Daxinban ■Daxinban should not be overweight blockboard, commonly known as Daxinban within the line, is made by the two veneer sandwiched and spliced ​​wood. In the middle of the blockboard is a core made of natural wood sticking, with thin veneer on both sides. It is one of the most important materials in the decoration and can be used as furniture, door covers, heating covers, curtain boxes, etc. Moisture resistance is better than particleboard and MDF.
When selecting large core boards, the focus is on the internal wood, which should not be too crushed. The gap between the woods should be about 3 mm.
Many consumers choose Daxin board, a look at weight, and second look at price. In fact, large core boards that exceed the normal weight indicate the use of miscellaneous wood. The large core board made of mixed wood cannot be used because it cannot be nailed.
â– Use products above E1 level First of all, home decoration can only use E1 level big core board. The formaldehyde content of E2 grade large core board may be more than 3 times that of E1 level large core board, so it can not be used for home decoration.
Second, it is necessary to purify and close the large core boards that cannot be finished, especially the backplanes, various interior panels, and heating covers. At present, experts have developed formaldehyde sealants, formaldehyde sealing waxes, and aerosols that eliminate and seal formaldehyde.
Generally, about 100 square meters of room do not use more than 20 large core boards. Excessive use may cause excessive formaldehyde in the indoor environment. In particular, do not use a large core board as a liner below the floor.
â– How to buy a quality Daxinban look at the manufacturer's trademark, production address, anti-counterfeit signs.
Secondly, see if the formaldehyde emission in the product test report is less than or equal to 1.5 mg per litre. General regular manufacturers have test reports, the lower the detection value of formaldehyde, the better.
Third, look at the appearance quality of Daxin board. To see if the surface of the Daxin board is smooth, whether it is warped or deformed, or whether there is bubbling or dent; the blockboard can be cut open at the scene or during construction to observe whether the inner wick is even and tidy, and the gap is as small as possible.
Four smells have odor. If the large core board emits a fragrance of wood, it means that the amount of formaldehyde released is less; if the smell is pungent, it means that the amount of formaldehyde released is more, do not buy it.
The importance of water-repellent coating waterproof coating in the home improvement is undoubted, but how to choose? Water-repellent application experts advise that when purchasing waterproof coatings, in addition to selecting relatively well-known brands, they should also pay attention to raw material components. For example, coatings with better water-repellent properties usually contain “silicone-modified acrylics,†and others use “nuclear.†"Shell" technology, more frontier is containing "organic fluorine", these products should be excellent.
It is understood that currently available waterproof coatings on the market can be roughly divided into three types: modified asphalt waterproof coatings, which are used in conjunction with glass fiber cloth, the project is relatively complex; polyurethane waterproof coatings, these coatings are generally used containing toluene, two Toluene and other components of the organic solvent dilution, containing toxicity; recently the city of silicone rubber waterproof coating, the coating is mainly made of polymer synthesis technology, has a good waterproof, moisture-proof function, and the construction is relatively simple.
â– Four ways to judge the quality of cement. How to judge the quality of cement?
A look at the cement paper bag packaging is intact, the sign is complete. The signs on the paper bags are: factory name, production license number, cement name, registered trademark, variety (including variety code), label, packaging year, month, date, and serial number.
In the second batch, the cement powder was rubbed with a finger and felt a little fine, sand, and powder, indicating that the cement fineness was normal.
Third, look at the color, observe whether the color is dark gray or dark green, the color yellow, white (yellow shows the raw material is clinker, white, indicating excessive slag content) cement strength is relatively low.
Four look at the time to see the production date of cement. Cement performance beyond the valid period of 30 days has declined. After three months of storage, the strength of cement is reduced by 10%-20%, decreased by 15%-30% after six months, and decreased by 25%-40% after one year. High-quality cement can be solidified in more than 6 hours. Cement that does not solidify for more than 12 hours is of poor quality.
It is best to add the words “must conform to national standards†to the purchase contract or invoice, and leave a sample in the construction. Once the project is completed, it is found that due to the quality problems of the big core board, the indoor environment may be polluted. As the basis for judgment responsibility.
Entrance decoration restaurant decoration cement coating formaldehyde decoration interior decoration glass furniture glass door
As producer of slurry pumps with casting foundry shop, Muyuan can offer many kinds of pump impellers, such as the colsed type or the open type slurry pump impellers. The slurry pump impeller is the main rotating parts which normally has vanes to transfer the centrifugal force to the liquid. Its good performance mainly effect the slurry pump operation performance at site.
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