It is not difficult to identify the quality of suspended assembling floors. As long as careful observation is possible, the following points can be specified:
1, see:
First look at the appearance, the surface without cracks, blisters, poor plasticization, the front of the floor without burrs, the thickness of the floor on the back of the touch pads uniform, uniform ribs, materials (PP) filled evenly, the surface without holes.
Secondly, look at the color, raw material product color is more bright, crystal clear, better finish. The product added with recycled materials is dull and dull, and fine particles in the middle of the material can be seen. Masterbatch (toner) is the color key is light, with a good masterbatch out of the uniform color, fade slowly and evenly, will not cause partial fading. Qualified products: bright and colorful colors, full gloss, brilliant color (such as: bright red, yellow) slightly transparent.
2, touch:
Good products must have both flexibility and hardness. Soft products have flexibility, but they can't meet the ball's bounce rate. They don't have the function requirements of sports venues. Exellent products, while satisfying the ball's rebound rate, Because there is no flexibility, it is particularly brittle and easy to fold, especially in the cold winter, the product is easily broken, affecting the service life. In addition, some inferior products can directly die.
3, smell:
Products produced with low quality, low cost recycled materials have an unpleasant odor. Such products have poor weatherability and severely affect the service life. Sotheby's products are made from 100% pure raw materials without any odor and ensure product quality.
4, weight:
The main material of the suspended assembly floor is modified PP, but there are many unscrupulous traders on the market. In order to reduce the cost, talc (talc powder) or Caco3 (calcium carbonate) is added to the PP material. Can not be integrated into the molecular chain of PP, it will greatly affect the life of the product and will greatly reduce the performance of the floor. If you hold a suspended assembly floor and feel heavy on your hands, you can determine that the floor is adding a certain amount of talcum powder or stone powder. The specific method can put the product into the water-filled pelvic floor to observe the rising speed. The genuine density is 0.93 g/cm2 floating on the surface. Products with talcum powder or stone powder will sink to the bottom or float due to its high density. The speed is very slow.
5, strength:
The process from the selection of raw materials to the modification of PP was completed independently, ensuring the quality of the products from the source, and the products were resistant to aging, ultraviolet rays, high temperature and low temperature, and increased the strength of the products under the guarantee of product strength. Toughness guarantees the service life of the product. Unqualified products that force folding the floor or forcefully folding the floor lock will be broken into two parts. If the product is too soft, the rebound rate of the ball cannot be achieved.
6. Flatness:
Combine two pieces of suspended composite floor of the same model and touch the seams on the surface of the floor. If there is no obvious concavity and convexity, this product is qualified. (Note: The data of qualified floor in the laboratory is floor flatness ≤0.5MM)
7, product specifications:
In the aspect of patterns, the patterns approved by the market and inspections are square, square, double, flat, and other asymmetrical or symmetrical grilles are too large to be suitable for use in sports grounds; in terms of size, the commonly used international specifications are 250*250. There are 300*300, 300.48*300.48, 330*330 and other products on the market. The thickness is 12mm, 13mm, 15mm, and 17mm. The larger the product is, the easier it is to cause problems such as floating and structural instability. The thickness is too large. It is also easy to cause structural instability. When it is too small, the vertical shock-absorbing performance will be deteriorated. The product's performance parameters are directly related to the length of the product's tendons and the performance of the raw material of the product. The test thickness of 13mm is the best value for exercise performance.
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