Why did the furniture crack? what is the reason?

Why did the furniture crack? what is the reason?

Foreword: Natural and environmentally friendly solid wood furniture reveals the beauty of nature and originality, coupled with its enduring durability and high collection value, it has always been popular with high-end consumers. However, general solid wood furniture will have expansion joints, because wooden furniture usually has the phenomenon of thermal expansion and contraction. If there is no expansion space, it is easy to cause the furniture to crack and deform. And some people who don't understand the profession think that this is a crack in the furniture. What kind of crack is considered a crack? What caused the solid wood furniture to crack? Is cracking of solid wood furniture really a quality problem? What should I do if it cracks?

If we carefully observe some high-end solid wood furniture , we will find that there is often a gap that is not wide or narrow at the side of the furniture panel.

This gap is called expansion joint or contraction joint, it is not caused by mistakes in furniture design and manufacture. On the contrary, expansion joints are deliberately clever ideas. Its existence has played a huge role in preventing the physical characteristics of wood "heat expansion and contraction" and improving the service life of solid wood furniture.

Why should we leave expansion joints for solid wood furniture?

Expansion joint is a traditional processing technology of Chinese classical furniture. Everyone who knows solid wood furniture knows that a pure solid wood furniture will inevitably retain the excellent manufacturing process of traditional furniture in the Ming and Qing Dynasties-tenon and mortise structure, not used An iron nail, through the clever combination of tenon and mortise, assembles all parts of the furniture. Expansion joint is to prevent the frame or corner of the furniture from cracking when the wood shrinks or expands due to the influence of the external environment, resulting in the loosening of various parts of the furniture, which cannot be used normally.

It is necessary to deal with the expansion joints on the surface of the solid wood panel. It is called art sewing or craft sewing. Mostly at the interface, but also two different wood grain direction!

What is the size of the expansion joint?

The size of the expansion joint is very important. The width of the expansion joint is determined according to the specific gravity of the wood and the climate characteristics of the area where the furniture is ultimately used. The width of the expansion joint is generally within 0.3-0.5 cm, and it is more ugly than 0.5 cm. If the panel is not too wide, it is not necessary to exceed 0.5. The expansion joint is too wide. Generally, the wood is not dry when making furniture.

Some people who do not understand the market conditions of the industry always think that this is a crack in the furniture, and when it cracks, it is considered to be a problem with the quality of the furniture. Then this solid wood furniture must be fake, and then go to the manufacturer to settle the claim.

Let's take a look back at the scene: ↓↓↓

Owners must be very distressed in such cases. It is definitely a quality problem to think about how this kind of situation occurs in good solid wood furniture. After all, consumers are not professional designers. When they find that solid wood furniture is cracking, they do n’t want to immediately find a furniture store. “Your home has a problem!” Lose money, lose money, lose money. The important thing is to say it three times. Various complaints ask for compensation! Solid wood Does the cracking of furniture really indicate a problem with furniture quality?

Cracking of solid wood furniture indicates a problem with quality?

Many friends think that if solid wood furniture cracks, then the solid wood must be fake. In fact, even if it is noble, there will be cracking, which also needs to be repaired.

Why does solid wood furniture crack? ★ Cause one: The moisture content of solid wood

The moisture content of solid wood furniture is not well controlled, and there will be quality problems such as cracking and deformation. After the furniture is produced, the moisture content of the wood determines whether the shape and material of the furniture will change again. Therefore, it is very important to control the moisture content of solid wood furniture. The balanced moisture content will not be cracked and deformed due to environmental factors such as sunlight exposure, excessive cooling, and excessive heat.

★ Cause of weather two

The moisture content of furniture is required to be one to two percentage points lower than the actual average moisture content of air. Due to the difference in geographical location, the climate and weather in China are also different, so the moisture content requirements for solid wood furniture are also different. For example, the average annual moisture content of Beijing is 11.4%, so the moisture content of solid wood furniture should be controlled at 10.4% or 9.4%; the average moisture content of air in the south is 14%, and that in the north is 12% -13%. Therefore, after some solid wood furniture from the south is transported to the north, cracking may occur.

★ Cause 3 Improper use

Some friends do not take good care of the precious solid wood furniture, and place it in the bedroom by the window, so that the "baby" can endure the balcony exposure. Or wipe the dust with a towel that is too moist. Move the furniture at will, causing damage to the furniture frame.

★ Cause four transportation damage

During the transportation of furniture, it is inevitable that there will be bumps. In addition to the reasons of climate, the transportation of solid wood furniture is even more difficult. Although solid wood furniture is more "sturdy" than furniture made of other materials, it is difficult to avoid maintenance if it is not well maintained.

How to rescue cracked solid wood furniture?

If it is judged by the naked eye without cracking, it is very easy to solve. Use 502 glue to drip along the crack, and then use the blade to gently scrape off the excess glue, but do not hurt the paint surface of the furniture with the blade . If a small crack has been split, the treatment will be relatively complicated.

Provide you with several emergency remedies:

1. Cook the old books, newspapers, alum, and water into a paste together, carefully insert them into the cracks, and wait for the solidification.

2. The white glue + wood chips are mixed evenly, embedded in the gap, and polished with sandpaper after one day and one night.

3. After mixing with paint and pigment, embed and block it. The lacquer surface is scratched, and the wood under the paint is not touched. You can use crayons or paints of the same color as the furniture to modify the wound surface of the furniture to cover the exposed background color, and then apply a thin layer of bright nail polish.

4. If white scald marks are left on the furniture, usually scrub with a cloth dampened with alcohol, toilet water and fire oil. If cigarette butts or unsettled matches leave scorch marks on the lacquer surface of the furniture, you can wrap a matchstick or toothpick with a layer of fine-grained hard cloth, gently wipe the traces, and then apply a thin layer of wax to reduce the scorch marks.

Of course, the above is only a remedy for minor cracks. If you encounter a large crack, you must ask a professional to repair it.

How to effectively prevent cracking of solid wood furniture? 1. Low floors are relatively suitable for solid wood furniture

Because the floors are high and the wind is relatively large, the moisture in the wood is easily blown dry and it is easy to cause cracking. It can be used with confidence below three floors. It is recommended to pay attention to indoor ventilation problems above three floors to keep the furniture with a stable moisture content.

2. Dehumidification in the rainy season and humidification in the dry season

In the rainy season, you can turn on the dehumidification function of the air conditioner; winter air is dry, use a humidifier to properly increase the air humidity; adjust the air humidity within the optimal range to prevent the furniture from cracking.

3. Use furniture essential oil to lock in moisture

You can buy essential oils for furniture care in supermarkets and apply them evenly on the surface of the furniture. This will lock the moisture in the wood, prevent the furniture from deforming, and moisturize the wood.

4. Polishing of commonly used oil wax

The daily wiping of solid wood furniture is also very particular.When wiping, use a soft cotton cloth.The cotton cloth can be slightly damp, but it cannot be wet.It can't be squeezed out of water. Wipe with solvent or detergent to avoid corrosion of furniture paint and cause cracking of the paint surface. In order to avoid dullness and discoloration of the furniture after using it for a period of time, the furniture can be waxed regularly and treated accordingly.

5. Handle carefully and keep away from heat source

The handling of solid wood furniture should be light, stable and flat. Try to avoid damage as much as possible during transportation, and place it steadily. In case of unstable placement, add some cardboard or veneer to make it stable.

Solid wood furniture should also be kept away from heat sources. Lacquered solid wood furniture should avoid direct sunlight, because the strong ultraviolet radiation easily fades the painted surface and affects the appearance. Heating devices such as heaters and kerosene lamps that are too close will deform the furniture. Putting kettles, tea stoves and other objects on solid wood furniture will cause them to "burn". If you place overheated metal utensils on a solid wood dining table, be sure to add a heat insulation pad.

Above content provided by GO good home network

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