Woodworking technology and matters needing attention

In mid-range decoration, woodworking projects often belong to a major item. From the perspective of decoration, carpentry basically represents decoration. Many owners will regard carpentry as the fundamental skill of a decoration company. Therefore, most decoration companies will regard woodworking as the top priority.

After fierce market competition, the price of latex paint dropped from 40 yuan to 20 yuan per square meter, and the price of muddy water dropped from 40 yuan per square meter to the point where someone sent someone to work with muddy water. Finally, it is carpentry that ensures the profit of the decoration company. Because of this, the woodworking quotation is constantly in a relatively stable state.

The purpose of woodworking quotation is materials, design and other elements, which are even less comparable than other decoration projects. Let's take a simple wardrobe as an example:

Scheme 1: adopt the density board structure, with veneer inside and veneer outside.

Scheme 2: large core plate structure is adopted, with varnish painted inside and mixed oil painted outside.

Scheme 3: adopt the structure of large core board, with Bailey board inside and varnish decorative board outside.

Option 4: All-solid wood building, painted or mixed with oil (this depends on the variety of solid wood).

The above four methods are all feasible in theory, but the cost is very different. The cost of the third scheme, such as the cost of the first scheme, may be more than double, and the comparability is lower due to the differences in design.

Here we are concerned with technology, not information. The reason for the above comparison is mainly to clarify the differences in technology and cost. Please refer to the related contents in the first section of this chapter for the contents of wooden boards.

Main board technology

1.MDF technology

Density board can be divided into high density board, medium density board and low density board. Ordinary people use medium density boards. This technology is most popular with furniture factories and professional companies (such as cabinet companies). This process is suppressed by machines, and the possibility of on-site construction is simply. Zero. Therefore, decoration companies rarely use it.

The technology of MDF mainly depends on the combination of components. On the other hand, its veneer mainly adopts the process of sticking rather than nailing. This kind of sticker is different from on-site manufacturing, and it is mainly pressed by machine. The combination of bonding data such as density board and fireproof board can often make quite good results.

The main defect of MDF technology is its high shrinkage and hopelessness after encountering water. Another defect is poor bending performance, so it cannot be used in projects with high stress.

2. Large core board technology

The large core board is a popular information at present, especially for decoration companies. The core material of large core board has certain strength. When the size is relatively small, the effect of using large core board is better than other wood-based panels.

Of course, the construction technology of large core board is essentially different from that of modern carpentry. Its construction is convenient and fast, and the cost is relatively low, so it is more and more liked by decoration companies. The process of large core board mainly adopts nails, and it is also suitable for simple glue pressing process.

The main defect of large core board is poor vertical bending performance. When used in the construction of bookcases and other projects, its large limiting strength often cannot meet the requirements of book weight; The solution can only be to reduce the distance between bookshelves.

3. Fine core technology

Fine core board appeared earlier than large core board, and it is a more traditional material in modern woodworking technology. Thin core plate has high strength and good bending performance. In many decoration projects, it can be competent for related roles, and in some structural parts that need to bear weight, the use of thin core plates will have more strength. Among them, the 9mm board in the thin core board is necessary for many engineering projects.

Thin core board, like large core board, mainly adopts nail technology, and can also be simply pressed.

The main defect of thin core plate is that its stability is worse than other plates, which is caused by the divergence of its core material data, which may increase the deformation of thin core plate. Therefore, the thin core plate is not suitable for single-sided parts, such as cabinet doors.

4. Solid wood board technology

Solid wood practice is a traditional practice. Because there are many kinds of wood, the effect is very different, but the technology is similar. Solid wood board has the advantages of good bending performance, high strength, durability and good decorative effect.

Solid wood practices adopt traditional techniques and rarely use nails, glue, etc. The technical requirements for carpenters are very high, and it is difficult for carpenters without formal exercise to be competent for this kind of work.

In the process of eating, solid wood boards should be cooked, insecticidal and dried. Using untreated wood, there will be hidden dangers of pests (mainly termites)

Matters needing attention in woodworking technology

1. Treatment of nail holes

Strictly speaking, the treatment of nail holes belongs to the painter's category. As the saying goes, "three points are beautiful, seven points are dressed." This sentence is also typical in carpentry. At present, most of the decoration uses reprocessed plates, and the construction uses nails. How to deal with these nail holes has become a prominent problem. This requires a very strict attitude towards the color matching of putty, so that the color after color matching is essentially different from the appearance of wood, thus covering up these defects. The same treatment is also applicable to the treatment of tree knots and tree scars.

2. The choice of masking.

The selection of high-quality plates is the first factor to ensure quality, and strict selection is required for the quality and applicability of plates.

3. Selection of facing technology

Different plates need different processing techniques. For example, solid wood boards and decorative boards with beautiful textures can be varnished; And solid wood or ordinary plywood without veneer has poor texture, so it is necessary to use mixed oil. Similarly, on the other hand, if you use varnish, then you should choose solid wood or veneer with good appearance; To use mixed oil, you only need to choose ordinary plates. It's a waste of money to use decorative boards mixed with oil.