operations,

As a result of this, the comb topography, when viewed from different angles of view, acquires a decorative effect, as if flooded in a liquid volume image.

This method, in addition to a peculiar decorative effect, makes it possible to obtain coatings that are protective agents against fire and decay of yresesina.

When machining the surface with a softwood frame of wood from coniferous species in the form of a sawn board with a rough surface, after sawing on a sawmill, the board is placed on the plane | So, they are limited by stops and treated with a manual electric drill with a cylindrical brush at a plane pressure of 0.5 kg / cm2. A rotating carriage passed through the fiber arrangement during its translational movement. As a result, loose wood layers were selected and capillaries were riveted in the selected surface, which increases the moisture resistance of the wood, since the soft porous layer is removed under the influence of the metal pile of the carriage for 2-3 minutes, the solid resinous layer remains unchanged. Then, the number of revolutions was reduced, and finishing of the obtained surface with a lavsan carriage was performed according to the location of the wood structure. During the egg processing, the pressure applied to the surface to be treated should be no more than 0.5 kg / cm2, since the process of destruction of solid resinous annual layers of wood takes place, and it is also necessary to exclude a long delay of the carriage cylinder in one place, which can lead to damage to the product.

This process can be automated.

The positive effect of this decision. Consists in the fact that it allows

As a result of simple and cheap surface treatment of wood of widespread species, decorative products of high artistic quality are obtained that take into account cuts of annual layers in transverse, radial and tangential sections from both the business and the range of the wood part of the trunk.

Claims (5)

The claims. A method of decorative processing of a wood surface, including sawing wood, revealing a textural work surface, machining it, applying a tonic and concealed coating, characterized in that, in order to increase the artistic and decorative properties of wood by To obtain a relief structure, the machining of the working surface of the wood is carried out by removing less dense layers to different depths in accordance with its natural structure. 2. A method according to claim 1, characterized in that the removal of less dense layers of wood to various depths is carried out by bombarding it with a metal or abrasive powder supplied by the working medium under pressure. 3. A method according to claim 2, characterized in that the surface of the wood is bombarded with a powder with a particle size of 0.2-1.0 mm at a working medium pressure of 0.3-0.5 MPa. 4. Method of pop, 1, characterized in that the removal of less dense layers of wood at different depths is effected by the action of a carriage. 5. A method according to claim A, characterized in that the action of the carriage is carried out in several stages with different stiffness of its fibers. a9j, e fef (COM peFHj FIG. 1 LAC Fig 2 Fip 3 FIG 4 metal powder