How to control the humidity of solid wood flooring in sports .

1. Indoor humidity control and high temperature standards.

Why do indoor stadiums need to do a good job of regulating humidity and humidity? The main purpose is to create a stable external environment for the sports wood floor of the ground paving. The indoor humidity of the stadium is maintained at 50% to 70%, and the indoor temperature is controlled between 10 and 35.

2. Clean and waterproof.

In the northern region, when the air is drier, the sports wood floor should be wiped with a damp mop once a day. Regularly check the use of sports wood flooring, do not have a wet mop when cleaning sports wood flooring, and do not spill water on sports wood flooring to prevent sports wood flooring from getting wet.

3. Check the water pipes.

Stadiums have toilets, plumbing and other small pipe facilities, and the safety of these water facilities should be checked regularly to prevent water leakage in the stadium and prevent the sports wooden floor from soaking.

4. Intelligent system to regulate moisture content.

After hard work, the researchers of sports wood flooring have finally developed a system to automatically control the internal moisture content of sports wood flooring. The main components of the system include: a microcomputer chip, a humidity sensor and two air pumps.

When the humidity of the bottom layer of the sports wood floor reaches the preset value, the microcomputer chip automatically turns on the air pump to start air circulation, so as to reduce the moisture of the bottom layer of the sports wood floor.

For sports wood floor production enterprises, how to reasonably and scientifically control the moisture content of gymnasium wood flooring in the production process of sports wood flooring is a very important thing. So how can it be rationally scientific?

1. Formula for calculating moisture content

The moisture content of the sports wood floor directly affects the strength and volume of the wood, the moisture content of the wood is the ratio of the weight of the moisture contained in the wood to the dry weight of the wood, also known as the moisture content, take a piece of wood and weigh it, assuming that it is dried to an absolutely dry state, and then weigh the weight is, then the dry weight of the wood is, and the weight of the moisture is. The moisture content of this piece of wood is:

Moisture content (w%) = (weight of water-bearing wood - weight of dry wood) (weight of dry wood) x 100% =

2. Balance the moisture content

The change of wood strength and shrinkage brings a lot of inconvenience to the use of wood, and it is impossible for us to eliminate this objective adverse change, but we can understand and grasp the law of change and control this change. Wood moisture can be evaporated into the air, and moisture in the air will also be sucked in, the latter phenomenon is "moisture absorption", moisture absorption is the characteristics of wood, mainly the moisture content of wood reaches the relative saturation point, and its moisture content is too high, or too low will bring unfavorable factors to the basic physical properties of wood.

Corresponding to a certain air humidity and relative humidity, there is a value of wood moisture content, which is called "equilibrium moisture content". Example: The average indoor humidity in the local area is 32.

Relative humidity 55%. From the figure, it is found that the equilibrium moisture content is 10%, the general moisture content of high-grade furniture materials is 15%, and the general wood products (including wooden packaging) are set by the relevant departments to be 18% and about 25% are standard products, because the wood is below the moisture content of 18%, wood rot fungi can not survive and reproduce.

3. Prevent abnormal shrinkage

The phenomenon of volume shrinkage caused by the reduction of water content of sports wood floor is called dry shrinkage, and dry shrinkage is also called "anisotropic", for example, when the fiber saturation point drops to 0% of the moisture content, the dry shrinkage of the grain is very small, for, the horizontal grain radial shrinkage is, the maximum chordal shrinkage is large, and the volume shrinkage is, so when the wood texture is not straight and uneven, the surface and internal water evaporation rate is inconsistent, and the dry shrinkage degree of each part is different, there will be irregular deformation and uneven shrinkage such as bending and torsion, and cracks will appear.

Let's explain to you the control of temperature and humidity of sports solid wood flooring.

For the control of the temperature and humidity of the sports solid wood floor, because the maintenance methods of the sports wood floor are different in different seasons, in fact, the most basic thing is to keep the humidity in the sports gymnasium consistent throughout the year, and the most suitable indoor humidity is 40%-60%, and the sports wood floor should be protected to maintain this humidity.

In the dry season of heating, because of the influence of the northern monsoon, due to the dry outside air, the air humidity in the stadium is not the same, and at the same time, due to the use of heaters, the humidity in the stadium is also greatly reduced, so the venue must be completely closed, in order to reduce the convection of air ventilation, and at the same time, a certain amount of green flowers and plants can be placed in the stadium, and it is best to configure an air humidifier, and at the same time wipe the surface of the sports wood floor with a non-dripping mop every day (2-3 times), to ensure that the humidity in the room is suitable and balanced.

In the rainy and high temperature seasons of summer and autumn, due to the increase in humidity in the air, it is necessary to strengthen the air circulation in the venue to reduce the air humidity in the venue, for example: doors and windows should be closed on rainy days; If possible, the dehumidification function of the air conditioner can also be used to dehumidify the sports floor, for example, the air circulation should be reduced during dehumidification to ensure that the indoor humidity is within the allowable range.

1. Humidity adjustment should be flexible, the floor is very sensitive to the humidity of the air, too humid air, the floor is easy to mold and deform. When wet, the floor is easy to absorb water and expand, resulting in arching and deformation. In hot weather, the moisture on the surface of the floor needs to be blotted dry with a dry cloth frequently, and the air conditioner dehumidification function needs to be turned on regularly to dehumidify.

Indoor ventilation also needs to be carried out in a timely manner, the air humidity at noon is at the highest value, it is not suitable to open the window, and generally choose to open the window when it is dry in the afternoon.

2. In case of rain, the windows should be closed in time to prevent the deformation and damage of the wooden floor caused by rainwater.

3. Keep the floor dry every day, and do not mop the floor with a dripping mop in wet weather. Pay attention to avoid long-term water contact on the floor due to man-made reasons, keep the ground clean and dry, and repair the damaged layer of the floor in time.

4. If the floor is slightly damp, please dry it naturally, and do not use a hair dryer or heater to accelerate the drying, so as not to deform the floor.

5. Pay attention to the use of air conditioners, it is best not to let the temperature difference between indoor and outdoor be too large, and do not blow the air outlet directly against the floor, so as to avoid the rapid evaporation of water in the floor and shrinkage and deformation.

According to the laboratory test results, the dimensional change rate and warpage of the sports wood floor are the smallest under the condition of temperature of 20 and relative temperature of 75%, indicating that the structural stability of the sports wood floor is the best under this environmental condition.

Precautions to prevent moisture in sports wood flooring:

1. Turn on the ventilation equipment regularly, and the indoor relative humidity should be controlled at 50-70%, preferably equipped with a dry hygrometer to monitor the indoor humidity.

2. Control the moisture content of the sports wood floor, and the moisture content should be kept between 6% and 12%.

3. Reasonably set up ventilation holes, and the wooden joists should be connected to each other and connected with the ventilation holes of the floor surface layer to facilitate air circulation.

Fourth, the lower layer of the sports floor (i.e., the wool floor), the board seam should be properly opened, the surface should be planed, the adjacent board seam should be staggered, and the surrounding area should be about 10 15mm away from the wall.

5. There should be a gap between the surface layer of the sports wood floor and the wall, and it should be covered with a baseboard or baseboard.

Treatment measures after moisture on sports wood flooring:

1 Floors that have been severely damp or soaked in water for more than 30 minutes. Deformation, bulging, blistering, loss of gloss and other phenomena may occur. Such sports wood flooring is basically scrapped and should be replaced, and attention should be paid to removing the moisture under the floor and drying it; For lightly soaked and damp floors (observe whether there is obvious deformation), you can wipe them dry, ventilate, if necessary, disassemble the sports wood floor to observe whether there is water on the ground, if so, you need to remove and dry, and reinstall.

2. Lightly damp sports wooden floors can be placed in a cool and ventilated place to dry. Note that hair dryers, sun exposure, and drying are not allowed, which will accelerate the serious deformation of the wooden floor and damage the surface. Deformation, bulging, blistering and other phenomena of the damp floor.

After the environment is restored, the degree of defects will be reduced, laminate flooring do not have essential oil care, waxing, etc., solid wood sports wood flooring is best not waxed (except for single solid wood), essential oil care, to be carried out after the floor is restored (generally 1-2 months after essential oil care).

Process is the key to wood drying, the drying process of sports wood flooring often lasts for several days or even dozens of days, when to heat, under what circumstances humidity is very particular. The right process can ensure quality; Under the premise of minimal energy consumption, the wood can be dried as quickly as possible, and improper processing will cause many wood to be reduced due to drying defects, uneven moisture content, or even scrapped. Good equipment performance is the basis for drying wood and is the prerequisite for the implementation of the drying process.

Equipment and processes are as inseparable as the hardware and software of a computer.

When sports wood flooring is placed in a certain environment, after a long enough time, its moisture content will tend to an equilibrium value, which is called the equilibrium moisture content (EMC) of the environment. When the moisture content of the wood is higher than the equilibrium moisture content of the environment, the wood will shrink due to moisture discharge, and vice versa, it will absorb moisture and expand. For example, the average annual equilibrium moisture content in Guangzhou and Beijing are average.

Wood dried to 11% is suitable for Beijing, which can be used in Guangzhou will absorb moisture and swell and produce deformation. Therefore, the sports wood floor should be properly dried, not the drier the better.

International and domestic gymnasiums, basketball courts and other floors are made of professional sports wood flooring. With the development of sports wonders, now schools, enterprises and institutions of sports venues also use sports wood flooring, most of the customers in the purchase of sports wood flooring a few can not accurately distinguish its advantages and disadvantages, coupled with the later construction of the process and practice and other reasons, easy to incur basketball floor deformation, uneven ground and other achievements, to all parties to cause unnecessary economic losses, and to the later acceptance of the impact.

The ground is uneven in defense. The unevenness of the ground of the sports wood floor will cause part of the floor and keel to hang in the air, and the sound will be retracted when stepped on.

The length of the service life of the sports floor is one of the criteria for judging the advantages and disadvantages of the sports floor, and the time of the installation of the sports floor, because it is considered to be some sports venues, so in the time of stopping the installation project, it is necessary to consider a lot of achievements. In particular, the quality of installation will directly affect the service life of sports flooring.

Wear resistance is important. Athletes need to run back and forth and take off, which is much higher than the abrasion resistance requirements of household flooring.

Sports wood flooring is important is the use of pure solid firewood, the sports wood flooring materials on the market are imported from overseas materials, there are also maple firewood produced in Northeast China, as well as ordinary oak wood firewood rubber firewood, although they are all solid wood firewood, but their grade and price are not the same, overseas imported solid wood firewood has high cost, excellent type, good quality, all kinds of cost-effective, although the price is also absolutely expensive, domestic * maple firewood, their texture is average, the hardness is moderate, Excellent soft performance so that the sports wood floor to receive too strong vibration ability, so as to protect the personal safety of the athletes, the price belongs to the medium grade, simply most of the gymnasium will choose maple firewood, and the oak wood wood sports wood floor they are also relatively common, good wear resistance, there is a certain anti-slip performance, the price is absolutely cheap.