FI80232C - Process for wood processing - Google Patents

Description

1 80232

METHOD FOR WORKING WOOD

The invention relates to a method for processing wood for the production of a wooden object.

When making various wooden objects from wood, the necessary timber is dried before the wood is processed. Especially large pieces of wood are difficult to dry because they crack easily. After drying, the wood is processed in various ways, e.g. by milling, turning and other known machining methods. Even during processing, wood that has been subjected to stresses during drying can easily crack, making it impossible to make a wooden object.

The object of the invention is to provide a method for working with wood, by means of which the drawbacks associated with the current methods are eliminated. In particular, it is an object of the invention to provide a method by means of which pieces of wood can be machined without cracking, which method is simple. It is a further object of the invention to provide a method by means of which large solid pieces of wood can be machined.

The object of the invention is achieved by a method characterized by what is stated in the claims.

In the method according to the invention, fresh wood is processed and the drying of the wooden object is controlled by protecting the fast-drying parts of the wooden object so that the wooden object dries evenly from each point. According to the invention, it is essential that the wood to be processed is fresh, i.e. the moisture of the wood is preserved and that the moisture of the wood in the treated wood object is removed in a controlled and uniform manner from the entire structure.

2 80232

The wood is processed before it dries and the wood shrinks. In this case, the wooden object can also dry and shrink from the inside at the same time as the outer surface. Wood, as a flexible material, is able (in dimensions of 5 suitable for the object) to slowly and evenly, when dried, compensate for the difference between radian and tangential shrinkage without cracking.

In the manufacture of wooden objects, the wood is split either centrally or longitudinally. Various bowls and / or frames are made of heart-centered wood, and longitudinally split wood is used to make e.g. When using the method according to the invention, other wooden objects can also be made of wood. When processing 15 fresh wood, the wood does not crack and can be easily machined to the desired shape. When working, for example, wooden objects in the shape of a bowl, bowl or frame, the wood inside the wooden object is removed during processing.

20 After machining, the drying of a wooden object is controlled by covering fast-drying and easily cracked areas such as corners, corners, edges and possibly in some applications the outer surface with a drying-retarding material. Not all objects need to be protected.

As the drying-retarding material, a known material suitable for retarding moisture evaporation at these points, such as tapes or the like, can be used.

According to the invention, the surface of a wooden object is left rough during processing. The evaporation surface of the house is at least twice that of a clean, smooth surface.

In the method according to the invention, the wooden objects are preferably dried as naturally as possible. In this case, the temperature and humidity are kept as natural as possible, and no attempt is made to evaporate or increase the humidity with 3 80232 special equipment. However, in some applications, wood objects can be dried in a special drying room or the like, where the drying of the wood objects is closely monitored.

5

After the wooden object has dried, its surface is machined to its final shape. Turning and grinding, for example, are used as finishing work, during which the actual surface treatment is performed. Evenly dried wood is not broken 10 during this surface treatment either.

The method according to the invention is suitable for use in machining all wooden objects. In particular, it is suitable as a method for machining large and massive wooden objects 15. The method makes it possible to process wooden objects simply and without cracking them.

Claims (5)

1. A method of processing wood for the manufacture of wooden articles, characterized in that the wood is treated and the drying of the wood article is regulated by protecting the rapidly drying parts of the wooden article so that the article dries smoothly over the entire surface. 2. A method according to claim 1, characterized in that the wooden article is partially protected with protective agents which do not substantially pass through moisture. 3. A method according to claim 1, characterized in that the surface of the wood preform remains rough during machining. Method according to any of claims 1-3, characterized in that, after drying the wood article, the surface of the wood article is processed to its final shape.