How to prevent cracking of fresh wood and how to deal with it

A way to prevent wood from cracking.

1. High temperature qualitative treatment is adopted.

The method of reducing wood internal cracking can be high-temperature qualitative treatment, and the residual deformation of wood surface extension that produces internal cracking can be eliminated by high-temperature and high-humidity treatment of wood before the end of the drying process. During treatment, the compression residual deformation of the surface layer of the wood due to humidification and expansion is offset by the original extension residual deformation, and the internal cracks of the wood are eliminated.

2. Mechanical crack prevention.

Wire bundle ends are used on dried wood, crack-proof rings, composite nail boards, etc., and the wood is mechanically forced not to expand and contract, so that the wood can also be prevented from cracking.

3. Paint with waterproof coating.

Applying waterproof paint to the ends and surface of the wood slows down the evaporation intensity of the wood surface, which can reduce the moisture content gradient inside and outside the wood, and can also reduce the cracking of the wood.

4. Dip with waterproof agent.

The more effective method is to use a waterproofing agent for pressure treatment, so that the waterproofing agent deeply enters the wood to achieve a long-lasting good anti-cracking effect.

5. Improve the sawing method when making wood.

Wood anisotropy, in the case of the same temperature and humidity changes, the largest moisture expansion and dry shrinkage coefficient is the chordal direction, followed by the radial direction, and the longitudinal change is the smallest, so when sawing, produce more radial cutting boards, which can reduce cracking. Especially plates with a medullary core.

Severe cleavage is prone to occur when drying, which is caused by the difference in shrinkage in the radial and chordal directions near the medullary core, and the best way is to avoid producing plates with a medullary core when making the lumber.

Fresh wood to prevent cracking, wood into the talent is not cut down useless, into the usable wood to prevent cracking, put in the cool and ventilated place natural evaporation water dry on the line, the rural eaves placed under the wood, the sun is not directly exposed to the rain, the winter rain with a plastic mold to block the natural air drying, so that it will not crack, the selection of wood also has to say, there are 4, 5 hours of drying room wood into the drying does not crack.

Here's how to prevent cracking with fresh wood:

1. Increase air humidity Put a few basins of water next to fresh wood, or put the wood in a humid environment to increase air humidity and prevent wood from cracking.

2. Apply transparent paint on the surface of fresh wood, and apply a layer of transparent protective wax or transparent paint to prevent the wood from cracking.

3. Brush the water-repellent substance on the surface of the wood with a mixed water-repellent substance, so that the surface of the wood and the external water droplets form a relative interface phenomenon, which can prevent the wood from cracking.

4. Preserve the environment Fresh wood should be stored in a ventilated and cool place, and the sun can not be seen, as the sun exposure will aggravate the cracking of the wood, and the air in the preservation environment should be moist.

Folk wood anti-cracking method pro! Hello, happy to answer your <>. There are many ways to prevent wood cracking, and high-temperature styling can be used.

It can effectively eliminate the possibility of internal cracking of wood, and can also use mechanical method to prevent cracking, that is, to use anti-cracking rings, and can also apply waterproof coating on the end and surface of wood, which can slow down the evaporation rate of wood surface, which can also reduce the cracking of wood. It can also be removed with a waterproofing agent, which is also a very good way to prevent cracking. 1. Soak in concentrated salt water

Blanch with boiling water, wash off the outer layer of wax, after washing off, be sure to soak it in concentrated salt water for a day, concentrated salt water is to boil the water, add salt while hot, and add until it no longer dissolves. The purpose of soaking the wood in concentrated salt water for a day is to make the surface of the wood salty, which absorbs moisture and can prevent the wood from drying and cracking. 2. Keep the air moist

It can be placed next to the wood products in a few basins of water or in a relatively humid environment to maintain moist air, which can effectively prevent the wood from cracking. 3. The use of high temperature setting treatment: it can effectively eliminate the possibility of internal cracking of wood, and can also use mechanical method to prevent cracking, that is, the use of anti-cracking ring, and can also paint waterproof coating on the end and surface of wood, which can slow down the evaporation rate of wood surface, which can also reduce the cracking of wood.

4. Coating water-repellent substance: If you want to effectively prevent wood from cracking, you can also apply a single or mixed water-repellent substance on the surface of the wood, so that the surface of the wood can form an effective isolation from the outside world, so as to alleviate the absorption of water from the outside world by the wood, so as to effectively prevent the cracking of the wood. Hope mine can help you <>

Do you have any other questions?

1. Put a few basins of water next to the wood products or place them in a humid environment to maintain moist air, which can effectively prevent the wood from cracking.

2. A layer of transparent protective wax or transparent paint on the surface of wood products can prevent wood from cracking.

3. Brush a mixed water-repellent substance on the surface of the wood, so that the surface of the wood and the external water droplets form a relative interface phenomenon, which can alleviate the absorption of external water by the wood to a certain extent.

Cracking of fresh wood is a very common phenomenon after it is cut in the spring due to the rapid loss of moisture. It is advisable to place the new wood in an area with soft fibers and let it air dry naturally, so that the chance of cracking is minimal. Or it can be quick-dried by steaming, running water and other methods, so that the drying speed is fast, but the gloss will be affected.

Why does fresh wood crack.

Because it was cutThe water dispersion of trees is uneven, the water dispersion of the surface layer is not fast, and the dispersion of water in the inner layer is slow. In addition, the wind and sun are different from cold and heat, and the thermal expansion and contraction change greatly, which leads to the cracking of trees. Therefore, it is common for a cut tree to crack

How to treat the wood without cracking.

The branches and leaves are well preserved

First of all, when the tree is just cut down,The branches and leaves must be left untouched, intact, and all preserved。Let the water in the tree naturally disperse quickly from the branches and leaves. If all the branches and leaves of the tree are cut off, and only the bare trunk remains, the trunk will inevitably crack.

Using this method, cutting down trees in spring, summer, autumn and winter has a good effect. The leaves gradually turn yellow, and the trees are completely dry, and then the branches and leaves are cut clean and the trunks are carried home.

At this time, it is necessary to prevent the tree from cracking in the short term. You can put the trees in a cool and dry place, and brush the missing bark and exposed wood parts with paint or grease.

Peel the skin with tung oil

If you want the tree not to crack for a long time. In the countryside,Generally, the bark of the trunk is completely peeled clean and then soaked in tung oil for two or three weeks。This is how the wood used to build fishing boats and coffins in the countryside is prepared.

After making utensils from this wood, the tung oil is brushed three more times, every 10 days. Next, polish it by hand with sandpaper. Finally, spray an even coat of paint. It ensures that the tree no longer cracks.

High-temperature setting treatment

Alternatively, it can be styled with high temperatures. It can effectively eliminate the possibility of internal cracking of wood, and can also use mechanical method to prevent cracking, that is, to use anti-cracking rings, and can also apply oak brush-resistant waterproof coating on the end and surface of wood, which can slow down the evaporation rate of wood surface, which can also reduce the cracking of wood.